CN214969103U - Dispensing syringe convenient to pull open - Google Patents
Dispensing syringe convenient to pull open Download PDFInfo
- Publication number
- CN214969103U CN214969103U CN202120066953.3U CN202120066953U CN214969103U CN 214969103 U CN214969103 U CN 214969103U CN 202120066953 U CN202120066953 U CN 202120066953U CN 214969103 U CN214969103 U CN 214969103U
- Authority
- CN
- China
- Prior art keywords
- syringe
- piston rod
- needle
- needle cylinder
- handle
- 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.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 210000003811 finger Anatomy 0.000 description 31
- 238000001802 infusion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 210000005224 forefinger Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 229930182555 Penicillin Natural products 0.000 description 1
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a dispensing injector which is convenient to pull open, comprising a needle head, a needle cylinder, a piston component, a pushing device and a protective sleeve. Compare with the hand posture when ordinary syringe takes out the liquid medicine, the utility model discloses the hand posture is more comfortable, is convenient for exert oneself, and the design of ring has further promoted the finger and has colluded the comfort level when getting, simple structure, low in manufacturing cost, and the hand posture is comfortable when taking out the liquid medicine, is convenient for exert oneself, and the piston rod has still been guaranteed to the protective sheath not contaminated.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to syringe that dispenses that conveniently pulls open.
Background
The main work of intravenous infusion dispensing is to draw out the medicament in an ampoule bottle or a penicillin bottle and inject the medicament into an infusion bottle, in order to ensure that the medicament in the medicament bottle is successfully drawn out, a left hand is required to hold the medicament bottle, a right hand is required to hold the syringe, but the dispensing syringe has larger capacity and larger resistance, and a handle which can be pulled open by a single hand is not arranged, so that the dispensing syringe is inconvenient to pull open by the single hand, particularly, when a piston is positioned at the innermost side of a needle cylinder, a piston rod only leaks a short section and is more difficult to pull open, therefore, before the medicament is drawn out by medical workers, the piston rod is pulled out by one section to ensure the convenience of force application, but the single suction volume of the syringe is reduced, if the piston is pulled to the outermost side, the medicament is not drawn out, the piston rod has to be stopped to push to discharge the internal air, the working efficiency is reduced, the medicament is just pushed out by too much, and waste is caused, if the pushing is too little, the capacity of the syringe cannot be fully utilized, and in addition, the piston rod cannot be touched in the dispensing process, so that the liquid medicine is prevented from being polluted, and the piston rod of the existing syringe is extremely easy to touch. There is therefore a need to design a dispensing syringe that is easy to pull open to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a convenient syringe that dispenses who pulls open to prior art not enough, adopts following technical scheme:
a dispensing injector convenient to pull open comprises a needle head 1, a needle cylinder 3, a piston assembly, an ejector and a protective sleeve 7;
the piston assembly comprises a piston 13, a piston rod 5 and a piston rod handle 14, one end of the piston rod 5 is fixedly connected with the piston 13, the other end of the piston rod is fixedly connected with the piston rod handle 14, a positioning groove 15 is formed in the inner side wall of the piston rod handle 14, and a compression screw 16 is arranged on the outer side edge of the positioning groove 15;
the protective sleeve 7 is sleeved outside the piston rod 5, one end of the protective sleeve is fixedly connected with the piston rod handle 14, and the other end of the protective sleeve is fixedly connected with one end of the needle cylinder 3 away from the needle head;
the syringe 3 is close to one end of the syringe 1 and is equipped with a syringe needle mounting tube 2, the syringe needle 1 is detachably connected with the syringe needle 3 through the syringe needle mounting tube 2, the other end of the syringe needle 3 is equipped with a syringe needle short handle A and a syringe needle long handle B, the outer wall of the syringe needle 3 on the same side with the syringe needle long handle B is provided with a slide way 17 from the syringe needle 1 to the syringe needle long handle B, the slide way 17 penetrates through the syringe needle long handle B, the cross section of the slide way 17 is arc concentric with the syringe needle 3, the part of the outer wall of the slide way 17 close to the syringe needle long handle B is provided with a U-shaped groove 18 along the sliding direction (from the syringe needle 1 to the syringe needle long handle B), the U-shaped groove 18 is convex towards the outer side of the outer wall of the slide way 17, and the part of the outer wall of the slide way 17 far away from the syringe needle long handle B is provided with a sliding groove 19;
the ejector is composed of a push rod 8, a finger hook 11 and a finger ring 10, the push rod 8 is an arc-shaped plate matched with the slide way 17 for use, the push rod 8 is arranged in the slide way 17 in a sliding mode, a protrusion 12 is arranged on the outer wall of the push rod 8 along the length direction of the push rod, the protrusion 12 slides in a U-shaped groove 18 to play a reinforcing role, the protrusion 12 is not arranged at the tail end, close to the long handle B of the syringe, of the push rod 8 so that the push rod 8 can be conveniently inserted into the positioning groove 15, the finger hook 11 is arranged at one end, close to the needle head 1, of the push rod 8, and the finger ring 10 is located on one side, close to the long handle B of the syringe, of the finger hook 11 and is arranged close to the finger hook 11.
Further, the positioning groove 15 is shaped like a circular arc with the same cross section as the slide way 17 and is matched with the push rod 8. The part of the push rod 8 inserted into the positioning groove 15 is not provided with the bulge 12, and when the push rod 8 is used, the push rod 8 is inserted into the positioning groove 15 and then is fixed by the compression screw 16.
Furthermore, a guide plate 6 is arranged on one side, opposite to the positioning groove 15, of the piston rod 5 along the length direction of the piston rod, the cross section of the guide plate 6 is arc-shaped, and the guide plate 6 is matched with the inner wall of the needle cylinder 3 to prevent the piston rod 5 from being seriously inclined in the process that the opener pushes the piston rod 5.
Further, syringe short handle A is shorter, and syringe long handle B is longer and to keeping away from the direction bending of syringe needle 1, conveniently grips.
Further, the protective sleeve 7 is made of a PVC film and is cylindrical.
Further, the ring 10 is made of silica gel or chemical fiber.
The using method comprises the following steps: the needle head 1 is inserted into the medicine bottle by holding the long handle B of the syringe by the right hand, because the finger hook 11 is far away from the finger in the initial state, all the finger hooks 10 are hooked by the forefinger and pulled backwards firstly, so as to drive the piston 13 to move and extract the medicine liquid, when the forefinger can easily hook the finger hook 11, the finger hook 11 is hooked and pulled backwards continuously, because the finger ring 10 in the initial state is close to the syringe handle B, the finger ring 10 touches the syringe handle B before the syringe is fully extracted, the finger hook 11 can be hooked and pulled backwards at the moment, the finger ring 10 made of silica gel or chemical fiber is flattened until the syringe is fully extracted, the dispensing syringe is sometimes installed on the infusion pump for use, at the moment, the compression screw can be loosened, the ejector can be detached and installed on the infusion pump like the traditional syringe, the used dispensing syringe can also be used as a collection container with low hygienic requirements, such as urine collection, but the piston rod 5 and the piston 13 need to be pulled out, at this point, the ejector can be removed, the protective sleeve made of PVC material is broken, and the piston rod 5 and the piston 13 are removed.
Compared with the prior art, the utility model discloses following beneficial effect has:
compare with the hand posture when ordinary syringe takes out the liquid medicine, the utility model discloses the hand posture is more comfortable, is convenient for exert oneself, and the design of ring has further promoted the comfort level when the finger colludes and gets, simple structure, low in manufacturing cost. The hand posture is comfortable when the liquid medicine is pumped out, the force is convenient to exert, and the piston rod is not polluted by the protective sleeve.
Drawings
FIG. 1 is a view of the structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an enlarged view of the syringe of the present invention;
fig. 4 is a cross-sectional view of the piston rod of the present invention;
reference numerals: 1-needle head, 2-needle head installation tube, 3-needle cylinder, 4-needle cylinder short handle A, 5-piston rod, 6-guide plate, 7-protective sleeve, 8-push rod, 9-needle cylinder long handle B, 10-finger ring, 11-finger hook, 12-bulge, 13-piston, 14-piston rod handle, 15-positioning groove, 16-compression screw, 17-slideway, 18-U-shaped groove and 19-chute.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific embodiments:
as shown in fig. 1 and 2, a dispensing syringe convenient to pull open comprises a needle head 1, a needle cylinder 3, a piston assembly, an ejector and a protective sleeve 7;
the piston assembly comprises a piston 13, a piston rod 5 and a piston rod handle 14, one end of the piston rod 5 is fixedly connected with the piston 13, the other end of the piston rod is fixedly connected with the piston rod handle 14, a positioning groove 15 is formed in the inner side wall of the piston rod handle 14, and a compression screw 16 is arranged on the outer side edge of the positioning groove 15;
the protective sleeve 7 is sleeved outside the piston rod 5, one end of the protective sleeve is fixedly connected with the piston rod handle 14, and the other end of the protective sleeve is fixedly connected with one end of the needle cylinder 3 away from the needle head;
the syringe 3 is close to one end of the syringe 1 and is equipped with a syringe needle mounting tube 2, the syringe needle 1 is detachably connected with the syringe needle 3 through the syringe needle mounting tube 2, the other end of the syringe needle 3 is equipped with a syringe needle short handle A and a syringe needle long handle B, the outer wall of the syringe needle 3 on the same side with the syringe needle long handle B is provided with a slide way 17 from the syringe needle 1 to the syringe needle long handle B, the slide way 17 penetrates through the syringe needle long handle B, the cross section of the slide way 17 is arc concentric with the syringe needle 3, the part of the outer wall of the slide way 17 close to the syringe needle long handle B is provided with a U-shaped groove 18 along the sliding direction (from the syringe needle 1 to the syringe needle long handle B), the U-shaped groove 18 is convex towards the outer side of the outer wall of the slide way 17, and the part of the outer wall of the slide way 17 far away from the syringe needle long handle B is provided with a sliding groove 19;
the ejector is composed of a push rod 8, a finger hook 11 and a finger ring 10, the push rod 8 is an arc-shaped plate matched with the slide way 17 for use, the push rod 8 is arranged in the slide way 17 in a sliding mode, a protrusion 12 is arranged on the outer wall of the push rod 8 along the length direction of the push rod, the protrusion 12 slides in a U-shaped groove 18 to play a reinforcing role, the protrusion 12 is not arranged at the tail end, close to the long handle B of the syringe, of the push rod 8 so that the push rod 8 can be conveniently inserted into the positioning groove 15, the finger hook 11 is arranged at one end, close to the needle head 1, of the push rod 8, and the finger ring 10 is located on one side, close to the long handle B of the syringe, of the finger hook 11 and is arranged close to the finger hook 11.
The positioning groove 15 is in the shape of a circular arc with the same cross section as the slide way 17 and is matched with the push rod 8. The part of the push rod 8 inserted into the positioning groove 15 is not provided with the bulge 12, and when the push rod 8 is used, the push rod 8 is inserted into the positioning groove 15 and then is fixed by the compression screw 16.
One side of the piston rod 5 opposite to the positioning groove 15 is provided with a guide plate 6 along the length direction of the piston rod, the cross section of the guide plate 6 is arc-shaped, and the guide plate 6 is matched with the inner wall of the needle cylinder 3 to prevent the piston rod 5 from being seriously inclined in the process of pushing the piston rod 5 by the ejector.
The short handle A of cylinder is shorter, and the long handle B of cylinder is longer and crooked to the direction of keeping away from syringe needle 1, conveniently grips.
The protective sleeve 7 is made of a PVC film and is cylindrical.
The ring 10 is made of silica gel or chemical fiber.
The using method comprises the following steps: the needle head 1 is inserted into the medicine bottle by holding the long handle B of the syringe by the right hand, because the finger hook 11 is far away from the finger in the initial state, all the finger hooks 10 are hooked by the forefinger and pulled backwards firstly, so as to drive the piston 13 to move and extract the medicine liquid, when the forefinger can easily hook the finger hook 11, the finger hook 11 is hooked and pulled backwards continuously, because the finger ring 10 in the initial state is close to the syringe handle B, the finger ring 10 touches the syringe handle B before the syringe is fully extracted, the finger hook 11 can be hooked and pulled backwards at the moment, the finger ring 10 made of silica gel or chemical fiber is flattened until the syringe is fully extracted, the dispensing syringe is sometimes installed on the infusion pump for use, at the moment, the compression screw can be loosened, the ejector can be detached and installed on the infusion pump like the traditional syringe, the used dispensing syringe can also be used as a collection container with low hygienic requirements, such as urine collection, but the piston rod 5 and the piston 13 need to be pulled out, at this point, the ejector can be removed, the protective sleeve made of PVC material is broken, and the piston rod 5 and the piston 13 are removed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a dispense syringe that conveniently pulls open which characterized in that: comprises a needle head (1), a needle cylinder (3), a piston component, an ejector and a protective sleeve (7);
the piston assembly consists of a piston (13), a piston rod (5) and a piston rod handle (14), one end of the piston rod (5) is fixedly connected with the piston (13), the other end of the piston rod is fixedly connected with the piston rod handle (14), a positioning groove (15) is formed in the inner side wall of the piston rod handle (14), and a compression screw (16) is arranged on the outer side edge of the positioning groove (15);
the protective sleeve (7) is sleeved outside the piston rod (5), one end of the protective sleeve is fixedly connected with the piston rod handle (14), and the other end of the protective sleeve is fixedly connected with one end of the needle cylinder (3) far away from the needle head;
a needle head mounting tube (2) is arranged at one end of the needle cylinder (3) close to the needle head (1), the needle head (1) is detachably connected with the needle cylinder (3) through the needle head mounting tube (2), the other end of the syringe (3) is provided with a syringe short handle A (4) and a syringe long handle B (9), a slide way (17) from the needle head (1) to the long handle B of the needle cylinder is arranged on the outer wall of the needle cylinder (3) at the same side with the long handle B (9) of the needle cylinder, and the slideway (17) penetrates through the long handle B (9) of the needle cylinder, the cross section of the slideway (17) is in a circular arc shape concentric with the needle cylinder (3), a U-shaped groove (18) along the sliding direction is arranged on the part of the outer wall of the slideway (17) close to the long handle B of the needle cylinder, the U-shaped groove (18) is convex towards the outer side of the outer wall of the slide way (17), and a sliding groove (19) is formed in the part, away from the long handle B of the needle cylinder, of the outer wall of the slide way (17);
the ejector is composed of a push rod (8), a finger hook (11) and a finger ring (10), the push rod (8) is an arc-shaped plate matched with a slide way (17) for use, the push rod (8) is arranged in the slide way (17) in a sliding mode, a protrusion (12) is arranged on the outer wall of the push rod (8) along the length direction of the push rod, the protrusion (12) slides in a U-shaped groove (18) to play a reinforcing role, the tail end of the push rod (8) close to a needle cylinder long handle B is not provided with the protrusion (12) to facilitate the insertion of the push rod (8) into a positioning groove (15), the finger hook (11) is arranged at one end of the push rod (8) close to a needle head (1), and the finger ring (10) is arranged on one side of the finger hook (11) close to the needle cylinder long handle B and is tightly arranged on the finger hook (11).
2. A dispensing syringe that facilitates pulling apart of a syringe according to claim 1, wherein: the positioning groove (15) is in the shape of a circular arc which is the same as the cross section of the slide way (17), and is matched with the push rod (8).
3. A dispensing syringe that facilitates pulling apart of a syringe according to claim 1, wherein: one side of the piston rod (5) opposite to the positioning groove (15) is provided with a guide plate (6) along the length direction of the piston rod, the cross section of the guide plate (6) is arc-shaped, and the guide plate (6) is matched with the inner wall of the needle cylinder (3).
4. A dispensing syringe that facilitates pulling apart of a syringe according to claim 1, wherein: the short handle A (4) of the syringe is shorter, and the long handle B (9) of the syringe is longer and is bent towards the direction far away from the needle head (1).
5. A dispensing syringe that facilitates pulling apart of a syringe according to claim 1, wherein: the protective sleeve (7) is made of a PVC film and is cylindrical.
6. A dispensing syringe that facilitates pulling apart of a syringe according to claim 1, wherein: the ring (10) is made of silica gel or chemical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066953.3U CN214969103U (en) | 2021-01-12 | 2021-01-12 | Dispensing syringe convenient to pull open |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066953.3U CN214969103U (en) | 2021-01-12 | 2021-01-12 | Dispensing syringe convenient to pull open |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214969103U true CN214969103U (en) | 2021-12-03 |
Family
ID=79139754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120066953.3U Expired - Fee Related CN214969103U (en) | 2021-01-12 | 2021-01-12 | Dispensing syringe convenient to pull open |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214969103U (en) |
-
2021
- 2021-01-12 CN CN202120066953.3U patent/CN214969103U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |