CN216148757U - Disposable syringe - Google Patents
Disposable syringe Download PDFInfo
- Publication number
- CN216148757U CN216148757U CN202121433980.6U CN202121433980U CN216148757U CN 216148757 U CN216148757 U CN 216148757U CN 202121433980 U CN202121433980 U CN 202121433980U CN 216148757 U CN216148757 U CN 216148757U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- piston
- annular groove
- inner sleeve
- piston 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 description 8
- 239000003814 drug Substances 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable syringe, which comprises a syringe, a sleeve and a piston rod, wherein the syringe comprises an inner sleeve and an outer sleeve sleeved on the inner sleeve, one end of the piston rod is arranged in the inner sleeve in a sliding way, and the other end of the piston rod extends out of the inner sleeve and is connected with a handle; an annular groove is formed between the inner sleeve and the outer sleeve, an inner thread is arranged on the inner wall of the outer sleeve, an outer thread matched with the inner thread is arranged on the outer wall of the sleeve, one end of the sleeve is inserted into the annular groove, and the other end of the sleeve extends out of the annular groove to be connected with the piston rod. The piston rod is pushed in by the rotating sleeve, so that the injection operation is completed. Compared with direct injection, the utility model saves labor. And utilize sleeve and outer tube threaded connection, the speed of holding the injection better improves patient's comfort level.
Description
Technical Field
The utility model relates to a syringe, in particular to a disposable syringe.
Background
Syringes are a common medical device. The existing injector consists of a syringe with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid or extracting the liquid into an area which cannot be accessed by other methods or from the area, wherein the liquid is sucked from the small hole at the front end of the syringe when the core rod is extracted, and the liquid or gas is extruded when the core rod is pushed in. Medical care personnel need to frequently use the injector to carry out injection operation, the arm of force of the injector is short, the pushing is more laborious, and especially, the operation of injecting liquid with higher viscosity is more laborious; after a long time, the fingers are sore and have calluses, and can seriously break the skin of the hand and damage muscle tendons of the fingers, so that the fingers can recover for a long time.
A disposable injector needs to be designed, the core rod is pushed in by rotating the core rod, and labor is saved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a disposable injector, which realizes the pushing of a core rod by rotating the core rod and saves labor.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the disposable syringe comprises a syringe, a sleeve and a piston rod, wherein the syringe comprises an inner sleeve and an outer sleeve sleeved on the inner sleeve, one end of the piston rod is slidably arranged in the inner sleeve, and the other end of the piston rod extends out of the inner sleeve and is connected with a handle; an annular groove is formed between the inner sleeve and the outer sleeve, an inner thread is arranged on the inner wall of the outer sleeve, an outer thread matched with the inner thread is arranged on the outer wall of the sleeve, one end of the sleeve is inserted into the annular groove, and the other end of the sleeve extends out of the annular groove to be connected with the piston rod.
As a further improvement of the above technical solution:
the piston rod comprises a piston, a connecting rod and a rotating rod, the piston is slidably arranged in the inner sleeve and divides the inner sleeve into two parts, one end of the connecting rod is connected with the piston, the other end of the connecting rod is provided with a rotating hole, the rotating rod is rotatably inserted into the rotating hole, and the handle is arranged on the rotating rod; the sleeve is fixedly arranged at the joint of the handle and the rotating rod. Not only saves labor, but also prevents the piston from rotating along with the handle. But also avoids enlarging the clearance between the piston and the inner sleeve pipe wall, which leads to the overflow of liquid from the clearance.
Furthermore, the sleeve and the rotating rod are integrally formed. Not only the sound construction, the sleeve also rotates when the dwang rotates moreover.
Furthermore, a sealing plate for sealing the annular groove is arranged at the bottom of the annular groove, and air holes are formed in the sealing plate. The pressure intensity inside and outside the annular groove is the same, and the sleeve moves smoothly.
The piston both sides arch has the slider, and the position that the interior sleeve pipe inner wall is equipped with the spout for the slider, and the slider slidable card is gone into in the spout. When the handle is prevented from rotating, the piston also rotates along with the handle.
Furthermore, the sliding block is hemispherical. The sliding block can slide in the sliding groove conveniently.
The handle is covered with a soft rubber mat. Not only avoid skidding, but also protect the fingers of the user.
The outer surface of the outer sleeve is provided with fins, and the fins are covered with soft rubber pads. The handle is convenient to rotate.
Compared with the prior art, the utility model has the advantages that:
1. the piston rod is pushed in by the rotating sleeve, so that the injection operation is completed. Compared with direct injection, the utility model saves labor. And utilize sleeve and outer tube threaded connection, the speed of holding the injection better improves patient's comfort level.
2. The injection tube adopts a double-layer sleeve, and after the piston is pushed into the inner sleeve by using the handle, the sleeve also enters the annular groove along with the piston. Thereby realizing isolating the interior of the inner sleeve from the piston rod and avoiding causing the interior of the inner sleeve to be polluted and causing the liquid medicine to deteriorate.
Drawings
Fig. 1 is a structural view of a disposable syringe.
Fig. 2 is a cross-sectional view of a disposable syringe.
Fig. 3 is a structural view of the syringe.
Fig. 4 is a structural view of the piston rod.
Description of reference numerals:
1. an injection tube; 2. a sleeve; 3. a handle; 4. a fin; 5. a piston rod; 11. an outer sleeve; 12. an inner sleeve; 13. an annular groove; 14. a chute; 51. a piston; 52. a connecting rod; 53. rotating the rod; 54. closing the plate; 55. air holes are formed; 56. a slide block.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, there will now be described in detail, with reference to the accompanying drawings, a non-limiting detailed description of the present invention.
As shown in fig. 1 to 4, the disposable syringe of the present embodiment includes a syringe 1, a sleeve 2 and a piston rod 5, the syringe 1 includes an inner sleeve 12 and an outer sleeve 11 sleeved on the inner sleeve 12, one end of the piston rod 5 is slidably disposed in the inner sleeve 12, and the other end of the piston rod extends out of the inner sleeve 12 and is connected to a handle 3; form annular groove 13 between interior sleeve pipe 12 and the outer tube 11, the outer tube 11 inner wall is equipped with the internal thread, and 2 outer walls of sleeve are equipped with the external screw thread that matches with the internal thread, and 2 one end of sleeve insert in annular groove 13, and the other end stretches out annular groove 13 and is connected with piston rod 5 outward. The bottom of the annular groove 13 is provided with a sealing plate 54 for sealing the annular groove 13, and the sealing plate 54 is provided with a vent hole 55. The handle 3 is covered with a soft rubber pad. The outer surface of the outer sleeve 11 is provided with fins 4, and the fins 4 are covered with soft rubber pads.
The piston rod 5 comprises a piston 51, a connecting rod 52 and a rotating rod 53, the piston 51 is slidably arranged in the inner sleeve 12 and divides the inner sleeve into two parts, one end of the connecting rod 52 is connected with the piston 51, the other end of the connecting rod is provided with a rotating hole, the rotating rod 53 is rotatably inserted into the rotating hole, and the handle 3 is arranged on the rotating rod 53; the sleeve 2 is fixedly mounted at the junction of the handle 3 and the rotating rod 53. The sleeve 2 is integrally formed with the rotating lever 53. The piston 51 is provided with a sliding block 56 protruding from both sides, the inner wall of the inner sleeve 12 is provided with a sliding slot 14 at a position corresponding to the sliding block 56, and the sliding block 56 is slidably clamped in the sliding slot 14. The slider 56 is hemispherical.
For the use of this example, reference is made to the following steps:
in use, the piston 51 is first pushed into the inner tube 12 by the handle 3. Then, the sleeve 2 also moves with the piston 51 into the annular groove 13. Thereby realizing the isolation of the inside of the inner sleeve 12 from the outside and avoiding the pollution in the inner sleeve 12 and the deterioration of the liquid medicine. Finally, the handle 3 is rotated, which causes the rotation rod 53 to rotate, thereby rotating the sleeve 2 in the annular groove 13. The injection operation is performed by pushing the piston 51 by screwing the sleeve 2 to the outer sleeve 11.
Claims (7)
1. A disposable syringe is characterized in that: the injection tube comprises an injection tube (1), a sleeve (2) and a piston rod (5), wherein the injection tube (1) comprises an inner sleeve (12) and an outer sleeve (11) sleeved on the inner sleeve (12), one end of the piston rod (5) is slidably arranged in the inner sleeve (12), and the other end of the piston rod extends out of the inner sleeve (12) and is connected with a handle (3); an annular groove (13) is formed between the inner sleeve (12) and the outer sleeve (11), an internal thread is arranged on the inner wall of the outer sleeve (11), an external thread matched with the internal thread is arranged on the outer wall of the sleeve (2), one end of the sleeve (2) is inserted into the annular groove (13), and the other end of the sleeve extends out of the annular groove (13) and is connected with the piston rod (5); the piston rod (5) comprises a piston (51), a connecting rod (52) and a rotating rod (53), the piston (51) is slidably arranged in the inner sleeve (12) and divides the inner sleeve into two parts, one end of the connecting rod (52) is connected with the piston (51), the other end of the connecting rod is provided with a rotating hole, the rotating rod (53) is rotatably inserted into the rotating hole, and the handle (3) is arranged on the rotating rod (53); the sleeve (2) is fixedly arranged at the joint of the handle (3) and the rotating rod (53).
2. The single use syringe of claim 1, wherein: the sleeve (2) and the rotating rod (53) are integrally formed.
3. The single use syringe of claim 2, wherein: the bottom of the annular groove (13) is provided with a sealing plate (54) used for sealing the annular groove (13), and the sealing plate (54) is provided with an air hole (55).
4. The single use syringe of claim 1, wherein: the two sides of the piston (51) are convexly provided with sliding blocks (56), the inner wall of the inner sleeve (12) is provided with a sliding groove (14) relative to the position of the sliding blocks (56), and the sliding blocks (56) can be clamped into the sliding groove (14) in a sliding manner.
5. The single use syringe of claim 4, wherein: the sliding block (56) is hemispherical.
6. The single use syringe of claim 1, wherein: the handle (3) is covered with a soft rubber cushion.
7. The single use syringe of claim 1, wherein: the outer surface of the outer sleeve (11) is provided with fins (4), and the fins (4) are covered with soft rubber pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433980.6U CN216148757U (en) | 2021-06-25 | 2021-06-25 | Disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433980.6U CN216148757U (en) | 2021-06-25 | 2021-06-25 | Disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216148757U true CN216148757U (en) | 2022-04-01 |
Family
ID=80835795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121433980.6U Expired - Fee Related CN216148757U (en) | 2021-06-25 | 2021-06-25 | Disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216148757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733053A (en) * | 2022-04-11 | 2022-07-12 | 河南科技大学第一附属医院 | Otolaryngology branch of academic or vocational study device of dosing |
-
2021
- 2021-06-25 CN CN202121433980.6U patent/CN216148757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733053A (en) * | 2022-04-11 | 2022-07-12 | 河南科技大学第一附属医院 | Otolaryngology branch of academic or vocational study device of dosing |
| CN114733053B (en) * | 2022-04-11 | 2024-05-07 | 河南科技大学第一附属医院 | Otorhinolaryngology branch of academic or vocational study dosing device |
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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: 20220401 |