CN103961770A - Disposable germfree self-destruction type liquid medicine injector - Google Patents
Disposable germfree self-destruction type liquid medicine injector Download PDFInfo
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- CN103961770A CN103961770A CN201410137017.1A CN201410137017A CN103961770A CN 103961770 A CN103961770 A CN 103961770A CN 201410137017 A CN201410137017 A CN 201410137017A CN 103961770 A CN103961770 A CN 103961770A
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Abstract
The invention discloses a disposable germfree self-destruction type liquid medicine injector. A liquid outlet head is arranged at the front end of a sleeve. A liquid outlet channel is arranged in the liquid outlet head. A piston body is arranged in the sleeve. A push-pull rod is connected with a piston head through a connecting rod. The diameter of the connecting rod is smaller than the diameter of the push-pull rod. A clamping rod extends from the front end of the piston head. A clamping head extends from the front end of the clamping rod. The diameter of the clamping head becomes larger gradually from front to back, smooth transition is achieved on the clamping head, and therefore a conical structure is formed. The diameter of the rear end of the clamping head is larger than the diameter of the clamping rod and the diameter of the liquid outlet channel. An axially penetrating groove penetrates through the clamping rod and the clamping head. Under the action of pushing force, the clamping head conducts radial shrinkage at the position of the axially penetrating groove so as to pass through the liquid outlet channel. After passing through the liquid outlet channel, the clamping head recovers in the radial direction and is clamped at the end of the liquid outlet head. Under the action of pulling force, the push-pull rod and the piston head are disconnected at the position where the push-pull rod and the piston head are connected through the connecting rod, and then self destruction is achieved. According to the disposable germfree self-destruction type liquid medicine injector, the structure is simple, injection is accurate, self destruction is thorough, and practical popularization and application is facilitated.
Description
Technical field
The present invention relates to self-destruction syringe technical field, relate in particular to the aseptic type self-destroyed molten syringe of a kind of disposable use.
Background technology
Syringe is the medical apparatus and instruments that in curative activity, people often use, and in order to prevent cross infection, disposable syringe more and more receives people's concern.At present, on market, there is the disposable syringe of various ways, these syringes are just abandoned afterwards in use, not reproducible use, but in actual use, the phenomenon that disposable syringe after use is sold again through irrigation and disinfection with after repacking is very general, and the syringe after use reenters medical market and can cause injector's cross infection, and people's life and health in serious threat.
Summary of the invention
The technical problem existing based on background technology, the present invention proposes the aseptic type self-destroyed molten syringe of a kind of disposable use, and it is simple in structure, and accurately, self-destruction is thorough, is convenient to actual applying in injection.
The aseptic type self-destroyed molten syringe of the disposable use of one that the present invention proposes, comprises sleeve, piston body, push-pull bar, connecting rod, clamping bar, clamping joint, needle stand; Barrel forward end is provided with fluid termination, in fluid termination, is provided with liquid outlet channel, and needle stand is arranged on fluid termination; Piston body is located in sleeve, and piston body comprises piston head and the rubber stopper that is enclosed within piston head periphery, and rubber stopper is engaged in sleeve lining; Between push-pull bar and piston head, be connected by connecting rod, the diameter of connecting rod is less than the diameter of push-pull bar; Clamping bar extends and forms from piston head front end, clamping joint extends and forms from clamping bar front end, the diameter of clamping joint increases gradually from front to back and rounding off forms pyramidal structure, the diameter at clamping joint middle part is greater than the diameter of clamping bar and the diameter of liquid outlet channel, runs through clamping bar and clamping joint and is provided with axial through grooves; Under thrust clamping joint in axial through grooves place radial contraction to pass through liquid outlet channel, radially replying by clamping joint after liquid outlet channel, clamping joint rear end is stuck in liquid outlet cephalic par, disconnects self-destruction at pulling force effect lower push-pull bar and piston head in the junction of connecting rod.
Preferably, be provided with self-destruction groove/trace at connecting rod middle part, and/or, self-destruction groove/trace be provided with at connecting rod with the end that is connected of push-pull bar and/or piston head.
Preferably, be provided with at least one circle projection in piston head periphery, in rubber stopper, be provided with at least one circle groove week, the groove of rubber stopper coordinates with the projection of piston head.
In the present invention, between push-pull bar and piston head, be connected by connecting rod, the diameter of connecting rod is less than the diameter of push-pull bar, clamping bar extends and forms from piston head front end, clamping joint extends and forms from clamping bar front end, the diameter of clamping joint increases gradually from front to back and rounding off forms pyramidal structure, the diameter at clamping joint middle part is greater than the diameter of clamping bar and the diameter of liquid outlet channel, runs through clamping bar and clamping joint and is provided with axial through grooves, in injection process, promote forward push-pull bar, piston body travels forward and promotes molten medicine in sleeve and injects from liquid outlet channel output, in this pushing course, clamping joint is positioned at piston body front end and the liquid outlet channel of first conflicting, because the diameter at clamping joint middle part is greater than the diameter of liquid outlet channel, thereby clamping joint diminishes the diameter of clamping joint in the inside radial contraction in axial through grooves place when by liquid outlet channel passes through liquid outlet channel smoothly, replying by the outward radial under elastic reaction of clamping joint after liquid outlet channel, because the diameter at clamping joint middle part is greater than the diameter of liquid outlet channel, clamping joint rear end may be stuck in liquid outlet cephalic par, then, under reversal interlocking relay effect, because being stuck in liquid outlet cephalic par, clamping joint rear end cannot move to the back-end, push-pull bar and piston head disconnect self-destruction in the junction of connecting rod, between push-pull bar and piston body, disconnect, piston body is stayed in sleeve, cannot reuse, the thorough self-destruction of syringe, run through clamping bar and clamping joint and be provided with axial through grooves, the molten medicine in injection process middle sleeve can all be extruded from axial through grooves, and the molten medicine loss of syringe is few, and injection accurately.
Brief description of the drawings
Fig. 1 is the structural representation of the aseptic type self-destroyed molten medicine self-destruction syringe of disposable use that proposes of the present invention.
Detailed description of the invention
As shown in Figure 1, Fig. 1 is the structural representation of the aseptic type self-destroyed molten syringe of a kind of disposable use that proposes of the present invention.
With reference to Fig. 1, the aseptic type self-destroyed molten syringe of the disposable use of one that the present invention proposes, comprises sleeve 1, piston body 2, push-pull bar 3, connecting rod 4, clamping bar 5, clamping joint 6, needle stand 7; Wherein:
Sleeve 1 front end is provided with fluid termination 10, is provided with liquid outlet channel 11 in fluid termination 10, and needle stand 7 is arranged on fluid termination 10, is provided with guard shield for the protection of the entry needle being arranged on needle stand 7 on needle stand 7; Piston body 2 is located in sleeve 1, and piston body 2 comprises piston head 21 and the rubber stopper 22 that is enclosed within piston head 21 peripheries, and rubber stopper 22 is engaged in sleeve 1 inwall; Molten medicine is equipped with in piston body 2 front portions at sleeve 1;
Between push-pull bar 3 and piston head 21, be connected by connecting rod 4, the diameter of connecting rod 4 is less than the diameter of push-pull bar 3, in the time of specific design, can arrange between connecting rod 4 and push-pull bar 3 and there is less pull-off force, or, between connecting rod 4 and piston head 21, there is less pull-off force, or connecting rod 4 itself has less pull-off force; In self-destruction process, thereby disconnect piston body 2 is stayed in sleeve 1 between push-pull bar 3 and piston head 21, cannot reusable technique effect thereby reach;
Clamping bar 5 extends and forms from piston head 21 forward end, clamping joint 6 extends and forms from clamping bar 5 forward end, the diameter of clamping joint 6 increases gradually from front to back and rounding off forms pyramidal structure, the rear end face that clamping joint 6 can be set is planar end surface, the diameter at clamping joint 6 middle parts is greater than the diameter of clamping bar 5 and the diameter of liquid outlet channel 11, runs through clamping bar 5 and clamping joint 6 is provided with axial through grooves 56;
Because clamping joint 6 middle parts are greater than the diameter of liquid outlet channel 11 to the diameter of rear end, by axial through grooves 56 is set, in the time of clamping joint 6 conflict liquid outlet channel, thereby clamping joint 6 inwardly carries out radial contraction and passes through smoothly liquid outlet channel wearing groove 56 places, after clamping joint 6 is by liquid outlet channel 11, clamping joint 6 outward radial under elastic force effect returns back to original-pack, the rear end face of clamping joint is planar end surface, clamping joint 6 rear ends can stably be stuck in 10 ends, fluid termination, like this, disconnect in the junction of connecting rod 4 at pulling force effect lower push-pull bar 3 and piston head 21, piston body 2 is stayed in sleeve 1 and cannot be reused, realize the self-destruction of syringe.
In injection process, promote forward push-pull bar, piston body travels forward and promotes molten medicine in sleeve and injects from liquid outlet channel output, in this pushing course, clamping joint is positioned at piston body front end and the liquid outlet channel of first conflicting, because the diameter at clamping joint middle part is greater than the diameter of liquid outlet channel, thereby clamping joint diminishes the diameter of clamping joint in the inside radial contraction in axial through grooves place when by liquid outlet channel passes through liquid outlet channel smoothly, replying by the outward radial under elastic reaction of clamping joint after liquid outlet channel, because the diameter at clamping joint middle part is greater than the diameter of liquid outlet channel, clamping joint rear end may be stuck in liquid outlet cephalic par, then, under reversal interlocking relay effect, because being stuck in liquid outlet cephalic par, clamping joint rear end cannot move to the back-end, push-pull bar and piston head disconnect self-destruction in the junction of connecting rod, between push-pull bar and piston body, disconnect, piston body is stayed in sleeve, cannot reuse, the thorough self-destruction of syringe.
In the above-described embodiments, run through clamping bar and clamping joint and be provided with axial through grooves, the molten medicine in injection process middle sleeve can all be extruded from axial through grooves, and the molten medicine loss of syringe is few, and injection accurately.
In specific embodiment, less pull-off force can be realized in the following way, is provided with self-destruction groove/trace at connecting rod 4 middle parts, and/or, be provided with self-destruction groove/trace at connecting rod 4 with the end that is connected of push-pull bar 3 and/or piston head 21, can be more laborsaving in self-destruction process, be convenient to self-destruction operation.
Be provided with at least one circle projection in piston head 21 peripheries, interior week of rubber stopper 22 is provided with at least one circle groove, and the groove of rubber stopper 22 coordinates with the projection of piston head 21, and rubber stopper 22 is firmly arranged on piston head 21.
The above; it is only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. the aseptic type self-destroyed molten syringe of disposable use, is characterized in that, comprises sleeve (1), piston body (2), push-pull bar (3), connecting rod (4), clamping bar (5), clamping joint (6), needle stand (7); Sleeve (1) front end is provided with fluid termination (10), is provided with liquid outlet channel (11) in fluid termination (10), and needle stand (7) is arranged on fluid termination (10); Piston body (2) is located in sleeve (1), and piston body (2) comprises piston head (21) and be enclosed within the rubber stopper (22) of piston head (21) periphery, and rubber stopper (22) is engaged in sleeve (1) inwall; Between push-pull bar (3) and piston head (21), be connected by connecting rod (4), the diameter of connecting rod (4) is less than the diameter of push-pull bar (3); Clamping bar (5) extends and forms from piston head (21) forward end, clamping joint (6) extends and forms from clamping bar (5) forward end, the diameter of clamping joint (6) increases gradually from front to back and rounding off forms pyramidal structure, the diameter at clamping joint (6) middle part is greater than the diameter of clamping bar (5) and the diameter of liquid outlet channel (11), runs through clamping bar (5) and clamping joint (6) is provided with axial through grooves (56); Clamping joint under thrust (6) is located radial contraction to pass through liquid outlet channel (10) in axial through grooves (56), by liquid outlet channel (10) afterwards clamping joint (6) radially reply, clamping joint (6) rear end is stuck in end, fluid termination (10), disconnects self-destruction at pulling force effect lower push-pull bar (3) and piston head (21) in the junction of connecting rod (4).
2. the aseptic type self-destroyed molten syringe of the disposable use of one according to claim 1, it is characterized in that, be provided with self-destruction groove/trace at connecting rod (4) middle part, and/or, self-destruction groove/trace be provided with at connecting rod (4) with the end that is connected of push-pull bar (3) and/or piston head (21).
3. the aseptic type self-destroyed molten syringe of disposable use according to claim 1, it is characterized in that, be provided with at least one circle projection in piston head (21) periphery, interior week of rubber stopper (22) is provided with at least one circle groove, and the groove of rubber stopper (22) coordinates with the projection of piston head (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137017.1A CN103961770A (en) | 2014-04-04 | 2014-04-04 | Disposable germfree self-destruction type liquid medicine injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137017.1A CN103961770A (en) | 2014-04-04 | 2014-04-04 | Disposable germfree self-destruction type liquid medicine injector |
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| Publication Number | Publication Date |
|---|---|
| CN103961770A true CN103961770A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410137017.1A Pending CN103961770A (en) | 2014-04-04 | 2014-04-04 | Disposable germfree self-destruction type liquid medicine injector |
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| CN (1) | CN103961770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436381A (en) * | 2014-10-22 | 2015-03-25 | 浙江理工大学 | Self-destroying type syringe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251535A (en) * | 1996-07-18 | 2000-04-26 | 安全医疗产品公司 | Disposable syringe device |
| WO2004039441A2 (en) * | 2002-10-30 | 2004-05-13 | Jun Piao Teng | Vacuum auto-retractable safety syringe |
| CN1788804A (en) * | 2004-12-17 | 2006-06-21 | 李福良 | Safety syringe and method of use |
| CN2880125Y (en) * | 2006-01-12 | 2007-03-21 | 林作钱 | Self-distruction type injuctor |
-
2014
- 2014-04-04 CN CN201410137017.1A patent/CN103961770A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251535A (en) * | 1996-07-18 | 2000-04-26 | 安全医疗产品公司 | Disposable syringe device |
| WO2004039441A2 (en) * | 2002-10-30 | 2004-05-13 | Jun Piao Teng | Vacuum auto-retractable safety syringe |
| CN1788804A (en) * | 2004-12-17 | 2006-06-21 | 李福良 | Safety syringe and method of use |
| CN2880125Y (en) * | 2006-01-12 | 2007-03-21 | 林作钱 | Self-distruction type injuctor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436381A (en) * | 2014-10-22 | 2015-03-25 | 浙江理工大学 | Self-destroying type syringe |
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Application publication date: 20140806 |