CN216394916U - Anti-backflow venous transfusion device with flow velocity adjustable - Google Patents
Anti-backflow venous transfusion device with flow velocity adjustable Download PDFInfo
- Publication number
- CN216394916U CN216394916U CN202022823163.3U CN202022823163U CN216394916U CN 216394916 U CN216394916 U CN 216394916U CN 202022823163 U CN202022823163 U CN 202022823163U CN 216394916 U CN216394916 U CN 216394916U
- Authority
- CN
- China
- Prior art keywords
- base
- housing
- flow rate
- flow velocity
- shell
- 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.)
- Active
Links
- 238000001802 infusion Methods 0.000 claims abstract description 31
- 239000011550 stock solution Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000001990 intravenous administration Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000000151 anti-reflux effect Effects 0.000 claims 5
- 230000000284 resting effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 14
- 230000002265 prevention Effects 0.000 abstract 1
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000000474 nursing effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000001297 phlebitis Diseases 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a backflow-preventing venous transfusion device with adjustable flow velocity, which comprises a shell, a base and a rotatable flow velocity adjusting part, wherein the base is arranged in the shell by taking the rotation axis of the flow velocity adjusting part as the center and arranging a plurality of flow channels with different thicknesses along the circumferential direction; the casing sets up the stock solution chamber in the below of base, the bottom in stock solution chamber sets up the infusion export, sets up the ball-cock assembly in the stock solution chamber. The utility model combines the flow velocity adjusting piece with different speed adjusting pipelines, so that the transfusion device has different dripping speeds, and the ball float valve at the lower part prevents liquid from dripping empty and plays a role in backflow prevention through the buoyancy principle.
Description
Technical Field
The utility model relates to a backflow-preventing venous transfusion device with adjustable flow speed.
Background
Currently, disease treatment by intravenous infusion and fluid supplementation remain the primary treatment modalities for patients. The infusion speed needs to be strictly controlled, different medicines have different infusion speed requirements, the heart load of a patient can be increased due to too fast infusion, and the patient cannot be effectively supplemented with liquid due to too slow infusion. Especially for intensive care unit patients, the requirement on the infusion speed is stricter. In the process of infusion, the patient can adjust the dropping speed by himself often, so that adverse reaction occurs when the infusion is too fast, or the puncture position of the venous indwelling needle has the symptoms of needle bulging, blood returning and phlebitis, or even the life danger occurs. At present, most of infusion devices used in hospitals are roller type infusion dripping speed regulation, the structure is simple, the cost is low, the regulation speed is not accurate enough, the roller is likely to loose, the dripping speed is changed, the infusion state is often monitored by nurses, nursing staff or patients and family members, if the infusion apparatus is not closed in time when the infusion is finished, the situations of blood return and the like can occur, serious medical accidents can be caused sometimes, the life safety of the patients is threatened, and the contradiction between doctors and patients is excited. Some electronic control infusion dripping speed devices cannot be equipped for each patient due to complex structure and high cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide the anti-backflow venous transfusion device with adjustable flow rate. Therefore, the technical scheme adopted by the utility model is as follows:
the anti-backflow venous transfusion device with the flow velocity adjustable is characterized by comprising a shell, a base and a rotatable flow velocity adjusting piece, wherein the base is arranged in the shell by taking the rotation axis of the flow velocity adjusting piece as the center, a plurality of flow channels with different thicknesses are arranged along the circumferential direction, the flow velocity adjusting piece is provided with a central tube and a bent speed adjusting tube arranged in the shell, the central tube is connected with a transfusion tube at the upstream of the transfusion device, the upper end of the speed adjusting tube is communicated with the central tube, the lower end of the speed adjusting tube is connected with the base in a sliding and sealing manner, and the speed adjusting tube can be communicated with different flow channels by rotating the flow velocity adjusting piece; the casing sets up the stock solution chamber in the below of base, the bottom in stock solution chamber sets up the infusion export, sets up the ball-cock assembly in the stock solution chamber.
Furthermore, an annular groove is formed in the top surface of the base in the shell, an inlet of the flow channel is formed in the annular groove, and the lower end of the speed regulating pipe is inserted into the annular groove.
Further, a support step is provided in a portion of the flow rate adjusting member within the housing, and a spring that presses the flow rate adjusting member against the base is provided between the support step and the housing above the support step.
Further, the shell comprises an upper shell and a lower shell, the upper end of the central pipe extends out of the upper shell, and the central pipe is rotatably connected with the upper shell in a sealing mode; the base is arranged in the middle, and the upper shell and the lower shell are respectively in sealing connection with the upper portion and the lower portion of the base.
Further, the base includes a housing inner portion in which the flow passage is provided and a housing portion constituting a middle portion of the housing, and the upper and lower cases are hermetically connected to upper and lower portions of the housing portion of the base, respectively.
Further, a speed regulating handle is arranged on the part of the central pipe outside the shell.
Further, the top of the housing, below the handle, surrounds the central tube, and is provided with flow rate indicators corresponding to respective flow paths having different flow rates.
Further, the ball-cock assembly is including setting up the sealing washer in the stock solution intracavity and shelving the floater on the sealing washer.
The utility model has the beneficial effects that:
1. the utility model has the advantages that the flow rate of the transfusion can be accurately adjusted by adjusting the flow rate device, so as to make up the defect of the existing transfusion adjustment and adapt to the requirements of different transfusion speeds of patients.
2. The utility model also avoids the occurrence of venous blood return caused by transfusion emptying through the ball float valve, thereby ensuring the transfusion safety of patients.
3. The nursing bed has the advantages of simple overall structure, low cost and strong operability, and can effectively reduce the workload of clinical nursing and improve the working efficiency of nurses.
Drawings
FIG. 1 is a general schematic diagram of an embodiment of the present invention.
Fig. 2 is a half-section schematic diagram of the infusion apparatus of the utility model.
Fig. 3 is a schematic view of the combination of the fluid delivery member and the spring of the present invention.
Fig. 4 is a schematic view of the infusion speed regulating member and a part of the housing and the sealing ring of the present invention.
Fig. 5 is a top view of the infusion set of the present invention.
FIG. 6 is a schematic view of the float and a portion of the housing and gasket of the present invention.
Fig. 7 is a top view of the base of the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in the figure, the anti-backflow venous transfusion device 3 capable of adjusting the flow rate comprises a shell, a base and a rotatable flow rate adjusting piece 100, wherein the base takes the rotation axis of the flow rate adjusting piece as the center, six flow passages 19, 20, 21, 22, 23 and 24 with different thicknesses are arranged in the shell along the circumferential direction, six-gear flow rate adjustment can be carried out, the dripping speed is set to be 15 drops/minute, 30 drops/minute, 45 drops/minute, 60 drops/minute, 80 drops/minute and 120 drops/minute according to the aperture size, and the requirement of most of the transfusion dripping speed can be met.
The flow velocity adjusting part 100 is provided with a central tube 81 and a bent speed adjusting tube 8 arranged in the shell, the central tube 81 is connected with an infusion tube 4 at the upstream of the infusion apparatus, the upper end of the speed adjusting tube 8 is communicated with the central tube 81, the lower end of the speed adjusting tube 8 is connected with the base in a sliding and sealing manner, and the speed adjusting tube 8 can be communicated with different flow channels by rotating the flow velocity adjusting part 100; the casing sets up liquid storage cavity 200 in the below of base, the bottom in liquid storage cavity 200 sets up infusion export 201, sets up the ball-cock assembly in the liquid storage cavity 200.
The top surface of the base in the shell is provided with an annular groove 141, inlets of the flow channels 19, 20, 21, 22, 23 and 24 are arranged at the bottom of the annular groove 141, the lower end of the speed regulating pipe 8 is inserted into the annular groove 141, the lower end of the speed regulating pipe 8 is in sealing fit with the bottom of the annular groove, and the lower end of the speed regulating pipe is provided with a sealing rubber ring 13 for sealing connection. The annular groove 141 can guide the circular motion of the speed regulating tube 8, and the speed regulating tube 8 is communicated with different flow passages by rotating the flow speed regulating member 100.
The housing comprises an upper shell 9 and a lower shell 18, the base is arranged in the middle, the base comprises a housing inner part 14 for arranging the flow channel and a housing part 142 for forming the middle of the housing, and the upper shell 9 and the lower shell 18 are respectively and tightly combined with the upper part and the lower part of the housing part 142 of the base in a screwing way and are respectively kept connected and sealed by virtue of sealing rubber rings 12 and 16.
The upper end of the central tube 81 of the flow rate regulating member 100 extends out of the upper shell 9, a sealing rubber ring 10 is arranged between the central tube 81 and the upper shell 9, and the central tube 81 and the sealing rubber ring 10 are in rotating sealing fit.
The flow rate adjusting member 100 is provided with a support step 82 at a portion inside the housing, and a spring 11 that presses the flow rate adjusting member 100 against the base is provided between the support step 82 and the upper case 9 above.
The part of the central tube 81 outside the shell is provided with a speed regulating handle 7. The throttle grip 7 and the flow rate adjusting member 100 are an integral member. The top of the upper shell is arranged below the handle 7 and surrounds the central pipe 81, flow rate marks corresponding to various flow channels with different flow rates are arranged, the marks can be numbers from 1 to 6 and respectively correspond to pipe hole positions of the flow channels 19, 20, 21, 22, 23 and 24, so that the speed regulating handle 7 can also be used as a flow rate indicating component, and an indicating point, a ring 71 and the like can be arranged on the speed regulating handle.
The ball float valve plays a role in preventing liquid from dripping empty, the liquid storage cavity 200 can be arranged in the lower shell 18 by utilizing the circumferential size of the base due to the arrangement of the flow channel and the body shape of the lower shell 18 with a certain diameter due to the matching with the base, and the implementation structure in the embodiment comprises a sealing rubber ring 17 arranged in the liquid storage cavity and a floating ball 15 placed on the sealing ring. When the liquid level rises to reach the buoyancy value of floater 15, floater 15 floats, and the ball cock valve is opened, and can output liquid, and when liquid drips soon, the liquid level is not enough to make floater 15 float, and floater 15 falls and whenever the cooperation with sealing washer 17 stops up the infusion export, and liquid no longer flows out, prevents that liquid from dripping empty and blood backward flow.
The reference numeral 1 is an infusion plug, the reference numeral 2 is an air inlet, the reference numeral 4 is an infusion tube, the reference numeral 6 is an intravenous infusion needle, the infusion tube 4 is provided with a tube clamp 5, and the tube clamp 5 can adopt a Robert clamp. These are all common configurations for a complete set of infusion devices.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The anti-backflow venous transfusion device with the flow velocity adjustable is characterized by comprising a shell, a base and a rotatable flow velocity adjusting piece, wherein the base is arranged in the shell by taking the rotation axis of the flow velocity adjusting piece as the center, a plurality of flow channels with different thicknesses are arranged along the circumferential direction, the flow velocity adjusting piece is provided with a central tube and a bent speed adjusting tube arranged in the shell, the central tube is connected with a transfusion tube at the upstream of the transfusion device, the upper end of the speed adjusting tube is communicated with the central tube, the lower end of the speed adjusting tube is connected with the base in a sliding and sealing manner, and the speed adjusting tube can be communicated with different flow channels by rotating the flow velocity adjusting piece; the casing sets up the stock solution chamber in the below of base, the bottom in stock solution chamber sets up the infusion export, sets up the ball-cock assembly in the stock solution chamber.
2. The flow rate adjustable anti-reflux intravenous infusion set according to claim 1, wherein the base is provided with an annular groove on the top surface in the housing, the inlet of the flow passage is provided in the annular groove, and the lower end of the speed regulating tube is inserted into the annular groove.
3. The adjustable flow rate backflow-preventing intravenous set of claim 1, wherein said flow rate adjustment member is provided with a support step in a portion of said housing, and a spring is provided between said support step and said housing above said support step for biasing said flow rate adjustment member against said base.
4. The adjustable flow rate anti-reflux intravenous set of claim 1, wherein said housing comprises an upper housing and a lower housing, said central tube extending from said upper housing at an upper end thereof, said central tube being rotatably coupled to said upper housing in a sealing manner; the base is arranged in the middle, and the upper shell and the lower shell are respectively in sealing connection with the upper portion and the lower portion of the base.
5. The adjustable flow rate backflow-preventing intravenous infusion set according to claim 4, wherein said base includes an inner housing portion in which said flow path is provided and a housing portion forming a middle portion of the housing, said upper and lower housings being sealingly connected to upper and lower portions of the housing portion of the base, respectively.
6. The adjustable flow rate anti-reflux intravenous set of claim 1, wherein the portion of the central tube outside the housing is provided with a speed control knob.
7. An adjustable flow rate anti-reflux intravenous set as in claim 6, wherein the top of said housing, below said handle, surrounds said central tube and is provided with flow rate indicators corresponding to respective flow paths of different flow rates.
8. The adjustable flow rate anti-reflux intravenous set of claim 1, wherein said float valve comprises a sealing ring disposed within the reservoir and a float ball resting on the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022823163.3U CN216394916U (en) | 2020-11-30 | 2020-11-30 | Anti-backflow venous transfusion device with flow velocity adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022823163.3U CN216394916U (en) | 2020-11-30 | 2020-11-30 | Anti-backflow venous transfusion device with flow velocity adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216394916U true CN216394916U (en) | 2022-04-29 |
Family
ID=81280950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022823163.3U Active CN216394916U (en) | 2020-11-30 | 2020-11-30 | Anti-backflow venous transfusion device with flow velocity adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216394916U (en) |
-
2020
- 2020-11-30 CN CN202022823163.3U patent/CN216394916U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011134347A1 (en) | Automatic fluid shut-off infusion device with safety mechanism | |
| CN216394916U (en) | Anti-backflow venous transfusion device with flow velocity adjustable | |
| CN105597229A (en) | Check valve for infusion | |
| CN212038416U (en) | Sterile blood purification infusion tube | |
| CN105641779B (en) | Infusion flow speed regulator | |
| CN202355644U (en) | Self liquid stopping dropping funnel | |
| CN203355005U (en) | Novel Murphy dripper infusion device | |
| CN216258561U (en) | Bidirectional self-closed liquid-stopping and anti-back-transfusion device | |
| CN101229403B (en) | Murphy's burette | |
| CN211272745U (en) | Automatic gastrolavage machine | |
| CN109125819B (en) | Negative pressure sputum aspirator capable of preventing sputum from flowing reversely | |
| CN203043185U (en) | Automatic cut-off dripping hopper for disposable venous infusion apparatus | |
| CN102380143B (en) | Liquid flow observer of transfusion apparatus | |
| CN219231015U (en) | Safe liquid medicine filter for infusion apparatus | |
| CN219271759U (en) | Medical adapter with antibacterial effect | |
| CN201286915Y (en) | Disposable self-closing liquid-keeping transfusion device with valve opening sac | |
| CN219579508U (en) | Negative pressure aspirator | |
| CN212166226U (en) | Puncture drainage device is intervene to internal medicine clinic | |
| CN213490574U (en) | Disposable adjustable liquid drainage device | |
| CN219440182U (en) | Patient drainage device | |
| CN214910570U (en) | Flow control device of stomach nutrition bag | |
| CN219148695U (en) | Disposable spittoon | |
| CN103961769B (en) | Disposable self-closing safe transfusion system | |
| CN216536503U (en) | Multifunctional lumbar cisterna drainage frame | |
| CN212118741U (en) | Anti-backflow catheterization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |