CN217566236U

CN217566236U - Double-cavity injection needle and injector

Info

Publication number: CN217566236U
Application number: CN202123206811.1U
Authority: CN
Inventors: 常聪
Original assignee: Chengdu Xinqing Photoelectric Instrument Co ltd
Current assignee: Chengdu Xinqing Photoelectric Instrument Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-10-14
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a two-chamber syringe needle and syringe, two-chamber syringe needle includes first needle body and second needle body, first needle body diameter is greater than second needle body diameter, first needle body includes first straight line section, arc linkage segment and second straightway, wherein, the one end of first straight line section sets up first needle body puncture end, and its other end passes through the arc linkage segment is connected the second straightway, first needle body part sets up in the first straight line section, and first needle body puncture end and second needle body puncture end parallel and level. When adopting the utility model provides a during two-chamber syringe needle, two kinds of media get into the syringe needle simultaneously through first needle body and second needle body respectively, and two kinds of media that come out from the syringe needle can form inside and outside two-layer cyst formula structure, have realized accomplishing when the treatment is used medicine, convenient operation is high-efficient.

Description

Double-cavity injection needle and injector

Technical Field

The utility model relates to the technical field of medical equipment, specific theory relates to a two-chamber syringe needle and syringe.

Background

The common needle head can not form an encapsulated structure in a closed space or organ tissues at one time, and can not realize the experiment and clinical application of the encapsulated hydrogel at all.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-cavity injection needle and an injector aiming at the defects existing in the prior art.

The utility model discloses a concrete technical scheme as follows:

the utility model discloses one of them technical scheme is a two-chamber syringe needle, two-chamber syringe needle includes first needle body and second needle body, first needle body diameter is greater than second needle body diameter, first needle body includes first straight line section, arc linkage segment and second straightway, wherein, the one end of first straight line section sets up first needle body puncture end, and its other end passes through the arc linkage segment is connected the second straightway, second needle body part sets up in the first straight line section, and first needle body puncture end and second needle body puncture end parallel and level.

Preferably, the first straight line segment is parallel to the second straight line segment.

Preferably, the first straight line segment, the second straight line segment, and the second needle body are parallel to each other.

As a preferable technical scheme, the first needle body piercing end is flush with the second needle body piercing end, and the other end of the first needle body piercing end penetrates through the arc-shaped connecting section, so that the second needle body is partially arranged in the first straight line section, wherein the joint of the second needle body and the arc-shaped connecting section is in sealing connection.

Preferably, the first straight line section is integrally connected with the arc connecting section, and the arc connecting section is integrally connected with the second straight line section.

The utility model discloses another technical scheme a two-chamber syringe, include as above arbitrary two-chamber syringe needle, the one end of first needle body with the one end of second needle body is connected one respectively and is pushed the end.

According to the preferable technical scheme, the injection end comprises a connecting port, an injection cavity, a piston and a push rod, the injection cavity is connected with the connecting port, the piston is movably arranged in the injection cavity and connected with the push rod, and the connecting port is hermetically connected with one end of the first needle body or one end of the second needle body and used for communicating the injection cavity with the first needle body or the second needle body.

As a preferable technical scheme, the push rod is connected with a push handle.

Has the advantages that:

when adopting the utility model provides a during two-chamber syringe needle, two kinds of media get into the syringe needle simultaneously through first needle body and second needle body respectively, and two kinds of media that come out from the syringe needle can form inside and outside two-layer cyst formula structure, not only can realize accomplishing when the treatment is used medicine, can also realize experiment and clinical application of cyst formula aquogel.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a front view of a double lumen needle in an embodiment of the present invention.

Fig. 2 is a schematic view of the piercing end of a double lumen needle in an embodiment of the present invention.

Fig. 3 is a schematic structural view of a dual chamber syringe according to an embodiment of the present invention.

In the figure, 100 is a first needle body, 110 is a first straight line segment, 120 is an arc-shaped connecting segment, 130 is a second straight line segment, 140 is a first needle body puncture end, 200 is a second needle body, 210 is a second needle body puncture end, 300 is a push injection end, 310 is a connecting port, 320 is an injection cavity, 330 is a piston, 340 is a push rod, and 350 is a pushing hand.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions in the present application as to "first," "second," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention will now be further described with reference to the accompanying drawings.

Example 1

Fig. 1 shows a front view of a double-lumen injection needle in an embodiment of the present invention. Fig. 2 shows a schematic view of the piercing end of a double-lumen needle in an embodiment of the present invention. As shown in fig. 1 and 2, the embodiment of the present invention provides a double-cavity injection needle. This two-chamber injection needle includes first needle 100 and second needle 200, first needle 100 diameter is greater than second needle 200 diameter, first needle 100 includes first straight line section 110, arc linkage segment 120 and second straightway 130, wherein, the one end of first straight line section 110 sets up first needle puncture end 140, and its other end passes through arc linkage segment 120 connects second straightway 130, second needle 200 part sets up in the first straight line section 110, and first needle puncture end 140 and second needle puncture end 210 parallel and level.

It should be noted that the diameter of the first needle 100 is larger than the diameter of the second needle 200, and when the second needle 200 is partially disposed in the first straight line segment 110, the space between the first needle 100 and the second needle 200 serves as an input channel for one medium, and the second needle 200 itself has an input channel serving as an input channel for another medium. So that the two mediums output through the first needle body 100 and the second needle body 200 form a capsule structure at the output end of the needle head, thereby realizing the simultaneous completion of the treatment medication and the experimental and clinical application of the capsule hydrogel.

In one embodiment, the first linear segment 110 is parallel to the second linear segment 130. Meanwhile, the first straight line segment 110, the second straight line segment 130 and the second needle body 200 are parallel to each other.

In the embodiment of the present invention, the first needle body piercing end 140 is flush with the second needle body piercing end 210, and the other end thereof passes through the arc-shaped connecting section 120, so that the second needle body 200 is partially disposed in the first straight section 110, wherein the junction of the second needle body 200 and the arc-shaped connecting section 120 is a sealing connection.

In the embodiment of the present invention, the first straight line segment 110 and the arc connecting segment 120 are integrally connected, and the arc connecting segment 110 and the second straight line segment 130 are integrally connected.

In the embodiment of the present invention, a drug or a medium may be injected into a tissue at the same time, and for example, a medium a may be selected, and specifically, a hydrogel having a drug property; one of the B media is selected, and may specifically be a hydrogel of a supportive nature. In animal experiments or clinical application, the embodiment of the utility model provides an use heart ventricle treatment here as the example, inject the B medium into the ventricle wall through the two-chamber syringe needle that this embodiment provided, play the supporting effect to the ventricle wall, inject medium A around the ventricle wall simultaneously (medium A supposes for gelatinous slowly-releasing anti-inflammatory drug). Thus, the injection of two different media is completed under the condition of only one wound surface, and simultaneously, the medium A can accurately act around the medium B, so that the problem of operation which cannot be performed in a plurality of times is solved (for example, after the medium B is injected into the ventricular wall through separate operation, the injection of the medium A around the medium B cannot be realized due to the separation of the outside of the heart and even the thoracic cavity), and the simultaneous completion of treatment and medication is realized.

Example 2:

fig. 3 shows a schematic structural view of a dual chamber syringe in an embodiment of the present invention. As shown in fig. 3, the embodiment of the present invention provides a dual chamber syringe. The double-cavity syringe comprises the double-cavity injection needle head in embodiment 1, and one end of the first needle body 100 and one end of the second needle body 200 are respectively connected with a push injection end 300.

Furthermore, the bolus end 300 includes a connection port 310, an injection cavity 320, a piston 330 and a push rod 340, the injection cavity 320 is connected to the connection port 310, the piston 330 is movably disposed in the injection cavity 320, the piston 330 is connected to the push rod 340, the connection port 310 is hermetically connected to one end of the first needle 100 or one end of the second needle 200, so as to communicate the injection cavity 320 with the first needle 100 or the second needle 200.

In one embodiment, the push rod 340 is coupled to a push handle 350 to facilitate an injection procedure by a medical professional.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a two-chamber syringe needle, two-chamber syringe needle includes first needle body and second needle body, first needle body diameter is greater than second needle body diameter, a serial communication port, first needle body includes first straight line section, arc linkage segment and second straightway, wherein, the one end of first straight line section sets up first needle body puncture end, and its other end passes through the arc linkage segment is connected the second straightway, second needle body part sets up in the first straight line section, and first needle body puncture end and second needle body puncture end parallel and level.

2. The dual-lumen injection needle of claim 1 wherein the first linear segment is parallel to the second linear segment.

3. The dual lumen needle of claim 1 wherein said first linear segment, said second linear segment and said second needle are parallel to each other.

4. The dual-chamber injection needle of claim 1, wherein the first needle body piercing end is flush with the second needle body piercing end, and the other end thereof passes through the arcuate connecting segment, so that the second needle body portion is disposed within the first straight segment, wherein the junction of the second needle body and the arcuate connecting segment is a sealed connection.

5. The dual-lumen injection needle of claim 1 wherein said first straight section is integrally connected to said arcuate connecting section and said arcuate connecting section is integrally connected to said second straight section.

6. A double-chamber syringe comprising the double-chamber needle according to any one of claims 1 to 5, wherein one end of the first needle body and one end of the second needle body are respectively connected with a push injection end.

7. The dual-chamber syringe of claim 6, wherein the injection end comprises a connection port, an injection chamber, a piston and a push rod, the injection chamber is connected to the connection port, the piston is movably disposed in the injection chamber, the piston is connected to the push rod, and the connection port is hermetically connected to one end of the first needle body or one end of the second needle body, so as to communicate the injection chamber with the first needle body or the second needle body.

8. The dual chamber syringe of claim 7 wherein said pushrod is connected to a pushrod.