CN204484473U - A kind of discission needle - Google Patents
A kind of discission needle Download PDFInfo
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- CN204484473U CN204484473U CN201520083697.3U CN201520083697U CN204484473U CN 204484473 U CN204484473 U CN 204484473U CN 201520083697 U CN201520083697 U CN 201520083697U CN 204484473 U CN204484473 U CN 204484473U
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- gear
- disc base
- needle body
- column
- dwang
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Abstract
This utility model discloses a kind of discission needle, comprise dwang, the first gear, with the second gear of the first gears meshing, the column that the first gear comprises disc base, is arranged on the gear teeth of disc base upper surface, runs through disc base center; Column top is provided with groove, and groove is cylinder, and dwang runs through the center of the second gear, and dwang matches near the second gear end shape and groove shapes; The inner surface of disc base is provided with sliding-rail groove, sliding-rail groove is suitable with the projecting block shape being arranged on column outer surface, the side of disc base is provided with needle body, and one end of needle body is arranged on disc base by fastening structure, and the other end of needle body is connected with stroke film is most advanced and sophisticated vertical.This utility model realizes the second gear and the first gear-linked, and drives needle body to carry out capsulorhexis operation, has operated the capsulorhexis mouth continuous edge of rear formation, circular, avoids traditional operation to operate and causes intraoperative compliaction; Simple to operate, without the need to longer learning cycle, can proficiency level be reached.
Description
Technical field
This utility model relates to a kind of ophthalmic operating set, specifically refers to a kind of discission needle and operational approach thereof.
Background technology
At present, in extracapsular cataract extraction operation, continuous capsulorhexis is one of committed step of cataract operation, and its success or failure directly affect surgical effect and patient health.Therefore, when carrying out continuous capsulorhexis in art, often by means of Tweezers for eye surgery.The existing operational approach of surgical doctor is by the head-bent 1/4 week of No. 23 syringe needles, the angle between needle point and needle slope is made about to be 45 °, make a puncture orifice with syringe needle in the nearly center of anterior lens capsule, cut anterior capsule with the side edge arc of syringe needle, span is the capsulorhexis radius of expection.From the below of tearing leading edge, anterior capsule is upwards mentioned, then upwards, driven forward cyst membrane tearing port.Subsequently, after forming enough large cyst membrane lobe, upset cyst membrane lobe, makes its epithelial surface towards cornea, after forming cyst membrane lobe, by suitably controlling capsulorhexis direction with the conglobate capsulorhexis mouth of shape.
Wherein in capsulorhexis process, the size of capsulorhexis mouth is not easy to control, and each surgical doctor operational capacity is different, and capsulorhexis mouth size also has very large difference, is even difficult to form circular capsulorhexis mouth; And impact uses traditional discission needle to obtain the factor of desirable capsulorhexis mouth a lot, as cornea amplification can make capsulorhexis mouth seen by surgical doctor larger than real; Pupil size is on the impact of operation; The shape of capsulorhexis mouth is asymmetric causes intraocular lens's off-center.Meanwhile, use traditional discission needle easily to occur intraoperative compliaction, anterior capsule tearing edge is discontinuous, and capsulorhexis mouth is torn to periphery and involved Suspensory ligament etc. problem.Simultaneously, surgical doctor need be accumulated experience by longer learning cycle, skillfully could use traditional discission needle, especially for the cataract situation of some complexity, as pediatric cataract, glaucoma, cataract patient etc. that is superhard or excessively soft, ciliary Zonular weakness, adopt traditional discission needle to tear curvilinear capsulorhexis continuously and can bring difficulty, easily cause other operative complications.
Utility model content
The purpose of this utility model is: provide a kind of discission needle, solves surgical doctor and relies on experience to carry out capsulorhexis operation, and capsulorhexis process is not easy to control capsulorhexis mouth size and causes the problems such as capsulorhexis success rate is low.This utility model is by arranging the first gear and the second gear, by rotating the dwang on the second gear, second gear and the first gears meshing, and then drive the first gear simultaneously, be arranged on needle body on the first gear and rotate, cataract anterior capsule is scratched by according to predetermined radius of circle in the film tip of drawing of needle body lower end, carry out capsulorhexis, whole operating process is avoided empirically operating, and capsulorhexis mouth-shaped is symmetrical, the flush edge torn, improve the success rate of operation, and be convenient to surgical doctor operation.
This utility model is achieved through the following technical solutions: a kind of discission needle, comprise dwang, the first gear, with the second gear of the first gears meshing, the column that the first gear comprises disc base, is arranged on the gear teeth of disc base upper surface, runs through disc base center; The top of column is provided with groove, and groove is cylinder, and dwang runs through the center of the second gear, and dwang matches near the second gear end shape and groove shapes; The inner surface of disc base is provided with sliding-rail groove, sliding-rail groove is suitable with the projecting block shape being arranged on column outer surface, the side of disc base is provided with needle body, and one end of needle body is arranged on disc base by fastening structure, and the other end of needle body is connected with stroke film is most advanced and sophisticated vertical.
By arranging the first gear in this utility model, second gear, dwang, one end of dwang is connected with column, rotary motion bar, second gear rotates, gear teeth meshing on the gear teeth on second gear and the first gear, and then second the translating rotation of gear vertical direction be the rotary motion of the first gear horizontal direction, the needle body being positioned at the first gear side that rotarily drives of the first gear rotates thereupon, the rotation of needle body drives the film tip of drawing being positioned at needle body lower end to puncture at anterior capsule, and according to predetermined radii track capsulorhexis, form the circular cyst membrane lobe of pre-sizing, the wherein length of needle body, the radius of disc base is all arranged according to the radius of capsulorhexis film, fastening structure in this utility model, be mainly used in the connection realizing needle body and disc base, needle body is horizontally fixed on disc base, needle body shape is Long Circle, and needle body length has plurality of specifications available, and then the radius size that adjustable needle body and column center are formed, by arranging radius, draw film during operation most advanced and sophisticated according to predetermined radii capsulorhexis, avoiding the factors such as surgical doctor experiential operating affects capsulorhexis success rate, this utility model arranges sliding-rail groove by the inner surface at disc base, at the outer surface of column, projecting block is set, wherein sliding-rail groove is positioned at the relative medial surface of disc base, and the number of sliding-rail groove is even number, projecting block is positioned at the relative outer surface of column, the shape of projecting block and the shape of sliding-rail groove suitable, projecting block can slide in sliding-rail groove, thus control the distance that column is positioned at disc base lower end, and the distance of film distance between two tips operation site of action is drawn in adjustment, is conducive to operating in limited operative space.
Further, for better realizing this utility model, described needle body and the uprights vertical being positioned at disc base upper end, between needle body and stroke film tip, angle is 90 degree, and needle body is positioned at homonymy with the column being positioned at disc base lower end, can according to capsulorhexis film radius, determine selected needle body specification, when needle structure and the column being positioned at disc base upper end are mutual vertical, i.e. needle structure and the vertical pillar construction axes normal running through disc base center, the radius of capsulorhexis mouth is most advanced and sophisticated equal to the distance at column center with stroke film of needle body lower end, namely equal needle body length and add disc base radius.
Further, for better realizing this utility model, described projecting block is positioned at the lower end of groove, and limit further the relative position of the groove be all arranged on column and projecting block here, preferred projecting block is positioned at the lower end of groove structure.
Further, for better realizing this utility model, described stroke of film tip is del bilateral cutter head, and the length of drawing film tip is L
3, 0.3mm≤L
3≤ 0.5mm.
Further, for better realizing this utility model, the radius of described disc base is r, 0mm < r≤4.5mm, and the preferred 0.5mm≤r≤1.5mm of the limited space for the site of action of cataract operation, described needle body length is L
2, 0mm≤L
2, 2.5mm≤r+ L
2≤ 4.5mm, works as L
2when getting 0mm, then do not adopt needle structure, draw film tip and be set directly at the side of disc base, and with the horizontal plane of disc base, the wherein preferred 2mm≤L of needle body length
2≤ 3mm, the described stroke of most advanced and sophisticated distance to column center of film is 2.5mm ~ 4.5mm, namely operation technique tears the radius of cyst membrane is 2.5mm ~ 4.5mm, and to arrange the end that column is positioned at disc base end portion be coniform, reduce, with the contact area of operation site of action, in favourable Rhizoma Atractylodis Macrocephalae, to fix discission needle.
Further, for better realizing this utility model, it is identical that the thickness of described second gear equals disc base radius size, and preferably the thickness of the second gear is 0.5mm ~ 1.5mm.
Further, for better realizing this utility model, the diameter of the second gear is D
1, the fore-and-aft distance that described column is positioned at disc base upper end is L
1, L
1-D
1≤ 0.1mm, the radius size of the second gear and the radius size of the first gear and mating shapes, realize engaging each other, and the rotation of the second gear can drive the rotation of the first gear, the preferred 1.0mm≤D of diameter of the second gear
1≤ 2.0mm, better can improve the matching degree between the gear teeth of the first gear and the gear teeth of the second gear.
Further, for better realizing this utility model, described discission needle also comprises moving runner, and moving runner is coaxial with the second gear, and is positioned at dwang one end away from column.By the setting of moving runner, convenient operation dwang, rotates moving runner, thus realizes the interlock of the second gear and the first gear.
Further, for better realizing this utility model, fastening structure is thread gluing or buckle or snap close, and the kind of fastening structure has multiple, and needle body all can be realized to be fixed on disc base, prevent from needle body from following in disc base rotation process to drop, and disposable capsulorhexis can be realized, and capsulorhexis mouth continuous edge, circular, between two parties, the intraoperative compliaction of traditional approach capsulorhexis can effectively be avoided.
Further, for better realizing this utility model, described column, dwang, needle body, a stroke film tip all adopt metal material.
Operational approach of the present utility model, comprises the steps:
One end of A1, dwang is connected with the matching grooves be arranged on column, rotates moving runner, and dwang starts to rotate, and also directly can rotate dwang, thus drive the second gear successively, the first gear moves in a circle;
A2, the sliding-rail groove being arranged on disc base inner surface mate with the projecting block be arranged on column outer surface and are connected, the number of sliding-rail groove is identical with the number of projecting block, adjustable is positioned at the column distance of disc base lower end, and then adjustable draws the distance of film tip to operation site of action;
A3, needle body is arranged on the side of disc base by fastening structure;
A4, set dwang place axle as X-axis, column place axle is Y-axis, rotary motion is taken turns, dwang axle centered by X-axis is rotated, the second gear axle centered by X-axis is driven to rotate, the mechanical rotation of the second gear drives disc base, needle body axle centered by Y-axis to move in a circle simultaneously, draws film tip beginning continuous circular and scratches cyst membrane.
This utility model compared with prior art, has the following advantages and beneficial effect:
(1) this utility model is by arranging the first gear, the second gear, operation dwang, realize the second gear and the first gear-linked, and drive needle body to carry out capsulorhexis operation, operate the capsulorhexis mouth continuous edge of rear formation, rounded, and avoid adopting traditional operation to operate the intraoperative compliaction caused;
(2) this utility model is simple to operate, without the need to longer learning cycle, can reach proficiency level;
(3) this utility model is by the length of adjustment needle body, the radius of disc base, and then realizes the capsulorhexis film radius of adjustment operation technique, according to the needs of different patient, can select needle body and the disc base of different size.
(4) this utility model arranges projecting block by the outer surface at column, arranges sliding-rail groove at the inner surface of disc base, and projecting block mates with sliding-rail groove and is connected, and projecting block can slide in sliding-rail groove, and then adjustment column is positioned at the distance of disc base lower end.
(5) the capsulorhexis mouth size in this utility model, according to presetting, not being vulnerable to the factor impacts such as operator's experience, cornea refractive power, pupil size, improve the success rate of capsulorhexis.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation drawing film tip in this utility model structure;
Fig. 3 is the structural representation of projecting block, sliding-rail groove in this utility model structure
Wherein: 1-column, 2-gear teeth, 3-fastening structure, 4-needle body, 5-draw film tip, 6-groove, the 7-the second gear, 8-moving runner, 9-dwang, 10-disc base, 11-projecting block, 12-sliding-rail groove.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of discission needle, the column 1 comprising dwang 9, first gear, comprise disc base 10, be arranged on the gear teeth 2 of disc base 10 upper surface, run through disc base 10 center with the second gear 7, first gear of the first gears meshing; The top of column 1 is provided with groove 6, and groove 6 is cylinder, and dwang 9 runs through the center of the second gear 7, and dwang 9 is near the second gear 7 end shape and groove 6 mating shapes; The inner surface of disc base 10 is provided with sliding-rail groove 12, sliding-rail groove 12 is suitable with projecting block 11 shape being arranged on column 1 outer surface, the side of disc base 10 is provided with needle body 4, one end of needle body 4 is arranged on disc base 10 by fastening structure 3, the other end of needle body 4 with draw that film tip 5 is vertical to be connected.
By arranging the first gear in this utility model, second gear 7, dwang 9, one end of dwang 9 is connected with column 1, rotary motion bar 9, second gear 7 rotates, the gear teeth on second gear 7 and the gear teeth meshing on the first gear, and then second the translating rotation of vertical direction of gear 7 be the rotary motion of the first gear horizontal direction, the needle body being positioned at the first gear side that rotarily drives of the first gear rotates thereupon, the rotation of needle body 4 drives the film tip 5 of drawing being positioned at needle body 4 lower end to puncture at anterior capsule, and according to predetermined radii track capsulorhexis, form the circular cyst membrane lobe of pre-sizing, the wherein length of needle body 4, the radius of disc base 10 all can pre-set according to the radius of capsulorhexis film, fastening structure 3 in this utility model, be mainly used in the connection realizing needle body 4 and disc base 10, needle body 4 is horizontally fixed on disc base 10, needle body 4 shape is Long Circle, and needle body 4 length has plurality of specifications available, and then the radius size that adjustable needle body 4 is formed with column 1 center, by arranging radius, draw film tip 5 during operation according to predetermined radii capsulorhexis, avoiding the factors such as surgical doctor experiential operating affects capsulorhexis success rate, this utility model is by arranging sliding-rail groove 12 at the inner surface of disc base 10, at the outer surface of column 1, projecting block 11 is set, wherein sliding-rail groove 12 is positioned at the relative medial surface of disc base 10, and the number of sliding-rail groove 12 is even number, projecting block 11 is positioned at the relative outer surface of column 1, the shape of projecting block 11 and the shape of sliding-rail groove 12 suitable, projecting block 11 can slide in sliding-rail groove 12, thus control the distance that column 1 is positioned at disc base 10 lower end, and adjust the distance of the most advanced and sophisticated 5 distance operation site of actions of synovial membrane, be conducive to operating in limited operative space.Other structures related in this utility model and principle are the common practise in affiliated field, repeat no more.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, described needle body 4 and the axes normal of column 1 being positioned at disc base 10 upper end, between needle body 4 and stroke film tip 5, angle is 90 degree, and needle body 4 structure is positioned at homonymy with the column 1 being positioned at disc base 10 lower end, can according to capsulorhexis film radius, determine the specification selecting needle body 4, when needle body 4 structure is with when being positioned at the column 1 structural vertical axes normal of disc base 10 upper end, the radius of capsulorhexis mouth is equal with the distance of drawing 5 to column 1 center, film tip of needle body 1 lower end, and the length namely equaling needle body 4 adds disc base 10 radius.Repeat no more.
Embodiment 3:
The present embodiment limits further on the basis of above-described embodiment, and described projecting block 11 is positioned at the lower end of groove 6.Here limit further the groove 6 be all arranged on column 1 and projecting block 11 relative position, preferred projecting block 11 is positioned at the lower end of groove 6 structure.Other structures of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 4:
The present embodiment limits further on the basis of above-described embodiment, and described stroke of film most advanced and sophisticated 5 is del bilateral cutter head, and the length of drawing film tip 5 is L
3, 0.3mm≤L
3≤ 0.5mm; The radius of described disc base 10 is r, 0mm < r≤4.5mm, and preferred 0.5mm≤r≤1.5mm; Described needle body 4 length is L
2, L
2>=0mm, and preferred 2mm≤L
2≤ 3mm, and limit 2.5mm≤r+L further
2≤ 4.5mm; R+ L
2sum is the horizontal range of drawing 5 to column center, film tip 1, also the radius size 2.5mm ~ 4.5mm of cyst membrane when carrying out capsulorhexis operation is, cyst membrane radius equals disc base 10 radius and needle body 4 length sum, also be preferably limiting further that disc base 10 radius and needle body 4 length sum are made, work as L
2when length is 0mm, the radius of disc base is maximum is no more than 4.5mm; The thickness size of described second gear 7 is identical with the radius size of disc base, and in view of the site of action narrow space of discission needle operation, preferably the thickness size of the second gear 7 is 0.5mm ~ 1.5mm further; The diameter D of described second gear 7
1, the fore-and-aft distance that described column 1 is positioned at disc base 10 upper end is L
1, L
1-D
1≤ 0.1mm, preferably the diameter of the second gear 7 is 1.0mm≤D further
1≤ 2.0mm, realizes engaging between the second gear 7 and the gear teeth of the first gear, and the rotation realizing the second gear drives the rotation of the first gear, and can reduce discission needle structure further in the space that takies of operation site of action, convenient surgical staff capsulorhexis operation.Below be the length to synovial membrane tip 5 respectively, the radius of disc base 10, the length of needle body 4, the thickness of the second gear 7 and the technological parameter of diameter limit, wherein needle body 4 length, the restriction of disc base 10 radius, then define the radius of capsulorhexis film, therefore can according to the difference of the operative site size of patient, the length of adjustment needle body 4, the radius of disc base 10, makes the cyst membrane radius of tearing meet the standard pre-set, and flush edge; The wherein thickness of the second gear 7 and the restriction of diameter, and be positioned at the length relation of disc base 10 upper end distance with column 1, then ensure that discission needle of the present invention can operate in limited operative space.Other structures of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 5:
The present embodiment limits further on the basis of above-described embodiment, described discission needle structure also comprises moving runner 8, moving runner 8 is coaxial with the second gear 7, and be positioned at dwang 9 one end away from column 1, by the setting of moving runner 8, convenient operation dwang 9, thus drive the second gear 7 to rotate, and then realize the interlock of the second gear 7 and the first gear.Other structures of the present embodiment are same as the previously described embodiments, repeat no more.
Implement 6:
The present embodiment limits further on the basis of above-described embodiment, and described fastening structure 3 is thread gluing or buckle.The kind of fastening structure 3 has multiple, and needle body 4 all can be realized to be fixed on disc base 10, prevents needle body 4 from following in disc base 10 rotation process and drops, and disposable capsulorhexis can be realized, and capsulorhexis mouth continuous edge, circular, between two parties, the intraoperative compliaction of traditional approach capsulorhexis can be avoided.Other structures of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 7:
The present embodiment limits further on the basis of above-described embodiment, described column 1, dwang 9, solid 4, stroke film most advanced and sophisticated 5 adopt metal materials, and other structures all adopt metal material in this utility model, and medical material, be convenient to sterilization, stability and safety operation.Other structures of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 8:
When discission needle in application this utility model embodiment carries out cataract cephacoria capsulorhexis, first one end of dwang 9 is mated with the groove 6 on column 1 and be connected; The sliding-rail groove 12 being arranged on disc base 10 inner surface is carried out coupling with the projecting block 11 be arranged on column 1 outer surface be connected, wherein projecting block 11 can slide in sliding-rail groove 12, and then adjustment column 1 is positioned at the distance of disc base 10 lower end; Needle body 4 is arranged on the side of disc base 10 by fastening structure 3, and with the distance of drawing the most advanced and sophisticated 5 distance operative sites of film of needle body 4 structure vertical, be convenient to follow-up capsulorhexis operation; Then rotary motion bar 9 or moving runner 8, second gear 7 starts to rotate, the mechanical rotation of the second gear 7 drives the rotation of the first gear, needle body 4 successively, draw film most advanced and sophisticated 5 and start continuous capsulorhexis, wherein set dwang 9 place axle as X-axis, column 1 place axle is Y-axis, when moving runner 8 rotates, dwang 9 axle centered by X-axis is rotated, the second gear 7 axle centered by X-axis is driven to rotate, the mechanical rotation of the second gear 7 drives disc base 10 simultaneously, needle body 4 axle centered by Y-axis moves in a circle, and then draws most advanced and sophisticated 5 continuous circular of film and scratches cyst membrane.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to this utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls into protection domain of the present utility model.
Claims (10)
1. a discission needle, it is characterized in that: comprise dwang (9), the first gear, with second gear (7) of the first gears meshing, the column (1) that the first gear comprises disc base (10), is arranged on the gear teeth (2) of disc base (10) upper surface, runs through disc base (10) center; The top of column (1) is provided with groove (6), and groove (6) is cylinder, and dwang (9) runs through the center of the second gear (7), and dwang (9) is near the second gear (7) end shape and groove (6) mating shapes; The inner surface of disc base (10) is provided with sliding-rail groove (12), and sliding-rail groove (12) is suitable with projecting block (11) shape being arranged on column (1) outer surface; The side of disc base (10) is provided with needle body (4), and one end of needle body (4) is arranged on disc base (10) by fastening structure (3), and the other end of needle body (4) is connected with stroke film tip (5) is vertical.
2. a kind of discission needle according to claim 1, is characterized in that: described needle body (4) and column (1) axes normal being positioned at disc base (10) upper end, between needle body (4) and stroke film tip (5), angle is 90 degree.
3. a kind of discission needle according to claim 1, is characterized in that: described projecting block (11) is positioned at the lower end of groove (6).
4. a kind of discission needle according to claim 2, is characterized in that: described stroke of film tip (5) is del bilateral cutter head, and the length of drawing film tip (5) is L
3, 0.3mm≤L
3≤ 0.5mm.
5. a kind of discission needle according to any one of Claims 1-4, is characterized in that: the radius of described disc base (10) is r, 0mm < r≤4.5mm, and described needle body (4) length is L
2, L
2>=0mm, 2.5mm≤r+ L
2≤ 4.5mm.
6. a kind of discission needle according to claim 5, is characterized in that: the thickness of described second gear (7) equals the radius size of disc base (10).
7. a kind of discission needle according to claim 6, is characterized in that: the diameter of described second gear (7) is D
1, the fore-and-aft distance that described column (1) is positioned at disc base (10) upper end is L
1, L
1-D
1≤ 0.1mm.
8. a kind of discission needle according to claim 7, is characterized in that: also comprise moving runner (8), moving runner (8) and the second gear (7) concentricity axle, and is positioned at dwang (9) one end away from column (1).
9. a kind of discission needle according to claim 7, is characterized in that: described fastening structure (3) is thread gluing or buckle or snap close.
10. a kind of discission needle according to claim 9, is characterized in that: described column (1), dwang (9), needle body (4), a stroke film tip (5) all adopt metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083697.3U CN204484473U (en) | 2015-02-06 | 2015-02-06 | A kind of discission needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083697.3U CN204484473U (en) | 2015-02-06 | 2015-02-06 | A kind of discission needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204484473U true CN204484473U (en) | 2015-07-22 |
Family
ID=53563772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520083697.3U Withdrawn - After Issue CN204484473U (en) | 2015-02-06 | 2015-02-06 | A kind of discission needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204484473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605975A (en) * | 2015-02-06 | 2015-05-13 | 邓欣然 | Discission needle and operation method thereof |
-
2015
- 2015-02-06 CN CN201520083697.3U patent/CN204484473U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104605975A (en) * | 2015-02-06 | 2015-05-13 | 邓欣然 | Discission needle and operation method thereof |
| CN104605975B (en) * | 2015-02-06 | 2016-08-24 | 邓欣然 | A kind of discission needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |