CN113855936A - Sliding block for medical precision injector - Google Patents

Abstract

The invention discloses a sliding block for a medical precision injector, which belongs to the technical field of medical instruments and comprises a base, wherein a partition plate is arranged in the middle of an inner cavity of the base, a plurality of driving cylinders and a plurality of middle cylinders are respectively arranged in the base at two sides of the partition plate, an adjusting mechanism is arranged between the driving cylinders and the partition plate, a pushing mechanism is arranged between one end of each driving cylinder and the base, a plurality of injectors are clamped at one end of the base, and a push plate of each injector is connected with the middle cylinder. The joint is on the base behind the different liquid medicines of a plurality of syringes absorption, and cylinder in the middle of the push pedal joint of syringe, adjust the drive ratio who drives actuating cylinder and middle cylinder through adjustment mechanism, then when promoting a plurality of drive actuating cylinder simultaneously through pushing mechanism, it drives middle cylinder according to the drive ratio simultaneously to drive actuating cylinder, thereby make a plurality of syringes evenly inject different medicines according to the ratio proportion, keep synchronous mixed infusion, ensure liquid medicine ratio homogeneity, and pushing mechanism's displacement control is accurate, thereby the volume of infusing easily controls.

Description

Sliding block for medical precision injector

Technical Field

The invention relates to the technical field of medical instruments, in particular to a sliding block for a medical precision injector.

Background

Some liquid medicines need to be administered through controllable infusion, and liquid medicine components need to be mixed in proportion, the existing syringes can only infuse single liquid medicine, but cannot meet the requirement that multiple liquid medicines are infused simultaneously according to proportion, the input quantity during infusion is difficult to control, the input quantity is usually controlled by the proficiency of medical staff, and errors of medicine proportion and infusion quantity are easily caused.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide a slide block for a medical precision syringe.

In order to solve the technical problems, the invention adopts the following technical scheme: the invention provides a sliding block for a medical precision injector, which comprises a base, wherein a partition plate is fixedly arranged in the middle of an inner cavity of the base, a plurality of driving cylinders and a plurality of middle cylinders are fixedly arranged in the base on two sides of the partition plate respectively, an adjusting mechanism is arranged between one end, close to the driving cylinders and the middle cylinders, of each driving cylinder and the partition plate, a pushing mechanism is arranged between one end, far away from the partition plate, of each driving cylinder and the base, one end, far away from the pushing mechanism, of each base is clamped with a plurality of injectors, and a pushing plate of each injector is connected with the middle cylinders.

Preferably, the one end that pushing mechanism was kept away from to the base is opened has a plurality of semicircular grooves, the joint syringe in the semicircular groove, the articulated one end of clamp plate in base one side of syringe department, the other end of clamp plate passes through bolted connection base, it has the semicircular groove of a plurality of joint syringes to open on the clamp plate.

Preferably, pushing mechanism is including leading to the groove, it has logical groove to open on the bottom plate of base, lead to groove and base inner chamber within a definite time slip joint T type slider, T type slider fixed connection drives actuating cylinder, install non return mechanism between the both sides outer wall of T type slider and the inner wall of base, two fixed plates of bottom fixed mounting of base, fixed mounting guide bar between the fixed plate, T type slider slip joint is on the guide bar, the middle part of fixed plate is rotated and is cup jointed the screw rod, T type slider cup joints on the screw rod through helicitic texture.

Preferably, the non return mechanism includes the locking tooth, the equal fixed mounting locking tooth of both sides inner wall of base, the groove has all been opened to the both sides of T type slider and has been accomodate, accomodate the inslot joint briquetting that all slides, the equal fixed mounting latch of outer wall of briquetting, latch joint locking tooth, the briquetting is kept away from the one end installation spring of locking tooth with accomodating the groove, the top fixed mounting driving lever of briquetting, the driving lever slides the top that runs through T type slider.

Preferably, the spring is in a compressed state all the time, one side of the stopping tooth, which is far away from the partition plate, and one side of the latch, which is close to the partition plate, are of matched inclined structures, and the other sides of the stopping tooth and the latch are of planar structures.

Preferably, it includes the mount to drive actuating cylinder, mount fixed mounting is in the inner chamber bottom of base, a plurality of minute cylinders of fixed mounting on the mount, slide the first piston of joint in the minute cylinder, the one end fixed connection push rod of baffle is kept away from to first piston, the push rod slides and runs through minute cylinder and fixed connection T type slider, the one end connection adjustment mechanism of push rod is kept away from to the minute cylinder.

Preferably, the middle cylinder includes a sealing cylinder, the inner chamber bottom of the sealing cylinder fixed mounting base, a sliding clamping second piston in the sealing cylinder, one end fixed mounting connecting rod of baffle is kept away from to the second piston, the connecting rod slides and runs through sealing cylinder and fixed connection cassette, it has the draw-in groove to open on the cassette, the push pedal joint draw-in groove of syringe, the one end that sealing cylinder is close to the baffle is connected adjustment mechanism, and sealing cylinder is close to the outer wall fixed connection bleed pipe of baffle, the bleed pipe runs through the base and installs the valve.

Preferably, adjustment mechanism includes the runner, the runner rotates the joint on the baffle, open one side of runner has the exhaust hole, open the opposite side of runner has a plurality of air vents, fixed a plurality of first intubate and the second intubate of cup jointing respectively on the baffle at runner both ends, and the inner chamber one-to-one of first intubate and second intubate, first intubate passes through hose connection cylinder that divides, the fixed terminal surface of cup jointing at a sealed section of thick bamboo of second intubate.

Preferably, the exhaust hole is semicircular structure, the quantity of air vent is the same with first intubate and second intubate, and air vent, first intubate and second intubate all follow the semicircle marginal evenly distributed of runner, the one side laminating runner that first intubate and second intubate are close to mutually, and installation check valve in the second intubate, the flow direction of check valve is the runner flow direction and seals a section of thick bamboo.

Preferably, the outer wall fixed mounting gear tooth of runner, it has the spout to open on the baffle in the runner outside, slide joint depression bar in the spout, the depression bar is close to the one end fixed mounting bulb of runner, the bulb joint is between the gear tooth, cup joint the pressure spring on the depression bar between bulb and spout.

The invention has the beneficial effects that:

1. the rotating wheel is rotated, so that the vent holes communicate the first insertion tubes and the second insertion tubes in corresponding quantity, the rest first insertion tubes and the rest second insertion tubes are aligned with the exhaust holes, and the transmission ratio of the driving cylinder and the middle cylinder is the ratio of the communication quantity of the first insertion tubes and the second insertion tubes, so that the adjustment is simple and convenient;

2. the screw rod is rotated to drive the T-shaped sliding block to slide, so that the push rod is pushed at the same time, the first piston pushes out the gas in the branch cylinders, the communicated first insertion tube and second insertion tube guide the gas in the branch cylinders into the sealing cylinder, the gas in the rest branch cylinders is directly discharged through the exhaust holes, so that the T-shaped sliding block moves for the same distance, the moving distance of the second pistons is in direct proportion to the number of the communicated first insertion tubes and second insertion tubes, and the liquid medicine is infused in proportion by different injectors;

3. when the T-shaped sliding block slides, the latch is in contact with the inclined surface of the stopping tooth, so that the pressing block slides towards the accommodating groove, the latch conveniently crosses the stopping tooth, the driving cylinder is pushed, the latch is attached to the stopping tooth through the elastic force of the spring, the T-shaped sliding block cannot slide towards the direction far away from the partition plate, the phenomenon that the syringe reversely sucks body fluid of a patient due to misoperation is avoided, and the use safety is ensured;

4. the T-shaped sliding block is pushed by the screw rod, the moving distance is accurate and controllable, the infusion amount is convenient to control, and the operation is simple and convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a slide block for a medical precision syringe according to an embodiment of the present invention.

FIG. 2 is a schematic view of the pushing mechanism of the present invention.

Fig. 3 is a schematic structural view of the check mechanism of the present invention.

Fig. 4 is a schematic structural diagram of the driving cylinder of the present invention.

Fig. 5 is a schematic structural diagram of the adjusting mechanism of the present invention.

FIG. 6 is an enlarged view of the structure at A in FIG. 4 according to the present invention.

Description of reference numerals: 1. a base; 2. a pushing mechanism; 21. a T-shaped slider; 22. a through groove; 23. a fixing plate; 24. a guide bar; 25. a screw; 26. a non-return mechanism; 261. a stop tooth; 262. a receiving groove; 263. briquetting; 264. clamping teeth; 265. a spring; 266. a deflector rod; 3. a driving cylinder; 31. a fixed mount; 32. dividing a cylinder; 33. a first piston; 34. a push rod; 4. a middle cylinder; 41. a sealing cylinder; 42. a second piston; 43. a connecting rod; 44. a card holder; 45. a card slot; 46. discharging the air pipe; 5. a partition plate; 6. an adjustment mechanism; 61. a rotating wheel; 62. an exhaust hole; 63. a vent hole; 64. a first cannula; 65. a second cannula; 7. an injector; 8. pressing a plate; 9. a chute; 10. a pressure lever; 11. a ball head; 12. a pressure spring; 13. gear teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1 to 6, the invention provides a sliding block for a medical precision injector, which comprises a base 1, a partition plate 5 is fixedly installed in the middle of an inner cavity of the base 1, a plurality of driving cylinders 3 and a plurality of middle cylinders 4 are respectively and fixedly installed in the base 1 at two sides of the partition plate 5, an adjusting mechanism 6 is installed between one end, close to the driving cylinders 3 and the middle cylinders 4, of each driving cylinder and the partition plate 5, a pushing mechanism 2 is installed between one end, far away from the partition plate 5, of each driving cylinder 3 and the base 1, one end, far away from the pushing mechanism 2, of the base 1 is clamped with a plurality of injectors 7, and a pushing plate of each injector 7 is connected with the middle cylinders 4. A plurality of syringes 7 absorb different liquid medicines back joint on base 1, and cylinder 4 in the middle of the push pedal joint of syringe 7, adjust the drive ratio who drives actuating cylinder 3 and middle cylinder 4 through adjustment mechanism 6, then promote a plurality of drive actuating cylinder 3 simultaneously through pushing mechanism 2 when, it drives middle cylinder 4 to drive actuating cylinder 3 simultaneously according to the drive ratio, thereby make a plurality of syringes 7 evenly inject different medicines into according to the ratio, keep synchronous mixed infusion, ensure liquid medicine ratio homogeneity, and pushing mechanism 2's displacement control is accurate, thereby infusion volume is easily controlled.

One end of the base 1 far away from the pushing mechanism 2 is provided with a plurality of semicircular grooves, the syringes 7 are clamped in the semicircular grooves, one end of a pressing plate 8 is hinged to one side of the base 1 at the position of the syringes 7, the other end of the pressing plate 8 is connected with the base 1 through bolts, and the semicircular grooves of the clamping syringes 7 are formed in the pressing plate 8, so that the syringes 7 can be fixed quickly.

Pushing mechanism 2 is including leading to groove 22, it has leading to groove 22 to open on base 1's the bottom plate, it connects T type slider 21 to lead to slip joint between 1 inner chamber of groove 22 and base, T type slider 21 fixed connection drives actuating cylinder 3, install non return mechanism 26 between T type slider 21's both sides outer wall and base 1's inner wall, two fixed plates 23 of base 1's bottom fixed mounting, fixed mounting guide bar 24 between the fixed plate 23, T type slider 21 slip joint is on guide bar 24, rotate between the middle part of fixed plate 23 and cup joint screw rod 25, T type slider 21 cup joints on screw rod 25 through helicitic texture.

Further, the non-return mechanism 26 comprises a stop tooth 261, the stop tooth 261 is fixedly mounted on the inner walls of the two sides of the base 1, the accommodating groove 262 is formed in each of the two sides of the T-shaped sliding block 21, the pressing block 263 is slidably clamped in the accommodating groove 262, the latch 264 is fixedly mounted on the outer wall of the pressing block 263, the latch 264 is clamped with the stop tooth 261, the spring 265 is mounted at one end of the pressing block 263, which is far away from the stop tooth 261, of the accommodating groove 262, the driving lever 266 is fixedly mounted at the top of the pressing block 263, and the driving lever 266 penetrates through the top of the T-shaped sliding block 21 in a sliding manner.

Further, the spring 265 is always in a compressed state, one side of the stopping tooth 261 far away from the partition plate 5 and one side of the latch 264 near the partition plate 5 are in a matched inclined structure, and the other sides of the stopping tooth 261 and the latch 264 are in a plane structure.

Then pushing mechanism 2 in the use, through rotating screw rod 25, screw rod 25 drives T type slider 21 and slides, thereby promote a plurality of actuating cylinder 3 that drive simultaneously, and simultaneously, when T type slider 21 slides, latch 264 contacts with the inclined plane of stop tooth 261, thereby make briquetting 263 to slide in accommodating groove 262, the latch 264 of being convenient for crosses stop tooth 261, thereby promote actuating cylinder 3, and the elasticity of spring 265 makes latch 264 laminate stop tooth 261, then T type slider 21 can 'T slide to the direction of keeping away from baffle 5, avoid the maloperation to lead to syringe 7 reverse suction patient's body fluid, before the use, manual pulling driving lever 266, make latch 264 break away from stop tooth 261, the T type slider 21 of being convenient for keeps away from baffle 5 and resets.

Further, the driving cylinder 3 comprises a fixing frame 31, the fixing frame 31 is fixedly installed at the bottom of the inner cavity of the base 1, a plurality of sub-cylinders 32 are fixedly installed on the fixing frame 31, first pistons 33 are slidably clamped in the sub-cylinders 32, one ends of the first pistons 33 far away from the partition board 5 are fixedly connected with a push rod 34, the push rod 34 slidably penetrates through the sub-cylinders 32 and is fixedly connected with the T-shaped sliding block 21, and one ends of the sub-cylinders 32 far away from the push rod 34 are connected with the adjusting mechanism 6.

Further, middle cylinder 4 includes a sealed section of thick bamboo 41, the inner chamber bottom of a sealed section of thick bamboo 41 fixed mounting base 1, slip joint second piston 42 in a sealed section of thick bamboo 41, the one end fixed mounting connecting rod 43 of baffle 5 is kept away from to second piston 42, connecting rod 43 slides and runs through a sealed section of thick bamboo 41 and fixed connection cassette 44, it has draw-in groove 45 to open on the cassette 44, the push pedal draw-in groove 45 of syringe 7 joint, adjustment mechanism 6 is connected to the one end that a sealed section of thick bamboo 41 is close to baffle 5, and a sealed section of thick bamboo 41 is close to the outer wall fixed connection bleeder 46 of baffle 5, bleeder 46 runs through base 1 and installation valve.

Furthermore, the adjusting mechanism 6 comprises a rotating wheel 61, the rotating wheel 61 is rotatably clamped on the partition board 5, one side of the rotating wheel 61 is provided with an exhaust hole 62, the other side of the rotating wheel 61 is provided with a plurality of vent holes 63, the partition boards 5 at the two ends of the rotating wheel 61 are respectively and fixedly sleeved with a plurality of first insertion tubes 64 and second insertion tubes 65, the inner cavities of the first insertion tubes 64 correspond to the inner cavities of the second insertion tubes 65 one by one, the first insertion tubes 64 are connected with the air distributing cylinder 32 through flexible pipes, the second insertion tubes 65 are fixedly sleeved on the end face of the sealing barrel 41, the exhaust holes 62 are of semicircular structures, the number of the vent holes 63 is the same as that of the first insertion tubes 64 and the second insertion tubes 65, the vent holes 63, the first insertion tube 64 and the second insertion tube 65 are uniformly distributed along the semicircular edge of the rotating wheel 61, the surfaces, close to each other, of the first insertion tube 64 and the second insertion tube 65 are attached to the rotating wheel 61, and a one-way valve is arranged in the second insertion pipe 65, and the flow direction of the one-way valve is that the rotating wheel 61 flows to the sealing barrel 41.

When the push rod 34 of the driving cylinder 3 is pushed by the T-shaped slide block 21, the first piston 33 pushes out the gas in the branch cylinder 32, and by rotating the rotating wheel 61, the vent holes 63 communicate a corresponding number of first insertion tubes 64 and second insertion tubes 65, and the remaining first insertion tubes 64 and second insertion tubes 65 are aligned with the vent holes 62, so that the gas in the plurality of branch cylinders 32 is introduced into the sealing cylinder 41 by the communicated first insertion tubes 64 and second insertion tubes 65, and the gas in the remaining branch cylinders 32 is directly discharged through the vent holes 62, so that the T-shaped slide block 21 moves by the same distance, and the moving distance of the plurality of second pistons 42 is proportional to the number of the communicated first insertion tubes 64 and second insertion tubes 65, thereby realizing proportional infusion of liquid medicines by different syringes 7.

Further, the device resetting method before infusion is that the first cannula 64 and the second cannula 65 are both right opposite to the exhaust hole 62, at this time, the driving cylinder 3 can directly suck outside air for resetting, at this time, the valve of the air release pipe 46 on the sealing barrel 41 is opened, so that the clamping seat 44 can be directly pushed, and the second piston 42 is reset.

Outer wall fixed mounting gear tooth 13 of runner 61, it has spout 9 to open on the baffle 5 in the runner 61 outside, sliding clamping depression bar 10 in the spout 9, depression bar 10 is close to the one end fixed mounting bulb 11 of runner 61, bulb 11 joint is between gear tooth 13, cup joint pressure spring 12 on the depression bar 10 between bulb 11 and spout 9, then be convenient for rotate runner 61 through gear tooth 13, and in the runner 61 rotates, gear tooth 13 extrudes bulb 11 under the exogenic action, thereby promote depression bar 10, make the compression of pressure spring 12, bulb 11 slides into in the spout 9, after adjusting, pressure spring 12 promotes bulb 11 card and goes into between gear tooth 13, increase runner 61's rotation frictional force, avoid runner 61 rotation, guarantee that the drive ratio is accurate.

Furthermore, the numbers are arranged on the end surfaces of the rotating wheels 61 at the exhaust holes 62 and correspond to the vent holes 63 one by one, so that the number of the communicated first insertion tubes 64 and the number of the communicated second insertion tubes 65 can be determined conveniently.

When the device is used, a plurality of syringes 7 suck different liquid medicines and then are clamped on the base 1, the push plate of the syringe 7 is clamped on the clamping seat 44, the rotating wheel 61 is rotated, the vent holes 63 enable the first insertion tubes 64 and the second insertion tubes 65 with corresponding quantities to be communicated, the rest first insertion tubes 64 and the rest second insertion tubes 65 are aligned with the vent holes 62, the transmission ratio of the driving cylinder 3 to the middle cylinder 4 is the ratio of the communicated quantities of the first insertion tubes 64 and the second insertion tubes 65, the screw 25 drives the T-shaped sliding block 21 to slide by rotating the screw 25, so that the push rod 34 is pushed simultaneously, the first piston 33 pushes out the gas in the branch cylinder 32, the communicated first insertion tubes 64 and the second insertion tubes 65 guide the gas in the branch cylinders 32 into the sealing cylinder 41, the rest gas in the branch cylinders 32 is directly exhausted through the vent holes 62, so that the T-shaped sliding block 21 moves for the same distance, the moving distance of the plurality of second pistons 42 is in direct proportion to the quantity of the communicated first insertion tubes 64 and second insertion tubes 65, thereby realize that different syringes 7 are with liquid medicine infusion in proportion, and simultaneously, when T type slider 21 slides, latch 264 contacts with the inclined plane of stop tooth 261, thereby make briquetting 263 slide in to accomodating groove 262, the latch 264 of being convenient for crosses stop tooth 261, thereby promote drive actuating cylinder 3, and spring 265's elasticity makes latch 264 laminate stop tooth 261, then T type slider 21 can ' T slide to the direction of keeping away from baffle 5, avoid the maloperation to lead to syringe 7 reverse suction patient's body fluid, promote T type slider 21 through screw rod 25, the displacement is accurate controllable, be convenient for control infusion volume.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. The utility model provides a slider for medical accurate syringe, includes base (1), its characterized in that: inner chamber middle part fixed mounting baffle (5) of base (1), it drives actuating cylinder (3) and middle cylinder (4) to drive in base (1) of baffle (5) both sides a plurality of fixed mounting respectively, drive and install adjustment mechanism (6) between one end that actuating cylinder (3) and middle cylinder (4) are close to mutually and baffle (5), drive and install pushing mechanism (2) between one end that actuating cylinder (3) kept away from baffle (5) and base (1), a plurality of syringes (7) of one end joint of pushing mechanism (2) are kept away from in base (1), cylinder (4) in the middle of cylinder (7) are connected in the push pedal of syringe (7).

2. The slide block for a medical precision syringe as claimed in claim 1, wherein: one end that pushing mechanism (2) were kept away from in base (1) is opened has a plurality of semicircular grooves, semicircular groove internal clamping syringe (7), the one end of articulated clamp plate (8) in base (1) one side of syringe (7) department, bolted connection base (1) is passed through to the other end of clamp plate (8), open the semicircular groove that has a plurality of joint syringes (7) on clamp plate (8).

3. The slide block for a medical precision syringe as claimed in claim 1, wherein: pushing mechanism (2) are including leading to groove (22), it has logical groove (22) to open on the bottom plate of base (1), lead to groove (22) and base (1) inner chamber within a definite time slip joint T type slider (21), T type slider (21) fixed connection drives actuating cylinder (3), install non return mechanism (26) between the both sides outer wall of T type slider (21) and the inner wall of base (1), two fixed plate (23) of bottom fixed mounting of base (1), fixed mounting guide bar (24) between fixed plate (23), T type slider (21) slip joint is on guide bar (24), it cup joints screw rod (25) to rotate between fixed plate (23), T type slider (21) cup joints on screw rod (25) through helicitic texture.

4. A slide for a medical precision syringe as defined in claim 3, wherein: non return mechanism (26) are including stopping tooth (261), the equal fixed mounting of both sides inner wall of base (1) stops tooth (261), the both sides of T type slider (21) are all opened and are received groove (262), all slip joint briquetting (263) in receiving groove (262), the equal fixed mounting latch (264) of outer wall of briquetting (263), latch (264) joint stop tooth (261), briquetting (263) and the one end installation spring (265) of keeping away from stopping tooth (261) in receiving groove (262), the top fixed mounting driving lever (266) of briquetting (263), driving lever (266) slides the top of running through T type slider (21).

5. The slide block for a medical precision syringe according to claim 4, wherein: the spring (265) is always in a compressed state, one side of the stopping tooth (261) far away from the partition plate (5) and one side of the latch (264) close to the partition plate (5) are of matched inclined structures, and the other sides of the stopping tooth (261) and the latch (264) are of planar structures.

6. The slide block for a medical precision syringe as claimed in claim 1, wherein: drive actuating cylinder (3) including mount (31), mount (31) fixed mounting is in the inner chamber bottom of base (1), a plurality of minute cylinders (32) of fixed mounting are gone up in mount (31), slide first piston (33) of joint in minute cylinder (32), one end fixed connection push rod (34) of baffle (5) are kept away from in first piston (33), push rod (34) slide and run through minute cylinder (32) and fixed connection T type slider (21), divide cylinder (32) to keep away from the one end connection adjustment mechanism (6) of push rod (34).

7. The slide block for a medical precision syringe as claimed in claim 1, wherein: middle cylinder (4) are including sealed section of thick bamboo (41), the inner chamber bottom of sealed section of thick bamboo (41) fixed mounting base (1), slide joint second piston (42) in sealed section of thick bamboo (41), one end fixed mounting connecting rod (43) of baffle (5) are kept away from in second piston (42), connecting rod (43) slide and run through sealed section of thick bamboo (41) and fixed connection cassette (44), it has draw-in groove (45) to open on cassette (44), push pedal joint draw-in groove (45) of syringe (7), adjustment mechanism (6) are connected to the one end that sealed section of thick bamboo (41) are close to baffle (5), and sealed section of thick bamboo (41) are close to outer wall fixed connection gassing pipe (46) of baffle (5), gassing pipe (46) run through base (1) and install the valve.

8. The slide block for a medical precision syringe as claimed in claim 1, wherein: adjustment mechanism (6) include runner (61), runner (61) rotate the joint on baffle (5), open one side of runner (61) has exhaust hole (62), open the opposite side of runner (61) has a plurality of air vents (63), fixed a plurality of first intubate (64) and second intubate (65) of cup jointing respectively on baffle (5) at runner (61) both ends, and the inner chamber one-to-one of first intubate (64) and second intubate (65), first intubate (64) are through hose connection cylinder (32), the fixed terminal surface of cup jointing in sealed section of thick bamboo (41) of second intubate (65).

9. The slide block for a medical precision syringe according to claim 8, wherein: exhaust hole (62) are semicircular structure, the quantity of air vent (63) is the same with first intubate (64) and second intubate (65), and air vent (63), first intubate (64) and second intubate (65) all follow the semicircle edge evenly distributed of runner (61), runner (61) are laminated to the one side that first intubate (64) and second intubate (65) are close to mutually, and install the check valve in second intubate (65), and the flow direction of check valve is runner (61) flow direction sealing barrel (41).

10. The slide block for a medical precision syringe according to claim 8, wherein: outer wall fixed mounting gear tooth (13) of runner (61), it has spout (9) to open on baffle (5) in the runner (61) outside, slide joint depression bar (10) in spout (9), one end fixed mounting bulb (11) that depression bar (10) are close to runner (61), bulb (11) joint is between gear tooth (13), cup joint pressure spring (12) on depression bar (10) between bulb (11) and spout (9).

Images