CN217793991U

CN217793991U - High-efficiency needleless injector

Info

Publication number: CN217793991U
Application number: CN202220465849.6U
Authority: CN
Inventors: 齐梅婷
Original assignee: Fifth Medical Center of PLA General Hospital
Current assignee: Fifth Medical Center of PLA General Hospital
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-11-15
Anticipated expiration: 2032-03-04

Abstract

The utility model belongs to the technical field of medical instrument, especially, relate to a high-efficient needleless syringe, including the syringe body, the top of syringe body is provided with holds power subassembly, and one side joint of holding power subassembly has the injection subassembly, and the bottom butt of holding power subassembly has the safety subassembly that prevents the pine and take off, and the inboard sliding connection in bottom of syringe body has and puts the subassembly through holding power subassembly driven liquid medicine, holds and is provided with the observation area territory on the syringe body lateral wall that power subassembly, liquid medicine drainage subassembly correspond. The utility model discloses simple structure, convenient operation, it is safe laborsaving, through observing the region, the displacement who observes compression unit can judge the injection measurement, through observing the region, judges whether reach the appointed state of holding power.

Description

High-efficient needleless injector

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a high-efficient needleless injector.

Background

The needleless injector completes the hypodermic injection of the liquid medicine by utilizing a pressure jet principle, namely, the liquid medicine in the medicine tube is pushed to form a superfine liquid medicine column through a micropore by pressure generated by a pressure device in the needleless injector, so that the liquid medicine instantly penetrates through the epidermis of a human body to reach the subcutaneous part, and the liquid medicine is dispersed and absorbed in the subcutaneous part with the diameter of 3-5 cm. The injection metering of the existing needleless injector is certain, cannot be adjusted according to requirements, lacks of safety protection measures, is easily damaged by injection pressure during misoperation, and has potential safety hazards during use. Therefore, there is a need for a high efficiency needleless injector that can be used to inject quickly, easily and safely.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient needleless injector to solve above-mentioned problem, reach the purpose of quick, convenient, safe injection.

In order to achieve the above object, the utility model provides a following scheme: a high-efficiency needleless injector comprises an injector body, wherein a power storage assembly is arranged at the top end of the injector body, an injection assembly is clamped on one side of the power storage assembly, a safety assembly for preventing loosening is abutted against the bottom end of the power storage assembly, a liquid medicine drainage assembly driven by the power storage assembly is connected to the inner side of the bottom end of the injector body in a sliding manner, and an observation area is arranged on the outer side wall of the injector body corresponding to the power storage assembly and the liquid medicine drainage assembly;

it connects to hold power subassembly including rotating the power knob that holds on syringe body top, hold the bottom surface both sides of power knob and be the first connecting rod of fixedly connected with respectively, two the bottom surface fixedly connected with thread bush of first connecting rod, thread bush internal thread cover is equipped with the top of holding the compression unit of power through the compression, the injection subassembly joint is in the bottom of compression unit, safety subassembly butt is in the bottom outside of compression unit.

Preferably, the compression unit includes fixed connection and is in the inboard fixed plate of syringe body, the top butt of fixed plate has the power screw rod of holding, thread bush threaded sleeve establishes the top outside of holding the power screw rod, the bottom bilateral symmetry fixedly connected with of holding the power screw rod has elastic third connecting rod, two the bottom of third connecting rod is passed the fixed plate, two the centre gripping has the kicking block between the bottom of third connecting rod, the top surface of kicking block with fixedly connected with second spring between the bottom surface of fixed plate, the kicking block bottom surface with subassembly fixed connection is taken out to the liquid medicine, safe subassembly butt is in the outside of two third connecting rods.

Preferably, the safety assembly comprises two safety stoppers which are respectively abutted against the outer sides of the third connecting rods, the safety stoppers are fixedly connected through limiting rings, via holes are formed in two side walls of the injector body respectively, the safety stoppers are far away from one ends of the third connecting rods penetrate through the via holes respectively and are located in the via holes, the limiting rings are vertically and slidably connected to the inner side walls of the injector body, and the safety stoppers are vertically and slidably connected to the via holes respectively.

Preferably, the injection subassembly includes the second connecting rod, the middle-end of second connecting rod passes the fixed plate and with the perforation of fixed plate is inboard articulated, the second connecting rod is close to a plurality of second of the vertical fixedly connected with in one side of kicking block are protruding, are located the low end protruding top surface butt of second is in the bottom surface of kicking block, keep away from in second connecting rod bottom one side of kicking block with the first spring of fixedly connected with between the syringe body inside wall, keep away from on the top of second connecting rod one side contact of kicking block is provided with the injection button, the injection button passes the syringe body lateral wall.

Preferably, the liquid medicine drainage assembly comprises a push rod vertically and fixedly connected to the bottom surface of the top block, the push rod is vertically and slidably connected to the inner side of the bottom end of the syringe body, the bottom end surface of the syringe body is in threaded connection with a medicine storage tube, the inner side wall of the medicine storage tube is vertically and slidably connected with a rubber plug, and the rubber plug is in threaded sleeve connection with the bottom end of the push rod.

Preferably, the bottom ends of the two third connecting rods, which are close to one side of the top block, are respectively and fixedly connected with first bulges, and the bottom surface of the top block abuts against the top surfaces of the two first bulges.

Preferably, the observation area is including setting up second viewing aperture and first viewing aperture on the syringe body lateral wall, the second viewing aperture with the top of holding the power screw rod corresponds the setting, the vertical a plurality of reference numerals that are provided with in push-down rod surface, first viewing aperture and one of them the reference numeral corresponds the setting, be provided with convex lens in the first viewing aperture.

The utility model discloses has following technological effect: the main functions of the power storage component are to provide power for the liquid medicine pumping and discharging component so as to be convenient for liquid medicine preparation and provide injection pressure for injecting the medicament; the injection assembly is used for releasing the pressure accumulated by the power accumulation assembly according to the requirement; the safety assembly is mainly used for preventing the injection assembly from being operated by mistake to release the injection pressure after the power storage assembly accumulates the designated pressure, so that the protection effect is achieved; the state of the power storage assembly can be observed through the observation area, and the liquid medicine suction state of the liquid medicine suction and discharge assembly is observed; the compression unit stores force in the moving process by rotating the force storage knob, the safety component abuts against the outer side of the compression unit so as to avoid damage to surrounding personnel due to the fact that the compression unit releases injection pressure in advance, and the injection component can release the injection pressure after operating the safety component according to requirements; the utility model discloses simple structure, convenient operation, it is safe laborsaving, through observing the region, the displacement who observes compression unit can judge the injection measurement, through observing the region, judges whether reach the appointed state of holding power.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the injector of the present invention in a front view;

FIG. 2 is a schematic sectional view of the syringe of the present invention in a front view;

FIG. 3 is a schematic cross-sectional view of the injector of the present invention viewed from the left;

FIG. 4 is a schematic view of the ejector block of the injector in the initial state of the present invention;

wherein, 1, the injector body; 2. a via hole; 3. a safety block; 4. a limiting plate; 5. a first protrusion; 6. a first viewing port; 7. a medicine storage tube; 8. an injection button; 9. a second viewing port; 10. a power-storing knob; 11. a first link; 12. a threaded sleeve; 13. a power storage screw; 14. a second link; 15. a fixing plate; 16. a second protrusion; 17. a first spring; 18. a push rod; 19. a rubber plug; 20. a second spring; 21. a limiting ring; 22. a top block; 23. a third link; 24. a convex lens.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.

Referring to fig. 1-4, the utility model provides a high-efficiency needleless injector, which comprises an injector body 1, wherein the top end of the injector body 1 is provided with a power storage assembly, one side of the power storage assembly is clamped with an injection assembly, the bottom end of the power storage assembly is abutted with a safety assembly for preventing loosening, the inner side of the bottom end of the injector body 1 is slidably connected with a liquid medicine drainage assembly driven by the power storage assembly, and the outer side wall of the injector body 1 corresponding to the power storage assembly and the liquid medicine drainage assembly is provided with an observation area;

the power component of holding is including rotating the power knob 10 of connecting on 1 top of syringe body, holds the bottom surface both sides of power knob 10 and is the first connecting rod 11 of fixedly connected with respectively, the bottom surface fixedly connected with thread bush 12 of two first connecting

rods

11, 12 internal thread bushes of thread bush are equipped with the top of holding the compression unit of power through the compression, and the injection subassembly joint is in the bottom of compression unit, and safety component butt is in the bottom outside of compression unit.

The main functions of the power storage component are to provide power for the liquid medicine pumping and discharging component so as to be convenient for liquid medicine preparation and provide injection pressure for injecting the medicament; the injection assembly is used for releasing the pressure accumulated by the power accumulation assembly according to the requirement; the safety assembly is mainly used for preventing the injection assembly from being operated by mistake to release the injection pressure after the power storage assembly accumulates the designated pressure, so that the protection effect is achieved; the state of the power storage assembly can be observed through the observation area, and the liquid medicine suction state of the liquid medicine suction and discharge assembly is observed; the compression unit stores force in the moving process by rotating the force storage knob 10, the safety component abuts against the outer side of the compression unit so as to avoid the compression unit from releasing injection pressure in advance and causing damage to surrounding personnel, and the injection component can release the injection pressure after operating the safety component according to requirements; the utility model discloses simple structure, convenient operation, it is safe laborsaving, through observing the region, the displacement who observes compression unit can judge the injection measurement, through observing the region, judges whether reach the appointed state of holding power.

Further optimize the scheme, the compression unit includes fixed plate 15 of fixed connection in syringe body 1 inboard, the top butt of fixed plate 15 has the power screw rod 13 of holding, 12 threaded sleeves of thread bush establish in the top outside of holding power screw rod 13, the bottom bilateral symmetry fixedly connected with of power screw rod 13 has elastic third connecting rod 23, fixed plate 15 is passed to the bottom of two third connecting rods 23, the centre gripping has kicking block 22 between the bottom of two third connecting rods 23, fixedly connected with second spring 20 between the top surface of kicking block 22 and the bottom surface of fixed plate 15, kicking block 22 bottom surface and liquid medicine are taken out and are put subassembly fixed connection, safe subassembly butt is in the outside of two third connecting rods 23, the injection subassembly joint is in the bottom surface of kicking block 22.

In an initial state, the top block 22 abuts against the top surface of the fixing plate 15 through the second spring 20, the power storage screw 13 is located at the lowest end, the top block 22 is clamped by the injection assembly, and the two third connecting rods 23 are limited by the safety assembly and cannot be released towards two sides; when the medicine needs to be sucked, the power storage knob 10 is manually rotated to sequentially drive the power storage screw 13, the two third connecting rods 23 and the ejector block 22 to ascend, so that the ejector block 22 continuously compresses the second spring 20 to store the power, the ascending position of the top end of the power storage screw 13 is observed through an observation area to judge whether the specified power storage requirement is met, the ejector block 22 is always clamped by the injection assembly in the power storage process, the safety assembly is always abutted against the outer sides of the two third connecting rods 23, and the ejector block 22 drives the medicine liquid drawing and releasing assembly to suck the medicine; when the medicine needs to be injected, the safety assembly is moved upwards, the two third connecting rods 23 are released under the action of the elastic force of the safety assembly, the two third connecting rods 23 are opened, a gap is formed between the two third connecting rods 23 and the top block 22, and at the moment, the injection assembly is operated to release the injection pressure to the medicine liquid pumping and discharging assembly so as to inject the medicine.

Further optimize the scheme, the safety assembly includes the safety dog 3 of butt respectively in two third connecting rods 23 outsides, two safety dog 3 pass through spacing ring 21 fixed connection, via hole 2 has been seted up respectively on the both sides wall of syringe body 1, two safety dog 3 keep away from the one end of third connecting rod 23 and pass two via holes 2 respectively and be located two via holes 2, the vertical sliding connection of spacing ring 21 is in the inside wall of syringe body 1, two safety dog 3 are vertical sliding connection respectively in two via holes 2.

Two safety stoppers 3 form the overall structure that can be in syringe body 1 vertical sliding connection through spacing ring 21, make two third connecting rods 23 keep the clamping state through two safety stoppers 3, make two third connecting rods 23 keep vertical state, so that when two third connecting rods 23 are by the state of butt and in the removal process, keep the relative position of two safety stoppers 3 and two third connecting rods 23, also conveniently when releasing injection pressure simultaneously, two safety stoppers 3 move in a flexible way.

Further optimize the scheme, syringe body 1 inboard fixedly connected with limiting plate 4, limiting plate 4 is located the below of kicking block 22.

In the initial state, the top block 22 abuts on the stopper plate 4 to restrict the lowest position of the top block 22 after the injection pressure is released, and to ensure that the top block 22 can store force again.

Further optimize the scheme, the injection subassembly includes second connecting rod 14, the middle-end of second connecting rod 14 passes fixed plate 15 and is articulated inboard with the perforation of fixed plate 15, second connecting rod 14 is close to a plurality of second archs 16 of the vertical fixedly connected with in one side of kicking block 22, the protruding 16 top surface butt of second that is located the low end is at the bottom surface of kicking block 22, the first spring 17 of fixedly connected with between one side of kicking block 22 and the syringe body 1 inside wall is kept away from to second connecting rod 14 bottom, the top of second connecting rod 14 is kept away from the one side contact of kicking block 22 and is provided with injection button 8, injection button 8 passes syringe body 1 lateral wall.

In the initial state, the bottom surface of the top block 22 abuts against the top surface of the second bulge 16 at the lower end, and as the top block 22 is pulled to rise by the two third connecting rods 23, the bottom surface of the top block 22 sequentially abuts against the second bulge 16 above until the force accumulation is finished; when the medicine needs to be injected, the two third connecting rods 23 are released firstly, then the injection button 8 is pressed to enable the second connecting rod 14 to rotate for a certain angle, the first spring 17 is compressed continuously, a gap is generated between the second connecting rod 14 and the top block 22, the top block 22 is released, and the top block 22 pushes the medicine liquid pumping and discharging assembly to inject the medicine.

Further optimize the scheme, the liquid medicine drainage assembly comprises a push rod 18 which is fixedly connected to the bottom surface of the top block 22 in a vertical mode, the push rod 18 is connected to the inner side of the bottom end of the injector body 1 in a vertical sliding mode, the bottom end face of the injector body 1 is connected with a medicine storage tube 7 in a threaded mode, a rubber plug 19 is connected to the inner side wall of the medicine storage tube 7 in a vertical sliding mode, and the rubber plug 19 is sleeved at the bottom end of the push rod 18 in a threaded mode.

When the medicine needs to be sucked, the push rod 18 and the rubber plug 19 move upwards along with the jacking block 22, and the medicine is sucked into the medicine storage tube 7 by utilizing negative pressure; when the injection of the medicament is required, the top block 22 transmits the injection pressure to the push rod 18 and the rubber plug 19, and the injection is completed.

In a further optimized scheme, the bottom ends of the two third connecting rods 23 close to one side of the top block 22 are respectively and fixedly connected with the first bulges 5, and the bottom surfaces of the top block 22 are abutted against the top surfaces of the two first bulges 5.

The top block 22 is always abutted against the top surfaces of the two first protrusions 5 in the ascending process, and when the two third connecting rods 23 are released, the top block 22 is separated from the two first protrusions 5.

According to a further optimized scheme, the observation area comprises a second observation port 9 and a first observation port 6 which are arranged on the side wall of the injector body 1, the second observation port 9 is arranged corresponding to the top of the power storage screw 13, a plurality of labels are vertically arranged on the surface of the push rod 18, the first observation port 6 is arranged corresponding to one label, and a convex lens 24 is arranged in the first observation port 6; the edge of the second porthole 9 is provided with a scale value.

The change of the mark of the push rod 18 in the rising process is observed through the convex lens 24, the medicine suction metering is judged according to the mark, the rising height of the power storage screw 13 is observed through the second observation port 9, and the power storage state is judged by referring to the scale value.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A high-efficiency needleless injector, characterized in that: the injection syringe comprises a syringe body (1), wherein a power storage assembly is arranged at the top end of the syringe body (1), an injection assembly is clamped on one side of the power storage assembly, a safety assembly for preventing loosening is abutted against the bottom end of the power storage assembly, a liquid medicine drawing and releasing assembly driven by the power storage assembly is connected to the inner side of the bottom end of the syringe body (1) in a sliding manner, and an observation area is arranged on the outer side wall of the syringe body (1) corresponding to the power storage assembly and the liquid medicine drawing and releasing assembly;

the power storage assembly is connected with a power storage knob (10) on the top end of the injector body (1) in a rotating mode, two first connecting rods (11) and two first connecting rods (11) are fixedly connected to two sides of the bottom surface of the power storage knob (10) respectively, a threaded sleeve (12) is fixedly connected to the bottom surface of each first connecting rod (11), the top end of a compression unit storing power through compression is sleeved on an inner thread of the threaded sleeve (12), the injection assembly is clamped to the bottom end of the compression unit, and the safety assembly is abutted to the outside of the bottom end of the compression unit.

2. The high efficiency needleless injector of claim 1, wherein: compression unit includes fixed connection and is in fixed plate (15) of syringe body (1) inboard, the top butt of fixed plate (15) has held power screw rod (13), thread bush (12) thread bush is established hold the top outside of power screw rod (13), the bottom bilateral symmetry fixedly connected with who holds power screw rod (13) has elastic third connecting rod (23), two the bottom of third connecting rod (23) is passed fixed plate (15), two the centre gripping has kicking block (22) between the bottom of third connecting rod (23), the top surface of kicking block (22) with fixedly connected with second spring (20) between the bottom surface of fixed plate (15), kicking block (22) bottom surface with subassembly fixed connection is taken out to the liquid medicine, safe subassembly butt is in the outside of two third connecting rods (23).

3. The high efficiency needleless injector of claim 2, wherein: the safety assembly comprises two safety stoppers (3) which are respectively abutted against the outer side of the third connecting rod (23) and are fixedly connected through a limiting ring (21), through holes (2) are respectively formed in two side walls of the syringe body (1), and the safety stoppers (3) are kept away from the one end of the third connecting rod (23) and are respectively penetrated through holes (2) and are positioned in two through holes (2), the limiting ring (21) is vertically connected with the inner side wall of the syringe body (1) in a sliding manner, and the safety stoppers (3) are respectively vertically connected in two through holes (2).

4. The high efficiency, needle-free injector of claim 3, wherein: the injection assembly comprises a second connecting rod (14), the middle end of the second connecting rod (14) penetrates through the fixing plate (15) and is hinged to the inner side of a through hole of the fixing plate (15), the second connecting rod (14) is close to a plurality of second protrusions (16) fixedly connected to one side of the ejector block (22), the second protrusions (16) are located at the lower end, the top surfaces of the second protrusions (16) are abutted to the bottom surface of the ejector block (22), the bottom end of the second connecting rod (14) is far away from one side of the ejector block (22) and a first spring (17) fixedly connected between the inner side walls of the injector body (1), the top end of the second connecting rod (14) is far away from one side of the ejector block (22) to be provided with an injection button (8), and the injection button (8) penetrates through the side wall of the injector body (1).

5. The high efficiency needleless injector of claim 2, wherein: the liquid medicine is taken out and is put subassembly includes vertical fixed connection and be in push rod (18) of kicking block (22) bottom surface, the vertical sliding connection of push rod (18) is in the bottom of syringe body (1) is inboard, the bottom face threaded connection of syringe body (1) has storage medicine pipe (7), the vertical sliding connection of storage medicine pipe (7) inside wall has rubber buffer (19), rubber buffer (19) screw thread cup joints the bottom of push rod (18).

6. The high efficiency needleless injector of claim 2, wherein: the bottom ends of the two third connecting rods (23) close to one side of the top block (22) are respectively fixedly connected with first bulges (5), and the bottom surface of the top block (22) abuts against the top surfaces of the two first bulges (5).

7. The high efficiency needleless injector of claim 5, wherein: the observation area comprises a second observation port (9) and a first observation port (6) which are arranged on the side wall of the injector body (1), the second observation port (9) is arranged corresponding to the top of the power storage screw rod (13), a plurality of labels are vertically arranged on the surface of the push rod (18), the first observation port (6) is arranged corresponding to one of the labels, and a convex lens (24) is arranged in the first observation port (6).