CN107252512B - A kind of gas-driven needle-less syringe - Google Patents
A kind of gas-driven needle-less syringe Download PDFInfo
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- CN107252512B CN107252512B CN201710455421.7A CN201710455421A CN107252512B CN 107252512 B CN107252512 B CN 107252512B CN 201710455421 A CN201710455421 A CN 201710455421A CN 107252512 B CN107252512 B CN 107252512B
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- housing
- chamber
- medicine
- gas
- spring
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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
- A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
-
- 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
Abstract
The invention provides a kind of gas-driven needle-less syringe, belong to technical field of medical instruments, it includes housing, weight, spring one and limiting stand are set in housing, the inner chamber of housing is divided into pressurizing chamber and replys chamber by hammer body, pressurizing chamber connects with pressurized air conduit, reply chamber and connected with replying air flue, spring two, exhaust passage and sliding block one are set in the inner chamber of limiting stand, the side wall of housing sets injection switch, reply intracavitary and sliding block two is set, set medicine bar to connect part inside the front end of housing, medicine bar connects part and is connected through control medicine knob and ampoule bottle.Structure of the present invention is novel, reasonable in design, using Pneumatic Pressure principle, so that pressure value is able to maintain that in the OK range of injection pressure use is safer, noninvasive injection is realized, pain can be eliminated, be substantially reduced damage, and be convenient to operating with for general amateur medical personnel.
Description
Technical field
The invention belongs to technical field of medical instruments, and in particular to a kind of gas-driven needle-less syringe.
Background technology
Needleless injection refers to force medicament from micro- using instantaneous pressure caused by mechanical device (such as spring or gases at high pressure)
Extruded in pore, formed high-pressure jet, the high representative value of the effluxvelocity is 100 ~ 200m/s, make medicament readily penetrate through human body or
Animal skin, reach drug absorption optimal site.
Relative to traditional hypodermic injection, Needleless injection is a kind of brand-new injection system, has painless, drug absorption
It is good, easy to operate, eliminate many advantages, such as cross-infection.Domestic business needleless injector generally existing cost is high, injection
It is unstable, the problems such as vibration noise is big, extensive popularization and application can not be realized all the time, it is therefore necessary to existing needleless injector
Structure optimization is carried out, accomplishes it rational in infrastructure, it is easy to use.
Publication No. CN106139326 A patent provides a kind of Needleless injection system, belongs to medical instruments field.Its
Including injecting systems, described injecting systems include push rod, and mechanical energy storing device is installed on push rod；One end of push rod is connected to
Excite the locking excitation apparatus of push rod, other end connection consumptive material.The inventive structure is reasonable, easy to use, and decoction is extracted and added
Pressure injection, which is penetrated, to be merged, compact-sized, is easy to patient to carry with.The invention vasopressing injection principle is：Pass through pressuring machine
Structure drives pushrod movement, and decoction is completed while pushrod movement and is extracted and to exciting the pressurization of spring；By spring, excite and push away platform
Promotion make push rod depart from clips steel ball, push rod is released in the presence of spring is excited, so complete decoction injection.
Publication No. CN106693120A patent provides a kind of rod-pulling type needleless injector, when carrying out drug injection
Not by syringe needle, using high-pressure jet principle, decoction is set to form thinner liquid flow, moment penetrates skin and reached subcutaneously.Due to
The change of principle is injected, decoction is in subcutaneous Dispersed precipitate, and onset time, faster drug absorption rate was higher.The device is by housing, bullet
Spring, pressurization pull bar, retaining mechanism, excite hammer, afterbody switch and fixing axle composition.The invention is based on lever principle, gently pulls open
Pressurize pull bar, and pressurization pull bar extruding excites hammer, locking mechanism and spring above, and when spring contraction to specified location, (pressure can
Up to 150N), then by afterbody switch locking, close pressure rod, complete to inject immediately by lower tail switch.The invention is produced using spring
Raw instantaneous high pressure, strength is uneven, and injection is unstable, can produce pain.
The content of the invention
The technical problems to be solved by the invention are, in view of the shortcomings of the prior art, there is provided a kind of gas-driven needle-less syringe,
It is rational in infrastructure, it is easy to use, noninvasive injection is realized, pain can be eliminated, be substantially reduced damage, and is convenient to general amateur doctor
Shield personnel's operates with.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of gas-driven needle-less syringe, including housing, the housing is interior to set weight, spring one and limiting stand,
The weight includes hammer body and hammer handle, and the inner chamber wall configuration of the side profile of the hammer body and the housing is kissed
Close, the inner chamber of the housing is divided into pressurizing chamber and replys chamber by the hammer body, and the pressurizing chamber connects with pressurized air conduit, described
Reply chamber and connected with replying air flue,
One end of the spring one is set in the outside of the hammer handle, and the other end is connected to the intracavity bottom of the housing,
One end of the limiting stand is connected with the intracavity bottom of the housing, and spring is set in the inner chamber of the limiting stand
2nd, exhaust passage and sliding block one, one end of the spring two are connected with the intracavity bottom of the housing, and the other end is towards the cunning
Block one；
The side wall of the housing sets injection switch, and the injection switch puts in the inner chamber of the housing, with described in control
The direction of motion of hammer body,
The reply intracavitary sets sliding block two, and the side profile of the sliding block two is kissed with the inner chamber wall configuration of the housing
Close,
Medicine bar is set to connect part inside the front end of the housing, the bar portion that the medicine bar connects part passes through control medicine knob and ampoule bottle
Medicine bar be connected, it is described control medicine knob be connected with the housing into rotation, with realization control medicine knob the housing axis
Moved on direction.
Preferably, the exhaust passage is to be embedded the blast pipe in the limiting stand internal chamber wall, or is arranged on described spacing
The groove of platform internal chamber wall.
Preferably, slide switch is set on the housing, air guide channel and steam vent are set on the slide switch, it is described
Air guide channel connects the pressurized air conduit or reply air flue with main airway.
Preferably, the injection switch includes spring three, limited block and sliding handle, the first end face connection institute of the limited block
Spring three is stated, the second end face of the limited block sets projection, and the raised one side towards the pressurizing chamber is vertical surface, and
Form right angle with the second end face of the limited block, the raised one side towards the reply chamber is cambered surface, and with the limit
The round and smooth connection in side of position block, the sliding handle are connected by chute with the spring three.
Preferably, the medicine bar, which connects part, includes the bar portion and the first end disjunctor block connected vertically with the bar portion,
Second end of the bar portion has the connector coordinated with the medicine bar of ampoule bottle, and the bar portion is matched somebody with somebody with the control medicine knob gap
Close.
Preferably, connecting portion, one end of the connecting portion and the front end of the housing are set inside the front end of the housing
Mouth integral type connection.
Preferably, the control medicine knob includes knob and the cooperation rotating part being connected with the knob, described to coordinate rotation
Portion is threadedly coupled with the connecting portion, and the surface of the housing caves inward, and exposes the knob.
A kind of application method of above-mentioned gas-driven needle-less syringe, comprises the following steps：
Step S1：Gas is passed through reply intracavitary by reply air flue, the pressure for replying intracavitary gradually increases, and weight is in pressure
In the presence of move to pressurization cavity direction, and force in spring one and make its compression, when weight moves to injection to the cavity direction that pressurizes
During switch, injection switch is jacked up, and continues to move to pressurization cavity direction, until reaching the opposite side of injection switch, is now noted
Penetrate switch to set back, close and reply air flue, initial Recovery Process is completed；
Step S2：Gas is passed through in pressurizing chamber by pressurized air conduit, at the same time, opens and replys air flue, make reply intracavitary
Gas discharge, continue to be passed through gas into pressurizing chamber, the pressure in pressurizing chamber gradually increases, limitation of the weight in injection switch
Lower to keep in situ motionless, when the pressure of pressurizing chamber is increased to more than certain value, sliding block one moves to the direction of spring two, compresses bullet
Spring two until exhaust passage connected with pressurizing chamber, discharge pressurizing chamber inside points gas, pressurizing chamber internal pressure power is maintained at certain value,
Close pressurized air conduit and reply air flue, pressure process is completed；
Step S3：Ampoule bottle one end is screwed into the medicine bar in housing by medicine bar to connect on part, other end installation takes
Medicine part, rotation control medicine button, make it to cavity direction movement is replied, until contact medicine bar connects part and drives medicine bar to connect part to reply
Cavity direction moves, and so as to which decoction is sucked in ampoule bottle, after decoction is drawn, reversely rotates control medicine knob, makes it to opposite
Direction moves to setting position, and process of getting it filled is completed；
Step S4：Part of getting it filled is removed, the injection port of ampoule bottle is directed at injection site, presses injection switch, weight exists
Quickly moved to reply cavity direction in the presence of pressurization cavity pressure, promote the jerky motion of sliding block two, sliding block two promotes medicine bar to connect
Part and medicine bar rapidly move to injection port direction, and most decoction is injected to injection site from the injection port of ampoule bottle at last, injects
Journey terminates.
