CN104689425B - Push handle gripping mechanism for the syringe of syringe pump - Google Patents

Push handle gripping mechanism for the syringe of syringe pump Download PDF

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Publication number
CN104689425B
CN104689425B CN201310671832.1A CN201310671832A CN104689425B CN 104689425 B CN104689425 B CN 104689425B CN 201310671832 A CN201310671832 A CN 201310671832A CN 104689425 B CN104689425 B CN 104689425B
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CN
China
Prior art keywords
connecting rod
housing
syringe
push handle
lever
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Active
Application number
CN201310671832.1A
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Chinese (zh)
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CN104689425A (en
Inventor
赵晨
邹海涛
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Shenzhen Comen Medical Instruments Co Ltd
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Shenzhen Comen Medical Instruments Co Ltd
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Priority to CN201310671832.1A priority Critical patent/CN104689425B/en
Priority to PCT/CN2014/093505 priority patent/WO2015085929A1/en
Publication of CN104689425A publication Critical patent/CN104689425A/en
Application granted granted Critical
Publication of CN104689425B publication Critical patent/CN104689425B/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546Front-loading type injectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1458Means for capture of the plunger flange

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A kind of push handle gripping mechanism of syringe for syringe pump, including housing, lever, connecting rod, locating part, elastic component, clamping jaw and button.The middle part of lever is connected with housing into rotation;Connecting rod is slideably arranged in housing, and one end is flexibly connected with one end of lever;Locating part is fixed on connecting rod;Elastic component is sheathed on connecting rod, and the inwall and locating part of the two ends of elastic component respectively with housing offset;Clamping jaw is arranged on housing, and is fixedly connected with the one end of connecting rod away from lever, clamping jaw be engaged with the outer surface of housing can clamping syringe push handle;Button is slideably arranged on housing, and button is in contact with the one end of lever away from connecting rod, and button, slidably to promote lever rotation, and makes connecting rod be slided towards the direction for stretching out housing towards the direction of enclosure interior.The push handle gripping mechanism of the above-mentioned syringe for syringe pump is easy to operate and more.

Description

Push handle gripping mechanism for the syringe of syringe pump
Technical field
The present invention relates to a kind of push handle gripping mechanism of the syringe for syringe pump.
Background technology
At present, domestic each hospital is in clinical vein injection, because the accuracy of ejection of syringe pump and being easy to control, Just progressively promote the use of syringe pump and realize automatic injection.When using syringe pump, the structure mesh at the push handle of mounting of syringe rear end Preceding mainly to have two types on the market, a kind of is fixed structure, blocks push handle by the barb of elasticity, works as mounting of syringe When, it is necessary to first pull open handle, syringe pump is then pressed on the other hand inject on head clutch and drag push rod and move to syringe rear end push handle Syringe push handle is caught in the fixed structure injected on head, neck is put into after adjusting and closes handle by place, another hand, but It is such to need medical worker while using bimanualness, and operation is cumbersome, it is very inconvenient;Another is logical Cross and syringe rear end push handle neighbouring position mutually is framed to the elongated clamping jaw turned, prevent syringe push handle from deviateing push rod, this species Type can use one-handed performance, but such mode of blocking is actually the push rod for framing syringe push handle front end, no Syringe push handle can be directly acted on, it is very dangerous.
The content of the invention
In consideration of it, being necessary to provide the push handle clamping of a kind of easy to operate and safer syringe for syringe pump Device.
A kind of push handle gripping mechanism of syringe for syringe pump, including:
Housing;
Lever, is contained in the housing, and the middle part of the lever is connected with the housing into rotation;
Connecting rod, is slideably arranged in the housing, and one end is flexibly connected with one end of the lever;
Locating part, is contained in the housing, and is fixed on the connecting rod;
Elastic component, is contained in the housing, and is sheathed on the connecting rod, the two ends of the elastic component respectively with it is described The inwall of housing and the locating part offset;
Clamping jaw, is arranged on the housing, and is fixedly connected with the one end of the connecting rod away from the lever, the clamping jaw Be engaged with the outer surface of the housing can clamping syringe push handle;And
Button, is slideably arranged on the housing, the button and one end phase of the lever away from the connecting rod Contact, the button, slidably to promote the lever rotation, and makes the connecting rod towards stretching towards the direction of the enclosure interior Slide in the direction of the housing.
