CN201029914Y

CN201029914Y - Sheath of surgical knife blade

Info

Publication number: CN201029914Y
Application number: CNU2007200669270U
Authority: CN
Inventors: 鲁祎民
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-01
Filing date: 2007-02-01
Publication date: 2008-03-05
Anticipated expiration: 2017-02-01

Abstract

Disclosed is a sheath of operating blade comprising a vertical groove, a horizontal groove, a blade layer, a front striking flake, a rear striking flake and the two striking flakes are respectively equipped with a convex body of striking flake, and the sheath can wrap and fix the operating blade which is disposed inside the sheath, loading on or unloading off an adaptive handle, thereby effectively avoiding the unexpected hurting and infection caused by that operators contact with the operating blade directly. The utility model is characterized in that the thick wall of the front portion of the sheath is arranged with a fixing plug and a special form depression for attaching product mark, an elastic button on the rear portion of the sheath is a controllable lock locating device of the sheath on the handle, and all portions improve security and reliability of the utility model at operating time. Besides that a connecting bar on the rear striking flake can break after the first using and achieve disposable utilization effect of the sheath, the septal length inside the sheath can be adjusted to enable cutting edge of the blade inside the sheath to be free and suspended, and thereby protecting the tartness of the blade inside the sheath and improving practicability and quality of the whole product.

Description

The sheath of knife blade

Technical field:

This utility model relates to a kind of sheath of knife blade, refer to especially a kind ofly wrap up, fix knife blade in it, and loading, unloading has the sheath of the knife blade of disposable use, function of safety protection on suitable handle of a knife together.

Background technology:

Sharp-pointed medical equipment causes the infection of blood-borne pathogens day by day to be subjected to paying attention to widely to medical personnel's damage, and the medical apparatus and instruments of innovation, development safety just becomes at present each big medical product manufacturer's research and development target in the world.Scalpel and blade have also caused the concern of each side to this product safety performance because of its higher accidental cuts rate in operation process, various types of safety scalpels have also appearred on the market, in these safety scalpels, can meet the clinical practice requirement, rational production is arranged again simultaneously, the deisgn product of use cost should still belong to the rustless steel handle of a knife and be equipped with this class of safety scalpel sheet, as CN00809581.7 (PCT/AU00166) " surgical knife of band retractable guard ", U.S. Pat 20050203555 " safety scalpel ", and we are than a patent CN03811740.1 early; Because of these deisgn products have all been kept the good operating characteristic of original scalpel, medical personnel's feel requirement has farthest reduced the inconvenience that brings to the operator because of products innovation when reaching operation; This class blade is positioned at sheath, can be with the structural design of sheath loading, unloading on handle of a knife, except that the blade holder of the knife blade that can adopt former each specification and similar weight, model, sheath by blade can assemble before art, use in the art and postoperative is isolated staff when collecting and contacted with the direct of blade, effectively prevent scalpel and blade accidental cuts in use, reached not only practical but also safe innovation purpose; But no matter at CN00809581.7; still all also exist the some shortcomings part on the blade sheath in our CN03811740.1 patent design; as guaranteeing disposable use with the sheath knife blade; there are not the sheath of controllable type and the mechanism of handle of a knife snap close positioner and protection sheath inner blade sharpness etc., so be necessary the knife blade sheath among we the above-mentioned patent CN03811740.1 is done further improvement.

Summary of the invention:

The object of the present invention is to provide the sheath of the knife blade after a kind of improvement, the blade in it is wrapped up, fixes in this sheath decapacitation, loading, unloading are on suitable handle of a knife together, reach outside the effect of safe handling, safety, reliability and disposable performance in the time of also can improving its use by the innovation structure on the sheath.

