CN220608870U - Negative pressure check valve is prevented to tee bend joint of needle tubing - Google Patents
Negative pressure check valve is prevented to tee bend joint of needle tubing Download PDFInfo
- Publication number
- CN220608870U CN220608870U CN202321750067.8U CN202321750067U CN220608870U CN 220608870 U CN220608870 U CN 220608870U CN 202321750067 U CN202321750067 U CN 202321750067U CN 220608870 U CN220608870 U CN 220608870U
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- needle
- way
- tube
- negative pressure
- needle tube
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- 230000002265 prevention Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000003814 drug Substances 0.000 abstract description 12
- 229940079593 drug Drugs 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 2
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229940127089 cytotoxic agent Drugs 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a three-way joint negative pressure prevention one-way valve of a needle tube, which comprises a three-way needle head and a needle tube, wherein one end of the three-way needle head is provided with a one-way valve, one end of the three-way needle head is provided with a guide tube, one end of the guide tube is provided with a needle head, the guide tube is provided with a guide cavity, the guide cavity is communicated with the needle head, the one-way valve comprises a plunger, the plunger is provided with a plurality of guide holes, a deflector rod is arranged at the edge of the plunger, and the deflector rod is positioned right above the guide holes; the volatilization of the medicine is reduced. Can be greatly ensured for the health of medical staff and other common medicines.
Description
Technical Field
The utility model relates to the injector structure technology, in particular to a three-way joint negative pressure prevention one-way valve of a needle tube.
Background
The advent of syringes is an epoch-making revolution in the medical device field. This process of drawing, injecting a gas or liquid with a needle is called injection. The injector consists of a needle cylinder 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 the liquid into areas inaccessible to other methods or extracting the liquid or the gas from the places, wherein the liquid or the gas is sucked from the small hole at the front end of the needle cylinder when the core rod is pulled out, and the liquid or the gas is extruded when the core rod is pushed in.
The existing products in the market are high in price or single in problem solving. Moreover, the three major injuries caused by chemotherapeutic agents have not been addressed. Therefore, the traditional injector is widely used in the market, the times of pulling in and out are high during medicine mixing, medicines are easy to splash and volatilize, and simultaneously, the operators are easy to be injured by the needle, so that a three-way joint negative pressure prevention one-way valve of the needle tube is needed to solve the problems.
Disclosure of Invention
The utility model aims to provide a three-way joint negative pressure prevention one-way valve of a needle tube, which aims to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a three way connection prevents negative pressure check valve of needle tubing, includes tee bend syringe needle and needle tubing, the one end of tee bend syringe needle is provided with the check valve, the one end of tee bend syringe needle is provided with the honeycomb duct, the one end of honeycomb duct is provided with the syringe needle, the honeycomb duct has a water conservancy diversion chamber, water conservancy diversion chamber and syringe needle intercommunication, the check valve includes the plunger, the plunger has a plurality of water conservancy diversion hole, the edge of plunger is provided with the driving lever, the driving lever is located the water conservancy diversion hole directly over.
Further, one end of the flow guide pipe is provided with a retractable needle cap, and the retractable needle cap is sleeved outside the needle head.
Furthermore, a connecting pipe is arranged at one end of the needle tube, and the needle tube and the connecting pipe are integrally formed.
Further, the outside of connecting pipe is provided with first screw thread, the inside of tee bend syringe needle is provided with the second screw thread, connecting pipe and tee bend syringe needle pass through first screw thread and second screw thread threaded connection.
Further, a push-pull rod is arranged in the needle tube, a piston is arranged at one end of the push-pull rod, and the outer wall of one side of the piston is attached to the inner wall of one side of the needle tube.
Further, one end of the needle tube is provided with a pulling plate.
Further, supporting blocks are arranged outside the needle tube, the number of the supporting blocks is two, and the supporting blocks are symmetrically distributed on two sides of the needle tube.
In the technical scheme, the three-way joint negative pressure prevention one-way valve of the needle tube provided by the utility model can prevent medical staff from leaking and splashing liquid medicine in the configuration process through the arranged three-way needle head; the volatilization of the medicine is reduced. The health of medical staff and other common medicines can be greatly ensured; (2) The double-needle design is added, the repeated needle inserting times are reduced, and the volatilization of the medicine is reduced; (3) The retractable needle cap is provided with the retractable needle protection cap, so that the needle puncture of medical staff is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic cross-sectional view of a negative pressure preventing check valve for a three-way connector of a needle cannula according to an embodiment of the present utility model.
FIG. 2 is a schematic diagram of a check valve provided by an embodiment of a negative pressure prevention check valve for a three-way joint of a needle tube.
FIG. 3 is a schematic view of a flow guide tube provided by an embodiment of a negative pressure preventing one-way valve for a three-way joint of a needle tube.
FIG. 4 is a schematic view of a needle provided by an embodiment of a negative pressure resistant check valve for a three-way connector of a needle cannula according to the present utility model.
Reference numerals illustrate:
the needle tube 1, the piston 2, the push-pull rod 3, the supporting block 4, the pull plate 5, the connecting tube 6, the second thread 7, the three-way needle head 8, the first thread 9, the one-way valve 10, the diversion cavity 11, the diversion tube 12, the needle head 13, the retraction needle cap 14, the plunger 15, the deflector rod 16 and the diversion hole 17.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the three-way joint negative pressure prevention one-way valve of the needle tube provided by the embodiment of the utility model comprises a three-way needle 8 and the needle tube 1, wherein one end of the three-way needle 8 is provided with the one-way valve 10, one end of the three-way needle 8 is provided with a guide tube 12, one end of the guide tube 12 is provided with a needle 13, the guide tube 12 is provided with a guide cavity 11, the guide cavity 11 is communicated with the needle 13, the one-way valve 10 comprises a plunger 15, the plunger 15 is provided with a plurality of guide holes 17, a deflector rod 16 is arranged at the edge of the plunger 15, and the deflector rod 16 is positioned right above the guide holes 17.
In this embodiment, one end of the three-way needle 8 is provided with a one-way valve 10, one end of the three-way needle 8 is provided with a flow guide pipe 12, one end of the flow guide pipe 12 is provided with a needle 13, the flow guide pipe 12 is provided with a flow guide cavity 11, the flow guide cavity 11 is communicated with the needle 13, the one-way valve 10 comprises a plunger 15, the plunger 15 is provided with a plurality of flow guide holes 17, a deflector rod 16 is arranged at the edge of the plunger 15, the deflector rod 16 is positioned right above the flow guide holes 17, the number of the flow guide pipes 12 is two, two flow guide pipes 12 are arranged in two modes, one mode is mutually perpendicular, the other mode is symmetrically distributed, as shown in the figure, the flow guide holes 17 are communicated with the flow guide pipes, and the mode of communicating the flow guide holes 17 with the flow guide pipes 12 is regulated by rotating the deflector rod 16.
According to the negative pressure prevention one-way valve of the three-way joint of the needle tube, through the three-way needle head, medical staff in the configuration process can avoid phenomena of leakage, splashing and the like of liquid medicine; the volatilization of the medicine is reduced. Can be greatly ensured for the health of medical staff and other common medicines.
Further, one end of the flow guiding tube 12 is provided with a retractable needle cap 14, and the retractable needle cap 14 is sleeved outside the needle 13.
Further, a connecting pipe 6 is arranged at one end of the needle tube 1, and the needle tube 1 and the connecting pipe 6 are integrally formed.
Further, a first thread 9 is arranged outside the connecting pipe 6, a second thread 7 is arranged inside the three-way needle 8, and the connecting pipe 6 is in threaded connection with the three-way needle 8 through the first thread 9 and the second thread 7; the first thread 9 and the second thread 7 can be well connected with the three-way needle 8, and compared with the plugging mode, the three-way needle 8 is more stable in use.
Further, a push-pull rod 3 is arranged in the needle tube 1, a piston 2 is arranged at one end of the push-pull rod 3, and the outer wall of one side of the piston 2 is attached to the inner wall of one side of the needle tube 1.
Further, one end of the needle tube 1 is provided with a pulling plate 5.
Further, the outer part of the needle tube 1 is provided with two supporting blocks 4, and the supporting blocks 4 are symmetrically distributed on two sides of the needle tube 1; the supporting block is 4-bit hand supporting parts, so that the piston can be pulled conveniently, and the traditional injector is also embodied in the prior art.
By adopting the design of adding double needles, the repeated needle feeding times are reduced, and the volatilization of the medicine is reduced; the retractable needle cap is provided with the retractable needle protection cap, so that the needle puncture of medical staff is reduced.
Example 1
The utility model provides a three way connection prevents negative pressure check valve of needle tubing, includes tee bend syringe needle 8 and needle tubing 1, and tee bend syringe needle 8's one end is provided with check valve 10, and tee bend syringe needle 8's one end is provided with honeycomb duct 12, and honeycomb duct 12's one end is provided with syringe needle 13, and honeycomb duct 12 has a water conservancy diversion chamber 11, and water conservancy diversion chamber 11 and syringe needle 13 intercommunication, check valve 10 include plunger 15, and plunger 15 has a plurality of water conservancy diversion hole 17, and the edge of plunger 15 is provided with driving lever 16, and driving lever 16 is located directly over water conservancy diversion hole 17, and the quantity of honeycomb duct 12 is two the mode that the honeycomb duct 12 set up has two, and one is mutually perpendicular's mode, and another mode is the symmetric distribution setting, as shown in the figure, and water conservancy diversion hole 17 and honeycomb duct intercommunication are adjusted through rotatory driving lever 16.
Example 2
The embodiment is further defined on the basis of embodiment 1, one end of the flow guiding tube 12 is provided with a retractable needle cap 14, and the retractable needle cap 14 is sleeved outside the needle 13; one end of the needle tube 1 is provided with a connecting tube 6, and the needle tube 1 and the connecting tube 6 are integrally formed; the outer part of the connecting pipe 6 is provided with a first thread 9, the inner part of the three-way needle 8 is provided with a second thread 7, and the connecting pipe 6 is in threaded connection with the three-way needle 8 through the first thread 9 and the second thread 7; the first thread 9 and the second thread 7 can be well connected with the three-way needle 8, and compared with a plugging mode, the three-way needle has higher stability in use; a push-pull rod 3 is arranged in the needle tube 1, one end of the push-pull rod 3 is provided with a piston 2, and the outer wall of one side of the piston 2 is attached to the inner wall of one side of the needle tube 1; one end of the needle tube 1 is provided with a pulling plate 5; the outer part of the needle tube 1 is provided with two supporting blocks 4, and the supporting blocks 4 are symmetrically distributed on two sides of the needle tube 1; the supporting block is 4-bit hand supporting parts, so that the piston can be pulled conveniently, and the traditional injector is also embodied in the prior art.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (7)
1. The utility model provides a negative pressure check valve is prevented to tee bend joint of needle tubing, its characterized in that, including tee bend syringe needle (8) and needle tubing (1), the one end of tee bend syringe needle (8) is provided with check valve (10), the one end of tee bend syringe needle (8) is provided with honeycomb duct (12), the one end of honeycomb duct (12) is provided with syringe needle (13), honeycomb duct (12) have a water conservancy diversion chamber (11), water conservancy diversion chamber (11) and syringe needle (13) intercommunication, check valve (10) include plunger (15), plunger (15) have a plurality of water conservancy diversion hole (17), the edge of plunger (15) is provided with driving lever (16), driving lever (16) are located directly over water conservancy diversion hole (17).
2. The three-way joint negative pressure prevention one-way valve of the needle tube according to claim 1, wherein one end of the guide tube (12) is provided with a retractable needle cap (14), and the retractable needle cap (14) is sleeved outside the needle head (13).
3. The three-way joint negative pressure prevention one-way valve of the needle tube according to claim 1, wherein a connecting tube (6) is arranged at one end of the needle tube (1), and the needle tube (1) and the connecting tube (6) are integrally formed.
4. A three-way joint negative pressure prevention one-way valve of a needle tube according to claim 3, characterized in that the outside of the connecting tube (6) is provided with a first thread (9), the inside of the three-way needle (8) is provided with a second thread (7), and the connecting tube (6) is in threaded connection with the three-way needle (8) through the first thread (9) and the second thread (7).
5. The three-way joint negative pressure prevention one-way valve of the needle tube according to claim 1, wherein a push-pull rod (3) is arranged in the needle tube (1), a piston (2) is arranged at one end of the push-pull rod (3), and one side outer wall of the piston (2) is attached to one side inner wall of the needle tube (1).
6. The three-way joint negative pressure prevention one-way valve of the needle tube according to claim 1, wherein one end of the needle tube (1) is provided with a pulling plate (5).
7. The three-way joint negative pressure prevention one-way valve of the needle tube according to claim 1, wherein supporting blocks (4) are arranged outside the needle tube (1), and the number of the supporting blocks (4) is two and symmetrically distributed on two sides of the needle tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321750067.8U CN220608870U (en) | 2023-07-05 | 2023-07-05 | Negative pressure check valve is prevented to tee bend joint of needle tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321750067.8U CN220608870U (en) | 2023-07-05 | 2023-07-05 | Negative pressure check valve is prevented to tee bend joint of needle tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220608870U true CN220608870U (en) | 2024-03-19 |
Family
ID=90216799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321750067.8U Active CN220608870U (en) | 2023-07-05 | 2023-07-05 | Negative pressure check valve is prevented to tee bend joint of needle tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220608870U (en) |
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2023
- 2023-07-05 CN CN202321750067.8U patent/CN220608870U/en active Active
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