CN215778283U - Vacuum injector capable of monitoring negative pressure - Google Patents
Vacuum injector capable of monitoring negative pressure Download PDFInfo
- Publication number
- CN215778283U CN215778283U CN202122006071.0U CN202122006071U CN215778283U CN 215778283 U CN215778283 U CN 215778283U CN 202122006071 U CN202122006071 U CN 202122006071U CN 215778283 U CN215778283 U CN 215778283U
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- CN
- China
- Prior art keywords
- negative pressure
- syringe
- needle
- movable plug
- monitoring
- 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
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 46
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 210000001519 tissue Anatomy 0.000 description 10
- 210000005239 tubule Anatomy 0.000 description 7
- 238000000338 in vitro Methods 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 210000001165 lymph node Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013188 needle biopsy Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a vacuum injector capable of monitoring negative pressure, which comprises an injector main body, wherein the injector main body comprises a needle handle, a needle cylinder and a needle head, the bottom end of the injector main body is provided with the needle handle, the top end of the needle handle is provided with a fixed rod, the outer surface of the fixed rod is provided with the needle cylinder, the needle cylinder is connected with the needle head through the fixed rod, the other end of the fixed rod is provided with an injection movable plug, one side of the injection movable plug is provided with a negative pressure monitoring movable plug, a spring is arranged between the negative pressure monitoring movable plug and the injection movable plug, and one end of the needle cylinder is provided with the needle head. According to the utility model, two closed spaces are formed by the negative pressure monitoring movable plug and the injection movable plug, and under the condition of actual pressure change, the degree of extension and retraction of the movable plug and the spring is monitored by the negative pressure, so that the pressure in the injector is visualized, medical staff can roughly judge the pressure change in the injector, and the actual operation process is further facilitated.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a vacuum injector capable of monitoring negative pressure.
Background
A method for diagnosing the diseases in respiratory system by ultrasonic guide and bronchoscopic needle biopsy includes such steps as manually generating a closed negative pressure state by the needle tube connected to a three-way valve, fixing a fastener, fixing the needle to the tissue in lung or lymph node, opening the three-way valve, and sucking back a certain amount of target tissue.
However, in the actual operation process, along with the bronchoscope is moved by the medical staff in vitro, the target position fixed in vivo also moves along with the bronchoscope, and the disappearance of the closed negative pressure environment can be caused, and due to the fixation of the rear buckle, the medical staff can not clearly judge whether the negative pressure exists in the syringe in the process of operating in vitro.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a vacuum injector capable of monitoring negative pressure.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model discloses a vacuum injector capable of monitoring negative pressure, which comprises an injector main body, wherein the injector main body comprises a needle handle, a needle cylinder and a needle head, the bottom end of the injector main body is provided with the needle handle, the top end of the needle handle is provided with a fixed rod, the outer surface of the fixed rod is provided with the needle cylinder, the needle cylinder is connected with the needle head through the fixed rod, the other end of the fixed rod is provided with an injection movable plug, one side of the injection movable plug is provided with a negative pressure monitoring movable plug, a spring is arranged between the negative pressure monitoring movable plug and the injection movable plug, and one end of the needle cylinder is provided with the needle head.
As a preferred technical scheme of the utility model, the needle cylinder is of a cylindrical hollow structure, the negative pressure monitoring movable plug and the injection movable plug are of cylindrical plug-shaped structures, and the joints of the negative pressure monitoring movable plug and the injection movable plug and the needle cylinder are arranged in a gas leakage prevention mode.
As a preferred technical scheme of the utility model, the negative pressure monitoring movable plug is in sliding connection with the needle cylinder, the injection movable plug is in sliding connection with the needle cylinder, and the negative pressure monitoring movable plug and the injection movable plug are in elastic connection through a spring.
As a preferred technical scheme of the present invention, a buckle is installed on a surface of one end of the needle cylinder, the buckle penetrates into the needle cylinder, a clamping groove is installed on a surface of the fixing rod, the clamping groove is used for matching with the buckle to limit the fixing rod, the buckle is a pressing type buckle, and the fixing rod is fixedly connected with the injection movable plug.
As a preferred technical scheme of the present invention, a fixed bottom end is installed at one end of the needle, a needle is installed at one end of the fixed bottom end, a three-way valve is installed inside the needle, and a knob switch is installed inside the three-way valve and used for turning on or off the three-way valve.
As a preferable technical scheme of the utility model, the fixing rod is fixedly connected with the needle handle, and one end of the needle handle is provided with anti-skid grains.
In a preferred embodiment of the present invention, a connecting tubule is attached to one end of the needle to connect the tissue of the patient and the syringe body.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, two closed spaces are formed by the negative pressure monitoring movable plug and the injection movable plug, and under the condition of actual pressure change, the degree of extension and retraction of the movable plug and the spring is monitored by the negative pressure, so that the pressure in the injector is visualized, medical staff can roughly judge the pressure change in the injector, and the actual operation process is further facilitated. Meanwhile, the buckle is adopted for limiting operation, so that the operation of medical personnel is simple, and the syringe main body is simple in structure and convenient to use and manufacture.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a rear view of the present invention;
in the figure: 1. a syringe body; 2. a needle handle; 201. fixing the rod; 3. a needle cylinder; 301. monitoring the movable plug by negative pressure; 302. a spring; 303. injecting a movable plug; 304. buckling; 305. fixing the bottom end; 4. a needle head; 401. a three-way valve; 402. a knob switch.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Wherein like reference numerals refer to like parts throughout.
Example 1
As shown in fig. 1-3, the utility model provides a vacuum injector capable of monitoring negative pressure, which comprises an injector main body 1, wherein the injector main body 1 comprises a needle handle 2, a needle cylinder 3 and a needle head 4, the needle handle 2 is installed at the bottom end of the injector main body 1, a fixed rod 201 is installed at the top end of the needle handle 2, the needle cylinder 3 is installed on the outer surface of the fixed rod 201, the needle cylinder 3 is connected with the needle head 4 through the fixed rod 201, an injection movable plug 303 is installed at the other end of the fixed rod 201, a negative pressure monitoring movable plug 301 is installed at one side of the injection movable plug 303, a spring 302 is installed between the negative pressure monitoring movable plug 301 and the injection movable plug 303, and the needle head 4 is installed at one end of the needle cylinder 3.
Further, cylinder 3 is cylinder hollow structure, negative pressure monitoring movable stopper 301 and injection movable stopper 303 all are cylindric stopper column structure, negative pressure monitoring movable stopper 301 and injection movable stopper 303 are the leak protection gas setting with cylinder 3 junction, negative pressure monitoring movable stopper 301 is sliding connection with cylinder 3, injection movable stopper 303 is sliding connection with cylinder 3, negative pressure monitoring movable stopper 301 and injection movable stopper 303 are elastic connection through spring 302, when cylinder 3 is inside to be airtight space, negative pressure monitoring movable stopper 301 will change, carry out the back and forth movement, make the air negative pressure at negative pressure monitoring movable stopper 301 both ends the same, through the setting of spring 302, be convenient for medical personnel observe the change of negative pressure in the syringe.
The one end surface mounting of cylinder 3 has buckle 304, buckle 304 runs through to inside the cylinder 3, dead lever 201 surface mounting has the draw-in groove, it is used for cooperating with buckle 304 and accomplishes spacingly to dead lever 201, buckle 304 is push type buckle 304, dead lever 201 and injection activity stopper 303 are fixed connection, medical personnel's accessible is pressed buckle 304, block dead lever 201 through buckle 304, make dead lever 201 fix, thereby make injection activity stopper 303 fix, do not receive the influence of the inside negative pressure of cylinder 3.
Fixed bottom 305 is installed to the one end of syringe needle 4, and syringe needle 4 is installed to fixed bottom 305 one end, and 4 internally mounted of syringe needle have a three-way valve 401, and three-way valve 401 internally mounted has knob switch 402, and it is used for opening or closing three-way valve 401, and medical personnel's accessible knob switch 402 is closed or is opened the tee bend, and the inside and external contact of syringe 3 is decided to the three-way switch, closes the back, and syringe 3 is inside to be airtight space.
Connecting tubule is installed to the one end of syringe needle 4, and it is used for connecting patient's internal tissue and syringe main part 1, and medical personnel is when using syringe main part 1, and the accessible is connected connecting tubule on syringe needle 4 for syringe main part 1 is connected with patient's internal tissue, like lung tissue, conveniently carries out a series of medical treatment operations.
Specifically, when the medical care personnel uses the injector main body 1, the three-way valve 401 is firstly closed, so that when the inside of the syringe 3 is a closed space, the medical care personnel pulls the needle handle 2 to enable the fixed rod 201 to move backwards to drive the injection movable plug 303, the spring 302 and the negative pressure monitoring movable plug 301 to move backwards, so that the inside of the syringe 3 is a negative pressure environment, the medical care personnel limits the fixed rod 201 by pressing the buckle 304 to prevent rebounding under the pulling of the negative pressure, the negative pressure monitoring movable plug 301 changes to move forwards and backwards, so that the air negative pressures at two ends of the negative pressure monitoring movable plug 301 are the same, at the moment, the inside of the syringe 3 is the negative pressure environment, then the medical care personnel connects the needle head 4 with target tissues in the patient body through the connecting tubules, after the fixation is completed, the three-way valve 401 is opened, the negative pressure environment in the injector main body 1 can suck out a small part of the target tissues of the patient through the connecting tubules, the negative pressure in the syringe 3 is gradually reduced, and the spring 302 and the negative pressure monitoring movable plug 301 move; when the negative pressure monitoring movable plug 301 and the spring 302 stop moving, medical staff can judge that the negative pressure in the needle cylinder 3 disappears through the extension and retraction of the negative pressure monitoring movable plug 301 and the spring 302, the knob switch 402 closes the three-way valve 401 immediately, tissues in the syringe main body 1 are taken out, in actual operation, medical staff needs to move the bronchoscope outside the body for multiple times, the connecting tubule possibly separates from target tissues of a patient, the negative pressure in the open needle cylinder 3 of the three-way valve 401 disappears rapidly, the negative pressure monitoring movable plug 301 and the spring 302 move rapidly immediately, the medical staff can judge the connecting condition of the connecting tubules in the patient body through the phenomenon, the operation stops immediately after the negative pressure disappears, and the situation that the medical staff can not monitor the negative pressure in the syringe main body 1 in real time and operate continuously is prevented.
According to the utility model, two closed spaces are formed by the negative pressure monitoring movable plug 301 and the injection movable plug 303, and under the condition of actual pressure change, the stretching degree of the movable plug 301 and the spring 302 is monitored by negative pressure, so that the pressure in the injector main body 1 is visualized, and medical staff can roughly judge the pressure change in the injector main body 1, thereby facilitating the actual operation process. Meanwhile, the buckle 304 is used for limiting operation, so that the operation of medical personnel is simple, and the syringe main body 1 is simple in structure and convenient to use and manufacture.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a vacuum syringe of negative pressure can monitor, includes syringe main part (1), its characterized in that, syringe main part (1) is including needle handle (2), cylinder (3) and syringe needle (4), needle handle (2) are installed to the bottom of syringe main part (1), dead lever (201) are installed on the top of needle handle (2), the surface mounting of dead lever (201) has cylinder (3), cylinder (3) are connected through dead lever (201) with syringe needle (4), injection activity stopper (303) are installed to the other end of dead lever (201), negative pressure monitoring activity stopper (301) are installed to one side of injection activity stopper (303), install spring (302) between negative pressure monitoring activity stopper (301) and injection activity stopper (303), syringe needle (4) are installed to the one end of cylinder (3).
2. The vacuum syringe capable of monitoring the negative pressure as claimed in claim 1, wherein the syringe (3) is a cylindrical hollow structure, the negative pressure monitoring movable plug (301) and the injection movable plug (303) are both cylindrical plug-shaped structures, and the joint of the negative pressure monitoring movable plug (301) and the injection movable plug (303) and the syringe (3) is arranged for preventing air leakage.
3. The vacuum syringe capable of monitoring the negative pressure as claimed in claim 2, wherein the negative pressure monitoring movable plug (301) is slidably connected with the syringe (3), the injection movable plug (303) is slidably connected with the syringe (3), and the negative pressure monitoring movable plug (301) and the injection movable plug (303) are elastically connected through a spring (302).
4. The vacuum injector capable of monitoring negative pressure as claimed in claim 1, wherein a buckle (304) is installed on one end surface of the syringe (3), the buckle (304) penetrates into the syringe (3), a clamping groove is installed on the surface of the fixing rod (201) and used for being matched with the buckle (304) to limit the fixing rod (201), the buckle (304) is a pressing type buckle (304), and the fixing rod (201) and the movable injection plug (303) are fixedly connected.
5. A vacuum syringe capable of monitoring negative pressure as claimed in claim 1, wherein a fixed bottom end (305) is installed at one end of the needle (4), a needle (4) is installed at one end of the fixed bottom end (305), a three-way valve (401) is installed inside the needle (4), and a knob switch (402) is installed inside the three-way valve (401) and used for opening or closing the three-way valve (401).
6. The vacuum syringe capable of monitoring negative pressure as claimed in claim 1, wherein the fixing rod (201) is fixedly connected with the needle handle (2), and one end of the needle handle (2) is provided with an anti-slip thread.
7. The vacuum syringe capable of monitoring negative pressure as claimed in claim 1, wherein the needle (4) is provided with a connecting thin tube at one end thereof for connecting the tissue of the patient with the syringe body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122006071.0U CN215778283U (en) | 2021-08-24 | 2021-08-24 | Vacuum injector capable of monitoring negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122006071.0U CN215778283U (en) | 2021-08-24 | 2021-08-24 | Vacuum injector capable of monitoring negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215778283U true CN215778283U (en) | 2022-02-11 |
Family
ID=80150937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122006071.0U Expired - Fee Related CN215778283U (en) | 2021-08-24 | 2021-08-24 | Vacuum injector capable of monitoring negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215778283U (en) |
-
2021
- 2021-08-24 CN CN202122006071.0U patent/CN215778283U/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: 20220211 |