For reaching above-mentioned purpose and solving above-described technical problem, the blade layer that mutual intersection, the open longitudinal and transverse chute that connects in front and back is arranged in the sheath of this utility model knife blade and communicate with the sideslip groove, this blade layer front end opening, back-end closure, blade layer afterbody bottom surface have top incline; The forward and backward shell fragment that on sheath, is provided with, but reach in their shell fragment convex body fixed blade blade layers in sheath separately, and its main innovative characteristics is: there is the depression of specific form at the anterior wall thickness of sheath place, is used for fixing mouthful plug and is installed with the product sign; It is sheath controllable type snap close positioner on handle of a knife that the elasticity that the sheath rear portion is set up is buckled; Have additional connection strap between the back shell fragment of sheath and jacket wall, can guarantee the disposable use of sheath; In regulating in the sheath every length make the blade of front blade free, hang, the sharpness of protection sheath inner blade.

Being explained as follows of related content and variation in the technique scheme:

The specific form of the anterior wall thickness of sheath place depression can be complementary with the form of incidental mouthful of plug of desire stiff end, set up mouthful plug can making sheath whenever necessary, prevent that the blade in the sheath from popping in the moment of fit on handle of a knife head, stabbing other people, improve entire product security performance in use, in addition, the form of this recess also is fit to be installed with the sign of product; Having additional elasticity at the rear portion of sheath buckles, this elasticity button is made up of elastic strip and projection, dash forward on the sidewall of elastic strip or in having, when sheath carries the suitable handle of a knife of blade fit on, the elasticity at sheath rear portion buckle can be by elastic strip elastic force with projection spring into stop on the handle of a knife recessed in, make sheath be locked in a certain position on the handle of a knife, only when pushing elastic strip once more, the stop that projection just can break away from the handle of a knife is recessed, sheath just can move on handle of a knife, wrap up reliably or appear blade, form the anchor switch operator scheme of controllable type, and the interior prominent and inconsistent overvoltage that limits elastic strip of toolholder body on the elastic strip, this elasticity button can be located whole sheath securely on handle of a knife, reliability when having increased the entire product safety operation; Have additional connection strap between back shell fragment on the sheath and jacket wall, this connection strap can be when the sheath inner blade fit on handle of a knife head first by regulating its length and width or thickness, the back shell fragment is caused its fracture by handle of a knife head jack-up, cause the miopragia of back shell fragment tractive blade, can't pass through this sheath once more, reach disposable effect the suitable handle of a knife of blade fit in it; For fixing operation blade in the blade layer in sheath effectively, and reduce contacting of each wall of blade layer and blade, can suitably be regulated every length in this sheath, can make the blade of its inner blade free, hang, contactless with each inwall, the sharpness of protection blade improves main application function and the quality of product; On the outer wall of sheath, can have and strengthen the structure that grips friction; The back wall of this sheath can partly open, partially enclosed, make this sheath be met the requirement on the reasonable production cost by batch making.

By the improvement of technique scheme, the sheath of this utility model knife blade is except that having original safe, practical function, and more original technology has following advantage:

1, the reliability of product operation, safety further improve, and the design structure that the elasticity on the sheath is buckled and antetheca can attach mouthful plug has guaranteed this sheath reliable, security performance in use.

2, when guaranteeing disposable result of use, also can further protect the sharpness of blade, improved the practicality and the quality of entire product.

3, the reasonable improvement of project organization further reduces production, use cost.

Description of drawings:

Fig. 1 is the sheath perspective view of this utility model knife blade

Fig. 2 looks perspective view every the back of the body of the knife blade sheath of length for this utility model in regulating

Fig. 3 is the knife blade sheath of Fig. 2 and the perspective view after the blade assembling

The specific embodiment:

See also shown in Fig. 1,2 the blade layer 3 that mutual intersection, the open vertical runner 1 that connects in front and back, sideslip groove 2 is arranged in the sheath of this utility model knife blade and communicate with sideslip groove 2; The front end of blade layer 3 is open, back-end closure, and the afterbody bottom surface has top incline; Preceding shell fragment 4 by being provided with on the sheath, back shell fragment 5 and their shell fragment convex bodys 41,51 separately thereof can be installed with blade in the blade layer 3 in sheath; The anterior wall thickness of sheath place is the depression 6 of specific form, its depression form can be complementary with the form of incidental mouthful of plug of desire stiff end, can set up a mouthful plug to sheath whenever necessary, blade in the pre-protective jacket pops when fit on handle of a knife head, stabs other people, improve entire product security performance in use, in addition, the form of this depression 6 also is fit to be installed with the sign of product; Flexiblely at the rear portion of this sheath buckle 7, elasticity button 7 is made up of elastic strip 71 and projection 72, dash forward 73 on the sidewall of elastic strip 71 or in having, after this sheath carries the suitable handle of a knife of its inner blade fit on, the elastic force that elasticity button 7 relies on elastic strips 71 with projection 72 spring into stop on the handle of a knife recessed in, this makes whole sheath be locked in a certain position on the handle of a knife securely, only the stop that projection 72 just can break away from the handle of a knife when pushing this elastic strip 71 once more is recessed, sheath just can move on handle of a knife, form the anchor switch operator scheme of controllable type, wrap up or appear the blade lengths of necessary requirement reliably, and interior prominent 73 on elastic strip 71 sidewalls can be inconsistent with toolholder body, the overvoltage of restriction elastic strip 71, this elasticity button 7 makes the whole sheath can be by the switching regulator Ground fastener, be fixed on the desired location on the handle of a knife, the reliability when having increased the entire product safety operation; Between back shell fragment 5 on the sheath and jacket wall connection strap 52 is arranged, length and width or thickness by adjusting connection strap 52 are the bonding strength of connection strap 52, can reach when sheath inner blade fit on handle of a knife head first, back shell fragment 5 is by the effect of handle of a knife head jack-up, connection strap 52 fractures, finally cause the blade of back shell fragment 5 in can not the tractive sheath, can't pass through this sheath again, reach disposable purpose the suitable handle of a knife of blade fit in it; Every 8 sheath inside is divided into vertical runner 1, sideslip groove 2 and blade layer 3 in the sheath, length every 8 in the adjusting can make the blade that is installed with at blade layer 3 inner blade dissociate, hang, with each inwall of blade layer 3 contactless (as shown in Figure 3), there is an intact protection at the blade position of required employing during to operation technique, keeps its sharpness, improves the main application function and the quality of entire product; On the outer wall of sheath, can have and strengthen the structure 9 that grips friction; The back wall of this sheath can partly be opened, and is partially enclosed, makes it be convenient to batch making production, meets the requirement of reasonable production cost.

Above-mentioned is the structural design and the operating principle of the sheath of this utility model knife blade, and all similar products that design with design of the present utility model, principle ought to belong to the scope of this utility model protection.

Claims

1. the sheath of a knife blade, in the blade layer that mutual intersection, the open longitudinal and transverse chute that connects in front and back arranged and communicate with the sideslip groove; This blade layer front end is open, back-end closure, and the afterbody bottom surface has top incline; Forward and backward shell fragment and their shell fragment convex bodys separately thereof by being provided with on the sheath can be installed with blade in the blade layer in sheath; It is characterized in that: the anterior wall thickness of sheath place depression, the sheath rear portion is flexible buckles, and between back shell fragment and jacket wall connection strap is arranged, regulate in the sheath in every length can make and be installed with, suspension free at the blade of blade layer inner blade.

2. the sheath of knife blade according to claim 1 is characterized in that: outside form that the anterior wall thickness of described sheath place depression, its depression form decapacitation and incidental mouthful of desire are filled in stiff end is complementary, also be fit to be installed with the sign of product.

3. the sheath of knife blade according to claim 1, it is characterized in that: described sheath rear elastic is buckled, and is made up of elastic strip and projection, on the sidewall of elastic strip or prominent in having.

4. the sheath of knife blade according to claim 1 is characterized in that: described sheath, the structure that can have the enhancing gripping to rub on its outer wall.

5. the sheath of knife blade according to claim 1 is characterized in that: described sheath, its back wall can partly open, partially enclosed.