CN104224281A - Surgical knife with adjustable protection sheath - Google Patents
Surgical knife with adjustable protection sheath Download PDFInfo
- Publication number
- CN104224281A CN104224281A CN201410529748.0A CN201410529748A CN104224281A CN 104224281 A CN104224281 A CN 104224281A CN 201410529748 A CN201410529748 A CN 201410529748A CN 104224281 A CN104224281 A CN 104224281A
- Authority
- CN
- China
- Prior art keywords
- sheath
- protect
- cutter head
- surgical knife
- governor motion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
- A61B2017/32113—Surgical scalpels, knives; Accessories therefor with extendable or retractable guard or blade
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
Abstract
The invention discloses a surgical knife with an adjustable protection sheath. The surgical knife comprises an inner knife tube, a knife head connected with the first end of the inner knife tube, the protection sheath, an adjusting mechanism connected to the protection sheath and a connecting body, the knife head is sleeved with the protection sheath, the inner knife tube is sleeved with the connecting body, the connecting body is connected with the adjusting mechanism, and the adjusting mechanism controls the protection sheath to move front and back relative to the knife head. The adjusting mechanism convenient to operate with one hand is designed, the protection sheath can move front and back relative to the knife head, cutting efficiency is improved, operation difficulty is lowered, the structure is simple, and operation is convenient.
Description
Technical field
The present invention relates to a kind of operation cutter, particularly relate to and a kind ofly protect the adjustable surgical knife of sheath.
Background technology
Clinically; when carrying out the cutting of operating tissue; lesion tissue organizes even prior nerve and blood vessel interpromoting relation in five elements together usually and normally; and bistrique carries out tissue cutting usually; lack and effectively protect sheath protection; or simple, fixing protects sheath shape, structure, applied environment complicated clinically can not be adapted to, thus effectively can not protect normal structure.Simultaneously when cutting, be difficult to relatively fixing between tissue and cutter, the careless slightly cutting position that just may make departs from, thus increases the danger of patient.As run into the operation of more complicated, need organizing of cutting comparatively large, utilize universal cutter to carry out cutting wasting time and energy very much, operating difficulty is large.
Therefore, a kind of cutter of current exigence, can not need the tissue cut by available protecting, accurately locates simultaneously, cut and organize fast, efficiently, shorten operating time, improve cutting efficiency and operation safety degree in operation.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind ofly protects the adjustable surgical knife of sheath, devises a kind of governor motion being convenient to one-handed performance, can make to protect the relative cutter head of sheath and move forward and backward, improve cutting efficiency, improve operation safety degree, reduce operating difficulty, structure is simple, easy to operate.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of and protect the adjustable surgical knife of sheath, comprise interior cutter pipe, the cutter head be connected with described interior cutter pipe first end, be set in and protect sheath outside described cutter head, protect the governor motion on sheath described in being connected to, and be set in the connector be connected on described interior cutter pipe and with described governor motion, protect the relatively described cutter head of sheath described in described governor motion controls and move forward and backward.
Further, described in protect the adjustable surgical knife of sheath and also comprise outer cutter pipe, described outer cutter pipe box to be located on described interior cutter pipe and to be fixed on the first end of described connector.
Further, described governor motion has pressing operation bar.
Further, described pressing operation bar is connected with the spring that described pressing operation bar can be made to reset.
Further, described in protect sheath in a tubular form, described in protect sheath first end sidewall at least there is an opening, described in protect sheath the second end be connected with described governor motion.
Further, the smooth-sided compression candles of described cutter head and protect described in being positioned at sheath first end and can relative to described in protect sheath and rotate, the first end end face of described cutter head is provided with the sword that can cut and organize.
Further, second end of described cutter head is provided with the U-lag of notch to adduction, the first end of described U-lag and described interior cutter pipe is connected, and described cutter head is fixed on the first end of described outer cutter pipe and described cutter head has the single rotary freedom coaxial with outer cutter pipe.
Further, protect sheath described in be connected with described governor motion and can not external being set in outside outer cutter pipe of rotating of cutter pipe mutually.
Further, the opposite end protecting sheath and governor motion link described in is provided with the closed tubular body of circumference.
Further, described cutter head relatively described in protect front dead point that sheath moves forward and backward and exceed end face near described governor motion side on tubular body that described circumference closes.
Further, described cutter head relatively described in protect front dead point that sheath moves forward and backward be no more than described in protect the end face of sheath first end.
Further, each opening near described in protect sheath first end on be provided with at least one towards described projection of protecting the second end of sheath.
The present invention devises a kind of can making and protects the movable governor motion of the relative cutter head of sheath, namely the distance of protecting sheath end and described cutter head can be regulated, the blade of cutter head front end can be made to cut and organize, increase cutting mode, expand cut coverage, be beneficial to the carrying out of operation, reduce operating difficulty, structure is simple, easy to operate; Also be provided with towards described projection of protecting the second end of sheath at the described opening part protecting sheath, be mainly used in catching on and cut tissue, make tissue positioned, be convenient to cutting, in addition, governor motion be arranged on and protect on sheath and connector, be convenient to one-handed performance.
Accompanying drawing explanation
Fig. 1 is the partial schematic diagram that the present invention protects the adjustable surgical knife of sheath.
Fig. 2 is schematic partial cross-sectional view of the present invention.
Fig. 3 is partial schematic diagram of the present invention.
Fig. 4 is the structural representation of bistrique in the present invention.
Fig. 5 is the partial schematic diagram of interior cutter pipe in the present invention.
Fig. 6 is the structural representation of pressing operation bar in the present invention.
Fig. 7 is the partial schematic diagram in the embodiment of the present invention 4.
Detailed description of the invention
Below in conjunction with drawings and Examples, set forth the present invention further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
Embodiment 1
Please refer to shown in Fig. 1 and Fig. 2, the better embodiment that the present invention protects the adjustable surgical knife of sheath comprises: outer cutter pipe 1, interior cutter pipe 2, cutter head 3, connector 4, governor motion 5 and protect sheath 6.
Described interior cutter pipe 2 to be located in described outer cutter pipe 1 and can with described outer cutter pipe 1 coaxial rotation, described cutter head 3 is all connected with the first end of described interior cutter pipe 2 and the first end of outer cutter pipe 1, the described sheath 6 that protects is set in outside described outer cutter pipe 1 and cutter head 3, described connector 4 is set in the second end of described interior cutter pipe 2 and is fixedly connected with the second end of described outer cutter pipe 1, protect on sheath 6 described in one end of described governor motion 5 is fixed on, the other end is flexibly connected with described connector 4.Protect the relatively described cutter head 3 of sheath 6 described in described governor motion 5 controls to move forward and backward.
Shown in Fig. 1, described governor motion 5 comprises pressing operation bar 51, spring 52 and drive link 53, the first end of described pressing operation bar 51 is movably arranged on connector 4, and the second end of described pressing operation bar 51 and the first end of described drive link 53 are rotationally connected.Described pressing operation bar 51 is connected with the spring 52 that described pressing operation bar 51 can be made to reset, namely the two ends of described spring 52 respectively with described pressing operation bar 51 and drive link 53 inconsistent, the second end and the described first end protecting sheath 6 of described drive link 53 are fixed.
Please refer to shown in Fig. 1 and Fig. 6, specifically, described pressing operation bar 51 is in T shape, the first end of described pressing operation bar 51 is set to jaws, the outer circumference of first end of described connector 4 is symmetrically arranged with two chutes, the first end of described pressing operation bar 51 is arranged in clamp position in described two chutes, and can move up and down in described chute.
Describedly protect sheath 6 in a tubular form, described in protect sheath 6 first end sidewall be provided with an opening 61, described in protect sheath 6 the second end to be connected with described governor motion 5 and can not external being set in outside outer cutter pipe 1 of rotating of cutter pipe 1 mutually.Described opening 61 near described in protect sheath 6 first end on be provided with one towards described projection 62 of protecting the second end of sheath 6, be mainly used in catching on and cut tissue, make tissue positioned, be convenient to cutting.It should be noted that, described opening 61 and described protruding 62 all at least arranges one, only to arrange an opening 61 and a projection 62 is described in the present embodiment.
Please refer to shown in Fig. 2 and Fig. 3, the smooth-sided compression candles of described cutter head 3 and protect described in being positioned at sheath 6 first end and can relative to described in protect sheath 6 and rotate, the first end end face of described cutter head 3 is provided with the sword 31 that can cut and organize.Second end of described cutter head 3 is provided with the U-lag 32 of notch to adduction, described U-lag 32 is connected with the first end of described interior cutter pipe 2, described cutter head 3 is fixed on the first end of described outer cutter pipe 1 and described cutter head 3 has the single rotary freedom coaxial with outer cutter pipe 1, namely described cutter head 3 is connected with the first end of described interior cutter pipe 2, and with outer cutter pipe 1 axial restraint, can mutually externally cutter pipe 1 rotate.
Please refer to shown in Fig. 4 and Fig. 5, specifically, the link of described cutter head 3 is provided with the U-lag 32 of notch to adduction, and the first end of described interior cutter pipe 2 is provided with union joint 21, and described union joint 21 removably connects with described U-lag 32.Described cutter head 3 is provided with annular groove 33, described outer cutter pipe 1 is provided with the fixing hole 11 corresponding with described annular groove 33, described annular groove 33 and by steady pin (scheming not shown), cutter head 3 is fixing to make described cutter head 3 have the single rotary freedom coaxial with outer cutter pipe 1 with outer cutter pipe 1 with corresponding fixing hole 11.
Shown in Fig. 3, described in protect sheath 6 and the opposite end of governor motion 5 link and be provided with the tubular body 63 that circumference closes.Specifically, described in protect sheath 6 first end be provided with the tubular body 63 of a side face closed interior hollow, protect the first end end face of sheath 6 described in the first end end face of described tubular body 63 is, the second end end face of described tubular body 63 overlaps with the end face of described opening 61.
When operator presses pressing operation bar 51 downwards with hands, the first end of described pressing operation bar 51 moves down along described chute, because described connector 4 is fixed on driving device (scheming not shown), can not move by internal cutter pipe 2 mutually, so now described drive link 53 under the impetus of spring 52, the first end of described drive link 53 rotates relative to the second end of described pressing operation bar 51, the first end protecting sheath 6 described in second end control of described drive link 53 moves to the direction of cutter head 3, namely the distance of protecting sheath 6 first end and described cutter head 3 first end is shortened.Carry out tissue cutting time, described in protect the effect that sheath 6 can play tissue positioned, make the blade on cutter head 3 first end end face can carry out tissue cut, cut coverage can be made to expand, be beneficial to the carrying out of operation.Protect sheath 6 and the distance of cutter head 3 as increased, unclamp the relative position that pressing operation bar 51 can recover to protect sheath 6 and cutter head 3.
Described cutter head 3 relatively described in protect the movable front dead point of sheath 6 and exceed end face near described governor motion 5 side on tubular body 63 that described circumference closes.The described sheath 6 that protects can move forward and backward by relatively described cutter head 3 under the control of governor motion 5, comparatively speaking, can regard as described cutter head 3 relatively described in protect sheath 6 and move forward and backward, described cutter head 3 relative to described in protect sheath 6 move to the described first end direction protecting sheath 6 time, after the pressing operation bar 51 being about to be in pressed state discharges, the described sheath 6 that protects is when described cutter head 3 moves to the second end of described interior cutter pipe 2, and the extreme position that the first end end face of described cutter head 3 can arrive can exceed the second end end face of the tubular body 63 that described circumference is closed.
Embodiment 2
The surgical knife that the present invention protects sheath adjustable comprises: interior cutter pipe 2, cutter head 3, connector 4, governor motion 5 and protect sheath 6.
Described cutter head 3 is fixed on the first end of described interior cutter pipe 2, the described sheath 6 that protects is set in outside described interior cutter pipe 2 and cutter head 3, described connector 4 is set in the second end of described interior cutter pipe 2 and is flexibly connected with one end of described governor motion 5, protects on sheath 6 described in the other end of described governor motion 5 is fixed on.Protect the relatively described cutter head 3 of sheath 6 described in described governor motion 5 controls to move forward and backward.Specifically, in the present embodiment, without outer cutter pipe, described cutter head 3 is fixedly connected with described interior cutter pipe 2, and other are with embodiment 1.
Embodiment 3
The present embodiment changes on the basis of embodiment 1, by described cutter head 3 relatively described in protect the movable front dead point of sheath 6 end face exceeded near described governor motion 5 side on tubular body 63 that described circumference closes become described cutter head 3 relatively described in protect the movable front dead point of sheath 6 be no more than described in protect the end face of sheath 6 first end.Specifically, described in protect sheath 6 first end be provided with the tubular body 63 of a side face closed interior hollow, protect the first end end face of sheath 6 described in the first end end face of described tubular body 63 is.The described sheath 6 that protects can move forward and backward by relatively described cutter head 3 under the control of governor motion 5, comparatively speaking, can regard as described cutter head 3 relatively described in protect sheath 6 and move forward and backward, described cutter head 3 relative to described in protect sheath 6 move to the described first end direction protecting sheath 6 time, after the pressing operation bar 51 being about to be in pressed state discharges, the described sheath 6 that protects is when described cutter head 3 moves to the second end of described interior cutter pipe 2, the extreme position that the first end end face of described cutter head 3 can arrive is no more than the first end end face of the tubular body 63 that described circumference is closed, namely the first end end face of described cutter head 3 can exceed the second end end face of the tubular body 63 that described circumference is closed, also can be no more than.The other the same as in Example 1.
Embodiment 4
Please refer to shown in Fig. 7, in the present embodiment, one end of described governor motion 5 is flexibly connected with the described sheath 6 that protects, and the other end is flexibly connected with described connector 4.Protect the relatively described cutter head 3 of sheath 6 described in described governor motion 5 controls to move forward and backward.
Described governor motion 5 comprises pressing operation bar 51, spring 52 and drive link 53, and first end and the described connector 4 of described pressing operation bar 51 are rotationally connected, and the second end of described pressing operation bar 51 and the first end of described drive link 53 are rotationally connected.Described pressing operation bar 51 is connected with the spring 52 that described pressing operation bar 51 can be made to reset, namely the two ends of described spring 52 respectively with described pressing operation bar 51 and drive link 53 inconsistent, the second end and the described first end protecting sheath 6 of described drive link 53 are rotationally connected.Specifically, described protecting on sheath 6 and described connector 4 is respectively equipped with rotating shaft, second end of described drive link 53 and the first end of described pressing operation bar 51 are respectively equipped with and turn hole, the hole that turns on described drive link 53 second end coordinates with the described rotating shaft protected on sheath 6, and the hole that turns on described pressing operation bar 51 first end coordinates with the rotating shaft on described connector 4.It should be noted that, only describe in the present embodiment and turn hole and to coordinate with rotating shaft and the one formed is rotationally connected mode, but be not restricted to this, also can adopt other connected modes of rotating, as long as can realize rotating.
When operator presses pressing operation bar 51 downwards with hands, the axis of rotation of first end on connector 4 of described pressing operation bar 51, second end of described pressing operation bar 51 is tilted to the direction of connector 4, now, the first end of described drive link 53 rotates relative to the second end of described pressing operation bar 51, second end of described drive link 53 is around the described axis of rotation protected on sheath 6, described drive link 53 is under the effect of spring 52, the first end protecting sheath 6 described in second end control of described drive link 53 moves to the direction of cutter head 3, namely the distance of protecting sheath 6 first end and described cutter head 3 first end is shortened.The other the same as in Example 1.
Above the implementation that specific embodiments is described is intended to specific descriptions of the present invention, can not be interpreted as it is limitation of the present invention, those skilled in the art under the teachings of the present invention, can make various variant on the embodiment basis described in detail, these variants all should be included within design of the present invention.The present invention's scope required for protection only will be stated by described right and limit.
Claims (12)
1. one kind is protected the adjustable surgical knife of sheath, it is characterized in that: comprise interior cutter pipe, the cutter head be connected with described interior cutter pipe first end, be set in and protect sheath outside described cutter head, the governor motion on sheath is protected described in being connected to, and be set in the connector be connected on described interior cutter pipe and with described governor motion, protect the relatively described cutter head of sheath described in described governor motion controls and move forward and backward.
2. according to claim 1ly protect the adjustable surgical knife of sheath, it is characterized in that: described in protect the adjustable surgical knife of sheath and also comprise outer cutter pipe, described outer cutter pipe box to be located on described interior cutter pipe and to be fixed on the first end of described connector.
3. according to claim 1ly protect the adjustable surgical knife of sheath, it is characterized in that: described governor motion has pressing operation bar.
4. according to claim 3ly protect the adjustable surgical knife of sheath, it is characterized in that: described pressing operation bar is connected with the spring that described pressing operation bar can be made to reset.
5. according to Claims 2 or 3, protect the adjustable surgical knife of sheath, it is characterized in that: described in protect sheath in a tubular form, described in protect sheath first end sidewall at least there is an opening, described in protect sheath the second end be connected with described governor motion.
6. according to claim 5ly protect the adjustable surgical knife of sheath, it is characterized in that: the smooth-sided compression candles of described cutter head and protect described in being positioned at sheath first end and can relative to described in protect sheath and rotate, the first end end face of described cutter head is provided with the sword that can cut and organize.
7. according to claim 2ly protect the adjustable surgical knife of sheath, it is characterized in that: the second end of described cutter head is provided with the U-lag of notch to adduction, the first end of described U-lag and described interior cutter pipe is connected, and described cutter head is fixed on the first end of described outer cutter pipe and described cutter head has the single rotary freedom coaxial with outer cutter pipe.
8. according to claim 2ly protect the adjustable surgical knife of sheath, it is characterized in that: described in protect sheath and to be connected with described governor motion and can not external being set in outside outer cutter pipe of rotating of cutter pipe mutually.
9. according to claim 5ly protect the adjustable surgical knife of sheath, it is characterized in that: described in protect sheath and governor motion link opposite end be provided with the tubular body that circumference closes.
10. according to claim 9ly protect the adjustable surgical knife of sheath, it is characterized in that: described cutter head relatively described in protect front dead point that sheath moves forward and backward and exceed end face near described governor motion side on tubular body that described circumference closes.
11. want to protect the adjustable surgical knife of sheath described in 1 according to right, it is characterized in that: described cutter head relatively described in protect front dead point that sheath moves forward and backward be no more than described in protect the end face of sheath first end.
12. according to claim 5ly protect the adjustable surgical knife of sheath, it is characterized in that: each opening near described in protect sheath first end on be provided with at least one towards described projection of protecting the second end of sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529748.0A CN104224281B (en) | 2014-10-09 | 2014-10-09 | Protect the surgical knife that sheath is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529748.0A CN104224281B (en) | 2014-10-09 | 2014-10-09 | Protect the surgical knife that sheath is adjustable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104224281A true CN104224281A (en) | 2014-12-24 |
| CN104224281B CN104224281B (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410529748.0A Active CN104224281B (en) | 2014-10-09 | 2014-10-09 | Protect the surgical knife that sheath is adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104224281B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445918A1 (en) * | 1990-02-07 | 1991-09-11 | SMITH & NEPHEW DYONICS INC | Surgical cutting instrument |
| US5833692A (en) * | 1993-01-29 | 1998-11-10 | Smith & Nephew, Inc. | Surgical instrument |
| CN1943521A (en) * | 2006-04-29 | 2007-04-11 | 徐天松 | Foldable nasal sinuses bent cutter head |
| CN200991301Y (en) * | 2006-12-29 | 2007-12-19 | 武汉半边天医疗技术发展有限公司 | Coagulotomy self-coagulation knife |
| CN200998284Y (en) * | 2006-09-23 | 2008-01-02 | 吉林科罗纳多医疗器械有限公司 | Sweat gland surgical knife |
| CN204072244U (en) * | 2014-10-09 | 2015-01-07 | 吴雨 | Protect the surgical knife that sheath is adjustable |
-
2014
- 2014-10-09 CN CN201410529748.0A patent/CN104224281B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445918A1 (en) * | 1990-02-07 | 1991-09-11 | SMITH & NEPHEW DYONICS INC | Surgical cutting instrument |
| US5833692A (en) * | 1993-01-29 | 1998-11-10 | Smith & Nephew, Inc. | Surgical instrument |
| CN1943521A (en) * | 2006-04-29 | 2007-04-11 | 徐天松 | Foldable nasal sinuses bent cutter head |
| CN200998284Y (en) * | 2006-09-23 | 2008-01-02 | 吉林科罗纳多医疗器械有限公司 | Sweat gland surgical knife |
| CN200991301Y (en) * | 2006-12-29 | 2007-12-19 | 武汉半边天医疗技术发展有限公司 | Coagulotomy self-coagulation knife |
| CN204072244U (en) * | 2014-10-09 | 2015-01-07 | 吴雨 | Protect the surgical knife that sheath is adjustable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104224281B (en) | 2016-04-20 |
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Effective date of registration: 20160420 Address after: 401120 Chongqing advertising industrial park, No. 18 Food City Avenue, Chongqing, Yubei District Patentee after: Chongqing Maidefeikuai Technology Co., Ltd. Address before: 401120, No. 2, Jinding Road, Chongqing, 4, 19-4, Yubei District Patentee before: Wu Yu |
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Effective date of registration: 20180321 Address after: Guizhou Guizhou 563204 meters from the town of Chu City in Zunyi province Tongzi County Loushanguan high tech Industrial Development Zone 1 B building 3 floor Patentee after: Guizhou catalpoi Technology Co., Ltd. Address before: 401120 Chongqing advertising industrial park, No. 18 Food City Avenue, Chongqing, Yubei District Patentee before: Chongqing Maidefeikuai Technology Co., Ltd. |
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