CN104225727A - Integrated Y type three-way medical injector - Google Patents
Integrated Y type three-way medical injector Download PDFInfo
- Publication number
- CN104225727A CN104225727A CN201410557154.0A CN201410557154A CN104225727A CN 104225727 A CN104225727 A CN 104225727A CN 201410557154 A CN201410557154 A CN 201410557154A CN 104225727 A CN104225727 A CN 104225727A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- fluid cartridge
- joint
- type
- semicircle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an integrated Y type three-way medical injector. The integrated Y type three-way medical injector comprises a barrel body, a piston rod and a syringe needle, wherein the barrel body is a semicircular fluid barrel, the outer wall at the plane side of the semicircular fluid barrel is connected with a semi-encircling supporting body, the pre-filling injector fluid barrel is clamped into the semi-encircling supporting body, the outer side of the arc side wall of the semicircular fluid barrel is connected with a sliding guide rail base, the piston rod is installed inside the semicircular fluid barrel, the piston rod is composed of an inner piston rod and an outer piston rod in an integrated mode, the inner piston rod and the outer piston rod are correspondingly installed inside a cavity of the semicircular fluid barrel and a guide rail groove respectively, the upper end of the barrel body is connected with a Y type three-way pipe, a movable three-way piston switch is installed in the Y type three-way pipe, and the upper portion of the Y type three-way pipe is connected with the syringe needle. Compared with the prior art, the integrated Y type three-way medical injector is provided with a Y type three-way structure, enables switching operation to be simpler and safer, and enables a user to carry out injection with one hand. Besides, the pipe diameter of the Y type three-way pipe is small, and therefore the utilization rate of medicine is improved.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of integrated Y-type three way type injector for medical purpose.
Background technology
Known precharging type syringe be a kind of by medicine fill in advance in syringe so that the armarium directly used, it is during World War II, in order to meet FAMB, the needs of on-the-spot aseptic medical are occurred, its appearance effectively can prevent the pollution in injectable drug preparation, mixed process, and effectively can improve the utilization rate of medicine, save medicine from produces uses in spent by manually and cost.What current medicinal used mostly is T-shaped tee T syringe, its three interfaces are the distribution of 90 degree, interval, following problem can be there is: first for traditional T-shaped tee T syringe, T-shaped tee T syringe needs more complicated operation for the switching between the independent liquid path of two-way, and it is not suitable for the injecting systems operation of single-hand handling & pin, the second, syringe caliber is comparatively thick, residual dose can be caused comparatively large, thus can waste resource, 3rd, when pharmaceutical preparation has certain viscosity, pumpback inconvenience can be caused, for patient medication has buried severe compromise, and the clinical practice of active drug can be limited, such as when in shaping and beauty field, wherein due to it, specifically biology and physical characteristic have good moulding cosmetic result to hyaluronic acid, be with a wide range of applications, but its thick matter colloid can cause precharging type syringe cannot effectively pumpback in Clinical practice process, and once hyaluronic acid be injected blood vessel by mistake, blood vessel embolism can be caused, thus ischemic neuronal will be caused to benumb, cutaneous necrosis, blind etc., serious will threat to life.
Summary of the invention
In order to overcome the weak point of the precharging type syringe under prior art, the invention provides a kind of use more safe and reliable, one-handed performance is more simple and convenient and improve the integrated Y-type three way type injector for medical purpose of 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, comprise cylindrical shell, piston rod and syringe needle, cylindrical shell is set to semicircle shape fluid cartridge, semicircle shape fluid cartridge is hollow structure, the hollow of semicircle shape fluid cartridge is used for the assembling of the inner piston rod in piston rod, semicircle shape fluid cartridge lower port medial wall arranges raised band, raised band is conducive to preventing the inner piston rod in piston rod from slip, surprisingly exiting semicircle shape fluid cartridge, the planar side outer wall of semi-circular cylindrical fluid cartridge is connected with the supporter of half-surrounded, leaving certain gaps uncovered by the economic plan between supporter sidewall, the vertical plane in supporter inside sidewalls face is provided with the gusset that four roads are equidistant, pre-filled syringe fluid cartridge has been snapped in the supporter of half-surrounded, pre-filled syringe piston rod is provided with in pre-filled syringe fluid cartridge, semicircle shape fluid cartridge circular arc side-wall outer side is connected with the rail plate pedestal parallel with semicircle shape fluid cartridge, guide-track groove is had in rail plate pedestal, guide-track groove cross section is inverted T-shaped, and guide-track groove length is less than barrel lenght, the design limiting of the inverted T-shaped guide-track groove unicity in piston rod movement directions, piston rod China and foreign countries, improve the handling of outer piston bar and structural stability, in semicircle shape fluid cartridge, piston rod is installed, piston rod is made up of inner piston rod and outer piston bar integral type, inner piston rod and outer piston bar are corresponding to be respectively arranged in semicircle fluid cartridge cavity and guide-track groove, after pre-filled syringe fluid cartridge is snapped in supporter by operator, supporter sidewall forms semi-surrounding to pre-filled syringe fluid cartridge, and form bayonet socket and prevent pre-filled syringe fluid cartridge from deviating from breach, form an integrated class cylindrical-shaped structure with semicircle shape fluid cartridge after the supporting construction of semi-surrounding makes pre-filled syringe fluid cartridge install, for the injecting systems with Dual-fluid channel, there is good ergonomic designs, cylindrical shell upper end is connected with Y-shaped three-way pipe, Y-shaped three-way pipe comprises the outer cone locked joints on threeway cylindrical shell top, threeway cylindrical shell bottom is provided with female cone joint, the piston switch pipeline of triple cylinder side bent sub and threeway cylindrical shell centre, movable stop,threeway switch is plugged with in piston switch pipeline, the centrage of the outer cone locked joints on top and the female cone joint of bottom overlaps, pre-filled syringe fluid cartridge is provided with pre-filled syringe fluid cartridge joint, pre-filled syringe fluid cartridge joint is connected with lateral bending joint, semicircle shape fluid cartridge is provided with takes out note joint, take out note joint to be connected with female cone joint, outer cone locked joints is connected with syringe needle.
Described breach distance is slightly less than pre-filled syringe fluid cartridge diameter, can fix pre-filled syringe fluid cartridge by buckle very well.
Described cylindrical shell bottom surface is connected with the dactylostyle of rhombus tabular, dactylostyle is perpendicular to cylindrical shell, dactylostyle distally (far-end is the direction pointing to the patient body accepting injection) has far-end slotted eye to near-end (near-end points to the patient body direction away from injection), middle slotted eye and near-end slotted eye, far-end slotted eye, middle slotted eye is all not identical with near-end slotted eye internal diameter, far-end slotted eye, the aperture of middle slotted eye and near-end slotted eye and thickness are greater than external diameter and the thickness of pre-filled syringe fluid cartridge lower surface evagination annular shirt rim, it is made to be enough to hold the annular shirt rim structure of filled syringe fluid cartridge lower surface evagination when mounted, in far-end slotted eye and supporter, a gusset combines together, make far-end slotted eye consistent with the gusset breach in supporter with the distance of leaving certain gaps uncovered by the economic plan between two supporter sidewalls, near-end slotted eye is the slotted eye of shape as character cut in bas-relief, near-end slotted eye is slightly larger than the sectional dimension of pre-filled syringe piston rod, pre-filled syringe piston rod can be free to slide in the supporter of its half-surrounded, and limited swivel, locking filled syringe fluid cartridge lower surface evagination annular shirt rim, thus be conducive to stoping and install rear pre-filled syringe fluid cartridge by far-end displacement proximally.When operator installs pre-filled syringe fluid cartridge to supporter, pre-filled syringe piston rod should be noted to adjust to push away the angle of not conflicting mutually when handle uses with piston rod and limit.
Described piston rod is made up of the handle integral type that pushes away of inner piston rod and outer piston bar and trapezoidal tabular, inner piston rod distal face is semicircle piston plate, semicircle piston plate matches with semicircle shape fluid cartridge inner chamber body, inner piston rod is two orthogonal one-tenth crosses, the wide gusset that width is different and narrow gusset are formed, cross searching overlaps with the geometric center of semicircle piston plate, the plate face of wide gusset is parallel with the straight flange of semicircle piston plate, the width in wide gusset plate face is slightly less than width on semicircle piston plate, the width in narrow gusset plate face is also slightly less than semicircle piston plate width, the length of inner piston rod is greater than the length of semicircle fluid cartridge, concrete outer piston bar is an arc, the Distance geometry direction of its outer piston bar and inner piston rod should be that guide-track groove is consistent with the Distance geometry direction of semicircle fluid cartridge cavity, the upper end lateral surface of outer piston bar is provided with the anti-skidding raised line of transverse direction of parallel array, stringer raised line is provided with in the middle part of outer piston bar medial surface, stringer raised line upper end is provided with T-shaped projection, the length of outer piston bar is less than inner piston rod length, the width of outer piston bar is identical with guide-track groove width, trapezoidal tabular pushes away the short side of handle and outer piston bar lower end links together, the long side that trapezoidal tabular pushes away handle is concordant with the edge, narrow gusset face of inner piston rod, the stringer raised line of outer piston bar medial surface and T-shaped projection embed in guide-track groove, operator can push away handle or outer piston and pushes away handle and make piston rod in the level and smooth movement of semicircle fluid cartridge intracavity by controlling inner carrier, this design makes piston rod have more an extra manipulation position compared with normal injection push rod, allow operator when being hold by one hand integrated drawing out and infusion device, adopt single gesture to realize extracting and injecting two kinds of functions simultaneously, maintain the stability of operation.
Described outer cone locked joints and female cone joint are 6% female Luer of standard.
Described Y-shaped three-way pipe two ends caliber is slightly larger than middle caliber, Y-shaped three-way pipe side inwall is distributed with the raised line parallel with piston switch pipeline transverse axis, the opposite side inwall of Y-shaped three-way pipe is provided with the ring-type raised line with piston switch pipeline concentric, tapped collar is provided with outside outer cone locked joints, lateral bending joint lower end is a female cone interface, female cone interface and female cone joint arranged in parallel, lateral bending joint lower surface is concordant with female cone joint lower surface, lateral bending upper end of joint is for bending to oval column 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 axle of oval column structure becomes 60 degree of angles with the central shaft that outer cone locked joints and female cone joint overlap, and the central shaft of the central shaft of lateral bending joint and outer cone locked joints and the coincidence of female cone joint is all crossing with piston switch pipeline transverse axis, the lateral bending upper end of joint inside of oval column structure is provided with along the through entrance hole three of oval column structure side bent sub axis, the female cone cavity of lateral bending joint bottom and inner barrel are communicated, between the female cone of female cone joint and lateral bending joint bottom, wheelbase should be fit to and is provided with pre-filled syringe fluid cartridge joint and takes out the wheelbase noted between joint.
Described stop,threeway switch comprises drop-shaped handle plate and switching cylinder, handle plate central authorities are provided with through hole, handle plate surface indicates pipeline communication direction signs, handle plate upper and lower side is provided with the tread plate of array, the bottom surface of handle plate is fixedly connected with switching cylinder, switching drum diameter is identical with the through-hole diameter in handle plate, switching outside diameter of cylinder and stop,threeway switch internal diameter of the pipeline match, the trident pipeline interconnected is provided with in switching cylinder, the opening of trident pipeline respectively with the outer cone locked joints on threeway cylindrical shell top, female cone joint and the triple cylinder side bent sub of threeway cylindrical shell bottom are conducted, the lateral wall, lower surface of switching cylinder is provided with annular groove, handle plate bottom surface is close to switching cylinder lateral wall and is provided with symmetrical projection, symmetrical projection coordinates with the ring rib of the relevant position, medial wall of stop,threeway switch pipeline and locks, switching cylinder lateral wall is provided with groove, described groove totally four, texturearunaperpendicular is in described handle plate bottom surface, groove is in being symmetrically distributed on switching cylinder outer wall between two, wherein a pair groove is positioned on the long axis of handle plate, another becomes 30 degree of angles to groove center line line with handle plate long axis.
Beneficial effect of the present invention: the invention provides the integrated medical Y-type three way type drawing out and infusion device that can agree with current multiple main flow specification pre-filled syringe, in medical injection procedure, by controlling stop,threeway switching over prefilled drug syringe or taking out injection system two independent liquid paths, realize pumpback thus judge that syringe needle enters position after body, greatly improve safety during some drugs pre-filled syringe Clinical practice, and it is simpler than conventional T-shaped tee T operation for the switching between independent liquid path, more convenient to operate for single-hand handling & pin, Y-type three way type pipeline of the present invention adopts pipe with small pipe diameter, thus improves the utilization rate of precious medicine in pre-filled syringe, avoids waste.
Accompanying drawing explanation
Fig. 1 is decomposing schematic representation of the present invention;
Fig. 2 is cylindrical shell schematic diagram of the present invention;
Fig. 3 is figure cylindrical shell front view of the present invention;
Fig. 4 is that Fig. 3 place of the present invention is along A-A direction sectional view;
Fig. 5 is Fig. 4 place of the present invention B-B direction sectional view;
Fig. 6 is piston rod construction schematic diagram of the present invention;
Fig. 7 is that Fig. 6 of the present invention overlooks direction schematic diagram;
Fig. 8 is Y-shaped three-way pipe schematic diagram of the present invention;
Fig. 9 is that the present invention is along Fig. 8 place C-C sectional view;
Figure 10 is stop,threeway switch schematic diagram of the present invention;
Figure 11 is that the present invention is along D-D direction, Figure 10 place sectional view;
Figure 12 is stop,threeway switch front view of the present invention;
Figure 13 is Y-shaped three-way pipe lateral bending joint conducting schematic diagram of the present invention;
Figure 14 is female cone joint conducting schematic diagram in Y-shaped three-way pipe bottom of the present invention;
Figure 15 is that the present invention is along Figure 13 place E-E sectional view;
Figure 16 is the present invention's entirety assembling schematic diagram;
Figure 17 is the overall main apparent direction schematic diagram of the present invention;
Figure 18 is that the present invention is along Figure 18 place F-F sectional view;
Figure 19 is that the present invention is along Figure 19 place G-G sectional view.
Label implication in figure is: 100, cylindrical shell; 101, semicircle shape fluid cartridge; 102, take out note joint; 103, supporter; 104, dactylostyle; 105, sidewall; 106, planar side outer wall; 107, circular arc sidewall; 110, gusset one; 111, gusset two; 112, gusset three; 113, gusset four; 114, rail plate substrate; 115, guide-track groove; 116, near-end slotted eye; 117, middle slotted eye; 118, raised band; 200, piston rod; 201, inner piston rod; 202, outer piston bar; 203, push away handle; 204, semicircle piston plate; 205, anti-skidding raised line; 206, stringer raised line; 207, T-shaped projection; 300, Y-shaped three-way pipe; 301, cylindrical shell; 302, outer cone locked joints; 303, female cone joint; 304, lateral bending joint; 305, raised line; 306, ring-type raised line; 307, collar; 308, entrance hole one; 309, entrance hole two; 310, entrance hole three; 400, stop,threeway switch; 401, handle plate; 402, switching cylinder; 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.
Detailed description of the invention
As shown in Figure 1, a kind of integrated Y-type three way type injector for medical purpose, comprise cylindrical shell 100, piston rod 200 and syringe needle, cylindrical shell 100 is set to semicircle shape fluid cartridge 101, semicircle shape fluid cartridge 101 is hollow structure, the hollow of semicircle shape fluid cartridge 101 is used for the assembling of the inner piston rod 201 in piston rod 200, semicircle shape fluid cartridge 101 lower port medial wall arranges raised band 118, raised band 118 is conducive to preventing the inner piston rod 201 in piston rod 200 from slip, surprisingly exiting semicircle shape fluid cartridge 101, the planar side outer wall 106 of semi-circular cylindrical fluid cartridge 101 is connected with the supporter 103 of half-surrounded, leaving certain gaps uncovered by the economic plan between supporter 103 sidewall, the vertical plane in supporter 103 inside sidewalls face is provided with the gusset that four roads are equidistant, pre-filled syringe fluid cartridge has been snapped in the supporter 103 of half-surrounded, pre-filled syringe piston rod is provided with in pre-filled syringe fluid cartridge, the rail plate pedestal 114 parallel with semicircle shape fluid cartridge 101 is connected with outside semicircle shape fluid cartridge circular arc sidewall 107, guide-track groove 115 is had in rail plate pedestal 14, guide-track groove 15 cross section is inverted T-shaped, and guide-track groove 115 length is less than cylindrical shell 100 length, the design limiting of inverted T-shaped guide-track groove 115 unicity of piston rod 200 China and foreign countries piston rod 202 directions of motion, improve the handling of outer piston bar 202 and structural stability, piston rod 200 is installed in semicircle shape fluid cartridge 101, piston rod 200 is made up of inner piston rod 201 and outer piston bar 202 integral type, inner piston rod 201 and outer piston bar 202 are corresponding to be respectively arranged in semicircle fluid cartridge 101 cavity and guide-track groove 15, after pre-filled syringe fluid cartridge is snapped in supporter 103 by operator, supporter 103 sidewall forms semi-surrounding to pre-filled syringe fluid cartridge, and form bayonet socket and prevent pre-filled syringe fluid cartridge from deviating from breach, form an integrated class cylindrical-shaped structure with semicircle shape fluid cartridge 101 after the supporting construction of semi-surrounding makes pre-filled syringe fluid cartridge install, for the injecting systems with Dual-fluid channel, there is good ergonomic designs, cylindrical shell 100 upper end is connected with Y-shaped three-way pipe 300, Y-shaped three-way pipe 300 comprises the outer cone locked joints 302 on threeway cylindrical shell top, threeway cylindrical shell bottom is provided with female cone joint 303, the piston switch pipeline of triple cylinder side bent sub 304 and threeway cylindrical shell centre, movable stop,threeway switch 400 is plugged with in piston switch pipeline, the centrage of the outer cone locked joints 302 on top and the female cone joint 303 of bottom overlaps, pre-filled syringe fluid cartridge is provided with pre-filled syringe fluid cartridge joint, pre-filled syringe fluid cartridge joint is connected with lateral bending joint 304, semicircle shape fluid cartridge 101 is provided with takes out note joint 102, take out note joint 102 to be connected with female cone joint 303, outer cone locked joints 302 is connected with syringe needle.
As Fig. 2 and Fig. 5, the supporter 103 of half-surrounded is connected with at semicircle shape fluid cartridge 101 planar side outer wall 106, supporter 103 is specially: its sidewall 105 forms with the two-way continuity in identical axle center with semicircle shape fluid cartridge 101 circular arc sidewall 107, leaving certain gaps uncovered by the economic plan between two supporter sidewalls 105, breach distance is slightly less than pre-filled syringe fluid cartridge diameter, its breach plays the effect that buckle fixes pre-filled syringe fluid cartridge, the vertical plane of supporter sidewall 105 medial surface is provided with the gusset that four roads are equidistant, gusset proximally arrives far-end and is followed successively by gusset 1, gusset 2 111, gusset 3 112 and gusset 4 113, gusset 1, gusset 2 111, gusset 3 112 and gusset 4 113 merge with sidewall 105 and semicircle shape fluid cartridge 101 planar side outer wall 106 and form draw-in groove holder, its gusset face is semicircle, wherein gusset 1 and semicircle shape fluid cartridge 101 far-end sealing surface are fused into unified plane, and gusset 4 113 and dactylostyle 104 proximal end face are fused into same plane.Operator by parallel with semicircle shape fluid cartridge 101 for pre-filled syringe snap in supporter 103 after, supporter 103 sidewall 105 pairs of pre-filled syringe fluid cartridge form semi-surrounding, and form bayonet socket and prevent pre-filled syringe fluid cartridge from deviating from breach, gusset 1, gusset 2 111, grooved and the pre-filled syringe fluid cartridge profile of gusset 3 112 and gusset 4 113 fully agree with formation stable support, form an integrated class cylindrical-shaped structure with semicircle shape fluid cartridge 101 after the supporting construction of semi-surrounding makes pre-filled syringe fluid cartridge install, for the injecting systems with Dual-fluid channel, there is good ergonomic designs.
As Fig. 3, the rail plate substrate 114 parallel with semicircle shape fluid cartridge 101 is connected with outside semicircle shape fluid cartridge 101 circular arc sidewall 107, guide-track groove 115 cross section is inverted T-shaped, length is less than semicircle shape fluid cartridge 101, guide-track groove 115 far-end is closed, guide-track groove 115 proximal openings, and guide-track groove 115 proximal openings is in the proximal end face of rail plate substrate 114, the unicity of outer piston bar 202 direction of motion of the design limiting of inverted T-shaped guide-track groove 115 piston rod 200, improves the handling of outer piston bar 202 and structural stability.
As Fig. 4, cylindrical shell 100 bottom surface is connected with the dactylostyle 104 of rhombus tabular, dactylostyle 104 is perpendicular to cylindrical shell 100, the major axis in dactylostyle 104 plate face is all distributed in the both sides of semicircle shape fluid cartridge 101 lateral wall and supporter sidewall 105 intersection, the minor axis in dactylostyle 104 plate face has the through hole identical with semicircle shape fluid cartridge 101 medial wall cross sectional shape, the slotted eye of three layers of different inner diameters is had from the far-end of dactylostyle 104 to near-end, the slotted eye of three layers of different inner diameters is respectively far-end slotted eye, middle slotted eye 117 and near-end slotted eye 116, in far-end slotted eye and supporter, a gusset combines together, concrete far-end slotted eye and the gusset 4 113 of supporter 103 combine together, make far-end slotted eye consistent with gusset 4 113 breach of supporter 103 with the distance of leaving certain gaps uncovered by the economic plan between two supporter sidewalls 105, near-end slotted eye 116 is the slotted eye of shape as character cut in bas-relief, near-end slotted eye 116 is slightly larger than the sectional dimension of pre-filled syringe piston rod, pre-filled syringe piston rod can be free to slide in its pre-filled syringe fluid cartridge, and limited swivel, and the locking annular shirt rim of pre-filled syringe fluid cartridge proximal end face evagination, thus be conducive to stoping and install rear pre-filled syringe fluid cartridge by far-end displacement proximally.When installing pre-filled syringe fluid cartridge to supporter 103, should note pre-filled syringe piston rod to adjust to pre-filled syringe piston rod push away piston rod 200 in handle and semicircle shape fluid cartridge 101 to push away when handle 203 uses mutually not collision position, middle slotted eye 117 aperture between dactylostyle 104 far-end slotted eye and near-end slotted eye 116 and thickness should be greater than external diameter and the thickness of filled syringe fluid cartridge proximal end face evagination annular shirt rim, make it be enough to hold the annular shirt rim structure of filled syringe fluid cartridge proximal end face evagination when mounted.
