CN2619591Y

CN2619591Y - Shift sleeve type self-locking safety operating knife

Info

Publication number: CN2619591Y
Application number: CN 03220343
Authority: CN
Inventors: 施国平
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-10
Filing date: 2003-03-10
Publication date: 2004-06-09
Anticipated expiration: 2013-03-10

Abstract

The utility model relates to a slide bushing type self locking safe scalpel, which comprises a knife blade(6) and a shank(7). The utility model is characterized in that the outer part of front part for the shank(7) is provided with a slide bushing type knife pouch(8), the front end of which is provided with an opening(9), and a sliding mechanism formed by matching the shank(7) with the knife pouch(8); a positioning mechanism adopts the slide bushing self locking structure and controls a lock head(2) by a pushbutton(1) on the knife pouch(8). Moreover, the positioning mechanism drives the lock head(2) to slide and shift between the position of a knife locking cut(3) and a used locking cut(4), so as to enable the knife blade(6) to take on two working status of hiding and exposing. The utility model has a simple structure and easy, convenient application, in particular a novel structured, unique and smart designed slide bushing type knife pouch. In this way, the knife blade is not only prevented from bring polluted, but also a protecting effect is generated, and thus the utility model is particularly applicable for disposable scalpel.

Description

Sleeve type self locking safety scalpel

Technical field

This utility model relates to a kind of surgery medical operating cutter, is specifically related to a kind ofly mould handle or steel handle scalpel structure with safety protection jacket.

Background technology

Scalpel uses in medical operating in a large number as the indispensable apparatus of surgery.Existing scalpel generally is made up of stainless steel blade and two ones on plastics handle of a knife, and blade is positioned at the handle of a knife front portion and is fixed on the handle of a knife, and very sharp blade is then exposed outside.In operation process, careless slightlyly when medical personnel transmit mutually can accidentally injure hand or human body, directly influence the operation process, have in addition communicate illness and jeopardize the healthy of medical personnel.On the other hand, if this scalpel uses as disposable medical instrument, because blade does not have any protective measure, still there is certain potential safety hazard in discarded back.In order to overcome above-mentioned defective, the simple type protective jacket of the similar pen cap once appearred, though this broach shell is simple in structure, the branch body structure of plug operation and broach shell and handle of a knife is made troubles to use.In addition, it is 00207198.3 that Chinese patent has been authorized a patent No. in December in 2000 bulletin on the 13rd, and name is called the utility model patent of " edge-closing blade holder ".This patent adopts member and handle of a knife combinations such as change gear, spring, V-arrangement Feng Ren, for blade has disposed the movable envelope of cover sword structure, open or seal blade by promoting change gear during use, thereby the protection medical personnel is not subjected to the injury of scalpel.This shows that although such scheme has played certain positive role to the safe handling aspect of scalpel, its deficiency is: 1, envelope sword structure more complicated; 2, use inconvenience; 3, V-arrangement envelope sword only plays a protective role to knife edge part, and the other parts of blade are still exposed outside, can pollute in addition once discard.For this reason, this utility model from safety, succinctly, angle easily, designed a kind of safe operating knife of sleeve type band self-locking structure, to overcome above-mentioned deficiency.

Summary of the invention

For achieving the above object, the technical solution adopted in the utility model is: a kind of slidingtype self locking safety scalpel, comprise blade and handle of a knife, blade is fixedly connected on the handle of a knife front portion, the anterior skin of handle of a knife is provided with a broach shell, and blade is hidden in the broach shell sheath, and the front end in the broach shell sheath is provided with opening, broach shell and handle of a knife interconnect by forward and backward slide locating mechanism, make blade present hiding, expose two kinds of duties.

Related content and change interpretation in the technique scheme are as follows:

1, in the such scheme, the sleeve type structure is adopted in cooperating between broach shell and the handle of a knife, and a slip cap structure promptly is set in the handle of a knife front portion, and the slip by this slip cap phase blade realizes protecting cutter and use.The slidingtype broach shell can adopt integral structure, also can adopt the structure of upper and lower two amalgamations.

2, in the such scheme, slide locating mechanism is constituted by slide mechanism and detent mechanism, and slide mechanism is cooperated with the broach shell inner edge by the anterior outer rim of handle of a knife and constitutes; Detent mechanism is made up of button, tapered end, knife-protecting lock port, use fore shaft and chute, wherein, chute vertically is located on the handle of a knife, and radially connect, knife-protecting lock port and use fore shaft are located at the side, front-end and back-end of chute respectively, button and tapered end are respectively the extended resilient arm structure of broach shell obverse and reverse, and the service portion of its arm end is corresponding up and down and drop in the chute, and tapered end is changed with using to slide between the fore shaft two positions by the knife-protecting lock port that acts on of button.

Described slide mechanism specifically can be made of with the convex tendon and the groove fit of the corresponding setting of broach shell inner edge the anterior outer rim of handle of a knife.

Because the technique scheme utilization, this utility model compared with prior art has following advantage:

1, it is simple in structure to adopt the broach shell structure to protect blade, and is easy to use, safe and reliable, can the better protect blade not contaminated, also can play good protective action.Especially scalpel still can play the security protection effect by the broach shell structure after discarding, and adopts this structure as safe as a house and suitable such as the disposable surgical cutter.

2, this utility model sleeve type broach shell, structural design is ingenious, and the mechanism location is reliable, slip is light and handy flexibly, is a kind of novel structure, uniqueness, gives the safety shield scalpel structure of intention, is particularly suitable for the disposable surgical cutter.

Description of drawings

Accompanying drawing 1 is the front view under the hiding blade state of this utility model, and wherein broach shell is a transparent sheath;

Accompanying drawing 2 is the vertical view of Fig. 1;

Accompanying drawing 3 is the profile of Fig. 1 at the button place;

Accompanying drawing 4 is the front view under this utility model exposed blade state, and wherein broach shell is a transparent sheath;

Accompanying drawing 5 is the vertical view of Fig. 4;

Accompanying drawing 6 is the profile at the button place of Fig. 4;

Accompanying drawing 7 is the scalpel front view behind the dismounting broach shell;

Accompanying drawing 8 is the vertical view of Fig. 7;

Accompanying drawing 9 is the rearview of Fig. 7;

Accompanying drawing 10 is this utility model slidingtype broach shell front view;

Accompanying drawing 11 is the vertical view of Figure 10;

Accompanying drawing 12 is the rearview of Figure 10;

Accompanying drawing 13 is Figure 10 left view.

In the above accompanying drawing: 1, button; 2, tapered end; 3, knife-protecting lock port; 4, use fore shaft; 5, chute; 6, blade; 7, handle of a knife; 8, broach shell; 9, opening; 10, convex tendon; 11, groove.

The specific embodiment

Below in conjunction with drawings and Examples this utility model is further described:

Embodiment: shown in accompanying drawing 1, a kind of sleeve type self locking safety scalpel is made up of blade 6, handle of a

knife

7 and 8 three members of broach shell.Blade 6 is fixedly connected on handle of a knife 7 front portions, and handle of a knife 7 is for moulding handle, and its anterior skin is provided with a broach shell 8, and this broach shell 8 is sleeved on handle of a knife 7 front portions, and blade 6 is hidden in broach shell 8 sheaths.The slidingtype broach shell can adopt integral structure, also can adopt the structure of upper and lower two amalgamations, and this example adopts the transparent slip broach shell of one injection moulding.Front end in broach shell 8 sheaths is provided with opening 9, and broach shell 8 interconnects by forward and backward slide locating mechanism with handle of a knife 7, make blade 6 present hiding, expose two kinds of duties.

Described slide locating mechanism is constituted by slide mechanism and detent mechanism, and slide mechanism is cooperated with broach shell 8 inner edges by handle of a knife 7 anterior outer rims and constitutes.For the guidance quality that guarantees that broach shell 8 slides, handle of a knife 7 anterior outer rim positive and negative longitudinally are provided with convex tendon 10, and broach shell 8 inner edge correspondences are provided with groove 11, and convex tendon 10 cooperates the formation sliding guide mechanism with groove 11.

Detent mechanism is made up of button 1, tapered end 2, knife-protecting lock port 3, use fore shaft 4 and chute 5, wherein, chute 5 vertically is located on the handle of a knife 7, and radially connect, knife-protecting lock port 3 and use fore shaft 4 are located at the side, front-end and back-end of chute 5 respectively, button 1 and tapered end 2 are respectively the extended resilient arm structure of broach shell 8 obverse and reverses, and the service portion of its arm end is corresponding up and down and drop in the chute 5, and tapered end 2 acts on knife-protecting lock port 3 by button 1 and changes with using to slide between fore shaft 4 two positions.During use, the knob down 1 that press...withes one's finger, its service portion move downward and force the tapered end 2 and the knife-protecting lock port 3 of front end to take off mouth, at this moment, pull back button 1, broach shell 8 slides backward and arrives use fore shaft 4 positions, bleed off button 1, tapered end 2 is automatically locked at and uses on fore shaft 4 positions.At this moment, blade 6 stretches out from broach shell 8 front openings 9, and is in the state of exposing.After the use, press the button 1, its service portion moves downward and forces tapered end 2 to take off mouth with using fore shaft 4, and at this moment, button push 1 forward, and broach shell 8 is to front slide and arrive knife-protecting lock port 3 positions, bleeds off button 1, and tapered end 2 is automatically locked on knife-protecting lock port 3 positions.At this moment, blade 6 is hidden in the sheath of broach shell 8, is in the protection state.Broach shell 8 is in the process of slidably reciprocating, and button 1 and tapered end 2 slide in chute 5, and tapered end 2 is interactional by the bulge-structure of both sides and chute 5 front and back ends both sides set knife-protecting lock port 3 and use fore shaft 4.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to this utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of sleeve type self locking safety scalpel, comprise blade [6] and handle of a knife [7], blade [6] is fixedly connected on handle of a knife [7] front portion, it is characterized in that: the anterior skin of handle of a knife [7] is provided with a broach shell [8], blade [6] is hidden in broach shell [8] sheath, front end in broach shell [8] sheath is provided with opening [9], and broach shell [8] interconnects by forward and backward slide locating mechanism with handle of a knife [7], make blade [6] present hiding, expose two kinds of duties.

2, sleeve type self locking safety scalpel according to claim 1, it is characterized in that: described slide locating mechanism is constituted by slide mechanism and detent mechanism, and slide mechanism cooperates formation by the anterior outer rim of handle of a knife [7] with broach shell [8] inner edge; Detent mechanism is made up of button [1], tapered end [2], knife-protecting lock port [3], use fore shaft [4] and chute [5], wherein, chute [5] vertically is located on the handle of a knife [7], and radially connect, knife-protecting lock port [3] and use fore shaft [4] are located at the side, front-end and back-end of chute [5] respectively, button [1] and tapered end [2] are respectively the extended resilient arm structure of broach shell [8] obverse and reverse, the service portion of its arm end is corresponding up and down and drop in the chute [5], and tapered end [2] is changed with using between fore shaft [4] two positions slip by the knife-protecting lock port [3] that acts on of button [1].

3, sleeve type self locking safety scalpel according to claim 2 is characterized in that: described slide mechanism cooperates formation with the convex tendon [10] of the corresponding setting of broach shell [8] inner edge with groove [11] by the anterior outer rim of handle of a knife [7].