CN107874903A - surgical needle holder for artificial retina nail - Google Patents
surgical needle holder for artificial retina nail Download PDFInfo
- Publication number
- CN107874903A CN107874903A CN201711367164.8A CN201711367164A CN107874903A CN 107874903 A CN107874903 A CN 107874903A CN 201711367164 A CN201711367164 A CN 201711367164A CN 107874903 A CN107874903 A CN 107874903A
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- China
- Prior art keywords
- artificial retina
- needle holder
- tube
- pin
- surgical needle
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- 210000001525 retina Anatomy 0.000 title claims abstract description 50
- 238000003825 pressing Methods 0.000 claims abstract description 58
- 238000005520 cutting process Methods 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002207 retinal effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36046—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of the eye
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Radiology & Medical Imaging (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of surgical needle holder for artificial retina nail, and it includes：Outer tube, its outer wall are provided with bar, and the front end of outer tube is provided with perforate, and the rear end of outer tube is connected with what operation handle can rotate, and operation handle is provided with by compressing switch；Inner sleeve, it is fixedly arranged in outer tube, the fixed external tube needles in front end of inner sleeve, external tube needles pass the perforate of outer tube, pressing body is provided with inner sleeve, the fixed inner tube pin in front end and spring of pressing body, the one end of spring away from pressing body is fixedly arranged on inner sleeve, inner tube pin is arranged in spring and external tube needles successively, the front end of inner tube pin, which is provided with, can block the bail mouth for setting artificial retina nail, the opening direction of bail mouth is identical with the direction of bar, and pressing physical efficiency is driving inner tube pin to move axially by the presence of compressing switch.The present invention, which can adjust, holds pin direction, occupies little space, operation facility.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of artificial retina that is used for hold pin with the operation of nail
Device.
Background technology
, it is necessary to be followed closely by miniature artificial retina in the surgical procedures such as artificial retina implantation, such as titanium nail, will
Microelectrode part is fixed on retinal area, because the size of artificial retina nail is very small (generally below 10mm), therefore needs
To be operated by special operating theater instruments.
Prior art is to carry out clipping operation by scissor instrument, and still, such instrument was being opened
Space-consuming is big in journey, is unfavorable for operation technique, and existing instrument can not as needed adjust and hold pin direction, and operation is difficult
Degree is big.
The content of the invention
It is an object of the invention to provide a kind of surgical needle holder for artificial retina nail, it can adjust and hold pin side
To, occupy little space, operation facility.
The above-mentioned purpose of the present invention can be realized using following technical proposal：
The present invention provides a kind of surgical needle holder for artificial retina nail, and it includes：Outer tube, its outer wall are provided with
Bar, the front end of the outer tube are provided with perforate, and the rear end of the outer tube is connected with what operation handle can rotate, the behaviour
Make handle to be provided with by compressing switch；Inner sleeve, it is fixedly arranged in the outer tube, the fixed external tube needles in front end of the inner sleeve,
The external tube needles pass the perforate of the outer tube, and pressing body is provided with the inner sleeve, and the front end of the pressing body is fixed interior
Pipe pin and spring, the one end of the spring away from the pressing body are fixedly arranged on the inner sleeve, and said inner tube pin is arranged in successively
In the spring and the external tube needles, the front end of said inner tube pin, which is provided with, can block the bail mouth for setting artificial retina nail, described
The opening direction of bail mouth is identical with the direction of the bar, and the pressing physical efficiency is described by being driven in the presence of compressing switch
Said inner tube pin moves axially.
In a preferred embodiment, the front end of said inner tube pin is semi-cylindrical, the plane of the front end of said inner tube pin
The upper recessed bail mouth, the shape for the ailhead that the shape of the bail mouth is followed closely with the artificial retina match.
In a preferred embodiment, the outer tube includes being sheathed on the cone cylinder portion of the inner sleeve, rotation tune successively
Section portion and connecting portion, the front end in the cone cylinder portion are provided with the perforate, and bar described in the outer wall projection in the cone cylinder portion is described
The rear end in cone cylinder portion is connected with the rotation adjustment portion, and the front end of the operation handle is provided with the cutting ferrule portion with through hole, described
Connecting portion is connected with the cutting ferrule portion by what articulation can rotate.
In a preferred embodiment, the articulation is spliced by what two semi-circular tubes can be dismantled, the articulation
Front end be threadedly coupled with the connecting portion, the rear end of the articulation is provided with inner card cage, and the front end in the cutting ferrule portion is provided with outer
Buckle, the outer buckle coordinate with the gap that the inner card cage can relatively rotate.
In a preferred embodiment, the articulation include the outer shroud that is connected with the connecting portion and with the cutting ferrule portion
Connected inner ring, is provided with multiple balls between the outer shroud and the inner ring, the outer shroud can be relative by multiple balls
Rotated in the inner ring.
In a preferred embodiment, the periphery wall of the operation handle, the rotation periphery wall of adjustment portion and described
The periphery wall of articulation is equipped with anti-skidding reticulate pattern.
In a preferred embodiment, it is provided with sealing ring between the rotation adjustment portion and the connecting portion.
In a preferred embodiment, the inwall of the operation handle is provided with internal thread, and the outer wall in the cutting ferrule portion is provided with
External screw thread, the operation handle are threadedly coupled with the cutting ferrule portion.
In a preferred embodiment, the inner sleeve includes tapering and cylinder portion, and the internal diameter in the tapering is less than the cylinder
The internal diameter in portion, the rear end of the external tube needles are fixedly arranged in the tapering, and the pressing body is mobile in cartridge, institute
State and the spring is provided between pressing body and the front end face of cartridge, the spring and the fixed phase of front end face of cartridge
Even.
In a preferred embodiment, the inner sleeve also includes limiting section, after the limiting section is located at cartridge
End, radially-inwardly projection necking part, the rear end of the pressing body are provided with stroke lever, row are arranged on the stroke lever limiting section
Journey disk, the journey disk are located at side of the necking part away from the pressing body, and the external diameter of the journey disk is more than the contracting
The internal diameter of neck.
In a preferred embodiment, the outer wall for being articulated in the operation handle by compressing switch, it is described by compressing switch
Lower section be provided with and be radially into linkage block in the operation handle, the rear of the stroke lever is provided with push pipe, the push pipe energy
Mobile is arranged in the cutting ferrule portion and the operation handle and is leant with the linkage block.
In a preferred embodiment, the range of the journey disk is 0.5mm~1.5mm.
In a preferred embodiment, the length of the external tube needles is 24mm~28mm, and the external diameter of the external tube needles is
0.95mm~1.05mm, the internal diameter of the external tube needles is 0.75mm~0.85mm.
In a preferred embodiment, the length of said inner tube pin is 24mm~28mm, and the external diameter of said inner tube pin is
0.9mm~1mm, the internal diameter of said inner tube pin is 0.7mm~0.8mm.
In a preferred embodiment, the inner sleeve and the outer tube are made by titanium alloy.
The present invention be used for artificial retina with follow closely surgical needle holder the characteristics of and advantage be：
1st, the present invention by operation handle by before compressing switch and promoting pressing body in inner sleeve and be fixedly arranged on pressing body
The inner tube pin at end, enables inner tube pin to stretch out external tube needles, and artificial retina nail is set with the bail mouth card using inner tube pin front end, and
By the spring between the front end face in pressing body and the cylinder portion of inner tube pin, the return of inner tube pin and pressing body is realized, is taken
Space is small, easy to operate, reduces operating difficulty, improves the success rate of operation, safe, while reduces corrective surgery process
In pain, improve patient comfort.
2nd, inner sleeve is fixedly arranged in outer tube by the present invention, and outer tube is connected with what operation handle can rotate, with logical
The rotation adjustment portion crossed on outer tube, realize outer tube and inner sleeve relative to the synchronous rotation of operation handle, at the same by with
The connected spring of inner sleeve, the rotation of inner tube pin and pressing body synchronization is driven, to realize the circumferencial direction of the bail mouth of inner sleeve
Regulation, be easy to doctor to be accustomed to according to personal use and take nail from each angle or put nail, using flexible, and by outer tube
Outer wall sets bar, and makes the direction of bar and the direction of the bail mouth of inner tube pin identical, in being determined by bar
The opening direction of the bail mouth of pipe pin, it is easy to doctor's regulation to hold pin direction.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the main structure diagram for the surgical needle holder that the present invention is used for artificial retina nail.
Fig. 2 is the cross section structure diagram for the surgical needle holder that the present invention is used for artificial retina nail.
Fig. 3 is the structural representation of the inner sleeve for the surgical needle holder that the present invention is used for artificial retina nail.
Fig. 4 is the partial enlargement structural representation in the A portions in Fig. 3.
Fig. 5 is articulation and the cross section structure diagram of an embodiment in cutting ferrule portion of the present invention.
Drawing reference numeral explanation：
10th, outer tube；11st, cone cylinder portion；12nd, bar；13rd, adjustment portion is rotated；14th, sealing ring；15th, connecting portion；16th, it is living
Joint；
20th, inner sleeve；21st, tapering；22nd, cylinder portion；23rd, limiting section；231st, necking part；24th, external tube needles；25th, inner tube pin；
251st, bail mouth；26th, spring；27th, pressing body；281st, stroke lever；282nd, journey disk；29th, push pipe；
30th, operation handle；31st, by compressing switch；32nd, linkage block；33rd, cutting ferrule portion；
40th, artificial retina is followed closely.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In addition to non-individual defines the direction pointed out, the direction such as forward and backward, upper and lower being referred to herein is with this hair
The direction such as left and right, upper and lower in Fig. 1 shown in bright is defined, and illustrates in this together.
As shown in Figures 1 to 5, the present invention provides a kind of surgical needle holder for artificial retina nail, and it includes：Outside
Sleeve pipe 10, its outer wall are provided with bar 12, and the front end of the outer tube 10 is provided with perforate, the rear end of the outer tube 10 and operation
What handle 30 can rotate is connected, and the operation handle 30 is provided with by compressing switch 31；Inner sleeve 20, it is fixedly arranged on the outer tube
In 10, the fixed external tube needles 24 in front end of the inner sleeve 20, the external tube needles 24 pass the perforate of the outer tube 10, described interior
Pressing body 27 is provided with sleeve pipe 20, the fixed inner tube pin 25 in front end and spring 26 of the pressing body 27, the spring 26 is away from institute
The one end for stating pressing body 27 is fixedly arranged on the inner sleeve 20, and said inner tube pin 25 is arranged in the spring 26 and the outer tube successively
In pin 24, the front end of said inner tube pin 25, which is provided with, can block the bail mouth 251 for setting artificial retina nail 40, the bail mouth 251
Opening direction it is identical with the direction of the bar 12, the pressing body 27 can be driven in the presence of 31 described by compressing switch
Said inner tube pin 25 moves axially.
Specifically, outer tube 10 is substantially in a tubular form, it is used to accommodate and protects inner sleeve 20, and is held for setting for instruction
The bar 12 in pin direction and the rotation adjustment portion 13 that pin direction is held for adjustment, wherein, the opening direction of bail mouth 251 and instruction
The direction of bar 12 refers to angle direction circumferentially, and the opening direction of bail mouth 251 is the opening direction side of bail mouth 251
To the direction of bar 12 is angle direction of the bar 12 in the circumference of outer tube 10, i.e. the opening court of bail mouth 251
Angle direction to direction with bar 12 in the circumferential is identical, knows bail mouth 251 with the direction by bar 12
Opening direction, wherein, bar 12 can be the strip projection being convexly equipped on outer tube 10, or recessed in the bar on outer tube 10
Shape groove, or the strip indicating label being attached on outer tube 10；Operation handle 30 is used to hold for operator, and it is substantially in length
Shaft-like, it is hollow, to mitigate the heavy burden of operator, thereon 31 be arranged on the position that facilitates thumb to press by compressing switch,
Preferably, the end in the connecting sleeve portion 33 of operation handle 30 is arranged on, stretches out outer tube for triggering inner tube pin 25 by compressing switch 31
Pin 24, artificial retina nail 40 is set with card, preferably, the external diameter of operation handle 30 is 8.3mm；Inner sleeve 20 is also substantially in pipe
Shape, it is fixedly arranged in outer tube 10, and with the synchronous axial system of outer tube 10, it is preferred that what inner sleeve 20 was interference fitted is arranged at outer
In sleeve pipe 10, or inner sleeve 20 and the radial direction clamping of outer tube 10, such as keyway is respectively provided with inner sleeve 20 and outer tube 10, and
Set key by blocking in keyway and realize the fixation of the two, inner sleeve 20 can drive inner tube pin 25 and pressing body 27 same by spring 26
Step rotates, and inner sleeve 20 can also be moved axially forwards the pressing body 27 in it by compressing switch in the presence of 31, and in driving
Pipe pin 25 is synchronously moved axially forwards, and the front end of inner tube pin 25 is stretched out external tube needles 24, and make the bail mouth of the front end of inner tube pin 25
251 are exposed, and artificial retina nail 40 is set with card.
Further, as shown in figure 4, the front end of said inner tube pin 25 is semi-cylindrical, the front end of said inner tube pin 25
The recessed bail mouth 251 in plane, the shape of the bail mouth 251 use the shape of the ailhead of nail 40 with the artificial retina
Match, specifically, inner tube pin 25 substantially in a tubular form, to mitigate weight, is easy to doctor to use, certainly, inner tube pin 25 is alternatively
Solid cylindrical, the front end of inner tube pin 25 is in semi-cylindrical, so that the front end of inner tube pin 25 has a cambered surface and a plane, and at it
The bail mouth 251 that plane recessed ailhead shape with artificial retina nail 40 at front edge matches, bail mouth 251
Size can slightly be less than artificial retina follow closely 40 ailhead size, be set to suitable not influence card, to avoid artificial view
Film nail 40 drops, and certainly, the semi-cylindrical or hollow semicolumn tubulose that inner tube pin 25 also can be generally solid, does not do herein
Limitation, artificial retina nail 40 can be that titanium is followed closely, and its ailhead is spheroid, cone, spheroid, prism and cylinder etc.,
Shape for the ailhead with artificial retina nail 40 matches, and bail mouth 251 can be hemispherical, semicircle cone-shaped, semielliptical
Shape, semicylinder etc..
As depicted in figs. 1 and 2, the outer tube 10 includes being sheathed on the cone cylinder portion 11 of the inner sleeve 20, rotation successively
Adjustment portion 13 and connecting portion 15, the front end in the cone cylinder portion 11 are provided with the perforate, described in the outer wall projection in the cone cylinder portion 11
Bar 12, the rear end in the cone cylinder portion 11 are connected with the rotation adjustment portion 13, and the front end of the operation handle 30 is provided with tool
There is the cutting ferrule portion 33 of through hole, the connecting portion 15 is connected with the cutting ferrule portion 33 by what articulation 16 can rotate, specifically, outside
The tapering in the cone cylinder portion 11 of sleeve pipe 10 including front end and the cylinder portion of rear end, tapering from A-P flaring, the internal diameter of its perforate with it is outer
The external diameter of pipe pin 24 matches, and makes external tube needles 24 are firm to be arranged in perforate and keep fixed, its bar 12 is substantially in strip
Shape, axially extend and be radially convexly equipped in the outer wall of cone cylinder portion 11, wherein the opening direction of bail mouth 251 and bar 12 is convex
Set direction is identical, that is, is that radially outward, and the two is axially conllinear (namely the central axis of the two is conllinear), to indicate bail mouth
251 opening direction, the rear end in cone cylinder portion 11 are connected with rotating the front end of adjustment portion 13, and the two can be to be weldingly connected, or one
Shaping, ensure the two synchronous axial system, rotation adjustment portion 13 is substantially cylindrical in shape and, guarantee two mutually fixed with the cylinder portion 22 of inner sleeve 20
Person's synchronous axial system, the two can be to be interference fitted, or radial direction clamping, such as be connected by keyway, in addition, rotation adjustment portion 13 may be used also
For nut, the outer wall of inner sleeve 20 is provided with screw thread, is bolted in inner sleeve 20 by rotating adjustment portion 13, realizes inner sleeve 20 and overcoat
The fastening of pipe 10 is connected, and the direction that its fastening direction holds pin with adjustment is identical, avoids adjusting releasing when holding pin, connecting portion 15 is substantially
It is cylindrical in shape and mutually fixed with the cylinder portion 22 of inner sleeve 20, such as connecting portion 15 is closely arranged in the rear end of inner sleeve 20, i.e., two
Person can be interference fit, or the two is radial direction clamping, such as by key radial direction clamping, ensure that connecting portion 15 is synchronous with inner sleeve 20
Rotate.
In one embodiment, it is described as shown in figure 5, the articulation 16 is spliced by what two semi-circular tubes can be dismantled
The front end of articulation 16 is threadedly coupled with the connecting portion 15, enables the two synchronous axial system, and the rear end of the articulation 16 is provided with
Inner card cage, the front end in the cutting ferrule portion 33 are provided with outer buckle, and the gap that the outer buckle can relatively rotate with the inner card cage is matched somebody with somebody
Close, specifically, trapezoidal, the outer buckle in cutting ferrule portion 33 that the cross sectional shape of the inner card cage of articulation 16 generally two is axially stacking
Cross sectional shape also generally two be circumferentially superimposed it is trapezoidal, after making outer buckle button in the inner card cage, can axial limiting, avoid
Cutting ferrule portion 33 deviates from, while because the two is gap cooperation, therefore when outer tube 10 and inner sleeve 20 rotate, articulation 16 can be the same as outer
Sleeve pipe 10 and inner sleeve 20 rotate relative to operation handle 30 and cutting ferrule portion 33 together, in order to be adjusted while hand-held operation handle 30
It is whole to hold pin direction, wherein, when mounted, by articulation 16 by two semi-circular tubes be sheathed on cutting ferrule portion 33 respectively, and pass through spiral shell
The connectors such as bolt realize the fixation of two semi-circular tubes of articulation 16, then are spirally connected with connecting portion 15.In another embodiment, it is described
Articulation 16 includes the outer shroud being connected with the connecting portion 15 and the inner ring being connected with the cutting ferrule portion 33, the outer shroud with it is described
Multiple balls are provided between inner ring, the outer shroud can be rotated by multiple balls relative to the inner ring, make cutting ferrule portion 33
It is relatively fixed with inner ring, connecting portion 15 can rotate with outer shroud relative to cutting ferrule portion 33 and inner ring, in order to hand-held operation handle 30
Pin direction is held in adjustment simultaneously.
Further, the periphery wall of the operation handle 30, the periphery wall of the rotation adjustment portion 13 and the articulation
16 periphery wall is equipped with anti-skidding reticulate pattern, to increase the frictional force in doctor's operating process, prevents surgical procedure traditional Chinese medical science green hand from sliding
And it is fallen or can not adjust direction, avoid causing security incident, wherein, anti-skidding reticulate pattern can be that both sides are tied with symmetrical bending
The V-structure of structure, and its length of side can be 0.75mm~0.85mm, or anti-skidding reticulate pattern can be grid-like, triangle trellis etc..
Further, as depicted in figs. 1 and 2, it is provided with sealing ring between the rotation adjustment portion 13 and the connecting portion 15
14, to coordinate the sealing realized therebetween, avoid liquid etc. from entering gap breed bacteria, and ensure to rotate smooth, anti-rotation stop
Abrasion during dynamic to part, the abrasion occurred after particularly skidding in rotation process, i.e. connecting portion 15 and rotation adjustment portion
Sealing ring 14 is closely press between 13, and rotates mutually fixed, connecting portion 15 and inner sleeve between adjustment portion 13 and inner sleeve 20
It is mutually fixed between pipe 20, preferably, sealing ring 14 is made up of rubber, certainly, sealing ring can be also not provided with, but directly will rotation
The rear end of adjustment portion 13 is connected with the front end of connecting portion 15, is not limited herein.
Further, the inwall of the operation handle 30 is provided with internal thread, and the outer wall in the cutting ferrule portion 33 is provided with external screw thread,
The operation handle 30 is threadedly coupled with the cutting ferrule portion 33, has both realized the fixation between operation handle 30 and cutting ferrule portion 33,
Be easy to by cutting ferrule portion 33 realize with the connection of articulation 16, and can is by adjusting the length that is spirally connected of operation handle 30 and cutting ferrule portion 33
Degree, realizes the adjustment to the length of operation handle 30, and then is easy to adjust the entire length of surgical needle holder during surgical operation,
To adapt to the application of various special circumstances.
As shown in Figures 2 and 3, the inner sleeve 20 includes tapering 21 and cylinder portion 22, and the internal diameter in the tapering 21 is less than institute
The internal diameter in a portion 22 is stated, the rear end of the external tube needles 24 is fixedly arranged in the tapering 21, and the pressing body 27 is mobile to be located at
In cartridge 22, be provided with the spring 26 between the pressing body 27 and the front end face of cartridge 22, the spring 26 with
The front end face of cartridge 22 is fixed to be connected, specifically, the tapering 21 of inner sleeve 20 is provided with etc. from A-P flaring, tapering 21
Footpath through hole, the through hole in tapering 21 is relative with the bore axis of outer tube 10, and isometrical through hole, cylinder portion 22 and cone also are provided with cylinder portion 22
Between portion 21 be provided with transition bellmouth, tapering 21 be closely arranged in the front end in the cone cylinder portion 11 of outer tube 10 and with cone cylinder portion
11 front end face is abutted against, and the wearing of the rear ends of external tube needles 24 interference fit is fixed in the through hole in tapering 21 and from outer tube 10
Perforate pass, i.e., the tapering 21 of inner sleeve 20 and the cone cylinder portion 11 of outer tube 10 are used to fixing and being oriented to external tube needles 24, and protect
The degree of cooperation of external tube needles 24 and inner tube pin 25 is demonstrate,proved, cylinder portion 22 is closely arranged in the rear end (i.e. two in the cone cylinder portion 11 of outer tube 10
Person is interference fit), and cylinder portion 22 with the rotation adjustment portion 13 of outer tube 10 is fixed is connected, and cylinder portion 22 at the same with outer tube 10
Connecting portion 15 it is fixed be connected, the rear end of the fixed inner tube pin 25 of front end face of pressing body 27, while the rear end of fixed spring 26 makes
The front end of spring 26 is fixedly arranged at the front end face in a portion 22, and is made inner tube pin 25 through spring 26 and be arranged in external tube needles 24,
Wherein the length of inner tube pin 25 be more than external tube needles 24 length, do not press by compress switch 31 when, inner tube pin 25 is located at outer tube
Without stretching out external tube needles 24 inside pin 24, pressing by compressing switch after 31, inner tube pin 25 can just stretch out external tube needles 24.
Further, as shown in Figures 2 and 3, the inner sleeve 20 also includes limiting section 23, and the limiting section 23 is located at institute
The rear end in a portion 22 is stated, radially-inwardly projection necking part 231, the rear end of the pressing body 27 are provided with stroke lever to the limiting section 23
281, journey disk 282 is arranged on the stroke lever 281, and the journey disk 282 is located at the necking part 231 away from the pressing body
27 side, the external diameter of the journey disk 282 is more than the internal diameter of the necking part 231, specifically, limiting section 23 can the company of being fixedly arranged on
In socket part 15, wherein, the external diameter of limiting section 23 is more than the external diameter in the cylinder portion 22 of inner sleeve 20, is set in the connecting portion 15 of outer tube 10
There is circumferential recess, limiting section 23 is corresponding to be arranged in the circumferential recess of connecting portion 15, realizes being relatively fixed for the two, and make inner sleeve
Pipe 20 realizes axially position, or, the external diameter of limiting section 23 is equal to the external diameter in the cylinder portion 22 of inner sleeve 20, and limiting section 23 is with being connected
By key connection between portion 15, necking part 231 can be the circumferential projection, hemisphere or arc for being convexly equipped in the inwall of limiting section 23 at equal intervals
Slope, or the circumferential circumferential projection for being convexly equipped in the inwall of limiting section 23, stroke lever 281 are substantially in round bar shape, and its external diameter, which is less than, to be pressed
The external diameter of laminate 27 and the internal diameter for being less than necking part 231, the front end of stroke lever 281 are connected with the rear end of pressing body 27, journey disk
282 is substantially in the form of annular discs, and its external diameter is equal to the external diameter of pressing body 27 and equal to the internal diameter (position in addition to necking part of limiting section 23
Put) and more than the internal diameter of necking part 231, journey disk 282 synchronously moves axially under the drive of stroke lever 281, and passes through necking down
Portion 231 realizes axial limiting, in addition, the rear and front end of limiting section 23 can be also arranged in the circumferential recess of connecting portion 15 respectively
Interior, the rear end and the front end of limiting section 23 in the cylinder portion 22 of inner sleeve 20 abut against, and what stroke lever 281 moved axially is arranged in spacing
In portion 23.
In use, necking part 231 can control axial displacement, and it is the stroke and pressing body by controlling journey disk 282
27 stroke realizes Bit andits control, i.e. pressing body 27 when being travelled forward under by 31 effects that compress switch, journey disk 282 abut to
It is maximum position during the rear end of necking part 231, namely the maximum position that inner tube pin 25 can stretch out, pressing body 27 move back backward
During position, the rear end face of pressing body 27 be initial position when abutting to the front end of necking part 231, namely inner tube pin 25 is fully located at outside
In pipe pin 24, the stroke distances between maximum position and initial position are the range of inner tube pin 25, also as journey disk
(range of journey disk 282 is also that its initial position to journey disk 282 is connected at necking part 231 to 282 range
The distance between maximum position), preferably, the range of the journey disk 282 is 0.5mm~1.5mm, certainly, also may be used
According to being actually needed, suitable stroke is set.
Further, as shown in Figures 2 and 3, it is described by 31 outer walls for being articulated in the operation handle 30 that compress switch, institute
State and be provided with by 31 lower section of compressing switch and be radially into linkage block 32 in the operation handle 30, the rear of the stroke lever 281
Provided with push pipe 29, the push pipe 29 is mobile be arranged in the cutting ferrule portion 33 and the operation handle 30 and with the linkage block
32 lean, specifically, the outer wall projection drive-connecting shaft of the front end of operation handle 30, by compress switch 31 can rotate be articulated in pivot joint
On axle, linkage block 32 is cuboid, itself and the both sides up and down by compress switch 31 distributions and drive-connecting shaft, and can be synchronous around drive-connecting shaft
Rotate clockwise or rotate counterclockwise, what push pipe 29 can move axially is arranged in connecting portion 15, articulation 16, cutting ferrule portion 33
Interior, the front end of push pipe 29 is connected with the rear end of stroke lever 281, and the rear end of push pipe 29 can pass the through hole in cutting ferrule portion 33 and stretch into behaviour
Make in handle 30 to be leant with linkage block 32, and the active force of linkage block 32 can be passed to pressing body by stroke lever 281
27, and then act on inner tube pin 25, more specifically, the front end of push pipe 29 is in tapered cone barrel, and connecting portion 15 and articulation
The position worn in 16 for push pipe 29 is also the cone cylinder shape to match, to limit dominant bit during 29 forward axial displacement of push pipe
Put, and the external diameter of the front end of push pipe 29 is less than the external diameter of journey disk 282, to limit the position of the displacement axially backward of journey disk 282.
Preferably, external tube needles 24 are substantially in elongated needle tubing shape, and the length of the external tube needles 24 is 24mm~28mm, described
The external diameter of external tube needles 24 is 0.95mm~1.05mm, and the internal diameter of the external tube needles 24 is 0.75mm~0.85mm；Inner tube pin 25
Substantially it is in elongated needle tubing shape, and its length is more than the length of external tube needles 24, the length of said inner tube pin 25 is 24mm~28mm,
The external diameter of said inner tube pin 25 is 0.9mm~1mm, and the internal diameter of said inner tube pin 25 is 0.7mm~0.8mm, with by by pressing off
Close 31 and external tube needles 24 are stretched out in the presence of pressing body 27 and carry out taking pin, and pass through the common work by compress switch 31 and spring 26
With realizing the back stitching of inner tube pin 25；The inner sleeve 20 and the outer tube 10 are made by titanium alloy, and specially 5 grades of titaniums close
Golden (TI-6A1-4V), makes it have that in light weight, elasticity is good, intensity is high, nonmagnetic, rustless advantage.
The surgical needle holder for being used for artificial retina nail of the present invention when in use, is used when needing to use artificial retina
When following closely 40, doctor's hand-held operation handle 30, thumb is positioned over by compressing switch on 31, is pressed clockwise by compressing switch 31, linkage
Block 32 also rotates clockwise and abuts push pipe 29, applies active force axially forward to push pipe 29, push pipe 29 passes through stroke lever 281
Pressing body 27 is passed to, pressing body 27 drives the forward axial displacement of inner tube pin 25, to stretch out external tube needles 24, exposes bail mouth 251,
To block the ailhead for setting artificial retina nail 40 by bail mouth 251；After completing to take pin or complete fixed, doctor, which can unclamp, to press
Compressing switch 31, linkage block 32 no longer applies active force axially forward to push pipe 29, under the restoring force effect of spring 26, pressing
Body 27 drives the displacement axially backward of inner tube pin 25, and with retraction external tube needles 24, while pressing body 27 pushes against stroke lever 281, push pipe
29 axles are moved back, and 31 rotate counterclockwise rise by compressing switch, linkage block 32 also rotates counterclockwise；Pin direction is held when needing adjustment
When, doctor rotates rotation adjustment portion 13 by another hand, and rotation adjustment portion 13 drives inner sleeve 20, outer tube 10 and connecting portion
15th, articulation 16, pressing body 27, inner tube pin 25 and external tube needles 24 rotate together (and operation handle 30, by 31 and the cutting ferrule of compressing switch
Portion 33 does not turn), the regulation of the opening direction of bail mouth 251 is realized, and pass through the side of bar 12 in the circumferential on outer tube 10
To it is synchronous change, the opening direction of real time reaction bail mouth 251, be easy to doctor to be operated from all angles, especially suitable for practising
The Clinical Ophthalmology doctor that used left hand or the right hand are performed the operation.
The present invention be used for artificial retina with follow closely surgical needle holder the characteristics of and advantage be：
1st, the present invention in operation handle 30 by by the pressing body 27 to compress switch in 31 promotion inner sleeves 20 and being fixedly arranged on
The inner tube pin 25 of the front end of pressing body 27, enables inner tube pin 25 to stretch out external tube needles 24, to utilize the bail mouth 251 of the front end of inner tube pin 25
Card sets artificial retina nail 40, and passes through the spring between the front end face in pressing body 27 and the cylinder portion 22 of inner sleeve 20
26, the return of inner tube pin 25 and pressing body 27 is realized, is occupied little space, it is easy to operate, operating difficulty is reduced, improves operation
Success rate, it is safe, while the pain during corrective surgery is reduced, improve patient comfort.
2nd, inner sleeve 20 is fixedly arranged in outer tube 10 by the present invention, and the phase that outer tube 10 can be rotated with operation handle 30
Connect, by the rotation adjustment portion 13 on outer tube 10, to realize that outer tube 10 and inner sleeve 20 are synchronous relative to operation handle 30
Rotation, while the spring 26 by being connected with inner sleeve 20, inner tube pin 25 and the synchronous rotation of pressing body 27 are driven, to realize
The regulation of the circumferencial direction of the bail mouth 251 of inner sleeve 20, be easy to doctor according to personal use be accustomed to and from each angle take nail or
Nail, using flexible are put, and bar 12 is set by the outer wall in outer tube 10, and makes direction and the inner tube pin 25 of bar 12
Bail mouth 251 direction it is identical, to determine the opening direction of the bail mouth 251 of inner tube pin 25 by bar 12, be easy to cure
Pin direction is held in raw regulation.
Described above is only presently preferred embodiments of the present invention, not does any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, has in any art
Usual skill, in the range of technical solution of the present invention is not departed from, when the technology contents using the disclosure above make it is a little
The equivalent embodiment of equivalent variations is changed or is modified to, as long as being the content without departing from technical solution of the present invention, according to the present invention
Any simple modification, equivalent change and modification for being made to above example of technical spirit, still fall within the technology of the present invention side
In the range of case.
Claims (15)
1. a kind of surgical needle holder for artificial retina nail, it is characterised in that described to be used for what artificial retina was followed closely
Surgical needle holder includes：
Outer tube, its outer wall are provided with bar, and the front end of the outer tube is provided with perforate, the rear end of the outer tube and manipulator
What handle can rotate is connected, and the operation handle is provided with by compressing switch；
Inner sleeve, it is fixedly arranged in the outer tube, the fixed external tube needles in front end of the inner sleeve, and the external tube needles pass described
The perforate of outer tube, the inner sleeve is interior to be provided with pressing body, the fixed inner tube pin in front end and spring of the pressing body, the spring
One end away from the pressing body is fixedly arranged on the inner sleeve, and said inner tube pin is arranged in the spring and the external tube needles successively
Interior, the front end of said inner tube pin, which is provided with, can block the bail mouth for setting artificial retina nail, the opening direction of the bail mouth and institute
It is identical to state the direction of bar, the pressing physical efficiency drives said inner tube pin to move axially described by the presence of compressing switch.
2. the surgical needle holder according to claim 1 for artificial retina nail, it is characterised in that said inner tube pin
Front end be semi-cylindrical, the recessed bail mouth, the shape of the bail mouth and institute in the plane of the front end of said inner tube pin
The shape for stating the ailhead of artificial retina nail matches.
3. the surgical needle holder according to claim 1 for artificial retina nail, it is characterised in that the outer tube
Cone cylinder portion, rotation adjustment portion and connecting portion including being sheathed on the inner sleeve successively, the front end in the cone cylinder portion is provided with described
Perforate, bar described in the outer wall projection in the cone cylinder portion, the rear end in the cone cylinder portion is connected with the rotation adjustment portion, described
The front end of operation handle is provided with the cutting ferrule portion with through hole, the phase that the connecting portion can rotate with the cutting ferrule portion by articulation
Even.
4. the surgical needle holder according to claim 3 for artificial retina nail, it is characterised in that the articulation
It is spliced by what two semi-circular tubes can be dismantled, the front end of the articulation is threadedly coupled with the connecting portion, the articulation
Rear end be provided with inner card cage, the front end in the cutting ferrule portion is provided with outer buckle, and the outer buckle can relatively rotate with the inner card cage
Gap coordinate.
5. the surgical needle holder according to claim 3 for artificial retina nail, it is characterised in that the articulation
Including the outer shroud being connected with the connecting portion and the inner ring being connected with the cutting ferrule portion, it is provided between the outer shroud and the inner ring
Multiple balls, the outer shroud can be rotated by multiple balls relative to the inner ring.
6. the surgical needle holder for being used for artificial retina nail according to any one of claim 3 to 5, its feature exist
It is equipped with the periphery wall of, the periphery wall of the operation handle, the periphery wall of the rotation adjustment portion and the articulation anti-skidding
Reticulate pattern.
7. the surgical needle holder for being used for artificial retina nail according to any one of claim 3 to 5, its feature exist
In described rotate is provided with sealing ring between adjustment portion and the connecting portion.
