CN109718430B - Disposable safety insulin syringe needle - Google Patents
Disposable safety insulin syringe needle Download PDFInfo
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- CN109718430B CN109718430B CN201910164681.8A CN201910164681A CN109718430B CN 109718430 B CN109718430 B CN 109718430B CN 201910164681 A CN201910164681 A CN 201910164681A CN 109718430 B CN109718430 B CN 109718430B
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Abstract
Disposable safe type insulin syringe needle, including the barrel, the barrel front end is provided with the ejection switch that can press, the barrel middle part is provided with the ejection syringe needle that can pop out, it is provided with the power cardboard to launch the syringe needle rear, hold power cardboard front end card in launch the syringe needle side, it is connected with the stock solution section of thick bamboo to hold power cardboard rear end, the stock solution section of thick bamboo front end is provided with out the liquid switch, the stock solution section of thick bamboo rear end is provided with out the liquid piston, it is connected with the injection push rod to go out liquid piston rear end, injection push rod rear end is connected with out the liquid and turns the post, it turns the post to go out the liquid and is connected with out the liquid knob through the gear rack pair. Aiming at the defects of the prior art, the invention effectively solves the problems of easy puncture, non-disposable use and difficult operation existing in the prior insulin injection.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a disposable safety insulin injection needle.
Background
The injection of insulin for diabetics is performed by the patients themselves. However, the conventional disposable insulin needle is easy to cause needle stick injury: when the needle cap is buckled back, many elderly patients are easy to prick due to the small needle cap. Clinical strict requirements require that the needle can only be used once and need to be changed, but the compliance of patients is poor, and the needle can be frequently used for multiple times. In addition, insulin injection is difficult, and many patients do not operate the insulin injection and do not know how to inject insulin.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the disposable safety insulin injection needle, and effectively solves the problems of easy puncture, non-disposable use and difficult operation existing in the current insulin injection.
In order to solve the problems, the invention adopts the technical scheme that:
the disposable safety insulin injection needle comprises a barrel, wherein a push-down ejection switch is arranged at the front end of the barrel, an ejection needle capable of being ejected is arranged in the middle of the barrel, a force accumulation clamping plate is arranged behind the ejection needle, the front end of the force accumulation clamping plate is clamped at the side end of the ejection needle, the rear end of the force accumulation clamping plate is connected with a liquid storage barrel, a liquid outlet switch is arranged at the front end of the liquid storage barrel, a liquid outlet piston is arranged at the rear end of the liquid storage barrel, an injection push rod is connected at the rear end of the liquid outlet piston, a liquid outlet crank column is connected at the rear end of the injection push rod, and an injection knob is connected to the liquid outlet crank column through a gear-rack pair;
the cylinder body is a cylindrical pipe, two symmetrically arranged rectangular grooves are formed in the front end of the cylinder body backwards, and limiting grooves are formed in the left end and the right end of each rectangular groove; the ejection switch comprises a cylindrical pressing head, two limiting moment blocks are arranged on the outer circumference of the pressing head and are positioned in the rectangular grooves, the rear end of the pressing head is connected with two symmetrically distributed trigger plates, the middle parts of the rear ends of the trigger plates are provided with a differentiation groove forwards, and the rear ends of the trigger plates are provided with slopes; the outer sides of the front parts of the trigger plates are provided with limiting columns, and the limiting columns are located in the limiting grooves;
the middle part of the cylinder is uniformly provided with four sliding chutes backwards; the ejection needle head comprises a puncture needle tube, the rear end of the puncture needle tube is fixedly connected with a mounting seat, four sliding blocks which are uniformly distributed are arranged on the outer circumference of the mounting seat, and a force storage groove is formed in the outer circumference of the mounting seat backwards; the rear end of the mounting seat is fixedly connected with a spring, and the rear end of the mounting seat is also fixedly connected with a hose; the sliding block is positioned in the sliding groove, and the hose is fixedly connected with the liquid storage cylinder;
a placing hole is formed in the rear portion of the barrel body forwards, and the inner diameter of the placing hole is larger than that of the barrel body; the power storage clamping plate is positioned at the front end of the placing hole, a through hole is formed in the center of the power storage clamping plate, arc-shaped clamping grooves are formed in the upper portion and the lower portion of the end face of the power storage clamping plate, power storage clamping plates inclined towards the center are arranged on the left portion and the right portion of the power storage clamping plate, clamping heads are arranged on the inner sides of the top ends of the power storage clamping plates, and a spreading column is arranged on the lower portion of each clamping head; the clamping head is clamped on the force storage groove.
Preferably, the front end of the barrel is connected with a detachable safety cap, the rear end of the barrel is provided with an annular mounting head, the mounting head is connected with a control cap, the side end of the control cap is connected with an L-shaped protective cover, and the protective cover is positioned above the liquid outlet turning column.
Preferably, two arc-shaped fixing plates which are symmetrically distributed are arranged at the front end of the liquid storage cylinder, a plug is arranged outwards at the front end of each fixing plate, a fixing groove is formed below each plug, and the fixing plates are located in the clamping grooves; a liquid outlet head is arranged at the center of the front end of the liquid storage cylinder, a spherical hole is formed in the center of the liquid outlet head, a rotatable rotating bead is arranged in the spherical hole, a liquid outlet hole is formed in the center of the rotating bead, and a control shaft is connected to the rotating bead; an extending hole is further formed in the circumference of the cylinder body, and the control shaft extends out of the extending hole and is fixedly connected with the liquid outlet switch.
Preferably, the liquid outlet turning column main body is an L-shaped turning column, the front end of the liquid outlet turning column is fixedly connected with a liquid outlet rack, the outer circumference of the cylinder body is fixedly connected with a sliding seat, and the rear end of the liquid outlet turning column is positioned in the sliding seat; the liquid outlet rack is connected with a liquid outlet gear in a meshed mode, the liquid outlet gear is fixedly connected with a liquid outlet rotating shaft, the liquid outlet rotating shaft is fixed to the outer circumference of the barrel through a bearing and a bearing seat, and the tail end of the liquid outlet rotating shaft is fixedly connected with the injection knob.
The invention has novel structure, ingenious conception and simple and convenient operation, and compared with the prior art, the invention has the following advantages:
1. when the puncture needle is not used, the puncture needle tube is positioned in the cylinder body, so that the occurrence of needle stick injury is reduced.
2. Because the internal dosage specification of the device is fixed, the device is invalid after use, so that the device can be used by a patient strictly and forcibly only once, the drug absorption is enhanced, and the pain is reduced.
3. Because of the mandatory disposable needle head, the needle cap does not need to be buckled back, thereby reducing unnecessary needle stick injuries.
4. The needle can be injected under the skin quickly due to the elastic action, the flow is simple, and the needle can be operated by people.
Drawings
Fig. 1 is an isometric view of a disposable safety insulin injection needle of the present invention.
Fig. 2 is a partially exploded view of the disposable safety type insulin injection needle of the present invention.
FIG. 3 is a first isometric view, partially in section, of the barrel of the disposable safety insulin injection needle of the present invention and its internal components.
FIG. 4 is a second isometric view, partially in section, of the barrel of the disposable safety insulin injection needle and its internal components of the present invention.
FIG. 5 is an isometric view, partially in section, of the barrel of the disposable safety insulin injection needle of the present invention.
Fig. 6 is an isometric view of the ejection needle and its connecting parts of the disposable safety type insulin injection needle of the present invention.
Fig. 7 is an isometric view of the ejection switch of the disposable safety insulin injection needle of the present invention.
Fig. 8 is an isometric view of the ejection needle of the disposable safety insulin injection needle of the present invention.
FIG. 9 is an isometric view of the power card of the disposable safety insulin injection needle of the present invention.
FIG. 10 is an isometric view, partially in section, of a reservoir of the disposable safety insulin injection needle of the present invention.
Fig. 11 is an isometric view of the outlet crutch of the disposable safety insulin injection needle of the present invention.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 11, the invention provides a disposable safety insulin injection needle, which comprises a barrel body 1, wherein a push-button ejection switch 6 is arranged at the front end of the barrel body 1, an ejection needle 8 capable of ejecting is arranged in the middle of the barrel body 1, a force storage clamping plate 10 is arranged behind the ejection needle 8, the front end of the force storage clamping plate 10 is clamped at the side end of the ejection needle 8, the rear end of the force storage clamping plate 10 is connected with a liquid storage barrel 11, a liquid outlet switch 4 is arranged at the front end of the liquid storage barrel 11, a liquid outlet piston 46 is arranged at the rear end of the liquid storage barrel 11, an injection push rod 12 is connected at the rear end of the liquid outlet piston 46, a liquid outlet crutch 7 is connected at the rear end of the injection push rod 12, and the liquid outlet crutch 7 is connected with an injection knob 5 through a gear-rack pair.
The barrel 1 is used for providing a launching track for the ejection needle 8 and providing a storage space for the liquid storage barrel 11. The power storage clamping plate 10 is used for clamping the ejection needle 8, and the ejection switch 6 is pressed to release the clamping of the ejection needle 8 so as to eject the ejection needle. The reservoir 11 is used for storing insulin medicament. The liquid outlet piston 46 pushes out the medicine in the liquid storage barrel 11 through the injection push rod 12 and the liquid outlet crank column 7. The liquid outlet switch 4 is used for opening and closing the front end of the liquid storage barrel 11.
The front end of the barrel body 1 is connected with a detachable safety cap 2, the rear end of the barrel body 1 is provided with an annular mounting head 22, the mounting head 22 is connected with a control cap 3, the side end of the control cap 3 is connected with an L-shaped protective cover, and the protective cover is positioned above the liquid outlet turning column 7.
The safety cap 2 is connected with the front end of the barrel 1 through threads, and the safety cap 2 is used for protecting the ejection switch 6 from being touched. The control cap 3 is used for protecting the liquid outlet crutch 7 and the injection push rod 12 from being touched, and preventing misoperation.
The main body of the barrel body 1 is a cylindrical pipe, two symmetrically arranged rectangular grooves 19 are formed in the front end and the rear end of the barrel body 1, and limiting grooves 17 are formed in the left end and the right end of each rectangular groove 19; the ejection switch 6 comprises a cylindrical pressing head 23, two limit moment blocks 28 are arranged on the outer circumference of the pressing head 23, the limit moment blocks 28 are positioned in the rectangular groove 19, the rear end of the pressing head 23 is connected with two trigger plates 24 which are symmetrically distributed, the middle parts of the rear ends of the trigger plates 24 are provided with differentiation grooves 25 forwards, and the rear ends of the trigger plates 24 are provided with slopes 26; the front outer side of the trigger plate 24 is provided with a limiting column 27, and the limiting column 27 is located in the limiting groove 17.
The rectangular groove 19 is used for providing a fixed sliding track for the ejection switch 6, and the limiting groove 17 is used for preventing the ejection switch 6 from falling off. The operating principle of the ejection needle 8 is as follows: by pressing the pressing head 23, the slope 26 at the bottom end of the bottom trigger plate 24 pushes the expanding column 36 arranged on the power storage card 10 to move outwards, so that the chuck 37 is separated from the power storage groove. The ejection needle 8 is ejected under the action of the spring 9.
Four sliding grooves 18 are uniformly formed in the middle of the barrel 1 backwards; the ejection needle 8 comprises a puncture needle tube 29, the rear end of the puncture needle tube 29 is fixedly connected with an installation seat 30, four sliding blocks 31 which are uniformly distributed are arranged on the outer circumference of the installation seat 30, and a force storage groove is formed in the outer circumference of the installation seat 30 backwards; the rear end of the mounting seat 30 is fixedly connected with a spring 9, and the rear end of the mounting seat 30 is also fixedly connected with a hose 32; the sliding block 31 is positioned in the sliding groove 18, and the hose 32 is fixedly connected with the liquid storage barrel 11.
The chute 18 serves to provide a sliding track for the ejection needle, and the puncture needle tube 29 serves to puncture the skin of the patient and to inject the liquid medicine into the subcutaneous space of the patient through the connection from the hose 32. The power storage groove is used for matching with the chuck 37 to complete the positioning of the ejection needle 8. By pressing the ejection needle 8, the spring 9 is compressed, storing elastic potential energy for firing.
A placing hole 20 is formed in the rear part of the barrel body 1 in the front direction, and the inner diameter of the placing hole 20 is larger than that of the barrel body 1; the power storage clamping plate 10 is located at the front end of the placing hole 20, a through hole 35 is formed in the center of the power storage clamping plate 10, arc-shaped clamping grooves 33 are formed in the upper portion and the lower portion of the end face of the power storage clamping plate 10, power storage clamping plates 34 inclined towards the center are arranged on the left portion and the right portion of the power storage clamping plate 10, clamping heads 37 are arranged on the inner sides of the top ends of the power storage clamping plates 34, and opening columns 36 are arranged on the lower portions of the clamping heads 37; the retaining clip 37 engages on the power storage groove.
The placing hole 20 is in interference fit with the liquid storage barrel 11, the power storage clamping plate 10 positions the ejection needle 8 through the power storage card 34 arranged at the front end, and the power storage card 34 is of an inclined structure, so that the power storage card has elasticity, and the clamping head 37 at the front end of the power storage card 34 can be separated from the power storage groove under the action of the ejection switch 6.
The front end of the liquid storage cylinder 11 is provided with two arc-shaped fixing plates 38 which are symmetrically distributed, the front end of each fixing plate 38 is provided with a plug 40 outwards, a fixing groove 39 is arranged below each plug 40, and each fixing plate 38 is positioned in the corresponding clamping groove 33; a liquid outlet head 44 is arranged at the center of the front end of the liquid storage cylinder 11, a spherical hole is formed in the center of the liquid outlet head 44, a rotatable rotating bead 42 is arranged in the spherical hole, a liquid outlet hole 43 is formed in the center of the rotating bead 42, and a control shaft 41 is further connected to the rotating bead 42; an extending hole 16 is further formed in the circumference of the cylinder 1, and the control shaft 41 extends out of the extending hole 16 and is fixedly connected with the liquid outlet switch 4.
The liquid storage cylinder 11 is fixedly connected with the power storage clamping plate 10 through a fixing plate 38 at the front end. The spherical rotating ball 42 arranged in the liquid outlet head 44 can control the liquid outlet and the closing of the liquid storage barrel 11 through rotation, and the axes of the liquid outlet switch 4 and the liquid outlet hole 43 are parallel, so that the screwing condition can be observed by a patient conveniently.
The main body of the liquid outlet turning column 7 is an L-shaped turning column, the front end of the liquid outlet turning column 7 is fixedly connected with a liquid outlet rack 45, the outer circumference of the barrel 1 is fixedly connected with a sliding seat 15, and the rear end of the liquid outlet turning column 7 is positioned in the sliding seat 15; the liquid outlet rack 45 is connected with a liquid outlet gear 14 in a meshed mode, the liquid outlet gear 14 is fixedly connected with a liquid outlet rotating shaft 13, the liquid outlet rotating shaft 13 is fixed to the outer circumference of the barrel 1 through a bearing and a bearing seat, and the tail end of the liquid outlet rotating shaft 13 is fixedly connected with the injection knob 5.
The injection knob 5 is provided with scales, and the liquid outlet amount can be determined according to the rotating angle. The injection knob 5 is first turned before use so that the air therein is expelled. The liquid outlet principle is as follows: by the rotation of the injection knob 5, the liquid outlet gear 14 can drive the liquid outlet rack 45 to move, the liquid outlet rack 45 drives the liquid outlet crank column 7 to move forwards, the liquid outlet crank column 7 drives the injection push rod 12 to move forwards, and the liquid outlet piston 46 pushes out the liquid medicine in the liquid storage cylinder 11.
When the device is used, the liquid outlet switch 4 is firstly screwed off, then the injection knob 5 is rotated to discharge air in the puncture needle tube 29, then the ejection switch 6 at the front end of the device is pressed on a region to be injected of a patient, after the ejection needle head 8 is pressed forcibly, the ejection needle head can be ejected under the action of the spring 8 and pricks the subcutaneous part of the patient, and the liquid medicine is slowly pushed into the subcutaneous part of the patient according to the indication number on the injection knob 5 by rotating the injection knob 5.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the barrel 1, the safety cap 2, the control cap 3, the liquid outlet switch 4, the injection knob 5, the ejection switch 6, the liquid outlet crank 7, the ejection needle 8, the spring 9, the power storage clamping plate 10, the liquid storage barrel 11, the injection push rod 12, the liquid outlet rotating shaft 13, the liquid outlet gear 14, the sliding seat 15, the extending hole 16, the limiting groove 17, the sliding groove 18, the rectangular groove 19, the placing hole 20, the baffle ring 21, the mounting head 22 and the pressing head 23 are used more frequently, trigger plate 24, differentiation groove 25, slope 26, limiting column 27, limiting block 28, puncture needle tube 29, mounting seat 30, slide block 31, hose 32, clamping groove 33, force storage card 34, passing hole 35, expanding column 36, clamping head 37, fixing plate 38, fixing groove 39, plug 40, control shaft 41, rotary bead 42, liquid outlet hole 43, liquid outlet head 44, liquid outlet rack 45, liquid outlet piston 46 and other terms, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (4)
1. Disposable safety insulin syringe needle, its characterized in that: the ejection device comprises a barrel body (1), wherein a depressible ejection switch (6) is arranged at the front end of the barrel body (1), an ejection needle (8) capable of being ejected is arranged in the middle of the barrel body (1), a force storage clamping plate (10) is arranged behind the ejection needle (8), the front end of the force storage clamping plate (10) is clamped at the side end of the ejection needle (8), the rear end of the force storage clamping plate (10) is connected with a liquid storage barrel (11), a liquid outlet switch (4) is arranged at the front end of the liquid storage barrel (11), a liquid outlet piston (46) is arranged at the rear end of the liquid storage barrel (11), an injection push rod (12) is connected at the rear end of the liquid outlet piston (46), a liquid outlet crutch column (7) is connected at the rear end of the injection push rod (12), and the liquid outlet crutch column (7) is connected with an injection knob (5) through a gear-rack pair;
the main body of the barrel body (1) is a cylindrical pipe, two symmetrically arranged rectangular grooves (19) are formed in the front end of the barrel body (1) backwards, and limiting grooves (17) are formed in the left end and the right end of each rectangular groove (19); the ejection switch (6) comprises a cylindrical pressing head (23), two limiting moment blocks (28) are arranged on the outer circumference of the pressing head (23), the limiting moment blocks (28) are located in the rectangular groove (19), the rear end of the pressing head (23) is connected with two trigger plates (24) which are symmetrically distributed, the middle parts of the rear ends of the trigger plates (24) are provided with differentiation grooves (25) forwards, and the rear ends of the trigger plates (24) are provided with slopes (26); limiting columns (27) are arranged on the outer sides of the front parts of the trigger plates (24), and the limiting columns (27) are located in the limiting grooves (17);
four sliding grooves (18) are uniformly formed backwards in the middle of the barrel body (1); the ejection needle head (8) comprises a puncture needle tube (29), the rear end of the puncture needle tube (29) is fixedly connected with an installation seat (30), four sliding blocks (31) which are uniformly distributed are arranged on the outer circumference of the installation seat (30), and a force storage groove is formed in the outer circumference of the installation seat (30) backwards; the rear end of the mounting seat (30) is fixedly connected with a spring (9), and the rear end of the mounting seat (30) is also fixedly connected with a hose (32); the sliding block (31) is positioned in the sliding groove (18), and the hose (32) is fixedly connected with the liquid storage cylinder (11);
a placing hole (20) is formed in the rear portion of the barrel body (1) in the front direction, and the inner diameter of the placing hole (20) is larger than that of the barrel body (1); the power storage clamping plate (10) is located at the front end of the placing hole (20), a through hole (35) is formed in the center of the power storage clamping plate (10), arc-shaped clamping grooves (33) are formed in the upper portion and the lower portion of the end face of the power storage clamping plate (10), power storage clamping plates (34) inclined to the center are arranged on the left portion and the right portion of the power storage clamping plate (10), clamping heads (37) are arranged on the inner sides of the top ends of the power storage clamping plates (34), and opening columns (36) are arranged on the lower portions of the clamping heads (37); the clamping head (37) is clamped on the power storage groove.
2. The disposable safety insulin injection needle according to claim 1, wherein: the liquid outlet crutch is characterized in that the front end of the barrel body (1) is connected with a detachable safety cap (2), the rear end of the barrel body (1) is provided with an annular mounting head (22), the mounting head (22) is connected with a control cap (3), the side end of the control cap (3) is connected with an L-shaped protective cover, and the protective cover is located above the liquid outlet crutch (7).
3. The disposable safety insulin injection needle according to claim 1, wherein: the front end of the liquid storage cylinder (11) is provided with two arc-shaped fixing plates (38) which are symmetrically distributed, the front end of each fixing plate (38) is provided with a plug (40) outwards, a fixing groove (39) is arranged below each plug (40), and each fixing plate (38) is positioned in the corresponding clamping groove (33); a liquid outlet head (44) is arranged at the center of the front end of the liquid storage cylinder (11), a spherical hole is formed in the center of the liquid outlet head (44), a rotatable rotating bead (42) is arranged in the spherical hole, a liquid outlet hole (43) is formed in the center of the rotating bead (42), and a control shaft (41) is connected to the rotating bead (42); the cylinder body (1) is also provided with an extending hole (16) on the circumference, and the control shaft (41) extends out of the extending hole (16) and is fixedly connected with the liquid outlet switch (4).
4. The disposable safety insulin injection needle according to claim 1, wherein: the main body of the liquid outlet turning column (7) is an L-shaped turning column, the front end of the liquid outlet turning column (7) is fixedly connected with a liquid outlet rack (45), the outer circumference of the barrel (1) is fixedly connected with a sliding seat (15), and the rear end of the liquid outlet turning column (7) is positioned in the sliding seat (15); the liquid outlet rack (45) is connected with a liquid outlet gear (14) in a meshed mode, the liquid outlet gear (14) is fixedly connected with a liquid outlet rotating shaft (13), the liquid outlet rotating shaft (13) is fixed to the outer circumference of the barrel body (1) through a bearing and a bearing seat, and the tail end of the liquid outlet rotating shaft (13) is fixedly connected with the injection knob (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164681.8A CN109718430B (en) | 2019-03-05 | 2019-03-05 | Disposable safety insulin syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164681.8A CN109718430B (en) | 2019-03-05 | 2019-03-05 | Disposable safety insulin syringe needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109718430A CN109718430A (en) | 2019-05-07 |
| CN109718430B true CN109718430B (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910164681.8A Active CN109718430B (en) | 2019-03-05 | 2019-03-05 | Disposable safety insulin syringe needle |
Country Status (1)
| Country | Link |
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| CN (1) | CN109718430B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115300724B (en) * | 2022-02-10 | 2024-01-12 | 山东中医药大学附属医院 | Autonomous treatment insulin injection device for diabetics |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109718430A (en) | 2019-05-07 |
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