CN108969841A - Single mechanical self-service syringe pump is set - Google Patents
Single mechanical self-service syringe pump is set Download PDFInfo
- Publication number
- CN108969841A CN108969841A CN201810555467.0A CN201810555467A CN108969841A CN 108969841 A CN108969841 A CN 108969841A CN 201810555467 A CN201810555467 A CN 201810555467A CN 108969841 A CN108969841 A CN 108969841A
- Authority
- CN
- China
- Prior art keywords
- chamber
- movable block
- syringe
- injection
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/14216—Reciprocating piston type
- A61M5/1422—Reciprocating piston type with double acting or multiple pistons
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
- A61M5/1454—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons spring-actuated, e.g. by a clockwork
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of single mechanical self-service syringe pumps, including injection pumpback device and on-off device；The injection recover includes shell, injection mechanism and pumpback mechanism；The piston rod for being equipped in plunger shaft and plunger shaft and being adapted to plunger shaft is equipped in the shell；The injection mechanism is installed in the mounting groove of the shell, for squeezing the syringe being mounted on injection mechanism automatically；The pumpback mechanism is installed in the installation cavity of shell, for driving the piston rod mobile；Connection is connected with two input terminals of the on-off device respectively in syringe and plunger shaft on the injection mechanism, and the on-off of the output end of syringe and on-off device, and the on-off of control plunger shaft and the output end of on-off device are controlled by on-off device.The present invention reduces more people's compounding practices in surgical procedure, improve the ability of operating doctor one man operation, shorten operating time, mitigate the work load of medical worker.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of single mechanical self-service syringe pump.
Background technique
Past clinically punctures mostly with the blind spy operation of anatomic landmark, there is very big imprevision to curative effect and complication
Property, in recent years, the introducing of the various supplementary means such as localization by ultrasonic and nerve electric stimulation instrument can greatly accurate curative effect and reduction
Complication.
But when carrying out puncturing operation, operating doctor generally requires assistant completion, and especially ultrasonic wave added is real-time
When positioning, while operating doctor needs hand-held ultrasonic probe positioning, in addition a handwritten visiting card enters puncture needle arrival designated position, this
Shi Wufa frees hand to control drug injection and pumpback, and assistant is needed to complete.Usually returned before injecting drug
It takes out and is not punctured to blood vessel, vacancy etc. elsewhere to verify.In addition, if in puncture process, need to inject a little medical fluid with
When positioning puncture needle needle point, it is even more impossible to complete independentlies for operating doctor.
One people of operating doctor can be assisted to complete pumpback and injection without corresponding equipment currently on the market, performed the operation
Cause operating time long due to completion in journey because needing assistant to cooperate, and operating doctor and assistant also need certain tacit agreement, match
It closes and bad also will affect smoothly completing for operation.It provides with assistant and also will increase the personnel amount of hospital, be unfavorable for saving manpower.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of single mechanical self-service syringe pump, to reduce surgical procedure
In more people's compounding practices, improve the ability of operating doctor one man operation, shorten operating time, the work for mitigating medical worker is negative
Load.
The present invention provides a kind of single mechanical self-service syringe pump, including injection pumpback device and on-off device；
The injection recover includes shell, injection mechanism and pumpback mechanism；Plunger shaft and work are equipped in the shell
It fills in intracavitary equipped with the piston rod being adapted to plunger shaft；
The injection mechanism is installed in the mounting groove of the shell, for squeezing the note being mounted on injection mechanism automatically
Emitter；The pumpback mechanism is installed in the installation cavity of shell, for driving the piston rod mobile；
Connection is connected with two input terminals of the on-off device respectively in syringe and plunger shaft on the injection mechanism, leads to
Cross the on-off of the output end of on-off device control syringe and on-off device, and control plunger shaft and on-off device output end it is logical
It is disconnected.
Preferably, the injection mechanism includes the first guide rod, fixed block and movable block；One end of first guide rod is fixed
In the mounting groove side wall and place the first guide rod along mounting groove, the other end of the first guide rod and the fixed block are solid
Fixed connection；The movable block is set on the first guide rod, and the first elastic component is equipped between movable block and fixed block；Syringe
Be folded between fixed block and movable block, first elastic component restoring force effect under make movable block push syringe to
Automatically inject syringe.
The syringe for filling medical fluid is placed on injection mechanism, the first elastic component has saved potential energy at this time, when injection pipeline
After connection, syringe automatically injects under the restoring force effect of the first elastic component, instead of the compounding practice of assistant, operating doctor
More mastering capabilities are obtained, surgical procedure is facilitated.
Preferably, the bottom wall of the mounting groove is equipped with bar shaped ratchet, and movable block is equipped with pawl, passes through bar shaped ratchet and pawl
Cooperation prevents movable block mobile toward the direction of fixed block.
It is mobile using the preceding direction by movable block far from fixed block, movable block is locked by bar shaped ratchet and pawl at this time,
Prevent movable block sliding from going back.
Preferably, the side of the movable block is equipped with card for blocking the push rod of syringe, the card with it is described
Fixed block is opposite；The movable block is equipped with blind hole, and the open end of blind hole is opposite with the card；The pawl swing is installed on work
In motion block, and the lower end of pawl is stretched out contact to lock movable block with the bar shaped ratchet down, and the upper end of pawl extends
In to the blind hole；It is equipped in the blind hole and dials item, blind hole is stretched out in the one end for dialling item, dials the other end of item and the upper end of pawl
Contact, is slided in blind hole by promotion group item and pawl is swung around the rotation axis of pawl, divides pawl and bar shaped ratchet
From to unlock movable block.
The end of push rod is equipped with the circular baffle for increasing contact area, since the baffle has thickness, when the gear of push rod
It will be squeezed while piece is stuck on card and dial item toward the sliding of blind hole direction, and interlocked pawl and separated with bar shaped ratchet, movable block unlock
After facilitate syringe to be stuck between fixed block and movable block, while also facilitating the first elastic component accumulation of energy.
Preferably, the fixed block is equipped with card slot, for placing the injection head of syringe.
The width of card slot is adapted with the diameter of injection head, and syringe is tightly further stuck in fixed block by card slot
Between movable block.
Preferably, the pumpback mechanism includes the second guide rod and sliding sleeve；The peace is fixed in one end of second guide rod
The side wall behave affectedly simultaneously places the first guide rod along installation cavity, and the other end of the second guide rod is opposite with the piston rod；It is described
Sliding sleeve is set on the second guide rod and is equipped with the second elastic component between sliding sleeve and the side wall of installation cavity；Sliding sleeve is opposite with piston rod
One side be equipped with self-locking hole, the sliding sleeve is moved along the second guide rod and stretching the second elastic component is inserted into the end of piston rod
In the self-locking hole, slide piston rod in plunger shaft to generate suction by the restoring force of the second elastic component.
Using preceding sliding sleeve in conjunction with piston rod, the second elastic component has been stretched at this time and has stored potential energy, when pumpback pipeline connects
After logical, the restoring force effect drop-down piston bar for sliding over the second elastic component generates suction, so that the cooperation instead of assistant is grasped
Make, facilitates surgical procedure.
Preferably, be equipped with hangnail in the self-locking hole, the end of the piston rod be equipped with cone and the tip of cone with
Self-locking hole is opposite.
After the cone insertion self-locking hole of piston rod, prevent piston rod from separating with sliding sleeve by hangnail, this equipment is disposable
Product, and the pumpback operation in surgical procedure is that verification puncture needle is not inserted into blood vessel, vacancy etc. elsewhere, pumpback process
There is no air, blood or other liquid to occur, therefore the distance of piston rod pumpback is small, the suction generated in plunger shaft is enough
A surgical procedure is completed, piston rod is combined tightly with sliding sleeve by the design of self-locking hole, can not separate.
Preferably, the side wall of the sliding sleeve is equipped with push rod, and the end of push rod is equipped with handle；The installation cavity is described equipped with making
The opening that push rod stretches out.
Preferably, first chamber, second chamber and third chamber are equipped in the on-off device, wherein first chamber is equipped with defeated
For connector to form the output end, second chamber and third chamber are equipped with input adapter to form input terminal out；It is described
First chamber is set to be connected with second chamber and third chamber respectively there are two through-hole；Two through-holes are equipped with stopple, pass through
Two stopples control the on-off of first chamber and second chamber, and the on-off of control first chamber and third chamber respectively.
On-off device structure is simple, and inner body is few and all machine components, and unfailing performance is high, can accurately control on-off
State guarantees that injection is gone on smoothly with what pumpback operated.
Preferably, the cross section of two stopples is T font, and one of stopple in two stopples is located at
In the second chamber, it is equipped with compressed spring in second chamber, which is withstood on by first chamber and the by the compressed spring
In through-hole between two chambers；Another stopple is located in first chamber, and compressed spring is equipped in first chamber, passes through the pressure
Contracting spring withstands on the stopple in the through-hole between first chamber and third chamber；The first chamber and third chamber are equipped with
Button, the direction for compressing corresponding compressed spring push stopple.
Press...with one's finger dynamic button, overcome the elastic force of compressed spring open stopple make first chamber be connected to second chamber or
First chamber and third chamber；Conversely, release button, disconnects corresponding circuit under the elastic force effect of compressed spring, grasps
Make simply, operating doctor to be facilitated to operate.
The beneficial effects of the present invention are embodied in:
The present invention includes injection pumpback device and on-off device, the injection recover include shell, injection mechanism and pumpback machine
Structure.When in use, the syringe for filling medical fluid is mounted on injection mechanism, is recycled the output end of puncture needle and on-off device
Conducting connection, two input terminals of on-off device are connected to syringe and plunger shaft one-to-one correspondence respectively.On-off device is fixed on puncture
On needle, when carrying out operation and needing pumpback and fluid injection, operating doctor presses the button on on-off device, select pumpback operation or
Fluid injection operation reduces personnel amount in surgical procedure, and operating doctor active control is returned instead of the compounding practice of assistant
Pumping and fluid injection, it is more accurate not operate because cooperating without tacit agreement, convenient.Operating doctor only needs while controlling puncture needle
On-off device is pressed, self administration when not only realizing single puncture, while ultrasonic shadow can be shown puncturing a little administration in midway
As tip position, be conducive to save the clinical manipulation time.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram that pumpback device is injected in the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural schematic diagram inside Fig. 1；
Fig. 4 is the enlarged drawing in Fig. 3 at A；
Fig. 5 is the enlarged drawing in Fig. 3 at B；
Fig. 6 is the structural schematic diagram in the present invention inside on-off device；
Fig. 7 is the perspective view of Fig. 1；
Fig. 8 is the structural schematic diagram injecting pumpback device, on-off device, puncture needle in the present invention and being connected to syringe；
Fig. 9 is the structural schematic diagram of four-way connection in the present invention.
In attached drawing, 1- on-off device, 2- injection mechanism, 3- pumpback mechanism, 4- plunger shaft, 5- piston rod, 6- mounting groove, 7- peace
It behave affectedly, the first guide rod of 8-, 9- fixed block, 10- movable block, 11- card slot, the first elastic component of 12-, 13- bar shaped ratchet, 14- pawl,
15- card, 16- blind hole, 17- groups of items, 18- rotation axis, 19- baffle, the second guide rod of 20-, 21- sliding sleeve, the second elastic component of 22-,
23- self-locking hole, 24- hangnail, 25- cone, 26- push rod, 27- handle, 28- opening, 29- first chamber, 30- second chamber, 31-
Third chamber, 32- out splice going splice, 33- input adapter, 34- stopple, 35- button, 36- compressed spring, 37- syringe, 38- are worn
Pricker, 39- connecting tube, 40- shell, 41- four-way connection
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
As shown in Fig. 1, Fig. 3, Fig. 7 and Fig. 8, the present embodiment provides a kind of single mechanical self-service syringe pumps, including inject back into
Device and on-off device 1 are taken out, injection recover includes shell 40, injection mechanism 2 and pumpback mechanism 3.Plunger shaft 4 is equipped with simultaneously in shell 40
And the piston rod 5 being adapted to plunger shaft 4 is equipped in plunger shaft 4.The upper surface of shell 40 is equipped with the connecting tube being connected to plunger shaft 4
39。
Injection mechanism 2 is installed in the mounting groove 6 of shell 40, for squeezing the injection being mounted on injection mechanism 2 automatically
Device 37, mounting groove 6 are provided with the upper surface of shell 40.Injection mechanism 2 itself do not have function of injection, additional one when in use
Syringe 37.
As shown in Figures 1 to 5, the specific structure of injection mechanism 2 is as follows in the present embodiment:
Injection mechanism 2 includes the first guide rod 8, fixed block 9 and movable block 10.Fixed block 9 is equipped with card slot 11, for placing note
The injection head of emitter 37.In addition, connecting tube 39 and 11 face of card slot, in order to be used cooperatively with dedicated four-way connection, four are connected
Head specific structure is as shown in Figure 9.In order to reduce the quantity of pipeline, the connection of four-way connection and on-off device is led using two-in-one
Pipe, the catheter interior be equipped with two independent channels, two interfaces of tube at one end respectively with two export heads of four-way connection
Conducting connection, other end of two interfaces are connected one by one with two input heads of on-off device connect respectively one by one.Card slot 11
Cross section is concave shape.The width of card slot 11 is adapted with the diameter of injection head, further that syringe 37 is tight by card slot 11
It is tightly stuck between fixed block 9 and movable block 10.One end of first guide rod 8 is fixed on the side wall of mounting groove 6 and makes the first guide rod 8
It is placed along mounting groove 6, the other end of the first guide rod 8 is fixedly connected with fixed block 9；Movable block 10 is set in the first guide rod 8
On, and the first elastic component 12 is equipped between movable block 10 and fixed block 9；Syringe 37 is folded in fixed block 9 and movable block 10
Between, so that movable block 10 is pushed syringe 37 to make syringe 37 infuse automatically under the restoring force effect of the first elastic component 12
It penetrates.In use, the syringe 37 for filling medical fluid is placed on injection mechanism 2, the first elastic component 12 has saved potential energy at this time, works as note
After penetrating pipeline connection, syringe 37 automatically injects under the restoring force effect of the first elastic component 12, grasps instead of the cooperation of assistant
Make, operating doctor obtains more mastering capabilities, facilitates surgical procedure.
The bottom wall of mounting groove 6 is equipped with bar shaped ratchet 13, and movable block 10 is equipped with pawl 14, passes through bar shaped ratchet 13 and pawl 14
Cooperation prevents movable block 10 mobile toward the direction of fixed block 9.When not sealing off using this equipment, movable block 10 is close to fixed block 9
So that the first elastic component 12 is in the state that do not elongate, is conducive to keep good elasticity, guarantee when in use not because elastic force does not live
And syringe 37 can not be squeezed.It is mobile using the preceding direction by movable block 10 far from fixed block 9, pass through 13 He of bar shaped ratchet at this time
Pawl 14 locks movable block 10, prevents the sliding of movable block 10 from going back.The side of movable block 10 is equipped with for blocking syringe 37
The card 15 of push rod 26, card 15 and fixed block 9 are opposite, and the cross section of card 15 is L shape.Movable block 10 is equipped with blind hole 16, blind
28 end of opening in hole 16 and card 15 are opposite；The swing of pawl 14 is installed in movable block 10, and the lower end of pawl 14 is stretched down
It contacts to lock movable block 10 with bar shaped ratchet 13 out, the upper end of pawl 14 extends in blind hole 16；It is equipped with and dials in blind hole 16
Item 17, the one end for dialling item 17 stretch out blind hole 16, dial the other end of item 17 and the upper-end contact of pawl 14, dial item 17 by pushing
The sliding and pawl 14 is swung around the rotation axis 18 of pawl 14 in the blind hole 16, separate pawl 14 with bar shaped ratchet 13 thus
Unlock movable block 10.The end of push rod 26 is equipped with the circular baffle 19 for increasing contact area, since the baffle 19 has thickness,
It will be squeezed while the baffle 19 of push rod 26 is stuck on card 15 and dial item 17 toward the sliding of 16 direction of blind hole, and interlock pawl 14 and item
Shape ratchet 13 separates, and movable block 10 facilitates syringe 37 to be stuck between fixed block 9 and movable block 10 after unlocking, while also facilitating the
One elastic component, 12 accumulation of energy.
Pumpback mechanism 3 is installed in the installation cavity 7 of shell 40, for driving piston rod 5 mobile.Pumpback machine in the present embodiment
The specific structure of structure 3 is as follows:
Pumpback mechanism 3 includes the second guide rod 20 and sliding sleeve 21；The side wall of installation cavity 7 is fixed on simultaneously in one end of second guide rod 20
Place the first guide rod 8 along installation cavity 7, the other end and piston rod 5 of the second guide rod 20 are opposite；Sliding sleeve 21 is set in second
The second elastic component 22 is equipped on guide rod 20 and between sliding sleeve 21 and the side wall of installation cavity 7；Sliding sleeve 21 it is opposite with piston rod 5 one
Face is equipped with self-locking hole 23, and sliding sleeve 21 is moved along the second guide rod 20 and stretching the second elastic component 22 inserts the end of piston rod 5
Enter in self-locking hole 23, slides piston rod 5 in plunger shaft 4 to generate suction by the restoring force of the second elastic component 22.?
It is combined using preceding sliding sleeve 21 with piston rod 5, has stretched the second elastic component 22 at this time and stored potential energy, after pumpback pipeline is connected,
Sliding sleeve 21 generates suction in the restoring force effect drop-down piston bar 5 of the second elastic component 22, so that the cooperation instead of assistant is grasped
Make, facilitates surgical procedure.When the restoring force for sliding over the second elastic component 22, which is acted on, to be slided with piston rod along the second guide rod,
In order to avoid the second guide rod is contradicted with piston rod and can not be moved, piston rod is designed as hollow pipe in the present embodiment, internal diameter
Greater than the outer diameter of the second guide rod.After piston rod and the second guide rod contact, the second guide rod will be inserted into piston rod and continue to slide.
For the purposes of making the second elastic component 22 that there is good elasticity, when not sealing off using this equipment, sliding sleeve 21 and work
Stopper rod 5 is in discrete state, so that the second elastic component 22 be made to be in non-elongation state.Piston rod 5 is being inserted into cunning when using
In set 21, in order to guarantee that piston rod 5 is tightly combined with sliding sleeve 21, hangnail 24 is equipped in self-locking hole 23, the end of piston rod 5 is equipped with
The tip of cone 25 and cone 25 and self-locking hole 23 are opposite.After the cone 25 of piston rod 5 is inserted into self-locking hole 23, pass through hangnail 24
Prevent piston rod 5 from separating with sliding sleeve 21, this equipment is disposable products, and the pumpback operation in surgical procedure is that verification punctures
Needle 38 is not inserted into blood vessel, vacancy etc. elsewhere, and pumpback process does not have air, blood or other liquid to occur, therefore living
The distance of 5 pumpback of stopper rod is small, and the suction generated in plunger shaft 4 is enough to complete a surgical procedure, passes through setting for self-locking hole 23
Meter combines piston rod 5 tightly with sliding sleeve 21, can not separate.
Since installation cavity 7 is located in shell 40, combined in order to facilitate moving sliding sleeve 21 with piston rod 5, the side wall of sliding sleeve 21
If there are two opposite push rods 26, the end of push rod 26 is equipped with handle 27；The two side walls of installation cavity 7, which are equipped with, makes two push rods
26 two openings 28 stretched out respectively.Slide handle 27 can control sliding sleeve 21 and move on the second guide rod 20.Two push rods
Design make sliding sleeve slide uniform force.
As shown in fig. 6, the specific structure of the on-off device 1 in the present embodiment is as follows:
First chamber 29, second chamber 30 and third chamber 31 are equipped in on-off device 1, wherein first chamber 29 is equipped with output
For connector 32 to form output end, second chamber 30 and third chamber 31 are equipped with input adapter 33 to form input terminal；The
One chamber 29 sets that there are two through-holes to be connected respectively with second chamber 30 and third chamber 31；Two through-holes are equipped with stopple 34, lead to
Cross the on-off that two stopples 34 control first chamber 29 and second chamber 30 respectively, and control first chamber 29 and third chamber
31 on-off.The cross section of two stopples 34 is T font, and through-hole is equipped with the step surface being adapted to the lower end surface of T font, step
So that the sealing effect is better for the cooperation of the stopple 34 of face and T font, can efficiently control the on-off of gas and liquid.Two stopples 34
In one of stopple 34 be located in second chamber 30, compressed spring 36 is equipped in second chamber 30, passes through the compressed spring
36 withstand on the stopple 34 in the through-hole between first chamber 29 and second chamber 30；Another stopple 34 is located at first chamber
In 29, it is equipped with compressed spring 36 in first chamber 29, which is withstood on by first chamber 29 and the by the compressed spring 36
In through-hole between three chambers 31；First chamber 29 and third chamber 31 are equipped with button 35, for compressing corresponding compression bullet
The direction of spring 36 pushes stopple 34.Button 35 is fixedly connected with corresponding stopple 34.Press...with one's finger dynamic button 35, overcomes compression bullet
The elastic force of spring 36, which opens stopple 34, makes that first chamber 29 is connected to second chamber 30 or first chamber 29 and third chamber 31 connect
It is logical；Conversely, release button 35, disconnects corresponding circuit under the elastic force effect of compressed spring 36, and it is easy to operate, facilitate operator to cure
Raw operation.
As shown in figure 8, this equipment is Dispoable medical equipment, need to carry out piping connection before use.Puncture needle 38
Upper end is connected connection with the output end of on-off device 1, two input terminals of on-off device 1 respectively with syringe 37 and plunger shaft 4 one by one
Corresponding connection.In order to realize the pumpback of operating doctor active control and fluid injection operation, instead of the compounding practice of assistant.By on-off device 1
It is fixed on the upper end of puncture needle 38, or not by conduit, directly connecing the out splice going splice of on-off device 1 and 38 upper end of puncture needle
Mouth conducting connection, to be fixed on puncture needle.When one hand of operating doctor takes ultrasonic probe to be positioned, in addition one
Handwritten visiting card enters puncture needle 38 and reaches designated position, can press the button on on-off device 1 by this hand of puncture needle 38 at this time
35, oneself complete pumpback and fluid injection operation.
In addition, in order to improve the leakproofness to liquid, second chamber 30 cooperates first chamber 29 for injecting drug, second
Chamber 30 is connected to syringe 37.Third chamber 31 cooperates first chamber 29 to be used for pumpback, and third chamber 31 and plunger shaft 4 connect
It is logical.When in use, the hydraulic pressure that liquid soup generates will push down the stopple in second chamber 30 34, add its sealing effect further
By force.
The first elastic component 12 and the second elastic component 22 in the present embodiment are extension spring.First elastic component 12 is set in
On first guide rod 8, the second elastic component 22 is set on the second guide rod 20.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of single mechanical self-service syringe pump, it is characterised in that: including injection pumpback device and on-off device；
The injection recover includes shell, injection mechanism and pumpback mechanism；Plunger shaft and plunger shaft are equipped in the shell
It is interior equipped with the piston rod being adapted to plunger shaft；
The injection mechanism is installed in the mounting groove of the shell, for squeezing the injection being mounted on injection mechanism automatically
Device；The pumpback mechanism is installed in the installation cavity of shell, for driving the piston rod mobile；
Connection is connected with two input terminals of the on-off device respectively in syringe and plunger shaft on the injection mechanism, by logical
The on-off of the output end of disconnected device control syringe and on-off device, and the on-off of control plunger shaft and the output end of on-off device.
2. single mechanical self-service syringe pump according to claim 1, it is characterised in that: the injection mechanism is led including first
Bar, fixed block and movable block；One end of first guide rod is fixed on the side wall of the mounting groove and makes the first guide rod along peace
Tankage is placed, and the other end of the first guide rod is fixedly connected with the fixed block；The movable block is set on the first guide rod, and
And the first elastic component is equipped between movable block and fixed block；Syringe is folded between fixed block and movable block, described first
Movable block is set to push syringe to make syringe automatically inject under the restoring force effect of elastic component.
3. single mechanical self-service syringe pump according to claim 2, it is characterised in that: the bottom wall of the mounting groove is equipped with item
Shape ratchet, movable block are equipped with pawl, prevent movable block mobile toward the direction of fixed block by bar shaped ratchet and click-fit.
4. single mechanical self-service syringe pump according to claim 3, it is characterised in that: the side of the movable block, which is equipped with, to be used
In the card for the push rod for blocking syringe, the card is opposite with the fixed block；The movable block is equipped with blind hole, and blind hole is opened
Mouth end is opposite with the card；The pawl swing is installed in movable block, and the lower end of pawl is stretched out and the item down
To lock movable block, the upper end of pawl extends in the blind hole contact of shape ratchet；It is equipped in the blind hole and dials item, dial item
Blind hole is stretched out in one end, dials the other end of item and the upper-end contact of pawl, by pushing group item to slide in blind hole and pawl
Rotation axis around pawl is swung, and separates pawl with bar shaped ratchet to unlock movable block.
5. single mechanical self-service syringe pump according to claim 2, it is characterised in that: the fixed block is equipped with card slot, uses
In the injection head for placing syringe.
6. single mechanical self-service syringe pump according to claim 1, it is characterised in that: the pumpback mechanism is led including second
Bar and sliding sleeve；One end of second guide rod is fixed on the side wall of the installation cavity and places the first guide rod along installation cavity,
The other end of second guide rod is opposite with the piston rod；The sliding sleeve is set on the second guide rod and sliding sleeve and installation cavity
The second elastic component is equipped between side wall；The sliding sleeve one side opposite with piston rod is equipped with self-locking hole, and the sliding sleeve is along the second guide rod
It moves and stretching the second elastic component is inserted into the end of piston rod in the self-locking hole, made by the restoring force of the second elastic component
Piston rod slides to generate suction in plunger shaft.
7. single mechanical self-service syringe pump according to claim 6, it is characterised in that: hangnail is equipped in the self-locking hole,
The end of the piston rod is equipped with cone and the tip of cone is opposite with self-locking hole.
8. single mechanical self-service syringe pump according to claim 6, it is characterised in that: the side wall of the sliding sleeve is equipped with and pushes away
The end of bar, push rod is equipped with handle；The installation cavity is equipped with the opening for stretching out the push rod.
9. single mechanical self-service syringe pump according to claim 1, it is characterised in that: be equipped with the first chamber in the on-off device
Room, second chamber and third chamber, wherein first chamber is equipped with out splice going splice to form the output end, second chamber and the
Three chambers are equipped with input adapter to form input terminal；The first chamber set there are two through-hole respectively with second chamber and the
The conducting of three chambers；Two through-holes are equipped with stopple, control the logical of first chamber and second chamber respectively by two stopples
It is disconnected, and the on-off of control first chamber and third chamber.
10. single mechanical self-service syringe pump according to claim 9, it is characterised in that: the cross section of two stopples
It is T font, one of stopple in two stopples is located in the second chamber, and compression bullet is equipped in second chamber
Spring is withstood on the stopple in the through-hole between first chamber and second chamber by the compressed spring；Another stopple is located at
In first chamber, it is equipped with compressed spring in first chamber, which is withstood on by first chamber and third chamber by the compressed spring
In through-hole between room；The first chamber and third chamber are equipped with button, for compressing the direction of corresponding compressed spring
Push stopple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555467.0A CN108969841B (en) | 2018-06-01 | 2018-06-01 | Single mechanical self-help injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555467.0A CN108969841B (en) | 2018-06-01 | 2018-06-01 | Single mechanical self-help injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108969841A true CN108969841A (en) | 2018-12-11 |
| CN108969841B CN108969841B (en) | 2020-10-09 |
Family
ID=64540412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810555467.0A Active CN108969841B (en) | 2018-06-01 | 2018-06-01 | Single mechanical self-help injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108969841B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114246653A (en) * | 2021-10-27 | 2022-03-29 | 太平洋康泰科学仪器（济南）有限公司 | Intelligent constant-temperature push injection pump |
| CN114904130A (en) * | 2021-02-09 | 2022-08-16 | 阿普塔尔法国简易股份公司 | Micro-needle type applicator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989000397A1 (en) * | 1987-07-09 | 1989-01-26 | Avl Ag | Device for withdrawal of body fluids |
| CN2453923Y (en) * | 2000-12-13 | 2001-10-17 | 庞瑞平 | Booster for intravenous |
| CN101002975A (en) * | 2005-11-23 | 2007-07-25 | 舍伍德服务股份公司 | Single lumen adapter for automatic valve |
| CN103140256A (en) * | 2010-06-29 | 2013-06-05 | 呼吸医疗技术有限公司 | Device and method for irrigating-evacuating a body cavity |
| WO2014037524A1 (en) * | 2012-09-06 | 2014-03-13 | Norwegian University Of Science And Technology (Ntnu) | Intervention device |
| CN106352116A (en) * | 2016-11-02 | 2017-01-25 | 东键飞能源科技(上海)有限公司 | Novel double-layered four-way reversing valve |
| CN106492311A (en) * | 2016-12-08 | 2017-03-15 | 四川大学华西第二医院 | A kind of hand-held can auxiliary syringe auto-pumping and the device that injects |
-
2018
- 2018-06-01 CN CN201810555467.0A patent/CN108969841B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989000397A1 (en) * | 1987-07-09 | 1989-01-26 | Avl Ag | Device for withdrawal of body fluids |
| CN2453923Y (en) * | 2000-12-13 | 2001-10-17 | 庞瑞平 | Booster for intravenous |
| CN101002975A (en) * | 2005-11-23 | 2007-07-25 | 舍伍德服务股份公司 | Single lumen adapter for automatic valve |
| CN103140256A (en) * | 2010-06-29 | 2013-06-05 | 呼吸医疗技术有限公司 | Device and method for irrigating-evacuating a body cavity |
| WO2014037524A1 (en) * | 2012-09-06 | 2014-03-13 | Norwegian University Of Science And Technology (Ntnu) | Intervention device |
| CN106352116A (en) * | 2016-11-02 | 2017-01-25 | 东键飞能源科技(上海)有限公司 | Novel double-layered four-way reversing valve |
| CN106492311A (en) * | 2016-12-08 | 2017-03-15 | 四川大学华西第二医院 | A kind of hand-held can auxiliary syringe auto-pumping and the device that injects |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904130A (en) * | 2021-02-09 | 2022-08-16 | 阿普塔尔法国简易股份公司 | Micro-needle type applicator |
| CN114246653A (en) * | 2021-10-27 | 2022-03-29 | 太平洋康泰科学仪器（济南）有限公司 | Intelligent constant-temperature push injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108969841B (en) | 2020-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108969841A (en) | Single mechanical self-service syringe pump is set | |
| CN206660125U (en) | Automatic point imbedding tool | |
| CN110478536A (en) | Internal Medicine-Cardiovascular Dept. clinic sting device | |
| CN208448324U (en) | Cell removes activated conductive device | |
| CN203556002U (en) | Electric syringe for angiocardiographic agents | |
| CN208573802U (en) | A kind of puncture drainage connector | |
| CN106730169A (en) | For the injection device of ocular injection | |
| CN208659455U (en) | A kind of balloon type tourniquet | |
| CN205658924U (en) | Stab type department of neurology clinic treatment device | |
| CN2899811Y (en) | Pneumatic expelling type injector | |
| CN202777079U (en) | Dispensing injector | |
| CN202699720U (en) | Vaginal syringe | |
| CN208911121U (en) | A kind of pre-filled washing pipe pipe sealing device | |
| CN209916692U (en) | Aseptic automatic dispensing device | |
| CN106902420A (en) | For the fluid infusion apparatus being administered to patient | |
| CN209153780U (en) | A kind of thoracic surgery sting device | |
| CN111150463A (en) | Marrow puncture extraction device for hematology department | |
| CN216495540U (en) | Peripheral vein negative pressure puncture needle | |
| CN109498974A (en) | Safety aid before a kind of chemotherapy | |
| CN205322369U (en) | Epididymis aspiration biopsy needle | |
| CN111529009B (en) | Device convenient to operate by one person and used for nerve block medicine injection | |
| CN110496253A (en) | A kind of minimally invasive depression drainage device of drainer for plastic surgery | |
| CN209967278U (en) | Disposable high-pressure contrast syringe | |
| CN213641122U (en) | Ultrasonic guide puncture suit | |
| CN210844714U (en) | Clinical puncture ware of internal medicine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 311115 the third people's Hospital of Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Wang Weibin Address before: 313201 Deqing Hospital, Xinshi Town, Deqing County, Huzhou City, Zhejiang Province Applicant before: Wang Weibin |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |