CN208958988U - A kind of novel self-destructing sterilized syringes - Google Patents

Abstract

The utility model provides a kind of novel self-destructing sterilized syringes, is related to injector technology field, including syringe, push-pull rod, sealing piston, and syringe is equipped with the liquid outlet channel being connected with syringe inner cavity, is equipped with inverted beard in liquid outlet channel；Sealing piston is located in syringe, sealing piston is equipped with clamping mechanism corresponding with liquid outlet channel, clamping mechanism includes clamping bar, clamping joint, the diameter of clamping joint is gradually reduced along the direction far from clamping bar, and the maximum gauge of clamping joint is greater than the minimum diameter of inverted beard, the apocenosis passage being connected with syringe inner cavity in clamping mechanism equipped with both ends；Push-pull rod includes quarter butt portion, long bar portion, and sealing piston is installed in quarter butt portion；Long bar portion is connect by the first connector with quarter butt portion point, and quarter butt portion is connect by the second connector with long bar portion point；A kind of novel self-destructing sterilized syringes according to the present utility model, while guaranteeing that syringe Chinese medicine liquid can be used sufficiently, additionally it is possible to realize self-destruction after use.

Description

A kind of novel self-destructing sterilized syringes

Technical field

The utility model relates to injector technology fields, more particularly to a kind of novel self-destructing sterilized syringes.

Background technique

Syringe is a kind of common medical instruments, in order to prevent viral cross-infection, and syringe is all often to use It is not just used after primary.Since existing syringe can not realize self-destruction after use, lead to have part criminal only It will likely take viruliferous syringe by rinsing and repacking and again flow into market, to be easy to cause the intersection of infectious disease Infection causes serious medicine accident to occur.

Utility model content

In order to overcome the drawbacks of the prior art, the utility model provides a kind of novel self-destructing sterilized syringes, is guaranteeing While syringe Chinese medicine liquid can be used sufficiently, additionally it is possible to realize self-destruction after use.

For this purpose, the following technical solution is employed for the utility model:

The utility model provides a kind of novel self-destructing sterilized syringes, including syringe, push-pull rod, sealing piston, institute State that push-pull rod one end is protruded into the syringe, the other end exposes to the syringe, the one end of the syringe far from the push-pull rod It is fixed with outlet end head, the liquid outlet channel being connected with the syringe inner cavity is equipped in the outlet end head, the liquid out is logical The connectivity part of road and the syringe inner cavity is fixedly installed with inverted beard, and direction of the radius edge far from the syringe of the inverted beard is gradually Reduce, the outlet end headgear is equipped with needle stand；The sealing piston is located in the syringe and the sealing piston is positioned at described Push-pull rod is fixed with and liquid out close to the side of the outlet end head, the sealing piston close to one end of the outlet end head The corresponding clamping mechanism in channel, the clamping mechanism include clamping bar, clamping joint, and described clamping bar one end is fixed on described close Envelope piston is on the end of the outlet end head, the other end is fixedly connected with the clamping joint, the diameter edge of the clamping joint Direction far from the clamping bar is gradually reduced and rounding off, and the maximum gauge of the clamping joint is less than the liquid outlet channel Diameter and the maximum gauge of the clamping joint be greater than the minimum diameter of the inverted beard, it is logical equipped with drain in the clamping mechanism Road, the apocenosis passage form liquid outlet through one end of the clamping joint, and the clamping bar side wall, which is equipped with, leads to the drain The feed pathway that road is connected；The push-pull rod includes quarter butt portion, long bar portion, and the quarter butt portion is located at the long bar portion close to institute The side of outlet end head is stated, the long bar portion exposes to the syringe far from the one end in the quarter butt portion, and the sealing piston is solid Loaded on end of the quarter butt portion far from the long bar portion, end recess of the long bar portion close to the quarter butt portion is set for Dingan County There is snap slot；The first connector and the second connector are provided in the snap slot, first connector is located at described fracture The middle part of slot, first connector include the first cylindrical base portion, in the first coniform broken part, first base Portion is fixed on one end in the long bar portion, the other end is fixedly connected with first broken part, first broken part it is another End is connect with the quarter butt portion, and the radius of first broken part is gradually reduced along the direction far from first base portion；It is described The quantity of second connector is two, and two second connectors are symmetrical arranged about first connector, each described the Two connectors include the second cylindrical base portion, in the second coniform broken part, and institute is fixed in second base portion one end It states in quarter butt portion, the other end is fixedly connected with second broken part, second broken part other end and the long bar portion company It connects, the radius of second broken part is gradually reduced along the direction far from second base portion.

In the preferable technical solution of the utility model, the symmetrical two sides of the clamping bar are equipped with the feed pathway, And the feed pathway of the clamping bar two sides is staggered.

In the preferable technical solution of the utility model, the sealing piston lateral wall is equipped with multiple annular recess, described It is inlayed in annular recess and sealing ring is installed, the sealing central spacer setting.

In the preferable technical solution of the utility model, the quantity of the annular recess is at least three, the sealing ring Quantity is at least two.

In the preferable technical solution of the utility model, the long bar portion far from the end in the quarter butt portion be fixed with by Hand, the end of the hand far from the long bar portion of pressing is in concave shaped, one end lateral wall of the syringe far from the outlet end head On be fixed with for the tail plate being used cooperatively by hand.

The utility model has the following beneficial effects:

A kind of novel self-destructing sterilized syringes provided by the utility model, in injection process, to close to the liquid out The direction of end pushes the push-pull rod, so that the sealing piston travels forward and pushes medical fluid in the syringe from described The needle tubing of liquid outlet channel to the needle stand is injected outward；In pushing course, the clamping joint of the clamping mechanism supports first The inverted beard in the liquid outlet channel is touched, since the maximum gauge of the clamping joint is less than the diameter of the liquid outlet channel, and is fallen There must be the characteristic opened around, the clamping joint is enabled to pass through the inverted beard, the at this moment drain in the clamping mechanism The liquid outlet in channel is located in the liquid outlet channel, and the apocenosis passage is connected by feed pathway with the syringe inner cavity It is logical, so that all medical fluids intracavitary in the syringe can pass sequentially through the needle tubing that the apocenosis passage is transported to the needle stand It is interior, to ensure that noresidue medical fluid in syringe, avoid waste；After injection, to the direction far from the outlet end head The push-pull rod is pulled, at this moment since the maximum gauge of the clamping joint is greater than the minimum diameter of the inverted beard, the clamping joint It can not be connected in the liquid outlet channel by the inverted beard and the clamping joint, simultaneously because the long bar portion passes through the One connector is connect with the quarter butt portion point, and the quarter butt portion is connect by the second connector with the long bar portion point, i.e., described Connecting end surface between long bar portion and the quarter butt portion is small and easy disconnection, when pulling back the push-pull rod, the long bar portion Tie point between the quarter butt portion disconnects, so that the long bar portion and the quarter butt part are from wherein the sealing piston It stays in the syringe, can not reuse with the quarter butt portion, syringe surveys bottom self-destruction, so that syringe is really realized once The purpose that property uses；The utility model good airproof performance, use are safe；Easy to use, self-destruction is thorough, practical；Type self-destroyed knot Structure effectively prevents the reuse of syringe, avoids cross-infection, is conducive to the health of people.

Detailed description of the invention

Fig. 1 is a kind of structural representation for novel self-destructing sterilized syringes that specific embodiment of the present invention provides Figure；

Fig. 2 is enlarged drawing at a kind of A for novel self-destructing sterilized syringes that specific embodiment of the present invention provides；

Fig. 3 is that a kind of clamping mechanism for novel self-destructing sterilized syringes that specific embodiment of the present invention provides cuts open View.

In figure:

100, syringe；200, push-pull rod；210, quarter butt portion；220, long bar portion；221, snap slot；300, sealing piston； 310, annular recess；311, sealing ring；400, outlet end head；410, liquid outlet channel；411, inverted beard；420, needle stand；500, it is clamped Mechanism；510, it is clamped bar；520, clamping joint；530, apocenosis passage；531, liquid outlet；532, feed pathway；600, the first connection Body；610, the first base portion；620, the first broken part；700, the second connector；710, the second base portion；720, the second broken part； 800, hand is pressed；900, tail plate.

Specific embodiment

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art and technical solution are briefly described, it should be apparent that, it is described below Attached drawing be only some embodiments of the utility model, for those of ordinary skill in the art, do not paying creativeness Under the premise of labour, it can also be obtained according to these attached drawings other attached drawings.

It further illustrates the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments, needs Bright, the attached drawing in specific embodiment is only schematic diagram, is not defined to the size of device, actual size is with reality Subject to object.

As shown in FIG. 1 to 3, including syringe 100, push-pull rod 200, sealing piston 300, described 200 one end of push-pull rod are stretched Enter in the syringe 100, the other end exposes to the syringe 100, the one end of the syringe 100 far from the push-pull rod 200 is solid Surely it is equipped with outlet end head 400, the outlet end head 400 is integrally formed with the syringe 100, is equipped in the outlet end head 400 The liquid outlet channel 410 being connected with 100 inner cavity of syringe, the connectivity part of the liquid outlet channel 410 and 100 inner cavity of syringe It is fixedly installed with inverted beard 411, the radius of the inverted beard 411 is gradually reduced along the direction far from the syringe 100, the outlet end First 400 are set with needle stand 420, and the needle tubing in the needle stand 420 is connected with the liquid outlet channel 410；The sealing piston 300 In the syringe 100 and the sealing piston 300 is located at the push-pull rod 200 close to the one of the outlet end head 400 Side, the sealing piston 300 are fixed with clamping corresponding with liquid outlet channel 410 close to one end of the outlet end head 400 Mechanism 500, the clamping mechanism 500 include clamping bar 510, clamping joint 520, and described 510 one end of clamping bar is fixed on described close Envelope piston 300 is on the end of the outlet end head 400, the other end is fixedly connected with the clamping joint 520, the clamping bar 510 axis is overlapped with the axis of the sealing piston 300, and the diameter of the clamping joint 520 is along far from the clamping bar 510 Direction is gradually reduced and rounding off, and the maximum gauge of the clamping joint 520 is less than diameter and the institute of the liquid outlet channel 410 The maximum gauge for stating clamping joint 520 is greater than the minimum diameter of the inverted beard 411, is equipped with apocenosis passage in the clamping mechanism 500 530, the apocenosis passage 530 forms liquid outlet 531 through one end of the clamping joint 520, and 510 side wall of clamping bar is equipped with The feed pathway 532 that the apocenosis passage 530 is connected；The push-pull rod 200 includes quarter butt portion 210, long bar portion 220, institute It states quarter butt portion 210 and is located at the long bar portion 220 close to the side of the outlet end head 400, the long bar portion 220 is far from described short One end of bar portion 210 exposes to the syringe 100, and the sealing piston 300 is fixedly installed in the quarter butt portion 210 far from described On the end of long bar portion 220, end recess of the long bar portion 220 close to the quarter butt portion 210 is equipped with snap slot 221；It is described The first connector 600 and the second connector 700 are provided in snap slot 221, first connector 600 is located at the snap slot 221 middle part, first connector 600 include the first cylindrical base portion 610, in the first coniform broken part 620, Described first base portion, 610 one end is fixed in the long bar portion 220, the other end is fixedly connected with first broken part 620, institute The other end for stating the first broken part 620 is connect with the quarter butt portion 210, and the radius of first broken part 620 is along far from described The direction of first base portion 610 is gradually reduced, i.e., described first broken part 620 is connect for 210 points with the quarter butt portion；Described second connects The quantity of junctor 700 is two, and two second connectors 700 are symmetrical arranged about first connector 600, each described Second connector 700 includes the second cylindrical base portion 710, in the second coniform broken part 720, second base portion 710 one end are fixed in the quarter butt portion 210, the other end is fixedly connected with second broken part 720, second broken part 720 other ends are connect with the long bar portion 220, and the radius of second broken part 720 is along the side far from second base portion 710 To being gradually reduced, i.e., described second broken part 720 is connect with 220 points of the long bar portion.

Further, the symmetrical two sides of the clamping bar 510 are equipped with the feed pathway 532, and the clamping bar 510 The feed pathway 532 of two sides is staggered, by the staggered feed pathway 532 in two sides, ensure that when clamping When the first 520 blocking liquid outlet channel 410, all medical fluids in 100 inner cavity of syringe can pass through 532 row of feed pathway Into the liquid outlet channel 410, it then is transported to outside from the needle tubing of the needle stand 420, to reach sufficiently using medical fluid Purpose.

Further, 300 lateral wall of sealing piston is equipped with multiple annular recess 310, edge in the annular recess 310 Embedding to be equipped with sealing ring 311, the interval of sealing ring 311 is arranged, and the sealing ring 311 being arranged in this way is conducive to reach good Sealing performance, sealing ring 311 use the materials such as silica gel, PVC, have no toxic side effect；It can certainly be in the annular recess 310 It is inside respectively provided with the sealing ring 311, such leakproofness is best, but in order to consider the problems of real cost of production, uses The mode at interval installs sealing ring 311, not only favorable sealing property, but also saves sealing material, is produced into reduce This.

Further, the quantity of the annular recess 310 is at least three, and the quantity of the sealing ring 311 is at least two, until Two sealing rings 311 are arranged less can guarantee the leakproofness between 100 inner wall of the sealing piston 300 and the syringe Can, and interval mounting means is used, two sealing rings 311 at least want three annular recess 310.

Further, the long bar portion 220 is fixed with far from the end in the quarter butt portion 210 by hand 800, described to press hand 800 ends far from the long bar portion 220 are in concave shaped, one end lateral wall of the syringe 100 far from the outlet end head 400 On be fixed with for the tail plate 900 being used cooperatively by hand 800, under the cooperation of the tail plate 900, be in indent Shape is very suitable to the finger pushing push-pull rod 200 by hand 800, and humanized structure is designed as medical staff's injection operation and mentions Convenience is supplied.

A kind of novel self-destructing sterilized syringes provided by the utility model, in injection process, to close to the liquid out The direction of end 400 pushes the push-pull rod 200, so that the sealing piston 300 travels forward and pushes in the syringe 100 Medical fluid injected outward from the liquid outlet channel 410 to the needle tubing of the needle stand 420；In pushing course, the clamping The clamping joint 520 of mechanism 500 contradicts the inverted beard 411 in the liquid outlet channel 410 first, due to the maximum of the clamping joint 520 Diameter is less than the diameter of the liquid outlet channel 410, and inverted beard 411 has the characteristic opened around, so that the clamping joint 520 The inverted beard 411 can be passed through, at this moment the liquid outlet 531 of the apocenosis passage 530 in the clamping mechanism 500 is located at the liquid out In channel 410, and the apocenosis passage 530 is connected by feed pathway 532 with 100 inner cavity of syringe, so that the needle Intracavitary all medical fluids can pass sequentially through the apocenosis passage 530 and be transported in the needle tubing of the needle stand 420 in cylinder 100, from And ensure that noresidue medical fluid in syringe, avoid waste；After injection, it is drawn to the direction far from the outlet end head 400 The push-pull rod 200 is moved, it is described at this moment since the maximum gauge of the clamping joint 520 is greater than the minimum diameter of the inverted beard 411 Clamping joint 520 can not be by the inverted beard 411 and the clamping joint 520 is connected in the liquid outlet channel 410, while by It is connect for 210 points by the first connector 600 with the quarter butt portion in the long bar portion 220, the quarter butt portion 210 connects by second Junctor 700 is connect with 220 points of the long bar portion, i.e., the connecting end surface between the described long bar portion 220 and the quarter butt portion 210 is small And it easily disconnects, connection point off when pulling back the push-pull rod 200, between the long bar portion 220 and the quarter butt portion 210 It opens, so that the long bar portion 220 and the quarter butt portion 210 separation, wherein the sealing piston 300 and the quarter butt portion 210 are stayed It in the syringe 100, can not reuse, syringe surveys bottom self-destruction, so that syringe really realizes disposable mesh 's；The utility model good airproof performance, use are safe；Easy to use, self-destruction is thorough, practical；Type self-destroyed structure effectively prevents The reuse of syringe, avoids cross-infection, is conducive to the health of people.

The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to In the range of the utility model protection.

Claims (5)

1. a kind of novel self-destructing sterilized syringes, it is characterised in that:

Including syringe (100), push-pull rod (200), sealing piston (300), the syringe is protruded into described push-pull rod (200) one end (100) the interior, other end exposes to the syringe (100), and the syringe (100) is fixed far from the one end of the push-pull rod (200) Equipped with outlet end head (400), the liquid outlet channel being connected with the syringe (100) inner cavity is equipped in the outlet end head (400) (410), the connectivity part of the liquid outlet channel (410) and the syringe (100) inner cavity is fixedly installed with inverted beard (411), it is described fall The radius of palpus (411) is gradually reduced along the direction far from the syringe (100), and the outlet end head (400) is set with needle stand (420)；

The sealing piston (300) is located in the syringe (100) and the sealing piston (300) is located at the push-pull rod (200) close to the side of the outlet end head (400), the sealing piston (300) is close to one end of the outlet end head (400) It is fixed with clamping mechanism (500) corresponding with liquid outlet channel (410), the clamping mechanism (500) includes clamping bar (510), the sealing piston (300) are fixed on close to the outlet end head in clamping joint (520), described clamping bar (510) one end (400) on end, the other end be fixedly connected with the clamping joint (520), the diameter of the clamping joint (520) is along far from described The direction of clamping bar (510) is gradually reduced and rounding off, and it is logical that the maximum gauge of the clamping joint (520) is less than the liquid out The diameter in road (410) and the maximum gauge of the clamping joint (520) are greater than the minimum diameter of the inverted beard (411), the clamping Apocenosis passage (530) are equipped in mechanism (500), the apocenosis passage (530) is formed out through the one end of the clamping joint (520) Liquid mouth (531), clamping bar (510) side wall are equipped with the feed pathway (532) that the apocenosis passage (530) is connected；

The push-pull rod (200) includes quarter butt portion (210), long bar portion (220), and the quarter butt portion (210) is located at the long bar portion (220) close to the side of the outlet end head (400), the one end of the long bar portion (220) far from the quarter butt portion (210) is exposed In the syringe (100), the sealing piston (300) is fixedly installed in the quarter butt portion (210) far from the long bar portion (220) End on, the long bar portion (220) close to the quarter butt portion (210) end recess be equipped with snap slot (221)；It is described to fracture It is provided with the first connector (600) and the second connector (700) in slot (221), first connector (600) is located at the folding The middle part of fault trough (221), first connector (600) include cylindrical the first base portion (610), in coniform first Broken part (620), described first base portion (610) one end is fixed on the long bar portion (220), the other end fractures with described first Portion (620) is fixedly connected, and the other end of first broken part (620) is connect with the quarter butt portion (210), and described first fractures The radius in portion (620) is gradually reduced along the direction far from first base portion (610)；The quantity of second connector (700) It is two, two second connectors (700) are symmetrical arranged about first connector (600), each second connection Body (700) includes cylindrical the second base portion (710), in coniform the second broken part (720), second base portion (710) one end is fixed on the quarter butt portion (210), the other end is fixedly connected with second broken part (720), and described second Broken part (720) other end is connect with the long bar portion (220), and the radius of second broken part (720) is along far from described the The direction of two base portions (710) is gradually reduced.

2. a kind of novel self-destructing sterilized syringes according to claim 1, it is characterised in that:

The symmetrical two sides of clamping bar (510) are equipped with the feed pathway (532), and described clamping bar (510) two sides The feed pathway (532) is staggered.

3. a kind of novel self-destructing sterilized syringes according to claim 1, it is characterised in that:

Sealing piston (300) lateral wall is equipped with multiple annular recess (310), inlays installation in the annular recess (310) Have sealing ring (311), sealing ring (311) interval setting.

4. a kind of novel self-destructing sterilized syringes according to claim 3, it is characterised in that:

The quantity of the annular recess (310) is at least three, and the quantity of the sealing ring (311) is at least two.

5. a kind of novel self-destructing sterilized syringes according to claim 1, it is characterised in that:

The long bar portion (220) is fixed with far from the end of the quarter butt portion (210) by hand (800), described to press hand (800) far End from the long bar portion (220) is in concave shaped, one end outside of the syringe (100) far from the outlet end head (400) Be fixed on wall for the tail plate (900) being used cooperatively by hand (800).