CN205041500U - Scalpel safety self -locking mechanism - Google Patents
Scalpel safety self -locking mechanism Download PDFInfo
- Publication number
- CN205041500U CN205041500U CN201520626225.8U CN201520626225U CN205041500U CN 205041500 U CN205041500 U CN 205041500U CN 201520626225 U CN201520626225 U CN 201520626225U CN 205041500 U CN205041500 U CN 205041500U
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- China
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- broach shell
- sliding seat
- flexure strip
- upside
- spacing
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Abstract
The utility model discloses a scalpel safety self -locking mechanism in the medical instrument field, including the broach shell, be equipped with in the broach shell be used for installing the blade and can around gliding sliding seat, it is connected to adopt identical dogtooth to cooperate with the tooth's socket between the interior upside of sliding seat and broach shell, the tooth's socket distributes along broach shell length direction has a plurality of, is connected with the drive handle on the sliding seat, and the drive handle stretches out from the broach shell upside, the tail end of sliding seat is equipped with the flexure strip, and the flexure strip upside is equipped with the spacing groove, and the interior upper portion of broach shell is equipped with spacing arch, spacing arch is right angled triangle and sets up, upper portion in the broach shell is connected towards broach shell rear side, another right -angle side to right angled triangle's a right -angle side, when the sliding seat move to backward make spacing arch and spacing groove just to the time, limiting groove is gone into to spacing lucky protruding card. The utility model discloses simple structure, it is convenient to use the back lock to die, only limits disposable, uses safelyr.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly the disposable scalpel of one.
Background technology
In Chinese patent database, disclose a kind of disposable safe scalpel, its application number: 201410228377.2; The applying date: 2014-05-27; Publication number: 103976776A; Publication date: 2014-08-13, this disposable safe scalpel is made up of blade, handle of a knife and broach shell, when the relative handle of a knife slide anteroposterior of broach shell and when locating, blade presents and stretches out and retraction two states from broach shell, first locking port is set in the knife-protecting lock port front of handle of a knife reverse side, between knife-protecting lock port and the first locking port, carries out transition by inclined-plane or arc surface; In the front of handle of a knife front through slot, the second locking port and stopper are set.Under button is in pressed state, during driven forward broach shell, due to ram tackle by stopper cannot make to ram from through slot front end and slide onto the second locking port, effectively prevent scalpel and not yet use the situation being just pushed into locking state.In addition, can not there is the phenomenon of slippage in state stuck while of front-back two-sided, thus ensure that the stability of locking state well because of the excesssive gap between broach shell and handle of a knife and distortion.Its weak point is: 1, its protective sleeve is in the process of sliding, and button point has the possibility of fracture, and is exposed to outside, very easily produces malpractice.2, the use length of blade cannot regulate and control, and is that medical personnel in use cannot according to the length of patient trauma's size adjustment blade.3, medical personnel are in the process of performing an operation, and as the time one is long, people is very easily tired, very easily slides when using scalpel.4, blade allows patient intuitively see, can from producing the possibility feared at heart.5, there is the possibility of maloperation, if maloperation enters locking position in operation, by the process of impact operation, incur loss through delay the therapeutic time of patient.
Utility model content
The purpose of this utility model is to provide a kind of surgical knife safety self-locking mechanism, makes it reliably locked, use safety, easy to operate.
The purpose of this utility model is achieved in that a kind of surgical knife safety self-locking mechanism, comprises broach shell, is provided with for installing blade and can the sliding seat of slide anteroposterior in described broach shell; Adopt the double wedge matched and tooth socket fit to be connected between sliding seat and the interior upside of broach shell, described teeth groove is distributed with several along broach shell length direction, and sliding seat is connected with driving handle, and driving handle stretches out on the upside of broach shell; The tail end of sliding seat is provided with flexure strip, be provided with stopper slot on the upside of flexure strip, the internal upper part of broach shell is provided with spacing preiection, and the rectangular triangle of described spacing preiection is arranged, a right-angle side of described right angled triangle is on rear side of broach shell, and another right-angle side is connected to broach shell internal upper part; When sliding seat move rearwards to make spacing preiection and stopper slot just pair time, described spacing lucky projection snaps in stopper slot.
When this utility model normally uses, sliding seat can slide anteroposterior, double wedge is connected with tooth socket fit, make the extension elongation of blade adjustable, during adjustment, promote double wedge by driving handle cross place teeth groove and be meshed with other corresponding teeth groove, one hand can adjust the length that blade stretches out at any time, and it is easy to operate.After having performed the operation, by pressing down driving handle and pushing backward, when sliding seat moves rearwards to certain position, spacing preiection drives flexure strip elastic deformation, when sliding seat move rearwards to make spacing preiection and stopper slot just pair time, described spacing lucky projection snaps in stopper slot.Now, cannot blade be driven to stretch out by driving handle again, scalpel cannot reuse, and reaches disposable object, avoids cross infection.Compared with prior art, this utility model structure is simple, uses rear locked convenience, only for single use, uses safer.
As further improvement of the utility model, the tail end of described flexure strip be provided with upwards show a projection, when sliding seat moves backward, show that a projection can touch spacing preiection just.Show that a projection can play reminding effect, remind operator to continue firmly to push driving handle backward, sliding shoe will be made locked, to avoid maloperation.
For ensure show that a projection reaches reminding effect by lower resistance, described in show that the local thickness of the flexure strip that a projection is corresponding is less than the thickness of other positions of flexure strip.Because thickness is little, this position of flexure strip is easily deformable, can provide one compared with the reminding effect of slight drag to operator.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Wherein, 1 broach shell, 2 sliding seats, 3 teeth groove, 4 driving handles, 5 double wedges, 6 spacing preiections, 7 stopper slots, 8 show a projection, 9 flexure strips, 10 blades.
Detailed description of the invention
As shown in Figure 1, being a kind of surgical knife safety self-locking mechanism, comprising broach shell 1, being provided with for installing blade 10 and can the sliding seat 2 of slide anteroposterior in described broach shell 1; Adopt the double wedge 5 that matches and teeth groove 3 to be connected between sliding seat 2 and the interior upside of broach shell 1, described teeth groove 3 is distributed with several along broach shell 1 length direction, sliding seat 2 is connected with driving handle 4, and driving handle 4 stretches out on the upside of broach shell 1; The tail end of sliding seat 2 is provided with flexure strip 9, be provided with stopper slot 7 on the upside of flexure strip 9, the internal upper part of broach shell 1 is provided with spacing preiection 6, and described spacing preiection 6 at right angles triangle is arranged, a right-angle side of right angled triangle is on rear side of broach shell 1, and another right-angle side is connected to broach shell 1 internal upper part; When sliding seat 2 move rearwards to make spacing preiection 6 and stopper slot 7 just pair time, described spacing lucky projection snaps in stopper slot 7.The tail end of flexure strip 9 be provided with upwards show a projection 8, when sliding seat 2 moves backward, show that a projection 8 can touch spacing preiection 6 just, show that the local thickness of the flexure strip 9 of a projection 8 correspondence is less than the thickness of other positions of flexure strip 9.
When performing the operation, sliding seat 2 can slide anteroposterior, double wedge 5 and teeth groove 3 are connected, make the extension elongation of blade 10 adjustable, during adjustment, promote double wedge 5 by driving handle 4 cross place teeth groove 3 and be meshed with other corresponding teeth groove 3, one hand can adjust the length that blade 10 stretches out at any time, and it is easy to operate.After having performed the operation, by pressing down driving handle 4 and pushing backward, when sliding seat 2 drives flexure strip 9 to move backward, first spacing preiection 6 touches and shows a projection 8, operator is reminded whether to determine scalpel is locked, as without the need to locked, then can push forward driving handle 4, as needs are locked, then continue to push driving handle 4 backward, the hypotenuse of right angled triangle play the guiding role, and spacing preiection 6 drives flexure strip 9 elastic deformation, when sliding seat 2 move rearwards to make spacing preiection 6 and stopper slot 7 just pair time, described spacing lucky projection snaps in stopper slot 7.Now, cannot blade 10 be driven to stretch out by driving handle 4 again, scalpel cannot reuse, and reaches disposable object, avoids cross infection.
This utility model is not limited to above-described embodiment; on the basis of technical scheme disclosed in this utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all in protection domain of the present utility model.
Claims (3)
1. a surgical knife safety self-locking mechanism, comprises broach shell, is provided with for installing blade and can the sliding seat of slide anteroposterior in described broach shell; It is characterized in that: adopt the double wedge matched and tooth socket fit to be connected between sliding seat and the interior upside of broach shell, described teeth groove is distributed with several along broach shell length direction, and sliding seat is connected with driving handle, and driving handle stretches out on the upside of broach shell; The tail end of sliding seat is provided with flexure strip, be provided with stopper slot on the upside of flexure strip, the internal upper part of broach shell is provided with spacing preiection, and the rectangular triangle of described spacing preiection is arranged, a right-angle side of described right angled triangle is on rear side of broach shell, and another right-angle side is connected to broach shell internal upper part; When sliding seat move rearwards to make spacing preiection and stopper slot just pair time, described spacing lucky projection snaps in stopper slot.
2. surgical knife safety self-locking mechanism according to claim 1, is characterized in that: the tail end of described flexure strip be provided with upwards show a projection, when sliding seat moves backward, show that a projection can touch spacing preiection just.
3. surgical knife safety self-locking mechanism according to claim 2, is characterized in that: described in show that the local thickness of the flexure strip that a projection is corresponding is less than the thickness of other positions of flexure strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626225.8U CN205041500U (en) | 2015-08-19 | 2015-08-19 | Scalpel safety self -locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626225.8U CN205041500U (en) | 2015-08-19 | 2015-08-19 | Scalpel safety self -locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205041500U true CN205041500U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520626225.8U Active CN205041500U (en) | 2015-08-19 | 2015-08-19 | Scalpel safety self -locking mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN205041500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171896A (en) * | 2018-08-10 | 2019-01-11 | 王祥圈 | A kind of scalpel |
| CN112245107A (en) * | 2020-10-20 | 2021-01-22 | 温州医科大学 | Surgical knife |
-
2015
- 2015-08-19 CN CN201520626225.8U patent/CN205041500U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171896A (en) * | 2018-08-10 | 2019-01-11 | 王祥圈 | A kind of scalpel |
| CN109171896B (en) * | 2018-08-10 | 2020-07-21 | 韦联星 | Surgical knife |
| CN112245107A (en) * | 2020-10-20 | 2021-01-22 | 温州医科大学 | Surgical knife |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |