CN216725423U - Environment-friendly degradable medical syringe - Google Patents

Environment-friendly degradable medical syringe Download PDF

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Publication number
CN216725423U
CN216725423U CN202122496234.8U CN202122496234U CN216725423U CN 216725423 U CN216725423 U CN 216725423U CN 202122496234 U CN202122496234 U CN 202122496234U CN 216725423 U CN216725423 U CN 216725423U
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Prior art keywords
tube
cavity
outer tube
piston
environment
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CN202122496234.8U
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Chinese (zh)
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徐荣花
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Hubei Fuxin Medical Devices Co ltd
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Hubei Fuxin Medical Devices Co ltd
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Abstract

The utility model discloses an environment-friendly degradable medical syringe, which comprises a needle head, an outer tube and a piston tube, wherein the outer tube and the piston tube are both made of degradable materials, one end of the outer tube is open, one end of the piston tube is provided with a rubber plug and extends into the open end of the outer tube, the piston tube can slide in the outer tube along the axis of the outer tube, the environment-friendly degradable medical syringe further comprises a first tube body, a second tube body and a cylinder, the first tube body is coaxially arranged at the sealing end of the outer tube and is communicated with the inside of the outer tube, a circular plate is horizontally arranged in the cylinder and divides the inside of the cylinder into a first cavity and a second cavity which are mutually independent, a through hole is coaxially formed in the circular plate, one end of the second tube body extends into the second cavity and is coaxially connected with the inner wall of the through hole, the other end of the second tube body is detachably connected with the needle head, the inside of the piston tube is hollow, and one end, close to the piston tube, of the rubber plug is hollow and is communicated with the inside of the piston tube. The utility model provides an environment-friendly degradable medical injector, which can really achieve the purpose of disposable use.

Description

Environment-friendly degradable medical syringe
Technical Field
The present invention relates to the field of syringes. More particularly, the utility model relates to an environment-friendly degradable medical injector.
Background
The medical injector used in the present market is basically a disposable injector, and the product performance structure and the composition of the disposable injector comprise an outer sleeve, a core bar, a rubber plug, a conical head, a press handle, a conical head and the like. The product has the application range matched with a disposable injection needle and is used for hypodermic, intramuscular and intravenous injection of liquid medicine, blood drawing or medicine dissolving. In the actual use process, a part of bad doctors can repeatedly use the syringe, and the current commercially available syringe does not have the forced damage function of disposable. The existing syringes at home and abroad are reused to provide a riding opportunity, and serious hidden troubles are left for infectious diseases or other medical accidents.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an environment-friendly degradable medical injector which is simple in structure and can retract a needle after use, so that the injector really achieves the purpose of disposable use.
The technical scheme for solving the technical problems is as follows: an environment-friendly degradable medical syringe comprises a needle head, an outer tube and a piston tube, wherein the outer tube and the piston tube are made of degradable materials, one end of the outer tube is open, one end of the piston tube is provided with a rubber plug and extends into the open end of the outer tube, the piston tube can slide in the outer tube along the axis of the outer tube, the syringe further comprises a first tube body, a second tube body and a cylinder, the first tube body is coaxially arranged at the sealing end of the outer tube and is communicated with the inside of the outer tube, a circular plate is horizontally arranged in the cylinder and divides the inside of the cylinder into a first cavity and a second cavity which are mutually independent, a through hole is coaxially formed in the circular plate, one end of the second tube body extends into the second cavity and is coaxially connected with the inner wall of the through hole, the other end of the second tube body is detachably connected with the needle head, the inside of the piston tube is hollow, the rubber plug is hollow inside, one end of the rubber plug, which is close to the piston tube, is communicated with the interior of the piston tube, one of the first tube body is selectively extended into the first cavity or the second cavity and is detachably connected with the cylinder, and the inner diameter of the first tube body is larger than the outer diameter of the second tube body.
Preferably, in the environment-friendly degradable medical injector, the periphery of the first pipe body is provided with external threads, the first cavity and the second cavity are internally provided with internal threads, and one of the first pipe body extends into the first cavity or the second cavity and is in threaded connection with the cylinder.
Preferably, in the environment-friendly degradable medical injector, a first protrusion is arranged on the inner wall of the outer tube, a strip-shaped groove is vertically arranged on the outer wall of the piston tube, a plurality of second protrusions are arranged in the strip-shaped groove at intervals, and the first protrusion can be embedded between any two adjacent second protrusions.
Preferably, in the environment-friendly degradable medical injector, the first bulge and the second bulge are semi-spherical.
Preferably, in the environment-friendly degradable medical injector, the first protrusion is made of degradable materials and is integrally formed with the outer tube.
Preferably, in the environment-friendly degradable medical injector, the second protrusion is made of degradable materials, and the second protrusion, the strip-shaped groove and the piston tube are integrally formed.
The environment-friendly degradable medical injector is simple in structure, and the needle can be retracted after use by selectively extending the first tube body into the first cavity or the second cavity and detachably connecting the first tube body with the cylinder, so that the injector really achieves the purpose of disposable use.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic view of a medical injector according to the present invention;
FIG. 2 is a cross-sectional view of a medical injector according to the present invention in use;
FIG. 3 is a cross-sectional view of a medical injector according to the present invention after use;
FIG. 4 is a detail view at A of FIG. 2;
fig. 5 is a detailed view at B in fig. 2.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Fig. 1-5 show an environment-friendly degradable medical syringe provided by an embodiment of the present invention, which includes a needle 1, an outer tube 2 and a piston tube 3 both made of degradable material, wherein one end of the outer tube 2 is open, one end of the piston tube 3 is provided with a rubber plug 4 and extends into the open end of the outer tube 2, the piston tube 3 can slide in the outer tube 2 along the axis of the outer tube 2, the medical syringe further includes a first tube 5, a second tube 6 and a cylinder 7, the first tube 5 is coaxially disposed at the sealed end of the outer tube 2 and is communicated with the inside of the outer tube 2, the cylinder 7 is horizontally provided with a circular plate, the circular plate divides the inside of the cylinder 7 into a first cavity 8 and a second cavity 9 which are independent of each other, the circular plate is coaxially provided with a through hole, one end of the second tube 6 extends into the second cavity 9 and is coaxially connected with the inner wall of the through hole, the other end of the second tube body 6 is detachably connected with the needle head 1, the piston tube 3 is hollow inside, the rubber plug 4 is hollow inside and one end of the rubber plug close to the piston tube 3 is communicated with the piston tube 3, one of the first tube bodies 5 extends into the first cavity 8 or the second cavity 9 and is detachably connected with the cylinder 7, and the inner diameter of the first tube body 5 is larger than the outer diameter of the second tube body 6.
In this embodiment, in normal use, as shown in fig. 1-2, the first tube 5 is inserted into the first cavity 8 and detachably connected to the cylinder 7, the first tube 5 and the second tube 6 are hermetically connected through the cylinder 7, and then the needle 1 is connected to the second tube 6, so that the needle 1 and the outer tube 2 can be fixedly connected, and the syringe can be used normally. And after the syringe uses, in order to prevent the secondary use syringe, take off drum 7 from first body 5, then rotate drum 7 180, with syringe needle 1 towards first body 5, then insert syringe needle 1 in first body 5, the point portion of syringe needle 1 punctures plug 4, the needle body of syringe needle 1 inserts piston tube 3 and plug 4 inside, until second body 6 stretches into first body 5, first body 5 stretches into in the second cavity 9, then can dismantle first body 5 and drum 7 and connect, can accomplish taking in of syringe needle 1, plug 4 on the piston tube 3 is punctured this moment simultaneously, inside and the piston tube 3 inside intercommunication of plug 4, and like this, because plug 4 has been damaged, the syringe just can not used again. Simultaneously, in this embodiment, outer tube 2 and piston tube 3 are made by degradable material, and plug 4, first body 5, second body 6 and drum 7 are also made by degradable material like this, and whole syringe can degrade naturally after using, and is friendly to the environment.
Preferably, as another embodiment of the present invention, the first tube 5 has an external thread on the periphery thereof, the first cavity 8 and the second cavity 9 have internal threads therein, and the first tube 5 alternatively extends into the first cavity 8 or the second cavity 9 and is in threaded connection with the cylinder 7.
In this embodiment, the first cavity 8 and the second cavity 9 are both provided with internal threads, and the first tube 5 is provided with external threads at the periphery thereof, so that the first tube 5 can be connected with the inner wall of the cylinder 7 by threads when extending into the first cavity 8 or the second cavity 9.
Preferably, as another embodiment of the present invention, a first protrusion 10 is disposed on an inner wall of the outer tube 2, a strip-shaped groove 11 is vertically disposed on an outer wall of the piston tube 3, a plurality of second protrusions 12 are disposed at intervals in the strip-shaped groove 11, and the first protrusion 10 may be embedded between any two adjacent second protrusions 12.
In this embodiment, by providing the first protrusion 10 and the plurality of second protrusions 12, taking the example between two adjacent second protrusions 12 as a unit, when the piston tube 3 is pushed, a jolt is felt by the hand due to the collision between the first protrusion 10 and the second protrusion 12 every time the unit is pushed. As the piston rod moves one unit each time, the liquid medicine injected by the injector is the same, so that the length of one unit corresponds to the scale mark on the outer tube 2, the piston tube 3 pushes one unit each time, the injector injects the liquid medicine with the same volume, and the matching of the injection amount is assisted by counting the quantity of the jolt.
Preferably, as another embodiment of the present invention, the first protrusion 10 and the second protrusion 12 are semi-spherical.
In this embodiment, the first protrusion 10 and the second protrusion 12 are semi-spherical, and when the first protrusion 10 is embedded between any two adjacent second protrusions 12, the first protrusion 10 is tangent to the two adjacent second protrusions 12, so that the obstruction of the second protrusions 12 by the first protrusion 10 can be reduced when the piston tube 3 is pushed.
Preferably, as another embodiment of the present invention, the first protrusion 10 is made of degradable material, and is integrally formed with the outer tube 2.
Preferably, as another embodiment of the present invention, the second protrusion 12 is made of a degradable material, and the plurality of second protrusions 12, the strip-shaped groove 11 and the piston tube 3 are integrally formed.
While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the utility model may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the utility model is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.

Claims (6)

1. The utility model provides an environment-friendly degradable medical syringe, includes syringe needle (1) and outer tube (2) and piston tube (3) made by degradable material, outer tube (2) one end opening, the one end of piston tube (3) is equipped with plug (4) and stretches into in the open end of outer tube (2), piston tube (3) can be in outer tube (2) along the axis of outer tube (2) slides, its characterized in that still includes first body (5), second body (6) and drum (7), first body (5) coaxial setting in the sealed end of outer tube (2) and with the inside intercommunication of outer tube (2), the inside level of drum is equipped with a plectane, the plectane will drum (7) inside separation is first cavity (8) and second cavity (9) mutually independent, coaxial opening has a through-hole on the plectane, the one end of second body (6) stretch into in second cavity (9) and with the inner wall coaxial coupling of through-hole, the other end of second body (6) with syringe needle (1) can dismantle the connection, the inside cavity of piston pipe (3), the inside cavity of plug (4) and its be close to the one end of piston pipe (3) with the inside intercommunication of piston pipe (3), stretch into of first body (5) alternative in first cavity (8) or in second cavity (9) and with drum (7) can dismantle the connection, just the internal diameter of first body (5) is greater than the external diameter of second body (6).
2. The environment-friendly degradable medical injector according to claim 1, wherein the first tube (5) is externally threaded on the periphery, the first cavity (8) and the second cavity (9) are internally threaded, and the first tube (5) is selectively extended into the first cavity (8) or the second cavity (9) and is in threaded connection with the cylinder (7).
3. The environment-friendly degradable medical syringe as set forth in claim 1, wherein the inner wall of the outer tube (2) is provided with a first protrusion (10), the outer wall of the piston tube (3) is vertically provided with a strip-shaped groove (11), the strip-shaped groove (11) is provided with a plurality of second protrusions (12) at intervals, and the first protrusion (10) can be embedded between any two adjacent second protrusions (12).
4. The environment-friendly degradable medical syringe according to claim 3, wherein the first protrusion (10) and the second protrusion (12) are semi-spherical.
5. The environment-friendly degradable medical syringe as claimed in claim 4, wherein the first protrusion (10) is made of degradable material and is integrally formed with the outer tube (2).
6. The environment-friendly degradable medical syringe according to claim 4, wherein the second protrusion (12) is made of degradable material, and the second protrusions (12), the strip-shaped groove (11) and the piston tube (3) are integrally formed.
CN202122496234.8U 2021-10-18 2021-10-18 Environment-friendly degradable medical syringe Active CN216725423U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122496234.8U CN216725423U (en) 2021-10-18 2021-10-18 Environment-friendly degradable medical syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122496234.8U CN216725423U (en) 2021-10-18 2021-10-18 Environment-friendly degradable medical syringe

Publications (1)

Publication Number Publication Date
CN216725423U true CN216725423U (en) 2022-06-14

Family

ID=81922077

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122496234.8U Active CN216725423U (en) 2021-10-18 2021-10-18 Environment-friendly degradable medical syringe

Country Status (1)

Country Link
CN (1) CN216725423U (en)

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