CN104224280B - Surgical knife - Google Patents
Surgical knife Download PDFInfo
- Publication number
- CN104224280B CN104224280B CN201410527395.0A CN201410527395A CN104224280B CN 104224280 B CN104224280 B CN 104224280B CN 201410527395 A CN201410527395 A CN 201410527395A CN 104224280 B CN104224280 B CN 104224280B
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- China
- Prior art keywords
- cutter pipe
- outer cutter
- connector
- pipe
- external diameter
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- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003902 lesion Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000405070 Percophidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
- A61B17/3213—Surgical scalpels, knives; Accessories therefor with detachable blades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/32—Surgical cutting instruments
- A61B2017/320056—Tunnelers
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses one can oppositely insert from operating theater instruments Channel front end, be connected with driving device again, and then stretch into together with operating theater instruments passage the surgical knife that lesions position carries out tissue cutting, comprise outer cutter pipe, to be located in described outer cutter pipe and can with cutter pipe in described outer cutter pipe coaxial rotation, be connected with the first end of described interior cutter pipe and be positioned at the cutter head of the first end of described outer cutter pipe, and being fixed on the connector of described outer cutter pipe second end, the external diameter of described connector is not more than the external diameter of outer cutter pipe.The present invention not only structure is simple, and solid and reliable, production cost is low, and tip size is more suitable, and work area increases, and improves stock-removing efficiency, shortens operating time.
Description
Technical field
The present invention relates to a kind of cutter relying on external impetus to carry out tissue cutting, particularly relate to a kind of surgical knife.
Background technology
Clinically, the cutter of some surgical operations needs to rely on external impetus to carry out tissue cutting, and need to carry out tissue cutting by elongated operating theater instruments passage, this cutter generally has relative outer cutter pipe and interior cutter pipe, cutter also has relative front-end and back-end, cutter front end has the cutter head that can cut and organize, and the rear end of cutter has the connector that can be connected with driving device.The physical dimension phase tool setting pipe of common cutter connector is comparatively large, first can only be connected on the drive means by cutter, and then performed the operation by instrument channel by cutter when therefore using.Again owing to passing through instrument channel, the size of cutting tool insert must be done smaller, and cutter front end also must be straight.This with need efficient stock-removing efficiency and multi-faceted cutting direction not to be inconsistent clinically.Therefore design a kind of larger cutter that tool bit diameter can be done and there is very large realistic meaning.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of surgical knife, can realize the size of the cutter head of cutter being done larger than the diameter of instrument channel, and work area is increased, and improve stock-removing efficiency, production cost is low.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of surgical knife, comprise outer cutter pipe, to be located in described outer cutter pipe and can with cutter pipe in described outer cutter pipe coaxial rotation, be connected with the first end of described interior cutter pipe and be positioned at the cutter head of the first end of described outer cutter pipe, and being fixed on the connector of described outer cutter pipe second end, the external diameter of described connector is not more than the external diameter of described outer cutter pipe, the link of described cutter head is provided with the U-lag of notch to adduction, the first end of described interior cutter pipe is provided with union joint, described union joint and described U-lag removably connect, described cutter head is provided with annular groove, the first end of described outer cutter pipe is provided with a fixing hole, described fixing hole is corresponding with described annular groove and by steady pin, cutter head and outer cutter pipe axial restraint are had the single rotary freedom coaxial with outer cutter pipe to make described cutter head, the ring wall of described connector is provided with two grooves for reaching described connector axial location, described connector is provided with two locating slots rotating location for described connector, and described two locating slots take the shape of the letter U and the first end end of close described connector, the straight line at described two groove places is vertical with the projection of straight line on the end face of described connector at described two locating slot places.
Further, the external diameter of described connector equals the external diameter of described outer cutter pipe, and described connector and described outer cutter pipe is integrally formed makes.
Further, described two locating slots are all communicated with the first end end face of described connector, and arrange chamfering with the junction of described end face.
The present invention adopts and is connected with driving device with the connector of outer cutter pipe similar diameters, and the size of cutter head can be increased to the internal diameter being greater than instrument channel, in use, interchangeable customary operation method: cutter is connected on the drive means, and then by the operating procedure of cutter by instrument channel, first adopted by cutter the mode of anti-plug by instrument channel, then be connected with driving device; Not only structure is simple for it, and solid and reliable, production cost is low, and tip size is more suitable, and work area is increased, and improves stock-removing efficiency, shortens operating time.
Accompanying drawing explanation
Fig. 1 is the structural representation of surgical knife of the present invention.
Fig. 2 is partial sectional view of the present invention.
Fig. 3 is the structural representation of cutter head in the present invention.
Fig. 4 is the structural representation of interior cutter pipe first end in the present invention.
Fig. 5 is partial schematic diagram of the present invention.
Fig. 6 is partial schematic diagram of the present invention.
Fig. 7 is the sectional view of Fig. 6.
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.
Please refer to shown in Fig. 1, surgical knife of the present invention comprises: outer cutter pipe 1, interior cutter pipe 2, cutter head 3, connector 4 and driving device 5.
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 connected with the first end of described interior cutter pipe 2 and is positioned at the first end of described outer cutter pipe 1, described connector 4 is fixed on described outer cutter pipe 1 second end, described connector 4 is connected with described driving device 5 is dismountable, second end of described interior cutter pipe 2 is connected with described driving device 5 is dismountable, and the external diameter of described connector 4 is not more than the external diameter of outer cutter pipe 1.
Embodiment 1
Please refer to Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, described cutter head 3 is all connected with the first end of described interior cutter pipe 2 and the first end of described outer cutter pipe 1, specifically, the link of described cutter head 3 is provided with the U-lag 31 of notch 311 to adduction, similar duckbill, the first end of described interior cutter pipe 2 is provided with union joint 21, described union joint 21 is in flat rectangular-shaped, its front end is provided with clamping inclined-plane 211, described union joint 21 stretches in described U-lag 31 by fixing to the notch 311 of adduction and clamping inclined-plane 211, also detachable, so that described cutter head 3 is fixed on interior cutter pipe 2.Described cutter head 3 is provided with annular groove 32, the first end of described outer cutter pipe 1 is provided with a fixing hole 11, described fixing hole 11 is corresponding with described annular groove 32 and by steady pin 6, 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, namely described cutter head 3 and described interior cutter pipe 2 still can under the drive of driving device 5 mutually external cutter pipe 1 rotate.Connected by this mode, can be convenient to change cutter head 3, change the cutter head 3 of model or other types, and fixed by cutter head 3 and outer cutter pipe 1, it can ensure that syndeton is reliable and stable.
Please refer to shown in Fig. 6 and Fig. 7, the external diameter of described connector 4 equals the external diameter of described outer cutter pipe 1, and described connector 4 is made with described outer cutter pipe 1 is integrally formed.The ring wall of described connector 4 is provided with two grooves 41 for being connected with described driving device 5 to reach the axial location of connector 4, specifically, because described connector 4 is made with described outer cutter pipe 1 is integrally formed, described connector 4 is arranged two grooves 41, described two grooves 41 are connected by steel ball with driving device 5, limit moving axially of described outer cutter pipe 1 and described connector 4.
Described connector 4 is provided with two rotate location locating slot 42 for described connector 4, and described two locating slots 42 take the shape of the letter U and the first end end of close described connector 4, specifically, described connector 4 is connected with driving device 5 by described two locating slots 42, again because described connector 4 is made with described outer cutter pipe 1 is integrally formed, so described locating slot 42 not only limit connector 4 rotating relative to driving device 5 connecting portion with after driving device 5 clamping, also limit outer cutter pipe 1 rotating relative to driving device 5 connecting portion.It should be noted that, above-mentioned rotation only refers to the relative rotation of connector 4 and the connecting portion on driving device 5, if the connecting portion on driving device 5 can rotate relative to driving device 5 body, then described connector 4 also can rotate relative to driving device 5 body, does not limit connector herein and whether rotates relative to driving device 5 body.
Please refer to shown in Fig. 6, the straight line at described two groove 41 places is vertical with the projection of straight line on the end face of described connector 4 at described two locating slot 42 places.Namely when described two grooves 41 are separately positioned on directly over described connector 4 and immediately below time, described two locating slots 42 are separately positioned on left side and the right side of described connector 4; Described two grooves 41 have identical upright projection direction with described two locating slots 42 in other words.
Shown in Fig. 6, described two locating slots 42 are all communicated with the first end end face of described connector 4, and arrange chamfering 421 with described end face junction.The design of described chamfering 421 is mainly convenient to be connected with driving device 5.
During use, if the diameter of cutter head 3 is larger than the diameter of instrument channel, then first the first end of cutter head 3 with interior cutter pipe 2 is fixed, then the second end of interior cutter pipe 2 is inserted in outer cutter pipe 1, with steady pin 6 by cutter head 3 axial restraint outside cutter pipe 1 from the first end of outer cutter pipe 1.And then by connector 4 end insertion instrument passage on the second end of interior cutter pipe 2 and outer cutter pipe 1, i.e. anti-plug mode, then be connected with driving device 5.Finally stretch into lesions position together with instrument channel again and carry out tissue cutting.If the diameter of cutter head 3 is not more than the diameter of instrument channel, then can select usual manner or aforesaid way.The installation method of the apparatus of traditional this kind of cutter is overturned in the design of connector 4 of the present invention, by the design as required of the diameter of cutter head 3, the work area of performing the operation can be increased, improve stock-removing efficiency.
Embodiment 2
The present embodiment changes on the basis of embodiment 1, the external diameter of described connector 4 is equaled the external diameter of described outer cutter pipe 1, and described connector 4 makes with described outer cutter pipe 1 is integrally formed the external diameter that the external diameter becoming described connector 4 is slightly less than described outer cutter pipe 1, and described connector 4 is made with described outer cutter pipe 1 is integrally formed.Specifically, the external diameter of described connector 4 is more smaller than the external diameter of described outer cutter pipe, and the internal diameter of described connector 4 is greater than the external diameter of described interior cutter pipe 2, its main purpose ensures that described connector 4 can be fixed on driving device 5 by the mode insertion instrument passage of anti-plug smoothly.The other the same as in Example 1.
Embodiment 3
The present embodiment changes on the basis of embodiment 1, is all connected with the first end of described outer cutter pipe 1 with the first end of described interior cutter pipe 2 by described cutter head 3 to become described cutter head 3 and be fixedly connected with the first end of described interior cutter pipe 2.Specifically, only need to ensure that described interior cutter pipe 2 and cutter head 3 can carry out circumgyration incision work under the driving of driving device 5.The first end of described connector 4 and the second end of interior cutter pipe 2 and the annexation of driving device 5 are with embodiment 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 (3)
1. a surgical knife, it is characterized in that: comprise outer cutter pipe, to be located in described outer cutter pipe and can with cutter pipe in described outer cutter pipe coaxial rotation, be connected with the first end of described interior cutter pipe and be positioned at the cutter head of the first end of described outer cutter pipe, and being fixed on the connector of described outer cutter pipe second end, the external diameter of described connector is not more than the external diameter of described outer cutter pipe, the link of described cutter head is provided with the U-lag of notch to adduction, the first end of described interior cutter pipe is provided with union joint, described union joint and described U-lag removably connect, described cutter head is provided with annular groove, the first end of described outer cutter pipe is provided with a fixing hole, described fixing hole is corresponding with described annular groove and by steady pin, cutter head and outer cutter pipe axial restraint are had the single rotary freedom coaxial with outer cutter pipe to make described cutter head, the ring wall of described connector is provided with two grooves for reaching described connector axial location, described connector is provided with two locating slots rotating location for described connector, and described two locating slots take the shape of the letter U and the first end end of close described connector, the straight line at described two groove places is vertical with the projection of straight line on the end face of described connector at described two locating slot places.
2. surgical knife according to claim 1, is characterized in that: the external diameter of described connector equals the external diameter of described outer cutter pipe, and described connector and described outer cutter pipe is integrally formed makes.
3. surgical knife according to claim 1, is characterized in that: described two locating slots are all communicated with the first end end face of described connector, and arrange chamfering with the junction of described end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410527395.0A CN104224280B (en) | 2014-10-09 | 2014-10-09 | Surgical knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410527395.0A CN104224280B (en) | 2014-10-09 | 2014-10-09 | Surgical knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104224280A CN104224280A (en) | 2014-12-24 |
| CN104224280B true CN104224280B (en) | 2016-03-16 |
Family
ID=52213802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410527395.0A Active CN104224280B (en) | 2014-10-09 | 2014-10-09 | Surgical knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104224280B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759457A (en) * | 2020-07-27 | 2020-10-13 | 赛诺微医疗科技（浙江）有限公司 | End effector for surgical instrument |
| CN113100884A (en) * | 2021-04-08 | 2021-07-13 | 甘肃省武威肿瘤医院（武威医学科学研究院） | A cervical conization instrument capable of adjusting depth and rotational speed and using method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE411703B (en) * | 1977-11-29 | 1980-02-04 | Mo Och Domsjoe Ab | INSTRUMENTS FOR SURGICAL INTERVENTIONS IN A LED |
| US4643717A (en) * | 1985-09-16 | 1987-02-17 | Site Microsurgical Systems, Inc. | Aspiration fitting adaptor |
| CN1079024C (en) * | 1998-04-21 | 2002-02-13 | 四川省宜宾市第二人民医院 | Scalpel for intervertebral disc operation |
| CN201481510U (en) * | 2009-09-11 | 2010-05-26 | 深圳市宝安区人民医院 | Small needle knife for stenosing tenosynovitis |
| CN203195744U (en) * | 2013-04-25 | 2013-09-18 | 李慧 | Bent operation knife with edged back |
| CN203226873U (en) * | 2013-05-13 | 2013-10-09 | 成都华康利泰生物科技有限公司 | Medical surgical knife |
| CN203619598U (en) * | 2013-10-30 | 2014-06-04 | 上海导向医疗系统有限公司 | Scissor type rotary scalpel |
| CN204092118U (en) * | 2014-10-09 | 2015-01-14 | 吴雨 | Surgical knife |
-
2014
- 2014-10-09 CN CN201410527395.0A patent/CN104224280B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104224280A (en) | 2014-12-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160420 Address after: 401120 Chongqing advertising industrial park, No. 18 Food City Avenue, Chongqing, Yubei District Patentee after: CHONGQING MAIDE FEIKUAI TECHNOLOGY Co.,Ltd. Address before: 401120, No. 2, Jinding Road, Chongqing, 4, 19-4, Yubei District Patentee before: Wu Yu |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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 ZIRUI TECHNOLOGY CO.,LTD. Address before: 401120 Chongqing advertising industrial park, No. 18 Food City Avenue, Chongqing, Yubei District Patentee before: CHONGQING MAIDE FEIKUAI TECHNOLOGY Co.,Ltd. |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Yu Inventor before: Wu Yu Inventor before: Fan Weili |