CN111888584A

CN111888584A - Needleless injector

Info

Publication number: CN111888584A
Application number: CN202010925667.8A
Authority: CN
Inventors: 沈沛
Original assignee: Jiangsu Bana Medical Technology Co ltd
Current assignee: Jiangsu Bana Medical Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2020-11-06

Abstract

The invention relates to the technical field of injectors and discloses a needleless injector which comprises an ampoule bottle, an ampoule medicine taking device and a pressurizer, wherein the ampoule bottle comprises an ampoule jacket, an ampoule piston and an ampoule push rod, the medicine taking device comprises a needle base, a needle point and a protective cover, the ampoule jacket is installed at one end of the needle base, and two sides of the pressurizer are clamped between one end of the ampoule jacket and the side wall of one end of the needle base. The needleless injector has no buckle structure, can be installed only by blind insertion, is very convenient to install and use, is particularly friendly to the old, has a lower price than a universal part due to the part 'ampoule jacket', has obvious price advantage in long-term use, and can relieve the economic pressure of patients.

Description

Needleless injector

Technical Field

The invention relates to the technical field of injectors, in particular to a needleless injector.

Background

Syringes are a common medical device. As early as the 15 th century, kathler, italian, proposed the principle of the syringe. Gas or liquid is primarily drawn or injected with a needle. Syringes may also be used for injection through rubber septa in medical devices, containers, scientific instruments such as in some chromatography.

The advent of syringes is an epoch-making revolution in the field of medical devices. This process of drawing, injecting gas or liquid with a needle is called injection. The injector consists of a syringe with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid or extracting the liquid or the liquid from the inaccessible area by other methods, wherein the liquid or gas is sucked from the small hole at the front end of the syringe when the core rod is pulled out, and the liquid or gas is extruded when the core rod is pushed in.

The ampoule bottle and the medicine taking device used by the existing injector are relatively complex in structure, so that the production cost of the injector is high, and when the injector is used, the operation steps are too many, so that the use efficiency of the injector is reduced, and therefore, the needleless injector is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a needleless injector, which has no buckle structure, can be installed only by blind insertion, is very convenient to install and use, is particularly friendly to the old, and has the advantages of obvious price advantage in long-term use, capability of relieving the economic pressure of a patient and the like because the ampoule jacket of a part is lower in price than a universal money, and solves the problems that the ampoule bottle and a medicine taking device used by the existing injector are relatively complex in structure, the production cost of the injector is higher, and the operating steps are too many when the injector is used, so that the use efficiency of the injector is reduced.

In order to realize that the product has no buckle structure, can be installed only by blind insertion, is very convenient to install and use, is particularly friendly to the old, has lower price than a universal part ampoule jacket, has obvious price advantage in long-term use and can reduce the economic pressure of a patient, the invention provides the following technical scheme: the utility model provides a needleless injector, includes ampoule, gets medicine ware and presser, the ampoule includes ampoule overcoat, ampoule piston and ampoule push rod, it includes needle file, needle point and visor to get the medicine ware, the one end at the needle file is installed to the ampoule overcoat, the both sides joint of presser is between the one end of ampoule overcoat and needle file one end lateral wall.

Preferably, ampoule piston sliding connection is at the inner wall of ampoule overcoat, the draw-in groove has been seted up to the one end of ampoule piston, the one end fixedly connected with dop of ampoule push rod, just the dop of ampoule push rod one end matches the joint in the one end draw-in groove of ampoule piston, just the ampoule piston is made by rubber.

Preferably, a pinhole is formed at one end of the ampoule jacket, and the diameter of the pinhole is the same as the outer diameter of the needle tip.

Preferably, the side wall of the ampoule jacket is provided with scales, and the ampoule jacket and the ampoule push rod are both made of transparent PC materials.

Preferably, the needle point is fixedly arranged in the middle of one end of the needle seat, and the length of the needle point is less than two thirds of the length of the protective cover.

Preferably, the smaller one end fixedly connected with joint section of thick bamboo of opening of needle file, the visor matches the joint in the lateral wall of joint section of thick bamboo, and needle file and visor are made by the PP material.

Preferably, the length of the ampoule push rod is the same as that of the ampoule jacket.

Preferably, the terminal surface of presser is U word shape, the mounting groove has all been seted up at the both ends middle part of presser, a joint section of thick bamboo of needle file one end matches the joint in the mounting groove, the one end of ampoule overcoat is supported in the one end of mounting groove, the ampoule push rod is located the inboard of mounting groove.

Compared with the prior art, the invention provides a needleless injector, which has the following beneficial effects:

1. this needleless injector, through installing the one end at ampoule piston with the ampoule push rod, then with ampoule piston sliding connection in the inside of ampoule overcoat, install the needle point in the needle file, then install the one end at ampoule overcoat with the needle file, thereby install ampoule and get the medicine ware together, take the visor of getting the medicine ware, then with the one end joint of needle file in the mounting groove, with the other end joint of ampoule overcoat in the inboard of mounting groove, make this product do not have buckle structure, only need blind plug can install, very easy to assemble uses, especially to old, the use is very friendly.

2. The pressurizer of the needleless injector can be repeatedly used for a long time, other parts are disposable consumables, and the outer sleeve of the part ampoule is lower in price than the universal part, so that the cost advantage is obvious in long-term use, and the economic pressure of a patient can be relieved.

Drawings

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

FIG. 2 is an exploded view of an ampoule of the present invention;

FIG. 3 is an exploded view of the present invention;

fig. 4 is a schematic view of the structure of the pressurizer of the present invention.

In the figure: 1. the ampoule is sleeved; 2. an ampoule piston; 3. an ampoule push rod; 4. a pinhole; 5. a needle seat; 6. a needle tip; 7. a protective cover; 8. a pressurizer; 9. and (4) mounting the groove.

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, a needleless injector comprises an ampoule bottle, a medicine taking device and a pressurizer 8, wherein the ampoule bottle comprises an ampoule jacket 1, an ampoule piston 2 and an ampoule push rod 3, the medicine taking device comprises a needle base 5, a needle point 6 and a protective cover 7, the ampoule jacket 1 is installed at one end of the needle base 5, and two sides of the pressurizer 8 are clamped between one end of the ampoule jacket 1 and one side wall of one end of the needle base 5.

The ampoule bottle, the medicine taking device and the pressurizer 8 are installed and combined together to form the needleless injector, two sides of the pressurizer 8 are clamped between one end of the ampoule jacket 1 and one side wall of one end of the needle seat 5, and the ampoule jacket 1 and the needle seat 5 can be firmly fixed together by the pressurizer 8.

The ampoule piston 2 is connected to the inner wall of the ampoule jacket 1 in a sliding manner, a clamping groove is formed in one end of the ampoule piston 2, a clamping head is fixedly connected to one end of the ampoule piston 2, the clamping head at one end of the ampoule piston 2 is clamped in the clamping groove at one end of the ampoule piston 2 in a matching manner, and the ampoule piston 2 is made of rubber; the dop through 3 one ends of ampoule push rods matches the joint in the one end draw-in groove of ampoule piston 2 to can install ampoule push rods 3 and ampoule piston 2 fixedly. One end of the ampoule jacket 1 is provided with a needle hole 4, and the diameter of the needle hole 4 is the same as the outer diameter of the needle point 6; the diameter of the needle hole 4 is the same as the outer diameter of the needle tip 6, so that the injected medicament can be conveniently output from the needle tip 6 through the needle hole 4. The side wall of the ampoule jacket 1 is provided with scales, and the ampoule jacket 1 and the ampoule push rod 3 are both made of transparent PC materials; the side wall of the ampoule jacket 1 is provided with scales, and the ampoule jacket 1 and the ampoule push rod 3 are both made of transparent PC materials, so that the syringe is ensured to have the basic capacity of the traditional syringe and the function of observing the medicament. The needle point 6 is fixedly arranged in the middle of one end of the needle base 5, and the length of the needle point 6 is less than two thirds of the length of the protective cover 7; ensures that the needle point 6 can be well protected when being accommodated inside the protective cover 7. The end with a smaller opening of the needle base 5 is fixedly connected with a clamping cylinder, the protective cover 7 is clamped on the side wall of the clamping cylinder in a matching manner, and the needle base 5 and the protective cover 7 are both made of PP materials; the protective cover 7 is matched and clamped on the side wall of the clamping cylinder, so that the clamping effect of the protective cover 7 arranged on the side wall of the needle seat 5 is better. The length of the ampoule push rod 3 is the same as that of the ampoule jacket 1; reasonable structure, and ensures that the ampoule push rod 3 and the ampoule jacket 1 are convenient for packaging treatment during packaging. The end face of the pressurizer 8 is U-shaped, mounting grooves 9 are formed in the middle parts of two ends of the pressurizer 8, a clamping cylinder at one end of the needle base 5 is clamped in the mounting grooves 9 in a matching mode, one end of the ampoule jacket 1 is supported at one end of the mounting grooves 9, and the ampoule push rod 3 is located on the inner side of the mounting grooves 9; through the one end joint of needle file 5 in mounting groove 9, the one end of ampoule overcoat 1 supports in the one end of mounting groove 9 to can install this ware of moulding plastics and accomplish.

The during operation, at first utilize the ampoule, get the medicine ware and the pressurizer 8 is assembled the syringe, install ampoule push rod 3 in the one end of ampoule piston 2, then with 2 sliding connection of ampoule piston in the inside of ampoule overcoat 1, install needle point 6 in needle file 5, then install the one end at ampoule overcoat 1 with needle file 5, thereby install ampoule and get the medicine ware together, take off the visor 7 of getting the medicine ware, then with the one end joint of needle file 5 in mounting groove 9, with the other end joint of ampoule overcoat 1 in the inboard of mounting groove 9, just can extract liquid medicine and inject and use.

In conclusion, the structure of the ampoule jacket 1 in the application document is different from that of the traditional ampoule jacket, and the ampoule jacket 1 has a simple structure and lower cost; the needle seat 5 in the application document is different from the traditional needle seat, and the structure of the needle seat 5 is simple and the cost is lower.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A needleless injector comprising an ampoule, a drug dispenser and a pressurizer (8), characterized in that: the ampoule bottle includes ampoule overcoat (1), ampoule piston (2) and ampoule push rod (3), the ware of getting it filled includes needle file (5), needle point (6) and visor (7), the one end in needle file (5) is installed in ampoule overcoat (1), the both sides joint of presser (8) is between the one end of ampoule overcoat (1) and needle file (5) one end lateral wall.

2. A needleless injector as in claim 1 wherein: ampoule piston (2) sliding connection is at the inner wall of ampoule overcoat (1), the draw-in groove has been seted up to the one end of ampoule piston (2), the one end fixedly connected with dop of ampoule push rod (3), just the dop of ampoule push rod (3) one end matches the joint in the one end draw-in groove of ampoule piston (2), just ampoule piston (2) are made by rubber.

3. A needleless injector as in claim 1 wherein: a needle hole (4) is formed in one end of the ampoule jacket (1), and the diameter of the needle hole (4) is the same as the outer diameter of the needle point (6).

4. A needleless injector as in claim 1 wherein: the side wall of ampoule overcoat (1) is provided with the scale, ampoule overcoat (1) and ampoule push rod (3) are made by transparent PC material.

5. A needleless injector as in claim 1 wherein: the needle point (6) is fixedly arranged in the middle of one end of the needle seat (5), and the length of the needle point (6) is less than two thirds of the length of the protective cover (7).

6. A needleless injector as in claim 1 wherein: the small one end fixedly connected with joint section of thick bamboo of opening of needle file (5), visor (7) match the joint at the lateral wall of joint section of thick bamboo, just needle file (5) and visor (7) are made by the PP material.

7. A needleless injector as in claim 1 wherein: the length of the ampoule push rod (3) is the same as that of the ampoule jacket (1).

8. A needleless injector as in claim 1 wherein: the terminal surface of presser (8) is U word shape, mounting groove (9) have all been seted up at the both ends middle part of presser (8), a joint section of thick bamboo of needle file (5) one end matches the joint in mounting groove (9), the one end of ampoule overcoat (1) is supported in the one end of mounting groove (9), ampoule push rod (3) are located the inboard of mounting groove (9).