CN106492313B - Card type full-automatic injection pen - Google Patents
Card type full-automatic injection pen Download PDFInfo
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- CN106492313B CN106492313B CN201611226505.5A CN201611226505A CN106492313B CN 106492313 B CN106492313 B CN 106492313B CN 201611226505 A CN201611226505 A CN 201611226505A CN 106492313 B CN106492313 B CN 106492313B
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- shell
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- 238000002347 injection Methods 0.000 title claims abstract description 156
- 239000007924 injection Substances 0.000 title claims abstract description 156
- 239000003814 drug Substances 0.000 claims abstract description 124
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000010304 firing Methods 0.000 claims description 26
- 238000004146 energy storage Methods 0.000 claims description 21
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 14
- 241001330002 Bambuseae Species 0.000 claims description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 14
- 239000011425 bamboo Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 9
- 229940079593 drug Drugs 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000009527 percussion Methods 0.000 abstract description 17
- 230000009471 action Effects 0.000 abstract description 13
- 238000003780 insertion Methods 0.000 abstract description 9
- 230000037431 insertion Effects 0.000 abstract description 9
- 239000013589 supplement Substances 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000035772 mutation Effects 0.000 description 3
- 229930182555 Penicillin Natural products 0.000 description 2
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 229940049954 penicillin Drugs 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 230000004118 muscle contraction Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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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
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
-
- 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
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M2005/3152—Piston or piston-rod constructions, e.g. connection of piston with piston-rod including gearings to multiply or attenuate the piston displacing force
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
According to the card type full-automatic injection pen provided by the invention, the medicine bottle section outer shell is pulled by pressing the bottom sealing end of the triggering sleeve outer shell by hand, so that the medicine bottle section outer shell and the medicine bottle section inner shell connected with the first clamping part are separated, the needle inserting spring releases the compression force, and the triggering sleeve inner shell is in a triggering state. When the percussion cylinder is subjected to resistance of an injection position, the wedge surface pries the buckle to insert the needle to be excited. The trigger sleeve inner shell moves to the injection position rapidly, the trigger sleeve inner shell and the medicine bottle section inner shell which are connected by the second clamping portion are separated from each other, the injection spring pushes the push rod, and due to the vacuum action of the cavity between the push rod and the piston rod, the injection spring is decelerated under the action of negative pressure formed by the cavity pumping when the piston of the card bottle medicine needle mechanism is pushed forwards for injection. With the supplement of air in the gap between the cavity of the push rod and the piston rod, the damping force is gradually weakened, and the force released by the injection spring finally completes injection. The injection pen in the scheme can finally meet the requirements of quick needle insertion and slow injection during injection.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a card type full-automatic injection pen.
Background
At present, the injectors generally used in medical treatment at home and abroad comprise needle tubes, core bars, pistons and needles, the core bars need to be pressed continuously by hands to inject when in use, and generally, professional medical care personnel can only inject patients in person. The treatment procedure is complex, time-consuming and labor-consuming, and inconvenience is brought to patients and crowds who need first aid, self-rescue, self-treatment and carrying for standby. In addition, some full-automatic penicillin bottle injectors pre-filled with liquid medicine exist in the market, due to the complex structure, the injection operation links are more, if injection water is sucked in at first, then the injection water is injected into a powder injection bottle for mixing medicines, then the liquid medicine is sucked out and air is exhausted, the injection can be implemented, the operation cannot be easily mastered by general non-medical personnel, and the full-automatic penicillin bottle injectors are not suitable for emergency self-rescue or daily self-injection treatment. And the spring safety device is unreliable, liquid medicine is injected quickly during injection, so that muscle emergency contraction caused by pressure mutation is caused, and the emergency treatment effect is not ideal.
Therefore, the clamping type full-automatic injection pen needs to be provided, the requirements of fast needle insertion and slow injection during injection can be met, the emergency contraction of muscles caused by pressure mutation is improved, the medicine is smoothly pushed into the body, and the operation requirements of self rescue and mutual rescue in the first aid are met.
Disclosure of Invention
The invention provides a card type full-automatic injection pen, which can meet the requirements of quick needle insertion and slow injection during injection and meet the operation requirements of self rescue and mutual rescue as possible during first aid.
In order to solve the technical problem, the invention provides a clamping type full-automatic injection pen which comprises an energy storage triggering mechanism and a clamping type bottle medicine needle mechanism arranged in the energy storage triggering mechanism, wherein the energy storage triggering mechanism comprises a medicine bottle section inner shell, a medicine bottle section outer shell, a triggering sleeve inner shell, a triggering sleeve outer shell, a piston rod and a push rod; wherein,
the front half part of the inner shell of the medicine bottle section is sleeved and fixed on the medicine needle mechanism of the cassette bottle, and the rear half part is sleeved and fixed on the inner shell of the percussion sleeve;
the medicine bottle section outer shell is sleeved on the medicine bottle section inner shell and is connected with the medicine bottle section inner shell through a first clamping portion, and the medicine bottle section outer shell and the medicine bottle section inner shell can be separated from each other under the condition that the energy storage firing mechanism is extruded in the injection direction by the first clamping portion;
the triggering sleeve outer shell is connected with the medicine bottle section outer shell, the triggering sleeve inner shell is arranged in the triggering sleeve outer shell, the triggering sleeve inner shell is connected with the medicine bottle section inner shell through a second clamping part, and when the energy storage triggering mechanism is in a triggering state, the triggering sleeve inner shell can be separated from the medicine bottle section inner shell;
the piston rod is arranged at the bottom sealing end of the inner shell of the firing sleeve, one end of the push rod is clamped on the piston at the bottom end of the cartridge bottle medicine needle mechanism, the other end of the push rod is provided with a cavity sleeved on the piston rod, and the push rod can move relative to the piston rod;
trigger sleeve inner shell with be provided with between the trigger sleeve shell and be used for with the propulsive needle feed spring of trigger sleeve inner shell along injection direction, the fender shoulder of push rod with be provided with between the fender shoulder of piston rod and be used for with the propulsive injection spring of regulation injection speed of push rod along injection direction, the compressive force of needle feed spring drives trigger sleeve inner shell is advanced the needle fast, afterwards injection spring's compressive force receives again the damping force that vacuum cavity brought in the push rod, thereby slows down the injection speed that the push rod promoted, the requirement of advancing needle, injecting slowly when finally realizing the injection fast.
Preferably, in the above-mentioned cartridge type full-automatic injection pen, the cartridge type medicine needle mechanism includes a cartridge type medicine bottle and a needle head provided on the cartridge type medicine bottle, wherein the cartridge type medicine bottle is fixed inside the medicine bottle section inner case.
Preferably, in the above card type full-automatic injection pen, the card type full-automatic injection pen further comprises a pen cap protection mechanism, and the pen cap protection mechanism comprises a needle protection cap sleeved on the needle end of the card type medicine bottle.
Preferably, in above-mentioned card formula full-automatic injection pen, cap for brush protection mechanism still includes and is used for wrapping up the firing section of thick bamboo of syringe needle, the tip of firing section of thick bamboo with medicine bottle section of thick bamboo passes through third joint portion and is connected, the inboard spacing shoulder that is used for restricting card formula bottle medicine needle mechanism moves along injection position direction that still is provided with of firing section of thick bamboo.
Preferably, in the above card type full automatic injection pen, the card type full automatic injection pen further comprises a button mechanism; wherein, button mechanism establishes including the cover button sleeve, the setting in the medicine bottle section shell outside are in button sleeve with just be used for right between the medicine bottle section shell outside the button sleeve provides tensile retaining spring and is used for control to prevent the percussion section of thick bamboo with the safety pin of medicine bottle section shell separation.
Preferably, in the above-mentioned full-automatic injection pen of card formula, third joint portion is including setting up buckle on the percussion section of thick bamboo and setting up the draw-in groove on the medicine bottle section of thick bamboo shell, percussion section of thick bamboo tip still is provided with the front end spring.
Preferably, in the above-mentioned full-automatic injection pen of card formula, the percussion section of thick bamboo includes barrel, cover establish the barrel one end the cap for brush, set up in between the cap for brush and the barrel and one end is connected the trip spring of cap for brush.
Preferably, in the above card type full automatic injection pen, the pen cap is fastened to the needle protection cap.
Preferably, in the above card type full automatic injection pen, the medicine bottle section housing and the trigger sleeve housing are detachably and firmly connected.
Preferably, in the above-mentioned card type full-automatic injection pen, the medicine bottle section housing is provided with a reset assembly body at the position of the first card portion.
The invention provides a clamping type full-automatic injection pen which comprises an energy storage triggering mechanism, wherein the energy storage triggering mechanism comprises a medicine bottle section inner shell, a medicine bottle section outer shell, a triggering sleeve inner shell, a triggering sleeve outer shell, a push rod and a piston rod. In the injection operation process of both hands, especially one-hand, press the bottom seal end of percussion sleeve shell, spur medicine bottle section shell simultaneously, make medicine bottle section shell, the mutual separation of medicine bottle section inner shell that first joint portion connects, the compression state of needle entering spring releases rapidly, and percussion sleeve inner shell is in the percussion state, and percussion sleeve inner shell moves to the injection position rapidly together with driving card formula bottle medicine needle mechanism. When the needle inserting action is about to be completed, the triggering sleeve inner shell and the medicine bottle section inner shell which are connected with the second clamping portion are separated from each other, the compression state of the injection spring is released rapidly, the push rod is pushed to move to the injection position, and due to the vacuum action of the cavity between the push rod and the piston rod, the injection spring drives the push rod to push the piston of the medicine needle mechanism of the card bottle forwards for injection, and the push rod is decelerated under the action of negative pressure formed by the cavity in a drawing mode. Along with the supplement of the gap between the cavity of the push rod and the piston rod to the air in the cavity, the damping force is gradually weakened, and finally the force released by the injection spring pushes all the injection out of the cartridge bottle medicine needle mechanism. For the background art, the full-automatic injection pen of card formula that this scheme provided, the joint part separation of the first joint portion of injection pen, the compressive force of needle feeding spring drives the quick needle of inserting of percussion sleeve inner shell, the compressive force of injection spring receives the damping force that vacuum cavity brought in the push rod again afterwards to slow down the injection speed that the push rod promoted, the needle is inserted soon when finally realizing the injection, the requirement of slow injection, the most likely when having satisfied the first aid saves oneself, the operation demand of each other rescuing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a card-type full-automatic injection pen provided by the present invention;
figure 2 is a schematic diagram of the construction of the inner housing of a vial segment of the present invention.
In the figure: a medicine bottle section inner shell 110, a medicine bottle section outer shell 111, a reset assembly 113, a triggering sleeve inner shell 120, a triggering sleeve outer shell 121, a piston rod 122, a push rod 123, a needle inserting spring 131 and an injection spring 132; a cartridge bottle 201, a needle 202; a needle protection cap 301, a firing barrel 302, a front end spring 303, a pen cap 304 and a tripping spring 305; a retaining spring 401, a button sleeve 402, a shear pin 403.
Detailed Description
The core of the invention is to provide a card type full-automatic injection pen, which can realize the requirements of fast needle insertion and slow injection during injection and meet the operation requirements of maximum possible self-rescue and mutual rescue during emergency treatment.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the full-automatic card injection pen provided by the present invention includes an energy storage trigger mechanism and a card bottle medicine needle mechanism disposed inside the energy storage trigger mechanism, wherein the energy storage trigger mechanism includes a medicine bottle section inner shell 110, a medicine bottle section outer shell 111, a trigger sleeve inner shell 120, a trigger sleeve outer shell 121, a piston rod 122 and a push rod 123. The front half part of the inner housing 110 of the medicine bottle section is sleeved and fixed on the medicine needle mechanism of the cassette bottle, and the rear half part of the inner housing 110 of the medicine bottle section is sleeved and fixed on the inner housing 120 of the trigger sleeve. Medicine bottle section shell 111 cover is established on medicine bottle section inner shell 110 and the two is connected through first joint portion, and first joint portion can make medicine bottle section shell 111 and the separation of medicine bottle section inner shell 110 under the state of extrusion energy storage firing mechanism in the direction of injection. The firing sleeve housing 121 is connected to the vial section housing 111. First joint portion can be for setting up the screw thread insection on medicine bottle section shell 111 and the medicine bottle section inner shell 110 contact surface or the draw-in groove that can joint each other, promotes energy storage firing mechanism along the injection direction and can make first joint portion dropout separation to medicine bottle section shell 111 and the separation of medicine bottle section inner shell 110 throw off. The interface between the firing sleeve housing 121 and the vial segment housing 111 may be threaded or otherwise releasably secured.
The inner triggering sleeve housing 120 is disposed inside the outer triggering sleeve housing 121 and is connected to the inner medicine vial section housing 110 via a second snap-fit portion. When the energy storage trigger mechanism is in a trigger state, the trigger sleeve inner shell 120 can be separated from the medicine bottle section inner shell 110. After being pushed by an external axial force, the joint of the second clamping part can be separated, and the inner housing 120 of the trigger sleeve and the inner housing 110 of the medicine bottle section generate relative movement. The piston rod 122 is arranged at the bottom sealed end of the inner shell 120 of the trigger sleeve, one end of the push rod 123 is clamped on the piston at the bottom end of the cartridge bottle medicine needle mechanism, the other end of the push rod 123 is provided with a cavity which is sleeved on the piston rod 122, and the push rod 123 can move relative to the piston rod 122. Particularly, when the cavity of the push rod 123, which is sleeved on the piston rod 122, is in a vacuum state at the initial state of the injection process, the damping effect is better when the push rod 123 and the piston rod 122 move relative to each other. Both the firing sleeve inner housing 120 and the piston rod 122 may be disposed at the bottom closed end of the firing sleeve outer housing 121. An insertion spring 131 for pushing the firing sleeve inner housing 120 in the injection direction is disposed between the firing sleeve inner housing 120 and the firing sleeve outer housing 121, and the insertion spring 131 is a compression spring in a compressed state. An injection spring 132 which is used for adjusting the injection speed and is pushed along the injection direction by the push rod 123 is arranged between the retaining shoulder of the push rod 123 and the retaining shoulder of the piston rod 122, the injection spring 132 is a compression spring in a compression state, when the triggering sleeve inner shell and the medicine bottle section inner shell which are connected by the second clamping part are separated from each other, the compression state of the injection spring 132 is rapidly released, the push rod is pushed to move to the injection position, and due to the vacuum action of the cavity between the push rod and the piston rod, the injection spring is decelerated under the action of negative pressure formed by the cavity pumping when the piston of the medicine needle mechanism of the card bottle is pushed forwards for injection. Along with the supplement of the gap between the cavity of the push rod and the piston rod to the air in the cavity, the damping force is gradually weakened, and finally the force released by the injection spring pushes all the injection out of the cartridge bottle medicine needle mechanism. A needle inserting spring 131 for pushing the trigger sleeve inner housing 120 in the injection direction is arranged between the trigger sleeve inner housing 120 and the trigger sleeve outer housing 121, and an injection spring 132 for adjusting the injection speed for pushing the push rod 123 in the injection direction is arranged between the stop shoulder of the push rod 123 and the stop shoulder of the piston rod 122.
During a two-handed, especially one-handed injection procedure, the bottom of the trigger sleeve housing 121 is pressed and the vial section housing 111 is pulled, so that the vial section housing 111 and the vial section housing 110 connected by the first snap-fit portion are separated from each other. The compression state of the needle inserting spring is released rapidly, the inner shell 120 of the triggering sleeve is in a triggering state, when the inner shell and the outer shell of the triggering sleeve are subjected to resistance of an injection position, needle inserting action is triggered when the clamping buckle of the second clamping part is pried by the wedge surfaces clamped by the second clamping part, and the inner shell 120 of the triggering sleeve moves towards the injection position rapidly. When the needle inserting action is about to be completed, the triggering sleeve inner shell and the medicine bottle section inner shell which are connected with the second clamping part are mutually separated, the compression state of the injection spring is rapidly released, the push rod is pushed to move to the injection position, and due to the vacuum action of the cavity between the push rod and the piston rod, the injection spring is decelerated under the action of the negative pressure formed by the cavity which is extracted when the piston of the medicine needle mechanism of the cassette bottle is pushed forwards for injection. Along with the supplement of the gap between the cavity of the push rod and the piston rod to the air in the cavity, the damping force is gradually weakened, and finally the force released by the injection spring pushes all the injection out of the cartridge bottle medicine needle mechanism. The utility model provides a pair of full-automatic injection pen of card formula, the joint part separation of the first joint portion of injection pen, the compressive force of needle entering spring drives the quick needle that advances of percussion sleeve inner shell, the compressive force of injection spring receives the damping force that vacuum cavity brought in the push rod again afterwards to slow down the injection speed that the push rod promoted, the needle that advances soon when finally realizing the injection, the requirement of slow injection, the most possible when having satisfied the first aid saves oneself, the operation demand of each other rescuing.
Further, the cartridge medicine needle mechanism includes a cartridge medicine bottle 201 and a needle 202 provided on the cartridge medicine bottle 201, wherein the cartridge medicine bottle 201 is fixed inside the medicine bottle section inner case 110. The card-type full-automatic injection pen further comprises a pen cap protection mechanism, and the pen cap protection mechanism comprises a needle protection cap 301 sleeved on the needle end of the card-type medicine bottle 201. The needle shield cap 301, which closes the forwardmost end of the needle 202, maintains the sterility of the medicament within the cartridge vial needle mechanism so that, in use, the needle shield cap 301 must be removed from the needle 202 immediately prior to starting the cartridge full-automatic injection pen.
Further, cap protection mechanism 3 still includes a percussion section of thick bamboo 302 that is used for wrapping up syringe needle 202, and the tip and the medicine bottle section shell 111 of a percussion section of thick bamboo 302 are connected through third joint portion, and percussion section of thick bamboo 302 inboard still is provided with the spacing shoulder that keeps off that is used for restricting the motion of cassette bottle medicine needle mechanism along injection position direction. The third clamping portion is detachably connected and may include a slant protrusion disposed on the trigger cylinder 302 and a clamping groove disposed on the medicine bottle section housing 111, thereby forming a clamping portion. The third engaging portion includes a latch in the form of a bevel protrusion disposed on the trigger cylinder 302 and a latch slot disposed on the medicine bottle section housing 111, wherein the trigger cylinder 302 further includes a front end spring 303 disposed at an end of the trigger cylinder 302. When the third engagement portion is pressed to release the engagement, the front end spring 303 releases the compression force from the compressed state, and the auxiliary trigger cylinder 302 is ejected.
In one embodiment, as shown in fig. 1, the first protrusion on the outer housing 111 of the vial section and the second protrusion on the inner housing 110 of the vial section abut to form a first snap-fit connection. When the first engaging portion is disengaged, the cartridge bottle needle mechanism receives the spring force released from the injection spring 132 in the compressed state, and the injection spring 132 drives the cartridge bottle needle mechanism to move in the injection direction. When the cartridge bottle medicine needle mechanism moves to the position of the limit stop shoulder at the inner side of the percussion barrel 302, the cartridge bottle medicine needle mechanism stops, and the cartridge bottle medicine needle mechanism is limited from moving to a certain position along the direction of the injection position and being stopped by the limit stop shoulder, so that the needle head of the cartridge bottle medicine needle mechanism is prevented from being pierced into a human body.
In one embodiment, the trigger sleeve housing 121 is held by hand to align the bottom end thereof with the injection site and then pressed, the inclined projection of the trigger barrel 302 collides with the notch of the medicine bottle section housing 111 and is forced, the inclined projection is lifted from the notch, and the locking constraint of the energy storage trigger mechanism is released.
Furthermore, the card type full-automatic injection pen also comprises a button mechanism. Wherein, button mechanism includes the button sleeve 402 of cover establishing in the medicine bottle section shell 111 outside, sets up between button sleeve 402 and the medicine bottle section shell 111 outside and be used for providing the holding spring 401 of tensile force to button sleeve 402 and be used for controlling the safety pin 403 that prevents to fire a section of thick bamboo 302 and medicine bottle section shell 111 separation. The spring 401 is held in a compressed state. The bottom end of the sleeve housing 121 can be pressed after being aligned with the injection position by the hand, and after the inclined projection of the trigger cylinder 302 collides with the clamping groove on the medicine bottle section housing 111 and is stressed, the inclined pin head of the safety pin 403 lifts the inclined projection of the trigger cylinder 302 from the clamping groove, so that the locking constraint of the energy storage trigger mechanism is released.
Further, the firing cylinder 302 comprises a cylinder body, a pen cap 304 sleeved at one end of the cylinder body, and a tripping spring 305 arranged between the pen cap 304 and the cylinder body and having one end connected with the pen cap 304. The wedge surface forces the buckling wedge surface of the pen cap 304 to be pressed and contracted inwards, and under the action of the tripping spring 305, if the pen cap 304 is fixedly connected with the needle protection cap 301, the pen cap 304 and the tripping spring 305 can be flicked together with the needle protection cap 301, the pen cap 304 and the tripping spring 305, separated from other parts of the clamping type full-automatic injection pen and in a state of waiting for needle insertion.
Furthermore, medicine bottle section shell 111 is provided with the assembly body 113 that resets in first joint portion position department, can be through the connecting piece of the above-mentioned full-automatic injection pen of the supplementary assembly of the assembly body that resets for can use repeatedly after the injection pen changes card bottle medicine needle mechanism again.
The utility model provides a full-automatic injection pen of card formula is directed against card formula medicine bottle ration injection, is suitable for the special occasion of the needs first aid such as disaster scene, battlefield, outdoor activities are injured and uses medical instrument. When injection is needed, the operator can carry out injection only by simple operation with one hand. The maximum possible self-rescue and mutual-rescue operation requirements during first aid are met through the design of the scheme. When the card type full-automatic injection pen is completely combined: 1. the cassette vial has been installed in the injection pen. 2. Under the constraint of the energy storage triggering mechanism, the needle inserting spring is compressed, the card type medicine bottle is locked at the rear end, and the card type medicine bottle is in a state to be triggered. 3. The front end of the injection needle head of the cassette medicine bottle is provided with a needle protective cap to prevent pollution. 4. The inside of the front end pen cap is fixedly connected with the needle protection cap. 5. The firing cartridge is locked. 6. The inner cavity of the injection pen is in a microclimate environment in a sterile state. 7. In order to meet the action requirements of fast needle insertion and slow injection during injection, a damping mechanism, namely a needle insertion spring and an injection spring, is arranged to reduce the large-force injection after the injection and the triggering, reduce the pressure of the medicine entering the human body, improve the muscle emergency contraction caused by pressure mutation and enable the medicine to be smoothly pushed into the human body. In a percussion state: 8. firstly, the pen cap drives the needle protection cap to be pulled off and separated from other parts of the injection pen. 9. And secondly, aligning the front end of the injection pen with the injection site, pressing and keeping the state. And 10, in the third step, the first clamping part and the third clamping part are released, before the human body is punctured, the needle inserting spring and the injection spring release force application and injection to start exhausting, and the human body is continuously punctured to finish injection.
In conclusion, the card type full-automatic injection pen device has good use effects of being convenient to carry, simple to operate, capable of being reused for multiple times, free of power supply of other energy sources and the like.
The card type full-automatic injection pen provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The clamping type full-automatic injection pen is characterized by comprising an energy storage triggering mechanism and a clamping type bottle medicine needle mechanism arranged in the energy storage triggering mechanism, wherein the energy storage triggering mechanism comprises a medicine bottle section inner shell (110), a medicine bottle section outer shell (111), a triggering sleeve inner shell (120), a triggering sleeve outer shell (121), a piston rod (122) and a push rod (123); wherein,
the front half part of the medicine bottle section inner shell (110) is sleeved and fixed on the cassette bottle medicine needle mechanism, and the rear half part is sleeved and fixed on the triggering sleeve inner shell (120);
the medicine bottle section outer shell (111) is sleeved on the medicine bottle section inner shell (110) and is connected with the medicine bottle section inner shell (110) through a first clamping portion, and the medicine bottle section outer shell (111) and the medicine bottle section inner shell (110) can be separated from each other in the state that the first clamping portion can extrude the energy storage trigger mechanism along the injection direction;
the triggering sleeve outer shell (121) is connected with the medicine bottle section outer shell (111), the triggering sleeve inner shell (120) is arranged in the triggering sleeve outer shell (121), the triggering sleeve inner shell (120) is connected with the medicine bottle section inner shell (110) through a second clamping portion, and when the energy storage triggering mechanism is in a triggering state, the triggering sleeve inner shell (120) can be separated from the medicine bottle section inner shell (110);
the piston rod (122) is arranged at the bottom sealing end of the firing sleeve inner shell (120), one end of the push rod (123) is clamped on the piston at the bottom end of the cartridge bottle medicine needle mechanism, the other end of the push rod (123) is provided with a cavity sleeved on the piston rod (122), and the push rod (123) can move relative to the piston rod (122);
a needle inserting spring (131) used for pushing the triggering sleeve inner shell (120) along an injection direction is arranged between the triggering sleeve inner shell (120) and the triggering sleeve outer shell (121), an injection spring (132) used for adjusting the injection speed of the pushing rod (123) pushing along the injection direction is arranged between a blocking shoulder of the pushing rod (123) and a blocking shoulder of the piston rod (122), the compression force of the needle inserting spring (131) drives the triggering sleeve inner shell (120) to insert a needle rapidly, and then the compression force of the injection spring (132) is subjected to the damping force brought by a vacuum cavity in the pushing rod (123), so that the injection speed pushed by the pushing rod (123) is reduced, and the requirements of needle inserting rapidly and slow injection during injection are finally met.
2. The cartridge type full automatic injection pen according to claim 1, wherein the cartridge vial drug needle mechanism comprises a cartridge vial (201) and a needle (202) provided on the cartridge vial (201), wherein the cartridge vial (201) is fixed inside the vial section inner housing (110).
3. The card-type full-automatic injection pen according to claim 2, further comprising a pen cap protection mechanism comprising a needle protection cap (301) fitted over the needle end of the card-type medicine bottle (201).
4. The card type full-automatic injection pen according to claim 3, wherein the pen cap protection mechanism (3) further comprises a firing cylinder (302) for wrapping the needle (202), the end of the firing cylinder (302) is connected with the medicine bottle section shell (111) through a third clamping part, and a limiting stop shoulder for limiting the movement of the card type bottle medicine needle mechanism along the direction of the injection position is further arranged on the inner side of the firing cylinder (302).
5. The card-type full-automatic injection pen according to claim 4, further comprising a button mechanism; wherein, button mechanism establishes including the cover button sleeve (402) in medicine bottle section shell (111) outside, set up button sleeve (402) with between medicine bottle section shell (111) the outside and be used for right button sleeve (402) provide tensile force retaining spring (401) and be used for control prevent firing section of thick bamboo (302) with safety pin (403) of medicine bottle section shell (111) separation.
6. The card type full automatic injection pen according to claim 4, wherein the third clamping part comprises a buckle arranged on the firing cylinder (302) and a clamping groove arranged on the medicine bottle section shell (111), and a front end spring (303) is further arranged at the end part of the firing cylinder (302).
7. The card type full automatic injection pen according to claim 6, wherein the firing cylinder (302) comprises a cylinder body, a pen cap (304) sleeved at one end of the cylinder body, and a tripping spring (305) arranged between the pen cap (304) and the cylinder body and having one end connected with the pen cap (304).
8. The card-type full automatic injection pen according to claim 7, characterized in that the pen cap (304) is fixedly connected with the needle guard cap (301).
9. The card-type full automatic injection pen according to claim 1, wherein the vial section housing (111) and the firing sleeve housing (121) are detachably fastened.
10. The card-type full automatic injection pen according to claim 1, wherein the medicine bottle section housing (111) is provided with a reset assembly body (113) at the first card portion position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226505.5A CN106492313B (en) | 2016-12-27 | 2016-12-27 | Card type full-automatic injection pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226505.5A CN106492313B (en) | 2016-12-27 | 2016-12-27 | Card type full-automatic injection pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106492313A CN106492313A (en) | 2017-03-15 |
| CN106492313B true CN106492313B (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611226505.5A Active CN106492313B (en) | 2016-12-27 | 2016-12-27 | Card type full-automatic injection pen |
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| CN (1) | CN106492313B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110709121B (en) * | 2017-06-08 | 2022-06-24 | 安进公司 | Torque-driven drug delivery device |
| CN109908434A (en) * | 2019-04-29 | 2019-06-21 | 中国人民解放军东部战区总医院 | A kind of replaceable drug is prefilled with automatic injector and its working method |
| CN110404139B (en) * | 2019-05-22 | 2024-07-16 | 嘉兴森迈医疗科技有限公司 | Medical injection device |
| CN110237365B (en) * | 2019-07-08 | 2024-02-23 | 深圳惠迈智能科技有限公司 | Medical injection device capable of replacing medicine bottle |
| CN110743064B (en) * | 2019-11-15 | 2023-12-01 | 杭州快通科技有限公司 | electronic injection pen |
| CN219558328U (en) * | 2022-03-30 | 2023-08-22 | 苏州赛卫生物科技有限公司 | Locking excitation mechanism and automatic injection pen thereof |
| WO2024055268A1 (en) * | 2022-09-16 | 2024-03-21 | 嘉兴森迈医疗科技有限公司 | Mechanical automatic injection pen |
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| WO1988010129A1 (en) * | 1987-06-25 | 1988-12-29 | Nova Medical Pty. Limited | Slow delivery injection device |
| CN102397603A (en) * | 2010-09-16 | 2012-04-04 | 无锡市宇寿医疗器械股份有限公司 | Safety syringe for retracting needle point by depending on vacuum negative pressure |
| CN104906656A (en) * | 2010-04-21 | 2015-09-16 | 艾伯维生物技术有限公司 | Wearable automatic injection device for controlled delivery of therapeutic agents |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6863659B2 (en) * | 2001-12-10 | 2005-03-08 | Bruce George Sharpe | Sharp safe hydraulic retractable syringe |
| EP2480273B1 (en) * | 2009-09-26 | 2013-08-14 | Anteis SA | Assisted injection device |
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| WO1988010129A1 (en) * | 1987-06-25 | 1988-12-29 | Nova Medical Pty. Limited | Slow delivery injection device |
| CN104906656A (en) * | 2010-04-21 | 2015-09-16 | 艾伯维生物技术有限公司 | Wearable automatic injection device for controlled delivery of therapeutic agents |
| CN102397603A (en) * | 2010-09-16 | 2012-04-04 | 无锡市宇寿医疗器械股份有限公司 | Safety syringe for retracting needle point by depending on vacuum negative pressure |
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| CN106492313A (en) | 2017-03-15 |
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