CN209933702U - Syringe with luer connector - Google Patents
Syringe with luer connector Download PDFInfo
- Publication number
- CN209933702U CN209933702U CN201920396116.XU CN201920396116U CN209933702U CN 209933702 U CN209933702 U CN 209933702U CN 201920396116 U CN201920396116 U CN 201920396116U CN 209933702 U CN209933702 U CN 209933702U
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- China
- Prior art keywords
- luer connector
- plunger rod
- syringe
- luer
- plunger
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Abstract
The utility model provides an injector with a luer connector, which comprises a tube body provided with the luer connector, wherein a first bore hole part close to the luer connector and a second bore hole part close to the tail part of the tube body are arranged inside the tube body; a plunger disposed in the first bore portion; the plunger rod is arranged in the tube body, one end of the plunger rod is connected with the plunger, the other end of the plunger rod is provided with the pressing head, and the plunger rod with a cross-shaped section is symmetrically provided with notches and/or bulges in an array along at least one part of the length of the plunger rod; an insert provided in the second bore portion and provided with a cruciform opening for passage of the plunger rod, the two co-linear channels being provided with fingers which, in use, engage with an array of recesses and/or projections on the plunger rod; the free end of the outer side wall of the luer connector is provided with a cover cap, a tearable connecting body is arranged between the cover cap and the luer connector, and the syringe is prevented from being reused by arranging the tearable cover cap at the luer connector.
Description
Technical Field
The utility model relates to a syringe field especially relates to a take syringe that luer connects.
Background
The use of the injector is relatively extensive, and the traditional injector usually directly pushes the injection liquid, and cannot give a certain prompt to an operator in the pushing process, for example, the operator is given a prompt (such as a voice prompt) when injecting a certain dose of injection medium, so that the operator can better know the completed injection dose.
In the medical and cosmetic field, if an injector with an injection dosage prompt can be provided, the technical operation can be completed by more attentive medical workers.
Patent publication CN104994897B discloses a syringe in which, in use, with the insert located within the second bore portion and the plunger rod passing through the bore defined by the insert, when the plunger rod is moved relative to the barrel along axis a-a, two fingers on the insert ride along notches and/or projections on the plunger rod to produce an audible click. This type of syringe can hear a click to help the physician speak the correct dose to the patient and to make the patient sure that the requested/prescribed dose has been administered.
The inventor finds that the syringe is more convenient to use after being provided with the luer connector, and the technical problem to be solved by the utility model is how to avoid the syringe with the luer connector from being reused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take luer connector's syringe, it is through luer connector department setting up the block that can tear to avoid the syringe to be used repeatedly.
The utility model provides a take syringe of luer joint, it includes: the tube body (1) is provided with a luer connector (2), a first bored part (1a) close to the luer connector (2) and a second bored part (1b) close to the tail part of the tube body are arranged inside the tube body, and the first bored part and the second bored part are adjacently arranged; a plunger (4) disposed within the first bore portion and movable along an inner wall of the first bore portion, the plunger being made of an elastomer; the plunger rod (3) is arranged on the tube body, one end of the plunger rod is connected with the plunger, the other end of the plunger rod is provided with a pressing head (5), and the plunger rod (3) with a cross-shaped section is symmetrically provided with an array of notches and/or bulges (7) along at least one part of the length of the plunger rod; an insert (6) provided in the second bore portion and provided with a cross-shaped opening for passage of the plunger rod, the two co-linear channels being provided with fingers which, in use, engage the array of recesses and/or projections on the plunger rod; ruhr connects the lateral wall free end and is provided with block (8), block (8) include column cap body (8a), set up in apron (8b) of column cap body bottom, be provided with between column cap body top and the Ruhr connects the lateral wall lower extreme connector (8c) that can tear, connector (8c) have arranged a plurality ofly along column cap body top circumference, the block is provided with ear (10) of symmetry.
Compared with the prior art, the utility model provides a take syringe that luer connects can tear the block through setting up in luer joint bottom to avoid taking the syringe that luer connects to be used repeatedly, if the user discovers that the block of luer joint tip has been torn, then can judge that this syringe has used, thereby lets the user more audio-visually perceive whether the syringe is used.
Further, the connector is a symmetrical trapezoidal structure or a cylindrical structure arranged between the columnar cap body and the luer connector.
Further, the connector comprises a lower trapezoid connected with the columnar cap body and an inverted trapezoid arranged in an inner concave part arranged on the outer side wall of the Ruhr joint, and the thickness of a connecting part between the inverted trapezoid and the lower trapezoid is 1-3 mm.
Further, the connecting body is made of plastic.
Further, the connector is provided with three or five along the circumference of the columnar cap body.
Further, the outer diameter of the cylindrical structure is 1-3 mm.
Further, the ear portion may be detachably mounted to the cap, for example, the cap may be mounted to the cap by a screw or the like, and the mounting head of the ear portion using a T-shaped structure may be rotatably mounted to the base of the cap.
Drawings
Fig. 1 is a cross-sectional view of a syringe with a luer fitting in example 1.
FIG. 2 is an enlarged view at I in FIG. 1 of example 1.
Fig. 3 is an enlarged view of fig. 2 at II.
Fig. 4 is a schematic view of another type of cap of the luer fitting configuration in embodiment 1.
Fig. 5 is a partial structural schematic view of the luer connector and the cap in embodiment 2.
FIG. 6 is a schematic view of an alternative T-shaped ear portion mounted to a cap.
Detailed Description
The present invention will now be described in more detail with reference to the drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art could modify the invention herein described while still achieving the beneficial effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
Example 1: a syringe with a luer connector is disclosed, and referring to fig. 1, the syringe comprises a tube body 1 provided with the luer connector 2, the tube body is of a structure for sucking and injecting liquid by the syringe, a first bored part 1a close to the luer connector 2 and a second bored part 1b close to the tail part of the tube body are arranged inside the tube body, the first bored part and the second bored part are arranged adjacently, and an insert piece is conveniently arranged in the two bored parts, and the insert piece can help the syringe to generate click sound by matching with a notch or a bulge arranged on a plunger rod during injection so as to judge the injected dosage. A plunger 4, which is disposed in the first bore portion and is movable along an inner wall of the first bore portion, is made of an elastic body, such as a rubber body. A plunger rod 3 arranged in the barrel, one end of which is connected to the plunger and the other end of which is provided with a pressing head 5 by which the plunger rod can be pressed to thereby advance the plunger and thereby inject the injection from the syringe into a human body, the cross-sectioned plunger rod 3 being symmetrically provided along at least part of its length with an array of recesses and/or projections 7 which can cooperate with the fingers of the insert to make a click, an insert 6 arranged in the second bore portion and provided with a cross-shaped opening for the plunger rod to pass through, the fingers being arranged in two co-linear channels, said fingers engaging said array of recesses and/or projections on said plunger rod in use. The above structure of the click sound is well known in the art, and reference is made to patent documents such as CN104994897B mentioned in the background.
The utility model provides an injector is owing to be provided with the semicircular bulge that the array arranged on the plunger rod (have the clearance between the adjacent semicircular bulge, the cross-section has this semicircular bulge structure for criss-cross plunger rod symmetrical arrangement), and be provided with in two cell bodies of symmetry in passing through the opening in the cross of insert with the meshing of semicircular bulge finger-like thing (can with the protruding slice of semicircular bulge meshing), thereby let the cooperation of semicircular bulge and finger-like thing and send the click sound at the in-process of plunger rod propelling movement injection liquid, just can let the semicircular bulge of finger-like thing cooperation click sound because the bellied adjacent distance of semicircular bulge can decide the propelling movement certain distance, thereby indicate corresponding injection dosage (this is decided by the bellied interval of adjacent semicircle, prior art such as ZL2014800057722 can be referred to the principle).
Referring to fig. 1, the free end of the outer side wall of the luer connector (i.e. the lower end of the luer connector in fig. 1) is provided with a cap 8, the cap 8 comprises a cylindrical body 8a and a cover plate 8b arranged at the bottom of the cylindrical body, so that the cap forms a covering structure for covering the mounting opening of the luer connector, when the cap is present, the external docking piece cannot be arranged in the luer connector, the cap must be torn off to arrange the external docking piece in the luer connector, a tearable connecting body 8c is arranged between the top end of the cylindrical body and the lower end of the outer side wall of the luer connector, the connecting body 8c can be torn off under the action of external force, so that the cap is separated from the luer connector, and the external docking piece is arranged in the luer connector, the connecting bodies 8c are arranged in a plurality along the circumference of the top of the cylindrical body, and the number of the connecting bodies, the cover cap can be torn off from the Ruhr joint.
It should be noted that the connecting body is a symmetrical trapezoid structure arranged between the cylindrical cap body and the luer connector, referring to fig. 2-3, the connecting body 8c includes a lower trapezoid 80 connected with the cylindrical cap body and an inverted trapezoid 81 arranged in an inner recess arranged on the outer side wall of the luer connector (for example, a square inner recess is arranged on the outer side wall of the luer connector), the thickness of the connecting part between the inverted trapezoid and the lower trapezoid is 1-3mm, for example, 1.5mm is selected, the thinner connecting part can make the connector easily torn off, so as to achieve the effect of breaking off between the cap and the luer connector, thereby facilitating the installation of the junction piece on the luer connector, if the connecting piece is torn off, the syringe can not be restored, thereby ensuring that the syringe can not reset the cap any more, when the consumer or medical staff finds that the cap is lacking, the syringe can be judged to be unqualified or used, thereby preventing the syringe from being reused.
The connector is made of plastic, three connectors are arranged along the circumference of the columnar cap body, and when the cap body of the cap is held outside to rotate the cap body clockwise or anticlockwise, the connectors can be twisted off, so that the cap is separated from the luer connector.
As a further improvement to this embodiment, the cap is provided with symmetrical ears 10, see fig. 4, which are cylindrical rod bodies and have a length of 4-8mm, for example, 5mm is selected, so that the user can conveniently hold the ears to rotate the cap, and the convenience of the user operation is improved. It should be noted that a breakable portion is also provided between the cap and the luer connector, and the form of the breakable portion includes, but is not limited to, a connecting body with a wall thickness of 1-3mm, and other structures capable of being torn off.
Example 2: the lower end of the syringe in this embodiment is also provided with a luer structure, and referring to the syringe in embodiment 1 or the prior art and the syringe fitted with the luer, the connecting body between the luer 2 and the cap 8 is a cylindrical body, referring to fig. 5, a cylindrical connecting body 8c is provided between the lower end of the luer and the upper end of the cap, the outer diameter of the cylindrical connecting body 8c is 2mm, and five cylindrical bodies are provided between the cap and the luer, and since the connecting body made of plastic has a small diameter, in the case of twisting the cap counterclockwise or clockwise, the connecting body can be torn off, thereby separating the cap from the luer.
The cap can be made of transparent plastic, and the cap body of the cap can be provided with symmetrical ear parts.
It is worth mentioning that the ear portion is detachably mounted on the cap to further reduce the difficulty of packaging the syringe, for example, the cap is mounted on the cap by a screw thread structure, the rod-shaped ear portion is provided with an external screw thread, the cap is provided with an internal screw hole matched with the cap, of course, as a further improvement, the ear portion is provided with a T-shaped structure, the mounting head of the ear portion adopting the T-shaped structure can be rotatably mounted on the base of the cap, see fig. 6, a platform with a height of 4-5mm is arranged on the side wall of the cap, the platform can be square or round, the platform is provided with a rotary mounting hole, the rotary mounting hole is rotatably provided with a T-shaped ear portion 10, the T-shaped ear portion is provided with a cylindrical main body portion and a symmetrical foot 10a (thereby forming a T-shaped body) arranged on the cylindrical main body portion, and an annular interlayer is arranged inside the hole body, this annular interlayer height matches with the thickness of ear 'S symmetry foot, thereby can let the symmetry foot can be in this annular interlayer annular motion, and the edge symmetry of rotatory mounting hole is provided with the inlet port S1 that lets the symmetry foot enter into annular interlayer passageway, the appearance of symmetry foot need be matchd to the shape of inlet port, square inlet port is then matchd to square symmetry foot for example, after the symmetry foot of ear enters into the inlet port, clockwise or the cylindric main part of anticlockwise rotation, just can let the symmetry foot enter into annular interlayer passageway, thereby can let ear' S temporary fixation on the block, so that handheld ear rotates the block and then lets block and luer structure separation (tears the connector each other off).
