CN105662485B - The readable negative pressure puncture device of pressure - Google Patents
The readable negative pressure puncture device of pressure Download PDFInfo
- Publication number
- CN105662485B CN105662485B CN201610184632.7A CN201610184632A CN105662485B CN 105662485 B CN105662485 B CN 105662485B CN 201610184632 A CN201610184632 A CN 201610184632A CN 105662485 B CN105662485 B CN 105662485B
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- China
- Prior art keywords
- fixture block
- piston rod
- negative pressure
- syringe
- pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/007—Aspiration
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention discloses a kind of readable negative pressure puncture device of pressure,Including injector syringe and vacuum table,Injector syringe is internally provided with piston rod,Piston rod front end is equipped with piston,The syringe mouth of injector syringe is equipped with negative pressure control valve,Piston rod expansion locking device is equipped between injector syringe and piston rod,Vacuum magnitude between piston rod expansion locking device regulating piston and negative pressure control valve,The connector of vacuum table is connected by pipeline with the injector syringe of piston nose,The present invention closes negative pressure control valve before puncture,Pulling back pumping piston rod makes to form negative pressure in injector syringe,The vacuum magnitude in injector syringe is adjusted using piston rod expansion locking device,And pass through vacuum table and accurately read negative pressure value in injector syringe,This device effectively prevents influence of the pull syringe piston to negative pressure,Syringe is shaken and the dispersion of attention is influenced caused by positioning,Entire negative pressure puncture device is lightly beautiful,Simple operation.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of readable negative pressure puncture device of pressure.
Background technology
Puncture is that puncture is needled into body cavity extraction secretion, tissue, cell to chemically examine, and injects gas or radiography to body cavity
Agent do contrast examination or into body cavity injection of medicine a kind of Clinics, be clinically medical diagnosis on disease or treatment common side
Method has the function of that other methods are not replaced.At present, existing puncture needle is mainly punctured using common syringe,
Operation is more laborious, and whether the negative pressure value that operator will also constantly notice puncture needle while puncturing is up to standard, can not concentrate essence
Power goes positioning lesion, tends to the abnormal conditions influence puncture such as syringe shake occur, and conventional puncture needle is born in operation
It presses unstable, be easy to cause at puncture tissue or cell suction is undesirable, it is difficult to meet the needs of clinical pathology plate coating checking, instead
It is multiple to puncture the uncomfortable reaction for being also easy to produce inflammatory reaction and patient, cause the local transfer of operative site bleeding, tumour or cancer cell.
Invention content
For solution more than technical problem, the present invention provides a kind of pressure readable negative pressure puncture device, the sting device into
Stable negative pressure can be formed, and the size of negative pressure can be adjusted as needed before entering patient skin tissue.
Technical solution is as follows：A kind of readable negative pressure puncture device of pressure, key are：Including injector syringe and bear
Table is pressed, the injector syringe is internally provided with piston rod, and the piston rod front end is equipped with piston, the syringe of the injector syringe
Mouth is equipped with negative pressure control valve, and piston rod expansion locking device, the work are equipped between the injector syringe and the piston rod
Stopper rod expansion locking device adjusts the vacuum magnitude between the piston and the negative pressure control valve, and the connector of the vacuum table leads to
Piping is connected with the injector syringe of the piston nose.Advantageous effect using the technical program is closed before puncture
Negative pressure control valve is closed, pulling back pumping piston rod makes to form negative pressure in injector syringe, then utilizes piston rod expansion locking device
It adjusts the vacuum magnitude in injector syringe and remains stable, the negative pressure in injector syringe can be accurately read by vacuum table
Value, it is ensured that it, which meets, punctures requirement.
Further, above-mentioned piston rod expansion locking device includes at least one fixture block, is equipped with radially on the piston rod
Control mechanism is shunk, the fixture block is connect with the radial contraction control mechanism, and the injector syringe inner wall is equipped with fixture block
Positive stop strip.Fixture block radial contraction can be made using radial contraction control mechanism while pull piston rod backward using this programme,
Fixture block is avoided to be stopped by fixture block positive stop strip, facilitates pull piston rod, unclamps diameter after the negative pressure in injector syringe reaches requirement
To control mechanism is shunk, fixture block retraction settles out after encountering fixture block positive stop strip, so as to maintain the negative pressure in injector syringe steady
It is fixed.
Above-mentioned piston rod is cylinder, is equipped with pressure guiding pipe in an axial direction in the piston rod, which is pierced by the work
It is connected after plug with the injector syringe, the pressure guiding pipe rear end and the fittings of the vacuum table.Using the design impulse
Pressure in pipe is consistent with the pressure in injector syringe, and vacuum table need to only be connected with the pressure guiding pipe can Accurate Determining syringe
Negative pressure value in syringe is effectively simplified the connection circuit of vacuum table and injector syringe.
Above-mentioned radial contraction control mechanism includes the fixture block support plate being arranged on along its length in the piston rod, in institute
The forepart for stating fixture block support plate is equipped with the fixture block, and the fixture block is radially outward pierced by the barrel of the piston rod, the fixture block
Compression spring is equipped between support plate and the pressure guiding pipe, which is fixedly connected with the fixture block support plate, the other end and institute
It states pressure guiding pipe to be fixedly connected, the rear portion of the fixture block support plate is equipped with control button, and the control button is radially outward pierced by institute
State the barrel of piston rod.It can make fixture block support plate radially close to so as to drive fixture block by pressing control button using this programme
Radial contraction facilitates fixture block to bypass and blocks fast positive stop strip, and after unclamp control button, fixture block resets, and needle cylinder pressure is maintained to stablize, is adopted
It is easy to operate, convenient with this programme.
Above-mentioned fixture block support plate is two pieces, and two pieces of fixture block support plate faces are arranged on the both sides of the pressure guiding pipe, two
At least four fixture blocks are respectively respectively equipped with described in block in fixture block support plate, the fixture block is axially arranged on the fixture block support
On plate, the spacing between the adjacent fixture block is equal, and the rear portion of two pieces of fixture block support plates is respectively equipped with the control button.
There are multiple negative pressure regulation stalls that can meet different puncture demands using the design.
Above-mentioned fixture block positive stop strip totally two, two fixture block positive stop strip faces are arranged on the fixture block support plate radial direction
On the inner wall of the injector syringe.Injector syringe inner profile beauty is arranged on using program fixture block positive stop strip, is saved
Space.
Filter membrane is equipped in above-mentioned pressure guiding pipe.The solid impurity extracted in object can be effectively filtered out using this programme, prevents solid
Class impurity blocks the admission line of vacuum table, influences the reading of vacuum table.
The rear portion of above-mentioned piston rod is equipped with drawing handle, and the vacuum table is pressure gauge with back connection, and the vacuum table is fixed on
On the drawing handle.Push-and-pull piston rod is facilitated using the design and reads the reading on vacuum table.
The rear portion of said syringe syringe is equipped with syringe handle.Injector syringe is held when facilitating puncture using the design.
The external part of above-mentioned fixture block is equipped with guiding surface, and the guiding surface is towards the fixture block positive stop strip.Using the design
It draws and bypasses fixture block positive stop strip when taking out piston rod convenient for fixture block.
Advantageous effect：Advantageous effect using the present invention is that negative pressure control valve is closed before puncture, pulls back pumping piston rod
Make to form negative pressure in injector syringe, the negative pressure then adjusted in injector syringe using piston rod expansion locking device makes it full
Foot punctures requirement, and using the vacuum magnitude in radial contraction control mechanism locking Syringe injector so as to maintain Syringe injector
Interior negative regulation, the negative pressure value in injector syringe can be accurately read by vacuum table, this device person of being conveniently operated can concentrate
Energy positions lesion, effectively prevents influence, syringe shake and the dispersion pair of attention of the pull syringe piston to negative pressure
Influence caused by positioning, entire negative pressure puncture device is lightly beautiful, simple operation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
With reference to embodiment and attached drawing, the invention will be further described.
As shown in Figure 1, the negative pressure puncture device that a kind of pressure is readable, including injector syringe 2 and vacuum table 12, the injection
The syringe mouth of device syringe 2 is equipped with negative pressure control valve 7, and the injector syringe 2 is internally provided with piston rod 1, before the piston rod 1
End is equipped with piston 5, and piston rod expansion locking device is equipped between the injector syringe 2 and the piston rod 1, which stretches
Contracting locking device adjusts the vacuum magnitude between the piston 5 and the negative pressure control valve 7, and the connector of the vacuum table 12 passes through
Pipeline is connected with the injector syringe 2 of 5 front end of piston, and the piston rod expansion locking device includes at least one card
Block 6 is equipped with radial contraction control mechanism on the piston rod 1, and the fixture block 6 is connect with the radial contraction control mechanism,
2 inner wall of injector syringe is equipped with fixture block positive stop strip 9.
The piston rod 1 is cylinder, and pressure guiding pipe 14, the axial line of the pressure guiding pipe 14 are equipped in an axial direction in the piston rod 1
With the axle center line overlap of the piston rod 1,14 front end of pressure guiding pipe connects after being pierced by the piston 5 with the injector syringe 2
Logical, 14 rear end of pressure guiding pipe and the fittings of the vacuum table 12, the pressure guiding pipe 14 is interior to be equipped with filter membrane 13, the filter membrane
13 close to the front end of the pressure guiding pipe 14.
The radial contraction control mechanism includes the fixture block support plate 11 being arranged on along its length in the piston rod 1,
The fixture block support plate 11 is two pieces, and two pieces of 11 faces of fixture block support plate are arranged on the both sides of the pressure guiding pipe 14, two
The forepart of fixture block support plate 11 described in block is respectively respectively equipped with four fixture blocks 6, and four fixture blocks 6 are axially arranged on described
In fixture block support plate 11, the spacing between the adjacent fixture block 6 is equal, and the fixture block 6 is radially outward pierced by the piston rod 1
Barrel is respectively set between two pieces of fixture block support plates 11 and the pressure guiding pipe 14 there are two compression spring 8, two compression springs 8
It is axially distributed between the fixture block support plate 11 and the pressure guiding pipe 14, described 8 one end of compression spring and the fixture block support plate 11
It is fixedly connected, the other end is fixedly connected with the pressure guiding pipe 14, and the rear portion of two pieces of fixture block support plates 11 is respectively equipped with control
Button 10, the control button 10 is radially outward pierced by the barrel of the piston rod 1, and the control button 10 is close to the work
The rear portion of stopper rod 1, the fixture block positive stop strip 9 totally two, two 9 faces of fixture block positive stop strip are arranged on two pieces of fixture block branch
On the inner wall of the injector syringe 2 of 11 radial direction of fagging, the fixture block positive stop strip 9 is close to the rear portion of the injector syringe 2.
From this figure it can be seen that the rear portion of the injector syringe 2 is equipped with syringe handle 3, the rear portion of the piston rod 1 is set
There is drawing handle 4, the vacuum table 12 is pressure gauge with back connection, and the vacuum table 12 is fixed on the drawing handle 4, the card
The external part of block 6 is equipped with guiding surface, and the guiding surface is towards the fixture block positive stop strip 9.
The piston 5 is equipped with pressure guiding pipe via, and the front end of the pressure guiding pipe 14 is pierced by after the pressure guiding pipe via and institute
It states injector syringe 2 to connect, the filter membrane 13 is located in the pressure guiding pipe 14 in the pressure guiding pipe via, the pressure guiding pipe mistake
The hole heart line in hole is overlapped with the axial line of the injector syringe 2.
Puncture needle can be installed in the syringe mouth of injector syringe 2 during use, be then shut off negative pressure control valve 7, take out backward
Piston rod 1 is drawn to make to form negative pressure in the injector syringe 2 of 5 front end of piston, control button 10 is pressed while pull piston rod 1
Draw close two pieces of 11 radial directions of fixture block support plate, so as to drive fixture block 6 radially adjacent to avoiding in draw process by fixture block positive stop strip
9 stop and can not continue pull piston rod 1 backward, the specific negative pressure value in injector syringe 2 are read by vacuum table 12, when this
Negative pressure reaches unclamp control button 10 after requirement, and compression spring 8 is resetted so as to which fixture block support plate 11 be driven to reset, and is further driven to fixture block
6 reset, and the blocking that the fixture block 6 after reset encounters fixture block positive stop strip 9 maintains current location to stablize, so as to stop piston 5 in the external world
It is moved under the action of normal ambient pressure to the syringe mouth direction of injector syringe 2, therefore ensures that the negative pressure in injector syringe 2
To stablize, after lancet puncture then to be entered to the depth of needs, open negative pressure control valve 7, tissue or cell are inhaled into syringe,
Puncture needle is extracted, control button 10 is pressed and pushes piston rod 1 that the tissue of acquirement or cell are released preservation forward, to carry out down
One step inspection.
Finally it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the premise of without prejudice to present inventive concept and claim, can make table as multiple types under the enlightenment of the present invention
Show, such transformation is each fallen within protection scope of the present invention.
Claims (5)
1. a kind of readable negative pressure puncture device of pressure, it is characterised in that：Including injector syringe (2) and vacuum table (12), institute
It states injector syringe (2) and is internally provided with piston rod (1), piston rod (1) front end is equipped with piston (5), the injector syringe
(2) syringe mouth is equipped with negative pressure control valve (7), and piston rod is equipped between the injector syringe (2) and the piston rod (1)
Expansion locking device, the piston rod expansion locking device adjust the negative pressure between the piston (5) and the negative pressure control valve (7)
Size, the connector of the vacuum table (12) are connected by pipeline with the injector syringe (2) of the piston (5) front end；
The piston rod expansion locking device includes at least one fixture block (6), and radial contraction control is equipped on the piston rod (1)
Mechanism processed, the fixture block (6) connect with the radial contraction control mechanism, and injector syringe (2) inner wall is equipped with fixture block
Positive stop strip (9), the external part of the fixture block (6) are equipped with guiding surface, and the guiding surface is towards the fixture block positive stop strip (9)；
The piston rod (1) is cylinder, and pressure guiding pipe (14), pressure guiding pipe (14) front end are equipped in an axial direction in the piston rod (1)
It is pierced by the piston (5) to connect with injector syringe (2) afterwards, pressure guiding pipe (14) rear end and the connector of the vacuum table (12)
Connection；
The radial contraction control mechanism includes the fixture block support plate (11) being arranged on along its length in the piston rod (1),
The fixture block (6) is equipped in the forepart of the fixture block support plate (11), the fixture block (6) is radially outward pierced by the piston rod
(1) barrel is equipped with compression spring (8), compression spring (8) one end and institute between the fixture block support plate (11) and the pressure guiding pipe (14)
It states fixture block support plate (11) to be fixedly connected, the other end is fixedly connected with the pressure guiding pipe (14), the fixture block support plate (11)
Rear portion is equipped with control button (10), and the control button (10) is radially outward pierced by the barrel of the piston rod (1)；
The rear portion of the injector syringe (2) is equipped with syringe handle (3).
2. the readable negative pressure puncture device of pressure according to claim 1, it is characterised in that：The fixture block support plate (11)
It it is two pieces, two pieces of fixture block support plate (11) faces are arranged on the both sides of the pressure guiding pipe (14), two pieces of fixture block supports
At least four fixture blocks (6) are respectively respectively equipped on plate (11), the fixture block (6) is axially arranged on the fixture block support plate
(11) on, the spacing between the adjacent fixture block (6) is equal, and the rear portions of two pieces of fixture block support plates (11) is respectively equipped with described
Control button (10).
3. the readable negative pressure puncture device of pressure according to claim 2, it is characterised in that：The fixture block positive stop strip (9)
Totally two, two fixture block positive stop strip (9) faces are arranged on the syringe of two pieces of fixture block support plate (11) radial directions
On the inner wall of syringe (2).
4. the readable negative pressure puncture device of pressure according to claim 1, it is characterised in that：In the pressure guiding pipe (14)
Equipped with filter membrane (13).
5. the readable negative pressure puncture device of pressure according to claim 1, it is characterised in that：After the piston rod (1)
Portion is equipped with drawing handle (4), and the vacuum table (12) is pressure gauge with back connection, and the vacuum table (12) is fixed on the drawing handle
(4) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184632.7A CN105662485B (en) | 2016-03-28 | 2016-03-28 | The readable negative pressure puncture device of pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184632.7A CN105662485B (en) | 2016-03-28 | 2016-03-28 | The readable negative pressure puncture device of pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105662485A CN105662485A (en) | 2016-06-15 |
| CN105662485B true CN105662485B (en) | 2018-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610184632.7A Active CN105662485B (en) | 2016-03-28 | 2016-03-28 | The readable negative pressure puncture device of pressure |
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| CN (1) | CN105662485B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10857301B2 (en) | 2016-09-20 | 2020-12-08 | Endospace Corporation | Syringe with position locking plunger |
| USD804651S1 (en) | 2017-01-10 | 2017-12-05 | Howard Loonan | Syringe |
| CN106725540B (en) * | 2017-02-22 | 2024-01-12 | 西南医科大学附属医院 | Bladder detector and use method thereof |
| CN107396820A (en) * | 2017-09-22 | 2017-11-28 | 湖北楚孝生态茶叶有限公司 | Flat tea plants irrigation system |
| CN115813453A (en) * | 2022-11-16 | 2023-03-21 | 南京康友医疗科技有限公司 | Negative pressure suction biopsy needle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5891052A (en) * | 1996-06-26 | 1999-04-06 | Simmons; Paul L. | Diagnostic syringe actuator device |
| CN103908711A (en) * | 2014-04-14 | 2014-07-09 | 林新颖 | Puncture combined-type syringe |
| CN204637083U (en) * | 2015-04-28 | 2015-09-16 | 中国人民解放军第三军医大学第一附属医院 | Adjustable negative-pressure drainage device |
| CN204815021U (en) * | 2015-07-28 | 2015-12-02 | 中国人民解放军第四军医大学 | Injection negative pressure ware with motion of control piston core bar |
| CN105193461A (en) * | 2015-10-30 | 2015-12-30 | 中国人民解放军第二军医大学 | Endoscopic ultrasonography puncture needle vacuum extractor device with quantitative control negative pressure |
| CN205697852U (en) * | 2016-03-28 | 2016-11-23 | 西南医科大学附属医院 | The negative pressure puncture device of pressure can be shown |
-
2016
- 2016-03-28 CN CN201610184632.7A patent/CN105662485B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5891052A (en) * | 1996-06-26 | 1999-04-06 | Simmons; Paul L. | Diagnostic syringe actuator device |
| CN103908711A (en) * | 2014-04-14 | 2014-07-09 | 林新颖 | Puncture combined-type syringe |
| CN204637083U (en) * | 2015-04-28 | 2015-09-16 | 中国人民解放军第三军医大学第一附属医院 | Adjustable negative-pressure drainage device |
| CN204815021U (en) * | 2015-07-28 | 2015-12-02 | 中国人民解放军第四军医大学 | Injection negative pressure ware with motion of control piston core bar |
| CN105193461A (en) * | 2015-10-30 | 2015-12-30 | 中国人民解放军第二军医大学 | Endoscopic ultrasonography puncture needle vacuum extractor device with quantitative control negative pressure |
| CN205697852U (en) * | 2016-03-28 | 2016-11-23 | 西南医科大学附属医院 | The negative pressure puncture device of pressure can be shown |
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| CN105662485A (en) | 2016-06-15 |
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