CN113908379B - Epinephrine injection pen - Google Patents
Epinephrine injection pen Download PDFInfo
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- CN113908379B CN113908379B CN202110984768.7A CN202110984768A CN113908379B CN 113908379 B CN113908379 B CN 113908379B CN 202110984768 A CN202110984768 A CN 202110984768A CN 113908379 B CN113908379 B CN 113908379B
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- medicine
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- holding
- head
- needle part
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2006—Piercing means
- A61J1/201—Piercing means having one piercing end
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2048—Connecting means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2096—Combination of a vial and a syringe for transferring or mixing their contents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
- A61M5/3297—Needles arranged coaxially
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M2005/2006—Having specific accessories
- A61M2005/202—Having specific accessories cocking means, e.g. to bias the main drive spring of an injector
Abstract
The application discloses an epinephrine injection pen, which comprises a medicine tank structure, a holding connector and a double-ended needle part which are connected in a split mode, wherein the upper end and the lower end of the holding connector are respectively provided with a thread groove which is connected with the medicine tank structure and the double-ended needle part through threads, the inside of the medicine tank structure is used for assisting in storing and pressurizing medicine liquid, the double-ended needle part is matched with the holding connector to generate displacement to puncture the inside of the medicine tank structure, the medicine liquid stored in the medicine tank structure is discharged through the double-ended needle part, and medicine storage tools for storing various different medicine liquids can be quickly detached and replaced through the structure that the medicine storage tools and the needle part are arranged in a split mode, so that different first-aid effects are achieved, and the double-ended needle part can be detached, so that the cost of replacing the whole pen after pollution is saved, and the cost of purchasing again by consumers is greatly saved because the medicine tank and the needle part are not interfered with each other.
Description
Technical Field
The application relates to the technical field of medical treatment, in particular to an epinephrine injection pen.
Background
Epinephrine is an antishock vasoactive drug, is the first drug for rescuing patients with shock, can quickly relieve clinical symptoms of overshock, saves lives of patients, and is also used for various allergic reactions such as type I allergic reactions caused by foods, drugs, pollen, dust, insect bites and the like.
Epinephrine is widely applied to various clinical rescue, and is usually injected by a special epinephrine injector, which is mainly used for shortening the administration time as much as possible and injecting in time, but the epinephrine injector is generally of an integrated structure and is mainly used for epinephrine injection, the application range is single, and the emergency requirement of different emergency injections cannot be realized;
in addition, the traditional medicine storage device of the epinephrine injector is a soft bag made of rubber, the service life is short, the medicine potency of the epinephrine aqueous solution can be influenced to a certain extent, and the effectiveness of the product can be influenced due to the fact that no auxiliary medicine storage kit is arranged.
Disclosure of Invention
The application aims to provide an epinephrine injection pen, which solves the technical problem that the traditional epinephrine injector in the prior art cannot realize the emergency requirement of different emergency injections.
In order to solve the technical problems, the application specifically provides the following technical scheme:
the utility model provides an epinephrine injection pen, includes medicine jar structure, the connector of holding and the double-end needle portion of adopting split type connection, the screw thread groove has been seted up respectively to the upper and lower end of holding the connector be used for connecting medicine jar structure with double-end needle portion, the inside of medicine jar structure is used for supplementary storage liquid medicine and its pressure boost, double-end needle portion through with the connector cooperation of holding produces displacement puncture extremely the inside of medicine jar structure, and the liquid medicine that medicine jar structure inside was stored is through the pressure boost certainly double-end needle portion discharges.
As a preferred scheme of the application, the holding connector comprises a holding outer cylinder, a holding connecting sleeve and a head protecting cap, wherein the holding connecting sleeve is connected with a thread groove at the bottom end of the holding outer cylinder, and the head protecting cap is movably arranged at the central part of the holding connecting sleeve and slides along the inner side of the holding outer cylinder;
the medicine tank structure comprises a medicine tank sleeve connected with a thread groove at the upper end of the holding outer cylinder, a hard medicine pipe which is integrally formed and used for storing medicine liquid is arranged at the center position of the inner side of the medicine tank sleeve, a medicine tank sealing film for sealing the bottom end opening of the hard medicine pipe is arranged at the center position of the inner side of the medicine tank sleeve, and a medicine pipe pressurizing mechanism for sealing the top end opening of the hard medicine pipe and automatically pressurizing the medicine liquid in the hard medicine pipe is arranged at the top end of the hard medicine pipe.
As a preferable scheme of the application, the medicine tube pressurizing mechanism comprises a cap fixedly connected with the medicine pot sleeve and the top end of the hard medicine tube and a medicine tube piston which slides up and down along the inner side of the hard medicine tube and seals medicine liquid, and an elastically supported medicine pushing spring is arranged between the cap and the medicine tube piston and is connected with the medicine tube piston to slide to the bottom end of the hard medicine tube through complete release elasticity.
As a preferable mode of the application, the head protection cap comprises a head protection shell and a sterile protection film, wherein the outer edge part of the top end of the head protection shell is abutted against the holding connecting sleeve at the inner side of the holding outer cylinder, the center position of the bottom end of the head protection shell is provided with a through hole for the double-head needle part to pass through, the sterile protection film is used for covering the bottom end through hole of the head protection shell, and the sterile protection film is made of a rubber film material.
As a preferable scheme of the application, the double-ended needle part comprises an upper needle head, a double-ended needle part connection, a resistance spring and a lower needle head, wherein the resistance spring is fixedly connected with the top end of the head protection shell and the inner wall of a thread groove at the bottom end of the holding outer cylinder respectively, and the resistance spring is connected with the outer edge of the head protection shell in a propping way with the holding connecting sleeve through release elasticity;
the double-ended needle part is fixedly connected to the inner side center part of the resistance spring, the upper needle is arranged at the top end of the double-ended needle part and used for puncturing the medicine can sealing film, the lower needle is arranged at the bottom end of the double-ended needle part and used for puncturing the sterile protection film, and the lower needle is communicated with the upper needle.
As a preferable scheme of the application, the medicine can sealing film is made of composite aluminum metal film material, and the strength of the medicine can sealing film for sealing the opening at the bottom end of the hard medicine tube is higher than the pressure of the medicine liquid in the hard medicine tube.
As a preferable scheme of the application, a functional filler is filled between the medicine pot sleeve and the hard medicine tube, the functional filler at least comprises heat insulation cotton and damping cotton, the heat insulation cotton is used for insulating heat by encircling and attaching to the outer side of the hard medicine tube, and the damping cotton is used for filling the outer side of the heat insulation cotton and is used for damping.
Compared with the prior art, the application has the following beneficial effects:
(1) The medicine storage tool and the needle part are in a separated installation structure, so that the medicine storage tool for storing a plurality of different liquid medicines can be quickly detached and replaced, different first-aid effects are realized, the cost of replacing the whole pen after being polluted is saved due to the fact that the medicine tank and the needle part are not interfered with each other, and the cost of re-purchasing by consumers is greatly saved;
(2) The medicine storage tool pushed by the hard pipeline matched with the piston replaces the traditional rubber bag pipe, so that the reliability is higher, medicines can be better stored, an auxiliary medicine storage kit can be additionally arranged, and the stability of the medicines is kept.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic diagram of the whole embodiment of the present application.
Reference numerals in the drawings are respectively as follows:
1-a medicine tank structure; 2-grip the connector; 3-double-ended needle portion;
101-a medicine pot sleeve; 102-a hard medicine tube; 103-sealing the medicine pot; 104-a medicine tube pressurizing mechanism;
1041-caps; 1042-a cartridge piston; 1043-a push spring;
201-holding an outer cylinder; 202-holding the connecting sleeve; 203-a head protective cap;
2031-a protective head housing; 2032-a sterile protective film;
301-upper needle; 302-double-ended needle connection; 303-resistance spring; 304-needle down.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1, the application provides an epinephrine injection pen, which comprises a medicine tank structure 1, a holding connector 2 and a double-ended needle part 3 which are connected in a split mode, wherein the upper end and the lower end of the holding connector 2 are respectively provided with a thread groove for connecting the medicine tank structure 1 and the double-ended needle part 3, the inside of the medicine tank structure 1 is used for assisting in storing medicine liquid and pressurizing the medicine liquid, the double-ended needle part 3 is matched with the holding connector 2 to generate displacement to puncture the inside of the medicine tank structure 1, and the medicine liquid stored in the medicine tank structure 1 is discharged from the double-ended needle part 3 through pressurizing.
The holding connector 2 comprises a holding outer barrel 201, a holding connecting sleeve 202 and a head protecting cap 203, wherein the holding connecting sleeve 202 is connected with a thread groove at the bottom end of the holding outer barrel 201, and the head protecting cap 203 is movably arranged at the central part of the holding connecting sleeve 202 and slides along the inner side of the holding outer barrel 201;
the medicine tank structure 1 comprises a medicine tank sleeve 101 connected with a thread groove at the upper end of a holding outer barrel 201, a hard medicine pipe 102 which is integrally formed and used for storing medicine liquid is arranged at the center position of the inner side of the medicine tank sleeve 101, a medicine tank sealing film 103 for sealing the bottom end opening of the hard medicine pipe 102 is arranged at the center position of the inner side of the medicine tank sleeve 101, and a medicine pipe pressurizing mechanism 104 for sealing the top end opening of the hard medicine pipe 102 and automatically pressurizing the medicine liquid in the hard medicine pipe is arranged at the top end of the hard medicine pipe 102.
The medicine tube pressurizing mechanism 104 comprises a cap 1041 fixedly connected with the medicine pot sleeve 101 and the top end of the hard medicine tube 102, and a medicine tube piston 1042 which slides up and down along the inner side of the hard medicine tube 102 and seals the medicine liquid, an elastically supported medicine pushing spring 1043 is arranged between the cap 1041 and the medicine tube piston 1042, and the medicine pushing spring 1043 slides to the bottom end of the hard medicine tube 102 through the completely released elasticity together with the medicine tube piston 1042.
The head protection cap 203 includes a head protection shell 2031 and a sterile protection film 2032, the outer edge portion of the top end of the head protection shell 2031 abuts against the holding connection sleeve 202 inside the holding outer cylinder 201, the center position of the bottom end of the head protection shell 2031 is provided with a through hole for the double-ended needle portion 3 to pass through, the sterile protection film 2032 is used for covering the bottom end through hole of the head protection shell 2031, and the sterile protection film 2032 is made of a rubber film material.
The double-ended needle part 3 comprises an upper needle head 301, a double-ended needle part connection 302, a resistance spring 303 and a lower needle head 304, wherein the resistance spring 303 is fixedly connected with the top end of a head protecting shell 2031 and the inner wall of a thread groove at the bottom end of the holding outer cylinder 201 respectively, and the resistance spring 303 is connected with the outer edge of the head protecting shell 2031 by releasing elastic force to be abutted against the holding connecting sleeve 202;
the double-ended needle portion connection 302 is fixedly arranged at the inner side central part of the resistance spring 303, the upper needle 301 is arranged at the top end of the double-ended needle portion connection 302 and used for puncturing the medicine can sealing film 103, the lower needle 304 is arranged at the bottom end of the double-ended needle portion connection 302 and used for puncturing the sterile protection film 2032, and the lower needle 304 is communicated with the upper needle 301.
The medicine can sealing film 103 is made of composite aluminum metal film materials, and the strength of the opening of the bottom end of the medicine can sealing film 103 for sealing the hard medicine tube 102 is higher than the pressure of the medicine liquid in the hard medicine tube 102.
The medicine pot sleeve 101 and the hard medicine tube 102 are filled with functional fillers, the functional fillers at least comprise heat insulation cotton and damping cotton, the heat insulation cotton is used for insulating heat by encircling and attaching to the outer side of the hard medicine tube 102, and the damping cotton is used for being filled in the outer side of the heat insulation cotton and used for damping.
Before use, the medicine tank structure 1 for storing corresponding medicine liquid is selected according to the requirement, and is placed into the thread groove at the top end of the holding connector 2, the medicine pushing spring 1043 of the medicine tube pressurizing mechanism 104 releases elasticity, the medicine tube piston 1042 is pushed to slide downwards along the hard medicine tube 102, the medicine liquid stored in the hard medicine tube 102 is pressurized by the medicine tube piston 1042 sliding downwards elastically, therefore, after the medicine tank sealing film 103 is punctured, the medicine pushing spring 1043 between the cap 1041 and the medicine tube piston 1042 is released continuously, the medicine tube piston 1042 is continuously pushed down along the inside of the hard medicine tube 102 until the medicine tube piston is abutted with the bottom end of the hard medicine tube 102, and at the moment, the medicine liquid stored in the hard medicine tube 102 is discharged completely.
After the corresponding medicine can structure 1 is selected, the medicine can sleeve 101 is screwed into the thread groove at the upper end of the holding outer barrel 201 of the holding connector 2, so that the medicine can structure 1, the holding connector 2 and the double-ended needle part 3 form an integral structure, and when the medicine can structure is used, the upper needle 301 connected with the top end of the double-ended needle part 302 is extended to the inside of the hard medicine tube 102 by pushing the head protection cap 203 of the holding connector 2 into the holding connecting sleeve 202, in the process, the bottom end of the double-ended needle part connection 302 which is arranged in the inside of the resistance spring 303 and keeps in a suspended state approaches the head protection cap 2031, the top end of the double-ended needle part connection 302 approaches the direction of the medicine can structure 1, when the bottom end of the double-ended needle part connection 302 is contacted with the top end of the head protection cap 2031, the lower needle 304 connected with the bottom end of the double-ended needle part connection 302 is extended to the outer side of the head protection cap 203, and the upper needle 301 connected with the top end of the double-ended needle part connection 302 is extended to the inside of the hard medicine tube 102 along with the continuous movement of the head protection cap 2031 towards the inside of the holding connecting sleeve 202, at this moment, the upper needle 301 is extended to the inside of the hard medicine tube 102, and the needle head 304 can be discharged through the needle head 304.
According to the requirement of use, when other liquid medicine needs to be injected urgently, the connector 2 can be held by one hand, the lower needle 304 penetrating into the vein is kept not to be separated, the other hand applies torsion to the cap 1041 of the medicine tube pressurizing mechanism 104 until the injected medicine can structure 1 is taken out, the other medicine can structure 1 storing the corresponding liquid medicine is taken out and screwed into the top thread groove of the holding connector 2 again, in the process of complete screwing, the upward needle part of the double-headed needle part 3 pierces into the medicine can structure 1, and the liquid medicine is injected continuously through the double-headed needle part 3 automatically under the action of the medicine tube pressurizing mechanism 104 of the medicine can structure 1;
according to the application, the medicine storage tools and the needle parts are in a separated installation structure, so that a plurality of medicine storage tools which store medicine liquid can be quickly detached and replaced, different first-aid effects are realized, and the cost of replacing the whole pen after being polluted is saved due to the fact that the medicine tank and the needle parts are not interfered with each other, so that the cost of re-purchasing by consumers is greatly saved;
the medicine storage tool pushed by the hard pipeline matched with the piston replaces the traditional rubber bag pipe, so that the reliability is higher, medicines can be better stored, an auxiliary medicine storage kit can be additionally arranged, and the stability of the medicines is kept.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.
Claims (5)
1. The utility model provides an epinephrine injection pen, includes medicine jar structure (1), gripping connector (2) and double-end needle portion (3) that adopt split type connection, its characterized in that: the upper end and the lower end of the holding connector (2) are respectively provided with a thread groove for connecting the medicine tank structure (1) with the double-end needle part (3), the inside of the medicine tank structure (1) is used for assisting in storing medicine liquid and pressurizing, the double-end needle part (3) is matched with the holding connector (2) to generate displacement puncture to the inside of the medicine tank structure (1), and the medicine liquid stored in the inside of the medicine tank structure (1) is discharged from the double-end needle part (3) through pressurizing;
the holding connector (2) comprises a holding outer cylinder (201), a holding connecting sleeve (202) and a head protecting cap (203), wherein the holding connecting sleeve (202) is connected with a thread groove at the bottom end of the holding outer cylinder (201), and the head protecting cap (203) is movably arranged at the central part of the holding connecting sleeve (202) and slides along the inner side of the holding outer cylinder (201);
the head protection cap (203) comprises a head protection shell (2031) and a sterile protection film (2032);
the medicine tank structure (1) comprises a medicine tank sleeve (101) connected with a thread groove at the upper end of the holding outer barrel (201), a hard medicine pipe (102) which is formed integrally and used for storing medicine liquid is arranged at the inner side center position of the medicine tank sleeve (101), a medicine tank sealing film (103) for sealing the bottom end opening of the hard medicine pipe (102) is arranged at the inner side center position of the medicine tank sleeve (101), and a medicine pipe pressurizing mechanism (104) for sealing the top end opening of the hard medicine pipe (102) and automatically pressurizing the medicine liquid in the hard medicine pipe is arranged at the top end of the hard medicine pipe;
the double-ended needle part (3) comprises an upper needle head (301), a double-ended needle part connection (302), a resistance spring (303) and a lower needle head (304), wherein the resistance spring (303) is fixedly connected with the top end of the head protection shell (2031) and the inner wall of a thread groove at the bottom end of the holding outer cylinder (201) respectively, and the resistance spring (303) is connected with the outer edge of the head protection shell (2031) in a propping way with the holding connecting sleeve (202) through release elasticity;
the double-ended needle part connection (302) is fixedly arranged at the center part of the inner side of the resistance spring (303), the upper needle head (301) is arranged at the top end of the double-ended needle part connection (302) and used for puncturing the medicine can sealing film (103), the lower needle head (304) is arranged at the bottom end of the double-ended needle part connection (302) and used for puncturing the sterile protection film (2032), and the lower needle head (304) is communicated with the upper needle head (301);
by pushing the head protection cap (203) of the holding connector (2) into the holding connecting sleeve (202), the top end of the head protection cap (2031) presses the resistance spring (303), in the process, the bottom end of the double-end needle part connection (302) which is arranged in the resistance spring (303) and keeps in a suspended state approaches the head protection cap (2031), and when the bottom end of the double-end needle part connection (302) is contacted with the top end of the head protection cap (2031), the lower needle head (304) connected with the bottom end of the double-end needle part connection (302) pierces the sterile protection film 2032 and extends to the outer side of the head protection cap (203).
2. An epinephrine injection pen according to claim 1, wherein: the medicine tube pressurizing mechanism (104) comprises a cap (1041) fixedly connected with the top end of the medicine pot sleeve (101) and the top end of the hard medicine tube (102), and a medicine tube piston (1042) which slides up and down along the inner side of the hard medicine tube (102) and seals medicine liquid, an elastically supported medicine pushing spring (1043) is arranged between the cap (1041) and the medicine tube piston (1042), and the medicine pushing spring (1043) is connected with the bottom end of the medicine tube piston (1042) in a sliding way to the hard medicine tube (102) through complete elastic release.
3. An epinephrine injection pen according to claim 1, wherein: the outer edge part of the top end of the head protecting shell (2031) is abutted to the holding connecting sleeve (202) at the inner side of the holding outer barrel (201), a through hole is formed in the center of the bottom end of the head protecting shell (2031) for the double-end needle part (3) to pass through, the sterile protecting film (2032) is used for covering the bottom end through hole of the head protecting shell (2031), and the sterile protecting film (2032) is made of a rubber film material.
4. An epinephrine injection pen according to claim 1, wherein: the medicine pot sealing film (103) is made of a composite aluminum metal film material, and the intensity of the opening at the bottom end of the hard medicine tube (102) sealed by the medicine pot sealing film (103) is larger than the pressure of the liquid medicine in the hard medicine tube (102).
5. An epinephrine injection pen according to claim 1, wherein: the medicine pot sleeve (101) and the hard medicine tube (102) are filled with functional fillers, each functional filler at least comprises heat insulation cotton and damping cotton, the heat insulation cotton is used for insulating heat by encircling and attaching to the outer side of the hard medicine tube (102), and the damping cotton is used for being filled in the outer side of the heat insulation cotton and used for damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110984768.7A CN113908379B (en) | 2021-08-24 | 2021-08-24 | Epinephrine injection pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110984768.7A CN113908379B (en) | 2021-08-24 | 2021-08-24 | Epinephrine injection pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113908379A CN113908379A (en) | 2022-01-11 |
| CN113908379B true CN113908379B (en) | 2023-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110984768.7A Active CN113908379B (en) | 2021-08-24 | 2021-08-24 | Epinephrine injection pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113908379B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219681463U (en) * | 2022-08-05 | 2023-09-15 | 王鹏 | Medicine pot with liquid outlet needle |
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| CN113908379A (en) | 2022-01-11 |
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