CN107982586B - Self-locking type negative pressure suction syringe - Google Patents
Self-locking type negative pressure suction syringe Download PDFInfo
- Publication number
- CN107982586B CN107982586B CN201711439216.8A CN201711439216A CN107982586B CN 107982586 B CN107982586 B CN 107982586B CN 201711439216 A CN201711439216 A CN 201711439216A CN 107982586 B CN107982586 B CN 107982586B
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- CN
- China
- Prior art keywords
- rod
- syringe
- negative pressure
- self
- rods
- 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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- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000002483 medication Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/64—Containers with integrated suction means
- A61M1/67—Containers incorporating a piston-type member to create suction, e.g. syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a self-locking type syringe for negative pressure suction, which comprises a syringe body, wherein the syringe body comprises a syringe barrel and a piston rod arranged in the syringe barrel; the method is characterized in that: the self-locking mechanism comprises a lower ring body and connecting rods arranged on the left side and the right side of the lower ring body; the lower ring body is sleeved on the outer wall of the injection cylinder; one end of the connecting rod is fixedly connected with the lower ring body, and the other end of the connecting rod passes through a perforation arranged at the ear part of the upper end part of the injection cylinder and is fixedly connected with the upper pushing handle of the piston rod; the connecting rods are provided with holes which are uniformly arranged; the device also comprises a T-shaped rod which comprises a cross rod and a tri-folded rod vertically connected with the cross rod; the cross rod is connected with the lug part through a clamping structure; the three-folding rod comprises three sections of rods which are connected by movable shafts. The invention provides a self-locking type syringe for negative pressure suction, which can control the accurate movement of a piston rod, and also generate and maintain negative pressure for continuous negative pressure drainage of an operation cavity.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a self-locking type negative pressure suction syringe.
Background
Syringes are the most commonly used medical devices in the clinic, which are commonly used to inject medications into the body, but are also commonly used to aspirate fluids or soft tissue for diagnostic or therapeutic purposes. The syringe generally includes a needle, a barrel and a plunger, and a worker pulls the plunger outwardly to create a suction negative pressure within the barrel that draws fluid or soft tissue from the needle.
However, when the traditional injector is used, the piston rod is sucked down by negative pressure, and in order to fix the piston rod to a certain extent, medical staff clamps the piston rod by using a clamp, so that the piston rod cannot be sucked down by the negative pressure; the above operation has the following drawbacks: the clip is unstable in fixation and is easy to pop up; and can contaminate the piston rod; most importantly, it is not possible to control the adjustment of the telescopic position of the piston rod.
In view of the foregoing, there is a need to design an injection negative pressure device that overcomes the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a self-locking type negative pressure suction syringe which can control the accurate movement of a piston rod and also generate and maintain negative pressure for continuous negative pressure drainage of an operation cavity.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the self-locking type negative pressure suction syringe comprises a syringe body, wherein the syringe body comprises a syringe barrel and a piston rod arranged in the syringe barrel; the method is characterized in that:
the self-locking mechanism comprises a lower ring body and connecting rods arranged at the left side and the right side of the lower ring body; the lower ring body is sleeved on the outer wall of the injection cylinder; one end of the connecting rod is fixedly connected with the lower ring body; the other end passes through the through hole of the lug part arranged at the upper end part of the injection tube and is fixedly connected with the upper end push handle of the piston rod;
the connecting rods are provided with holes which are uniformly arranged;
the device also comprises a T-shaped rod which comprises a cross rod and a tri-folded rod vertically connected with the cross rod; the cross rod is connected with the lug part through a clamping structure;
the three-folding rod comprises three sections of rods which are connected by movable shafts; the rod bodies on the two sides are inserted into the openings of the corresponding connecting rods after being folded for 90 degrees, so that locking is completed.
The self-locking type syringe for negative pressure suction, wherein the clamping structure comprises a cylindrical cylinder arranged in the lug part, and a plurality of clamping grooves are formed in the side wall of the cylinder;
the side wall of the cross rod is provided with a clamping strip matched with the clamping groove;
positive and negative magnetic poles are respectively arranged in the clamping strip and the clamping groove.
The self-locking type syringe for negative pressure suction, wherein the length of the connecting rod is the same as that of the piston rod;
the connecting rod is made of medical plastic; the lower ring body is made of medical plastic made of transparent materials.
The self-locking type injector for negative pressure suction, wherein the three-section rod comprises a fixed rod arranged in the middle part and movable rods respectively arranged at two sides of the fixed rod;
the movable rod is connected with the fixed rod through a rotating shaft;
the end part of the movable rod is provided with a rubber pad which is inserted into the perforation and then is propped against the outer wall of the injection cylinder;
the self-locking type syringe for negative pressure suction, as described above, further comprises a drainage tube which is sleeved on the liquid inlet at the front end of the syringe.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the self-locking type injector for negative pressure suction, the purpose of controlling the movement of the piston rod is achieved through the self-locking mechanism arranged on the outer side; can be propped against the generated lasting negative pressure, so that the device is safe and practical;
2. according to the self-locking type negative pressure suction syringe, the purpose of accurately adjusting the position is achieved by adjusting the difference of the positions of the through holes in the connecting rod inserted by the three-fold rod;
3. the self-locking type injector for negative pressure suction has the advantages of simple structure, convenient use and lower cost, and is suitable for being widely popularized to clinical practice.
Drawings
FIG. 1 is a schematic view of a self-locking negative pressure suction syringe according to the present invention;
fig. 2 is a schematic view showing the structure of a self-locking syringe for negative pressure suction in a use state of the syringe according to the present invention;
FIG. 3 is a schematic view showing the structure of a syringe of the self-locking type negative pressure suction syringe of the present invention;
FIG. 4 is a schematic structural view of a self-locking mechanism of a self-locking negative pressure suction syringe according to the present invention;
reference numerals illustrate:
1. syringe 2, piston rod 3 and liquid inlet
4. Lower ring body 5, connecting rod 6 and ear
7. Perforations 8, openings 9, crossbars
10. Three folding bars 11, cylinders 12 and clamping grooves
13. Clip strip 14, drainage tube
Detailed Description
The present invention will now be described in further detail with reference to examples for the purpose of facilitating understanding of the objects, technical solutions and effects thereof.
As shown in fig. 1, 2, 3 and 4, the self-locking type syringe for negative pressure suction according to the present invention comprises a syringe body including a syringe barrel 1 and a piston rod 2 provided in the syringe barrel 1; the method is characterized in that: the self-locking mechanism comprises a lower ring body 4 and connecting rods 5 arranged on the left side and the right side of the lower ring body 4; the lower ring body 4 is sleeved on the outer wall of the injection tube 1; one end of the connecting rod 5 is fixedly connected with the lower ring body 4; the other end passes through a perforation 7 arranged at the lug part 6 at the upper end part of the injection tube 1 and is fixedly connected with the upper push handle of the piston rod 2; the connecting rod 5 is provided with holes 8 which are uniformly arranged; the folding device also comprises a T-shaped rod, and comprises a cross rod 10 and a tri-folding rod 10 vertically connected with the cross rod 10; the cross rod 10 is connected with the ear part 6 through a clamping structure; the three-folding rod 10 comprises three sections of rods which are connected by movable shafts; the rod bodies on the two sides are inserted into the corresponding openings 8 of the connecting rods 5 after being folded for 90 degrees to finish locking.
When the self-locking type syringe for negative pressure suction is used, the drainage tube 14 is connected to the liquid inlet 3; firstly, the cross rod 10 is pulled out of the cylinder 11 of the ear part 6, and then the tri-folded rod 10 is taken out of the perforation 7; extracting a certain negative pressure; when the cross rod is in a proper position, the tri-folded rod 10 is pressed down, and the cross rod 10 is inserted into the cylinder 11;
the invention relates to a self-locking type injector for negative pressure suction, wherein perforations 7 are uniformly and vertically arranged on a connecting rod 5; so as to accurately adjust the movement of the piston rod 2.
