CN213526876U - Anti-pollution automatic suction syringe - Google Patents

Abstract

The utility model discloses an anti-pollution automatic suction syringe relates to medical instrument technical field, has solved the in-process of using the syringe extraction medicine, causes the aching pain of nursing staff's arm, has increased nursing staff's working strength, and nursing staff's hand is likely to contact the piston of syringe at the in-process of repeated suction simultaneously, and the liquid medicine that leads to using or preparing receives the problem of pollution, and its technical scheme main points are: the device comprises a needle cylinder, wherein a liquid inlet hole is formed in the bottom end of the needle cylinder, a piston and a moving shaft connected with the piston are arranged in the needle cylinder, the moving shaft protrudes out of the top end of the needle cylinder and is provided with a moving handle, an outer shell fixedly connected with the needle cylinder is annularly arranged on the outer wall of the needle cylinder, a vertical movable groove is formed in the outer shell, and the movable groove extends to the bottom end of the needle cylinder from the top end of the needle cylinder; the movable groove is inserted with a slidable lifting structure; the effects of simple operation and reduced working strength are achieved.

Description

Anti-pollution automatic suction syringe

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, it relates to an anti-pollution automatic suction syringe.

Background

The injector is a common medical appliance, and consists of a syringe with a small hole at the front end and a piston core rod matched with the syringe, wherein the syringe is used for injecting a small amount of liquid or injecting the liquid into an area which cannot be close to the injector by other methods or extracting the liquid from the area, the liquid or gas is sucked from the small hole at the front end of the syringe when the core rod is pulled out, and the liquid or gas is extruded when the core rod is pushed in; the process of the syringe and needle extracting or injecting a gas or liquid is called injection.

In the prior art, a nursing staff needs to suck the medicine by using an injector when injecting or dispensing the medicine, in the operation process, the nursing staff needs to fix a medicine bottle with one hand and hold the injector with the other hand to pull a piston to suck the medicine into an injector needle cylinder, but when the medicine is more, the nursing staff can feel aching and pain on the arm, the operation is troublesome, time and labor are wasted, and the working intensity of the nursing staff is increased; meanwhile, the hand of the nursing staff may contact the piston of the syringe in the process of repeated suction, so that the used or prepared liquid medicine is polluted, and the treatment efficiency is reduced.

Therefore, how to design an anti-pollution automatic suction injector is a problem which is urgently needed to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anti-pollution automatic suction syringe can alleviate nursing staff's working strength at the in-process of pumping the medicine repeatedly, can avoid simultaneously reaching easy operation and reduction working strength's effect because of the hand contacts the condition that the piston pollutes the medicine.

The above technical purpose of the present invention can be achieved by the following technical solutions: the device comprises a needle cylinder, wherein a liquid inlet hole is formed in the bottom end of the needle cylinder, a piston and a moving shaft connected with the piston are arranged in the needle cylinder, the moving shaft protrudes out of the top end of the needle cylinder and is provided with a moving handle, an outer shell fixedly connected with the needle cylinder is annularly arranged on the outer wall of the needle cylinder, a vertical movable groove is formed in the outer shell, and the movable groove extends to the bottom end of the needle cylinder from the top end of the needle cylinder; the movable groove is inserted with a slidable lifting structure, the adjusting end of the lifting mechanism is fixedly connected with the bottom of the movable groove, and the moving end of the lifting mechanism is fixedly connected with the moving handle.

Through adopting above-mentioned technical scheme, when this device used, the extraction medicine in-process, the back is arranged to the liquid in the cylinder to the greatest extent, elevating system then is in compression state to elevating system upwards promotes the piston from the bottom of cylinder again, thereby it is inside to inhale the cylinder with the medicine automatically, and accomplishes automatic suction, can alleviate nursing staff's working strength at the in-process of sucking the medicine repeatedly, can avoid simultaneously reaching easy operation and reduction working strength's the condition of medicine because of the hand contacts the piston.

The utility model discloses further set up to: the lifting mechanism comprises a loop bar, a sliding bar and a first spring, the sliding bar is inserted into the loop bar, the first spring is sleeved on the sliding bar, and the end part of the first spring is abutted against the bottom end of the loop bar; the bottom end of the sliding rod is connected with the movable groove, and the top end of the loop bar is connected with the movable handle.

By adopting the technical scheme, when the medicine in the needle cylinder is discharged, the loop bar compresses the spring, and when the medicine in the needle cylinder is discharged, the elastic force of the spring pushes the loop bar to move upwards, so that the piston moves upwards, and the medicine is sucked into the needle cylinder.

The utility model discloses further set up to: the upper half shaft of the sliding rod is uniformly provided with four first sliding strips along the circumferential direction of the upper half shaft, the four first sliding strips are spirally arranged along the axial direction of the outer rod, and the end part of the loop bar is provided with a through hole matched with the sliding rod; the lower half shaft of the sliding rod is provided with a threaded section, the threaded section is in threaded fit with a nut, the outer wall of the nut is provided with a sliding groove, the inner wall of the movable groove is provided with a second sliding strip in sliding fit with the sliding groove, and the second sliding strip extends from the bottom end of the movable groove to the upper half shaft of the sliding rod; two ends of the first spring are respectively abutted against the bottom end of the loop bar and the top end of the screw cap; the bottom of the sliding rod is rotatably connected with the bottom of the movable groove and cannot be separated from the movable groove.

Through adopting above-mentioned technical scheme, the through-hole is with the sliding fit who sets up the semi-axis on the slide bar of first draw runner, when making the loop bar take out and insert in the movable slot, the slide bar then rotates along self circumferencial direction, then, when the medicine in the discharge cylinder, be the shrink process between loop bar and the slide bar promptly, be the process that the slide bar rotated to the loop bar inside promptly, the slide bar then can produce the rotation, thereby make and set up the screw cap of the lower semi-axis complex of slide bar of screw thread section and move up, and screw cap and movable slot inner wall swing joint, make the screw cap only can rotate in vertical direction, thereby make loop bar bottom and screw cap take place the removal in opposite directions, all produce the compression to the both ends of first spring, reach laborsaving effect, then when the cylinder extracts the medicine, the elasticity of spring promotes loop bar and screw cap and takes place the motion of leaving mutually, the efficiency of extraction.

The utility model discloses further set up to: the lifting structure and the movable groove are at least provided with one group.

By adopting the technical scheme, the efficiency of extracting the medicine by the needle cylinder can be improved.

The utility model discloses further set up to: an arc-shaped groove is formed between every two adjacent first sliding strips, and the inner walls of the four sides of each through hole are inwards protruded to form arc-shaped blocks in sliding fit with the arc-shaped grooves.

Through adopting above-mentioned technical scheme, make the sliding fit effect between through-hole and the first draw runner better, prevent that first draw runner from damaging.

The utility model discloses further set up to: the edge of the top end of the needle cylinder protrudes outwards to form an annular auxiliary plate, the top end of the auxiliary plate is provided with a clamping piece, and the outer wall of the loop bar is provided with a plurality of clamping grooves; the clamping piece comprises two clamping strips and an operating piece which are symmetrically arranged; the two clamping strips are rotatably connected with the auxiliary plate through rotating shafts, notches are symmetrically formed in the end portions of the clamping strips, when the operating part reaches the limit position, the notches of the two clamping strips rotate to form a circular structure sleeved with the loop bar, and clamping columns clamped with the clamping grooves are arranged inside the notches; two one side that the card strip is relative is provided with the removal end complex bar groove that supplies the operating part.

By adopting the technical scheme, the loop bar is fixed when the operation piece is not used or extraction and discharge are required to be stopped, so that the loop bar cannot move upwards continuously, and when the operation piece moves in the strip-shaped groove and the action end of the operation piece is positioned on the left side of the rotating shaft, namely close to one end of the notch, the two clamping strips are separated from each other and are not sleeved with the outer wall of the loop bar; the action end of the operating piece is positioned on the right side of the rotating shaft and is the end far away from the notch, and the end parts of the two clamping strips provided with the notches are tightly propped against each other and are sleeved with the loop bar.

The utility model discloses further set up to: the operating piece comprises an operating block and a telescopic piece inserted with the operating block, and the telescopic piece comprises a telescopic rod and a second spring sleeved with the telescopic rod; two ends of the telescopic rod are respectively in sliding fit with the strip-shaped groove; the outer wall of the auxiliary plate is provided with a moving groove in sliding fit with the operation block.

Through adopting above-mentioned technical scheme, be convenient for remove the operation piece, then when fixed loop bar, direct activity operation piece can, easy operation.

To sum up, the utility model discloses following beneficial effect has: when the device is used, in the process of extracting the medicine, after the liquid in the needle cylinder is exhausted, the lifting mechanism is in a compression state, so that the lifting mechanism pushes the piston upwards from the bottom end of the needle cylinder, the medicine is automatically sucked into the needle cylinder, the automatic suction is completed, the working strength of nursing personnel can be reduced in the process of repeatedly sucking the medicine, meanwhile, the situation that the medicine is polluted due to the fact that hands contact the piston can be avoided, and the effects of simplicity in operation and reduction of the working strength are achieved; through-hole and the sliding fit who sets up the semi-axis on the slide bar of first draw runner, when making the loop bar take out and insert in the movable groove, the slide bar then rotates along self circumferencial direction, then, when the medicine in the discharge cylinder, be the shrink process between loop bar and the slide bar promptly, be the process that the slide bar rotated to the loop bar inside promptly, and the slide bar then can produce the rotation, thereby make with the slide bar that sets up the screw thread section under the semi-axis complex nut rebound, and nut and movable groove inner wall swing joint, make the nut only can rotate in vertical direction, thereby make loop bar bottom and nut take place removal in opposite directions, all produce the compression to the both ends of first spring, reach laborsaving effect, when the cylinder extracts the medicine, the elasticity of spring promotes loop bar and nut and takes place the motion of leaving, improve the efficiency of extraction.

Drawings

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

Fig. 1 is a schematic structural diagram of the whole in the embodiment of the present invention;

FIG. 2 is a schematic structural view of an upper end surface of an auxiliary plate according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure at C in FIG. 2;

FIG. 5 is a schematic view of the structure taken along line A-A;

fig. 6 is a schematic structural diagram of a through hole in an embodiment of the present invention.

In the figure: 1. a needle cylinder; 11. a liquid inlet hole; 12. a piston; 13. a movable shaft; 14. a movable handle; 15. an outer housing; 16. a movable groove; 17. a loop bar; 18. a slide bar; 19. a first spring; 21. a first slide bar; 22. a through hole; 23. a threaded segment; 24. a nut; 25. a chute; 26. a second slide bar; 27. an arc-shaped slot; 28. an arc-shaped block; 29. an auxiliary plate; 31. a card slot; 32. clamping the strip; 33. a notch; 34. clamping the column; 35. a strip-shaped groove; 36. an operation block; 37. a telescopic rod; 38. a second spring; 39. the slot is moved.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b): an anti-pollution automatic suction injector, as shown in figure 1, comprises a needle cylinder 1, wherein a liquid inlet hole 11 is arranged at the bottom end of the needle cylinder 1, a piston 12 and a moving shaft 13 connected with the piston 12 are arranged inside the needle cylinder 1, the moving shaft 13 protrudes out of the top end of the needle cylinder 1 and is provided with a moving handle 14, an outer wall of the needle cylinder 1 is annularly provided with an outer shell 15 fixedly connected with the outer shell, the outer shell 15 is provided with a vertical moving groove 16, and the moving groove 16 extends from the top end of the needle cylinder 1 to the bottom end of the needle cylinder 1; the movable groove 16 is inserted with a slidable lifting structure, the adjusting end of the lifting mechanism is fixedly connected with the bottom of the movable groove 16, and the moving end of the lifting mechanism is fixedly connected with the movable handle 14. When the device is used, in the process of extracting the medicine, after the liquid in the needle cylinder 1 is discharged, the lifting mechanism is in a compression state, so that the lifting mechanism pushes the piston 12 upwards from the bottom end of the needle cylinder 1, the medicine is automatically sucked into the needle cylinder 1, automatic suction is completed, the working strength of nursing personnel can be relieved in the process of repeatedly sucking the medicine, meanwhile, the situation that the medicine is polluted due to the fact that the hand contacts the piston 12 can be avoided, and the effects of being simple in operation and reducing the working strength are achieved.

As shown in fig. 1 and fig. 3, the lifting mechanism includes a loop bar 17, a sliding bar 18 and a first spring 19, the sliding bar 18 is inserted into the loop bar 17, the first spring 19 is sleeved on the sliding bar 18, and an end of the first spring 19 is abutted against a bottom end of the loop bar 17; the bottom end of the sliding rod 18 is connected with the movable groove 16, and the top end of the loop bar 17 is connected with the movable handle 14. The sleeve 17 thus compresses the spring as the medicament in the barrel 1 is expelled, and as the medicament in the barrel 1 is expelled, the spring force of the spring will urge the sleeve 17 to move upwardly, thereby moving the piston 12 upwardly and thereby drawing medicament into the barrel 1.

As shown in fig. 1 and 3, the upper half shaft of the sliding rod 18 is uniformly provided with four first sliding strips 21 along the circumferential direction of the upper half shaft, the four first sliding strips 21 are spirally arranged along the axial direction of the outer rod, and the end of the loop bar 17 is provided with a through hole 22 matched with the sliding rod 18; a threaded section 23 is arranged on the lower half shaft of the sliding rod 18, a screw cap 24 is in threaded fit with the threaded section 23, a sliding groove 25 is arranged on the outer wall of the screw cap 24, a second sliding strip 26 in sliding fit with the sliding groove 25 is arranged on the inner wall of the movable groove 16, and the second sliding strip 26 extends from the bottom end of the movable groove 16 to the upper half shaft of the sliding rod 18; the two ends of the first spring 19 are respectively abutted against the bottom end of the loop bar 17 and the top end of the screw cap 24; the bottom end of the slide bar 18 is rotatably connected to the bottom end of the movable groove 16 without being separated therefrom. The through hole 22 is in sliding fit with an upper half shaft of the slide bar 18 provided with the first slide bar 21, so that when the loop bar 17 is inserted into the movable groove 16, the slide bar 18 rotates along the circumferential direction of the slide bar 18, and then when the medicine in the syringe 1 is discharged, the shrinkage process between the loop bar 17 and the slide bar 18 is the process that the slide bar 18 rotates to the inside of the loop bar 17, and the slide bar 18 rotates, so that the nut 24 matched with the lower half shaft of the slide bar 18 provided with the thread section 23 moves upwards, and the nut 24 is movably connected with the inner wall of the movable groove 16, so that the nut 24 only rotates in the vertical direction, the bottom end of the loop bar 17 and the nut 24 move in the opposite direction, both ends of the first spring 19 are compressed, and the labor-saving effect is achieved, and when the medicine is extracted from the syringe 1, the elasticity of the spring pushes the loop bar 17 and the nut 24 to move away from each other, and the extraction efficiency is improved. The four sliding strips are in sliding fit with the square through hole 22, when the outer rod rotates, the sliding strips are matched with the four corners of the through hole 22, and the gaps between the adjacent sliding strips are matched with the four sides of the through hole 22, so that the sliding fit is formed, and the purpose of changing the height is achieved

As shown in fig. 1, at least one set of the elevating structure and the movable groove 16 is provided. The efficiency of extracting the medicine from the cylinder 1 can be improved. Before the first spring 19 of the elevating mechanism is compressed to the limit position, the piston 12 is already pressed against the bottom end of the inside of the cylinder 1. It is convenient to completely discharge the medicine in the cylinder 1.

As shown in fig. 1 and 6, an arc-shaped groove 27 is provided between adjacent first sliding bars 21, and four inner walls of the through hole 22 are all protruded inwards to form an arc-shaped block 28 which is in sliding fit with the arc-shaped groove 27. The sliding fit effect between the through hole 22 and the first slide bar 21 is better, and the first slide bar 21 is prevented from being damaged.

As shown in fig. 2, 4 and 5, the top edge of the needle cylinder 1 protrudes outwards to form an annular auxiliary plate 29, the top end of the auxiliary plate 29 is provided with a clamping piece, and the outer wall of the loop bar 17 is provided with a plurality of clamping grooves 31; the clamping piece comprises two clamping strips 32 and an operating piece which are symmetrically arranged; the two clamping strips 32 are rotatably connected with the auxiliary plate 29 through rotating shafts, notches 33 are symmetrically arranged at the end parts of the clamping strips 32, when the operating element reaches the limit position, the notches 33 of the two clamping strips 32 rotate to form a circular structure sleeved with the loop bar 17, and clamping columns 34 clamped with the clamping grooves 31 are arranged inside the notches 33; the opposite side of the two clamping strips 32 is provided with a strip-shaped groove 35 for matching the moving end of the operating part. When the operating part moves in the strip-shaped groove 35, when the acting end of the operating part is positioned on the left side of the rotating shaft, namely, when the acting end is close to one end of the notch 33, the two clamping strips 32 are separated from each other and are not sleeved with the outer wall of the loop bar 17; the action end of the operation member is located on the right side of the rotating shaft and is the end far away from the notch 33, and the end parts of the two clamping strips 32 provided with the notches 33 are tightly propped against each other and are sleeved with the loop bar 17.

As shown in fig. 2, 4 and 5, the operating member includes an operating block 36 and an extensible member inserted into the operating block 36, and the extensible member includes an extensible rod 37 and a second spring 38 sleeved with the extensible rod; the two ends of the telescopic rod 37 are respectively in sliding fit with the strip-shaped grooves 35; the outer wall of the auxiliary plate 29 is provided with a moving groove 39 slidably fitted with the operation block 36. The operation block 36 is convenient to move, and when the loop bar 17 is fixed, the operation block 36 can be directly moved, so that the operation is simple.

The working principle is as follows: when the device is used, in the process of extracting the medicine, after the liquid in the needle cylinder 1 is discharged, the lifting mechanism is in a compression state, so that the lifting mechanism pushes the piston 12 upwards from the bottom end of the needle cylinder 1, the medicine is automatically sucked into the needle cylinder 1, automatic suction is completed, the working strength of nursing personnel can be relieved in the process of repeatedly sucking the medicine, meanwhile, the situation that the medicine is polluted due to the fact that the hand contacts the piston 12 can be avoided, and the effects of being simple in operation and reducing the working strength are achieved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides an anti-pollution automatic suction syringe, includes cylinder (1), and the bottom of cylinder (1) is provided with feed liquor hole (11), and the inside of cylinder (1) is provided with piston (12) and removal axle (13) of being connected with piston (12), and the top that removal axle (13) stretches out cylinder (1) suddenly is provided with removal handle (14), characterized by: an outer shell (15) fixedly connected with the needle cylinder (1) is annularly arranged on the outer wall of the needle cylinder (1), a vertical movable groove (16) is formed in the outer shell (15), and the movable groove (16) extends from the top end of the needle cylinder (1) to the bottom end of the needle cylinder (1); the movable groove (16) is inserted with a slidable lifting mechanism, the adjusting end of the lifting mechanism is fixedly connected with the bottom of the movable groove (16), and the moving end of the lifting mechanism is fixedly connected with the moving handle (14).

2. The contamination resistant auto-aspirating syringe according to claim 1, wherein: the lifting mechanism comprises a loop bar (17), a sliding bar (18) and a first spring (19), the sliding bar (18) is inserted into the loop bar (17), the first spring (19) is sleeved on the sliding bar (18), and the end part of the first spring (19) is abutted to the bottom end of the loop bar (17); the bottom end of the sliding rod (18) is connected with the movable groove (16), and the top end of the loop bar (17) is connected with the movable handle (14).

3. The contamination resistant auto-aspirating syringe according to claim 2, wherein: the upper half shaft of the sliding rod (18) is uniformly provided with four first sliding strips (21) along the circumferential direction of the upper half shaft, the four first sliding strips (21) are spirally arranged along the axial direction of the outer rod, and the end part of the loop bar (17) is provided with a through hole (22) matched with the sliding rod (18); a threaded section (23) is arranged on the lower half shaft of the sliding rod (18), a nut (24) is in threaded fit with the threaded section (23), a sliding groove (25) is formed in the outer wall of the nut (24), a second sliding strip (26) in sliding fit with the sliding groove (25) is arranged on the inner wall of the movable groove (16), and the second sliding strip (26) extends to the upper half shaft of the sliding rod (18) from the bottom end of the movable groove (16); two ends of the first spring (19) are respectively abutted against the bottom end of the loop bar (17) and the top end of the screw cap (24); the bottom end of the sliding rod (18) is rotatably connected with the bottom end of the movable groove (16) and cannot be separated.

4. The contamination resistant auto-aspirating syringe according to claim 3, wherein: at least one group of lifting mechanisms and movable grooves (16) are arranged.

5. The anti-contamination automatic aspiration syringe of claim 4, wherein: an arc-shaped groove (27) is formed between every two adjacent first sliding strips (21), and the four inner walls of the through holes (22) are all inwards protruded to form arc-shaped blocks (28) in sliding fit with the arc-shaped grooves (27).

6. The contamination resistant auto-aspirating syringe according to claim 5, wherein: the edge of the top end of the needle cylinder (1) protrudes outwards to form an annular auxiliary plate (29), the top end of the auxiliary plate (29) is provided with a clamping piece, and the outer wall of the loop bar (17) is provided with a plurality of clamping grooves (31); the clamping piece comprises two clamping strips (32) and an operating piece which are symmetrically arranged; the two clamping strips (32) are rotatably connected with the auxiliary plate (29) through rotating shafts, notches (33) are symmetrically arranged at the end parts of the clamping strips (32), when the operating part reaches the limit position, the notches (33) of the two clamping strips (32) rotate to form a circular structure sleeved with the loop bar (17), and clamping columns (34) clamped with the clamping grooves (31) are arranged inside the notches (33); two the relative one side of card strip (32) is provided with the strip groove (35) that supplies the removal end complex of operating parts.

7. The contamination resistant auto-aspirating syringe according to claim 6, wherein: the operating piece comprises an operating block (36) and an expansion piece inserted with the operating block (36), and the expansion piece comprises an expansion and contraction rod (37) and a second spring (38) sleeved with the expansion and contraction rod; the two ends of the telescopic rod (37) are respectively in sliding fit with the strip-shaped groove (35); the outer wall of the auxiliary plate (29) is provided with a moving groove (39) which is matched with the operation block (36) in a sliding way.

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