CN105662485A - Pressure-readable negative-pressure puncture device - Google Patents
Pressure-readable negative-pressure puncture device Download PDFInfo
- Publication number
- CN105662485A CN105662485A CN201610184632.7A CN201610184632A CN105662485A CN 105662485 A CN105662485 A CN 105662485A CN 201610184632 A CN201610184632 A CN 201610184632A CN 105662485 A CN105662485 A CN 105662485A
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- CN
- China
- Prior art keywords
- fixture block
- pressure
- piston rod
- negative pressure
- negative
- 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.)
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Classifications
-
- 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
Abstract
The invention discloses a pressure-readable negative-pressure puncture device. The pressure-readable negative-pressure puncture device comprises a syringe needle cylinder and a negative-pressure gage, wherein a piston rod is arranged inside the syringe needle cylinder, a piston is arranged at the front end of the piston rod, a negative pressure control valve is arranged at a needle cylinder nib of the syringe needle cylinder, a piston rod telescoping locking device is arranged between the syringe needle cylinder and the piston rod and is used for adjusting the size of negative pressure between the piston and the negative pressure control valve, and a joint of the negative-pressure gage communicates with the syringe needle cylinder at the front end of the piston through a pipeline. According to the pressure-readable negative-pressure puncture device, the negative pressure control valve is closed before puncture, the piston rod is pulled back so as to form negative pressure in the syringe needle cylinder, the size of negative pressure in the syringe needle cylinder is adjusted by using the piston rod telescoping locking device, and the value of the negative pressure in the syringe needle cylinder is accurately read by the negative-pressure gage; the device has the advantages that the influence on the negative pressure caused by pulling the syringe piston and the influence on locating caused by syringe shaking and attention dispersion are effectively avoided, and the entire negative-pressure puncture device is handy and attractive and is convenient in operation.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to the negative pressure puncture device that a kind of pressure is readable.
Background technology
Puncture is that puncture needle thrusts body cavity extracts secretions, tissue, cell are chemically examined, inject gas to body cavity or contrast agent does contrast examination, or to a kind of Clinics of injection of medicine in body cavity, be the common method of medical diagnosis on disease clinically or treatment, there is the effect that additive method is not replaced. at present, existing puncture needle mainly uses common syringe to puncture, operation is comparatively required great effort, whether the negative pressure value that operator also constantly to notice puncture needle while puncturing is up to standard, cannot concentrate one's energy to position focus, operation tends to occur that the abnormal conditions impacts such as syringe shake puncture, and the puncture needle negative pressure of routine is unstable, easily cause puncture place tissue or cell suction is undesirable, it is difficult to meet the needs of clinical pathology plate coating checking, repeated localised puncture is easily generated the uncomfortable reaction of inflammatory reaction and patient, cause operative site hemorrhage, the local transfer of tumor or cancerous cell.
Summary of the invention
For solving above technical problem, the present invention provides the negative pressure puncture device that a kind of pressure is readable, and this sting device just can form stable negative pressure before entering patient skin tissue, and can regulate the size of negative pressure as required.
Technical scheme is as follows: the negative pressure puncture device that a kind of pressure is readable, it it is critical only that: includes injector syringe and vacuum table, it is provided with piston rod inside described injector syringe, described piston rod front end is provided with piston, the syringe mouth of described injector syringe is provided with negative pressure control valve, piston rod expansion locking device it is provided with between described injector syringe and described piston rod, this piston rod expansion locking device regulates the vacuum magnitude between described piston and described negative pressure control valve, the joint of described vacuum table is connected with the described injector syringe of described piston nose by pipeline. the technical program is adopted to provide the benefit that closedown negative pressure control valve before puncture, pull back and take out piston rod and make to be formed in injector syringe negative pressure, then piston rod expansion locking device is utilized to regulate the vacuum magnitude in injector syringe and remain stable, the negative pressure value in injector syringe can be accurately read, it is ensured that it meets puncture requirement by vacuum table.
Further, above-mentioned piston rod expansion locking device includes at least one fixture block, is provided with radial contraction controlling organization on described piston rod, and described fixture block is connected with described radial contraction controlling organization, and described injector syringe inwall is provided with fixture block positive stop strip. Adopt this programme radial contraction controlling organization can be utilized to make fixture block radial contraction while pull piston rod backward, fixture block is avoided to be stopped by fixture block positive stop strip, facilitate pull piston rod, when the negative pressure in injector syringe reaches to unclamp after requirement radial contraction controlling organization, fixture block retraction settles out after running into fixture block positive stop strip, thus the negative regulation maintained in injector syringe.
Above-mentioned piston rod is cylinder, is provided with pressure guiding pipe in described piston rod vertically, and this pressure guiding pipe front end connects with described injector syringe after passing described piston, the fittings of described pressure guiding pipe rear end and described vacuum table. Adopting the pressure in the design pressure guiding pipe consistent with the pressure in injector syringe, vacuum table only need to connect the negative pressure value got final product in Accurate Determining injector syringe with this pressure guiding pipe, is effectively simplified the connection line of vacuum table and injector syringe.
Above-mentioned radial contraction controlling organization includes the fixture block gripper shoe being arranged in described piston rod along its length, it is provided with described fixture block in the front portion of described fixture block gripper shoe, described fixture block radially outward passes the barrel of described piston rod, it is provided with stage clip between described fixture block gripper shoe and described pressure guiding pipe, this stage clip one end is fixing with described fixture block gripper shoe to be connected, the other end is fixing with described pressure guiding pipe to be connected, the rear portion of described fixture block gripper shoe is provided with control knob, and described control knob radially outward passes the barrel of described piston rod. Adopting this programme can pass through to press control knob makes fixture block gripper shoe radially near thus driving fixture block radial contraction, fixture block is facilitated to walk around the fast positive stop strip of card, after unclamping control knob, card block reset, maintain pin cylinder pressure stable, adopt this programme simple to operate, convenient.
Above-mentioned fixture block gripper shoe is two pieces, two pieces of described fixture block gripper shoes are just to the both sides being arranged on described pressure guiding pipe, two pieces of described fixture block gripper shoes are respectively respectively equipped with fixture block described at least four, described fixture block is axially arranged in described fixture block gripper shoe, spacing between adjacent described fixture block is equal, and the rear portion of two pieces of described fixture block gripper shoes is respectively equipped with described control knob. The design is adopted to have multiple negative pressure regulation stall can meet different puncture demand.
Above-mentioned fixture block positive stop strip totally two, two described fixture block positive stop strips are just on the inwall being arranged on described fixture block gripper shoe described injector syringe radially. Adopt program fixture block positive stop strip to be arranged on injector syringe inner profile attractive in appearance, save space.
It is provided with filter membrane in above-mentioned pressure guiding pipe. Adopt this programme can effectively filter out the solid impurity extracted in thing, it is prevented that the admission line of solid kind impurity blocking vacuum table, affect the reading of vacuum table.
The rear portion of above-mentioned piston rod is provided with drawing handle, and described vacuum table is pressure gauge with back connection, and described vacuum table is fixed on described drawing handle. The design is adopted to facilitate push-and-pull piston rod and the reading read on vacuum table.
The rear portion of said syringe syringe is provided with syringe handle. Adopt when the design is convenient to be punctured and grip injector syringe.
The external part of above-mentioned fixture block is provided with guiding surface, and this guiding surface is towards described fixture block positive stop strip. Adopt the design to draw to be easy to fixture block when taking out piston rod and walk around fixture block positive stop strip.
Beneficial effect: adopt and the invention has the beneficial effects as follows closedown negative pressure control valve before puncture, pull back and take out piston rod and make to be formed in injector syringe negative pressure, then utilizing piston rod expansion locking device to regulate the negative pressure in injector syringe makes it meet puncture requirement, and utilize the vacuum magnitude in radial contraction controlling organization locking pin barrel syringe thus the negative regulation that maintains in Syringe injector, the negative pressure value in injector syringe can be accurately read by vacuum table, this device facilitates operator can concentrate one's energy to position focus, effectively prevent the impact on negative pressure of the pull syringe piston, the impact that location is caused by the dispersion of syringe shake and attention, whole negative pressure puncture device is lightly attractive in appearance, simple operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying 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 syringe mouth of this injector syringe 2 is provided with negative pressure control valve 7, described injector syringe 2 is internal is provided with piston rod 1, described piston rod 1 front end is provided with piston 5, it is provided with piston rod expansion locking device between described injector syringe 2 and described piston rod 1, this piston rod expansion locking device regulates the vacuum magnitude between described piston 5 and described negative pressure control valve 7, the joint of described vacuum table 12 is connected with the described injector syringe 2 of described piston 5 front end by pipeline, described piston rod expansion locking device includes at least one fixture block 6, described piston rod 1 is provided with radial contraction controlling organization, described fixture block 6 is connected with described radial contraction controlling organization, described injector syringe 2 inwall is provided with fixture block positive stop strip 9.
Described piston rod 1 is cylinder, pressure guiding pipe 14 it is provided with vertically in described piston rod 1, the axial line of this pressure guiding pipe 14 is overlapping with the axial line of described piston rod 1, described pressure guiding pipe 14 front end connects with described injector syringe 2 after passing described piston 5, the fittings of described pressure guiding pipe 14 rear end and described vacuum table 12, being provided with filter membrane 13 in described pressure guiding pipe 14, described filter membrane 13 is near the front end of described pressure guiding pipe 14.
Described radial contraction controlling organization includes the fixture block gripper shoe 11 being arranged in described piston rod 1 along its length, described fixture block gripper shoe 11 is two pieces, two pieces of described fixture block gripper shoes 11 are just to the both sides being arranged on described pressure guiding pipe 14, four described fixture blocks 6 respectively it are respectively equipped with in the front portion of two pieces of described fixture block gripper shoes 11, four described fixture blocks 6 are axially arranged in described fixture block gripper shoe 11, spacing between adjacent described fixture block 6 is equal, described fixture block 6 radially outward passes the barrel of described piston rod 1, two stage clips 8 it are provided with respectively between two pieces of described fixture block gripper shoes 11 and described pressure guiding pipe 14, two described stage clip 8 axial distribution are between described fixture block gripper shoe 11 and described pressure guiding pipe 14, described stage clip 8 one end is fixing with described fixture block gripper shoe 11 to be connected, the other end is fixing with described pressure guiding pipe 14 to be connected, the rear portion of two pieces of described fixture block gripper shoes 11 is respectively equipped with control knob 10, described control knob 10 radially outward passes the barrel of described piston rod 1, and described control knob 10 is near the rear portion of described piston rod 1, described fixture block positive stop strip 9 totally two, two described fixture block positive stop strips 9 are just on the inwall being arranged on two pieces of described fixture block gripper shoes 11 described injector syringe 2 radially, described fixture block positive stop strip 9 is near the rear portion of described injector syringe 2.
It may also be seen that, the rear portion of described injector syringe 2 is provided with syringe handle 3, the rear portion of described piston rod 1 is provided with drawing handle 4, described vacuum table 12 is pressure gauge with back connection, described vacuum table 12 is fixed on described drawing handle 4, the external part of described fixture block 6 is equipped with guiding surface, and this guiding surface is towards described fixture block positive stop strip 9.
Described piston 5 is provided with pressure guiding pipe via, the front end of described pressure guiding pipe 14 connects with described injector syringe 2 after passing described pressure guiding pipe via, described filter membrane 13 is positioned at the described pressure guiding pipe 14 of described pressure guiding pipe via, and the hole heart line of described pressure guiding pipe via overlaps with the axial line of described injector syringe 2.
Puncture needle can be installed during use in the syringe mouth of injector syringe 2, it is then shut off negative pressure control valve 7, pull piston rod 1 makes the interior formation negative pressure of injector syringe 2 of piston 5 front end backward, pressing control knob 10 while pull piston rod 1 makes two pieces of fixture block gripper shoes 11 radially draw close, thus drive fixture block 6 radially adjacent to, avoid being stopped by fixture block positive stop strip 9 in draw process and pull piston rod 1 backward cannot being continued, the concrete negative pressure value in injector syringe 2 is read by vacuum table 12, when this negative pressure unclamps control knob 10 after reaching requirement, stage clip 8 resets thus driving fixture block gripper shoe 11 to reset, it is further driven to fixture block 6 reset, the stop maintenance current location that fixture block 6 after reset runs into fixture block positive stop strip 9 is stable, thus stopping that piston 5 moves to the syringe mouth direction of injector syringe 2 under the effect of extraneous normal ambient pressure, therefore ensure that the negative regulation in injector syringe 2, then after lancet puncture being entered the degree of depth needed, open negative pressure control valve 7, tissue or cell are inhaled in syringe, extract puncture needle, pressing control knob 10 promotes forward piston rod 1 that the tissue obtained or cell are released preservation, to carry out next step to check.
Finally it should be noted that; foregoing description is only the preferred embodiments of the present invention; those of ordinary skill in the art is under the enlightenment of the present invention; under the premise without prejudice to present inventive concept and claim; can making and representing like multiple types, such conversion each falls within protection scope of the present invention.
Claims (10)
1. the negative pressure puncture device that a pressure is readable, it is characterized in that: include injector syringe (2) and vacuum table (12), described injector syringe (2) is internal is provided with piston rod (1), described piston rod (1) front end is provided with piston (5), the syringe mouth of described injector syringe (2) is provided with negative pressure control valve (7), it is provided with piston rod expansion locking device between described injector syringe (2) and described piston rod (1), this piston rod expansion locking device regulates the vacuum magnitude between described piston (5) and described negative pressure control valve (7), the joint of described vacuum table (12) is connected with the described injector syringe (2) of described piston (5) front end by pipeline.
2. the negative pressure puncture device that pressure according to claim 1 is readable, it is characterized in that: described piston rod expansion locking device includes at least one fixture block (6), described piston rod (1) is provided with radial contraction controlling organization, described fixture block (6) is connected with described radial contraction controlling organization, and described injector syringe (2) inwall is provided with fixture block positive stop strip (9).
3. the negative pressure puncture device that pressure according to claim 1 and 2 is readable, it is characterized in that: described piston rod (1) is cylinder, pressure guiding pipe (14) it is provided with vertically in described piston rod (1), this pressure guiding pipe (14) front end passes described piston (5) and connects with injector syringe (2) afterwards, the fittings of described pressure guiding pipe (14) rear end and described vacuum table (12).
4. the negative pressure puncture device that pressure according to claim 2 is readable, it is characterized in that: described radial contraction controlling organization includes the fixture block gripper shoe (11) being arranged in described piston rod (1) along its length, it is provided with described fixture block (6) in the front portion of described fixture block gripper shoe (11), described fixture block (6) radially outward passes the barrel of described piston rod (1), stage clip (8) it is provided with between described fixture block gripper shoe (11) and described pressure guiding pipe (14), this stage clip (8) one end is fixing with described fixture block gripper shoe (11) to be connected, the other end is fixing with described pressure guiding pipe (14) to be connected, the rear portion of described fixture block gripper shoe (11) is provided with control knob (10), described control knob (10) radially outward passes the barrel of described piston rod (1).
5. the negative pressure puncture device that pressure according to claim 4 is readable, it is characterized in that: described fixture block gripper shoe (11) is two pieces, two pieces of described fixture block gripper shoes (11) are just to the both sides being arranged on described pressure guiding pipe (14), two pieces of described fixture block gripper shoes (11) are respectively respectively equipped with fixture block described at least four (6), described fixture block (6) is axially arranged on described fixture block gripper shoe (11), spacing between adjacent described fixture block (6) is equal, the rear portion of two pieces of described fixture block gripper shoes (11) is respectively equipped with described control knob (10).
6. the negative pressure puncture device that pressure according to claim 5 is readable, it is characterized in that: described fixture block positive stop strip (9) totally two, two described fixture block positive stop strips (9) are just on the inwall being arranged on two pieces of described fixture block gripper shoes (11) described injector syringe (2) radially.
7. the negative pressure puncture device that pressure according to claim 3 is readable, it is characterised in that: in described pressure guiding pipe (14), it is provided with filter membrane (13).
8. the negative pressure puncture device that pressure according to claim 1 is readable, it is characterized in that: the rear portion of described piston rod (1) is provided with drawing handle (4), described vacuum table (12) is pressure gauge with back connection, and described vacuum table (12) is fixed on described drawing handle (4).
9. the negative pressure puncture device that pressure according to claim 1 is readable, it is characterised in that: the rear portion of described injector syringe (2) is provided with syringe handle (3).
10. negative pressure puncture device according to claim 5, it is characterised in that: the external part of described fixture block (6) is provided with guiding surface, and this guiding surface is towards described fixture block positive stop strip (9).
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 true CN105662485A (en) | 2016-06-15 |
| CN105662485B CN105662485B (en) | 2018-06-22 |
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| 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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| Country | Link |
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| CN (1) | CN105662485B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725540A (en) * | 2017-02-22 | 2017-05-31 | 西南医科大学附属医院 | A kind of application method of bladder detector and bladder detector |
| 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 |
| USD804651S1 (en) | 2017-01-10 | 2017-12-05 | Howard Loonan | Syringe |
| US10857301B2 (en) | 2016-09-20 | 2020-12-08 | Endospace Corporation | Syringe with position locking plunger |
| 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 |
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| 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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2016
- 2016-03-28 CN CN201610184632.7A patent/CN105662485B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Cited By (6)
| 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 |
| CN106725540A (en) * | 2017-02-22 | 2017-05-31 | 西南医科大学附属医院 | A kind of application method of bladder detector and bladder detector |
| 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 |
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|---|---|
| CN105662485B (en) | 2018-06-22 |
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