As shown in fig. 1, 2, 3 and 4, the self-locking syringe for negative pressure suction according to the present invention comprises a cylindrical cylinder 11 provided in an ear 6, and a plurality of clamping grooves 12 are provided on the side wall of the cylinder 11; the side wall of the cross bar 10 is provided with a clamping strip 13 matched with the clamping groove 12; positive and negative magnetic poles are respectively arranged in the clamping strip 13 and the clamping groove 12.
The invention relates to a self-locking type syringe for negative pressure suction, wherein a clamping structure is arranged at an ear part 6 of a syringe 1 and is used for clamping a connecting rod 5 so as to realize the purpose of adjusting a piston rod 2.
In order to ensure the clamping connection between the cross rod 10 and the injection cylinder 1, the self-locking type syringe for negative pressure suction is provided with positive and negative magnetic poles in the syringe to ensure certain adsorption force.
As shown in fig. 1, 2, 3 and 4, the self-locking syringe for negative pressure suction according to the present invention has the same length of the connecting rod 5 as the piston rod 2; the connecting rod 5 is made of medical plastic; the lower ring body 4 is made of medical plastic made of transparent materials.
As shown in fig. 1, 2, 3 and 4, the self-locking type injector for negative pressure suction according to the present invention comprises a fixed rod arranged in the middle part and movable rods respectively arranged at both sides of the fixed rod; the movable rod is connected with the fixed rod through a rotating shaft; the end of the movable rod is provided with a rubber pad which is inserted into the perforation 7 and then is propped against the outer wall of the injection tube 1.
The invention relates to a self-locking type syringe for negative pressure suction, which comprises three sections of rods, wherein the three sections of rods can be inserted into or separated from the syringe to ensure that the syringe moves back and forth.
As shown in fig. 1, 2, 3 and 4, the self-locking type syringe for negative pressure suction according to the present invention further comprises a drainage tube 14 which is sleeved on the liquid inlet 3 at the front end of the syringe 1.
The present invention has been further described with reference to the examples, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (4)
1. The self-locking type negative pressure suction syringe comprises a syringe body, wherein the syringe body comprises a syringe barrel and a piston rod arranged in the syringe barrel; the method is characterized in that:
the self-locking mechanism comprises a lower ring body and connecting rods arranged on the left side and the right side of the lower ring body; the lower ring body is sleeved on the outer wall of the injection cylinder; one end of the connecting rod is fixedly connected with the lower ring body; the other end passes through the through hole of the lug part arranged at the upper end part of the injection tube and is fixedly connected with the upper end push handle of the piston rod;
the connecting rods are provided with holes which are uniformly arranged;
the device also comprises a T-shaped rod which comprises a cross rod and a tri-folded rod vertically connected with the cross rod; the cross rod is connected with the lug part through a clamping structure;
the three-folding rod comprises three sections of rods, the first section of rods is connected with the second section of rods through a movable shaft, and the second section of rods is connected with the third section of rods through a movable shaft; the first section bar and the third section bar body are inserted into the corresponding holes of the connecting bars after being folded for 90 degrees to finish locking;
the clamping structure comprises a cylindrical cylinder arranged in the lug part, and a plurality of clamping grooves are formed in the side wall of the cylinder;
the side wall of the cross rod is provided with a clamping strip matched with the clamping groove;
positive and negative magnetic poles are respectively arranged in the clamping strip and the clamping groove.
2. The self-locking negative pressure suction syringe according to claim 1, wherein:
the length of the connecting rod is the same as that of the piston rod;
the connecting rod is made of medical plastic; the lower ring body is made of medical plastic made of transparent materials.
3. The self-locking negative pressure suction syringe according to claim 2, wherein:
the three-section rod comprises a fixed rod arranged in the middle and movable rods respectively arranged at two sides of the fixed rod;
the movable rod is connected with the fixed rod through a rotating shaft;
the end of the movable rod is provided with a rubber pad which is inserted into the perforation and then is propped against the outer wall of the injection cylinder.
4. A self-locking negative pressure suction syringe according to claim 3, wherein:
the syringe also comprises a drainage tube which is sleeved on the liquid inlet at the front end of the syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439216.8A CN107982586B (en) | 2017-12-27 | 2017-12-27 | Self-locking type negative pressure suction syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439216.8A CN107982586B (en) | 2017-12-27 | 2017-12-27 | Self-locking type negative pressure suction syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107982586A CN107982586A (en) | 2018-05-04 |
| CN107982586B true CN107982586B (en) | 2024-01-09 |
Family
ID=62041791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439216.8A Active CN107982586B (en) | 2017-12-27 | 2017-12-27 | Self-locking type negative pressure suction syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107982586B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111249014B (en) * | 2020-02-19 | 2021-03-19 | 西安交通大学医学院第一附属医院 | Medical perfusion device capable of being quantitatively adjusted for operation |
| CN114738542B (en) * | 2022-03-15 | 2024-04-12 | 江苏照友石化机械有限公司 | Manual orifice plate choke valve convenient to adjust |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001008557A1 (en) * | 1999-08-02 | 2001-02-08 | Mueller Hans | Syringe |
| CN2673419Y (en) * | 2004-01-05 | 2005-01-26 | 董永华 | Self locking type injector |
| KR20100024571A (en) * | 2008-08-26 | 2010-03-08 | 박수희 | Injector for fine-needle aspiration biopsy |
| JP2011078620A (en) * | 2009-10-08 | 2011-04-21 | Hillside Lab:Kk | Fixture for syringe |
| CN202342534U (en) * | 2011-11-22 | 2012-07-25 | 李明 | Disposable continuous negative pressure aspirator |
| CN102836485A (en) * | 2012-09-28 | 2012-12-26 | 徐雪花 | Self-destructive injector |
| CN106267388A (en) * | 2016-08-22 | 2017-01-04 | 陈玉兵 | A kind of brothers' microsurgery special Minitype negative pressure adjustable drainage device |
| CN106924842A (en) * | 2011-09-30 | 2017-07-07 | 贝克顿·迪金森法国公司 | Attachable piston rod and related packaging |
| CN208552621U (en) * | 2017-12-27 | 2019-03-01 | 西安市第一医院 | A kind of self-locking type vacuum suction syringe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040122345A1 (en) * | 1999-08-02 | 2004-06-24 | Hans Muller | Body fluid aspiration and injection syringe |
-
2017
- 2017-12-27 CN CN201711439216.8A patent/CN107982586B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001008557A1 (en) * | 1999-08-02 | 2001-02-08 | Mueller Hans | Syringe |
| CN2673419Y (en) * | 2004-01-05 | 2005-01-26 | 董永华 | Self locking type injector |
| KR20100024571A (en) * | 2008-08-26 | 2010-03-08 | 박수희 | Injector for fine-needle aspiration biopsy |
| JP2011078620A (en) * | 2009-10-08 | 2011-04-21 | Hillside Lab:Kk | Fixture for syringe |
| CN106924842A (en) * | 2011-09-30 | 2017-07-07 | 贝克顿·迪金森法国公司 | Attachable piston rod and related packaging |
| CN202342534U (en) * | 2011-11-22 | 2012-07-25 | 李明 | Disposable continuous negative pressure aspirator |
| CN102836485A (en) * | 2012-09-28 | 2012-12-26 | 徐雪花 | Self-destructive injector |
| CN106267388A (en) * | 2016-08-22 | 2017-01-04 | 陈玉兵 | A kind of brothers' microsurgery special Minitype negative pressure adjustable drainage device |
| CN208552621U (en) * | 2017-12-27 | 2019-03-01 | 西安市第一医院 | A kind of self-locking type vacuum suction syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107982586A (en) | 2018-05-04 |
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