8. the surgical needle holder for being used for artificial retina nail according to any one of claim 3 to 5, its feature exist
Be provided with internal thread in the inwall of, the operation handle, the outer wall in the cutting ferrule portion is provided with external screw thread, the operation handle with it is described
Cutting ferrule portion is threadedly coupled.
9. the surgical needle holder according to claim 3 for artificial retina nail, it is characterised in that the inner sleeve
Including tapering and cylinder portion, the internal diameter in the tapering is less than the internal diameter of cartridge, and the rear end of the external tube needles is fixedly arranged on the cone
In portion, the pressing body is mobile in cartridge, and institute is provided between the pressing body and the front end face of cartridge
State spring, the spring with the front end face of cartridge is fixed is connected.
10. the surgical needle holder according to claim 9 for artificial retina nail, it is characterised in that the inner sleeve
Pipe also includes limiting section, and the limiting section is located at the rear end of cartridge, and the limiting section radially-inwardly projection necking part is described
The rear end of pressing body is provided with stroke lever, and journey disk is arranged on the stroke lever, and the journey disk is located at the necking part away from institute
The side of pressing body is stated, the external diameter of the journey disk is more than the internal diameter of the necking part.
11. the surgical needle holder according to claim 10 for artificial retina nail, it is characterised in that the pressing
Switch is articulated in the outer wall of the operation handle, described that the connection being radially into the operation handle is provided with by the lower section to compress switch
Motion block, the rear of the stroke lever are provided with push pipe, and the push pipe is mobile to be arranged in the cutting ferrule portion and the operation handle
And leant with the linkage block.
12. the surgical needle holder according to claim 10 for artificial retina nail, it is characterised in that the stroke
The range of disk is 0.5mm~1.5mm.
13. the surgical needle holder according to claim 1 for artificial retina nail, it is characterised in that the outer tube
The length of pin is 24mm~28mm, and the external diameter of the external tube needles is 0.95mm~1.05mm, and the internal diameter of the external tube needles is
0.75mm~0.85mm.
14. the surgical needle holder according to claim 1 for artificial retina nail, it is characterised in that said inner tube
The length of pin is 24mm~28mm, and the external diameter of said inner tube pin is 0.9mm~1mm, the internal diameter of said inner tube pin for 0.7mm~
0.8mm。
15. the surgical needle holder according to claim 1 for artificial retina nail, it is characterised in that the inner sleeve
Pipe and the outer tube are made by titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367164.8A CN107874903B (en) | 2017-12-18 | 2017-12-18 | Surgical needle holder for artificial retina nails |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367164.8A CN107874903B (en) | 2017-12-18 | 2017-12-18 | Surgical needle holder for artificial retina nails |
Publications (2)
| Publication Number | Publication Date |
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| CN107874903A true CN107874903A (en) | 2018-04-06 |
| CN107874903B CN107874903B (en) | 2024-10-01 |
Family
ID=61771953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711367164.8A Active CN107874903B (en) | 2017-12-18 | 2017-12-18 | Surgical needle holder for artificial retina nails |
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| CN (1) | CN107874903B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108969160A (en) * | 2018-07-27 | 2018-12-11 | 深圳清华大学研究院 | A kind of intervertebral motion retaining device and its integral type implantation instrument and method for implantation |
| CN109717946A (en) * | 2019-02-01 | 2019-05-07 | 微智医疗器械有限公司 | The clamper of retinal nail |
| WO2019119218A1 (en) * | 2017-12-18 | 2019-06-27 | 深圳先进技术研究院 | Needle holder for artificial retinal tack |
| CN110522555A (en) * | 2019-08-29 | 2019-12-03 | 苏州碧利医疗科技有限公司 | A kind of artificial retina nail nail holding device and its operating method |
| CN111685878A (en) * | 2019-12-17 | 2020-09-22 | 成都博恩思医学机器人有限公司 | Bayonet structure of needle holder and needle holder control assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019119218A1 (en) * | 2017-12-18 | 2019-06-27 | 深圳先进技术研究院 | Needle holder for artificial retinal tack |
| CN108969160A (en) * | 2018-07-27 | 2018-12-11 | 深圳清华大学研究院 | A kind of intervertebral motion retaining device and its integral type implantation instrument and method for implantation |
| CN108969160B (en) * | 2018-07-27 | 2021-07-30 | 深圳清华大学研究院 | Intervertebral motion retaining device and integrated implantation instrument and implantation method thereof |
| CN109717946A (en) * | 2019-02-01 | 2019-05-07 | 微智医疗器械有限公司 | The clamper of retinal nail |
| CN109717946B (en) * | 2019-02-01 | 2024-03-26 | 微智医疗器械有限公司 | Holder for retina nail |
| CN110522555A (en) * | 2019-08-29 | 2019-12-03 | 苏州碧利医疗科技有限公司 | A kind of artificial retina nail nail holding device and its operating method |
| CN111685878A (en) * | 2019-12-17 | 2020-09-22 | 成都博恩思医学机器人有限公司 | Bayonet structure of needle holder and needle holder control assembly |
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|---|---|
| CN107874903B (en) | 2024-10-01 |
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