CN104225727B - A kind of integrated Y-type three way type injector for medical purpose - Google Patents
A kind of integrated Y-type three way type injector for medical purpose Download PDFInfo
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- CN104225727B CN104225727B CN201410557154.0A CN201410557154A CN104225727B CN 104225727 B CN104225727 B CN 104225727B CN 201410557154 A CN201410557154 A CN 201410557154A CN 104225727 B CN104225727 B CN 104225727B
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Abstract
The invention discloses a kind of integrated Y-type three way type injector for medical purpose, including cylinder, piston rod and syringe needle, cylinder is set to semicircle shape fluid cartridge, the planar side outer wall of semicircle shape fluid cartridge is connected with the supporter of half-surrounded, pre-filled syringe fluid cartridge has been caught in the supporter of half-surrounded, semicircle shape fluid cartridge circular arc side-wall outer side is connected with rail plate pedestal, piston rod is installed in semicircle shape fluid cartridge, piston rod is made up of inner piston rod and outer piston bar integral type, inner piston rod and outer piston bar difference are corresponding in semicircle shape fluid cartridge cavity and guide groove, cylinder upper end is connected with Y-shaped three-way pipe, the stop,threeway switch of activity is installed in Y-shaped three-way pipe, Y-shaped three-way pipe top is connected with syringe needle.The technology has used Y-type three way type compared with prior art so that it is simpler and safe to switch over operation, single-hand handling ＆ pin injection can also be carried out, and Y-shaped three-way pipe caliber is smaller, so as to improve the utilization rate of medicine.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of integrated Y-type three way type injector for medical purpose.
Background technology
Known precharging type syringe be it is a kind of by medicine in advance it is filling in syringe so as to the Medical Devices directly used,
It is during World War II, in order to meet battlefield hospital to live aseptic medical the need for and occur, its appearance
It can effectively prevent from injecting the pollution in medicine preparation, mixed process, and the utilization rate of medicine can be effectively improved, save medicine from life
Produce artificial and cost spent in use.What is used on current medicinal is generally T-shaped three-way pipe syringe, and its three connect
Mouth is in the distribution of 90 degree of interval, the problem of having following for traditional T-shaped three-way pipe syringe：First, T-shaped three-way pipe injection
Device needs more complicated operation for the switching between the independent liquid path of two-way, and it is not suitable for the injecting systems of single-hand handling ＆ pin
Operation；Second, syringe caliber is thicker, and residual dose can be caused larger, so that can waste of resource；3rd, when pharmaceutical preparation has
During certain viscosity, pumpback inconvenience can be caused, be that patient medication has buried severe compromise, and active drug can be limited
Clinical practice, such as when in shaping and beauty field, wherein hyaluronic acid is good because its specific biological and physical characteristic has
Good moulding cosmetic result, is with a wide range of applications, but its thick matter colloid can cause precharging type syringe in Clinical practice
During can not effectively pumpback, and once by hyaluronic acid by mistake injection blood vessel, blood vessel embolism can be caused, so that ischemic will be caused
Neural paralysis, cutaneous necrosis, blindness etc., serious will threat to life.
The content of the invention
In order to overcome the weak point of the precharging type syringe under prior art, use and more pacify the invention provides one kind
Complete reliable, the simpler convenience of one-handed performance and the integrated Y-type three way type injector for medical purpose for improving utilization ratio of drug.
To achieve these goals, the technical solution used in the present invention is：
A kind of integrated Y-type three way type injector for medical purpose, including cylinder, piston rod and syringe needle, cylinder are set to semicircle shape fluid
Cylinder, semicircle shape fluid cartridge is hollow barrel structure, the assembling for the inner piston rod that the hollow of semicircle shape fluid cartridge is used in piston rod,
Semicircle shape fluid cartridge lower port madial wall sets raised band, and raised band is conducive to preventing the inner piston rod in piston rod in slip
Semicircle shape fluid cartridge is surprisingly exited, the planar side outer wall of semicircle shape fluid cartridge is connected with the supporter of half-surrounded, supports side
Leaving certain gaps uncovered by the economic plan between wall, provided with the gusset that four roads are equidistant, the supporter of half-surrounded on the vertical plane in supporter inside sidewalls face
In be caught in pre-filled syringe fluid cartridge, pre-filled syringe fluid cartridge be provided with pre-filled syringe piston rod, semicircle shape
Fluid cartridge circular arc side-wall outer side is connected with to be provided with the rail plate pedestal parallel with semicircle shape fluid cartridge, rail plate pedestal and led
Track slot, guide groove cross section is in inverted T-shaped, and guide rail slot length is less than barrel lenght, the design limiting of inverted T-shaped guide groove piston
The unicity in bar China and foreign countries piston rod movement direction, improves the handling and structural stability of outer piston bar, semicircle shape fluid cartridge
In piston rod is installed, piston rod is made up of inner piston rod and outer piston bar integral type, and inner piston rod and outer piston bar are right respectively
That answers is arranged in semicircle shape fluid cartridge cavity and guide groove, and pre-filled syringe fluid cartridge is caught in after supporter by operator,
Body sidewall is supported to pre-filled syringe fluid cartridge formation semi-surrounding, and forming bayonet socket prevents pre-filled syringe fluid cartridge from deviating from
Breach, the supporting construction of semi-surrounding makes pre-filled syringe fluid cartridge install rear and semicircle shape fluid cartridge one one of formation
The class cylindrical-shaped structure of change, for the injecting systems with Dual-fluid channel, with good ergonomic designs,
Cylinder upper end is connected with Y-shaped three-way pipe, and Y-shaped three-way pipe is included under the outer cone locked joints on threeway cylinder top, threeway cylinder
Portion is provided with the piston switch pipeline in the middle of inner circle taper joint, triple cylinder side bent sub and threeway cylinder, piston switch pipeline
The stop,threeway for being plugged with activity is switched, and the center line of the outer cone locked joints on top and the inner circle taper joint of bottom is overlapped,
Pre-filled syringe fluid cartridge is provided with pre-filled syringe fluid cartridge joint, and pre-filled syringe fluid cartridge joint connects with lateral bending
Head connection, semicircle shape fluid cartridge is provided with pumping joint, and pumping joint is connected with inner circle taper joint, the connection of outer cone locked joints
There is syringe needle.
The breach distance is slightly less than pre-filled syringe fluid cartridge diameter, can fix prefilled injection by buckle very well
Device fluid cartridge.
The cylinder bottom surface is connected with the dactylostyle of rhombus tabular, and dactylostyle (is distally directed to perpendicular to cylinder, dactylostyle from distal end
Receive injection patient body direction) to near-end (near-end be directed to away from injection patient body direction) be provided with distal slot
Hole, middle slotted eye and near-end slotted eye, distal end slotted eye, middle slotted eye and near-end slotted eye internal diameter are differed, distal end slotted eye, medial launder
The aperture and thickness of hole and near-end slotted eye are more than the external diameter and thickness of pre-filled syringe fluid cartridge lower surface evagination annular shirt rim,
The annular shirt rim structure for making it be enough to accommodate filling syringe fluid cylinder lower surface evagination when mounted, distal end slotted eye and supporter
In a gusset combine together so that distal end slotted eye with two support body sidewalls between leaving certain gaps uncovered by the economic plan distance and supporter in
Gusset breach is consistent, and near-end slotted eye is the slotted eye of shape such as character cut in bas-relief, and near-end slotted eye is cut slightly larger than pre-filled syringe piston rod
Face size, enable pre-filled syringe piston rod in the supporter of its half-surrounded slidably, and limited swivel, locking
Syringe fluid cylinder lower surface evagination annular shirt rim is filled, so as to be conducive to prevention to install rear pre-filled syringe fluid cartridge
By the displacement of distal end proximally.When operator installs pre-filled syringe fluid cartridge to supporter, it should be noted that pre-fill is filled
The angle that emitter piston rod is adjusted to not conflict mutually when using with piston rod push handle is defined.
The piston rod is made up of inner piston rod and outer piston bar and the push handle integral type of trapezoidal tabular, inner piston rod distal end
Face is semicircle piston plate, semicircle piston plate and semicircle shape fluid cartridge inner chamber mates, and inner piston rod is two and hung down mutually
Straight to be constituted into the different wide gusset of cross, width and narrow gusset, cross searching is overlapped with the geometric center of semicircle piston plate, wide
The plate face of gusset is parallel with the straight flange of semicircle piston plate, and the width of wide gusset plate face is slightly less than width on semicircle piston plate,
The width of narrow gusset plate face is also slightly less than semicircle piston plate width, and the length of inner piston rod is more than the length of semicircle fluid cartridge
Degree, specific outer piston bar is an arc, and its outer piston bar and the distance of inner piston rod and direction should be guide groove and semicircle
The distance of shape fluid cartridge cavity and direction are consistent, and transverse direction of the upper end lateral surface provided with parallel array of outer piston bar is anti-skidding convex
Stringer raised line is provided with the middle part of bar, outer piston bar medial surface, stringer raised line upper end is provided with T-shaped projection, and the length of outer piston bar is small
In inner piston rod length, the width of outer piston bar is identical with guide rail well width, short side side and the outer piston bar of trapezoidal tabular push handle
Lower end links together, and the long side of trapezoidal tabular push handle is concordant with the narrow gusset face edge of inner piston rod, on the inside of outer piston bar
In stringer raised line and T-shaped projection the insertion guide groove in face, operator can be by controlling inner carrier push handle or outer piston push handle to make
Movement of the piston rod in semicircle fluid cartridge intracavitary smoothly, this design make piston rod compared with normal injection push rod have more one it is extra
Position is manipulated, operator is allowed when being hold by one hand integrated drawing out and infusion device, is realized simultaneously using single gesture and is extracted and inject
Two kinds of functions, maintain the stability of operation.
The outer cone locked joints and inner circle taper joint are 6% female Luer of standard.
Y-shaped three-way pipe two ends caliber, which is slightly larger than on middle caliber, Y-shaped three-way pipe side inwall, to be distributed with and piston
The parallel raised line of pipeline transverse axis is switched, the opposite side inwall of Y-shaped three-way pipe is provided with the ring-type concentric with piston switch pipeline
Raised line, outer cone locked joints are externally provided with tapped collar, and lateral bending joint lower end is an inner circle wimble interface, inner circle wimble interface
Arranged in parallel with inner circle taper joint, lateral bending joint lower surface is concordant with inner circle taper joint lower surface, and lateral bending upper end of joint is bending
Into elliptic cylindrical shape structure, and lateral bending upper end of joint is connected to the outer wall of Y-shaped three-way pipe, the lateral bending connector center of elliptic cylindrical shape structure
The central shaft that axle is overlapped with outer cone locked joints and inner circle taper joint is into 60 degree of angles, and the central shaft and outer cone of lateral bending joint
The central shaft that locked joints and inner circle taper joint are overlapped intersects with piston switch pipeline transverse axis, and the lateral bending of elliptic cylindrical shape structure connects
The entrance hole three along elliptic cylindrical shape structure side bent sub axis insertion is provided with inside head upper end, makes the inner circle of lateral bending joint bottom
Cone cavity and inner barrel communicate, between the female cone of inner circle taper joint and lateral bending joint bottom wheelbase should be fit to be provided with it is pre-
Fill the wheelbase between syringe fluid cylinder joint and pumping joint.
The stop,threeway switch includes the handle plate and switching cylinder of drops, and handle plate center is provided with through hole, handle
Plate surface indicates pipeline communication direction signs, and handle plate upper and lower side is provided with the tread plate of array, and the bottom surface of handle plate, which is fixed, to be connected
Switching cylinder is connected to, switching drum diameter is identical with the through-hole diameter in handle plate, and switching outside diameter of cylinder is switched with stop,threeway
Internal diameter of the pipeline matches, provided with the trident pipeline that interconnects in switching cylinder, the opening of trident pipeline respectively with threeway cylinder
Outer cone locked joints, the inner circle taper joint of threeway cylinder bottom and the triple cylinder side bent sub on top are conducted, switching circle
The lower surface lateral wall of cylinder is provided with annular groove, and handle plate bottom surface is close to switching cylinder lateral wall and is provided with symmetrical projection, right
Claim projection to switch with stop,threeway to set on the ring rib cooperation locking of the madial wall relevant position of pipeline, switching cylinder lateral wall
It is fluted, the groove totally four, texturearunaperpendicular is in the handle plate bottom surface, and groove is in be symmetrically distributed in switching cylinder two-by-two
On outer wall, one pair of which groove is located on the long axis of handle plate, another pair groove center line line and handle plate long axis into
30 degree of angles.
Beneficial effects of the present invention：The invention provides the one that can agree with current a variety of main flow specification pre-filled syringes
Change medical Y-shaped threeway drawing out and infusion device, in medical injection procedure, by controlling stop,threeway switch switching prefilled drug to inject
Device or the independent liquid path of pumping system two, realize pumpback to judge that syringe needle enters position after body, greatly improve some
Security during medicine pre-filled syringe Clinical practice, and it is more T-shaped than what is commonly used for the switching between independent liquid path
Three-way pipe operation is simpler, more facilitates for the operation of single-hand handling ＆ pin；Y-type three way type pipeline of the present invention uses pipe with small pipe diameter, so that
Improve the utilization rate of precious medicine in pre-filled syringe, it is to avoid waste.
Brief description of the drawings
Fig. 1 is decomposing schematic representation of the present invention；
Fig. 2 is cylinder schematic diagram of the present invention；
Fig. 3 is figure cylinder front view of the present invention；
Fig. 4 is along A-A directions sectional view at Fig. 3 of the present invention；
Fig. 5 is B-B directions sectional view at Fig. 4 of the present invention；
Fig. 6 is piston rod construction schematic diagram of the invention；
Fig. 7 is Fig. 6 overlook directions schematic diagram of the present invention；
Fig. 8 is Y-shaped three-way pipe schematic diagram of the present invention；
Fig. 9 is to be of the invention along C-C sectional views at Fig. 8；
Figure 10 is that stop,threeway of the present invention switchs schematic diagram；
Figure 11 is to be of the invention along D-D directions sectional view at Figure 10；
Figure 12 is that stop,threeway of the present invention switchs front view；
Figure 13 is Y-shaped three-way pipe lateral bending joint conducting schematic of the present invention；
Figure 14 is to be of the invention along E-E sectional views at Figure 13；
Figure 15 is inner circle taper joint conducting schematic in Y-shaped three-way pipe bottom of the present invention；
Figure 16 is the overall assembling schematic diagram of the present invention；
Figure 17 is the overall main view direction schematic diagram of the present invention；
Figure 18 is to be of the invention along F-F sectional views at Figure 17；
Figure 19 is to be of the invention along G-G sectional views at Figure 18.
Label implication in figure is：100, cylinder；101, semicircle shape fluid cartridge；102, pumping joint；103, supporter；
104, dactylostyle；105, side wall；106, planar side outer wall；107, circular arc side wall；110, gusset one；111, gusset two；112, muscle
Plate three；113, gusset four；114, rail plate substrate；115, guide groove；116, near-end slotted eye；117, middle slotted eye；118, it is convex
Play band；200, piston rod；201, inner piston rod；202, outer piston bar；203, push handle；204, semicircle piston plate；205, it is anti-skidding
Raised line；206, stringer raised line；207, T-shaped projection；300, Y-shaped three-way pipe；301, cylinder；302, outer cone locked joints；303,
Inner circle taper joint；304, lateral bending joint；305, raised line；306, ring-type raised line；307, collar；308, entrance hole one；309, import
Hole two；310, entrance hole three；400, stop,threeway switch；401, handle plate；402, cylinder of transferring；403, trident pipeline；404,
Direction signs；405, tread plate；406, annular groove；407, symmetrical projection；408, groove；409, through hole；410, opening one；
411, opening two；412, opening three.
Embodiment
As shown in figure 1, a kind of integrated Y-type three way type injector for medical purpose, including cylinder 100, piston rod 200 and syringe needle, cylinder
Body 100 is set to semicircle shape fluid cartridge 101, and semicircle shape fluid cartridge 101 is hollow barrel structure, the hollow of semicircle shape fluid cartridge 101
For the assembling of the inner piston rod 201 in piston rod 200, the lower port madial wall of semicircle shape fluid cartridge 101 sets raised band 118,
Raised band 118 is conducive to preventing the inner piston rod 201 in piston rod 200 from exiting semicircle shape fluid cartridge 101 outside slip is favorite, half
The planar side outer wall 106 of round shape fluid cartridge 101 be connected between the supporter 103 of half-surrounded, the side wall of supporter 103 leave it is scarce
Mouthful, provided with the gusset that four roads are equidistant on the vertical plane in the inside sidewalls face of supporter 103, it is caught in the supporter 103 of half-surrounded
Have and pre-filled syringe piston rod, semicircle shape fluid cartridge are provided with pre-filled syringe fluid cartridge, pre-filled syringe fluid cartridge
The outside of circular arc side wall 107 is connected with the rail plate pedestal 114 parallel with semicircle shape fluid cartridge 101, rail plate pedestal 114
Guide groove 115 is provided with, the cross section of guide groove 15 is in inverted T-shaped, and the length of guide groove 115 is less than the length of cylinder 100, inverted T-shaped guide rail
The design limiting of groove 115 unicity of the direction of motion of 200 China and foreign countries' piston rod of piston rod 202, improves the behaviour of outer piston bar 202
Piston rod 200 is installed, piston rod 200 is by inner piston rod 201 and outside in control property and structural stability, semicircle shape fluid cartridge 101
The integral type of piston rod 202 is constituted, and inner piston rod 201 and outer piston bar 202 distinguish corresponding installed in the chamber of semicircle shape fluid cartridge 101
In body and guide groove 15, pre-filled syringe fluid cartridge is caught in after supporter 103 by operator, and the side wall of supporter 103 is to pre-fill
Emitter fluid cartridge formation semi-surrounding is filled, and forming bayonet socket prevents pre-filled syringe fluid cartridge from deviating from breach, the branch of semi-surrounding
It is cylindric with one integrated class of the formation of semicircle shape fluid cartridge 101 afterwards that support structure installs pre-filled syringe fluid cartridge
Structure, for the injecting systems with Dual-fluid channel, with good ergonomic designs, the upper end of cylinder 100 connects
Y-shaped three-way pipe 300 is connected to, Y-shaped three-way pipe 300 is included under the outer cone locked joints 302 on threeway cylinder top, threeway cylinder
Portion is provided with the piston switch pipeline in the middle of inner circle taper joint 303, triple cylinder side bent sub 304 and threeway cylinder, piston switch
The stop,threeway switch 400 of activity, the outer cone locked joints 302 on top and the inner circle taper joint of bottom are plugged with pipeline
303 center line is overlapped, and pre-filled syringe fluid cartridge is provided with pre-filled syringe fluid cartridge joint, pre-filled syringe stream
Body cylinder joint is connected with lateral bending joint 304, and semicircle shape fluid cartridge 101 is provided with pumping joint 102, pumping joint 102 and inner circle
Taper joint 303 is connected, and outer cone locked joints 302 are connected with syringe needle.
Such as Fig. 2 and Fig. 5, the supporter 103 of half-surrounded is connected with the planar side outer wall 106 of semicircle shape fluid cartridge 101, is propped up
Support body 103 is specially：Its side wall 105 is to be formed with the circular arc side wall 107 of semicircle shape fluid cartridge 101 with the two-way continuity in identical axle center
, leaving certain gaps uncovered by the economic plan between two support body sidewalls 105, breach distance is slightly less than pre-filled syringe fluid cartridge diameter, and its breach rises
The effect of pre-filled syringe fluid cartridge is fixed to buckle, it is equidistant provided with four roads on the vertical plane of the support medial surface of body sidewall 105
Gusset, gusset proximally arrive distal end is followed successively by gusset 1, gusset 2 111, gusset 3 112 and gusset 4 113, gusset one
110th, gusset 2 111, gusset 3 112 and gusset 4 113 are merged with side wall 105 and the planar side outer wall 106 of semicircle shape fluid cartridge 101
Neck support is formed, its gusset face is semicircle, and wherein gusset 1 is fused into system with the distal end sealing surface of semicircle shape fluid cartridge 101
One plane, and gusset 4 113 is fused into same plane with the proximal end face of dactylostyle 104.Operator is by pre-filled syringe and semicircle shape
Fluid cartridge 101 is parallel to be caught in after supporter 103, and the side wall 105 of supporter 103 forms semi-surrounding to pre-filled syringe fluid cartridge,
And forming bayonet socket prevents pre-filled syringe fluid cartridge from deviating from breach, gusset 1, gusset 2 111, gusset 3 112 and gusset
4 113 groove profile fully agrees with to form stable support with pre-filled syringe fluid cartridge profile, and the supporting construction of semi-surrounding makes pre-
Filling syringe fluid cylinder is installed forms an integrated class cylindrical-shaped structure with semicircle shape fluid cartridge 101 afterwards, for
For injecting systems with Dual-fluid channel, with good ergonomic designs.
Such as Fig. 3, the outside of 101 circular arc side wall of semicircle shape fluid cartridge 107 is connected with the slip parallel with semicircle shape fluid cartridge 101
Guide rail substrate 114, the section of guide groove 115 is in inverted T-shaped, and length is less than semicircle shape fluid cartridge 101, and guide groove 115 is distally closed, led
The proximal openings of track slot 115, and the proximal openings of guide groove 115 are in the proximal end face of rail plate substrate 114, inverted T-shaped guide groove 115
The design limiting unicity of the direction of motion of outer piston bar 202 of piston rod 200, improve the handling of outer piston bar 202 and
Structural stability.
Such as Fig. 4, the bottom surface of cylinder 100 is connected with the dactylostyle 104 of rhombus tabular, and dactylostyle 104 is perpendicular to cylinder 100, dactylostyle 104
The major axis of plate face is distributed in the lateral wall of semicircle shape fluid cartridge 101 and the both sides of support body sidewall 105 intersection, the plate of dactylostyle 104
Be provided with the short axle in face with the madial wall cross sectional shape identical through hole of semicircle shape fluid cartridge 101, from the distal end of dactylostyle 104 to near-end
The slotted eye of three layers of different inner diameters is provided with, the slotted eye of three layers of different inner diameters is respectively distal end slotted eye, middle slotted eye 117 and near-end slotted eye
116, a gusset combines together in distal end slotted eye and supporter, the gusset 4 113 of specific distal end slotted eye and supporter 103
Combine together so that distance and the gusset four of supporter 103 of the distal end slotted eye with leaving certain gaps uncovered by the economic plan between two support body sidewalls 105
113 breach are consistent, and near-end slotted eye 116 is the slotted eye of shape such as character cut in bas-relief, and near-end slotted eye 116 is slightly larger than pre-filled syringe piston rod
Sectional dimension, enable pre-filled syringe piston rod in its pre-filled syringe fluid cartridge slidably, and limited swivel,
And the locking annular shirt rim of pre-filled syringe fluid cartridge proximal end face evagination, so as to be conducive to prevention pre- after installing
Fill displacement of the syringe fluid cylinder by distal end proximally.When installing pre-filled syringe fluid cartridge to supporter 103, it should note
Pre-filled syringe piston rod is adjusted to the push handle of pre-filled syringe piston rod and piston rod in semicircle shape fluid cartridge 101 by meaning
Mutual not collision position, the middle slotted eye 117 between the distal end slotted eye of dactylostyle 104 and near-end slotted eye 116 when 200 push handle 203 is used
Aperture and thickness should be greater than filling the external diameter and thickness of syringe fluid cylinder proximal end face evagination annular shirt rim, make its foot when mounted
To accommodate the annular shirt rim structure of filling syringe fluid cylinder proximal end face evagination.
Such as Fig. 6 and Fig. 7, piston rod 200 is to be made up of inner piston rod 201 and outer piston bar 202 in push handle 203,
The distal end of inner piston rod 201 is semicircle piston plate 204, and the size of inner piston rod 201 should closely agree with semicircle shape fluid cartridge 101
Cavity, inner piston rod 201 is that two orthogonal wide gussets different into cross, width and narrow gusset are constituted, cross searching with
The geometric center of semicircle piston plate 204 is overlapped, and the plate face of wide gusset is parallel with the straight flange of semicircle piston plate 204, wide gusset
Width is slightly less than the semicircle width of piston plate 204, and the width of corresponding narrow gusset is also slightly less than the semicircle width of piston plate 204,
The length of inner piston rod 201 should be greater than the length of semicircle shape fluid cartridge 101；Specific outer piston bar 202 is an arc, outside it
The distance and direction of piston rod 202 and inner piston rod 201 should be guide groove 115 and the distance of the semicircle cavity of fluid cartridge 101
Consistent with direction, the distal exterior face of outer piston bar 202 is provided with the anti-skidding raised line 205 of transverse direction of parallel array, forms outer piston
Stringer raised line 206 is provided with the middle part of the manipulation position of bar 202, the medial surface of outer piston bar 202, stringer raised line 206 distally sets T-shaped convex
Block 207, the length of outer piston bar 202 is less than the length of inner piston rod 201, width and the rail plate substrate 114 of outer piston bar 202
Width it is identical；Push handle 203 is trapezoidal platy structure, and the short side side of trapezoidal tabular push handle 203 is connected with the lower end of outer piston bar 202
Together, the long side of trapezoidal tabular push handle 203 is concordant with the narrow gusset face edge of inner piston rod 201, make piston rod 200 and
Push handle 203 does not conflict mutually pre-filled syringe with the activity of pre-filled syringe push handle after installation on cylinder 100.Will be living
Stopper rod 200 is attached to after semicircle shape fluid cartridge 101, and semicircle piston plate 204 forms sealed chamber with semicircle shape fluid cartridge 101
Body, the slip of semicircle piston plate 204 causes the negative pressure or malleation of cavity, so as to the flowing of liquid in push chamber body, outside
The stringer raised line 206 and T-shaped projection 207 of the medial surface of piston rod 202 should accurately be embedded in leading on the outside of semicircle shape fluid cartridge 101
In track slot 115, operator can be by controlling push handle or the distal portion of outer piston bar 202 to make piston in semicircle shape fluid cartridge 101
The movement of intracavitary smoothly, this design makes piston rod 200 have more an extra manipulation position compared with normal injection push rod, allows operator
When being hold by one hand integrated drawing out and infusion device, realized simultaneously using single gesture and extract and inject two kinds of functions, maintained significantly
The stability of operation.
Such as Fig. 8, Fig. 9, Y-shaped three-way pipe 300 by cylinder 301 and the top of cylinder 301 outer cone locked joints 302, cylinder
The inner circle taper joint 303 of 301 bottoms and the lateral bending joint 304 of cylinder 301 are constituted, outer cone locked joints 302 and inner circle tapered joint
First 303 be 6% female Luer of standard, and the two ends caliber of cylinder 301 caliber compared with the middle of is bigger, divides on the side inwall of cylinder 301
The raised line 305 parallel with piston switch pipeline transverse axis is furnished with, is provided with and piston switch pipeline on the opposite side inwall of cylinder 301
Concentric ring-type raised line 306, outer cone locked joints 302 are externally provided with tapped collar 307, outer cone locked joints
The axle center line position that 302 internal axis line positions are provided with inside entrance hole 1, inner circle taper joint 303 is provided with entrance hole two
309, entrance hole 1 and entrance hole 2 309 to pass through outer cone locked joints 302 and inner circle taper joint inside cylinder 301
303 communicate with outside, and the lower end of lateral bending joint 304 is an inner circle wimble interface, inner circle wimble interface and the parallel of inner circle taper joint 303
Row, the lower surface of lateral bending joint 304 is concordant with the lower surface of inner circle taper joint 303, and the upper end of lateral bending joint 304 is to bend to cylindroid
Shape structure, and the upper end of lateral bending joint 304 is connected to the outer wall of Y-shaped three-way pipe 300, the lateral bending joint 304 of elliptic cylindrical shape structure
The central shaft that central shaft is overlapped with the outer cone locked joints 302 on top and the inner circle taper joint 303 of bottom is into 60 degree of angles, lateral bending
The central shaft that the central shaft and outer cone locked joints 302 and inner circle taper joint 303 of joint 304 are overlapped is opened with middle piston
Close pipeline transverse axis to intersect, be provided with and connect along elliptic cylindrical shape structure lateral bending inside the upper end of lateral bending joint 304 of elliptic cylindrical shape structure
The entrance hole 3 310 of first 304 axis insertion, makes to communicate inside the female cone cavity and cylinder 301 of lateral bending joint 304, female cone
Wheelbase, which should be fit to, between the female cone of joint 303 and lateral bending joint 304 is provided with pre-filled syringe fluid cartridge joint and takes out
Note the wheelbase between joint.
According to Figure 10, Figure 11, Figure 12, stop,threeway switch 400 includes the handle plate 401 and switching cylinder 402 of drops,
The center of handle plate 401 is provided with through hole 409, and the surface of handle plate 401 indicates pipeline communication direction signs 404, the upper and lower sides of handle plate 401
Face is provided with the tread plate 405 of array, and stop,threeway switch 400 is inserted in the piston switch pipeline of cylinder 301, handle plate 401
Bottom surface is fixedly connected with switching cylinder 402, and switching cylinder 402 and the plane perpendicular of handle plate 401, the switching diameter of cylinder 402 with
The through-hole diameter 409 of handle plate 401 is identical, the piston switch internal diameter of the pipeline phase in the middle of the switching external diameter of cylinder 402 and threeway cylinder
Matching, keeps sealing not reveal after making stop,threeway switch insertion, and the tubular of stop,threeway switch is designed with beneficial to material
Save, provided with the trident pipeline 403 that interconnects in switching cylinder 402, the opening of trident pipeline 403 respectively with threeway cylinder
Outer cone locked joints 302, the inner circle taper joint 303 of threeway cylinder bottom on top are mutually led with triple cylinder side bent sub 304
Logical, particularly trident pipeline 403 is respectively be open one 410, opening 2 411 and opening 3 412, the opening of trident pipeline 403
One 410, opening 2 411 and the distribution of opening 3 412 and the outer cone locked joints 302 on the inwall of cylinder 301, inner circle taper joint
303 and the opening angle of lateral bending joint 304 be mirrored into, switching cylinder 402 lower surface lateral wall be provided with annular groove 406, hand
The lateral wall that switching cylinder 402 is close in the bottom surface of handle plate 401 is provided with the middle of symmetrical projection 407, symmetrical projection 407 and threeway cylinder
The ring rib 305 of the madial wall relevant position of piston switch pipeline coordinates locking, and switching cylinder 402 is close to the bottom of handle plate 401
Face end lateral wall is provided with groove 408, groove 408 totally four, in symmetrical two-by-two, texturearunaperpendicular in the bottom surface of handle plate 401,
Groove 408 in being symmetrically distributed on the switching outer wall of cylinder 402 two-by-two, and one pair of which groove 408 is located at the long axis of handle plate 401
On, the center line line of another pair groove 408 is with the long axis of handle plate 404 into 30 degree of angles, and groove 408 coordinates the madial wall of cylinder 301
The raised line 305 of relevant position, limits the angle that handle plate 401 is rotated.
According to Figure 13, Figure 14 and Figure 15, formed after stop,threeway switchs cylinder 301 of 400 insertion Y-shaped three-way pipes 300
One complete Y-type three way type connection system, now, the groove 406 of stop,threeway switch 400 and symmetrical projection 407 coordinate cylinder
Three of trident pipeline 403 on the locking stop,threeway of ring-type raised line 306 switch 400 in 301, stop,threeway switch 400 open
Mouth is concordant with the opening of three joints on the inwall of cylinder 301, when handle plate 401 points to the side of lateral bending joint 304, and handle plate
During the central axis that 401 major axis coincides with outer cone locked joints 302 and inner circle taper joint 303, trident pipeline 403 connects
Logical outer cone locked joints 302 and lateral bending joint 304；When the inside direction of cone joint 303 of handle plate 401 is stirred into 60 degree, make
Obtain operator and feel that the groove 408 on stop,threeway switch 400 is produced with the intermeshing of raised line 305 on Y-shaped three-way pipe 300
When having incarceration sense, now illustrate that stop,threeway switch 400 is rotated in place, the trident pipeline 403 of stop,threeway switch 400 connects outer
Cone locking joint 302 and inner circle wimble interface 303, and enclose lateral bending joint 304；If again by handle plate 401 to outer cone
When the direction of locked joints 302 stirs 60 degree, when operator feels the groove 408 and Y-shaped three-way pipe on stop,threeway switch 400
When the intermeshing of raised line 305 on 300 has incarceration sense, illustrate that handle plate 401 returns to initial position, stop,threeway is opened
400 the connection outer cone of trident pipeline 403 locked joints 302 and lateral bending joint 304 are closed, and close inner circle wimble interface 303.
According to Figure 16 to Figure 19, when the set embodiment of operator using the present invention, the first step confirms cylinder respectively
100 combine installation with piston rod 200, and Y-shaped three-way pipe 300 combines installation with stop,threeway switch 400, so that this technology shape
System is connected into the complete Y-type three way type of a complete pumping system and one；Second step, by pre-filled syringe fluid cartridge
In the neck for being attached to the supporter 103 on cylinder 100, it is necessary to rotate before abundant fixed pre-filled syringe fluid cartridge
The push handle of pre-filled syringe piston rod in pre-filled syringe fluid cartridge so that confirm the push handle of pre-filled syringe piston rod
Will not mutually it conflict with piston rod push handle 203 in semicircle shape fluid cartridge 101 in pumping system in sliding stroke, so as to avoid pre-fill
Fill the push handle of syringe piston rod and be mutually shifted with piston rod push handle 203 in semicircle shape fluid cartridge 101 and is affected；3rd step,
Then by the inner circle taper joint 303 and lateral bending joint 304 of Y-shaped three-way pipe 300 respectively with pumping joint 102 and prefilled injection
Device fluid cartridge joint is connected simultaneously；4th step, the connecting needle on the outer cone locked joints 302 of Y-shaped three-way pipe 300.This hair
Bright integrated medical Y-type three way type drawing out and infusion device is completely installed, in use, handle plate 401 is pointed into the side of lateral bending joint 304,
And the major axis of handle plate 401 and outer cone locked joints 302 and inner circle taper joint 303 coincide central axis when, trident
The connection outer cone of pipeline 403 locked joints 302 and lateral bending joint 304, i.e. syringe needle and pre-filled syringe fluid cartridge formation single-pass
Fluid path, operator can be by operating the push handle of pre-filled syringe piston rod in pre-filled syringe fluid cartridge to realize medicament
Inject, from without influenceing the medicament in pre-filled syringe fluid cartridge, pre-filled syringe single-pass is closed when needing to switch to
During fluid path, when the inside direction of cone joint 303 of handle plate 401 is stirred into 60 degree when there is incarceration sense, outer cone locked joints 302
On syringe needle and the upper half round shape fluid cartridge 101 of cylinder 100 between passage open, the syringe needle on outer cone locked joints 302 with it is pre-
Fill syringe fluid cylinder to close, the work(that can now manipulate the push handle of outer piston bar 202 to realize the suction of cylinder 100 or inject
Energy；If pumping cylinder function need to be reused, by the major axis and outer cone of the clawback of handle plate 401 to initial position, i.e. handle plate 401
During the central axis that locked joints 302 and inner circle taper joint 303 coincide, after incarceration sense is felt, now syringe needle with
Pre-filled syringe fluid cartridge is turned on, and wherein syringe needle is opened with pre-filled syringe fluid cartridge.
Claims (7)
1. a kind of integrated Y-type three way type injector for medical purpose, including cylinder, piston rod and syringe needle, it is characterised in that：Cylinder is set to half
Round shape fluid cartridge, the planar side outer wall of semicircle shape fluid cartridge is connected between the supporter of half-surrounded, support body sidewall and left
Breach, provided with the gusset that four roads are equidistant on the vertical plane in supporter inside sidewalls face, has been caught in pre- in the supporter of half-surrounded
Fill in syringe fluid cylinder, pre-filled syringe fluid cartridge and be provided with pre-filled syringe piston rod, semicircle shape fluid cartridge circular arc
Side-wall outer side is connected with the rail plate pedestal parallel with semicircle shape fluid cartridge, rail plate pedestal and is provided with guide groove, guide rail
Groove cross section is in inverted T-shaped, and guide groove is less than barrel lenght, is provided with piston rod in semicircle shape fluid cartridge, piston rod is by interior work
Stopper rod and outer piston bar integral type composition, inner piston rod and outer piston bar difference it is corresponding be arranged on semicircle shape fluid cartridge cavity and
In guide groove, cylinder upper end is connected with Y-shaped three-way pipe, and Y-shaped three-way pipe includes the outer cone locked joints on threeway cylinder top, three
Logical cylinder bottom is provided with the piston switch pipeline in the middle of inner circle taper joint, triple cylinder side bent sub and threeway cylinder, and piston is opened
Close the center of the stop,threeway switch for the activity of being plugged with pipeline, the outer cone locked joints on top and the inner circle taper joint of bottom
Line is overlapped, and pre-filled syringe fluid cartridge is provided with pre-filled syringe fluid cartridge joint, pre-filled syringe fluid cartridge joint
It is connected with lateral bending joint, semicircle shape fluid cartridge is provided with pumping joint, pumping joint is connected with inner circle taper joint, outer cone locking
Joint is connected with syringe needle.
2. integration Y-type three way type injector for medical purpose as claimed in claim 1, it is characterised in that：The breach distance is slightly less than pre-
Fill syringe fluid cylinder diameter.
3. integration Y-type three way type injector for medical purpose as claimed in claim 1, it is characterised in that：The cylinder bottom surface is connected with water chestnut
The dactylostyle of shape tabular, dactylostyle is provided with distal end slotted eye, middle slotted eye and near-end slotted eye perpendicular to cylinder, dactylostyle from distal end to near-end,
Distal end slotted eye, middle slotted eye and near-end slotted eye internal diameter are differed, aperture and the thickness of distal end slotted eye, middle slotted eye and near-end slotted eye
Degree is more than one in the external diameter and thickness of pre-filled syringe fluid cartridge lower surface evagination annular shirt rim, distal end slotted eye and supporter
Gusset is combined together, and near-end slotted eye is the slotted eye of shape such as character cut in bas-relief, and near-end slotted eye is cut slightly larger than pre-filled syringe piston rod
Face size.
4. integration Y-type three way type injector for medical purpose as claimed in claim 1, it is characterised in that：The piston rod is by inner piston rod
Constituted with the push handle integral type of outer piston bar and trapezoidal tabular, inner piston rod distal face is semicircle piston plate, semicircle piston
Plate and semicircle shape fluid cartridge inner chamber mates, inner piston rod be two orthogonal wide gussets different into cross, width and
Narrow gusset is constituted, and cross searching is overlapped with the geometric center of semicircle piston plate, the plate face of wide gusset and semicircle piston plate
Straight flange is parallel, and the width of wide gusset plate face is slightly less than semicircle piston plate width, and the width of narrow gusset plate face is also slightly less than semicircle
Shape piston plate width, the length of inner piston rod is more than the length of semicircle fluid cartridge, and specific outer piston bar is an arc, outside it
The distance and direction of piston rod and inner piston rod should be that guide groove is consistent with the distance of semicircle fluid cartridge cavity and direction,
The upper end lateral surface of outer piston bar is provided with convex provided with stringer in the middle part of the anti-skidding raised line of transverse direction of parallel array, outer piston bar medial surface
Bar, stringer raised line upper end is provided with T-shaped projection, and the length of outer piston bar is less than inner piston rod length, the width of outer piston bar with
Guide rail well width is identical, and short side side and the outer piston bar lower end of trapezoidal tabular push handle link together, the length of trapezoidal tabular push handle
Side is concordant with the narrow gusset face edge of inner piston rod, stringer raised line and T-shaped projection the insertion guide groove of outer piston bar medial surface
In.
5. integration Y-type three way type injector for medical purpose as claimed in claim 1, it is characterised in that：The outer cone locked joints and
Inner circle taper joint is 6% female Luer of standard.
6. integration Y-type three way type injector for medical purpose as claimed in claim 1, it is characterised in that：Y-shaped three-way pipe two ends caliber
Slightly larger than middle caliber, the raised line parallel with piston switch pipeline transverse axis, Y-type three way type are distributed with the inwall of Y-shaped three-way pipe side
The opposite side inwall of pipe is provided with the ring-type raised line concentric with piston switch pipeline, and outer cone locked joints are externally provided with interior spiral shell
The collar of line, lateral bending joint lower end is an inner circle wimble interface, and inner circle wimble interface and inner circle taper joint are arranged in parallel, under lateral bending joint
End face is concordant with inner circle taper joint lower surface, and lateral bending upper end of joint is bends to elliptic cylindrical shape structure, and lateral bending upper end of joint connects
It is connected to the outer wall of Y-shaped three-way pipe, central shaft and outer cone locked joints and the inner circle tapered joint of the lateral bending joint of elliptic cylindrical shape structure
The central shaft of nose heave conjunction is into 60 degree of angles, and the central shaft and outer cone locked joints and inner circle taper joint of lateral bending joint are overlapped
Heart axle intersects with middle piston switch pipeline transverse axis, is provided with inside the lateral bending upper end of joint of elliptic cylindrical shape structure along ellipse
The entrance hole three of column structure lateral bending joint axis insertion.
7. integration Y-type three way type injector for medical purpose as claimed in claim 1, it is characterised in that：The stop,threeway switch includes
The handle plate and switching cylinder of drops, handle plate center are provided with through hole, and handle plate surface indicates pipeline communication direction signs, hand
Handle plate upper and lower side is provided with the tread plate of array, and the bottom surface of handle plate is fixedly connected with switching cylinder, switching drum diameter and hand
Through-hole diameter on handle plate is identical, and switching outside diameter of cylinder matches with stop,threeway switch internal diameter of the pipeline, is provided with switching cylinder
The trident pipeline interconnected, the outer cone locked joints, the threeway cylinder that are open respectively with threeway cylinder top of trident pipeline
The inner circle taper joint and triple cylinder side bent sub of bottom are conducted, and the lower surface lateral wall of switching cylinder is recessed provided with annular
Groove, handle plate bottom surface is close to switching cylinder lateral wall and is provided with symmetrical projection, and symmetrical projection switchs the interior of pipeline with stop,threeway
The ring rib of side wall relevant position coordinates locking, and switching cylinder lateral wall is provided with groove, and texturearunaperpendicular is in the handle plate
Bottom surface, groove in being symmetrically distributed on switching cylinder outer wall two-by-two, and one pair of which groove is located on the long axis of handle plate, another
To groove center line line and handle plate long axis into 30 degree of angles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557154.0A CN104225727B (en) | 2014-10-16 | 2014-10-16 | A kind of integrated Y-type three way type injector for medical purpose |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410557154.0A CN104225727B (en) | 2014-10-16 | 2014-10-16 | A kind of integrated Y-type three way type injector for medical purpose |
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| CN104225727A CN104225727A (en) | 2014-12-24 |
| CN104225727B true CN104225727B (en) | 2017-10-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107335114B (en) * | 2016-04-29 | 2020-06-05 | 黄翔 | Needle head structure |
| CN110327540B (en) * | 2019-08-20 | 2021-07-06 | 杜春梅 | Clinical sterilizer for gynecology |
| CN113244484A (en) * | 2021-04-14 | 2021-08-13 | 中国人民解放军海军军医大学 | Controllable-dose rapid injection device for battlefield analgesia |
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| DE632579C (en) * | 1933-12-05 | 1936-09-09 | Georg V Bud Dr | Device for injecting several agents into the blood vessels |
| FR1054173A (en) * | 1951-11-30 | 1954-02-09 | Advanced syringe for injections | |
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| US4199079A (en) * | 1978-07-31 | 1980-04-22 | The United States Of America As Represented By The Secretary Of The Air Force | Microsphere loading device |
| US4471765A (en) * | 1980-09-25 | 1984-09-18 | The Massachusetts General Hospital | Apparatus for radiolabeling red blood cells |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104225727A (en) | 2014-12-24 |
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Inventor after: Chen Wei Inventor after: Liu Hao Inventor after: Du Feiya Inventor before: Chen Wei Inventor before: Liu Hao |