CN106580421B - A kind of three-jaw bone holding forcep convenient for gripping - Google Patents

A kind of three-jaw bone holding forcep convenient for gripping Download PDF

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Publication number
CN106580421B
CN106580421B CN201611060704.3A CN201611060704A CN106580421B CN 106580421 B CN106580421 B CN 106580421B CN 201611060704 A CN201611060704 A CN 201611060704A CN 106580421 B CN106580421 B CN 106580421B
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China
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movable claw
end
jaw bone
hose
convenient
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CN201611060704.3A
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Chinese (zh)
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CN106580421A (en
Inventor
吕露
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攀枝花市九鼎智远知识产权运营有限公司
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Priority to CN201611060704.3A priority Critical patent/CN106580421B/en
Publication of CN106580421A publication Critical patent/CN106580421A/en
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Abstract

The invention discloses a kind of three-jaw bone holding forcep convenient for gripping, including slide ontology, the end of slide ontology is equipped with the first movable claw and the second movable claw, first movable claw and the second movable claw pass through head respectively and are flexibly connected with the end of slide ontology, head includes at least an electrical isolation hose, electrical isolation hose is provided with electrorheological fluid, and when electrorheological fluid no power is liquid, stiffens into solid-state after energization.The rotation and fixation of movable claw are realized by head, movable claw can be better achieved stable holding, can be realized repeated simple operations, solve the problems such as existing three-jaw bone holding forcep stability is poor, and traction reduction operation is more complex.

Description

A kind of three-jaw bone holding forcep convenient for gripping

Technical field

The present invention relates to orthopaedic medical treatment apparatus field, in particular to a kind of three-jaw bone holding forcep convenient for gripping.

Background technique

During bone surgery, it is often necessary to use three-jaw bone holding forcep and be grabbed to the fracture site of long bone backbone, is multiple Position and be fixed temporarily.Generally, structure difference can be divided into three-jaw bone holder to three-jaw bone holding forcep in shape, three-jaw self centering is held Bone forceps and three-jaw are oriented to bone holding forcep.Three-jaw bone holder is made of vice body, pincers lid, screw rod, screw, fixing seat and handle;Three-jaw Self centering bone holding forcep are by left clamp handle, right clamp handle, active block, lock banking stop, support spring, gill axis screw, support spring screw, pointed tooth and rivet Composition;Three-jaw is oriented to bone holding forcep by left clamp handle, right clamp handle, guide head, connecting column, lock banking stop, support spring, branchia shaft screw, support spring spiral shell Nail and rivet composition, different depending on the application, the use structure of three-jaw bone holding forcep is also not quite similar.

In the prior art, the pawl of the front end of common three-jaw bone holding forcep two is all fixed and stiff, with more preferable Ground grips long bone shaft fracture reset, and for the fracture of some privileged sites, then it can not grip, and then cause existing There is common three-jaw bone holding forcep adaptability poor.

Chinese patent CN205569058U discloses a kind of three jaws bone holding forcep, its main feature is that by before three-jaw bone holding forcep It holds two pawls to be set as movable claw, the pawl of front end two is flexibly connected by aerofoil profile bolt and first unscrews aerofoil profile bolt when in use, The angle of movable claw is regulated, aerofoil profile bolt is then tightened, sliding clamps the tight fracture region bone of claw clip, after fixing to clamp pawl, i.e., Realize that fracture region is fixed without departing from solving the problems, such as that three-jaw bone holding forcep adaptability is poor, such as particularly suitable for privileged sites Intertrochanteric fracture grips.But the three-jaw bone holding forcep are more troublesome when in use, not only need to unscrew leading portion simultaneously Two movable claws will also respectively be fixed single-unit activity pawl, the comparison that operates is inconvenient, together in fixed movable claw When, when clip position needs to make adjustment, repeat aforesaid operations again, uses more troublesome.And it is tightening When movable claw, the clip position originally fixed easily occurs to loosen and change, and leads to bad stability, and traction reduction operation is more multiple The problems such as miscellaneous.

Summary of the invention

Goal of the invention of the invention is: in view of the above problems, providing a kind of three-jaw convenient for gripping and holds Bone forceps, poor to better solve three-jaw bone holding forcep stability, traction reduction operates the problems such as more complex.

The technical solution adopted by the invention is as follows: a kind of three-jaw bone holding forcep convenient for gripping, including slide ontology, it is sliding The end of seat ontology is equipped with the first movable claw and the second movable claw, and the first movable claw and the second movable claw pass through head respectively It is flexibly connected with the end of slide ontology, head includes at least an electrical isolation hose, and electrical isolation hose is provided with electric current Fluid is liquid when electrorheological fluid no power, stiffens into solid-state after energization.

Due to the setting of above structure, the rotation and fixation of movable claw are realized by head.When in use, activity dress No power is set, the electrorheological fluid being electrically insulated in hose is Newtonian fluid, and the first movable claw and the second movable claw are respectively at certainly By active state, fracture area can smoothly enter into this way convenient for movable claw, and it is made to match with fracture region bone, the first movable claw Behind the second movable claw position and angle adjustment properly, head is powered, and the electrorheological fluid being electrically insulated in hose is by electricity Field action is become the solid of the yield strength and Shear stress strength that have certain from liquid, and electrical isolation hose is hardened, and first is living Pawl and the second movable claw position are fixed, and then realize the effect of fixed movable claw, when clip position needs are made adjustment When, it need to only stop being powered to head, the electrorheological fluid being electrically insulated in hose is become due to losing electric field action by solid-state For liquid, movable claw is in active state again, and after simply carrying out repetitive operation in this way, stabilization can be better achieved in movable claw It grips, solves the problems such as existing three-jaw bone holding forcep stability is poor, and traction reduction operation is more complex.

Further, in order to make head that energization power operation be better achieved, slide ontology is interior to be equipped with conducting wire, conducting wire The electrorheological fluid in head is connected in one end, and the other end of conducting wire connects high-voltage DC power supply, conducting wire, electrorheological fluid and Power supply forms galvanic circle.

Further, in order to assist the fixed effect of enhancing head, the cantilever of the first movable claw and the second movable claw It is fixedly connected between cantilever by telescopic rod, telescopic rod includes rod set and the pull rod that is slidably connected in rod set, one end of rod set It is rotatablely connected with the cantilever of one of movable claw, rod set is equipped with the first lock-screw, and one end of pull rod is placed in rod set, draws The other end of bar and the cantilever of another one movable claw are rotatablely connected, and rod set passes through the first lock-screw steady brace.It uses When, unscrew the first lock-screw, after the angles and positions of movable claw regulate, movable claw is fixed in head energization, is twisted Tight first lock-screw, movable claw are fixed inflexibly, and any deflection can not occur and position loosens, eliminate head intensity The inadequate defect with stress, improves the stability gripped.

Further, in order to eliminate leakage, electric leakage the case where, the both ends for the hose that is electrically insulated be respectively equipped with electrical isolation stiffening ring and Conductive rigid ring, the end face of the connecting pin of the first movable claw, the second movable claw connecting pin end face and slide ontology end End face on be respectively equipped with card slot, on the end face of the connecting pin of the end face of the connecting pin of the first movable claw and the second movable claw respectively Cover one layer of electrical isolation rubber membrane, electrical isolation stiffening ring will be electrically insulated in rubber membrane indentation card slot, and respectively with the first movable claw Connecting pin and the connecting pin of the second movable claw be electrically insulated clamping, conductive rigid ring passes through the end part seal of card slot and slide ontology Connection.

Further, in order to make electrorheological fluid of the invention have stronger persistence and ER properties, current convertor The step of body is made by sulfonated polyaniline, and sulfonated polyaniline is made by chlorosulfuric acid, and chlorosulfuric acid prepares sulfonated polyaniline Include:

Step 1 weighs in 8-10 parts of polyanilines and 0.5 part of hydrochloric acid 78-81 parts of dichloroethanes of addition, is mixed and heated to 70 DEG C, 5min is kept the temperature, ultrasonic wave disperses 1h after mechanical stirring 15min, and be uniformly mixed liquid A;

Step 2 weighs 18-21 parts of chlorosulfonic acids and 16-18 parts of dichloroethanes are mixed evenly, and be uniformly mixed liquid B;

Uniform mixed liquid B is added at 70 DEG C into uniform mixed liquor A step 3 with the adding speed of 1 part/min, is protected It is filtered after warm 8h and obtains filter cake;

Filter cake is immersed in the deionized water that volume is 6 times of filter cake own vol by step 4, is hydrolyzed after being heated to reflux 5h Reaction solution is obtained, after reaction solution concentration is filtered, obtains reactant, reactant uses acetone instead after dehydrated alcohol washs 3 times Washing obtains washings until washing until cleaning solution is colourless;

Step 5, washings obtain sulfonated polyaniline powder after 80 DEG C of vacuum dry 36h.

Further, electrorheological fluid the preparation method comprises the following steps: by after sulfonated polyaniline powder mull, cross 325 meshes, surpassed Thin sulfonated polyaniline 20 parts of ultra-fine sulfonated polyanilines is added in 75 parts of dried dimethicones, mechanical stirring 5min Afterwards, then ultrasonic wave disperses 40min to get electrorheological fluid is arrived.

Electrorheological fluid obtained above requires pH value 7.5 or so, floats up and down between 0.3, the electric-field strength of application Degree is 2.3KV/mm, and shear stress reaches 200Pa or more.

Further, electrical isolation hose is high elastic rubber hose, is equipped with carbon fiber pipe or carbon fiber in electrical isolation hose Net, and the inner wall for the hose that is electrically insulated coats one layer of teflon coating.

Further, clamp jaw is slidably connected in the lower section sliding slot of slide ontology, slide ontology passes through the second lock-screw Fix to clamp pawl.

Further, slide ontology is equipped with the circuit switch of control galvanic circle opening and closing.

In conclusion by adopting the above-described technical solution, living the beneficial effects of the present invention are: being realized by head The rotation and fixation of pawl.When in use, head no power, the electrorheological fluid being electrically insulated in hose are Newtonian fluid, First movable claw and the second movable claw are respectively at free movement state, can smoothly enter into fracture area in this way convenient for movable claw, and It is set to match with fracture region bone, after the first movable claw and the second movable claw position and angle adjustment properly, head is logical Electricity, the electrorheological fluid being electrically insulated in hose are become that there is certain yield strength and shearing to answer from liquid by electric field action The solid of power intensity, electrical isolation hose are hardened, and the first movable claw and the second movable claw position are fixed, and then realize fixed work The effect of pawl need to only stop being powered to head when clip position needs to make adjustment, the electric current being electrically insulated in hose Fluid becomes liquid from solid-state due to losing electric field action, and movable claw is in active state again, simply carries out in this way After repetitive operation, movable claw can be better achieved stable holding and fix, and it is poor to solve existing three-jaw bone holding forcep stability, traction Reset the problems such as operation is more complex.

Detailed description of the invention

Fig. 1 is a kind of three-jaw bone holding forcep structural schematic diagram convenient for gripping of the invention;

Fig. 2 is the overlooking structure diagram of Fig. 1;

Fig. 3 is head structural schematic diagram of the invention;

Fig. 4 is slide ontology connecting pin groove position schematic diagram of the invention;

Fig. 5 is slide body part structural schematic diagram of the invention.

Marked in the figure: 1 is slide ontology, 101 be sliding slot, and 2 be the first movable claw, and 3 be the second movable claw, and 4 be activity dress It sets, 401 be electrical isolation hose, and 402 for electrical isolation stiffening ring, 403 be conductive rigid ring, and 5 be telescopic rod, and 501 be rod set, 502 It is the first lock-screw for pull rod, 6,7 be card slot, and 8 be electrical isolation rubber membrane, and 9 be clamp jaw, and 10 be the second lock-screw.

Specific embodiment

With reference to the accompanying drawing, the present invention is described in detail.

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.

As shown in Figures 1 to 5, a kind of three-jaw bone holding forcep convenient for gripping, including slide ontology 1, slide ontology 1 End is equipped with the first movable claw 2 and the second movable claw 3, the first movable claw 2 and the second movable claw 3 respectively by head 4 with The end of slide ontology 1 is flexibly connected, and head 4 includes at least an electrical isolation hose 401, and electrical isolation hose 401 is built-in There is an electrorheological fluid, when electrorheological fluid no power is liquid, stiffens into solid-state after energization.

When in use, 4 no power of head, the electrorheological fluid being electrically insulated in hose 401 are Newtonian fluid, and first is living Pawl 2 and the second movable claw 3 are respectively at free movement state, can smoothly enter into fracture area in this way convenient for movable claw, and make it Match with fracture region bone, after the first movable claw 2 and 3 position of the second movable claw and angle adjustment properly, head 4 is logical Electricity, the electrorheological fluid being electrically insulated in hose 401 are become the yield strength and shearing that have certain from liquid by electric field action The solid of stress intensity, electrical isolation hose 401 are hardened, and the first movable claw 2 and 3 position of the second movable claw are fixed, and then are realized The effect of fixed movable claw need to only stop being powered to head 4, be electrically insulated soft when clip position needs to make adjustment Electrorheological fluid in pipe 401 becomes liquid from solid-state due to losing electric field action, and movable claw is in active state again, this After sample simply carries out repetitive operation, movable claw can be better achieved stable holding and fix, and it is steady to solve existing three-jaw bone holding forcep Qualitative poor, traction reduction operates the problems such as more complex.

More specifically, in order to make head 4 that energization power operation be better achieved, slide ontology 1 is interior to be equipped with conducting wire, The electrorheological fluid in head 4 is connected in one end of conducting wire, and the other end of conducting wire connects high-voltage DC power supply, conducting wire, electric current Fluid and power supply form galvanic circle (being not drawn into figure).

As an improvement ground embodiment, in order to assist the fixed effect of enhancing head 4, the first movable claw 2 It is fixedly connected between cantilever and the cantilever of the second movable claw 3 by telescopic rod 5, telescopic rod 5 includes rod set 501 and is slidably connected at Pull rod 502 in rod set 501, as shown in Figure 2 and Figure 5, the cantilever of one end of rod set 501 and one of movable claw, which rotates, to be connected Connect, rod set 501 is equipped with the first lock-screw 6, and one end of pull rod 502 is placed in rod set 501, the other end of pull rod 502 and its In another movable claw cantilever rotation connection, rod set 501 pass through 6 steady brace 502 of the first lock-screw.In use, unscrewing First lock-screw 6, after the angles and positions of movable claw regulate, movable claw is fixed in the energization of head 4, tightens first Lock-screw 6, movable claw are fixed inflexibly, and any deflection can not occur and position loosens, eliminate head semi-finals degree and answer The inadequate defect of power, improves the stability gripped.

As an improvement ground embodiment, the case where in order to eliminate leakage, electric leakage, the both ends point of electrical isolation hose 401 She You not be electrically insulated stiffening ring 402 and conductive rigid ring 403, the end face of the connecting pin of the first movable claw 2, the second movable claw 3 Card slot 7, the end face of the connecting pin of the first movable claw 2 are respectively equipped on the end face of the end of the end face and slide ontology 1 of connecting pin With one layer of electrical isolation rubber membrane 8 is covered each by the end face of the connecting pin of the second movable claw 3, as shown in Fig. 2, electrical isolation stiffening ring 402 are pressed into electrical isolation rubber membrane 8 in card slot 7, and the connection with the connecting pin of the first movable claw 2 and the second movable claw 3 respectively End electrical isolation clamping, conductive rigid ring 403 are connect by card slot 7 with the end part seal of slide ontology 1.

It is preferably carried out mode as one kind, in order to make electrorheological fluid of the invention that there is stronger persistence and electric current Denaturation energy, electrorheological fluid are made by sulfonated polyaniline, and sulfonated polyaniline is made by chlorosulfuric acid, and chlorosulfuric acid prepares sulphur Change polyaniline the step of include:

Step 1 weighs in 9 parts of polyanilines and 0.5 part of hydrochloric acid 81 parts of dichloroethanes of addition, is mixed and heated to 70 DEG C, heat preservation Ultrasonic wave disperses 1h after 5min, mechanical stirring 15min, and be uniformly mixed liquid A;

Step 2 weighs 19 parts of chlorosulfonic acids and is mixed evenly with 18 parts of dichloroethanes, and be uniformly mixed liquid B;

Uniform mixed liquid B is added at 70 DEG C into uniform mixed liquor A step 3 with the adding speed of 1 part/min, is protected It is filtered after warm 8h and obtains filter cake;

Filter cake is immersed in the deionized water that volume is 6 times of filter cake own vol by step 4, is hydrolyzed after being heated to reflux 5h Reaction solution is obtained, after reaction solution concentration is filtered, obtains reactant, reactant uses acetone instead after dehydrated alcohol washs 3 times Washing obtains washings until washing until cleaning solution is colourless;

Step 5, washings obtain sulfonated polyaniline powder after 80 DEG C of vacuum dry 36h.

Among the above, each component proportion relation of mixed liquor A may is that 8 parts of polyanilines and 0.5 part of hydrochloric acid are added 78 part two Hybrid Heating in chloroethanes, at this time each component proportion relation of mixed liquid B are as follows: 18 parts of chlorosulfonic acids and 16 parts of dichloroethanes.Mixing The each component proportion relation of liquid A may also is that 21 parts of polyanilines and 0.5 part of hydrochloric acid are added in 18 parts of dichloroethanes, mix at this time The each component proportion relation of liquid B are as follows: 21 parts of chlorosulfonic acids and 18 parts of dichloroethanes.Correspondingly, each component proportion relation of mixed liquor A It is preferred that are as follows: 9 parts of polyanilines and 0.5 part of hydrochloric acid are added in 80 parts of dichloroethanes, at this time each component proportion relation of mixed liquid B are as follows: 20 parts of chlorosulfonic acids and 17 parts of dichloroethanes.

Furthermore, electrorheological fluid the preparation method comprises the following steps: by after sulfonated polyaniline powder mull, cross 325 meshes, Ultra-fine sulfonated polyaniline is obtained, 20 parts of ultra-fine sulfonated polyanilines are added in 75 parts of dried dimethicones, machinery stirs After mixing 5min, then ultrasonic wave disperses 40min to get electrorheological fluid is arrived.

It requires pH value 7.5 or so by electrorheological fluid obtained above, floats up and down between 0.3, the electricity of application Field intensity is 2.3KV/mm, and shear stress reaches 200Pa or more, is worked well.

As an improvement ground embodiment, electrical isolation hose 401 is high elastic rubber hose, is electrically insulated in hose 401 Equipped with carbon fiber pipe or carbon fibre web (not marking in figure), and the inner wall for the hose 401 that is electrically insulated coats a strata tetrafluoroethene Coating.

As an improvement ground embodiment, clamp jaw 9, slide sheet are slidably connected in the lower section sliding slot of slide ontology 1 Body 1 fixes to clamp pawl by the second lock-screw 10.

It further says, slide ontology 1 is equipped with the circuit switch of control galvanic circle opening and closing, to be preferably convenient for doctor Operation.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (7)

1. the end of a kind of three-jaw bone holding forcep convenient for gripping, including slide ontology, slide ontology is equipped with the first movable claw With the second movable claw, which is characterized in that the first movable claw and the second movable claw pass through the end of head Yu slide ontology respectively Portion is flexibly connected, and head includes at least an electrical isolation hose, and electrical isolation hose is provided with electrorheological fluid, current convertor It is liquid when body no power, solid-state is become from liquid after energization;Conducting wire is equipped in slide ontology, one end connection activity of conducting wire fills Interior electrorheological fluid is set, the other end of conducting wire connects high-voltage DC power supply, and conducting wire, electrorheological fluid and power supply form conductive return Road;Be fixedly connected between the cantilever of first movable claw and the cantilever of the second movable claw by telescopic rod, telescopic rod include rod set and The cantilever of the pull rod being slidably connected in rod set, one end of rod set and one of movable claw is rotatablely connected, and rod set is equipped with the One end of one lock-screw, pull rod is placed in rod set, and the other end of pull rod and the cantilever of another one movable claw are rotatablely connected, Rod set passes through the first lock-screw steady brace.
2. the three-jaw bone holding forcep as described in claim 1 convenient for gripping, which is characterized in that the both ends for the hose that is electrically insulated point She You not be electrically insulated stiffening ring and conductive rigid ring, the end face of the connecting pin of the first movable claw, the second movable claw connecting pin Card slot, the end face of the connecting pin of the first movable claw and the second movable claw are respectively equipped on the end face of end face and the end of slide ontology Connecting pin end face on be covered each by one layer of electrical isolation rubber membrane, the electrical isolation stiffening ring rubber membrane that will be electrically insulated is pressed into card slot It is interior, and the clamping that is electrically insulated respectively with the connecting pin of the connecting pin of the first movable claw and the second movable claw, conductive rigid ring pass through card Slot is connect with the end part seal of slide ontology.
3. the three-jaw bone holding forcep as described in claim 1 convenient for gripping, which is characterized in that electrorheological fluid is gathered by sulfonation Aniline is made, and the step of sulfonated polyaniline is made by chlorosulfuric acid, and chlorosulfuric acid prepares sulfonated polyaniline includes:
Step 1 weighs in 8-10 parts of polyanilines and 0.5 part of hydrochloric acid 78-81 parts of dichloroethanes of addition, is mixed and heated to 70 DEG C, protects Ultrasonic wave disperses 1h after warm 5min, mechanical stirring 15min, and be uniformly mixed liquid A;
Step 2 weighs 18-21 parts of chlorosulfonic acids and 16-18 parts of dichloroethanes are mixed evenly, and be uniformly mixed liquid B;
Uniform mixed liquid B is added at 70 DEG C into uniform mixed liquor A step 3 with the adding speed of 1 part/min, keeps the temperature 8h It filters afterwards and obtains filter cake;
Filter cake is immersed in volume in 6 times of filter cake own vol of deionized water, to be heated to reflux to hydrolyze after 5h and obtain by step 4 Reaction solution after filtering reaction solution concentration, obtains reactant, and reactant uses acetone washing instead after dehydrated alcohol washs 3 times, Until washing until cleaning solution is colourless, washings is obtained;
Step 5, washings obtain sulfonated polyaniline powder after 80 DEG C of vacuum dry 36h.
4. the three-jaw bone holding forcep as claimed in claim 3 convenient for gripping, which is characterized in that the preparation side of electrorheological fluid Method are as follows: after sulfonated polyaniline powder mull, cross 325 meshes, ultra-fine sulfonated polyaniline is obtained, by 20 parts of ultra-fine sulfonated polyanilines It is added in 75 parts of dried dimethicones, after mechanical stirring 5min, then ultrasonic wave dispersion 40min becomes to get to electric current Fluid.
5. the three-jaw bone holding forcep as described in claim 1 convenient for gripping, which is characterized in that electrical isolation hose is high resiliency Rubber hose, electrical isolation hose is interior to be equipped with carbon fiber pipe or carbon fibre web, and the inner wall for the hose that is electrically insulated coats a strata four Vinyl fluoride coating.
6. the three-jaw bone holding forcep as described in claim 1 convenient for gripping, which is characterized in that the lower section sliding slot of slide ontology Clamp jaw is inside slidably connected, slide ontology fixes to clamp pawl by the second lock-screw.
7. the three-jaw bone holding forcep as described in claim 1 convenient for gripping, which is characterized in that slide ontology is equipped with control The circuit switch of galvanic circle opening and closing.
CN201611060704.3A 2016-11-28 2016-11-28 A kind of three-jaw bone holding forcep convenient for gripping CN106580421B (en)

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CN201611060704.3A CN106580421B (en) 2016-11-28 2016-11-28 A kind of three-jaw bone holding forcep convenient for gripping

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Application Number Priority Date Filing Date Title
CN201611060704.3A CN106580421B (en) 2016-11-28 2016-11-28 A kind of three-jaw bone holding forcep convenient for gripping

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CN106580421B true CN106580421B (en) 2019-08-02

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090326469A1 (en) * 2008-06-26 2009-12-31 Tyco Healthcare Group Lp Surgical access instrument including a valve with dynamic fluid
CN204336882U (en) * 2014-12-26 2015-05-20 广州军区广州总医院 Endoscope fixing device
CN205569058U (en) * 2016-03-29 2016-09-14 福建康博医疗科技有限公司 Novel three -jaw bone holding forceps

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