In one of the embodiments, in addition to the fixed base being contained in the housing, offered on the base Through hole, the connecting rod is slideably arranged in the through hole, and the elastic component is contained in the insertion with the locating part In hole, the one end of the elastic component away from the locating part and the side wall of the through hole offset.
In one of the embodiments, in addition to the support set and pivot pin that are contained in the housing, the support set The end face of one end is fixedly connected with the base, and the opposite sides correspondence of the other end of the support set offers guide chute, And the connecting rod is rotationally arranged in the support set, the pivot pin is regularly arranged on the connecting rod, and the pivot pin Along being radially arranged for the connecting rod, the two ends of the pivot pin stretching connecting rod are contained in the opposite sides of the support set respectively Guide chute in, and along the guide chute slidably.
In one of the embodiments, the guide chute has straight trough portion and the helicla flute connected with the straight trough portion Portion, and the straight trough portion sets close to the lever, and the pivot pin stretches out the two ends of the connecting rod respectively along the helicla flute Portion is slided, so as to the link rotatable and be slided towards the direction for stretching out the housing.
In one of the embodiments, in addition to it is contained in the housing and with the lever away from the button The gland that one end is fixedly connected, the one end of the connecting rod away from the clamping jaw is flexibly connected with the gland.
In one of the embodiments, accepting groove, the one end of the connecting rod away from the clamping jaw are offered on the gland Rotationally it is contained in the accepting groove.
In one of the embodiments, in addition to the bearing that is contained in the accepting groove, the bearing holder (housing, cover) is located at described The one end of connecting rod away from the clamping jaw, and be interference fitted with the connecting rod.
In one of the embodiments, one end of the connecting rod forms necking part, and the bearing holder (housing, cover) is located at the necking part On, and be interference fitted with the necking part.
In one of the embodiments, in addition to axle sleeve, the axle sleeve is arranged in the through hole, and with the through hole Side wall be fixedly connected, the connecting rod is slideably arranged in the axle sleeve, and the connecting rod is rotatable in the axle sleeve.
In one of the embodiments, the cylindricality fixed part led to during the clamping jaw includes and side and the cylindricality fixed part The holding piece being fixedly connected, the one end of the connecting rod away from the lever is regularly arranged in the cylindricality fixed part, the folder Hold piece be engaged with the outer surface of housing can syringe described in clamping push handle.
The push handle gripping mechanism of the above-mentioned syringe for syringe pump include housing, lever, connecting rod, locating part, elastic component, Clamping jaw and button, because button is in contact with one end of lever, press button, make it slide to promote towards the direction of enclosure interior Lever rotation, and the direction for pushing connecting rod towards stretching housing is slided, and make the clamping jaw being fixedly connected with connecting rod towards away from housing Direction slide, the push handle of syringe can be positioned on housing, release button, connecting rod is in the presence of elastic component, connecting rod court The direction of the inside of housing is slided, and drives clamping jaw to be slided towards the direction close to housing, so that the push handle of syringe is clamped on Between clamping jaw and the outer surface of housing, because clamping jaw is directly to be pressed in the push handle of syringe, can more firmly it block It is safer in the push handle of tight syringe, it is to avoid the risk that syringe comes off;And everything is only needed to by one hand pressing Button can be just the installation and dismounting for realizing syringe, easy to operate.
Brief description of the drawings
Fig. 1 is the structural representation of the push handle gripping mechanism of the syringe for syringe pump of an embodiment;
Fig. 2 is that the push handle gripping mechanism of the syringe for syringe pump shown in Fig. 1 eliminates another angle of housing Structural representation;
Fig. 3 is another angle for eliminating housing of the push handle gripping mechanism of the syringe for syringe pump shown in Fig. 1 Structural representation;
Fig. 4 is profiles of the Fig. 3 along line B-B.
Embodiment
The push handle gripping mechanism of the syringe for syringe pump is made into one mainly in combination with drawings and the specific embodiments below Step detailed description.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, the push handle gripping mechanism of the syringe for syringe pump of an embodiment 100 include housing 110, lever 120, connecting rod 130, locating part 140, elastic component 150, clamping jaw 160 and button 170.
Housing 110 is generally rectangular shaped housing.Specifically, the end of one end of housing 110 forms fluted 112.
Lever 120 is contained in housing 110, and the middle part of lever 120 is rotated with housing 110 to be connected.Lever 120 is substantially long Bar shaped is shaft-like.
Connecting rod 130 is that strip is shaft-like.Connecting rod 130 is slideably arranged in housing 110, and one end and the one of lever 120 End is flexibly connected.Specifically, one end of connecting rod 130 forms necking part 132.Shell is stretched out in the one end of connecting rod 130 away from necking part 132 Body 110.
Locating part 140 is contained in housing 110, and is fixed on connecting rod 130.Specifically, locating part 140 is snap ring, card Ring fixed cover is on connecting rod 130.It is appreciated that locating part 140 can also be the projection on connecting rod 130.
Elastic component 150 is contained in housing 110, and is sheathed on connecting rod 130, the two ends of elastic component 150 respectively with housing 110 inwall and locating part 140 offsets, so as to provide an elastic-restoring force to connecting rod 130.In the particular embodiment, bullet Property part 150 be spring.It is appreciated that elastic component 150 can also be resilient sleeve.
Clamping jaw 160 is arranged on housing 110, and is fixedly connected with the one end of connecting rod 130 away from lever 120, clamping jaw 160 with The outer surface of housing 110 is engaged can clamping syringe(It is not shown)Push handle(It is not shown).Specifically, during clamping jaw 160 includes The holding piece 164 that logical cylindricality fixed part 162 and one end is fixedly connected with cylindricality fixed part 162.Wherein, connecting rod 130 is away from thick stick One end of bar 120 is regularly arranged in cylindricality fixed part 162, and holding piece 164 is engaged with the outer surface of housing 110 can clamping note The push handle of emitter.Gradually increase specifically, the width of holding piece 164 passes through.And connecting rod 130 is away from lever 120 One end be fixedly connected with the less one end of the width of holding piece 164 so that the larger one end of width press against the push handle of syringe, So as to add the contact area between clamping jaw 160 and the push handle of syringe so that the push handle of syringe can be more securely It is clamped on housing 110, reduce further the risk that skew of the syringe push handle in injection process comes off, more pacify Entirely.When being also equipped with level detecting apparatus on syringe pump(It is not shown)When, the detection of clamping jaw 160 close to level detecting apparatus is pressed Button 400 is set, and the end face of the push handle of syringe is in place in the detection button 400 of detection means, now, clamping jaw 160 The push handle of syringe is compressed, detection syringe can also be easy to whether in place.
Further, clamping jaw 160 is two, and connecting rod 130, locating part 140 and elastic component 150 correspond to two, two Connecting rod 130 is be arranged in parallel, and two one end of connecting rod 130 away from clamping jaw 160 are lived with the one end of lever 120 away from button 170 Dynamic connection.Two clamping jaws 160 are capable of the push handle of clamping syringe more securely.
Button 170 is slideably arranged on housing 110, and button 170 connects with the one end of lever 120 away from connecting rod 130 Touch, button 170 towards direction housing 110 inside slidably to promote lever 120 to rotate, and make connecting rod 130 towards stretching housing 110 Direction slide.Specifically, button 170 is slidably disposed in groove 112.
Referring to Fig. 2, Fig. 3 and Fig. 4, further, the push handle gripping mechanism 100 for the syringe of syringe pump is gone back Including the fixed base 180 being contained in housing 110.Wherein, through hole 182 is offered on base 180, connecting rod 130 is slidably Ground is arranged in through hole 182, and elastic component 150 is contained in through hole 182 with locating part 140, and elastic component 150 is away from locating part 140 one end and the side wall of through hole 182 offset.Specifically, two relative surfaces of the insertion base 180 of through hole 182.More Specifically, through hole 182 has resettlement section 184 and the shrinkage cavity portion 186 connected with resettlement section 184, and the aperture of resettlement section 184 is big Aperture in shrinkage cavity portion 186, so as to have position-limiting action to connecting rod 130.Wherein, locating part 140 is contained in elastic component 150 In appearance portion 184.
Further, the push handle gripping mechanism 100 for the syringe of syringe pump also includes the branch being contained in housing 110 Support set 190 and pivot pin 210, the end face of one end of support set 190 are fixedly connected with base 180, the phase of the other end of support set 190 Guide chute 192 is offered to both sides correspondence, and connecting rod 130 is rotationally arranged in support set 190, pivot pin 210 is regularly worn On connecting rod 130, and being radially arranged along connecting rod 130 of pivot pin 210, the two ends that pivot pin 210 stretches out connecting rod 130 are contained in respectively In the guide chute 192 of the opposite sides of support set 190, and along guide chute 192 slidably.Specifically, support set 190 includes In lead to cylinder portion(Figure is not marked)And lead to the flange that the edge of the one end in cylinder portion is set in(Figure is not marked).Wherein, flange and base 180 It is fixedly connected.More specifically, guide chute 192 has straight trough portion 194 and the helical groove portion 196 connected with straight trough portion 194, and Straight trough portion 194 is set close to lever 120, and the two ends that pivot pin 210 stretches out connecting rod 130 are slided along helical groove portion 196 respectively, so that even Bar 130 is rotated and slided towards the direction for stretching out housing 110.When pressing button 170, the two ends of pivot pin 210 are along support set 190 The guide chute 192 of opposite sides is slided, and is first slided along straight trough portion 194, and connecting rod 130 is slided towards the direction for stretching out housing 110, folder Pawl 160 moves along a straight line towards the direction away from housing 110, is then slided in helical groove portion 196, and connecting rod 130 continues towards stretching housing 110 direction rotates while slip, and drives clamping jaw 160 to continue towards while the direction movement of remote housing 110 Rotate, the one end of the holding piece 164 of clamping jaw 160 away from cylindricality fixed part 162 is deviateed clamping zone, be so easy to note The placement of emitter;When release button 170, under the elastic-restoring force effect of elastic component 150, pivot pin 210 is first along helical groove portion 196 slide, and connecting rod 130 rotates while slip towards the direction of retraction housing 110, and clamping jaw 160 continues towards close to housing 110 direction movement while rotate, until the one end of holding piece 164 away from cylindricality fixed part 162 be rotated in place in The top of clamping zone, then pivot pin 210 slided again along straight trough portion 194, connecting rod 130 continues towards being retracted into the direction of housing 110 Slide, clamping jaw 160 continues to move along a straight line towards the direction close to housing 110, and the push handle of syringe finally is clamped on into housing 110 On.It is arranged to by being directed to chute 210 with 196 two parts in straight trough portion 194 and helical groove portion, and straight trough portion 194 is leaned on Nearly lever 120 is set so that when clamping jaw 160 is close to the direction movement of housing 110, retracting motion of first spinning is treated close to injection When the push handle of device, make straight line retracting motion, the push handle of syringe is finally compressed, so as to prevent syringe in installation process In skew risk.It is appreciated that guide chute 192 can set only straight trough or the only form of helicla flute.
Further, the push handle gripping mechanism 100 for the syringe of syringe pump also include being contained in housing 110 and The gland 220 being fixedly connected with the one end of lever 120 away from button 170, the one end of connecting rod 130 away from clamping jaw 160 and gland 220 It is flexibly connected.In the particular embodiment, the one end of lever 120 away from button 170 is rotatably fixed with gland 220 is connected. It is connected specifically, the one end of lever 120 away from button 170 is realized to be rotatably fixed with gland 220 by a pivot pin.Specifically , accepting groove 222 is offered on gland 220, the one end of connecting rod 130 away from clamping jaw 160 is rotationally contained in accepting groove 222 It is interior.Specifically, the substantially concave shape of accepting groove 220.The substantially strip tabular of gland 220.
Further, the push handle gripping mechanism 100 for the syringe of syringe pump also includes the collecting for being contained in gland 220 Bearing 230 in groove 222, bearing 230 is sheathed on the one end of connecting rod 130 away from clamping jaw 160, and is interference fitted with connecting rod 130, Bearing 230 is arranged on connecting rod 130 is easy to connecting rod 130 to rotate.Specifically, the outer ring of bearing 230 and the inwall of accepting groove 222 are consolidated Fixed, inner ring and the connecting rod 130 of bearing 230 are interference fitted.In the particular embodiment, bearing 230 is sheathed on the necking down of connecting rod 130 In portion 132, and it is interference fitted with necking part 132.Bearing 230, which is set on the necking part 132 of connecting rod 130, can prevent bearing 230 slide on connecting rod 130.
Further, the push handle gripping mechanism 100 for the syringe of syringe pump also includes axle sleeve 240, and axle sleeve 240 is worn It is fixedly connected in through hole 182, and with the side wall of through hole 182, connecting rod 130 is slideably arranged in axle sleeve 240, and connecting rod 130 is rotatable in axle sleeve 240.Axle sleeve 240 has lubricant effect, can be compared with rubbing that small rod 130 is subject in motion process Wipe power.It is appreciated that axle sleeve 240 can not be used to reduce the frictional force of connecting rod 130 and base 180, now, base 180 is used Material with lubrication.
In the particular embodiment, connecting rod 130 is two, and accepting groove 222 is also two, and two intervals of accepting groove 222 are set Put at the two ends of gland 220, the one end of lever 120 away from button 170 is fixedly connected with the middle part of gland 220, now, bearing 230th, axle sleeve 240 is corresponding two, and the through hole 182 on base 180 corresponds to two.
Referring to Fig. 2, further, the push handle gripping mechanism 100 for the syringe of syringe pump also includes being contained in shell Rotating bar 250 in body 110, the middle part of rotating bar 250 is rotated with housing 110 to be connected, the opposite sides of one end of rotating bar 250 It is in contact respectively with the one end of button 170 and lever 120 away from gland 220.Wherein, the length of rotating bar 250 is more than lever 120 Length.Specifically, the other end and syringe pump of rotating bar 250(Figure is not marked)Push-rod assembly control handle(Figure is not marked)Connect Touch, by pressing button 170, while making the promotion rotation of lever 120 of rotating bar 250, the other end of rotating bar 250 promotes push rod Component control handle, makes push-rod assembly(Figure is not marked)In nut(It is not shown)With screw mandrel(It is not shown)Depart from, make whole for noting Penetrating the push handle gripping mechanism 100 of the syringe of pump can move along push rod.More specifically, rotating bar 250 away from button 170 one End is provided with roller(Figure is not marked), roller is in contact with push-rod assembly control handle.Specifically, rotating bar 250 is provided with projection 252, Projection 252 is in contact with the one end of lever 120 away from gland 220.
Further, the push handle gripping mechanism 100 for the syringe of syringe pump also includes the rolling being contained in housing 110 Wheel 260, roller 260 is fixed on the one end of lever 120 away from gland 220, side of the rotating bar 250 away from button and roller 260 It is in contact, lever 120 is rotated by the thrust roller 260 of rotating bar 250.
The push handle gripping mechanism 100 of the above-mentioned syringe for syringe pump includes housing 110, lever 120, connecting rod 130, limit Position part 140, elastic component 150, clamping jaw 160 and button 170, because button 170 is in contact with one end of lever 120, press button 170, make it slide to promote lever 120 to rotate towards the direction inside housing 110, and make to push connecting rod 130 towards stretching housing 110 Direction slide, and the clamping jaw 160 that is fixedly connected with connecting rod 130 is slided towards the direction away from housing 110, can be by syringe Push handle is positioned on housing 110, release button 170, and connecting rod 130 is in the presence of elastic component 150, and connecting rod 130 is towards housing 110 Internal direction is slided, and drives clamping jaw 160 to be slided towards the direction close to housing 110, so that the push handle of syringe is clamped on , can be more because clamping jaw 160 is directly to be pressed in the push handle of syringe between the outer surface of clamping jaw 160 and housing 110 It is safer in the push handle of firm clamping syringe, it is to avoid the risk that syringe comes off;And everything only needs to pass through One hand pressing button 170 can be just the installation and dismounting for realizing syringe, easy to operate.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (9)

1. a kind of push handle gripping mechanism of syringe for syringe pump, it is characterised in that including:
Housing;
Lever, is contained in the housing, and the middle part of the lever is connected with the housing into rotation;
Connecting rod, is slideably arranged in the housing, and one end is flexibly connected with one end of the lever;
Locating part, is contained in the housing, and is fixed on the connecting rod;
Through hole is offered on the fixed base being contained in the housing, the base, the connecting rod is slideably arranged in The through hole;
Elastic component, is contained in the housing, and is sheathed on the connecting rod, and the elastic component is housed with the locating part In in the through hole, one end of the elastic component offsets with the locating part, the side wall phase of the other end and the through hole Support;
Clamping jaw, is arranged on the housing, and is fixedly connected with the one end of the connecting rod away from the lever, the clamping jaw and institute State housing outer surface be engaged can clamping syringe push handle;And
Button, is slideably arranged on the housing, and the button is in contact with the one end of the lever away from the connecting rod, The button is slided towards the direction of the enclosure interior to promote the lever rotation, and makes the connecting rod towards the stretching housing Direction slide.
2. the push handle gripping mechanism of the syringe according to claim 1 for syringe pump, it is characterised in that also including receiving Support set and pivot pin in the housing are dissolved in, the end face of one end of the support set is fixedly connected with the base, the branch The opposite sides correspondence of the other end of support set offers guide chute, and the connecting rod is rotationally arranged in the support set, The pivot pin is regularly arranged on the connecting rod, and the pivot pin being radially arranged along the connecting rod, and the pivot pin stretches out institute The two ends for stating connecting rod are contained in the guide chute of the opposite sides of the support set respectively, and can be slided along the guide chute It is dynamic.
3. the push handle gripping mechanism of the syringe according to claim 2 for syringe pump, it is characterised in that the guiding Chute has straight trough portion and the helical groove portion connected with the straight trough portion, and the straight trough portion is set close to the lever, institute State pivot pin and stretch out the two ends of the connecting rod and slided respectively along the helical groove portion, so that the link rotatable and towards stretching out the shell Slide in the direction of body.
4. the push handle gripping mechanism of the syringe according to claim 3 for syringe pump, it is characterised in that also including receiving The gland being fixedly connected in the housing and with the one end of the lever away from the button is dissolved in, the connecting rod is away from described One end of clamping jaw is flexibly connected with the gland.
5. the push handle gripping mechanism of the syringe according to claim 4 for syringe pump, it is characterised in that the gland On offer accepting groove, the one end of the connecting rod away from the clamping jaw is rotationally contained in the accepting groove.
6. the push handle gripping mechanism of the syringe according to claim 5 for syringe pump, it is characterised in that also including receiving Be dissolved in the bearing in the accepting groove, the bearing holder (housing, cover) is located at the one end of the connecting rod away from the clamping jaw, and with the connecting rod Interference fit.
7. the push handle gripping mechanism of the syringe according to claim 6 for syringe pump, it is characterised in that the connecting rod One end form necking part, the bearing holder (housing, cover) is interference fitted on the necking part, and with the necking part.
8. the push handle gripping mechanism of the syringe according to claim 3 for syringe pump, it is characterised in that also including axle Set, the axle sleeve is arranged in the through hole, and is fixedly connected with the side wall of the through hole, and the connecting rod is slideably worn In the axle sleeve, and the connecting rod is rotatable in the axle sleeve.
9. the push handle gripping mechanism of the syringe according to claim 1 for syringe pump, it is characterised in that the clamping jaw The holding piece that the cylindricality fixed part and side led to including in is fixedly connected with the cylindricality fixed part, the connecting rod is away from the thick stick One end of bar is regularly arranged in the cylindricality fixed part, and the holding piece is engaged with the outer surface of housing to be noted described in clamping The push handle of emitter.
CN201310671832.1A 2013-12-10 2013-12-10 Push handle gripping mechanism for the syringe of syringe pump Active CN104689425B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201310671832.1A CN104689425B (en) 2013-12-10 2013-12-10 Push handle gripping mechanism for the syringe of syringe pump
PCT/CN2014/093505 WO2015085929A1 (en) 2013-12-10 2014-12-10 Syringe plunger clamping device for syringe pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310671832.1A CN104689425B (en) 2013-12-10 2013-12-10 Push handle gripping mechanism for the syringe of syringe pump

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CN104689425A CN104689425A (en) 2015-06-10
CN104689425B true CN104689425B (en) 2017-09-12

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WO (1) WO2015085929A1 (en)

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