CN115006651B - Needle penetration prevention safety device for injection device - Google Patents
Needle penetration prevention safety device for injection device Download PDFInfo
- Publication number
- CN115006651B CN115006651B CN202210634734.XA CN202210634734A CN115006651B CN 115006651 B CN115006651 B CN 115006651B CN 202210634734 A CN202210634734 A CN 202210634734A CN 115006651 B CN115006651 B CN 115006651B
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- Prior art keywords
- side wall
- telescopic sleeve
- outer side
- needle
- fixed telescopic
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- 238000002347 injection Methods 0.000 title claims abstract description 16
- 239000007924 injection Substances 0.000 title claims abstract description 16
- 230000035515 penetration Effects 0.000 title claims description 4
- 230000002265 prevention Effects 0.000 title claims description 4
- 238000005096 rolling process Methods 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000009471 action Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 239000003814 drug Substances 0.000 abstract description 56
- 239000003708 ampul Substances 0.000 abstract description 48
- 239000007788 liquid Substances 0.000 abstract description 45
- 239000000843 powder Substances 0.000 abstract description 20
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 6
- 210000003781 tooth socket Anatomy 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- 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
- A61M5/31566—Means improving security or handling thereof
- A61M5/31571—Means preventing accidental administration
Abstract
The invention relates to the injector technology, which is used for solving the problems of needle puncture, difficult recovery and treatment, inconvenient ampoule bottle opening and error of injection liquid medicine amount, in particular to an anti-needling safety device for an injection device, comprising a needle cylinder, scale marks, a needle head and a piston push rod, wherein a plurality of scale marks which are uniformly distributed are arranged on the outer side wall of the needle cylinder; according to the invention, the needle is covered by the fixed telescopic sleeve and the movable telescopic sleeve to prevent puncture, the needle and the rotary drum are conveniently detached, the subsequent recovery operation is not influenced, the ampoule bottle is rotationally polished by the grinding wheel, the ampoule bottle is conveniently broken by a user, the liquid medicine sucking operation is not influenced by the loss of the grinding wheel, the liquid medicine to be injected is calculated by the scale groove on the piston push rod, and the movement of the piston push rod is limited by the sliding frame, so that the liquid medicine injected into the medicine powder bottle is not excessively treated.
Description
Technical Field
The invention relates to the injector technology, in particular to an anti-needling safety device for an injection device.
Background
A syringe is a common medical device that is used to withdraw or inject gas or liquid mainly with a needle, and can also be used for injection of medical devices, containers, such as scientific instruments in chromatography, through a rubber septum;
In the prior art, when the needle is relatively sharp in position and is easy to hurt a user carelessly after the syringe is used, germs carried on the needle are easy to infect the user, bad influence is caused on the health of the user, the needle is prevented from being hurt by the way of retracting the needle into the syringe, and the needle retracted into the syringe is inconvenient to classify and recycle the syringe and the needle when the syringe is recycled; when a user sucks the liquid medicine in the ampoule bottle by using the injector, the ampoule bottle is required to be squeezed and rubbed by the grinding wheel, then the ampoule bottle is broken along the friction position, and then the needle of the injector is inserted into the ampoule bottle to suck the liquid medicine, so that the grinding wheel is small and is easy to be lost in the use process, and the ampoule bottle is inconvenient to open by the user; in the process of mixing the medicine liquid and the medicine powder, a user needs to firstly use an injector to suck the medicine liquid in the ampoule bottle and then respectively inject the medicine liquid into different medicine powder bottles for mixing, and the injection process is easy to cause excessive medicine liquid injected into part of medicine powder bottles due to careless operation of the user, so that the mixing proportion of the medicine powder and the medicine liquid is wrong, and the use of the mixed medicine liquid is influenced;
The application provides a solution to the technical problem.
Disclosure of Invention
The invention aims to cover a needle by a fixed telescopic sleeve and a movable telescopic sleeve to prevent puncture, is convenient to detach, does not influence the classification treatment of the needle and a rotary drum in the subsequent recovery operation, rotates and polishes ampoule bottles by a grinding wheel, is convenient for users to break off ampoule bottles, does not influence the sucking operation of liquid medicine due to the loss of the grinding wheel, calculates the liquid medicine to be injected by a scale groove on a piston push rod, and is limited by a sliding frame in the movement of the piston push rod, so that the liquid medicine injected into the medicine powder bottle cannot be excessive, and solves the problems of puncture of the needle, difficult recovery treatment, inconvenience in opening the ampoule bottles and error in the liquid medicine injection amount.
The aim of the invention can be achieved by the following technical scheme:
A prevent acupuncture safety device for injection device, including cylinder, scale mark, syringe needle and piston push rod, a plurality of evenly distributed's scale mark has been seted up to the cylinder lateral wall, cylinder inside wall sliding connection has piston push rod, the cylinder is kept away from the one end of piston push rod is connected with the syringe needle, the cover of syringe needle lateral wall is equipped with fixed flexible cover, fixed flexible cover inside wall sliding connection has movable flexible cover, integrated into one piece has spacing in four directions of movable flexible cover lateral wall, adjusting teeth has been seted up to spacing lateral wall both sides, fixed flexible cover inside wall corresponds spacing position department has seted up the spacing groove, fixed flexible cover lateral wall one side is provided with adjusting part.
As a preferred implementation mode of the invention, the adjusting component comprises rolling teeth, a rolling wheel is rotationally connected to the position, close to the rolling teeth, of the outer side wall of the fixed telescopic sleeve through a connecting seat, the rolling wheel is in transmission connection with the rolling teeth through a transmission belt, clamping grooves are formed in the four directions of the outer side wall of the needle head, connecting buckles are rotationally connected to the position, corresponding to the clamping grooves, of the outer side wall of the fixed telescopic sleeve through a rotating shaft, and a telescopic spring is connected to the position, corresponding to the fixed telescopic sleeve, of the inner part of the movable telescopic sleeve.
As a preferred implementation mode of the invention, one side of the outer side wall of the fixed telescopic sleeve, which is far away from the rolling teeth, is connected with a limit box, an adjusting rod is connected inside the limit box in a sliding manner, a through hole is formed in the position, corresponding to the adjusting rod, of the outer side wall of the fixed telescopic sleeve, and the outer side wall of the adjusting rod is connected with a limit spring.
As a preferred implementation mode of the invention, the position, close to the limit box, of the outer side wall of the fixed telescopic sleeve is rotationally connected with a supporting frame through a rotating connecting piece, a mounting groove is formed in the upper portion inside the supporting frame, a plurality of evenly distributed grinding wheels are rotationally connected to the inner side wall of the mounting groove through a rotating shaft, a transmission gear is connected to the position, close to the fixed telescopic sleeve, of the inner side wall of the mounting groove, a communication hole is formed in the position, corresponding to the transmission gear, of the rotating connecting piece and the fixed telescopic sleeve, a rotating wheel is rotationally connected inside the communication hole through the rotating shaft, and a jogged tooth groove is formed in the position, corresponding to the transmission gear, of the outer side wall of the rotating wheel.
As a preferred implementation mode of the invention, two sides of the outer side wall of the supporting frame are provided with sliding grooves, the inner side wall of each sliding groove is connected with a movable plate in a sliding manner through a sliding block, two sides of the lower surface of the inner part of the supporting frame are connected with limiting frames corresponding to the positions of the movable plates, two sides of the outer side wall of each movable plate are provided with sliding grooves corresponding to the positions of the limiting frames, one side, close to the movable plates, of the outer side wall of the supporting frame is connected with limiting rods, and the upper surface of each movable plate is connected with a tension spring corresponding to the positions of the limiting rods.
As a preferred implementation mode of the invention, a plurality of scale grooves which are uniformly distributed are formed on two sides of the outer side wall of the piston push rod, the outer side wall of the piston push rod is connected with a sliding frame in a sliding mode, baffles are integrally formed on two sides of the outer side wall of the sliding frame, a slot is formed on one side of the upper surface of the sliding frame, and a plugboard is connected to the slot in a sliding mode.
As a preferred implementation mode of the invention, a rotating plate is rotatably connected to the position, close to the slot, of the upper surface of the sliding frame through a rotating seat, a return spring is connected to one side, corresponding to the rotating plate, of the upper surface of the sliding frame, a shrinkage sleeve is connected to one side, close to the inserting plate, of the rotating plate, a shrinkage plate is slidably connected to the inside of the shrinkage sleeve, and an adjusting connecting piece is rotatably connected to one end, close to the inserting plate, of the shrinkage plate through the rotating seat.
Compared with the prior art, the invention has the beneficial effects that:
1. The fixed telescopic sleeve and the movable telescopic sleeve are sleeved at the needle head position through the connecting buckle, the needle head is covered to prevent the stabbing, and the fixed telescopic sleeve and the movable telescopic sleeve are convenient to detach, so that the classifying treatment of the needle head and the rotary drum by the subsequent recovery operation is not influenced;
2. the grinding wheel drives the grinding wheel in the support frame to rotate and grind the ampoule bottle clamped by the movable plate through the rotating wheel in the moving process of the movable telescopic sleeve, and after the movable telescopic sleeve is contracted, the grinding wheel can finish the grinding operation of the ampoule bottle, so that the ampoule bottle is convenient to break off by a user, and the sucking operation of the liquid medicine cannot be influenced by the loss of the grinding wheel;
3. The sliding frame moves at the outer side of the piston push rod, the calculation of the liquid medicine amount to be injected is carried out through the scale groove on the piston push rod, the movement of the piston push rod is limited by the sliding frame, the liquid medicine injected into the medicine powder bottle cannot be excessively caused, and the normal use of the mixed medicine liquid is prevented from being influenced by the error of the mixing proportion of the medicine powder and the liquid medicine.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a main block diagram of the present invention;
FIG. 2 is a schematic diagram of a movable telescoping sheath according to the present invention;
FIG. 3 is a schematic diagram of a fixed telescopic sleeve according to the present invention;
FIG. 4 is a block diagram of a support frame of the present invention;
FIG. 5 is a drawing of a construction of an extension spring of the present invention;
FIG. 6 is a block diagram of a piston rod according to the present invention;
FIG. 7 is a block diagram of a sliding frame of the present invention;
fig. 8 is an enlarged view of the portion a of fig. 7 according to the present invention.
In the figure: 1. a needle cylinder; 21. fixing the telescopic sleeve; 22. a movable telescopic sleeve; 23. a buckle groove; 24. a connecting buckle; 25. a rolling wheel; 26. a transmission belt; 27. rolling teeth; 28. adjusting teeth; 29. a limit bar; 210. a limit box; 211. an adjusting rod; 212. a limit groove; 213. a telescopic spring; 31. a support frame; 32. a sliding block; 33. a chute; 34. rotating the connecting piece; 35. grinding wheel; 36. a mounting groove; 37. a limiting frame; 38. a movable plate; 39. a transmission gear; 310. a limit rod; 311. a tension spring; 41. a sliding frame; 42. a scale groove; 43. a rotating plate; 44. a baffle; 45. a return spring; 46. a rotating seat; 47. a slot; 48. inserting plate; 49. adjusting the connecting piece; 410. a shrink sleeve; 5. scale marks; 6. a needle; 7. a piston push rod.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
Referring to fig. 1-3, an anti-needling safety device for an injection device comprises a needle cylinder 1, scale marks 5, needles 6 and a piston push rod 7, wherein a plurality of scale marks 5 which are uniformly distributed are formed on the outer side wall of the needle cylinder 1, the piston push rod 7 is slidingly connected to the inner side wall of the needle cylinder 1, one end of the needle cylinder 1 far away from the piston push rod 7 is connected with the needles 6, a fixed telescopic sleeve 21 is sleeved on the outer side wall of the needle 6, a movable telescopic sleeve 22 is slidingly connected to the inner side wall of the fixed telescopic sleeve 21, limit strips 29 are integrally formed on the outer side wall of the movable telescopic sleeve 22 in four directions, regulating teeth 28 are formed on two sides of the outer side wall of the limit strips 29, limit strips 29 on the inner side wall of the fixed telescopic sleeve 21 are embedded in the limit strips 212 in a sliding manner in the limit grooves 21 at positions corresponding to the limit strips 29, one side wall of the fixed telescopic sleeve 21 is rotationally connected with rolling teeth 27 through connecting seats, the rolling teeth 27 are rotationally connected with the regulating teeth 28 on the outer side wall of the movable telescopic sleeve 22 in a sliding manner, rolling teeth 27 are rotationally connected with the rolling teeth 27 through the inner side walls of the rotary shafts 25 of the movable telescopic sleeve 21 in a sliding manner, the rolling teeth 25 are rotatably connected with the rolling teeth 24 through the rotary shafts 25 in the rotary sleeves 25 corresponding to the rotary shafts 24 in the rotary sleeves 24 in the rotary shafts 23, the rotary sleeves 24 through the positions of the rotary shafts 25 are rotatably connected to the rotary sleeves 24 in the positions of the rotary sleeves 23 correspondingly arranged on the positions of the rotary sleeves 21, the position of the movable telescopic sleeve 22 corresponding to the fixed telescopic sleeve 21 is connected with a telescopic spring 213, one end of the telescopic spring 213 is connected with the movable telescopic sleeve 22, the other end of the telescopic spring 213 is connected inside the fixed telescopic sleeve 21, one side of the outer side wall of the fixed telescopic sleeve 21, which is far away from the rolling teeth 27, is connected with a limit box 210, the inside of the limit box 210 is connected with an adjusting rod 211 in a sliding manner, the position of the outer side wall of the fixed telescopic sleeve 21 corresponding to the adjusting rod 211 is provided with a through hole, the outer side wall of the adjusting rod 211 is connected with a limit spring, one end of the limit spring is connected on the limit box 210, the other end of the limit spring is connected on the adjusting rod 211, under the action of the limit spring, one end of the adjusting rod 211 is inserted into the fixed telescopic sleeve 21, and the position movement of the movable telescopic sleeve 22 inside the fixed telescopic sleeve 21 is limited through interaction between the adjusting teeth 28 on the movable telescopic sleeve 22;
In the prior art, when the needle 6 is positioned at a relatively sharp position after the injector is used, the injector is easy to hurt the user due to carelessness of the user, so that germs carried on the needle 6 are easy to be transmitted to the user, the physical health of the user is adversely affected, the needle 6 is partially retracted into the syringe 1 in a manner of being prevented from being hurt, and the needle 6 retracted into the syringe 1 is inconvenient to classify and recycle the syringe 1 and the needle 6 when the injector is recycled;
The injector after the use can be used for pulling the adjusting rod 211 on the limit box 210 towards the direction far away from the movable telescopic sleeve 22, so that one end of the adjusting rod 211 positioned inside the fixed telescopic sleeve 21 is not used for limiting the movement of the movable telescopic sleeve 22, the movable telescopic sleeve 22 is ejected from the inside of the fixed telescopic sleeve 21 to reset under the action of the resilience reset force of the extruded telescopic spring 213, the sharp part of the needle head 6 is covered, and the sharp part of the needle head 6 cannot cause injury to a user due to carelessness of the user.
Example 2:
referring to fig. 4-5, the outer side wall of the fixed telescopic sleeve 21 is rotatably connected with the supporting frame 31 through the rotary connecting piece 34, the upper part of the inner part of the supporting frame 31 is provided with the mounting groove 36, the inner side wall of the mounting groove 36 is rotatably connected with a plurality of grinding wheels 35 which are uniformly distributed through the rotary shaft, the inner side wall of the mounting groove 36 is connected with the transmission gear 39 near the position of the fixed telescopic sleeve 21, the transmission gear 39 is connected with the outer side of the connecting rotary shaft of the grinding wheel 35 near the position of the fixed telescopic sleeve 21 at the inner side of the mounting groove 36, the positions of the rotary connecting piece 34 and the fixed telescopic sleeve 21 corresponding to the transmission gear 39 are provided with communication holes, the inside of the communication holes is rotatably connected with the rotary wheels through the rotary shaft, the rotary wheels are closely contacted with the limit bars 29 at the outer side of the movable telescopic sleeve 22, and the rotary wheels are driven to rotate through mutual friction with the limit bars 29 in the moving process of the movable telescopic sleeve 22, the outer side wall of the rotating wheel is provided with a jogged tooth socket corresponding to the position of the transmission gear 39, the rotating wheel is jogged with the transmission gear 39 through the jogged tooth socket and drives the transmission gear 39 to rotate, the two sides of the outer side wall of the supporting frame 31 are provided with sliding grooves 33, the inner side wall of each sliding groove 33 is connected with a movable plate 38 in a sliding manner through a sliding block 32, the movable plates 38 are limited by a limiting frame 37, the sliding blocks 32 and a limiting rod 310 in the moving process, the positions of the two sides of the inner lower surface of the supporting frame 31, corresponding to the movable plates 38, of the movable plates 38 are connected with limiting frames 37, the positions of the two sides of the outer side wall of the movable plates 38, corresponding to the limiting frames 37, of the outer side wall of the supporting frame 31, which is close to the movable plates 38, are connected with limiting rods 310, and the positions of the upper surface of the movable plates 38, corresponding to the limiting rods 310, are connected with extension springs 311;
In the prior art, when a user sucks the liquid medicine in the ampoule bottle by using the injector, the ampoule bottle is required to be squeezed and rubbed by the grinding wheel 35, then the ampoule bottle is broken along the friction position, and then the needle 6 of the injector is inserted into the ampoule bottle to suck the liquid medicine, so that the grinding wheel 35 is smaller and is easy to be lost in the use process, and the user is inconvenient to open the ampoule bottle;
When the injector is used by a user, the movable telescopic sleeve 22 is required to be contracted into the fixed telescopic sleeve 21 through the rotation of the rolling wheel 25, the movable telescopic sleeve 22 is in mutual friction with the rotating wheel inside the supporting frame 31 to drive the rotating wheel to rotate in the moving process, the rotating wheel is mutually embedded with the transmission gear 39 through the embedded tooth grooves in the rotating process, the grinding wheel 35 coaxial with the transmission gear 39 is enabled to rotate, the movable plate 38 drives the stretching spring 311 to stretch and deform in the process of downwards pressing the inside of the supporting frame 31, the movable plate 38 drives the ampoule to move upwards under the action of the rebound force of the stretching spring 311 after the ampoule is placed into the supporting frame 31, the outer side of the ampoule is enabled to be clung to the outer side of the grinding wheel 35 inside the mounting groove 36, and the ampoule is enabled to be extruded with the grinding wheel 35 through the structure that the upper end of the ampoule is big end down, one grinding wheel 35 is in the rotating process, the ampoule is driven to rotate through friction, the outer sides of the other grinding wheels 35 are enabled to polish, the ampoule is enabled to be damaged, the ampoule is enabled to be directly pulled out of the ampoule bottle after the ampoule is placed into the supporting frame 31, the ampoule is not required to be broken, and the ampoule is required to be directly pulled out of the ampoule is required to be broken, and the ampoule is not required to be broken, and the ampoule is required to be directly to be pulled, and the ampoule is required to be broken.
Example 3:
Referring to fig. 6-8, a plurality of scale grooves 42 are uniformly distributed on two sides of an outer side wall of a piston push rod 7, the distance between the scale grooves 42 is the same as the distance between scale marks 5 on a needle cylinder 1, the outer side wall of the piston push rod 7 is slidably connected with a sliding frame 41, two sides of the outer side wall of the sliding frame 41 are integrally formed with a baffle plate 44, one side of the upper surface of the sliding frame 41 is provided with a slot 47, the position of the slot 47 is slidably connected with a plugboard 48, the position of the upper surface of the sliding frame 41 close to the slot 47 is rotatably connected with a rotating plate 43 through a rotating seat 46, one side of the upper surface of the sliding frame 41 corresponding to the rotating plate 43 is connected with a return spring 45, one end of the return spring 45 is connected to the rotating plate 43, the other end of the return spring is connected to the sliding frame 41, one side of the rotating plate 43 close to the plugboard 48 is connected with a shrinkage sleeve 410, the inside of the shrinkage sleeve 410 is slidably connected with a shrinkage plate, and one end of the shrinkage plate close to the plugboard 48 is rotatably connected with an adjusting connecting piece 49 through the rotating seat 46.
In the prior art, in the process of mixing the medicine liquid and the medicine powder, a user needs to firstly use an injector to suck the medicine liquid in the ampoule bottle and then respectively inject the medicine liquid into different medicine powder bottles for mixing, and in the injection process, the medicine liquid injected into part of medicine powder bottles is easily excessive due to careless operation of the user, so that the mixing proportion of the medicine powder and the medicine liquid is wrong, and the use of the mixed medicine liquid is influenced;
After a user absorbs the liquid medicine in the ampoule bottle, according to the reading of the scale groove 42 on the piston push rod 7 at the tail end of the needle cylinder 1 and the liquid medicine amount to be injected into the powder bottle, one end of the rotating plate 43 is pressed to enable the rotating plate 43 to rotate around the rotating seat 46, the inserting plate 48 is driven to move out of the slot 47, the movable restriction on the sliding frame 41 is released, the sliding frame 41 can move in position outside the piston push rod 7, the rotating plate 43 is loosened after the sliding plate moves to the corresponding scale groove 42, the inserting plate 48 is reinserted into the corresponding scale groove 42, the scale value between the tail end of the needle cylinder 1 and the sliding frame 41 is equal to the liquid medicine amount to be injected, when the user injects the liquid medicine into the powder bottle, the movement of the piston push rod 7 is limited by the sliding frame 41, the liquid medicine amount to be injected into the powder bottle cannot be excessively, and the normal use of the mixed liquid medicine is prevented from being influenced by errors due to the mixing proportion of the powder and the liquid medicine.
When the syringe is in use, the fixed telescopic sleeve 21 and the movable telescopic sleeve 22 can be sleeved outside the needle 6, the fixed telescopic sleeve 21 is connected inside the buckling groove 23 outside the needle 6 through the connecting buckling 24, stable connection with the syringe is realized, when the syringe is in use, the rolling wheel 25 can be driven by the rolling of the rolling wheel 25 through the driving belt 26 to rotate the rolling teeth 27, the movable telescopic sleeve 22 is driven to move towards the inside of the fixed telescopic sleeve 21 through mutual embedding with the adjusting teeth 28 outside the movable telescopic sleeve 22 in the rotating process of the rolling teeth 27, the telescopic spring 213 inside the fixed telescopic sleeve 21 is extruded and contracted in the moving process of the movable telescopic sleeve 22 towards the inside of the fixed telescopic sleeve 21, the adjusting rod 211 inside the limiting box 210 stretches out to the inside of the fixed telescopic sleeve 21 under the effect of the limiting spring, the movable telescopic sleeve 22 is clamped at the position of the adjusting teeth 28, in the moving process, the inclined surface of the adjusting teeth 28 and the lower end of the adjusting rod 211 are mutually extruded, so that the adjusting rod 211 moves outwards, after passing through the inclined surface, the adjusting rod 211 automatically resets under the action of the limiting spring and is clamped between the adjusting teeth 28 again, the situation that the movable telescopic sleeve 22 moves reversely under the action of the limiting spring 213 is placed, the injector after being used can pull the adjusting rod 211 on the limiting box 210 to the direction away from the movable telescopic sleeve 22, one end of the adjusting rod 211 positioned inside the fixed telescopic sleeve 21 does not limit the movement of the movable telescopic sleeve 22 any more, the movable telescopic sleeve 22 is ejected from the inside of the fixed telescopic sleeve 21 to reset under the action of the rebound reset force of the extruded telescopic spring 213, the sharp part of the needle 6 is covered, the sharp part of the needle 6 is prevented from hurting the user by carelessness of the user;
the movable telescopic sleeve 22 is mutually rubbed with the rotating wheel in the supporting frame 31 to drive the rotating wheel to rotate in the moving process, the rotating wheel is mutually jogged with the transmission gear 39 through the jogged tooth socket in the rotating process, the grinding wheel 35 coaxial with the transmission gear 39 rotates, the movable plate 38 drives the stretching spring 311 to stretch and deform in the downward pressing process in the supporting frame 31, after the ampoule is placed in the supporting frame 31, the movable plate 38 drives the ampoule to move upwards under the action of the resilience force of the stretching spring 311, the outer side of the ampoule is tightly attached to the outer sides of a plurality of grinding wheels 35 in the mounting groove 36, the ampoule is mutually extruded with the grinding wheel 35 under the action of the stretching spring 311 due to the fact that the upper end of the ampoule is of a structure with a small upper part and a big lower part, one grinding wheel 35 rotates through friction in the rotating process, other grinding wheels 35 also rotate to grind the outer sides of the ampoule, and after the shrinkage of the movable telescopic sleeve 22 is completed, a user can directly take the ampoule from the supporting frame 31 to perform breaking operation, and the ampoule is not required to be broken, and the ampoule liquid medicine is not required to be sucked;
After a user absorbs the liquid medicine in the ampoule bottle, according to the reading of the scale groove 42 on the piston push rod 7 at the tail end of the needle cylinder 1 and the liquid medicine amount to be injected into the powder bottle, one end of the rotating plate 43 is pressed to enable the rotating plate 43 to rotate around the rotating seat 46, the inserting plate 48 is driven to move out of the slot 47, the movable restriction on the sliding frame 41 is released, the sliding frame 41 can move in position outside the piston push rod 7, the rotating plate 43 is loosened after the sliding plate moves to the corresponding scale groove 42, the inserting plate 48 is reinserted into the corresponding scale groove 42, the scale value between the tail end of the needle cylinder 1 and the sliding frame 41 is equal to the liquid medicine amount to be injected, when the user injects the liquid medicine into the powder bottle, the movement of the piston push rod 7 is limited by the sliding frame 41, the liquid medicine amount to be injected into the powder bottle cannot be excessively, and the normal use of the mixed liquid medicine is prevented from being influenced by errors due to the mixing proportion of the powder and the liquid medicine.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (5)
1. The needle penetration prevention safety device for the injection device comprises a needle cylinder (1), scale marks (5), a needle head (6) and a piston push rod (7), wherein a plurality of scale marks (5) which are uniformly distributed are formed in the outer side wall of the needle cylinder (1), the piston push rod (7) is slidingly connected to the inner side wall of the needle cylinder (1), one end, far away from the piston push rod (7), of the needle cylinder (1) is connected with the needle head (6), the needle penetration prevention safety device is characterized in that a fixed telescopic sleeve (21) is sleeved on the outer side wall of the needle head (6), a movable telescopic sleeve (22) is slidingly connected to the inner side wall of the fixed telescopic sleeve (21), limit bars (29) are integrally formed in four directions on the outer side wall of the movable telescopic sleeve (22), regulating teeth (28) are formed in two sides of the outer side wall of each limit bar (29), a limit groove (212) is formed in the position of the inner side wall of the fixed telescopic sleeve (21) corresponding to the limit bars (29), and one side of the outer side wall of the fixed telescopic sleeve (21) is provided with a regulating component.
The adjusting component comprises rolling teeth (27), a rolling wheel (25) is rotationally connected to the position, close to the rolling teeth (27), of the outer side wall of the fixed telescopic sleeve (21) through a connecting seat, the rolling wheel (25) is in transmission connection with the rolling teeth (27) through a transmission belt (26), clamping grooves (23) are formed in the four directions of the outer side wall of the needle head (6), connecting buckles (24) are rotationally connected to the position, corresponding to the clamping grooves (23), of the outer side wall of the fixed telescopic sleeve (21), and telescopic springs (213) are connected to the position, corresponding to the fixed telescopic sleeve (21), of the movable telescopic sleeve (22);
One side of the outer side wall of the fixed telescopic sleeve (21) far away from the rolling teeth (27) is connected with a limit box (210), an adjusting rod (211) is connected inside the limit box (210) in a sliding mode, a through hole is formed in the position, corresponding to the adjusting rod (211), of the outer side wall of the fixed telescopic sleeve (21), and the outer side wall of the adjusting rod (211) is connected with a limit spring;
One end of a limiting spring is connected to the limiting box (210), the other end of the limiting spring is connected to the adjusting rod (211), one end of the adjusting rod (211) is inserted into the fixed telescopic sleeve (21) under the action of the limiting spring, and the position movement of the movable telescopic sleeve (22) in the fixed telescopic sleeve (21) is limited through interaction between the limiting spring and the adjusting teeth (28) on the movable telescopic sleeve (22).
2. The anti-needling safety device for an injection device according to claim 1, wherein the outer side wall of the fixed telescopic sleeve (21) is close to the position of the limit box (210), a supporting frame (31) is rotationally connected with a rotating connecting piece (34), a mounting groove (36) is formed in the upper portion inside the supporting frame (31), a plurality of grinding wheels (35) which are uniformly distributed are rotationally connected to the inner side wall of the mounting groove (36) through a rotating shaft, a transmission gear (39) is connected to the position of the inner side wall of the mounting groove (36) close to the fixed telescopic sleeve (21), a communication hole is formed in the position of the rotating connecting piece (34) and the fixed telescopic sleeve (21) corresponding to the transmission gear (39), a rotating wheel is rotationally connected in the communication hole, and a jogged tooth groove is formed in the position of the outer side wall of the rotating wheel corresponding to the transmission gear (39).
3. The anti-needling safety device for an injection device according to claim 2, wherein sliding grooves (33) are formed in two sides of the outer side wall of the supporting frame (31), movable plates (38) are slidably connected to the inner side walls of the sliding grooves (33) through sliding blocks (32), limiting frames (37) are connected to positions, corresponding to the movable plates (38), of two sides of the inner lower surface of the supporting frame (31), sliding grooves are formed in positions, corresponding to the limiting frames (37), of two sides of the outer side wall of the movable plates (38), a limiting rod (310) is connected to one side, close to the movable plates (38), of the outer side wall of the supporting frame (31), and a stretching spring (311) is connected to the positions, corresponding to the limiting rods (310), of the upper surface of the movable plates (38).
4. The anti-needling safety device for an injection device according to claim 1, wherein a plurality of uniformly distributed scale grooves (42) are formed in two sides of the outer side wall of the piston push rod (7), the outer side wall of the piston push rod (7) is slidably connected with a sliding frame (41), baffles (44) are integrally formed in two sides of the outer side wall of the sliding frame (41), a slot (47) is formed in one side of the upper surface of the sliding frame (41), and a plugboard (48) is slidably connected in the position of the slot (47).
5. The anti-needling safety device for an injection device according to claim 4, wherein a rotating plate (43) is rotatably connected to the upper surface of the sliding frame (41) at a position close to the slot (47) through a rotating seat (46), a return spring (45) is connected to one side of the upper surface of the sliding frame (41) corresponding to the rotating plate (43), a shrink sleeve (410) is connected to one side of the rotating plate (43) close to the insertion plate (48), a shrink plate is slidably connected to the inside of the shrink sleeve (410), and an adjusting connector (49) is rotatably connected to one end of the shrink plate close to the insertion plate (48) through the rotating seat (46).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634734.XA CN115006651B (en) | 2022-06-07 | 2022-06-07 | Needle penetration prevention safety device for injection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634734.XA CN115006651B (en) | 2022-06-07 | 2022-06-07 | Needle penetration prevention safety device for injection device |
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| Publication Number | Publication Date |
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| CN115006651A CN115006651A (en) | 2022-09-06 |
| CN115006651B true CN115006651B (en) | 2024-04-16 |
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| CN202210634734.XA Active CN115006651B (en) | 2022-06-07 | 2022-06-07 | Needle penetration prevention safety device for injection device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205287133U (en) * | 2015-12-28 | 2016-06-08 | 刘红梅 | Take safe syringe of retractable needle greatest service ability |
| CN110917447A (en) * | 2019-12-31 | 2020-03-27 | 江苏苏云医疗器材有限公司 | Telescopic anti-acupuncture injection needle |
| CN213030922U (en) * | 2020-06-17 | 2021-04-23 | 闫文军 | Veterinary syringe |
| CN213284972U (en) * | 2020-07-30 | 2021-05-28 | 东阳市人民医院 | Syringe for endocrinology department |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6616639B2 (en) * | 1998-04-17 | 2003-09-09 | Becton, Dickinson And Company | Safety shield system for syringes |
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2022
- 2022-06-07 CN CN202210634734.XA patent/CN115006651B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205287133U (en) * | 2015-12-28 | 2016-06-08 | 刘红梅 | Take safe syringe of retractable needle greatest service ability |
| CN110917447A (en) * | 2019-12-31 | 2020-03-27 | 江苏苏云医疗器材有限公司 | Telescopic anti-acupuncture injection needle |
| CN213030922U (en) * | 2020-06-17 | 2021-04-23 | 闫文军 | Veterinary syringe |
| CN213284972U (en) * | 2020-07-30 | 2021-05-28 | 东阳市人民医院 | Syringe for endocrinology department |
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| CN115006651A (en) | 2022-09-06 |
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