CN211757017U

CN211757017U - Cutter for cleaning surface of endoscope

Info

Publication number: CN211757017U
Application number: CN201922191073.4U
Authority: CN
Inventors: 孟建昇; 陈垚鑫
Original assignee: Dododo Medical Equipment Service Co ltd
Current assignee: Dododo Medical Equipment Service Co ltd
Priority date: 2019-12-07
Filing date: 2019-12-07
Publication date: 2020-10-27
Anticipated expiration: 2029-12-07

Abstract

The utility model discloses a cutter for cleaning the surface of an endoscope, which comprises a bottom supporting plate, a hanging mechanism, an extension mechanism, a stable guide mechanism and a dust and dirt collecting mechanism, wherein the bottom supporting plate is a stainless steel bottom supporting plate, the hanging mechanism is arranged at the upper end of the bottom supporting plate, the upper end of the hanging mechanism is matched with a cutter plastic shell, the front part of the cutter plastic shell is provided with a knife outlet, the extension mechanism is arranged at the inner rear end of the cutter plastic shell, the blade for cleaning the surface of the endoscope is simple in operation, the extrusion and the retraction of the cutter can be quickly realized, the safety when the endoscope is used or not used is ensured, the scraped dirt can be collected at a proper position, the occurrence of the situation that the dust and dirt fall off arbitrarily is avoided, the auxiliary cleaning observation is provided, the cleaning thoroughness is ensured, the retracted blade can be effectively cleaned, the cleanness of the cutter is ensured, and the integral stable, the cutter is prevented from directly contacting the tabletop, and the cleanness is ensured by hanging in the air.

Description

Cutter for cleaning surface of endoscope

Technical Field

The utility model relates to the technical field of medical instrument maintenance, in particular to a cutter for cleaning the surface of an endoscope.

Background

After the surface of the endoscope lens is used for many times, the endoscope lens has thick and dirty substances which need to be scraped off by hard objects, and a cutter is generally adopted for scraping off, so that the endoscope lens has the following technical effects: the safety of the cleaning tool cannot be guaranteed when the cleaning tool is used or not used, scraped dirt cannot be collected at a proper position, the situation that dust, dirt and dirt fall randomly cannot be avoided, auxiliary cleaning observation cannot be provided, the cleaning thoroughness cannot be mentioned, the retracted blade cannot be effectively cleaned, integral stable hanging support is not provided, the direct contact of the tool with a desktop cannot be avoided, and the cleanness of the tool is poor, so that the realization of the tool for cleaning the surface of the endoscope, which can solve the problems, is imperative.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a cutter that endoscope surface cleaning used, easy operation can realize fast that the cutter extrudes and withdraws, the security when guaranteeing to use or not using, the dirt of scraping can be collected with suitable position, provides supplementary clean observation, guarantees clear thoroughness, avoids cutter direct contact desktop, unsettled assurance is clean, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a cutter for cleaning the surface of an endoscope comprises a bottom supporting plate, a hanging mechanism, an extending mechanism, a stabilizing guide mechanism and an ash and scale collecting mechanism, wherein the bottom supporting plate is a stainless steel bottom supporting plate, the hanging mechanism is arranged at the upper end of the bottom supporting plate, a cutter plastic shell is installed at the upper end of the hanging mechanism in a matched mode, a cutter outlet is formed in the front portion of the cutter plastic shell, the extending mechanism is arranged at the rear end of the inner portion of the cutter plastic shell, a blade is arranged at the front end of the extending mechanism and is an arc-shaped blade and is respectively matched with the cutter plastic shell and the cutter outlet, the stabilizing guide mechanism is symmetrically arranged on the two sides of the upper inner wall and the lower inner wall of the cutter plastic shell and is matched with the inner wall of the cutter plastic shell, the ash and scale collecting mechanism is arranged at the front end of the outer surface of the cutter plastic shell in a matched mode, the cutter further comprises a control switch, an electric box, the battery cooperation sets up in the inside of electronic box, the battery is connected to the control switch electricity, and is simple in operation, can realize fast that the cutter extrudees and withdraws, guarantee the security when using or not using, the ash scale is clean thorough, the dirt of scraping can be collected with suitable position, avoid the emergence of the indiscriminate condition that falls wantonly of ash scale dirt, provide supplementary clean observation, guarantee clear thoroughness, can effectively clean the blade of withdrawing, guarantee the cleanness of cutter, provide holistic stable suspended support, avoid cutter direct contact desktop, unsettled assurance is clean.

Further, hang the mechanism and include the riser, hang frame and sucking disc, the riser sets up in the upper end center of end fagging, and hang the frame and set up in the left side upper end of riser, and the middle part opening of hanging the frame is worn into to the front end of cutter plastic shell, and the link plate of cutter plastic shell both sides is installed with the mouthful cooperation of hanging that the frame upper end corresponds, and the bottom four corners symmetry of end fagging is equipped with the mounting groove, and the sucking disc cooperation sets up in the end mounting groove of end fagging bottom that corresponds, provides holistic hanging support, guarantees the cleanliness factor.

Further, the extension mechanism includes propelling movement piece, return spring, flexible piece and stripper plate, propelling movement piece symmetry sets up in the upper and lower inner wall rear end of cutter plastic casing, and return spring sets up in the inside back wall of cutter plastic casing, and is located between two propelling movement pieces, the rear end of flexible piece and the front end fixed connection who returns the spring, flexible piece and propelling movement piece cooperation setting, the front end of flexible piece and the rear end fixed connection of blade, the stripper plate symmetry sets up downside on the surface rear end of cutter plastic casing, realizes that the cutter uses quick extrusion, unclamps when not using and withdraws, guarantee safety.

Further, firm guiding mechanism includes direction slider and direction spout, the direction slider symmetry sets up in the upper and lower both sides rear end of blade, and the direction spout symmetry sets up on the upper and lower inner wall of cutter plastic casing, and the direction slider plays the stable direction of cutter extrusion and retrieving in-process with the direction spout sliding connection that corresponds.

Further, the mechanism is collected to ash scale includes L shaped plate, adjusting screw, grillage, dust collecting tank, slider and spout, the cooperation of L shaped plate sets up in the outer surface front end of cutter plastic casing, and the vertical plate body threaded connection of adjusting screw and L shaped plate, adjusting screw's front end pass through the bearing and are connected with the rear side rotation of grillage, the extrados of dust collecting tank and the front end fixed connection of grillage, and the slider of dust collecting tank lower extreme is sliding connection in the spout of the horizontal plate body of L shaped plate, is convenient for collect the ash scale of scraping off with suitable position.

Further, still include first gooseneck, magnifying glass, second gooseneck and light, first gooseneck sets up in the surface upper end of cutter plastic casing, and the magnifying glass sets up in the top of first gooseneck, and the second gooseneck sets up in the surface left side of cutter plastic casing, and the light sets up in the top of second gooseneck, and light electricity connection control switch provides supplementary cleanness, guarantees clear thoroughness.

Furthermore, the novel knife is characterized by further comprising bristles, wherein the bristles are arranged at the edge of the front side wall of the knife outlet in a matched mode and are in contact with the outer surface of the blade, and the scraping cleaning when the knife is retracted is achieved.

Compared with the prior art, the beneficial effects of the utility model are that: the blade for cleaning the surface of the endoscope has the following advantages:

1. the stripper plate that corresponds is held between the fingers respectively to operating personnel thumb and forefinger, the stripper plate is pressed to power, the appropriate amount of deformation of cutter plastic casing rear side, thereby flexible piece slides antedisplacement in the front end of propelling movement piece, and then release the blade through a sword mouth, at the extrusion in-process of blade, because direction slider and the direction spout sliding connection that corresponds, realize the extrusion direction and the stability of blade, after finishing using, it is clean with the blade tool bit through clean brush, later thumb and forefinger relieve the pressure to the stripper plate, under the effect of return spring, flexible piece withdraws, thereby withdraw the blade through a sword mouth, guarantee the security when using or not using.

2. Rotating adjusting screw, because adjusting screw and the vertical plate body threaded connection of L shaped plate, adjusting screw's front end passes through the rear side rotation connection of bearing and grillage, and the slider of dust collection tank lower extreme sliding connection in the spout of the horizontal plate body of L shaped plate pushes away dust collection tank to the blade bottom under, and the dirt of scraping drops in the dust collection tank, avoids the emergence of the ash and dirt condition of falling in disorder wantonly.

3. Through control switch regulation and control, open the light, swing second gooseneck to the best illumination angle of light, swing first gooseneck to the biggest observation angle of magnifying glass, scrape the dirt of clean camera lens surface adhesion through the blade of arc mechanism, guarantee clear thoroughness, provide supplementary clean observation, guarantee clear thoroughness, at the pull-back in-process of blade, the brush hair is scraped the surface of blade, and then brushes the adnexed grime of surface, avoid the grime to follow the blade and fall into inside the cutter plastic casing, effectively clean the blade of withdrawing, guarantee the clean of cutter.

4. After the cleaning and using are finished, the front end of the cutter plastic shell penetrates into the middle opening of the suspension frame, the hanging plates on two sides of the cutter plastic shell are installed in a matching mode with the hanging openings corresponding to the upper end of the suspension frame, the suckers adsorb the placing surfaces, and under the supporting action of the bottom supporting plate, the vertical plate and the suspension frame, the cutter plastic shell and the whole body are stably suspended, so that the cutter is prevented from contacting a desktop, and the cutter plastic shell is suspended and kept clean.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the plastic housing of the cutting tool of the present invention;

fig. 3 is the schematic view of the internal sectional structure of the plastic shell of the cutting tool of the present invention.

In the figure: 1 bottom supporting plate, 2 suspension mechanism, 21 vertical plate, 22 suspension frame, 23 suction cup, 3 cutter plastic shell, 4 knife-out edges, 5 extending mechanism, 51 pushing block, 52 return spring, 53 telescopic block, 54 extruding plate, 6 blades, 7 stabilizing guide mechanism, 71 guide sliding block, 72 guide sliding groove, 8 dirt collecting mechanism, 81L shaped plate, 82 adjusting screw, 83 plate frame, 84 dust collecting groove, 85 sliding block, 86 sliding groove, 9 control switch, 10 electric box, 11 storage battery, 12 first gooseneck, 13 magnifier, 14 brush hair, 15 second gooseneck, 16 lighting lamp, and hanging plate 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions:

the first embodiment is as follows: a cutter for cleaning the surface of an endoscope comprises a bottom supporting plate 1, a hanging mechanism 2, an extending mechanism 5, a stabilizing guide mechanism 7 and a dust and dirt collecting mechanism 8, wherein the bottom supporting plate 1 is a stainless steel bottom supporting plate, the bottom supporting plate 1 provides bottom support, the hanging mechanism 2 is arranged at the upper end of the bottom supporting plate 1, a cutter plastic shell 3 is arranged at the upper end of the hanging mechanism 2 in a matched mode, the cutter plastic shell 3 provides a placing space for the cutter and an internal mechanism, a cutter outlet 4 is arranged at the front portion of the cutter plastic shell 3, the cutter outlet 4 achieves extending and retracting of the cutter, the extending mechanism 5 is arranged at the rear internal end of the cutter plastic shell 3, a blade 6 is arranged at the front end of the extending mechanism 5, the blade 6 is an arc-shaped blade and is respectively matched with the cutter plastic shell 3 and the cutter outlet 4, the stabilizing guide mechanism 7 is symmetrically arranged on two sides of the upper inner wall and the lower inner wall of the cutter plastic shell 3 and is, the dust and scale collecting mechanism 8 is arranged at the front end of the outer surface of the cutter plastic shell 3 in a matching way, the dust and scale collecting mechanism 8 comprises an L-shaped plate 81, an adjusting screw 82, a plate frame 83, a dust collecting groove 84, a sliding block 85 and a sliding groove 86, the L-shaped plate 81 is arranged at the front end of the outer surface of the cutter plastic shell 3 in a matching way, the adjusting screw 82 is in threaded connection with the vertical plate body of the L-shaped plate 81, the front end of the adjusting screw 82 is in rotating connection with the rear side of the plate frame 83 through a bearing, the outer arc surface of the dust collecting groove 84 is fixedly connected with the front end of the plate frame 83, the sliding block 85 at the lower end of the dust collecting groove 84 is in sliding connection in the sliding groove 86 of the horizontal plate body of the L-shaped plate 81, the adjusting screw 82 is rotated, because the adjusting screw 82 is in threaded connection with the vertical plate body of the L-shaped plate 81, push dust collecting tank 84 to the blade 6 under the bottom, the dirt of scraping falls in dust collecting tank 84, avoid the emergence of the indiscriminate condition that falls of ash dirt wantonly, still include control switch 9, electronic box 10 and battery 11, control switch 9 adjusts the normal operating of light 16, electronic box 10 provides the storage space of battery 11, power supply is guaranteed to battery 11, control switch 9 and electronic box 10 set up in the rear side of cutter plastic housing 3, battery 11 cooperation sets up in the inside of electronic box 10, battery 11 is connected to control switch 9 electricity.

Wherein: still include first gooseneck 12, magnifying glass 13, second gooseneck 15 and light 16, first gooseneck 12 sets up in the surface upper end of cutter plastic shell 3, magnifying glass 13 sets up in the top of first gooseneck 12, second gooseneck 15 sets up in the surface left side of cutter plastic shell 3, light 16 sets up in the top of second gooseneck 15, light 16 electricity connection control switch 9, regulate and control through control switch 9, open light 16, swing second gooseneck 15 to the best illumination angle of light 16, light 16 provides auxiliary lighting, swing first gooseneck 12 to the biggest observation angle of magnifying glass 13, magnifying glass 13 provides supplementary observation, guarantee clear thoroughness.

Wherein: still include brush hair 14, brush hair 14 cooperation sets up in the preceding lateral wall edge of going out edge of a knife 4, and with the outer surface contact of blade 6, at the pull-back in-process of blade 6, brush hair 14 scrapes the surface of blade 6, and then brushes the adnexed grime on surface, avoids the grime to follow blade 6 and falls into inside cutter plastic housing 3.

Example two:

the difference between this embodiment and the first embodiment is:

in this embodiment, hang mechanism 2 and include riser 21, suspension frame 22 and sucking disc 23, riser 21 sets up in end fagging 1's upper end center, suspension frame 22 sets up in riser 21's left side upper end, suspension frame 22's middle part opening is worn into to the front end of cutter plastic shell 3, the hanging panel 17 of cutter plastic shell 3 both sides and the hanging mouth cooperation installation that suspension frame 22 upper end corresponds, end fagging 1's bottom four corners symmetry is equipped with the mounting groove, sucking disc 23 cooperation sets up in corresponding end fagging 1 bottom mounting groove.

The utility model discloses a set up like this, clean back that finishes using, wear into the middle part opening of hanging frame 22 with the front end of cutter plastic casing 3, the link plate 17 of cutter plastic casing 3 both sides and the mouthful cooperation installation of hanging that the hanging frame 22 upper end corresponds, sucking disc 23 adsorbs the face of putting, under end bracing plate 1, riser 21 and hanging frame 22 supporting role, hangs cutter plastic casing 3 and whole, avoids cutter contact desktop, and is unsettled to have guaranteed totally.

Example three:

the difference between this embodiment and the first embodiment is:

in this embodiment, the extension mechanism 5 includes the pushing block 51, the return spring 52, the flexible block 53 and the stripper plate 54, the pushing block 51 is symmetrically disposed at the rear ends of the upper and lower inner walls of the cutter plastic shell 3, the return spring 52 is disposed at the inner rear wall of the cutter plastic shell 3, and is located between the two pushing blocks 51, the rear end of the flexible block 53 is fixedly connected with the front end of the return spring 52, the flexible block 53 is disposed in cooperation with the pushing block 51, the front end of the flexible block 53 is fixedly connected with the rear end of the blade 6, the stripper plate 54 is symmetrically disposed at the upper and lower sides of the rear end of the outer surface of the cutter plastic shell 3, the stable guide mechanism 7 includes the guide slider 71 and the guide chute 72, the guide slider 71 is symmetrically disposed at the rear ends of the upper and lower sides of the blade 6, the guide chute 72 is symmetrically disposed on the upper and lower inner walls of the cutter plastic shell 3, and the guide slider.

Specifically, according to the arrangement, a thumb and a forefinger of one hand of a person respectively hold the corresponding extrusion plate 54, and press the extrusion plate 54 with force, so that the telescopic block 53 slides and moves forwards at the front end of the push block 51, and the blade 6 is pushed out through the knife outlet 4, in the extrusion process of the blade 6, as the guide sliding block 71 is in sliding connection with the corresponding guide sliding groove 72, the extrusion stable guide of the blade 6 is realized, and the safety in use or non-use is ensured, after the use is finished, the pressure on the extrusion plate 54 is relieved by the thumb and the forefinger, and under the action of the return spring 52, the telescopic block 53 is retracted, so that the blade 6 is retracted through the knife outlet 4.

When in use: an operator holds the corresponding extrusion plates 54 by a thumb and a forefinger of one hand respectively, presses the extrusion plates 54 hard, the rear side of the plastic shell 3 of the cutter deforms properly, so that the telescopic block 53 slides forwards at the front end of the pushing block 51, the blade 6 is pushed out through the knife outlet 4, in the extrusion process of the blade 6, the extrusion stable guiding of the blade 6 is realized due to the sliding connection of the guide sliding block 71 and the corresponding guide sliding groove 72, the safety in use or non-use is ensured, the other hand is regulated and controlled by the control switch 9, the illuminating lamp 16 is turned on, the second gooseneck tube 15 is swung to the optimal illumination angle of the illuminating lamp 16, the first gooseneck tube 12 is swung to the maximum observation angle of the magnifier 13, the adjusting screw 82 is screwed, and as the adjusting screw 82 is in threaded connection with the vertical plate body of the L-shaped plate 81, the front end of the adjusting screw 82 is rotatably connected with the rear side of the plate frame 83, the sliding block at the lower end of the dust collecting groove 84 is in sliding connection in the sliding groove of the transverse plate body of the L-shaped plate 81, the dust collecting groove 84 is pushed to the position right below the bottom end of the blade 6, then the endoscope lens to be cleaned is held by the other hand, the blade 6 transversely extends into the lens of the endoscope, the blade 6 of the arc-shaped mechanism scrapes dirt attached to the surface of the cleaning lens, the lens is made of sapphire, no scratch is caused, the scraped dirt falls in the dust collecting groove 84, the situation that the dirt and the dirt fall randomly is avoided, after the use, the blade 6 is cleaned by the cleaning brush after the use is finished, then the thumb and the forefinger relieve the pressure on the extrusion plate 54, the telescopic block 53 is retracted under the action of the return spring 52, so that the blade 6 is retracted through the knife outlet 4, in the retracting process of the blade 6, the bristles 14 scrape the surface of the blade 6, and then the dirt attached to the surface is brushed, avoid the ash scale to follow inside blade 6 falls into cutter plastic shell 3, clean back that finishes using, wear into hanging frame 22's middle part opening with the front end of cutter plastic shell 3, the link plate 17 of 3 both sides of cutter plastic shell and the mouthful cooperation installation of hanging that the hanging frame 22 upper end corresponds, sucking disc 23 adsorbs puts the face, at bottom suspension plate 1, under riser 21 and the supporting role of hanging frame 22, hang cutter plastic shell 3 and overall stability, avoid cutter contact desktop, unsettled assurance is clean.

It should be noted that the control switch 9 disclosed in the present embodiment controls the operation of the illumination lamp 16 in a conventional manner, and the illumination lamp 16 is a conventional element of the endoscope auxiliary cleaning apparatus in the prior art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cutter for cleaning the surface of an endoscope, characterized in that: comprises a bottom supporting plate (1), a hanging mechanism (2), an extending mechanism (5), a stabilizing guide mechanism (7) and an ash scale collecting mechanism (8), wherein the bottom supporting plate (1) is a stainless steel bottom supporting plate, the hanging mechanism (2) is arranged at the upper end of the bottom supporting plate (1), a cutter plastic shell (3) is installed at the upper end of the hanging mechanism (2) in a matching way, a knife outlet (4) is arranged at the front part of the cutter plastic shell (3), the extending mechanism (5) is arranged at the rear end of the interior of the cutter plastic shell (3), a blade (6) is arranged at the front end of the extending mechanism (5), the blade (6) is an arc-shaped blade and is respectively matched with the cutter plastic shell (3) and the knife outlet (4), the stabilizing guide mechanism (7) is symmetrically arranged at the two sides of the upper inner wall and the lower inner wall of the cutter plastic shell (3) and is matched with the inner wall of the cutter plastic shell (3) for installation, and the ash scale collecting mechanism (8) is arranged at the front end of the outer surface, still including control switch (9), electronic box (10) and battery (11), control switch (9) and electronic box (10) set up in the rear side of cutter plastic casing (3), and battery (11) cooperation sets up in the inside of electronic box (10), and control switch (9) electricity is connected battery (11).

2. The tool for cleaning the surface of an endoscope of claim 1, wherein: hang mechanism (2) including riser (21), suspension frame (22) and sucking disc (23), riser (21) set up in the upper end center of end fagging (1), suspension frame (22) set up in the left side upper end of riser (21), the middle part opening of suspension frame (22) is worn into by the front end of cutter plastic shell (3), link plate (17) that cutter plastic shell (3) both sides set up and the mouthful cooperation installation of hanging that suspension frame (22) upper end corresponds, the bottom four corners symmetry of end fagging (1) is equipped with the mounting groove, sucking disc (23) cooperation sets up in the end fagging (1) bottom mounting groove that corresponds.

3. The tool for cleaning the surface of an endoscope of claim 1, wherein: stretch out mechanism (5) including propelling movement piece (51), return force spring (52), flexible piece (53) and stripper plate (54), propelling movement piece (51) symmetry sets up in the upper and lower inner wall rear end of cutter plastic casing (3), return force spring (52) set up in the inside back wall of cutter plastic casing (3), and be located between two propelling movement pieces (51), the rear end of flexible piece (53) and the front end fixed connection who returns force spring (52), flexible piece (53) and propelling movement piece (51) cooperation set up, the front end of flexible piece (53) and the rear end fixed connection of blade (6), stripper plate (54) symmetry sets up downside on the surface rear end of cutter plastic casing (3).

4. The tool for cleaning the surface of an endoscope of claim 1, wherein: firm guiding mechanism (7) are including direction slider (71) and direction spout (72), direction slider (71) symmetry sets up in the upper and lower both sides rear end of blade (6), and direction spout (72) symmetry sets up on the upper and lower inner wall of cutter plastic housing (3), direction slider (71) and the direction spout (72) sliding connection who corresponds.

5. The tool for cleaning the surface of an endoscope of claim 1, wherein: mechanism (8) is collected to ash dirt includes L shaped plate (81), adjusting screw (82), grillage (83), dust collecting tank (84), slider (85) and spout (86), L shaped plate (81) cooperation sets up in the surface front end of cutter plastic housing (3), adjusting screw (82) and the vertical plate body threaded connection of L shaped plate (81), and the rear side rotation of bearing and grillage (83) is passed through to the front end of adjusting screw (82) is connected, the extrados of dust collecting tank (84) and the front end fixed connection of grillage (83), slider (85) of dust collecting tank (84) lower extreme slide connection in spout (86) of the horizontal plate body of L shaped plate (81).

6. The tool for cleaning the surface of an endoscope of claim 1, wherein: still include first gooseneck (12), magnifying glass (13), second gooseneck (15) and light (16), first gooseneck (12) set up in the surface upper end of cutter plastic shell (3), and magnifying glass (13) set up in the top of first gooseneck (12), and second gooseneck (15) set up in the surface left side of cutter plastic shell (3), and light (16) set up in the top of second gooseneck (15), light (16) electric connection control switch (9).

7. The tool for cleaning the surface of an endoscope of claim 1, wherein: the novel knife is characterized by further comprising bristles (14), wherein the bristles (14) are arranged at the edge of the front side wall of the knife outlet (4) in a matched mode and are in contact with the outer surface of the blade (6).