As Fig. 6 and Fig. 7, piston rod 200 is made up of perpendicular to pushing away on handle 203 inner piston rod 201 and outer piston bar 202, the far-end of inner piston rod 201 is semicircle piston plate 204, inner piston rod 201 size closely should agree with semicircle shape fluid cartridge 101 inner chamber body, inner piston rod 201 is two orthogonal one-tenth crosses, the wide gusset that width is different and narrow gusset are formed, cross searching overlaps with the geometric center of semicircle piston plate 204, the plate face of wide gusset is parallel with the straight flange of semicircle piston plate 204, wide gusset width is slightly less than semicircle piston plate 204 width, the width of corresponding narrow gusset is also slightly less than semicircle piston plate 204 width, the length of inner piston rod 201 should be greater than the length of semicircle shape fluid cartridge 101, concrete outer piston bar 202 is an arc, the Distance geometry direction of its outer piston bar 202 and inner piston rod 201 should be that guide-track groove 115 is consistent with the Distance geometry direction of semicircle fluid cartridge 101 cavity, the distal exterior face of outer piston bar 202 is provided with the anti-skidding raised line 205 of transverse direction of parallel array, form the manipulation position of outer piston bar 202, stringer raised line 206 is provided with in the middle part of outer piston bar 202 medial surface, stringer raised line 206 far-end arranges T-shaped projection 207, the length of outer piston bar 202 is less than inner piston rod 201 length, the width of outer piston bar 202 is identical with the width of rail plate substrate 114, push away handle 203 for trapezoidal platy structure, trapezoidal tabular pushes away the short side of handle 203 and outer piston bar 202 lower end links together, the long side that trapezoidal tabular pushes away handle 203 is concordant with the edge, narrow gusset face of inner piston rod 201, and the activity making piston rod 200 and pre-filled syringe installation pusher handle 203 and pre-filled syringe on cylindrical shell 100 push away handle does not conflict mutually.After piston rod 200 is mounted to semicircle shape fluid cartridge 101, semicircle piston plate 204 forms with semicircle shape fluid cartridge 101 cavity sealed, the slip of semicircle piston plate 204 causes negative pressure or the malleation of cavity, thus the flowing of liquid in cavity can be promoted, the stringer raised line 206 of outer piston bar 202 medial surface and T-shaped projection 207 should embed in the guide-track groove 115 on outside semicircle shape fluid cartridge 101 accurately, operator can make piston in the level and smooth movement of semicircle shape fluid cartridge 101 intracavity by the distal portion controlling to push away handle or outer piston bar 202, this design makes piston rod 200 have more an extra manipulation position compared with normal injection push rod, allow operator when being hold by one hand integrated drawing out and infusion device, adopt single gesture to realize extracting and injecting two kinds of functions simultaneously, greatly maintain the stability of operation.
As Fig. 8, Fig. 9, Y-shaped three-way pipe 300 is by the outer cone locked joints 302 on cylindrical shell 301 and cylindrical shell 301 top, the female cone joint 303 of cylindrical shell 301 bottom and the lateral bending joint 304 of cylindrical shell 301 form, outer cone locked joints 302 and female cone joint 303 are 6% female Luer of standard, caliber comparatively middle caliber in cylindrical shell 301 two ends is bigger, cylindrical shell 301 side inwall is distributed with the raised line 305 parallel with piston switch pipeline transverse axis, the opposite side inwall of cylindrical shell 301 is provided with the ring-type raised line 306 with piston switch pipeline concentric, tapped collar 307 is provided with outside outer cone locked joints 302, outer cone locked joints 302 internal axis line position has entrance hole 1, the axial line position of female cone joint 303 inside has entrance hole 2 309, entrance hole 1 and entrance hole 2 309 make cylindrical shell 301 inside be communicated with outside by outer cone locked joints 302 and female cone joint 303, lateral bending joint 304 lower end is a female cone interface, female cone interface and female cone joint 303 arranged in parallel, lateral bending joint 304 lower surface is concordant with female cone joint 303 lower surface, lateral bending joint 304 upper end is for bending to oval column structure, and lateral bending joint 304 upper end is connected to the outer wall of Y-shaped three-way pipe 300, the central shaft of lateral bending joint 304 of oval column structure becomes 60 degree of angles with the central shaft that the outer cone locked joints 302 on top and the female cone joint 303 of bottom overlap, the piston switch pipeline transverse axis of central shaft all with middle of the central shaft of lateral bending joint 304 and outer cone locked joints 302 and female cone joint 303 coincidence is crossing, be provided with along the through entrance hole 3 310 of oval column structure side bent sub 304 axis in inside, lateral bending joint 304 upper end of oval column structure, the female cone cavity of lateral bending joint 304 and cylindrical shell 301 inside are communicated, between the female cone of female cone joint 303 and lateral bending joint 304, wheelbase should be fit to and is provided with pre-filled syringe fluid cartridge joint and takes out the wheelbase noted between joint.
According to Figure 10, Figure 11, Figure 12, stop,threeway switch 400 comprises drop-shaped handle plate 401 and switching cylinder 402, handle plate 401 central authorities are provided with through hole 409, handle plate 401 surface indicates pipeline communication direction signs 404, handle plate 401 upper and lower side is provided with the tread plate 405 of array, stop,threeway switch 400 inserts in the piston switch pipeline of cylindrical shell 301, the bottom surface of handle plate 401 is fixedly connected with switching cylinder 402, and switching cylinder 402 and handle plate 401 plane perpendicular, switching cylinder 402 diameter is identical with the through-hole diameter 409 of handle plate 401, the piston switch internal diameter of the pipeline of switching cylinder 402 external diameter and threeway cylindrical shell centre matches, sealing is kept not reveal after stop,threeway switch is inserted, and the tubular of stop,threeway switch is designed with and is beneficial to material economy, the trident pipeline 403 interconnected is provided with in switching cylinder 402, the opening of trident pipeline 403 respectively with the outer cone locked joints 302 on threeway cylindrical shell top, female cone joint 303 and the triple cylinder side bent sub 304 of threeway cylindrical shell bottom are conducted, particularly trident pipeline 403 is respectively opening 1, opening 2 411 and opening 3 412, the opening 1 of trident pipeline 403, opening 2 411 and opening 3 412 distribute and the outer cone locked joints 302 on cylindrical shell 301 inwall, female cone joint 303 becomes mirror image with lateral bending joint 304 opening angle, the lateral wall, lower surface of switching cylinder 402 is provided with annular groove 406, the lateral wall that switching cylinder 402 is close in handle plate 401 bottom surface is provided with symmetrical projection 407, symmetrical projection 407 coordinates with the ring rib 305 of the relevant position, medial wall of threeway cylindrical shell intermediate piston switch pipeline and locks, switching cylinder 402 is provided with groove 408 close to handle plate 401 bottom end lateral wall, groove 408 totally four, in symmetrical between two, texturearunaperpendicular is in handle plate 401 bottom surface, groove 408 is in being symmetrically distributed on switching cylinder 402 outer wall between two, wherein a pair groove 408 is positioned on the long axis of handle plate 401, another becomes 30 degree of angles to groove 408 centrage line with handle plate 404 long axis, groove 408 coordinates the raised line 305 of relevant position, cylindrical shell 301 medial wall, limit the angle that handle plate 401 is rotated.