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (6)
1. A syringe with luer fitting, comprising:
the tube body (1) is provided with a luer connector (2), a first bored part (1a) close to the luer connector (2) and a second bored part (1b) close to the tail part of the tube body are arranged inside the tube body, and the first bored part and the second bored part are adjacently arranged;
a plunger (4) disposed within the first bore portion and movable along an inner wall of the first bore portion, the plunger being made of an elastomer;
the plunger rod (3) is arranged on the tube body, one end of the plunger rod is connected with the plunger, the other end of the plunger rod is provided with a pressing head (5), and the plunger rod (3) with a cross-shaped section is symmetrically provided with an array of notches and/or bulges (7) along at least one part of the length of the plunger rod;
an insert (6) provided in the second bore portion and provided with a cross-shaped opening for passage of the plunger rod, the two co-linear channels being provided with fingers which, in use, engage the array of recesses and/or projections on the plunger rod;
the novel luer lock is characterized in that a cover cap (8) is arranged at the free end of the outer side wall of the luer connector, the cover cap (8) comprises a cylindrical cap body (8a) and a cover plate (8b) arranged at the bottom of the cylindrical cap body, a connecting body (8c) capable of being torn is arranged between the top end of the cylindrical cap body and the lower end of the outer side wall of the luer connector, the connecting body (8c) is arranged in a plurality along the circumferential direction of the top of the cylindrical cap body, and the cover cap is provided with symmetrical lugs (10).
2. The syringe with luer connector of claim 1, wherein the connecting body is a symmetrical trapezoidal structure or a cylindrical structure arranged between the cylindrical cap body and the luer connector.
3. The syringe with the luer connector as claimed in claim 2, wherein the connector comprises a lower trapezoid connected with the cylindrical cap body and an inverted trapezoid arranged in an inner recess formed in an outer side wall of the luer connector, and a thickness of a connection portion between the inverted trapezoid and the lower trapezoid is 1-3 mm.
4. A syringe with luer connector according to claim 1, 2 or 3, characterized in that the connector is made of plastic.
5. The syringe with luer connector of claim 1, wherein the connecting body is provided with three or five along the circumference of the cylindrical cap body.
6. The syringe with luer fitting of claim 2, wherein the cylindrical structure has an outer diameter of 1-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920396116.XU CN209933702U (en) | 2019-03-27 | 2019-03-27 | Syringe with luer connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920396116.XU CN209933702U (en) | 2019-03-27 | 2019-03-27 | Syringe with luer connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209933702U true CN209933702U (en) | 2020-01-14 |
Family
ID=69125521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920396116.XU Active CN209933702U (en) | 2019-03-27 | 2019-03-27 | Syringe with luer connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209933702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111924506A (en) * | 2020-09-01 | 2020-11-13 | 江苏万海医疗器械有限公司 | Prefabricated material conveying device and pusher thereof |
-
2019
- 2019-03-27 CN CN201920396116.XU patent/CN209933702U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111924506A (en) * | 2020-09-01 | 2020-11-13 | 江苏万海医疗器械有限公司 | Prefabricated material conveying device and pusher thereof |
| CN111924506B (en) * | 2020-09-01 | 2020-12-29 | 江苏万海医疗器械有限公司 | Prefabricated material conveying device and pusher thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 201114 Room 201, 206-210, building 3, No. 999, Jiangyue Road, Minhang District, Shanghai Patentee after: SHANGHAI MOYANG BIOLOGICAL TECHNOLOGY Co.,Ltd. Address before: 201112 room 205, building 3, No. 999, Jiangyue Road, Minhang District, Shanghai Patentee before: SHANGHAI MOYANG BIOLOGICAL TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |