CN220370254U - Injector for monitoring venous pressure - Google Patents
Injector for monitoring venous pressure Download PDFInfo
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- CN220370254U CN220370254U CN202222150273.7U CN202222150273U CN220370254U CN 220370254 U CN220370254 U CN 220370254U CN 202222150273 U CN202222150273 U CN 202222150273U CN 220370254 U CN220370254 U CN 220370254U
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- injection
- pressure
- pressure monitoring
- chamber
- monitor
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 238000002347 injection Methods 0.000 claims abstract description 104
- 239000007924 injection Substances 0.000 claims abstract description 104
- 238000004891 communication Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 abstract description 12
- 229940079593 drug Drugs 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 210000003462 vein Anatomy 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 7
- 238000001990 intravenous administration Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010253 intravenous injection Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010047163 Vasospasm Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000003589 local anesthetic agent Substances 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an injector for monitoring venous pressure, which comprises an injection handle, an injection cylinder, an injection needle and a pressure monitor, wherein connecting columns are respectively and correspondingly arranged at two ends of the pressure monitor, slotted holes are formed in the connecting columns, and internal threads are arranged on the slotted holes; the head end of the injection cylinder and the tail end of the injection needle are respectively provided with a circle of external threads, and the injection cylinder and the injection needle are respectively connected with connecting columns at two ends of the pressure monitor in a threaded manner; the advantages are as follows: the utility model has simple structure, convenient operation and lower manufacturing cost, can monitor the pressure of the injection vein in real time, effectively reduces the occurrence of drug leakage or injection position error caused by overlarge pressure during injection, and provides safety guarantee for the treatment of patients.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to an injector for monitoring venous pressure.
Background
With the development and progress of medical technology, accurate treatment of diseases has become a direction of clinical development, and intravenous injection is a routine operation of clinical work, and is often used for drug injection, local anesthetic administration, direct infusion treatment of lesion sites, and the like. At present, a conventional injector is basically used for clinical medicine injection, the injector is convenient and low in cost, the injection depends on the experience and proficiency of medical staff, but the requirement of partial medicine on the injection speed is relatively strict, the operation only depends on experience and feel, and great uncertainty and hidden danger exist, in the operation process, the injection feedback pressure is too high, so that an injection needle head and a needle cylinder fall off, the medicine leaks out, or the injection is injected into a non-venous site, damage is caused, the effect of the medicine action, the pain feeling of a patient and the like are directly influenced, even potential safety hazards are caused, and serious consequences are caused.
Chinese patent application: CN201120127155.3 discloses a syringe, comprising: a barrel defining a barrel cavity therein; the front end of the push rod is inserted into the cylinder cavity, and the rear end of the push rod extends out of the cylinder cavity backwards; the piston is arranged at the front end of the push rod so as to divide the cylinder cavity into a first front cavity and a first rear cavity, and the piston can move in the cylinder cavity along with the push rod; the pressure sensor is arranged on the push rod and used for detecting the fluid pressure in the first front cavity; the processing unit is connected with the pressure sensor and used for processing the fluid pressure signal detected by the pressure sensor to obtain a fluid pressure value in the first front cavity; and a display unit connected with the processing unit to display the pressure value. The device is to a certain extent though capable of performing injections quickly and conveniently and ensuring that the injected gas pressure is within a safe range. However, the electronic components adopted in the above patents have complex overall structure, and the problems of sealing and high manufacturing cost must be considered in the manufacturing and using processes, so that the electronic components have defects in the practical application process.
Chinese patent application: CN203029735U discloses an injector, comprising an injector needle cylinder with a liquid outlet pipe and a needle with a needle seat, the needle is sleeved on the liquid outlet pipe of the injector needle cylinder through the needle seat, two symmetrical fan-shaped flanges are arranged at the bottom end of the needle seat, and two symmetrical fan-shaped limiting clamping grooves for placing the fan-shaped flanges of the needle seat are arranged at the top end of the injector needle cylinder. The syringe in the device is mutually rotationally clamped through the limit clamping groove arranged on the syringe and the flange arranged on the needle seat, so that the fixation between the syringe and the needle is enhanced, the defect that the needle falls off due to overlarge pressure in the syringe is avoided, but the whole injection pressure cannot be predicted and monitored, the device is completely dependent on the working experience and proficiency of operators, and unnecessary potential safety hazards are easily caused to patients.
Therefore, in view of the above, there is a need for an injector for monitoring venous pressure, which has a simple structure, is convenient to operate, can monitor the venous pressure of a bolus in real time, and can reduce leakage of a drug or incorrect injection position caused by overlarge pressure during bolus injection.
Disclosure of Invention
The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a syringe for monitoring venous pressure.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the injector for monitoring venous pressure comprises an injection handle, an injection cylinder, an injection needle and a pressure monitor, wherein connecting columns are correspondingly arranged at two ends of the pressure monitor respectively, slotted holes are formed in the connecting columns, and internal threads are arranged on the slotted holes; the head end of the injection tube and the tail end of the injection needle are respectively provided with a circle of external threads, and the injection tube and the injection needle are respectively in threaded connection with the connecting columns at the two ends of the pressure monitor.
In the above-mentioned injector for monitoring venous pressure, as an preferable scheme, the pressure monitor is in a medium-shaped structure, and further comprises an injection chamber and a pressure monitoring chamber, wherein the injection chamber is communicated with the slot hole in the connecting column.
In the above-mentioned injector for monitoring venous pressure, as a preferable mode, an opening is reserved at one side of the injection chamber, and the opening is further communicated with the pressure monitoring chamber.
In the above-mentioned syringe for monitoring venous pressure, as an preferable solution, the pressure monitoring chamber is integrally formed in a U-shaped structure, a piston is disposed in the pressure monitoring chamber, and the upper and lower ends of the piston are correspondingly filled in the pressure monitoring chamber; the tail end of the piston is also connected with a spring, one end of the spring is connected with the tail end inner wall of the pressure monitoring chamber, and the tail end inner wall of the pressure monitoring chamber is also provided with an atmosphere communication hole.
In the above-mentioned injector for monitoring venous pressure, as a preferable scheme, the upper surface of the pressure monitoring chamber is further provided with different color areas, wherein the different color areas are green, yellow and red, and each color corresponds to a different pressure value.
In the above-mentioned injector for monitoring venous pressure, as a preferable scheme, the injection chamber is in a concave structure as a whole, and the recess is matched with the pressure monitoring chamber.
The utility model has the advantages that:
1. the utility model has simple structure, convenient operation and lower manufacturing cost, can monitor the pressure of the injection vein in real time, effectively reduces the occurrence of drug leakage or injection position error caused by overlarge pressure during injection, and provides safety guarantee for the treatment of patients.
2. The threaded connection arranged at the connection parts at the two sides of the pressure monitor can effectively prevent the overlarge pressure and the injection needle from falling off from the injection needle cylinder, avoid the injection needle cylinder from falling off instantly, ensure the safety of the injection of patients and reduce unnecessary injuries by sliding the injection needle to wrongly penetrate into normal tissues.
Drawings
Fig. 1 is a schematic diagram of a monitor intravenous pressure injector according to the present utility model.
Fig. 2 is a schematic view of the structure of the injection handle and the injection cartridge of the monitoring intravenous pressure injector according to the present utility model.
Fig. 3 is a schematic view showing a partial structure of a pressure monitor in the intravenous pressure syringe according to the present utility model.
Detailed Description
The utility model is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications of the present utility model may be made by those skilled in the art after reading the description of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
Reference numerals and components referred to in the drawings are as follows:
| 1. injection handle | 2. Injection tube | 3. Pressure monitor |
| 4. Injection needle | 5. Connecting column | 6. Slotted hole |
| 7. Internal thread | 8. External screw thread | 31. Injection chamber |
| 32. Pressure monitoring chamber | 33. An opening | 34. Piston |
| 35. Different color regions | 36. Atmospheric communication hole | 37. Spring |
Examples
Referring to fig. 1-3, fig. 1 is a schematic diagram of a syringe for monitoring venous pressure according to the present utility model. Fig. 2 is a schematic view of the structure of the injection handle and the injection cartridge of the monitoring intravenous pressure injector according to the present utility model. Fig. 3 is a schematic view showing a partial structure of a pressure monitor in the intravenous pressure syringe according to the present utility model.
The device mainly relates to an injector capable of monitoring the pressure of a push injection vein in real time, which is used for conventional intravenous injection, and prevents vasospasm, extravascular injection and the like from occurring during the injection of the medicine, so as to ensure the injection of the medicine into the vein, and the injector mainly comprises an injection handle 1, an injection cylinder 2, a pressure monitor 3 and an injection needle 4, wherein the injection handle 1 is positioned in the injection cylinder 3, the pressure monitor 3 is respectively connected between the injection needle 4 and the injection cylinder 2, specifically, the two ends of the pressure monitor 3 are respectively and correspondingly provided with a connecting column 5, the connecting columns 5 and the pressure monitor 3 are integrally connected, slotted holes 6 are arranged in the connecting columns 5, and internal threads 7 are arranged on the slotted holes 6; the head end of the injection tube 2 and the tail end of the injection needle 4 are respectively provided with a circle of external threads 8, and the head end of the injection tube 2 and the tail end of the injection needle are respectively connected with the connecting columns 5 at the two ends of the pressure monitor in a threaded manner; the screw thread type connection mode is adopted at both ends, and when the traditional conventional syringe is used for medical operation, the joint of the needle head and the syringe is smooth, so that pressure is often generated when the pushing injection position is wrong, and the problems of falling off and the like appear.
In this embodiment, the pressure monitor 3 preferably has a medium-shaped structure, and further includes an injection chamber 31 and a pressure monitoring chamber 32, wherein the injection chamber 31 is communicated with the slot 6 in the connecting column, so that the liquid in the injection tube 2 can flow into the injection tube conveniently, an opening 33 is reserved at one side of the injection chamber 31, and the opening 33 is further communicated with the pressure monitoring chamber 32.
In this embodiment, it is preferable that the pressure monitoring chamber 32 has a U-shaped structure, in which a piston 34 is disposed, and the upper and lower ends of the piston 34 are correspondingly filled in the pressure monitoring chamber 32, a spring is further connected to the tail end of the piston, one end of the spring 37 is connected to the inner wall of the tail end of the pressure monitoring chamber, and an atmospheric communication hole 36 is further disposed on the inner wall of the tail end of the pressure monitoring chamber; because the opening 33 reserved at one side of the injection chamber 31 is communicated with the pressure monitoring chamber 32, when liquid is injected (as shown in fig. 3), the piston 34 in the pressure monitoring chamber can be gradually compressed and moved rightward along with the pressure increase, and the atmosphere communication hole on the inner wall of the tail end of the piston can be contacted with the external atmosphere, so that the movement of the piston can be conveniently realized; meanwhile, the upper surface of the pressure monitoring chamber is also provided with different color areas 35, wherein the different color areas 35 can be green, yellow and red, and each color corresponds to a different pressure value; the piston 34 gradually moves along with the gradual movement of the piston 34 to be compared with different color areas, if the piston 34 is compressed to the green area, normal injection pressure is obtained, when the piston 34 is compressed to the yellow area, pressure is increased, and when the piston 34 is compressed to the red area, the piston 34 is regarded as high in pushing pressure, so that real-time pressure values (which are set for different color areas on the pressure monitoring chamber) are judged according to the areas with different colors, different color parts can be smeared on the shell of the pressure monitoring chamber during specific operation, the color is smeared in the middle just like a 'mu', and the two sides are transparent and considerable, so that the pressure values corresponding to the different colors can be conveniently and effectively identified, and further, the occurrence of drug leakage or injection position errors caused by excessive pressure during pushing can be effectively reduced, and safety guarantee is provided for the treatment of patients.
In this embodiment, the injection chamber 31 is preferably in a concave shape, and the concave portion thereof is matched with the pressure monitoring chamber 32.
The application method of the utility model comprises the following steps: when intravenous injection is carried out, the needle head is slowly inserted into a required injection position, then the injection handle is pressed, along with the gradual downward movement of liquid in the injection cylinder, the liquid in the injection cavity is also changed, the liquid in the injection cavity gradually presses a spring connected with the piston in the pressure monitoring cavity, so that the piston is driven to move, and along with the gradual increase of the injection pressure, the piston is gradually compressed and moved into a corresponding color area, so that the safety of the injection pressure is judged by observing the color area corresponding to the piston; when the piston is compressed to the green area, the normal injection pressure is obtained, when the piston is compressed to the yellow area, the pressure is considered to be increased, when the piston is compressed to the red area, the injection pressure is considered to be too high, the injection should be stopped immediately, and whether the injection is injected into an artery or subcutaneous tissue is checked, so that the leakage of the injection occurs.
It should be noted that: the utility model has simple structure, convenient operation and lower manufacturing cost, can monitor the pressure of the injection vein in real time, effectively reduces the occurrence of drug leakage or injection position error caused by overlarge pressure during injection, and provides safety guarantee for the treatment of patients; meanwhile, the threaded connection arranged at the connecting positions of the two sides of the pressure monitor can effectively prevent the overlarge pressure, the injection needle head and the injection needle cylinder from falling off, the injection needle head is prevented from sliding to falsely penetrate into normal tissues at the moment of falling off the injection needle cylinder, the safety of injection of a patient is ensured, and unnecessary injuries are reduced.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and additions to the present utility model may be made by those skilled in the art without departing from the principles of the present utility model and such modifications and additions are to be considered as well as within the scope of the present utility model.
Claims (3)
1. The injector for monitoring the venous pressure comprises an injection handle, an injection cylinder and an injection needle, and is characterized by further comprising a pressure monitor, wherein connecting columns are respectively and correspondingly arranged at two ends of the pressure monitor, slotted holes are formed in the connecting columns, and internal threads are arranged on the slotted holes; the head end of injection tube and the tail end of injection needle all be provided with round external screw thread, just injection tube and injection needle respectively threaded connection in the spliced pole at pressure monitor both ends, pressure monitor wholly be well style of calligraphy structure, it still includes injection cavity and pressure monitoring cavity, just injection cavity communicate with each other with the slotted hole in the spliced pole, the upper surface of pressure monitoring cavity still be provided with different colour regions, its different colour regions be green, yellow and red, and every colour corresponds different pressure value respectively, injection cavity wholly be the concave structure, its concave part with pressure monitoring cavity identical.
2. The syringe of claim 1, wherein an opening is further reserved on one side of the injection chamber and is further in communication with the pressure monitoring chamber.
3. The injector for monitoring venous pressure according to claim 1, wherein the pressure monitoring chamber is of a U-shaped structure, a piston is disposed in the pressure monitoring chamber, the upper end and the lower end of the piston are correspondingly filled in the pressure monitoring chamber, a spring is further connected to the tail end of the piston, one end of the spring is connected to the inner wall of the tail end of the pressure monitoring chamber, and an atmospheric communication hole is further disposed on the inner wall of the tail end of the pressure monitoring chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222150273.7U CN220370254U (en) | 2022-08-16 | 2022-08-16 | Injector for monitoring venous pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222150273.7U CN220370254U (en) | 2022-08-16 | 2022-08-16 | Injector for monitoring venous pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220370254U true CN220370254U (en) | 2024-01-23 |
Family
ID=89571110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222150273.7U Active CN220370254U (en) | 2022-08-16 | 2022-08-16 | Injector for monitoring venous pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220370254U (en) |
-
2022
- 2022-08-16 CN CN202222150273.7U patent/CN220370254U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |