CN105055012B - Bone cement stirring syringe - Google Patents
Bone cement stirring syringe Download PDFInfo
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- CN105055012B CN105055012B CN201510497012.4A CN201510497012A CN105055012B CN 105055012 B CN105055012 B CN 105055012B CN 201510497012 A CN201510497012 A CN 201510497012A CN 105055012 B CN105055012 B CN 105055012B
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- injection
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- bone cement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
- B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
- B01F33/50112—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the syringe or cartridge type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/20—Mixing of ingredients for bone cement
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The present invention relates to a kind of bone cement stirring syringes, including：Both premix barrel, both premix barrel are equipped with premix chamber, and both premix barrel first end is equipped with the first opening being connected to premix chamber, and the second end of the both premix barrel is equipped with the second opening being connected to premix chamber；Infusing device, infusing device include injecting bar, and the first end for injecting bar is set in both premix barrel, and are stretched into premix chamber by the second opening；Injection head, injection head include the injection lid being connected and injection nozzle, and injection nozzle is equipped with injection orifice, and injection is covered equipped with the injection through-hole being connected to injection orifice；Agitating device, including mixing cover, agitating shaft and stirring-head, agitating shaft are rotatably mounted on mixing cover, and stirring-head is connected to one end of agitating shaft；Wherein, when mixing cover is installed on the first opening of both premix barrel, stirring-head is stretched by the first opening in premix chamber；When injection lid is installed on the first opening of both premix barrel, injection orifice is connected to premix chamber.Easy to use, operation connecting is good.
Description
Technical field
The invention belongs to medical instruments fields, and in particular to a kind of bone cement stirring syringe.
Background technology
It in vertebroplasty, needs that bone cement is perfused into centrum, the doctor of sutura and gap is filled by bone cement streamer
Treatment technology can play the role of firm centrum.Existing method is that bone cement powder is first poured into one to be similar to stirring for bowl
Device is mixed, adds water (or other liquid) stirring to form bone cement, after bone cement is stirred, bone cement is poured into syringe from blender
It is interior, bone cement is injected in human body using syringe.Very big drawback has been done so, due to the viscosity characteristics of bone cement itself,
Bone cement is taken time and effort from the process beaten into blender in syringe, the contaminated risk of bone cement increases.In addition, bone
It will be solidified by the regular hour after cement mixing is good, often result in doctor and bone cement be not injected in vivo just generation completely
Solidification phenomenon, influences surgical effect.
Invention content
The invention reside in overcoming the deficiencies of existing technologies, a kind of bone cement stirring syringe is provided, is provided simultaneously with stirring, note
The function of bone cement is penetrated, easy to use, operation connecting is good.
Its technical solution is as follows：
A kind of bone cement stirring syringe, including：Both premix barrel, both premix barrel are equipped with premix chamber, and both premix barrel first end is equipped with
The first opening being connected to premix chamber, the second end of the both premix barrel are equipped with the second opening being connected to premix chamber；Infusing device,
Infusing device includes injecting bar, and the first end for injecting bar is set in both premix barrel, and is stretched into premix chamber by the second opening；Note
Penetrate head, injection head includes the injection lid being connected and injection nozzle, and injection nozzle is equipped with injection orifice, and injection, which covers, to be equipped with and injection orifice
The injection through-hole of connection；Agitating device, including mixing cover, agitating shaft and stirring-head, agitating shaft are rotatably mounted on mixing cover,
Stirring-head is connected to one end of agitating shaft；Wherein, when mixing cover is installed on the first opening of both premix barrel, stirring-head passes through
One opening stretches into premix chamber；When injection lid is installed on the first opening of both premix barrel, injection orifice is connected to premix chamber.
A kind of bone cement stirring syringe, including：Both premix barrel, both premix barrel are equipped with premix chamber, and the first end of both premix barrel is set
There are the first opening being connected to premix chamber, both premix barrel second end to be equipped with the second opening being connected to premix chamber；Injection head, injection head
Interior to be equipped with injection orifice, injection head is installed on the first opening, and injection orifice is connected to premix chamber；Agitating device, including mixing cover and
Stirring-head, the stirring-head are installed on the mixing cover；Infusing device, infusing device include injecting lid and injecting bar, are injected
Bar is installed on to inject and cover；Wherein, when mixing cover is installed on the second end of both premix barrel, stirring-head is stretched into pre- by the second opening
Mixed intracavitary；When injecting lid and being installed on the second end of both premix barrel, injects the first end of bar and stretched into premix chamber by the second opening.
The agitating shaft is equipped with gear in one of the embodiments, and moveable tooth is additionally provided on the mixing cover
Item, the rack are engaged with the gear.
The agitating device further includes having hollow mixing drum in one of the embodiments, the inner wall of the mixing drum
It is equipped with helicla flute, the agitating shaft is installed in the mixing drum, and the side of the agitating shaft is equipped with convex block, the convex block
It is installed in the helicla flute.
The second end of the both premix barrel is equipped with the limit hole being connected to premix chamber in one of the embodiments, described to push away
Noting bar passes through the limit hole, the outer wall for injecting bar to be respectively equipped with the screw thread to match on the inner wall of the limit hole.
The first end for injecting bar, which is equipped with, in one of the embodiments, injects head, the head for injecting head forward,
Towards the premix chamber, backward, and the tail portion for injecting head or side wall are equipped at least two for the tail portion for injecting head
Retaining arm, back sweep of the retaining arm to the outside for injecting rostral face.
The infusing device further includes injecting lid in one of the embodiments, it is described inject lid be installed on it is described pre-
Second opening of mixed cylinder；Wherein, the bottom wall for injecting lid is equipped with pusher through-hole, and the second end for injecting bar passes through institute
It states and is injected outside lid described in the stretching of pusher through-hole；Alternatively, described inject is equipped with axial slideway in lid, the side for injecting bar is set
There are the sliding block of protrusion, the sliding block to be slidably mounted in the slideway.
The stirring-head includes stirring main body in one of the embodiments, and the stirring main body is installed on described stir
It mixes on axis, the stirring-head further includes having at least one mixing arm, and the first end of the mixing arm is connect with stirring main body, described
The second end of mixing arm is free end；Alternatively, the stirring-head further includes having at least one paddle, the paddle is installed on
The side of the stirring main body, the paddle are equipped with poke hole.
The paddle is spaced at least two in one of the embodiments, and one of paddle stirs
Mix the stirring pore radius that pore radius is more than another paddle.
Injection head includes the injection lid being connected and injection nozzle in one of the embodiments, and injection nozzle is equipped with described
Injection orifice, injection are covered equipped with the injection through-hole being connected to the injection orifice, and injection lid is installed on the first opening of both premix barrel.
The beneficial effects of the present invention are：
After bone cement is stirred in the premix chamber of both premix barrel, agitating device is unloaded from both premix barrel, injection head is pacified
In both premix barrel, bone cement is injected to from the injection canal on injection head in human body using infusing device.It need not be by bone
Cement is poured out out of premix chamber, easy to operate, can shorten operating time, reduces the contaminated risk of bone cement, and shorten
From bone cement is stirred to the time being injected to bone cement in human body, prevent bone cement before being injected into human body with regard to solidifying
And influence surgical effect.
Description of the drawings
Fig. 1 is the local structural graph of the embodiment of the present invention one；
Fig. 2 is the local structural graph of the embodiment of the present invention one
Fig. 3 is the structure chart of agitating device in the embodiment of the present invention one；
Fig. 4 is the structure chart of stirring-head in the embodiment of the present invention one；
Fig. 5 is the sectional view that one agitating device of the embodiment of the present invention is installed on both premix barrel；
Fig. 6 is the structure chart of injection head in the embodiment of the present invention one；
Fig. 7 is the structure chart that one injection head of the embodiment of the present invention is installed on both premix barrel；
Fig. 8 is the sectional view that one injection head of the embodiment of the present invention is installed on both premix barrel；
Fig. 9 is the structure chart that head is injected in the embodiment of the present invention one；
Figure 10 is the structure chart of agitating device in the embodiment of the present invention two；
Figure 11 is the structure chart of agitating device in the embodiment of the present invention two；
Figure 12 is the structure chart of both premix barrel in the embodiment of the present invention four；
Figure 13 is the structure chart of infusing device in the embodiment of the present invention four；
Figure 14 is the structure chart that plate and mandril are injected in the embodiment of the present invention four；
Figure 15 is the structure chart of baffle in the embodiment of the present invention four；
Figure 16 is the partial sectional view of the embodiment of the present invention four；
Figure 17 is the cross section view of four middle sleeve of the embodiment of the present invention；
Figure 18 is the sectional view that four agitating device of the embodiment of the present invention is installed on both premix barrel；
Figure 19 is the sectional view that four injection head of the embodiment of the present invention is installed on both premix barrel.
Reference sign：
100, both premix barrel, the 110, premix chamber, 120, first opening, 130, supported hole, 140, pushing tow hole, 210, injection lid,
220, injection tube, 221, injection canal, 230, injection nozzle, 231, injection orifice, 300, inject lid, 310, pusher through-hole, 320, limit
Position platform, 330, sliding slot, 340, rotation slot, 350, baffle, 351, pushing part, 352, installation screens, 353, reinforce platform, 354, hanging buckle
It is recessed, 360, bottom plate, 370, sleeve, 410, inject bar, 411, inject head, 4111, retaining arm, 412, handle, 420, inject plate,
421, mandril, 422, hanging buckle it is convex, 423, inject channel, 424, inject hole, 425, bolus tube, 430, sliding block, 440, third spring,
510, stirring-head, 511, stirring main body, 512, paddle, 520, agitating shaft, 521, convex block, 522, gear, 530, mixing cover,
531, the first spring, 540, mixing drum, 541, helicla flute, 542, second spring, 550, rack.
Specific implementation mode
Invention is further described in detail below, and embodiments of the present invention are not limited thereto.
Embodiment one
Bone cement injector includes both premix barrel, injection head, agitating device, infusing device.
As shown in Figure 1, 2, both premix barrel 100 is equipped with premix chamber 110, and 100 first end of both premix barrel is equipped with to be connected with premix chamber 110
The first logical opening 120, the second end of both premix barrel are equipped with the limit hole being connected to premix chamber 110.Infusing device includes injecting lid
300, bar 410, bolus tube 425 are injected.Bolus tube 425, which is equipped with, injects channel 423, and the first end of bolus tube 425, which is equipped with, injects
Plate 420 injects plate 420 equipped with hole 424 is injected, injects hole 424 and be connected to channel 423 is injected.The first end for injecting bar 410 is set
First 411 are injected, the second end for injecting bar 410 is equipped with handle 412, injects first 411 and is sheathed on and injects outside bar 410.Inject first 411
Can be that the material different from bar 410 is injected is made, generally softer, good airproof performance the material using quality, such as rubber, silica gel
Deng.The bottom wall for injecting lid 300 is equipped with pusher through-hole 310, and the bottom wall for injecting lid is equipped with protrusion towards the one side for injecting plate 420
Limiting stand 320, limiting stand 320 are equipped with the limiting through hole being connected to pusher through-hole 310.Pusher through-hole 310 is interior with limiting through hole
Wall is equipped with screw thread, matched, injects and also is provided with screw thread on the side wall of bar 410.It injects lid 300 and is covered on both premix barrel 100
Second end, bolus tube 425 are slidably mounted in limit hole, are injected plate 420 and are located in premix chamber 110.Inject the shape of plate 420
It is matched with the inner wall shape of premix chamber 110, further includes having sealing ring, there is groove, sealing ring to be set at the edge for injecting plate 420
In groove.Sealing ring can effectively push bone cement for injecting being sealed when plate 420 moves in premix chamber 110.
It injects bar 410 and is installed on and inject in channel 423, the end face for injecting first 411 head is concordant with the end face for injecting plate 420.
Lid 300 is injected to be sheathed on outside both premix barrel 100, the second end of bolus tube 425 against the bottom wall for injecting lid 300, and
The second end of bolus tube 425 is set in outside limiting stand 320, and the second end for injecting bar 410 passes through limiting through hole and pusher through-hole 310
Stretching is injected outside lid 300, and handle 412, which is located at, injects outside lid 300.
As shown in Fig. 3 to 5, agitating device includes mixing cover 530, agitating shaft 520, stirring-head 510, hollow mixing drum
540, agitating shaft 520 is rotatably mounted on mixing cover 530, and the first spring 531 is equipped between agitating shaft 520 and mixing cover 530
As buffering, stirring-head 510 includes stirring main body 511 and at least one paddle 512, and stirring main body 511 is installed on stirring
The first end of axis 520, paddle 512 are flatly installed on the side of stirring main body 511, and paddle 512 is equipped with poke hole, stirs
The side for mixing leaf 512 constitutes " C " font.Six paddles 512 are set in the present embodiment, it is two groups that six paddles 512, which are divided to, two
Group 512 transpostion interval of paddle setting, the maximum stirring radius of one of which paddle 512 are less than another group of paddle 512
Maximum stirring radius, is conducive to preferably stirring bone cement.(form of stirring-head 510 is without being limited thereto, can also be stirring-head 510
Include stirring main body 511 and at least one mixing arm, the first end of mixing arm is connect with main body 511 is stirred, and the of mixing arm
Two ends are free end.) inner wall of mixing drum 540 is equipped with helicla flute 541, the second end of agitating shaft 520 is installed on mixing drum 540
In, it is set on the side of 520 second end of agitating shaft there are two opposite convex block 521, two convex blocks 521 are arranged in helicla flute 541.
It is equipped with second spring 542 between agitating shaft 520 and mixing drum 540, mixing drum 540 is moved along the axis direction of agitating shaft 520, leads to
It crosses helicla flute 541 and the cooperation of convex block 521 drives stirring-head 510 to rotate, bone cement is stirred, easy to operate, second spring
542 make mixing drum 540 can be with automatic rebounding to top, convenient for mixing drum 540 is forced, stirring efficiency is high from the top down.Stirring
Lid 530 can be installed on the first end of both premix barrel 0, and the two be threadably secured (it is without being limited thereto, can also be other locks
Structure, such as concave-convex buckle structure).When mixing cover 530 is installed on the first end of both premix barrel 100, stirring-head 510 is opened from first
Mouth 120 stretches into premix chamber 110, is stirred to the bone cement in premix chamber 110.Bone cement is in the premix chamber 110 of sealing
It is stirred, reduces pollution, avoid the bad smell of bone cement excessive.
As shown in Fig. 6 to 8, injection head includes sequentially connected injection lid 210, injection tube 220, injection nozzle 230, injection lid
210 are equipped with injection through-hole, and injection tube 220 is equipped with injection canal 221, and injection nozzle 230 is equipped with injection orifice 231, and injection is logical
Hole, injection canal 221, injection orifice 231 are sequentially communicated.Injection lid 210 can be covered on the first end of both premix barrel 100, and two
Person is threadably secured (without being limited thereto, to can also be other buckle structures, such as concave-convex buckle structure).When injection lid 210 is pacified
When first end loaded on both premix barrel 100, injection canal 221 is connected to premix chamber 110, and the cross section of injection canal 221 is less than pre-
The cross section of mixed chamber 110, makes bone cement obtain higher injection pressure, is injected in human body conducive to bone cement.
It (can also be other locks to inject and be respectively equipped with matched screw thread on the inner wall of lid 300 and the outer wall of both premix barrel 100
Buckle structure).Rotation is when injecting lid 300, and under the threaded function on injecting lid 300 and both premix barrel 100, injecting lid 300 can be by
The spiral of screw thread moves axially, and rotates forward when injecting lid 300, injects the bottom wall pushing tow bolus tube 425 of lid to both premix barrel 100
First extreme direction moves, and injects plate 420 and is moved together with injecting first 411, injects plate 420 and injects first 411 jointly by bone cement
It is squeezed in push-in injection canal 221 from premix chamber 110.When inject plate 420 withstand injection lid 210 when, cannot move again, at this time bone water
Mud fully enters in injection canal 221.At this point, the rotation of bar 410 is injected in the drive of handle 412 that bar 410 is injected in rotation, bar is being injected
410 and pusher through-hole 310, limiting through hole on threaded function under, injecting bar 410 can be moved axially by the spiral of screw thread, just
It when injecting bar 410 to rotation, injects bar 410 and is moved to 231 direction of injection orifice, inject first 411 by bone cement from injection canal 221
Interior pushing is finally injected in human body to injection orifice 231, then by injection orifice 231.Since bone cement viscosity is high, by injection canal
221 cross section is designed as smaller than premix chamber 110, can increase the injection pressure of bone cement, facilitate injection bone cement, is conducive to behaviour
Make.Also, the cross section of premix chamber 110 is big, facilitates and pours into bone cement powder and water wherein, is also conducive to the stirring of bone cement.
It injects lid 300 and 100 screw-thread fit of both premix barrel, inject bar 410 and pusher through-hole 310, limiting through hole screw-thread fit, by screw thread
Screw and push crowded bone cement, the pushing force of bigger can be obtained, be conducive to injection bone cement.
Wherein, for prevent from injecting head retreat, inject first 411 structure as shown in figure 9, inject first 411 tail portion tool there are two
Retaining arm 4111 (without being limited thereto, more than two retaining arms can be arranged), retaining arm 4111 is to outside the side for injecting first 411
The back sweep of side, when inject first 411 be located at inject in channel 423 when, inject first 411 head towards 110 side of premix chamber,
Two 4111 tail ends of retaining arm are against the side wall for injecting channel 423.When injecting bone cement, injects 410 pushing tow of bar and inject first 411
Tail portion, two retaining arms 4111 clamp the head for injecting bar 410.When pushing bone cement forward, the pressure of bone cement reacts on
First 411 are injected, first 411 is injected and is acted on by power backward, the outer inclination due to retaining arm 4111 to the side for injecting first 411
Tiltedly and the inner wall for injecting channel 423 is resisted, under the force effect that rubs, retaining arm 4111, which is deformed to withstand on, injects channel 423
Side wall on, prevent from injecting first 411 and retreat.
When specific operation, first bone cement powder and water are poured into together in premix chamber 110, mixing cover 530 is covered on pre-
The first end of mixed cylinder 100, stirs into bone cement by bone cement powder and water using stirring-head 510, after bone cement is stirred, removes
Injection head, is installed on the first end of both premix barrel 100 by mixing cover 530, and rotating bolus injection lid 300 squeezes bone cement from premix chamber 110
Enter injection canal 221, bone cement is injected to from injection canal 221 in human body by rotational handle 412.In whole operation, only need to hand over
For by mixing cover 530 and injection lid 210 be installed in both premix barrel 100, bone cement need not be shifted, reduce topple over it is highly viscous
The operation of bone cement also avoids bone cement contaminated, enters human body to bone cement from bone cement is stirred, interval time is short, can
It has just been solidified with preventing bone cement from not injecting also, sufficient operating time can be provided, be conducive to the progress of operation.
Embodiment two
Embodiment two and embodiment one difference lies in：
As shown in Figure 10,11, agitating shaft 520 is equipped with gear 522, and rack 550 and two teeth are additionally provided on mixing cover 530
Hole, rack 550 sequentially pass through two rack bores, and rack 550 is engaged with gear 522.When stirring bone cement, come in rack bore
Carry-over bar 550 is moved back, rack 550 is made to be rotated with moving gear 522, to drive stirring-head 510 to rotate, is stirred.
Embodiment three
Embodiment three and embodiment one difference lies in：
Referring to figs. 1 to 9, limit hole is not set in both premix barrel, both premix barrel is equipped with second be connected to premix chamber and is open, and second
Opening is oppositely arranged with the first opening, and injection lid 210 is covered at the first opening 122, the compatible mixing cover of the second opening 530 with push away
Lid 300 is noted, mixing cover 530 the second opening can be covered on, can also will inject lid 300 and be covered on the second opening.Make
Injection lid 210 is first covered on the first opening, mixing cover 530 is covered on the second opening, at this time stirring-head 510 by the used time
Premix chamber 110 is stretched into, bone cement is stirred using stirring-head 510, after being stirred, removes mixing cover 530, lid will be injected
300 are covered on the second opening, inject plate at this time and inject bar 410 and stretch into premix chamber 110, similar with embodiment one, make
Bone cement is injected in human body with infusing device.
Example IV
Example IV and embodiment one difference lies in：
As shown in figure 12, supported hole 130 and pushing tow hole 140 are equipped in both premix barrel 110, supported hole 130, pushing tow hole 140 are equal
It is connected to premix chamber 110.
As shown in figure 13, infusing device includes to inject bar 410, inject plate 420, inject lid 300, baffle 350, injects bar
410 first end is equipped with and injects first 411.
As shown in figure 14, inject plate 420 be equipped with mandril 421, the first end of mandril 421 with inject connecting on one side for plate 420
It connects, injects to be additionally provided on plate 420 and inject hole 424.
As shown in Figure 15 to 16, it includes sleeve 370 and bottom plate 360 to inject lid, and sleeve 370 is from its first end to second end packet
Sequentially connected thread segment, rotational segment, glissile segment are included, bottom plate 360 is connected to the second end of sleeve 370.Wherein, thread segment is interior
Wall is equipped with the first screw thread, and the inner wall of rotational segment is equipped with circumferential rotation slot 340, inner cylinder is equipped in the glissile segment of sleeve 370,
The second end of inner cylinder is connected to bottom plate 360, and inner cylinder is hollow, in be equipped with axial slide 330 (it is without being limited thereto, can also be inner cylinder
Inside sidewalls be equipped with axial sliding slot).Baffle 350 is set in sleeve 370, and the first face of baffle 350 is towards mandril 421, the
Towards inner cylinder, the first face of baffle 350 is equipped with pushing part 351 in two faces, and the second face of baffle 350 is equipped with two panels card, and two
Installation screens 352 is constituted between piece card, the first end of inner cylinder is arranged in installation screens 352, can also be by inner cylinder and baffle
350 are welded and fixed.Baffle 350 is equipped with first through hole, and the first face of baffle 350 is equipped with the reinforcement platform 353 of protrusion, reinforces platform
353 are equipped with the second through-hole, and first through hole is connected to the second through-hole, and the side for reinforcing platform 353 is equipped with hanging buckle recessed 354.
Both premix barrel 100 is installed on from the first end of sleeve 370 in sleeve 370, under preassembled condition, the thread segment of sleeve 370
Interior screw thread just with the screw-thread fit outside both premix barrel.Plate 420 is injected in the premix chamber 110, inject the shape of plate 420 with it is pre-
The inner wall shape of mixed chamber 110 matches, and the second end of mandril 421 passes through pushing tow hole 140 to be stretched out from premix chamber 110, and against
The side of pushing part 351, the second end of mandril 421 is equipped with hanging buckle convex 422, hanging buckle convex 422 and recessed 354 mutual hanging buckle of hanging buckle, and
And it since baffle 350 is connected and fixed with inner cylinder by installing screens 352, when sleeve 370 when moving axially back and forth, can drive
Baffle 350 moves axially back and forth, injects plate 420 and moves axially back and forth.Mandril 421 is at least two, and pushing tow hole 140 is at least two
A, around the setting of hole 424 is injected, also tight loop is sheathed on outside mandril and is reinforcing mandril banding at least two pushing tow holes 140
Outside platform 353.It is more stable that 421 pushing tow of mandril injects plate 420, and due to driving pushing part 351 to rotate when sleeve 370 rotates,
There are multiple mandrils 421 to be uniformly against on pushing part 351,351 uniform force of pushing part rotates more smooth.(in the present embodiment,
Mandril 421 is corresponding six with pushing tow hole 140, and is circumferentially uniformly distributed, but not limited to this.)
Bar 410 is injected across supported hole 130 and injects hole 424, on the inner wall of supported hole 130 and the side wall for injecting bar 410
It is respectively equipped with matched screw thread.It injects first 411 to be located in premix chamber 110, injects first 411 shape and injection canal 221
Inner wall shape matches.Further include having sealing ring, the edge for injecting plate 420 is equipped with groove, and sealing ring is set in groove.Sealing ring
For injecting being sealed when plate moves in premix chamber 110, bone cement can be effectively pushed.Inject the second of bar 410
End is stretched into from the first end of inner cylinder in sliding slot 330 across the second through-hole, first through hole, and bottom plate 360, which can be used for pushing, injects bar
410 second end, the side for injecting 410 second end of bar are equipped with the sliding block 430 of protrusion, and sliding block 430 is slidably mounted to sliding slot 330
It is interior.It injects and is additionally provided with third spring 440 between the second end of bar 410 and bottom plate 360, cushioning effect can be done.
When specific operation, first bone cement powder and water are poured into together in premix chamber 110, mixing cover 530 is covered on pre-
At first opening 120 of mixed cylinder, as shown in figure 18, bone cement powder and water is stirred into bone cement using stirring-head 510, stirred
After good bone cement, mixing cover 530 is removed, lid 210 will be injected and be installed at the first opening 120 of both premix barrel 100, such as Figure 19 institutes
Show：
When the screw thread of 370 inner wall of sleeve is in the screw thread of 100 outer wall of both premix barrel matches region, sleeve is rotated in the forward direction
370, sleeve 370 is moved to the first opening direction of both premix barrel 100, and pushing part 351 injects plate to first by 421 pushing tow of mandril
Be open the movement of 120 directions, and 360 pushing tow of bottom plate is injected bar 410 and moved to the first 120 directions of opening of both premix barrel, and 420 He of plate is injected
First 411 are injected jointly to push bone cement in injection canal 221 from premix chamber 110；
Rotational sleeve 370, when the screw thread of 370 inner wall of sleeve exceeds with the screw thread of 100 outer wall of both premix barrel matches region,
Screw thread in both premix barrel 100 enters in rotation slot 340, when the screw thread in both premix barrel 100 is completely into rotation slot 340, spiral shell
Line is stuck in rotation slot 340, also, bone cement all enters from premix chamber 110 in injection canal 221, and sleeve 370 is not at this time
It will continue to continue to move to the first end of both premix barrel, but sleeve 370 can be rotated relative to both premix barrel；And at this point, injecting
Screw thread on bar 410 enters and the matched range of screw thread on supported hole 130 just；
It is rotated further sleeve 370, the sliding slot 330 in inner cylinder is injected bar 410 by the drive of sliding block 430 and rotated, and bar 410 is injected
Screw thread matched with the screw thread of supported hole 130, inject bar 410 continue to 231 direction of injection orifice move, sliding block 430 exists at this time
Sliding in sliding slot 330, the bone cement injected in first 411 pushing injection canal 221 are injected to from injection orifice 231 in human body.Due to
Bone cement viscosity is high, and the cross section of injection canal 221 is smaller than premix chamber 110, can increase the injection pressure of bone cement, is conducive to behaviour
Make.Also, the cross section of premix chamber 110 is big, facilitates and pours into bone cement powder and water wherein, is also conducive to the stirring of bone cement.
Screw-thread fit between bar 410 and supported hole 130, screw-thread fit between sleeve 370 and both premix barrel 100 are injected, by the rotation of screw thread
Clamp force pushes bone cement, can obtain the pushing force of bigger, is conducive to injection bone cement.
Also, in whole operation, it need to only replace and mixing cover 530 and injection lid 210 are installed in both premix barrel, need not turn
Bone cement is moved, avoids bone cement contaminated, enters human body to bone cement from bone cement is stirred, interval time section prevents bone water
Mud, which is not injected also, just have been solidified, and sufficient operating time can be provided, and is conducive to the progress of operation.After bone cement is stirred,
In the injection bone cement stage, it for operating personnel, only need to continue rotational sleeve 370, can complete bone cement from transversal
The big premix chamber 110 in face move back squeeze into the small injection canal 221 in cross section, by bone cement from injection canal 221 be injected to human body this
Two operations, it is easy to operate.
In the present embodiment, the inner wall of rotational segment and the outer wall of both premix barrel are equipped with matched screw thread, rotation slot set on sleeve
Inner wall；But not limited to this, can also be that the outer wall of rotational segment and the inner wall of both premix barrel are equipped with matched screw thread, rotation slot
Set on the outer wall of sleeve.
Embodiment five
Embodiment five and example IV difference lies in：
Referring to Fig.1 shown in 1,12, agitating shaft 520 is equipped with gear 522, and rack 550 and two are additionally provided on mixing cover 530
Rack bore, rack are installed in rack bore, and rack 550 is engaged with gear 522.When stirring bone cement, moved back in rack bore
Carry-over bar 550 makes rack 550 be rotated with moving gear 522, to drive stirring-head 510 to rotate, is stirred.
Bone cement powder is stirred with water in above example, but not limited to this, other may be used for stirring
The liquid of bone cement powder.
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
Only several embodiments of the present invention are expressed for above example, the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, these are all within the scope of protection of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of bone cement stirring syringe, which is characterized in that including：
Both premix barrel, both premix barrel are equipped with premix chamber, and both premix barrel first end is equipped with the first opening being connected to premix chamber, the premix
The second end of cylinder is equipped with the second opening being connected to premix chamber；
Infusing device, infusing device include injecting bar, and the first end for injecting bar is set in both premix barrel, and are stretched by the second opening
Enter in premix chamber；
Injection head, injection head include the injection lid being connected and injection nozzle, and injection nozzle is equipped with injection orifice, injection cover equipped with
The injection through-hole of injection orifice connection；
Agitating device, including mixing cover, agitating shaft and stirring-head, agitating shaft are rotatably mounted on mixing cover, stirring-head connection
In one end of agitating shaft, the first spring is equipped between agitating shaft and mixing cover；The agitating device further includes having hollow stirring
The inner wall of cylinder, the mixing drum is equipped with helicla flute, and the agitating shaft is installed in the mixing drum, the side of the agitating shaft
It is equipped with convex block, the convex block is installed in the helicla flute, and second spring is equipped between the agitating shaft and mixing drum；It is described
Agitating shaft is equipped with gear, is additionally provided with the rack that can be moved on the mixing cover, the rack is engaged with the gear；
Wherein, when mixing cover is installed on the first opening of both premix barrel, stirring-head is stretched by the first opening in premix chamber；
When injection lid is installed on the first opening of both premix barrel, injection orifice is connected to premix chamber.
2. bone cement stirring syringe according to claim 1, which is characterized in that the second end of the both premix barrel be equipped with
The limit hole of premix chamber connection, the bar of injecting pass through the limit hole, the outer wall for injecting bar interior with the limit hole
The screw thread to match is respectively equipped on wall.
3. bone cement stirring syringe according to claim 1, which is characterized in that the first end for injecting bar is equipped with and pushes away
Head, the head for injecting head forward, towards the premix chamber, head backward, and described is injected in the tail portion for injecting head
Tail portion or side wall be equipped at least two retaining arms, back sweep of the retaining arm to the outside for injecting rostral face.
4. bone cement stirring syringe according to any one of claims 1 to 3, which is characterized in that the infusing device also wraps
It has included and has injected lid, second opening injected lid and be installed on the both premix barrel；
Wherein, the bottom wall for injecting lid is equipped with pusher through-hole, and the second end for injecting bar is stretched across the pusher through-hole
Go out described inject outside lid；
Alternatively, described inject is equipped with axial slideway in lid, the side for injecting bar is equipped with the sliding block of protrusion, and the sliding block is slided
It is installed on dynamicly in the slideway.
5. bone cement stirring syringe according to any one of claims 1 to 3, which is characterized in that the stirring-head includes
Main body is stirred, the stirring main body is installed on the agitating shaft, and the stirring-head further includes having at least one mixing arm, described
The first end of mixing arm is connect with stirring main body, and the second end of the mixing arm is free end.
6. bone cement stirring syringe according to any one of claims 1 to 3, which is characterized in that the stirring-head includes
Main body is stirred, the stirring main body is installed on the agitating shaft, and the stirring-head further includes having at least one paddle, described
Paddle is installed on the side of the stirring main body, and the paddle is equipped with poke hole.
7. bone cement stirring syringe according to claim 6, which is characterized in that the paddle be it is spaced extremely
Two few, the stirring pore radius of one of paddle is more than the stirring pore radius of another paddle.
8. a kind of bone cement stirring syringe, which is characterized in that including：
Both premix barrel, both premix barrel are equipped with premix chamber, and the first end of both premix barrel is equipped with the first opening being connected to premix chamber, both premix barrel
Second end is equipped with the second opening being connected to premix chamber；
Injection head, injection head is interior to be equipped with injection orifice, and injection head is installed on the first opening, and injection orifice is connected to premix chamber；
Agitating device, including mixing cover and stirring-head, the stirring-head are installed on the mixing cover, and the agitating device also wraps
Agitating shaft and hollow mixing drum are included, agitating shaft is rotatably mounted on mixing cover, and stirring-head is connected to one end of agitating shaft, stirs
It mixes and is equipped with the first spring between axis and mixing cover；The inner wall of the mixing drum is equipped with helicla flute, and the agitating shaft is installed on institute
State in mixing drum, the side of the agitating shaft is equipped with convex block, and the convex block is installed in the helicla flute, the agitating shaft with
Second spring is equipped between mixing drum；The agitating shaft is equipped with gear, and the rack that can be moved is additionally provided on the mixing cover,
The rack is engaged with the gear；
Infusing device, infusing device include injecting lid and injecting bar, inject bar and are installed on to inject and cover；
Wherein, when mixing cover is installed on the second end of both premix barrel, stirring-head is stretched by the second opening in premix chamber；
When injecting lid and being installed on the second end of both premix barrel, injects the first end of bar and stretched into premix chamber by the second opening.
9. bone cement stirring syringe according to claim 8, which is characterized in that injection head includes the injection lid being connected
And injection nozzle, injection nozzle are equipped with the injection orifice, injection is covered equipped with the injection through-hole being connected to the injection orifice, injection lid
It is installed on the first opening of both premix barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497012.4A CN105055012B (en) | 2015-08-13 | 2015-08-13 | Bone cement stirring syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497012.4A CN105055012B (en) | 2015-08-13 | 2015-08-13 | Bone cement stirring syringe |
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| Publication Number | Publication Date |
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| CN105055012A CN105055012A (en) | 2015-11-18 |
| CN105055012B true CN105055012B (en) | 2018-09-14 |
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| CN201510497012.4A Active CN105055012B (en) | 2015-08-13 | 2015-08-13 | Bone cement stirring syringe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4015073A1 (en) * | 2020-12-04 | 2022-06-22 | Xelite Biomed Ltd. | Bone cement mixing assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901823B (en) * | 2017-01-22 | 2023-07-25 | 常州百隆微创医疗器械科技有限公司 | Quick pressure release push injection type bone cement filler |
| US10575887B2 (en) * | 2017-08-04 | 2020-03-03 | Medtronic Holding Company Sàrl | Dispensing system and methods of use |
| CN109363762A (en) * | 2018-12-18 | 2019-02-22 | 艾科美医疗器械（深圳）有限公司 | A kind of negative pressure suction type bone cement device for casting and method for filling |
| CN111728745A (en) * | 2020-06-23 | 2020-10-02 | 江苏尚美医疗器械有限公司 | High-precision bone cement filler |
| CN114642492B (en) * | 2022-03-16 | 2024-03-26 | 燕山大学 | Bone cement remote injection device for vertebroplasty |
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| CN105055012A (en) | 2015-11-18 |
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