Compared with prior art, beneficial effects of the present invention are as follows：
1）Pass through above-mentioned technical proposal of the present invention provides a kind of gas-driven needle-less syringe, rational in infrastructure, easy to use, real
Existing noninvasive injection, can eliminate pain, be substantially reduced damage, and be convenient to operating with for general amateur medical personnel.This
Invention syringe uses gas pressurized, continuous to realize pressurization, get it filled and injection operation.The housing cavity of syringe of the present invention is by weight
Hammer is separated into pressurizing chamber and replys chamber, and pressurizing chamber connects with pressurized air conduit, for being passed through gas-pressurized, makes up to injection pressure
Value, that is, form the condition of high voltage needed for Needleless injection；Reply chamber to be used to aid in weight to complete to move back and forth, and reply intracavitary and set
There is sliding block two, sliding block two is replying intracavitary slidably, so when reply chamber connects with replying air flue interruption, replys chamber and just locates
In sealing state, provided safeguard to reply the sealing of chamber；In addition, control pressurizing chamber pressure value is additionally provided with pressurizing chamber maintains note
The component of injection pressure value, the component include spring two, exhaust passage and the sliding block one set in limiting stand, and limiting stand,
When the pressure value of pressurizing chamber exceedes injection pressure force value, sliding block one slides in limiting stand makes exhaust passage be connected with pressurizing chamber, real
The pressure release of existing pressurizing chamber, when pressure release to injection pressure force value, sliding block one slides round about, and exhaust passage connects with pressurizing chamber
Interrupt, so as to keep the pressure of pressurizing chamber to be in stable state, ensure the stability of injection effect；To realize that manual control pressurizes
The release of cavity pressure, the present invention are provided with injection switch on housing, and when pressing injection switch, the stop of weight releases,
Immediately to injection direction jerky motion under high pressure effect；Got it filled and injection operation to realize, the present invention is also in the front end of housing
Internal to connect part provided with medicine bar, medicine bar connects the bar portion of part through control medicine knob, and the medicine bar of end and ampoule bottle connects, control medicine rotation
Button is connected with housing into rotation, and so, the rotation by controlling medicine knob realizes that it is moved on the axis direction of housing, so as to drive
Medicine bar connects part motion, finally promotes the medicine bar of ampoule bottle to realize by medicine bar connecting rod and gets it filled and injection operation.
2）For ease of the connection and closing of control pressurizing chamber and pressurized gas source, and reply chamber and pressurized gas source or steam vent
Connection and closing, the present invention sets slide switch on housing, air guide channel and steam vent, institute set on the slide switch
Air guide channel is stated to connect the pressurized air conduit or reply air flue with main airway.Specifically, the slide switch sets three gears.
When slide switch upward sliding, main airway connects with replying air flue, and gas, which enters, replys intracavitary, is replied with increase in air flue
Pressure；When slide switch slide downward, main airway connects with pressurized air conduit, and gas enters in pressurizing chamber, to increase pressurizing chamber
Interior pressure, meanwhile, the steam vent on slide switch connects with replying air flue, and the gas for replying intracavitary passes sequentially through reply air flue
With exhaust outlet exhaustjet device, the pressure for replying intracavitary is gradually brought to original state；When slide switch slides to centre position,
Main airway and pressurized air conduit, and main airway are in closed mode with replying air flue.By above-mentioned setting, operator i.e. can
Easily the pressure state of pressurizing chamber and reply chamber is controlled, saves the operating time, improves operating efficiency.
3) present invention injection switch 12 includes spring 3 22, limited block 23 and sliding handle 24, and the one end of spring three is fixed on injection
On the housing of device, the other end connects the first end face and sliding handle of limited block respectively.The second end face of limited block sets projection, specifically
, the projection is preferably 1/4 spheroid, and cambered surface is towards chamber is replied, and plane is towards pressurizing chamber., can be in chute after sliding handle stress
Slidably, the chute is a groove being arranged on housing, and the groove causes sliding handle to be contacted with the surface of limited block, and main
Dynamic stretching with spring two or compress to respective direction is taken exercises, or passive stress stretching or compression spring two are done to respective direction
Motion.By above-mentioned setting, weight from reply chamber to pressurizing chamber during being moved, if contact limited block, can extrude limit
The projection of position block, compresses spring three, at the same time drives sliding handle also to be moved towards the compression direction of spring three, so that weight
Continue to move to pressurization cavity direction；As weight towards pressurization cavity direction continues to move, squeezing action of the weight to limited block
Disappear, limited block is just rapid under the elastic force effect of spring three to be recovered to original state, sliding handle motion is also driven, so as to limited block
Just stop that weight moves to cavity direction is replied.So, sliding sliding handle manually just can make the compression of spring two, and then control limited block
Pack up so that weight is able to move from pressurizing chamber to intracavitary is replied.
Structure of the present invention is novel, reasonable in design, using gas pressurized principle so that pressure value is able to maintain that in injection pressure
OK range in, use is safer, realizes noninvasive injection, can eliminate pain, be substantially reduced damage, and is convenient to general non-
Health care professional's operates with.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1：A kind of three-dimensional structure diagram of gas-driven needle-less syringe of the present invention；
Fig. 2：A kind of front view of gas-driven needle-less syringe of the present invention；
Fig. 3：Fig. 1 of the present invention top view；
Fig. 4：Fig. 1 of the present invention left view；
Fig. 5：Fig. 1 of the present invention A-A sectional views；
Fig. 6：Fig. 1 of the present invention B-B sectional views；
Fig. 7：Fig. 3 of the present invention C-C sectional views；
Fig. 8：Fig. 3 of the present invention D-D sectional views；
Fig. 9：The structural representation of limited block of the present invention；
Figure 10：Fig. 4 of the present invention E-E sectional views；
Figure 11：Medicine bar of the present invention connects the structural representation of part；
Wherein, 1- housings, the front port of 101- housings, 102- concave faces, 2- weights, 201- hammer bodies, 202- hammer handles, 3- bullets
Spring one, 4- limiting stands, 5- pressurizing chambers, 6- reply chambers, 7- pressurized air conduits, 8- reply air flues, 9- springs two, 10- exhaust passages,
11- sliding blocks one, the first end face of 1101- sliding blocks one, 12- injection switches, 13- sliding blocks two, 14- medicine bars connect part, 1401- bar portions,
1402- disjunctor blocks, 1403- connectors, 15- control medicine knobs, 1501- knobs, 1502- coordinate rotating part, 16- ampoule bottles, 17- medicines
Bar, 18- slide switches, 19- air guide channels, 20- steam vents, 21- main airways, 22- springs three, 23- limited blocks, 2301- are spacing
The first end face of block, the second end face of 2302- limited blocks, 2303- is raised, 24- sliding handles, 25- chutes, 26- connecting portions.
Embodiment
For a better understanding of the present invention, present disclosure, but this hair are further fairly set out with reference to embodiment
Bright protection content is not limited solely to the following examples.In the following description, give a large amount of concrete details so as to
More thorough understanding of the invention is provided.It will be apparent, however, to one skilled in the art that the present invention can be with
It is carried out without one or more of these details.
Refering to Fig. 1 ~ Fig. 6, a kind of gas-driven needle-less syringe, including housing 1, the housing is interior to set weight 2, spring 1
With limiting stand 4,
Refering to Fig. 5, the weight includes hammer body 201 and hammer handle 202, and the side profile of the hammer body is interior with the housing
Chamber wall configuration is coincide, and refering to Fig. 6, the inner chamber of the housing is divided into pressurizing chamber 5 and replys chamber 6 by the hammer body, described to add
Pressure chamber connects with pressurized air conduit 7, and the reply chamber connects with replying air flue 8,
One end of the spring one is set in the outside of the hammer handle, and the other end is connected to the intracavity bottom of the housing,
Refering to Fig. 5 ~ 6, one end of the limiting stand is connected with the intracavity bottom of the housing, in the inner chamber of the limiting stand
Spring 29, exhaust passage 10 and sliding block 1, one end of the spring two is set to be connected with the intracavity bottom of the housing, separately
One end connects the extraneous inner chamber with the limiting stand towards the sliding block one, the exhaust passage；
Refering to Fig. 7, the side wall of the housing sets injection switch 12, and the injection switch puts in the inner chamber of the housing,
To control the direction of motion of the hammer body,
Refering to Fig. 5 ~ 6, the reply intracavitary sets sliding block 2 13, and the side profile of the sliding block two is interior with the housing
Chamber wall configuration coincide,
Medicine bar is set to connect part 14 refering to Fig. 5, inside the front end of the housing, the bar portion 1401 that the medicine bar connects part passes through control
The medicine bar 17 of medicine knob 15 and ampoule bottle 16 is connected, and the control medicine knob is connected with the housing into rotation.
Refering to Fig. 6, in of the invention, pressurized air conduit 7 is arranged in the side wall of housing 1, one end connection source of the gas, other end connection
Pressurizing chamber；Reply air flue 8 to be arranged in the side wall of housing 1, chamber is replied in one end connection source of the gas, other end connection.When pressurizing chamber or
When replying chamber needs supercharging, source of the gas is connected, is passed through gas；When reply chamber needs to reply first pressing, source of the gas is interrupted, is made back
Multiple air flue connection is extraneous.
Refering to Fig. 6, in of the invention, the inner hollow of limiting stand 4 and one end connects with pressurizing chamber, the side profile of sliding block one
It is coincide with the inner chamber wall configuration of limiting stand, can the free movement in limiting stand.Original state is in pressurizing chamber（Not
Pressurization）When, sliding block one is in poised state, stops at limiting stand inner chamber and the connection end of pressurizing chamber, at this moment exhaust passage and limit
The connection of position platform inner chamber, pressurizing chamber are in sealing state；When pressurizing chamber is in persistent pressure state, and internal pressure exceedes injection
During pressure, the pressure balance that pressurizing chamber and limiting stand inner chamber that sliding block one is subject to are given is broken, and sliding block one is towards spacing
Platform internal motion, i.e., moved towards the direction of spring two, compression spring two, with the increase of pressurization cavity pressure, sliding block one continues
Compression spring two, exhaust passage is set to be connected with pressurizing chamber until the first end face 1101 of sliding block 1 moves to, in pressurizing chamber
Gas discharges, pressure reduce, sliding block one be under pressure chamber pressure value reduce, when the pressure value decreases below spring two
Elastic force when, sliding block one blocks exhaust passage, the connection of pressurizing chamber and exhaust passage is interrupted, pressurization to pressurization cavity direction movement
Chamber recovers sealing state.When the cavity pressure that pressurizes increaseds to over injection pressure again, repeat the above steps, so that pressurization
Cavity pressure is maintained in the range of injection pressure, ensures pressurization cavity pressure stability so that injection safety is higher, using more
Trust.
Refering to Fig. 5 ~ 6, in one particular embodiment of the present invention, the exhaust passage 10 is to be embedded in the limiting stand
The blast pipe of internal chamber wall；One end of the blast pipe is in communication with the outside, and the other end connects with the inner chamber of the limiting stand；
Or, the inner chamber that the exhaust passage 10 is the groove for being arranged on the limiting stand internal chamber wall, the groove and limiting stand
Connection, and extend the intracavity bottom of housing, it is in communication with the outside.
Refering to Fig. 7 ~ Fig. 9, in one particular embodiment of the present invention, the injection switch 12 includes spring 3 22, limit
Position block 23 and sliding handle 24, the first end face 2301 of the limited block 23 connect the spring 3 22, and the second of the limited block 23
End face 2302 sets projection 2303, and the raised one side towards the pressurizing chamber is vertical surface, and with the of the limited block
Biend forms right angle, and the raised one side towards the reply chamber is cambered surface, and with the round and smooth company in side of the limited block
Connect, the sliding handle is connected by chute 25 with the spring three.
The one end of spring three is fixed on the housing of syringe, and the other end connects the first end face and sliding handle of limited block respectively.
The second end face setting projection of limited block, specifically, the projection is preferably 1/4 spheroid, cambered surface adds towards chamber, plane direction is replied
Press chamber., can be in chute slidably after sliding handle stress, the chute is a groove being arranged on housing, and the groove makes
Sliding handle contacts with the surface of limited block, and actively taken exercises with the stretching or compress to respective direction of spring two, or passively by
Power is stretched or compression spring two is taken exercises to respective direction.
By above-mentioned setting, weight from reply chamber to pressurizing chamber during being moved, if contact limited block, can be extruded
The projection of limited block, spring three is compressed, at the same time drive sliding handle also to be moved towards the compression direction of spring three, so that weight
Hammer continues to move to pressurization cavity direction；As weight towards pressurization cavity direction continues to move, extruding of the weight to limited block is made
With disappearance, limited block is just rapid under the elastic force effect of spring three to be recovered to original state, sliding handle motion is also driven, so as to spacing
Block just stops that weight moves to cavity direction is replied.So, sliding sliding handle manually just can make the compression of spring two, and then control spacing
Block is packed up so that weight is able to move from pressurizing chamber to intracavitary is replied.
Refering to Fig. 5 ~ Fig. 6 and Figure 11, in one particular embodiment of the present invention, the medicine bar, which connects part 14, includes the bar
Portion 1401 and the first end disjunctor block 1402 connected vertically with the bar portion, the second end of the bar portion are set and ampoule bottle 16
The connector 1403 that coordinates of medicine bar 17, the bar portion coordinates with the control medicine knob gap.
Wherein, bar portion 1401 can be slided along its major axes orientation in control medicine knob 15, and control medicine knob is rotated by exerting a force,
Contact with disjunctor block, moved so as to drive medicine bar to connect part towards cavity direction is replied.
Ampoule bottle used in the present invention is the special ampoule bottle of needleless injector, such as：It is beneficial prompt（INJEX）Needleless injector is special
Ampoule bottle, it can be bought and obtained by market, is not construed as limiting the invention.According to the structure of such ampoule bottle, art technology
Personnel can improve the structure that medicine bar connects part in the case where knowing basic structure and action principle of the present invention by routine techniques,
Medicine bar is set to connect the medicine bar mating connection of the connector and ampoule bottle of part bar portion.
Refering to Fig. 5 ~ Fig. 6, in one particular embodiment of the present invention, connecting portion is set inside the front end of the housing 1
26, one end of the connecting portion is connected with the integral type of front port 101 of the housing.The control medicine knob 15 includes knob 1501
The cooperation rotating part 1502 being connected with the knob, the cooperation rotating part are threadedly coupled with the connecting portion, the housing
Surface cave inward, expose the knob.
Wherein, the cooperation rotating part is threadedly coupled with the connecting portion, specifically, connecting portion sets external screw thread, is coordinated
Rotating part sets internal thread, and external screw thread is connected with screw-internal thread fit；
Refering to Fig. 1 ~ Fig. 3, the surface of the housing caves inward, formed concave face 102, expose knob, with exert a force into
Row rotation；
Medicine knob 15 is controlled by turn knob 1501, the convert rotational motion of knob is transported for the overall straight line of control medicine knob
It is dynamic, even if control medicine knob integrally moves along the axis direction of housing.
The invention provides a kind of application method of above-mentioned gas-driven needle-less syringe, comprise the following steps：
Step S1：Gas is passed through reply intracavitary by reply air flue, the pressure for replying intracavitary gradually increases, and weight is in pressure
In the presence of move to pressurization cavity direction, and force in spring one and make its compression, when weight moves to injection to the cavity direction that pressurizes
During switch, injection switch is jacked up, and continues to move to pressurization cavity direction, until reaching the opposite side of injection switch, is now noted
Penetrate switch to set back, close and reply air flue, initial Recovery Process is completed；
Step S2：Gas is passed through in pressurizing chamber by pressurized air conduit, at the same time, opens and replys air flue, make reply intracavitary
Gas discharge, continue to be passed through gas into pressurizing chamber, the pressure in pressurizing chamber gradually increases, limitation of the weight in injection switch
Lower to keep in situ motionless, when the pressure of pressurizing chamber is increased to more than certain value, sliding block one moves to the direction of spring two, compresses bullet
Spring two until exhaust passage connected with pressurizing chamber, discharge pressurizing chamber inside points gas, pressurizing chamber internal pressure power is maintained at certain value,
Close pressurized air conduit and reply air flue, pressure process is completed；
Step S3：Ampoule bottle one end is screwed into the medicine bar in housing by medicine bar to connect on part, other end installation takes
Medicine part, rotation control medicine button, make it to cavity direction movement is replied, until contact medicine bar connects part and drives medicine bar to connect part to reply
Cavity direction moves, and so as to which decoction is sucked in ampoule bottle, after decoction is drawn, reversely rotates control medicine knob, makes it to opposite
Direction moves to setting position, and process of getting it filled is completed；
Step S4：Part of getting it filled is removed, the injection port of ampoule bottle is directed at injection site, presses injection switch, weight exists
Quickly moved to reply cavity direction in the presence of pressurization cavity pressure, promote the jerky motion of sliding block two, sliding block two promotes medicine bar to connect
Part and medicine bar rapidly move to injection port direction, and most decoction is injected to injection site from the injection port of ampoule bottle at last, injects
Journey terminates.
The above-mentioned application method of the present invention, in step S2, when the pressure of pressurizing chamber is increased to more than certain value, the certain value
Pointed injection pressure value, i.e., decoction is injected to injection site by ampoule bottle, and penetrates the minimum pressure values of recipient's skin.
The above-mentioned application method of the present invention, in step S3, control medicine knob is reversely rotated, it is moved to setting round about
Position, the setting position are to accuse medicine button in preoperative initial position of getting it filled, that is, control medicine knob from reply chamber to housing
The maximum position of nose motion.Get it filled after end, control medicine knob is recovered to initial position, so when injecting generation, medicine bar
Even impetus of the part by sliding block two, you can unhinderedly move to injection port direction, and then in promotion ampoule bottle medicine bar to note
Direction motion is penetrated, decoction is quickly extruded.
Embodiment 2
Gas-driven needle-less syringe described by the present embodiment, it is the improvement carried out on the basis of embodiment 1, wherein：
Refering to Figure 10, slide switch 18 is set on the housing, air guide channel 19 and exhaust are set on the slide switch
Hole 20, the air guide channel connect the pressurized air conduit 7 or reply air flue 8 with main airway 21.
Refering to Figure 10, source of the gas access main airway 21.
Slide switch controls main airway with pressurized air conduit or replys the connection and closing of air flue, and replys air flue and exhaust
The connection and closing in hole.
The slide switch sets three gears.When slide switch slides to a side, main airway connects with replying air flue, gas
Body, which enters, replys intracavitary, and the pressure in air flue is replied with increase；When slide switch slides to the opposing party, main airway and pressurization gas
Road connects, and gas enters in pressurizing chamber, to increase the pressure in pressurizing chamber, meanwhile, the steam vent on slide switch is with replying gas
Road connect, reply intracavitary gas pass sequentially through reply air flue and exhaust outlet exhaustjet device, the pressure for replying intracavitary it is gradually extensive
Again to original state；When slide switch slides to centre position, main airway and pressurized air conduit, and main airway are equal with replying air flue
It is closed.
Present invention also offers a kind of application method of above-mentioned gas-driven needle-less syringe, comprise the following steps：
Step S1：Slide switch is slided to a side, for connection main airway with replying air flue, gas, which enters, replys intracavitary, returns
The pressure of multiple intracavitary gradually increases, and weight moves to pressurization cavity direction under the effect of the pressure, and forces in spring one and make its pressure
Contracting, when weight moves to injection switch to pressurization cavity direction, injection switch is jacked up, and continues to move to pressurization cavity direction,
Until reaching the opposite side of injection switch, now inject switch and set back, slide switch is slided into centre position, closes main gas
Road and the connection for replying air flue, initial Recovery Process are completed；
Step S2：Slide switch is slided to the opposing party, connects main airway and pressurized air conduit, gas enters in pressurizing chamber,
Meanwhile the steam vent on slide switch connects with replying air flue, the gas for replying intracavitary passes sequentially through reply air flue and exhaust outlet
Exhaustjet device, continue to be passed through gas into pressurizing chamber, the pressure in pressurizing chamber gradually increases, limitation of the weight in injection switch
Lower to keep in situ motionless, when the pressure of pressurizing chamber is increased to more than certain value, sliding block one moves to the direction of spring two, compresses bullet
Spring two until exhaust passage connected with pressurizing chamber, discharge pressurizing chamber inside points gas, pressurizing chamber internal pressure power is maintained at certain value,
Slide switch is slided into centre position, main airway and pressurized air conduit, and connection of the main airway with replying air flue is closed, pressurizeed
Journey is completed；
Step S3：Ampoule bottle one end is screwed into the medicine bar in housing by medicine bar to connect on part, other end installation takes
Medicine part, rotation control medicine button, make it to cavity direction movement is replied, until contact medicine bar connects part and drives medicine bar to connect part to reply
Cavity direction moves, and so as to which decoction is sucked in ampoule bottle, after decoction is drawn, reversely rotates control medicine knob, makes it to opposite
Direction moves to setting position, and process of getting it filled is completed；
Step S4：Part of getting it filled is removed, the injection port of ampoule bottle is directed at injection site, presses injection switch, weight exists
Quickly moved to reply cavity direction in the presence of pressurization cavity pressure, promote the jerky motion of sliding block two, sliding block two promotes medicine bar to connect
Part and medicine bar rapidly move to injection port direction, and most decoction is injected to injection site from the injection port of ampoule bottle at last, injects
Journey terminates.
The above-mentioned application method of the present invention, in step S2, when the pressure of pressurizing chamber is increased to more than certain value, the certain value
Pointed injection pressure value, i.e., decoction is injected to injection site by ampoule bottle, and penetrates the minimum pressure values of recipient's skin.
If remaining decoction in ampoule bottle be present, above-mentioned steps are repeated.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common
Other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention
Spirit and scope, all should cover among scope of the presently claimed invention.
Claims (7)
- A kind of 1. gas-driven needle-less syringe, it is characterised in that：Including housing（1）, the housing is interior to set weight（2）, spring one （3）And limiting stand（4）, the weight includes hammer body（201）And hammer handle（202）, the hammer body（201）Side profile with it is described Housing（1）Inner chamber wall configuration coincide, the hammer body（201）By the housing（1）Inner chamber be divided into pressurizing chamber（5）With return Multiple chamber（6）, the pressurizing chamber（5）With pressurized air conduit（7）Connection, the reply chamber（6）With replying air flue（8）Connection, the bullet Spring one（3）One end be set in the hammer handle（202）Outside, the other end is connected to the housing（1）Intracavity bottom, it is described Limiting stand（4）One end and the housing（1）Intracavity bottom connection, the limiting stand（4）Inner chamber in set spring two （9）, exhaust passage（10）With sliding block one（11）, the spring two（9）One end and the housing（1）Intracavity bottom connection, The other end is towards the sliding block one（11）；The housing（1）Side wall set injection switch（12）, the injection switch（12）Stretch Enter the housing（1）Inner chamber, to control the hammer body（201）The direction of motion, the reply chamber（6）Interior setting sliding block two （13）, the sliding block two（13）Side profile and the housing（1）Inner chamber wall configuration coincide, the housing（01）Before End is internal to set medicine bar to connect part（14）, the medicine bar connects part（14）Bar portion（1401）Through control medicine knob（15）With ampoule bottle （16）Medicine bar（17）It is connected, the control medicine knob（15）With the housing（1）Rotation connection, medicine knob is controlled to realize （15）In the housing（1）Axis direction on move.
- A kind of 2. gas-driven needle-less syringe according to claim 1, it is characterised in that：The exhaust passage（10）To be embedded In the limiting stand（4）The blast pipe of internal chamber wall, or it is arranged on the limiting stand（4）The groove of internal chamber wall.
- A kind of 3. gas-driven needle-less syringe according to claim 1, it is characterised in that：The housing（1）Upper set is slided Switch（18）, the slide switch（18）Upper setting air guide channel（19）And steam vent（20）, the air guide channel（19）By institute State pressurized air conduit（7）Or reply air flue（8）With main airway（21）Connection.
- A kind of 4. gas-driven needle-less syringe according to claim 1, it is characterised in that：The injection switch（12）Including bullet Spring three（22）, limited block（23）And sliding handle（24）, the limited block（23）First end face（2301）Connect the spring three （22）, the second end face of the limited block（2302）Set raised（2303）, the projection（2303）Towards the pressurizing chamber（5） One side be vertical surface, and with the limited block（23）Second end face formed right angle, the projection（2303）Returned towards described The one side of multiple chamber is cambered surface, and with the limited block（23）The round and smooth connection in side, the sliding handle（24）Pass through chute（25）With The spring three（22）Connection.
- A kind of 5. gas-driven needle-less syringe according to claim 1, it is characterised in that：The medicine bar connects part（14）Including institute State bar portion（1401）With with the bar portion（1401）First end disjunctor block connected vertically（1402）, the bar portion（1401）'s Second end has and ampoule bottle（16）Medicine bar（17）The connector of cooperation（1403）, the bar portion（1401）With the control medicine rotation Button（15）Gap coordinates.
- A kind of 6. gas-driven needle-less syringe according to claim 1, it is characterised in that：The housing（1）Front end inside Connecting portion is set（26）, the connecting portion（26）One end and the housing（101）Front port integral type connection.
- A kind of 7. gas-driven needle-less syringe according to claim 1, it is characterised in that：The control medicine knob（15）Including rotation Button（1501）With with the knob（1501）The cooperation rotating part of connection（1502）, the cooperation rotating part（1502）With the company Socket part（26）Threaded connection, the housing（1）Surface cave inward, make the knob（1501）Expose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455421.7A CN107252512B (en) | 2017-06-16 | 2017-06-16 | A kind of gas-driven needle-less syringe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710455421.7A CN107252512B (en) | 2017-06-16 | 2017-06-16 | A kind of gas-driven needle-less syringe |
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| CN107252512A CN107252512A (en) | 2017-10-17 |
| CN107252512B true CN107252512B (en) | 2018-03-13 |
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| CN201710455421.7A Active CN107252512B (en) | 2017-06-16 | 2017-06-16 | A kind of gas-driven needle-less syringe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110124157B (en) * | 2019-06-03 | 2024-02-20 | 江苏丞宇米特医疗科技有限公司 | Double pressure needleless injector |
| CN117379643A (en) * | 2023-11-17 | 2024-01-12 | 青岛力腾医药科技有限公司 | Deoxycholic acid injection device |
Citations (3)
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|---|---|---|---|---|
| US5480381A (en) * | 1991-08-23 | 1996-01-02 | Weston Medical Limited | Needle-less injector |
| CN106139326A (en) * | 2016-07-30 | 2016-11-23 | 山东中保康医疗器具有限公司 | needleless injection system |
| CN106693120A (en) * | 2016-12-27 | 2017-05-24 | 元拓工业设计咨询（天津）有限公司 | Pull rod type needleless injector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024656A (en) * | 1988-08-30 | 1991-06-18 | Injet Medical Products, Inc. | Gas-pressure-regulated needleless injection system |
| US5730723A (en) * | 1995-10-10 | 1998-03-24 | Visionary Medical Products Corporation, Inc. | Gas pressured needle-less injection device and method |
| US6080130A (en) * | 1998-11-14 | 2000-06-27 | Castellano; Thomas P. | Gas power source for a needle-less injector |
| GB9605690D0 (en) * | 1996-03-19 | 1996-05-22 | Oxford Biosciences Ltd | Particle delivery |
| GB9818110D0 (en) * | 1998-08-19 | 1998-10-14 | Weston Medical Ltd | Needleless injectors and other devices |
| US20070185437A1 (en) * | 2006-02-03 | 2007-08-09 | Boris Goldenberg | Needle-free syringe and the injection procedure |
| DE102007008369A1 (en) * | 2007-02-16 | 2008-08-21 | Lts Lohmann Therapie-Systeme Ag | Disposable injector with at least one central tie rod |
| AU2012205735B8 (en) * | 2011-01-10 | 2014-09-18 | Zogenix, Inc. | Needle free injectors |
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- 2017-06-16 CN CN201710455421.7A patent/CN107252512B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480381A (en) * | 1991-08-23 | 1996-01-02 | Weston Medical Limited | Needle-less injector |
| CN106139326A (en) * | 2016-07-30 | 2016-11-23 | 山东中保康医疗器具有限公司 | needleless injection system |
| CN106693120A (en) * | 2016-12-27 | 2017-05-24 | 元拓工业设计咨询（天津）有限公司 | Pull rod type needleless injector |
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