According to Figure 13, Figure 14 and Figure 15, the Y-type three way type connected system that formation one is complete after stop,threeway switch 400 inserts the cylindrical shell 301 of Y-shaped three-way pipe 300, now, the groove 406 of stop,threeway switch 400 and symmetrical projection 407 coordinate the ring-type raised line 306 in cylindrical shell 301 to lock stop,threeway switch 400, three openings of the trident pipeline 403 on stop,threeway switch 400 are concordant with the opening of three joints on cylindrical shell 301 inwall, when handle plate 401 points to lateral bending joint 304 side, and the major axis of handle plate 401 and outer cone locked joints 302 and female cone joint 303 coincide central axis time, trident pipeline 403 is communicated with outer cone locked joints 302 and lateral bending joint 304, when by handle plate 401, inwardly cone joint 303 direction stirs 60 degree, operator is felt, and groove 408 on stop,threeway switch 400 and the raised line 305 on Y-shaped three-way pipe 300 engage each other generation when having an incarceration sense, now illustrate that stop,threeway switch 400 is rotated in place, the trident pipeline 403 of stop,threeway switch 400 is communicated with outer cone locked joints 302 and female cone interface 303, and encloses lateral bending joint 304, if when by handle plate 401, outwards cone locking joint 302 direction stirs 60 degree again, when the raised line 305 on the groove 408 on operator feels stop,threeway switch 400 with Y-shaped three-way pipe 300 engage each other generation have an incarceration sense time, describe handle plate 401 and return to initial position, the trident pipeline 403 of stop,threeway switch 400 is communicated with outer cone locked joints 302 and lateral bending joint 304, and closes female cone interface 303.
According to Figure 16 to Figure 19, when operator uses this cover embodiment of the present invention, the first step, confirm that cylindrical shell 100 and piston rod 200 combine respectively to install, Y-shaped three-way pipe 300 and stop,threeway switch 400 combine to be installed, thus makes this technology form one complete to take out injection system and a complete Y-type three way type connected system; Second step, pre-filled syringe fluid cartridge is mounted in the draw-in groove of the supporter 103 on cylindrical shell 100, before fully fixing pre-filled syringe fluid cartridge, what need to rotate pre-filled syringe piston rod in pre-filled syringe fluid cartridge 101 pushes away handle, make to confirm pushing away handle and can not pushing away handle 203 and conflict mutually with taking out in injection system piston rod in semicircle shape fluid cartridge 101 in sliding stroke of pre-filled syringe piston rod, thus avoid pre-filled syringe piston rod push away piston rod in handle and semicircle shape fluid cartridge 101 push away handle 203 mutually movement be affected; 3rd step, notes joint 102 and pre-filled syringe fluid cartridge joint is connected simultaneously with taking out respectively by the female cone joint 303 of Y-shaped three-way pipe 300 and lateral bending joint 304 subsequently; 4th step, connecting needle on the outer cone locked joints 302 of Y-shaped three-way pipe 300.The complete installation of integrated medical Y-type three way type drawing out and infusion device of the present invention, during use, handle plate 401 is pointed to lateral bending joint 304 side, and the major axis of handle plate 401 and outer cone locked joints 302 and female cone joint 303 coincide central axis time, syringe needle and cylindrical shell 100 form single-pass fluid path, operator is by operating the suction that outer piston bar 202 realizes cylindrical shell 100 or the function of injecting, thus the medicament do not affected in pre-filled syringe fluid cartridge, when needs will switch to pre-filled syringe single-pass fluid path, when by handle plate 401, inwardly cone joint 303 direction stirs 60 degree when there being incarceration sense, the hollow of semicircle shape fluid cartridge 101 is for closing, syringe needle on outer cone locked joints 302 and pre-filled syringe fluid cartridge are interconnected, that now can handle pre-filled syringe piston rod pushes away handle to realize injecting of medicament, note cylinder function is taken out if need reuse, by handle plate 401 clawback to initial position, namely the major axis of handle plate 401 and outer cone locked joints 302 and female cone joint 303 coincide central axis time, after feeling incarceration sense, now syringe needle and the conducting of semicircle shape fluid cartridge 100 hollow, wherein syringe needle and pre-filled syringe fluid cartridge are closed.
Claims (7)
1. an integrated Y-type three way type injector for medical purpose, comprise cylindrical shell, piston rod and syringe needle, it is characterized in that: cylindrical shell is set to semicircle shape fluid cartridge, the planar side outer wall of semi-circular cylindrical fluid cartridge is connected with the supporter of half-surrounded, leaving certain gaps uncovered by the economic plan between supporter sidewall, the vertical plane in supporter inside sidewalls face is provided with the gusset that four roads are equidistant, pre-filled syringe fluid cartridge has been snapped in the supporter of half-surrounded, pre-filled syringe piston rod is provided with in pre-filled syringe fluid cartridge, semicircle shape fluid cartridge circular arc side-wall outer side is connected with the rail plate pedestal parallel with semicircle shape fluid cartridge, guide-track groove is had in rail plate pedestal, guide-track groove cross section is inverted T-shaped, and guide-track groove is less than barrel lenght, in semicircle shape fluid cartridge, piston rod is installed, piston rod is made up of inner piston rod and outer piston bar integral type, inner piston rod and outer piston bar are corresponding to be respectively arranged in semicircle fluid cartridge cavity and guide-track groove, cylindrical shell upper end is connected with Y-shaped three-way pipe, Y-shaped three-way pipe comprises the outer cone locked joints on threeway cylindrical shell top, threeway cylindrical shell bottom is provided with female cone joint, the piston switch pipeline of triple cylinder side bent sub and threeway cylindrical shell centre, movable stop,threeway switch is plugged with in piston switch pipeline, the centrage of the outer cone locked joints on top and the female cone joint of bottom overlaps, pre-filled syringe fluid cartridge is provided with pre-filled syringe fluid cartridge joint, pre-filled syringe fluid cartridge joint is connected with lateral bending joint, semicircle shape fluid cartridge is provided with takes out note joint, take out note joint to be connected with female cone joint, outer cone locked joints is connected with syringe needle.
2. integrated Y-type three way type injector for medical purpose as claimed in claim 1, is characterized in that: described breach distance is slightly less than pre-filled syringe fluid cartridge diameter.
3. integrated Y-type three way type injector for medical purpose as claimed in claim 1, it is characterized in that: described cylindrical shell bottom surface is connected with the dactylostyle of rhombus tabular, dactylostyle is perpendicular to cylindrical shell, dactylostyle distally has far-end slotted eye to near-end, middle slotted eye and near-end slotted eye, far-end slotted eye, middle slotted eye is all not identical with near-end slotted eye internal diameter, far-end slotted eye, the aperture of middle slotted eye and near-end slotted eye and thickness are greater than external diameter and the thickness of pre-filled syringe fluid cartridge lower surface evagination annular shirt rim, in far-end slotted eye and supporter, a gusset combines together, near-end slotted eye is the slotted eye of shape as character cut in bas-relief, near-end slotted eye is slightly larger than the sectional dimension of pre-filled syringe piston rod.
4. integrated Y-type three way type injector for medical purpose as claimed in claim 1, it is characterized in that: described piston rod is made up of the handle integral type that pushes away of inner piston rod and outer piston bar and trapezoidal tabular, inner piston rod distal face is semicircle piston plate, semicircle piston plate matches with semicircle shape fluid cartridge inner chamber body, inner piston rod is two orthogonal one-tenth crosses, the wide gusset that width is different and narrow gusset are formed, cross searching overlaps with the geometric center of semicircle piston plate, the plate face of wide gusset is parallel with the straight flange of semicircle piston plate, the width in wide gusset plate face is slightly less than semicircle piston plate width, the width in narrow gusset plate face is also slightly less than semicircle piston plate width, the length of inner piston rod is greater than the length of semicircle fluid cartridge, concrete outer piston bar is an arc, the Distance geometry direction of its outer piston bar and inner piston rod should be that guide-track groove is consistent with the Distance geometry direction of semicircle fluid cartridge cavity, the upper end lateral surface of outer piston bar is provided with the anti-skidding raised line of transverse direction of parallel array, stringer raised line is provided with in the middle part of outer piston bar medial surface, stringer raised line upper end is provided with T-shaped projection, the length of outer piston bar is less than inner piston rod length, the width of outer piston bar is identical with guide-track groove width, trapezoidal tabular pushes away the short side of handle and outer piston bar lower end links together, the long side that trapezoidal tabular pushes away handle is concordant with the edge, narrow gusset face of inner piston rod, the stringer raised line of outer piston bar medial surface and T-shaped projection embed in guide-track groove.
5. integrated Y-type three way type injector for medical purpose as claimed in claim 1, is characterized in that: described outer cone locked joints and female cone joint are 6% female Luer of standard.
6. integrated Y-type three way type injector for medical purpose as claimed in claim 1, it is characterized in that: described Y-shaped three-way pipe two ends caliber is slightly larger than middle caliber, Y-shaped three-way pipe side inwall is distributed with the raised line parallel with piston switch pipeline transverse axis, the opposite side inwall of Y-shaped three-way pipe is provided with the ring-type raised line with piston switch pipeline concentric, tapped collar is provided with outside outer cone locked joints, lateral bending joint lower end is a female cone interface, female cone interface and female cone joint arranged in parallel, lateral bending joint lower surface is concordant with female cone joint lower surface, lateral bending upper end of joint is for bending to oval column structure, and lateral bending upper end of joint is connected to the outer wall of Y-shaped three-way pipe, the central shaft of the lateral bending joint of oval column structure becomes 60 degree of angles with the central shaft that outer cone locked joints and female cone joint overlap, and the piston switch pipeline transverse axis of central shaft all with middle of the central shaft of lateral bending joint and outer cone locked joints and the coincidence of female cone joint is crossing, the lateral bending upper end of joint inside of oval column structure is provided with along the through entrance hole three of oval column structure side bent sub axis.
7. integrated Y-type three way type injector for medical purpose as claimed in claim 1, it is characterized in that: described stop,threeway switch comprises drop-shaped handle plate and switching cylinder, handle plate central authorities are provided with through hole, handle plate surface indicates pipeline communication direction signs, handle plate upper and lower side is provided with the tread plate of array, the bottom surface of handle plate is fixedly connected with switching cylinder, switching drum diameter is identical with the through-hole diameter in handle plate, switching outside diameter of cylinder and stop,threeway switch internal diameter of the pipeline match, the trident pipeline interconnected is provided with in switching cylinder, the opening of trident pipeline respectively with the outer cone locked joints on threeway cylindrical shell top, female cone joint and the triple cylinder side bent sub of threeway cylindrical shell bottom are conducted, the lateral wall, lower surface of switching cylinder is provided with annular groove, handle plate bottom surface is close to switching cylinder lateral wall and is provided with symmetrical projection, symmetrical projection coordinates with the ring rib of the relevant position, medial wall of stop,threeway switch pipeline and locks, switching cylinder lateral wall is provided with groove, texturearunaperpendicular is in described handle plate bottom surface, groove is in being symmetrically distributed on switching cylinder outer wall between two, wherein a pair groove is positioned on the long axis of handle plate, another becomes 30 degree of angles to groove center line line with handle plate long axis.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104225727A true CN104225727A (en) | 2014-12-24 |
| CN104225727B CN104225727B (en) | 2017-10-27 |
Family
ID=52215192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410557154.0A Active CN104225727B (en) | 2014-10-16 | 2014-10-16 | A kind of integrated Y-type three way type injector for medical purpose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104225727B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185729A1 (en) * | 2016-04-29 | 2017-11-02 | 黄翔 | Needle structure |
| CN110327540A (en) * | 2019-08-20 | 2019-10-15 | 谷振荣 | A kind of gynaecology's clinical disinfection device |
| 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 |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | |
| US3774604A (en) * | 1971-01-28 | 1973-11-27 | Demeco Medical Products Ab | Infusion cannula assembly |
| US4044757A (en) * | 1976-01-14 | 1977-08-30 | The Kendall Company | Cholangiography device and method |
| 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 |
| GB2139708A (en) * | 1983-04-29 | 1984-11-14 | Matthew Moncrieff Shepherd | Multi-barrel syringe |
| US4610666A (en) * | 1985-06-24 | 1986-09-09 | Pizzino Joanne L | Dual syringe |
| CN101146561A (en) * | 2005-01-21 | 2008-03-19 | 艾凡卡医学设备公司 | Reciprocating procedure syringes |
| US20090198211A1 (en) * | 2008-02-06 | 2009-08-06 | Intravena, Llc | Convenience IV kits and methods of use |
| US20110166531A1 (en) * | 2010-01-05 | 2011-07-07 | Allergan, Inc. | Syringe |
| US8475403B2 (en) * | 2010-08-03 | 2013-07-02 | Cook Medical Technologies Llc | Aspirating and injecting device with biased closed distal opening |
| CN204106747U (en) * | 2014-10-16 | 2015-01-21 | 杭州美中疾病基因研究院有限公司 | A kind of integrated Y-type three way type injector for medical purpose |
-
2014
- 2014-10-16 CN CN201410557154.0A patent/CN104225727B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | |
| US3774604A (en) * | 1971-01-28 | 1973-11-27 | Demeco Medical Products Ab | Infusion cannula assembly |
| US4044757A (en) * | 1976-01-14 | 1977-08-30 | The Kendall Company | Cholangiography device and method |
| 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 |
| GB2139708A (en) * | 1983-04-29 | 1984-11-14 | Matthew Moncrieff Shepherd | Multi-barrel syringe |
| US4610666A (en) * | 1985-06-24 | 1986-09-09 | Pizzino Joanne L | Dual syringe |
| CN101146561A (en) * | 2005-01-21 | 2008-03-19 | 艾凡卡医学设备公司 | Reciprocating procedure syringes |
| US20090198211A1 (en) * | 2008-02-06 | 2009-08-06 | Intravena, Llc | Convenience IV kits and methods of use |
| US20110166531A1 (en) * | 2010-01-05 | 2011-07-07 | Allergan, Inc. | Syringe |
| US8475403B2 (en) * | 2010-08-03 | 2013-07-02 | Cook Medical Technologies Llc | Aspirating and injecting device with biased closed distal opening |
| CN204106747U (en) * | 2014-10-16 | 2015-01-21 | 杭州美中疾病基因研究院有限公司 | A kind of integrated Y-type three way type injector for medical purpose |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185729A1 (en) * | 2016-04-29 | 2017-11-02 | 黄翔 | Needle structure |
| CN110327540A (en) * | 2019-08-20 | 2019-10-15 | 谷振荣 | A kind of gynaecology's clinical disinfection device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104225727B (en) | 2017-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8465461B2 (en) | Blunt needle safety drug delivery system | |
| JP5670242B2 (en) | Drug preparation tool | |
| CN100542618C (en) | Liquid co-infusion device | |
| US10912890B2 (en) | Medical delivery device | |
| JP4757951B1 (en) | Two-chamber syringe | |
| CN107205843A (en) | General syringe platform | |
| CN105188636A (en) | Medicament container carrier and adapter | |
| CN104717993A (en) | Multi-chamber syringe | |
| CN104225727A (en) | Integrated Y type three-way medical injector | |
| CN204106747U (en) | A kind of integrated Y-type three way type injector for medical purpose | |
| CN109152699A (en) | Double bottle commutator sub-assemblies including identical pairs of vial adapter | |
| CN205198574U (en) | Infusion is with mixing medicine mouth | |
| JP2020096957A (en) | Syringe assembly | |
| CN201263820Y (en) | Double-chamber cartridge bottle powder injection pre-filling syringe | |
| CN105748289A (en) | Anti-pollution plastic ampoule dispensing appliance | |
| CN204655638U (en) | Intravenous medication dosing needle set | |
| CN203634583U (en) | Pre-filling injector | |
| JP6255163B2 (en) | Drug preparation tool | |
| CN104587553A (en) | Intravenous medication liquid preparing needle | |
| CN203915633U (en) | A kind of pre-filled catheter flusher | |
| CN203915649U (en) | A kind of core bar for pre-filled catheter flusher | |
| CN203208444U (en) | Medical connecting pipe provided with multiple input channels | |
| CN215134931U (en) | Device for realizing connection between multiple tubes of syringe | |
| CN216855248U (en) | Portable medicine ampoule syringe subassembly | |
| JPH1194103A (en) | Medically used cock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Wei Inventor after: Liu Hao Inventor after: Du Feiya Inventor before: Chen Wei Inventor before: Liu Hao |