CN215653088U

CN215653088U - Remaining needle with pre-filled syringe

Info

Publication number: CN215653088U
Application number: CN202121907326.4U
Authority: CN
Inventors: 耿丽欣; 张丽萍
Original assignee: Second Medical Center of PLA General Hospital
Current assignee: Second Medical Center of PLA General Hospital
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-28
Anticipated expiration: 2031-08-16

Abstract

The utility model relates to the field of an indwelling needle, in particular to an indwelling needle with a prefilled syringe, which comprises a transparent tee joint, wherein one side of the transparent tee joint is hermetically connected with an extension pipe, the liquid inlet position of the extension pipe is hermetically connected with a positive pressure joint, the top end position of the positive pressure joint is spirally provided with a first heparin cap, the bottom end position of the first heparin cap is connected with a short sleeve, through the arranged injection needle head, a piston, a push rod, a side joint, a second heparin cap and a switching pipe, when the injection needle head just fits and penetrates through the inside of the second heparin cap, the switching pipe can be connected with the second heparin cap by virtue of the spiral connection of the switching pipe and the second heparin cap, so that the syringe body is quickly arranged at the upper left position of the side joint, the indwelling needle can quickly inject a therapeutic liquid medicine into the whole indwelling needle by taking the syringe body as an independent pipeline, can effectively accelerate the progress of the whole infusion treatment and reduce the times of repeatedly puncturing the heparin cap in the later period.

Description

Remaining needle with pre-filled syringe

Technical Field

The utility model relates to the field of remaining needles, in particular to a remaining needle with a prefilled syringe.

Background

The use of remaining needle can reduce the misery that the infant caused because of relapse venipuncture and the fear of making a needle, alleviate the headings's anxiety, the clinical medicine of being convenient for, urgent, critical patient's rescue is used medicine, alleviate nurse's work load, it is painful to reduce the infant, therefore the vein is kept somewhere the needle and is being used widely in clinic, in the face of this special colony of infant, the length of vein is kept somewhere needle and the comfort of infant becomes nurse and the headings's problem of paying attention to, also is the prerequisite of sign and popularization that the needle of keeping somewhere was used successfully.

Keep somewhere needle on the market when using, need puncture the inside of heparin cap many times, will play the medicament injection human body of different effects internal, whole injection operation is very loaded down with trivial details, and influences the progress of whole infusion treatment to before with whole keeping somewhere needle puncture into human blood vessel, need connect liquid earlier, will keep somewhere the gas outgoing in the needle, whole exhaust operation is convenient and very hard inadequately.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an indwelling needle having a prefilled syringe, which solves the problems of the background art mentioned above.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a keep somewhere needle with pre-filled syringe, includes transparent tee bend, one side position sealing connection of transparent tee bend has the extension pipe, the feed liquor end position sealing connection of extension pipe has the malleation to connect, and the top position spiral that the malleation connects installs first heparin cap, the bottom position of first heparin cap is connected with the short sleeve pipe, one side position that the malleation connects is connected with the side joint, and the top position spiral that the side joint connects installs second heparin cap, the outside position spiral connection of second heparin cap has the switching pipe.

Preferably, a needle holding handle is installed on the other side of the transparent tee joint in a combined mode, a steel needle is connected to the bottom end of the transparent tee joint, and the interior of the steel needle is communicated with the interior of the extension tube through the transparent tee joint.

Preferably, the inner part of the positive pressure joint and the inner part of the side joint are communicated with each other, and the connection of the side joint and the positive pressure joint forms a Y-shaped structure, and the positive pressure joint and the short sleeve are in a nested structure.

Preferably, the exhaust mouth of pipe has all been seted up through integrative injection moulding processing in short sheathed tube both sides position, and the inside top position of short sheathed tube bonds and has the upper gasket, short sheathed tube inside below position bonds and has lower gasket, and lower gasket, upper gasket respectively with the malleation connect between nested setting, the internal surface of lower gasket, upper gasket respectively with the malleation connect between laminate each other.

Preferably, the position of the central part of the interior of the adapter tube is connected with an injection needle, the position of the upper left side of the adapter tube is connected with an injector body, a piston is arranged at the position of the lower portion of the interior of the injector body, a push rod is connected to the position of the upper left side of the piston, the push rod and the injector body are connected in an inserting mode, and the outer surface of the piston and the inner surface of the injector body are mutually attached.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the indwelling needle, the injection needle head, the piston, the push rod, the side joint, the second heparin cap and the adapter tube are arranged, the adapter tube is in spiral connection with the second heparin cap by virtue of the adapter tube when the injection needle head just fits and penetrates through the inside of the second heparin cap, so that the injector body is quickly installed at the upper left position of the side joint, the indwelling needle can be used for quickly injecting a treatment liquid medicine into the whole indwelling needle through the independent pipeline which is the injector body, the progress of the whole infusion treatment can be effectively accelerated, and the frequency of repeatedly penetrating the heparin cap in the later period is reduced;

2. according to the utility model, through the arrangement of the first heparin cap, the exhaust pipe openings, the short sleeve, the positive pressure joint, the lower gasket and the upper gasket, the first heparin cap after being pulled can be quickly separated from the positive pressure joint, and after the first heparin cap is outwards stretched to a certain position due to stress, the blood in the blood vessel of a human body flows back, and meanwhile, the gas in the whole indwelling needle can be quickly discharged through the interiors of the plurality of exhaust pipe openings.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at point A according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;

fig. 4 is a schematic top view of the upper gasket of the present invention.

In the figure: 1-transparent tee joint, 2-needle holding handle, 3-steel needle, 4-extension tube, 5-positive pressure joint, 6-first heparin cap, 7-short sleeve, 8-side joint, 9-second heparin cap, 10-adapter tube, 11-injection needle, 12-injector body, 13-piston, 14-push rod, 15-exhaust tube mouth, 16-upper washer and 17-lower washer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a keep somewhere needle with pre-filled syringe, including transparent tee bend 1, one side position sealing connection of transparent tee bend 1 has extension pipe 4, the feed liquor position sealing connection of extension pipe 4 has malleation to connect 5, and the top position spiral of malleation joint 5 installs first heparin cap 6, the bottom position of first heparin cap 6 is connected with short sleeve 7, one side position that malleation connects 5 is connected with side joint 8, and the top position spiral of side joint 8 installs second heparin cap 9, the outside position spiral of second heparin cap 9 is connected with switching pipe 10.

A needle holding handle 2 is assembled and installed at the other side of the transparent tee joint 1, the bottom end of the transparent tee joint 1 is connected with a steel needle 3, the interior of the steel needle 3 is communicated with the interior of an extension tube 4 through the transparent tee joint 1, and the sharp end of the steel needle 3 can facilitate the whole indwelling needle to quickly penetrate into a blood vessel of a human body; the inside of the positive pressure joint 5 and the inside of the side joint 8 are communicated with each other, the connection of the side joint 8 and the positive pressure joint 5 forms a Y-shaped structure, the nesting structure between the positive pressure joint 5 and the short sleeve 7, when the infusion needle head penetrates through the inside of the first heparin cap 6, so that the infusion pipeline is communicated with the whole indwelling needle, the arrangement of the Y-shaped structure formed by the connection of the side joint 8 and the positive pressure joint 5 can play a certain auxiliary connection role in the connection of the whole indwelling needle and the infusion pipeline; the two sides of the short sleeve 7 are provided with exhaust pipe orifices 15 through integral injection molding, an upper gasket 16 is bonded at the upper position inside the short sleeve 7, a lower gasket 17 is bonded at the lower position inside the short sleeve 7, the lower gasket 17 and the upper gasket 16 are respectively nested with the positive pressure joint 5, the inner surfaces of the lower gasket 17 and the upper gasket 16 are respectively bonded with the outer surface of the positive pressure joint 5, when the first heparin cap 6 is quickly separated from the positive pressure joint 5 in a spiral rotation mode, and after the heparin cap is stressed to stretch outwards to a certain position, the blood in the blood vessel of a human body flows back, and meanwhile, the gas inside the whole indwelling needle is quickly discharged through the insides of the exhaust pipe orifices 15 under the connection and matching of the short sleeve 7, so that the whole indwelling needle has a function of facilitating exhaust; the inside central point department position of adapter tube 10 is connected with injection needle 11, and the upper left side position of adapter tube 10 is connected with syringe body 12, the inside below position of syringe body 12 is provided with piston 13, and the upper left side position of piston 13 is connected with push rod 14, alternate between push rod 14 and the syringe body 12 and be connected, laminate each other between the surface of piston 13 and the internal surface of syringe body 12, combine injection needle 11 in just agreeing with the inside of piercing through second heparin cap 9, adapter tube 10 will be with the help of self and the threaded connection of second heparin cap 9, make syringe body 12 installed the upper left side position of side joint 8 fast, also make whole remaining needle have the structure of a prefilled syringe.

The working process is as follows: when the indwelling needle is used, a medical worker manually punctures the steel needle 3 into a blood vessel together and the catheter is completely inserted into the blood vessel, then manually and quickly withdraws the needle core to place the soft catheter in the blood vessel, thereby facilitating later-stage infusion treatment, when the whole indwelling needle is assembled, the injection needle 11 just fits and penetrates through the inside of the second heparin cap 9, the adapter tube 10 is in spiral connection with the second heparin cap 9 by itself, so that the injector body 12 is quickly arranged at the upper left position of the side connector 8, and in the later stage, under the connection and cooperation of the piston 13 and the push rod 14, the whole indwelling needle can independently inject the liquid medicine for treating a patient into the inside of the whole indwelling needle by means of the injection container, when the medical worker is to place the indwelling needle into the blood vessel of the patient and needs to perform exhaust treatment on the indwelling needle, under the cooperation of the spiral connection, the first heparin cap 6 which is subjected to the manual traction acting force is connected with the positive pressure connector 5 in a spiral rotating mode, after the heparin cap is outwards stretched to a certain position due to stress, blood in the blood vessel of a human body flows back under the limiting action of the lower gasket 17 and the upper gasket 16, and meanwhile, gas in the whole indwelling needle is quickly discharged through the insides of the exhaust pipe orifices 15 under the connection and matching of the short sleeve 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An indwelling needle with a prefilled syringe, comprising a transparent tee (1), characterized in that: one side position sealing connection of transparent tee bend (1) has extension pipe (4), the feed liquor position sealing connection of extension pipe (4) has malleation to connect (5), and the top position spiral of malleation joint (5) installs first heparin cap (6), the bottom position of first heparin cap (6) is connected with short sleeve pipe (7), one side position that malleation connects (5) is connected with side joint (8), and the top position spiral of side joint (8) installs second heparin cap (9), the outside position spiral connection of second heparin cap (9) has switching pipe (10).

2. An indwelling needle having a pre-filled syringe as claimed in claim 1, in which: the needle holding handle (2) is installed on the other side of the transparent tee joint (1) in a combined mode, the bottom end of the transparent tee joint (1) is connected with a steel needle (3), and the interior of the steel needle (3) is communicated with the interior of the extension pipe (4) through the transparent tee joint (1).

3. An indwelling needle having a pre-filled syringe as claimed in claim 1, in which: the interior of the positive pressure joint (5) and the interior of the side joint (8) are communicated with each other, the side joint (8) and the positive pressure joint (5) are connected to form a Y-shaped structure, and the positive pressure joint (5) and the short sleeve (7) are in a nested structure.

4. An indwelling needle having a pre-filled syringe as claimed in claim 1, in which: exhaust pipe mouth (15) have all been seted up through integrative injection moulding processing to the both sides position of short sleeve pipe (7), and the inside top position of short sleeve pipe (7) bonds and has upper gasket (16), the inside below position of short sleeve pipe (7) bonds and has lower packing ring (17), and lower packing ring (17), upper gasket (16) respectively with the malleation connect nested setting between (5), the internal surface of lower packing ring (17), upper gasket (16) respectively with laminate each other between the surface of malleation joint (5).

5. An indwelling needle having a pre-filled syringe as claimed in claim 1, in which: the utility model discloses a syringe, including adapter tube (10), syringe needle (11), piston (13), push rod (14), the inside lower position of syringe body (12), and the upper left side position of piston (13) is connected with syringe body (12), the inside lower position of adapter tube (10) is provided with piston (13), and the upper left side position of piston (13) is connected with push rod (14), alternate between push rod (14) and syringe body (12) and be connected, laminate each other between the surface of piston (13) and the internal surface of syringe body (12).