CN1748657A - Dental floss opener for dental floss device - Google Patents

Dental floss opener for dental floss device Download PDF

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Publication number
CN1748657A
CN1748657A CN 200410074389 CN200410074389A CN1748657A CN 1748657 A CN1748657 A CN 1748657A CN 200410074389 CN200410074389 CN 200410074389 CN 200410074389 A CN200410074389 A CN 200410074389A CN 1748657 A CN1748657 A CN 1748657A
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CN
China
Prior art keywords
dental
floss
rotary screw
dental floss
screw portion
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Granted
Application number
CN 200410074389
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Chinese (zh)
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CN100525728C (en
Inventor
沈仲山
沈俊良
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Individual
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Individual
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Priority to CNB2004100743890A priority Critical patent/CN100525728C/en
Publication of CN1748657A publication Critical patent/CN1748657A/en
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Publication of CN100525728C publication Critical patent/CN100525728C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The dental floss opener for dental floss device includes floss-hooking telescopic rod, dental floss device body, rotating screw, connecting sleeve, rotary handlebar, and lower cover. It tightens or loosens the dental floss through fitting the square body of the floss-hooking telescopic rod and the square hole in the dental floss device body, screwing the rotating screw onto the floss-hooking telescopic rod, making the lower part of the screw contact to the elastic hook of the dental floss device body, embedding the bottom of the rotating screw inside the hole of the rotary handlebar, screwing the lower cover to the rotating screw, and thus driving the floss-hooking telescopic rod to stretch out and draw back.

Description

The dental floss device for spreading of dental-floss device
One, technical field
The present invention relates to dental appliance, the dental floss that relates in particular to a kind of dental-floss device supports device.
Two, background technology
Along with the raising of material life, people obtain for diet, not only purchase convenient everywhere and can variously select, and in the living environment with the edible product of multiclass like this, the tiny residue thing that remains between the slot of oral cavity also increases relatively.In order to allow a human mouth keep health and health, clean the between cog dirt by the oral cavity cleaning instrument of carrying, be subjected to people gradually and pay attention to.General oral cavity cleaning instrument commonly used has toothpick, dental floss and dental floss stick etc.Yet toothpick is that bamboo stem fritters the slice that forms, in use, often fracture in the oral cavity because of end user's undue force or toothpick most advanced and sophisticated select to miss sting tooth meat place, cause injury to the oral cavity; The use of dental floss needs the both hands auxiliary operation, so the cleaning of boil on the nape opposite the mouth intracavity side often intercepts the residue that can't make the effectively complete cleaning oral cavity of dental floss because of gesture; Habitual dental floss stick, because of the fixed form of dental floss only coats the dental floss two ends with the dental floss stick material, die as the end user when cleaning narrower and small slot, the dental floss two end Chang Yincheng of dental floss stick can't stand the pulling force of pullling and rupture, and then dental floss is sunk in the teeth space, cause end user oral cavity cleaning trouble, moreover, cleaning effect is poor because dental floss can not be strained, and especially the molar at rear, oral cavity can't use.
No. 5503169 (communique facsimile of United States Patent (USP) and for example, shown in the See Attachment 1), can learn by the technology contents that this case disclosed, this dental-floss device 10 mainly is to form two 14,16 at stem handle 17 upper end bifurcateds, and the lower end is connected in and holds body 18, and coil 52 passes packing ring 44 and coil 52 with axostylus axostyle 38 after being built in and holding in the body 18 and cover with upper shield 56 again, and wear fixingly by locking bolt 58, and then constitute the state that is used in combination of legend as shown in case.Because of this dental floss 12 draw outside twine through protruding divergent portion 28 and along a rake 14,16 after, intersects once more through protruding divergent portion 28 again that last returning twines after trough 24 is fixing before detouring, user can utilize and rotate upper shield 56 stretching dental floss 12 and clean the dirty purpose of tooth to reach.Yet at the use of this case, the inventor feels that still it still has partly shortcoming, is described as follows now:
Because the dental floss 12 elasticity adjustment of this dental-floss device 10 are by forward and backward upper shield 56 control coils 54 folding and unfolding dental floss 12, again, the position of reversing of this upper shield 56 only is a little position, when the application of force, must grant big moment, like this, for the little child of the handicapped old man of hand or strength, promptly constitute the inconvenience on using.
So the inventor is because above-mentioned shortcoming, and be engaged in cumulative experience of this technical research and knowledge, constantly test and improve, design the present invention finally with practical value according to me.
Three, summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that existing product exists, and provides a kind of dental floss of dental-floss device to support device, and it is scientific and reasonable for structure, operates simple and easy, easy to use and with environmental protection and medical effect.
The objective of the invention is to realize by following technical scheme.
The dental floss of dental-floss device of the present invention supports device, it is characterized in that, comprising: one colludes line expansion link, a dental-floss device body, a rotary screw portion, an affixed sleeve, a rotation handle and a bottom; Wherein: this colludes the extension of line expansion link lever front end and is provided with the dental floss raker that is corresponding arc shape, and this two dental floss raker upper end pole face respectively is arranged with a wire casing, and a terminal side respectively forms one and colludes line portion; Its body of rod lower semisection is the square shape body of rod, and inside is provided with the screw rod of screwhole spiro bonding in rotary screw portion upper end; This dental-floss device body is a tubular body, the tubule body square opening of epimere extension downwards is provided with several elastic fastening hooks, card tapering with the blocking rotary screw, the outside is provided with and screws togather dental floss roll around the nut that screws tight portion, the big body inside that is positioned at hypomere is provided with a stop section, and be provided with a tangent line sheet in outer upper end, and the lower end is provided with a taper clamp portion, and the bottom inner edge offers several affixed grooves; This rotary screw portion front end is provided with a screw rod, and the screw rod lower end has a coniform card tapering and a stop ring, and the lower end is provided with a screw rod, and the screw rod upper end has a polygonal body; This affixed sleeve outside is provided with several location rib, and the upper end is provided with a breach, and the bottom offers a through hole, and forms one for the room that places the dental floss circle in inside; This rotation handle bottom offers and the identical shaped polygonal trepanning of the rotary screw portion polygonal body in bottom; Utilize the said structure parts, rotary screw portion upper end screw rod is injected the big body of dental-floss device body, the stop section of this big body is against the stop ring of rotary screw portion, the elastic fastening hook of the card tapering of screw rod and dental-floss device body engaging simultaneously, make rotary screw portion can only rotate not flexible, and the square body of rod that will collude the line telescoping tube injects the square opening of the little body in dental-floss device body upper end, the front end screw rod of its pipe inner bolt hole and rotary screw portion is screwed togather, after again the dental floss snare being closed rotary screw portion, pass the polygonal trepanning of affixed telescopic through hole and rotation handle with rotary screw portion bottom screw rod, relend the screwhole spiro bonding rotary screw portion bottom screw rod that helps bottom in order to fixing, collude the flexible body of rod of line by the operation of rotation rotation handle drive rotary screw portion and stretch, thereby reach the effect of being convenient to the degree of tightness dental floss.
The dental floss of aforesaid dental-floss device supports device, and wherein affixed telescopic top is provided with a breach, and a clamp portion is offered in dental-floss device body bottom, is beneficial to dental floss and down makes line amount toward dental floss roll around the portion's of screwing tight winding time control via clamp portion by breach.
Aforesaid dental-floss device with dental floss device for spreading, the wherein affixed sleeve outside is provided with several location rib, and chimeric dental-floss device body bottom groove prevents that affixed sleeve from rotating, and is convenient to belled rotation handle drive rotary screw portion of affixed sleeve lower end institute and rotates smoothly.
The beneficial effect that the dental floss of dental-floss device of the present invention supports device is, it comprises and colludes the line expansion link, the dental-floss device body, rotary screw portion, affixed sleeve, rotation handle and bottom, it mainly utilizes and colludes line expansion link hypomere square shape body of rod fit dental-floss device body epimere tubule body square opening, and screw togather rotary screw portion upper end screw rod by colluding the flexible body of rod internal whorl of line, card tapering, screw rod lower end is resisted against on the elastic fastening hook, the polygonal trepanning of the chimeric rotation handle of polygonal body of rotary screw bottom, and screw togather the technological means of rotary screw portion bottom screw rod with bottom, just supply, it is flexible that the line expansion link is colluded in the drive of reverse turn operation rotation handle, reaches the effect of being convenient to the degree of tightness dental floss.
Four, description of drawings
Fig. 1 is a preferred embodiment combinative structure schematic perspective view of the present invention.
Fig. 2 is a preferred embodiment decomposition texture schematic perspective view of the present invention.
Fig. 3 is a preferred embodiment combinative structure cross-sectional schematic of the present invention.
Fig. 4 is for showing that the present invention colludes line body of rod expanding-contracting action sketch map.
Fig. 5 twines the action sketch map for showing dental floss of the present invention.
The number in the figure explanation: 1 colludes the line expansion link, the 11 square shape bodies of rod, 12 screws, 13 dental floss rakers, 131 wire casings, 132 collude line portion, 14 dental floss rakers, 141 wire casings, 142 collude line portion, 2 dental-floss device bodies, 21 little bodys, 22 square openings, 23 elastic fastening hooks, 24 dental floss rolls are around screwing tight portion, 25 nuts, 26 big bodys, 261 tangent line sheets, 27 stop sections, 28 clamp portions, 29 affixed grooves, 3 rotary screw portions, 31 front end screw rods, 32 card taperings, 33 stop rings, 34 bottom screw rods, 35 polygonal bodies, 4 affixed sleeves, 41 location rib, 42 breach, 43 through holes, 44 rooms, 5 rotation handles, 51 polygonal trepannings, 6 bottoms, 61 screws, 7 dental floss circles, 7 dental floss.
Five, the specific embodiment
The dental floss of dental-floss device of the present invention supports device, mainly includes one and colludes line expansion link, a dental-floss device body, a rotary screw portion, an affixed sleeve, a rotation handle and a bottom; Wherein:
This colludes line expansion link lever front end and extends the dental floss raker that is corresponding arc shape, and this two dental floss raker upper end pole face respectively is arranged with a wire casing, and a terminal side respectively forms one and colludes line portion; The square-shaped body of rod of its body of rod lower semisection, inside are provided with the screw rod of screwhole spiro bonding in rotary screw portion upper end;
This dental-floss device body is a tubular body, the tubule body square opening of epimere extension downwards is provided with several elastic fastening hooks, card tapering with the blocking rotary screw, the outside is provided with the nut that a dental floss roll screws togather around the portion of screwing tight, and the big body inside that is positioned at hypomere is provided with a stop section, and be provided with a tangent line sheet in outer upper end, and the lower end is provided with a taper clamp portion, and the bottom inner edge is offered several affixed grooves;
This rotary screw portion front end is provided with a screw rod, and the screw rod lower end has a coniform card tapering and a stop ring, and the lower end is provided with a screw rod, and is provided with a polygonal body in the screw rod upper end;
This affixed sleeve outside is provided with several location rib, and the upper end is provided with a breach, and a through hole is offered in the bottom, and forms a room for placing the dental floss circle in inside;
This rotation handle bottom offers and the identical shaped polygonal trepanning of the rotary screw portion polygonal body in bottom;
Rotary screw portion upper end screw rod is injected the big body of dental-floss device body by the said structure parts, the stop section of this big body is against the stop ring of rotary screw portion, the elastic fastening hook of the card tapering of screw rod and dental-floss device body engaging simultaneously, make rotary screw portion can only rotate not flexible, and the square body of rod that will collude the line telescoping tube injects the square opening of the little body in dental-floss device body upper end, the screw rod of its pipe inner bolt hole and rotary screw portion is screwed togather, again the dental floss snare is closed rotary screw portion, the polygonal trepanning of affixed telescopic through hole and rotation handle is passed in the back with rotary screw portion bottom screw rod, relend the screwhole spiro bonding rotary screw portion bottom screw rod that helps bottom in order to fixing, collude the flexible body of rod of line and stretch to utilize the rotation handle to drive the rotary screw operation, thereby reach the effect of convenient degree of tightness dental floss.
During concrete enforcement, please consult Fig. 1, shown in Figure 2 simultaneously, the dental floss of a kind of dental-floss device provided by the invention supports device, and it includes one and colludes line expansion link 1, a dental-floss device body 2, a rotary screw portion 3, one affixed sleeve 4, a rotation handle 5 and a bottom 6; Wherein:
This colludes line expansion link 1 lower semisection and forms the square shape body of rod 11, offers screw 12 in the bar, and upper semisection extends one group of dental floss raker 13,14 of corresponding formation, and respectively is arranged with a wire casing 131,141 in the upper end pole face, and a terminal side respectively forms one and colludes line portion 132,142;
This dental-floss device body 2 is a tubular body, the tubule body 21 of its epimere is offered a square opening 22, the extension of square opening 22 lower ends is provided with several elastic fastening hooks 23, the outside is provided with one and screws togather dental floss roll around the nut 25 that screws tight portion 24, big body 26 inside that are positioned at hypomere are provided with a stop section 27, and be provided with a tangent line sheet 261 in outer upper end, and the lower end is provided with a taper clamp portion 28, and the bottom inner edge is offered several affixed grooves 29 (showing as partly cut-away among Fig. 3);
These rotary screw portion 3 front ends are provided with a front end screw rod 31, and front end screw rod 31 lower ends have a coniform card tapering 32 and a stop ring 33, and the lower end is provided with a bottom screw rod 34, and screw rod 34 upper ends in bottom have a polygonal body 35;
The outside, affixed sleeve 4 stage casings is provided with several location rib 41, and the upper end is provided with a breach 42, and a through hole 43 is offered in the bottom, and forms a room 44 for placing dental floss circle 7 in inside;
These rotation handle 5 bottoms offer the polygonal trepanning 51 identical shaped with the polygonal body in rotary screw portion 3 bottoms 35;
A screw 61 is offered on these bottom 6 tops, can be for covering in rotation handle 5 bottoms;
By the said structure parts, these rotary screw portion 3 front end screw rods 31 inject the tubule body 21 of dental-floss device body 2, make stop section 27 in the big body in dental-floss device body 2 lower ends 26 against the stop ring 33 of rotary screw portion 3, and elastic fastening hook 23 engagings of the card tapering 32 of front end screw rod 31 and dental-floss device body 2, the square shape body of rod 11 that will collude line telescoping tube 1 again is plugged in the square opening 22 of dental-floss device body 2 upper end tubule bodies 21, and screw togather by screw 12 that colludes line expansion link 1 inside and rotary screw portion 3 front end screw rods 31, constitute connection status;
Again with after the dental floss circle 8 fit rotary screw portions 3, pass the through hole 43 and the polygonal trepanning 51 of affixed sleeve 4 and rotation handle 5 with rotary screw portion 3 bottom screw rods 34, and with the affixed groove 29 of affixed sleeve 4 outside location rib 41 chimeric dental-floss device bodies 2 bottoms, the screw 61 by bottom 6 screws togather rotary screw portion 3 bottom screw rods 34 and fixes with rotary screw portion 3 in order to the rotation handle again;
And because of colluding the tubule body 21 square openings 22 square-shaped fits of line expansion link 1 and dental-floss device body 2, after the square shape body of rod 11 that colludes line expansion link 1 inserts tubule body 21, the square opening 22 of this tubule body 21 can limit and collude 1 rotation of line expansion link, and rotary screw portion 3 is because of the polygonal trepanning 51 of the polygonal body 35 chimeric rotation handles 5 in bottom, so constitute utilize operation rotation handle 5 carry out suitable, be rotated counterclockwise and guide and collude line expansion link 1 relative dental-floss device body 2 and carry out expanding-contracting action (as shown in Figure 3).
Cooperation is consulted shown in Figure 2 again, after dental floss circle 7 places affixed sleeve 4, dental floss 71 is pulled out suitable length down pulls out from dental-floss device 2 bottom clamp portions 28 via affixed sleeve 4 upper end breach 42 again, make dental floss 71 be the S shape with the 28 restriction outlets of clamp portion, and the dental floss roll of the dental floss 71 past handles 2 of pulling out is around screwing tight 25 windings of portion 24 and nut, and then tension in the wire casing 131 of the dental floss raker 13 that colludes line expansion link 1 one ends, and the line portion 132 of colluding of dental floss raker 13 ends that unroll in succession, be pulled to the line expansion link 1 line portion 142 of colluding of the dental floss raker 14 of end in addition of colluding again, and the wire casing 141 past dental floss rolls of suitable dental floss raker 14 are around screwing tight 25 coilings of portion 24 and nut, and stay bolt twines and screws tight admittedly in addition, and then finish dental floss 71 and twine preparations, and can utilize the tangent line sheet 261 of dental-floss device body 2 front side edge easily to excise easily and use or long dental floss 71 (as shown in Figure 4).
During operation, hold dental-floss device body 2 and rotate rotation handle 5 and force rotary screw portion 3 front end screw rods, 31 straight lines to drive the line expansion link 1 that colludes that can only stretch to advance, and then with dental floss 71 stretchings; The dental floss 71 that has been tensioning this moment can be brought the action of enforcement cleaning teeth tooth dirt, and because of dental floss raker 13,14 is curved shape, can go deep into to clean easily regardless of the tooth or the both sides tooth slot that are the front side in the oral cavity, and backward rotation rotation handle 5 again after waiting to use up, to collude line expansion link 1 withdrawal, and make dental floss 71 must be relaxed state, and take off to block and abandon, reach easy use, save the purpose of resource.
The assembling of this dental-floss device, mainly be by the elastic fastening hook 23 of dental-floss device body 2 and card tapering 32 fixings of rotary screw portion 3 upper ends, and screw togather rotary screw portion 3 by rotation handle 5 bottoms by bottom 6, do not fix by any screw or packing ring, simple in structure, be convenient to combination, simplify the processing and preparing process, improve production capacity.
Can be removed easily because of colluding line expansion link 1, and then clean attached to the dirt of the tooth on the dental floss raker 13,14 or renew, to keep dental floss raker 13,14 cleanings, issuable hygienic issues is reused in prevention, so, value-for-money and meet environmental benefit not only.
Because the dental floss of dental-floss device of the present invention supports device, main utilization is colluded and is provided with screw 12 in line expansion link 1 square pole for the front end screw rod 31 that screws togather rotary screw portion 3 upper ends, and the card tapering 32 of front end screw rod 31 lower ends is for being resisted against on the elastic fastening hook 23, and rotary screw portion 3 lower ends are provided with the polygonal trepanning 51 of polygonal body 35 chimeric rotation handles 5, and screw togather rotary screw portion 3 bottom screw rods 34 with bottom 6 screws 61, by just, the mode of reverse turn operation rotation handle 5 drives colludes line expansion link 1 and stretches, to reach the effect of degree of tightness dental floss 71, so during operation, can provide user just to hold mode naturally, anti-operation rotation handle 5, to regulate the elasticity of dental floss 71, has easy-to-use effect.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Comprehensively above-mentioned, the dental floss of dental-floss device of the present invention supports device, not only overcome the shortcoming of existing oral hygiene appliance, be suitable for the tooth teeth space cleaning at each position, and meet the requirement that reduces the wasting of resources and safeguard the cleaning oral cavity health, each assembly is easy to manufacture and assemble fast and conveniently simultaneously, reaches the industry Practical Benefit, really have the novelty and the progressive of patent application, propose application for a patent for invention in accordance with the law.

Claims (3)

1, a kind of dental floss of dental-floss device supports device, it is characterized in that, comprising: one colludes line expansion link, a dental-floss device body, a rotary screw portion, an affixed sleeve, a rotation handle and a bottom; Wherein:
This colludes the extension of line expansion link lever front end and is provided with the dental floss raker that is corresponding arc shape, and this two dental floss raker upper end pole face respectively is arranged with a wire casing, and a terminal side respectively forms one and colludes line portion; Its body of rod lower semisection is the square shape body of rod, and inside is provided with the screw rod of screwhole spiro bonding in rotary screw portion upper end;
This dental-floss device body is a tubular body, the tubule body square opening of epimere extension downwards is provided with several elastic fastening hooks, card tapering with the blocking rotary screw, the outside is provided with and screws togather dental floss roll around the nut that screws tight portion, the big body inside that is positioned at hypomere is provided with a stop section, and be provided with a tangent line sheet in outer upper end, and the lower end is provided with a taper clamp portion, and the bottom inner edge offers several affixed grooves;
This rotary screw portion front end is provided with a screw rod, and the screw rod lower end has a coniform card tapering and a stop ring, and the lower end is provided with a screw rod, and the screw rod upper end has a polygonal body;
This affixed sleeve outside is provided with several location rib, and the upper end is provided with a breach, and the bottom offers a through hole, and forms one for the room that places the dental floss circle in inside;
This rotation handle bottom offers and the identical shaped polygonal trepanning of the rotary screw portion polygonal body in bottom;
Utilize the said structure parts, rotary screw portion upper end screw rod is injected the big body of dental-floss device body, the stop section of this big body is against the stop ring of rotary screw portion, the elastic fastening hook of the card tapering of screw rod and dental-floss device body engaging simultaneously, make rotary screw portion can only rotate not flexible, and the square body of rod that will collude the line telescoping tube injects the square opening of the little body in dental-floss device body upper end, the front end screw rod of its pipe inner bolt hole and rotary screw portion is screwed togather, after again the dental floss snare being closed rotary screw portion, pass with the polygonal trepanning that connects telescopic through hole and rotation handle with rotary screw portion bottom screw rod, relend the screwhole spiro bonding rotary screw portion bottom screw rod that helps bottom in order to fixing, drive the operation of rotary screw portion to collude the flexible body of rod of line flexible by rotating the rotation handle.
2, the dental floss of dental-floss device according to claim 1 supports device, it is characterized in that, described affixed telescopic top is provided with a breach, and a clamp portion is offered in dental-floss device body bottom, is beneficial to dental floss and down makes line amount toward dental floss roll around the portion's of screwing tight winding time control via clamp portion by breach.
3, the dental floss device for spreading of dental-floss device according to claim 1, it is characterized in that, the described affixed sleeve outside is provided with several location rib, chimeric dental-floss device body bottom groove prevents that affixed sleeve from rotating, and is convenient to belled rotation handle drive rotary screw portion of affixed sleeve lower end institute and rotates smoothly.
CNB2004100743890A 2004-09-14 2004-09-14 Dental floss opener for dental floss device Expired - Fee Related CN100525728C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100743890A CN100525728C (en) 2004-09-14 2004-09-14 Dental floss opener for dental floss device

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Application Number Priority Date Filing Date Title
CNB2004100743890A CN100525728C (en) 2004-09-14 2004-09-14 Dental floss opener for dental floss device

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CN1748657A true CN1748657A (en) 2006-03-22
CN100525728C CN100525728C (en) 2009-08-12

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011039653A1 (en) * 2009-09-30 2011-04-07 Chunmei Chen Dental floss bow
CN104414762A (en) * 2013-09-04 2015-03-18 梁万志 Improved floss pick structure
WO2015176261A1 (en) * 2014-05-21 2015-11-26 罗伟武 Dental floss pick combination apparatus
WO2016074517A1 (en) * 2014-11-14 2016-05-19 艾历有限公司 Dental floss device
CN105877860A (en) * 2015-02-16 2016-08-24 李哲宰 Interdental cleaning apparatus using both hands
CN107072758A (en) * 2014-04-08 2017-08-18 株式会社花伊美制药 Pocket storage type flossing tools
CN111388113A (en) * 2020-03-27 2020-07-10 牡丹江医学院 Oral care implement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913597A (en) * 1974-09-20 1975-10-21 James E Day Floss holder

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011039653A1 (en) * 2009-09-30 2011-04-07 Chunmei Chen Dental floss bow
CN104414762A (en) * 2013-09-04 2015-03-18 梁万志 Improved floss pick structure
CN107072758A (en) * 2014-04-08 2017-08-18 株式会社花伊美制药 Pocket storage type flossing tools
WO2015176261A1 (en) * 2014-05-21 2015-11-26 罗伟武 Dental floss pick combination apparatus
WO2016074517A1 (en) * 2014-11-14 2016-05-19 艾历有限公司 Dental floss device
US10039624B2 (en) 2014-11-14 2018-08-07 Id Infinity Limited Dental floss device
CN105877860A (en) * 2015-02-16 2016-08-24 李哲宰 Interdental cleaning apparatus using both hands
CN111388113A (en) * 2020-03-27 2020-07-10 牡丹江医学院 Oral care implement

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