CN2701455Y - Disposable syringe - Google Patents
Disposable syringe Download PDFInfo
- Publication number
- CN2701455Y CN2701455Y CN 200420059605 CN200420059605U CN2701455Y CN 2701455 Y CN2701455 Y CN 2701455Y CN 200420059605 CN200420059605 CN 200420059605 CN 200420059605 U CN200420059605 U CN 200420059605U CN 2701455 Y CN2701455 Y CN 2701455Y
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- CN
- China
- Prior art keywords
- push rod
- assembling
- holder
- syringe
- passage
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- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable injector, which provides an apparatus whose rubber plug can not be recombined after the rubber plug is separated from a push rod and which can ensure the one-time use and can make medium be injected into the human body. The disposable injector comprises the push rod, a rotary guide block, a fixing base, a rubber plug, a syringe and a needle stand which is provided with a needle and is assembled and fixed to one end of the syringe. The two ends of the rotary guide block are a push rod assembling end and a fixing base assembling end, and the periphery thereof is provided with an N-shaped groove; the position adjacent to the push rod assembling end is obliquely provided with a first passage towards the fixing base assembling end, the position adjacent to the fixing base assembling end is provided with a second passage towards the push rod assembling end, a third passage is obliquely provided between the position adjacent to the fixing base assembling end and the position adjacent to the push rod assembling end, the fixing base assembling end is provided with a forth passage in longitudinal direction and the fixing base assembling end is opened by the forth passage, and the position of the first passage is provided with an assembling passage towards the fixing base assembling end. The two ends of the fixing base is provided with a groove which can be jammed by the rotary guide block and is convexly provided with an assembling block which is connected with the rubber plug; the inside of the groove is convexly provided with a convex column which is in the groove jammed by the rotary guide block.
Description
Technical field
This utility model belongs to imports intravital apparatus with medium, particularly a kind of disposable syringe.
Background technology
Often use syringe in order to reach therapeutic effect in the medical treatment, required solution is comprised in nutrient or the medicament input patient body.Yet, owing to may have the source of disease bacterium in patient's body, and sharp keen syringe needle stabs the healthcare givers easily, causes the healthcare givers to infect the source of disease bacterium; Unworthy dealer is perhaps arranged in order to save cost of manufacture, exercise usefulness again and collect used syringe, the therefore relevant most design of manufacturer only can expendable syringe.
General syringe comprises syringe needle, syringe and push rod.Push rod one end is provided with the rubber stopper that is assembled in the syringe.Infect for fear of the healthcare givers, syringe now mostly is use and once promptly abandons.And commonly use prevent design that syringe reuses mostly be greatly the syringe of syringe needle can being withdrawn inner and can't be again with the design of release syringe.Yet designed in order to achieve the above object syringe construction is comparatively complicated, so the cost of manufacture height, and some need cooperate different use steps just can reach to prevent the effect that is used once more.
As shown in figure 11, the syringe that can not re-use that United States Patent (USP) case the 4th, 699,614 (' 614) number discloses, on its push rod 80 an end inwall of assembling rubber stopper 82 be arranged be the Z shape lead 84; Be fixed with fixed bar 86 with push rod 80 bonded ends on the rubber stopper 82, the free end of fixed bar 86 is fixed with two parallel protrusions 88, and the rotating seat 87 that between two protrusions 88, is pivoted, rotating seat 87 radially convexes with two and can rotate and be located at push rod 80 and lead projections 89 in 84.When promoting push rod 80, the projection 89 on rubber stopper 82 rotating seats 87 promptly moves along leading 84, and breaks away from and lead 84 in using syringe projection in season 89 at last, can make push rod 80 separate with rubber stopper 82 and can not re-use.
As shown in figure 12, the syringe that can not re-use of United States Patent (USP) case the 4th, 883,466 (' 466) number exposure is in using back release rod 70 and rubber stopper 72, it is for convexing with projection 74 in push rod 70 and rubber stopper 72 bonded ends, and projection 74 surfaces are arranged with two and Z-shaped lead 75; Be assembled with brace 76 in push rod 70 and 72 of rubber stoppers in addition, brace 76 is the Contraband font, inwardly be convexly equipped with the rotatable lug 77 of leading on push rod 70 projections 74 in 75 that is assembled into respectively in Contraband font two free ends, and outwards be convexly equipped with connecting rod 79 in blind end 78, the free end 790 of connecting rod 79 is arrow shaped, makes brace 76 be hubbed in the rubber stopper 72 by the connecting rod 79 with arrow shaped free end 790.When push rod 70 promoted in the syringe (not shown), lug 77 promptly moved along leading 75, and made lug 77 break away from after using at last to lead 75 and make push rod 70 separate with rubber stopper 72, so syringe promptly can't re-use.
Yet above-mentioned to commonly use the syringe construction that can not re-use still complicated, especially the 4th, 699, the syringe cost of manufacture height of ' No. 614 patent exposure, and making is comparatively numerous and diverse, though the 4th, 883, ' No. 466 structure is than the ' 4, and 699, No. 614 patent structure is simple, yet it is obvious with lug 77 structures owing to leading 75, if have the inclination the personage, still lug 77 can be aligned and lead 75 and once more push rod 70 is combined with rubber stopper 72, so have much room for improvement.
Summary of the invention
The purpose of this utility model provide a kind of rubber stopper with after push rod separates can't be again in conjunction with, guarantee nonrecoverable disposable syringe.
This utility model comprises push rod, rotation guide block, holder, rubber stopper, syringe and has syringe needle and the needle stand of syringe one end is fixed in assembling; Push rod, rotation guide block, holder and rubber stopper are assembled in the syringe; The rotation guide block is cylindric, the holder assembling end that its two ends are respectively the push rod assembling end that is connected with push rod and are connected with holder, its periphery is offered at least one and is crooked fluting, fluting slightly is the N font, it holds the oblique first passage of offering to nearly holder assembling end place by nearly push rod assembling end place to the holder assembling, offer one section second channel longitudinally by nearly holder assembling end place to push rod assembling extreme direction again, oblique then offering to the third channel of nearly push rod assembling end then offered longitudinally four-way and opened holder assembling end to holder assembling end; First passage offers to holder assembling extreme direction and assembles passage longitudinally, and the degree of depth of the nearly first passage of assembling passage is shallower than the holder assembling end degree of depth; The holder two ends are offered groove corresponding and that snap in for the rotation guide block respectively and are convexly equipped with the assembled block that is connected with rubber stopper; Inside grooves is convexly equipped with the projection at least one fluting that is snapped into the rotation guide block.
Wherein:
A kind of disposable syringe, it comprises push rod, rotation guide block, holder, rubber stopper, syringe and has syringe needle and the needle stand of syringe one end is fixed in assembling; Push rod, rotation guide block, holder and rubber stopper are assembled in the syringe; The rotation guide block is cylindric, the holder assembling end that its two ends are respectively the push rod assembling end that is connected with push rod and are connected with holder, and its periphery convexes with at least one projection; The holder two ends are offered groove corresponding and that snap in for the rotation guide block respectively and are convexly equipped with the assembled block that is connected with rubber stopper, offer at least one was snapped into and was bending at least one projection of rotation guide block periphery fluting in the groove, fluting slightly is the N font, its by the groove bottom to the oblique first passage that offers of opening to open end, offer one section second channel longitudinally by open end to the direction of bottom, the oblique then third channel of offering to nearly bottom, and offer longitudinally four-way and open opening to opening; First passage is offered to the opening direction and is assembled passage longitudinally, and the degree of depth of the nearly first passage of assembling passage is shallower than the holder assembling end degree of depth.
Push rod one end center is convexly equipped with and rotates the assembling bar that guide block articulates, and assembling bar free end is for being sagittate fixture block; Rotation guide block center is offered and push rod bonded the wearing that be pivoted, wear nearly push rod assembling end internal diameter and the corresponding and cooperation of push rod assembling bar external diameter, and form shoulder in its junction, and be provided with the fixture block that makes things convenient for push rod assembling bar at push rod assembling end and be assembled in guiding road in wearing smoothly in wearing.
The groove ends of holder is pivoted with the assembled block end and combines.
Assembled block is convexly equipped with at least one bulge loop of filling in the rubber stopper.
Because this utility model comprises push rod, rotation guide block, holder, rubber stopper, syringe and has syringe needle and the needle stand of syringe one end is fixed in assembling; Rotation guide block two ends are push rod assembling end and holder assembling end, its periphery is offered and is N font fluting, its by nearly push rod assembling end place to the oblique second channel of offering first passage, offering to push rod assembling extreme direction by nearly holder assembling end place of holder assembling end, obliquely offer third channel, offer vertically and open the four-way of holder assembling end and first passage to holder assembling end and offer to holder assembling extreme direction and assemble passage longitudinally to nearly push rod assembling end, the degree of depth of the nearly first passage of assembling passage is shallower than the holder assembling end degree of depth; The holder two ends are offered groove corresponding and that snap in for the rotation guide block respectively and are convexly equipped with the assembled block that is connected with rubber stopper; Inside grooves is convexly equipped with the projection at least one fluting that is snapped into the rotation guide block.Before not using as yet after this utility model assembling is finished, holder inside grooves projection is positioned at the top of first passage, when push rod promotes to make when air is discharged in the syringe toward the needle stand direction, the rotation guide block promptly along rotation so that projection slide to arrive the bottom along first passage, make push rod can continue to promote holder and rubber stopper is shifted the end onto toward the needle stand direction; Can insert the syringe needle of needle stand in the container of required draw solution this moment, again with push rod toward drawing and make syringe be full of solution away from needle stand 0 direction, at this moment, projection moves and enters third channel along second channel, makes to rotate the guide block rotation and make projection move along third channel; Last then with syringe needle insert required execute the input solution individuality; Push away toward the needle stand direction and promote push rod once more, this moment, projection was promptly along moving in four-way, and promote holder and rubber stopper in the lump and solution is imported in the individuality, because projection has skidded off fluting, so syringe after using, its holder separates with the rotation guide block, therefore when push rod oppositely outwards spurs, can not spur holder and rubber stopper in the lump, and common people also are difficult in does not have machine to help down projection in fluting, so this utility model can not be exercised again usefulness, promptly by the design of projection and fluting, and make push rod after once using, promptly separate with rubber stopper, and can not reuse.With rubber stopper after push rod separates can't be again in conjunction with, guarantee once to use, thereby reach the purpose of this utility model.
Description of drawings
Fig. 1, be this utility model decomposition texture schematic isometric.
Fig. 2, be this utility model combination block structural representation axonometric chart.
Fig. 3, be this utility model spill spin block structural representation cutaway view.
Fig. 4, be this utility model spill spin block part-structure diagrammatic side view.
Fig. 5, be this utility model rotation guide block and fixed seat structure schematic sectional view (push rod and rubber stopper do not use preceding projection to be arranged in the fluting position).
Fig. 6, be this utility model rotation guide block and fixed seat structure schematic sectional view (projection operating state in slotting when the needle stand direction promotes push rod and prepares draw solution).
Fig. 7, be this utility model rotation guide block and fixed seat structure schematic sectional view (projection operating state in slotting when push rod is pulled away from needle stand direction draw solution leading portion).
Fig. 8, be this utility model rotation guide block and fixed seat structure schematic sectional view (projection operating state in slotting when push rod is pulled away from needle stand direction draw solution back segment).
Fig. 9, be this utility model rotation guide block and fixed seat structure schematic sectional view (projection operating state in slotting when needle stand direction promotion push rod is got solution).
Figure 10, be this utility model decomposition texture schematic isometric (rotation guide block periphery be convexly equipped with projection).
Figure 11, can not re-use injector push-rod and rubber stopper decomposition texture diagrammatic side view for first kind of commonly using.
Figure 12, can not re-use injector push-rod and rubber stopper decomposition texture diagrammatic side view for second kind of commonly using.
The specific embodiment
As shown in Figure 1 and Figure 2, this utility model comprises push rod 10, rotation guide block 20, holder 30, rubber stopper 40, syringe 50 and needle stand 60.
As shown in figure 10, also can convex with at least one projection 29 in rotation guide block 20 ' periphery.
As shown in figure 10, also can in holder 30 ' groove 32 ' in offer the fluting 36, fluting 36 slightly is the N font, its by groove 32 ' bottom to the oblique first passage (not giving numbering) that offers of opening to open end, offer one section second channel (not giving numbering) longitudinally by open end to the direction of bottom, the oblique then third channel of offering to nearly bottom (not giving numbering), and offer longitudinally four-way (not giving numbering) and open opening to opening.Preferably, first passage is offered to the opening direction and is assembled passage (not giving numbering) longitudinally, the depth as shallow of the nearly first passage of assembling passage.Rotation guide block 20 ' be snapped into groove 32 ' in, and order rotation guide block 20 ' on projection 29 be snapped into fluting 36.
Assembled block 34 is in order to assemble fixedly rubber stopper 40, and preferably, assembled block 34 is convexly equipped with at least one bulge loop of filling in the rubber stopper 40, preferably, and the combination that is pivoted mutually of groove 32 ends of holder 30 and assembled block 34 ends.
As shown in Figure 5, before not using as yet after this utility model assembling is finished, holder 30 grooves 32 inner projections 33 are positioned at the top of first passage 25, and assembling passage 23 is in order to make when assembling, the convenient top that projection 33 is arrived first passage 25 along assembling passage 23, because assembling passage 23 has the darker degree of depth in nearly holder assembling end, therefore align easily and make projection 33 enter assembling passage 23 and enter first passage 25 tops along assembling passage 23, because the assembling passage 23 back segment place degree of depth are extremely shallow, therefore when factory, can energetically projection 33 be assembled in the first passage 25 along assembling passage 23 by machine; When push rod 10 promotes to make syringe 50 in the air discharge toward needle stand 60 directions, at this moment, as shown in Figure 6, for being slided along first passage 25, projection 33 arrives the bottom, therefore rotate guide block 20 promptly along rotation, reaching this purpose, this moment, push rod 10 can continue to promote holder 30 and rubber stopper 40 is shifted the end onto toward needle stand 60 directions; Can insert the syringe needle 62 of needle stand 60 in the container of required draw solution this moment, again with push rod 10 toward drawing away from needle stand 60 directions and making syringe 50 be full of solution, at this moment, as shown in Figure 7, projection 33 moves along second channel 26, because second channel 26 linearly, therefore rotate guide block and can not rotate for 20 this moments; Continue pulling again and push away 10, as shown in Figure 8, make projection 33 be entered third channel 27, make and rotate guide block 20 rotations and make projection 33 move along third channel 27; Last then syringe needle 62 is inserted the required individuality of executing input solution; Push away toward needle stand 60 directions and promote push rod 10 once more, as shown in Figure 9, this moment, projection 33 was promptly along moving in four-way 28, and promote holder 30 and rubber stopper 40 in the lump and solution is imported in the individuality, because projection 33 has skidded off fluting 24, so syringe after using, its holder 30 has separated with rotation guide block 20, therefore when push rod 10 oppositely outwards spurs, can not spur holder 30 and rubber stopper 40 in the lump, and common people also are difficult in does not have machine to help down 33 pairs of projections in fluting 24, so this utility model can not be exercised usefulness again.As shown in figure 10, rotation guide block 20 ' periphery convex with at least one projection 29 cooperate holders 30 ' groove 32 ' in the fluting 36 offered, also have identical mechanism of action.
In sum, this utility model is by the design of projection and fluting, and makes push rod promptly separate after once using with rubber stopper, and can not reuse.
Claims (8)
1, a kind of disposable syringe, it comprises push rod, rubber stopper, syringe and has syringe needle and the needle stand of syringe one end is fixed in assembling; Push rod and rubber stopper are assembled in the syringe; It is characterized in that being provided with in the described syringe rotation guide block and holder; The rotation guide block is cylindric, the holder assembling end that its two ends are respectively the push rod assembling end that is connected with push rod and are connected with holder, its periphery is offered at least one and is crooked fluting, fluting slightly is the N font, it holds the oblique first passage of offering to nearly holder assembling end place by nearly push rod assembling end place to the holder assembling, offer one section second channel longitudinally by nearly holder assembling end place to push rod assembling extreme direction again, oblique then offering to the third channel of nearly push rod assembling end then offered longitudinally four-way and opened holder assembling end to holder assembling end; First passage offers to holder assembling extreme direction and assembles passage longitudinally, and the degree of depth of the nearly first passage of assembling passage is shallower than the holder assembling end degree of depth; The holder two ends are offered groove corresponding and that snap in for the rotation guide block respectively and are convexly equipped with the assembled block that is connected with rubber stopper; Inside grooves is convexly equipped with the projection at least one fluting that is snapped into the rotation guide block.
2, disposable syringe according to claim 1 is characterized in that described push rod one end center is convexly equipped with and the assembling bar that rotates the guide block pivot joint, and assembling bar free end is for being sagittate fixture block; Rotation guide block center is offered and push rod bonded the wearing that be pivoted, wear nearly push rod assembling end internal diameter and the corresponding and cooperation of push rod assembling bar external diameter, and form shoulder in its junction, and be provided with the fixture block that makes things convenient for push rod assembling bar at push rod assembling end and be assembled in guiding road in wearing smoothly in wearing.
3, disposable syringe according to claim 1, the groove ends that it is characterized in that described holder is pivoted with the assembled block end and combines.
4,, it is characterized in that described assembled block is convexly equipped with at least one bulge loop of filling in the rubber stopper according to claim 2 or 3 described disposable syringes.
5, a kind of disposable syringe, it comprises push rod, rubber stopper, syringe and has syringe needle and the needle stand of syringe one end is fixed in assembling; Push rod is assembled in the syringe; It is characterized in that being provided with in the described syringe rotation guide block and holder; The rotation guide block is cylindric, the holder assembling end that its two ends are respectively the push rod assembling end that is connected with push rod and are connected with holder, and its periphery convexes with at least one projection; The holder two ends are offered groove corresponding and that snap in for the rotation guide block respectively and are convexly equipped with the assembled block that is connected with rubber stopper, offer at least one was snapped into and was bending at least one projection of rotation guide block periphery fluting in the groove, fluting slightly is the N font, its by the groove bottom to the oblique first passage that offers of opening to open end, offer one section second channel longitudinally by open end to the direction of bottom, the oblique then third channel of offering to nearly bottom, and offer longitudinally four-way and open opening to opening; First passage is offered to the opening direction and is assembled passage longitudinally, and the degree of depth of the nearly first passage of assembling passage is shallower than the holder assembling end degree of depth.
6, disposable syringe according to claim 5 is characterized in that described push rod one end center is convexly equipped with and the assembling bar that rotates the guide block pivot joint, and assembling bar free end is for being sagittate fixture block; Rotation guide block center is offered and push rod bonded the wearing that be pivoted, wear nearly push rod assembling end internal diameter and the corresponding and cooperation of push rod assembling bar external diameter, and form shoulder in its junction, and be provided with the fixture block that makes things convenient for push rod assembling bar at push rod assembling end and be assembled in guiding road in wearing smoothly in wearing.
7, disposable syringe according to claim 5, the groove ends that it is characterized in that described holder is pivoted with the assembled block end and combines.
8,, it is characterized in that described assembled block is convexly equipped with at least one bulge loop of filling in the rubber stopper according to claim 6 or 7 described disposable syringes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059605 CN2701455Y (en) | 2004-05-18 | 2004-05-18 | Disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059605 CN2701455Y (en) | 2004-05-18 | 2004-05-18 | Disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2701455Y true CN2701455Y (en) | 2005-05-25 |
Family
ID=34777372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420059605 Expired - Fee Related CN2701455Y (en) | 2004-05-18 | 2004-05-18 | Disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2701455Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020510490A (en) * | 2017-03-13 | 2020-04-09 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Drug delivery device |
-
2004
- 2004-05-18 CN CN 200420059605 patent/CN2701455Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020510490A (en) * | 2017-03-13 | 2020-04-09 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Drug delivery device |
| JP7123961B2 (en) | 2017-03-13 | 2022-08-23 | サノフィ－アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | drug delivery device |
| US11612695B2 (en) | 2017-03-13 | 2023-03-28 | Sanofi-Aventis Deutschland Gmbh | Drug delivery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CAYMAN SHANGDINGJIANTANG STOCK CO., LTD. Free format text: FORMER OWNER: DONGJIANTANG BIOCHEMICAL SCIENCE + TECHNOLOGY CO LTD Effective date: 20060414 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060414 Address after: The Cayman Islands Georgetown Patentee after: Suide Medical Material Sci & Tech Co., Ltd. Address before: Taipei city of Taiwan Province Patentee before: Biotop Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050525 Termination date: 20110518 |