CN212438688U - Novel anterior chamber puncture liquid pumping device - Google Patents
Novel anterior chamber puncture liquid pumping device Download PDFInfo
- Publication number
- CN212438688U CN212438688U CN202020504785.7U CN202020504785U CN212438688U CN 212438688 U CN212438688 U CN 212438688U CN 202020504785 U CN202020504785 U CN 202020504785U CN 212438688 U CN212438688 U CN 212438688U
- Authority
- CN
- China
- Prior art keywords
- needle
- needle tube
- anterior chamber
- rubber strip
- cylindrical elastic
- 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
Links
- 210000002159 anterior chamber Anatomy 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 title claims abstract description 18
- 238000005086 pumping Methods 0.000 title description 3
- 239000013013 elastic material Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 6
- 206010014801 endophthalmitis Diseases 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 210000004087 cornea Anatomy 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 3
- 210000001742 aqueous humor Anatomy 0.000 description 6
- 208000015181 infectious disease Diseases 0.000 description 3
- 229960001005 tuberculin Drugs 0.000 description 3
- CPKVUHPKYQGHMW-UHFFFAOYSA-N 1-ethenylpyrrolidin-2-one;molecular iodine Chemical compound II.C=CN1CCCC1=O CPKVUHPKYQGHMW-UHFFFAOYSA-N 0.000 description 2
- 208000028006 Corneal injury Diseases 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 206010057413 Iris injury Diseases 0.000 description 2
- 229920000153 Povidone-iodine Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002690 local anesthesia Methods 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 229960001621 povidone-iodine Drugs 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 201000002862 Angle-Closure Glaucoma Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010030043 Ocular hypertension Diseases 0.000 description 1
- 206010046851 Uveitis Diseases 0.000 description 1
- 201000001326 acute closed-angle glaucoma Diseases 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004410 intraocular pressure Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Eye Examination Apparatus (AREA)
Abstract
The utility model discloses a novel anterior chamber puncture liquid extractor, which comprises a needle tube and a needle cap, wherein the front end of the needle tube is connected with a 30G needle head, the tail part of the needle tube is connected with a negative pressure bag, a cylindrical elastic adhesive tape for tensioning the inner wall of the needle tube is arranged in the needle tube, the cylindrical elastic adhesive tape is axially provided with a through cutting seam, and the cylindrical elastic adhesive tape is closed in a normal state; the tube wall of the needle tube corresponding to the position of the cylindrical elastic rubber strip is provided with an elastic pressing area, and the cylindrical elastic rubber strip is extruded to open the cutting seam when being pressed. Compared with the prior art, the utility model the advantage be: the utility model provides an original 1ml syringe at the in-process that the anterior chamber puncture used, the syringe needle overlength damages crystal, iris or cornea easily, and the negative pressure bag realizes automatic drawing of liquid, and the integrated design reduces the endophthalmitis and infects the risk, and this product possesses the advantage of portably just using, has improved operation security and is convenient for popularize and use.
Description
Technical Field
The utility model relates to a medical appliance, in particular to a novel anterior chamber puncture liquid pumping device.
Background
The paracentesis is commonly used for diagnosis of infectious uveitis, and the diagnosis of the infectious diseases of the eye is assisted by performing PCR on an aqueous humor sample to comprehensively analyze infectious antigen DNA; can also be used for treating acute angle closure glaucoma, and postoperative ocular hypertension. At present, a 26G needle (the length is 15mm) is frequently used in clinic to be matched with a tuberculin syringe or a disposable 1ml syringe for use, in the process of anterior chamber puncture use, the crystal, iris or cornea are easily damaged due to the overlong needle, a needle core of the syringe needs to be pulled out, aqueous humor flows out depending on intraocular pressure, the infection risk of endophthalmitis is increased, and inconvenience is caused due to the fact that operation of two hands is needed. Therefore, the development of a new anterior chamber puncture liquid extractor becomes a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel anterior chamber puncture liquid extractor to solve the defects.
The above object of the present invention is achieved by the following technical solutions: a novel anterior chamber puncture liquid extractor comprises a needle tube and a needle cap, wherein the front end of the needle tube is connected with a 30G needle head, the tail of the needle tube is connected with a negative pressure bag, a cylindrical elastic rubber strip for tensioning the inner wall of the needle tube is arranged in the needle tube, the cylindrical elastic rubber strip is axially provided with a through cutting seam, and the cylindrical elastic rubber strip is closed in a normal state; the tube wall of the needle tube corresponding to the position of the cylindrical elastic rubber strip is provided with an elastic pressing area, and the cylindrical elastic rubber strip is extruded to open the cutting seam when being pressed.
Furthermore, the elastic pressing area is a layer of film, the film is connected with the wall of the needle tube in a sealing mode, the inner side face of the film is tightly attached to the cylindrical rubber strip, or the film and the cylindrical rubber strip are of an integrally formed structure.
Furthermore, a protective cover is arranged outside the negative pressure bag, and an exhaust hole is formed in the protective cover.
Furthermore, the negative pressure bag is made of elastic materials and has certain resilience force.
Further, the elastic material is silica gel or rubber.
Further, the 30G needle is 4mm in length.
The utility model discloses a theory of operation: after local anesthesia, the patient takes the supine position, a 30G needle (length is 4mm) of an integrated disposable anterior chamber puncture liquid extractor horizontally penetrates into the anterior chamber at the temporal limbus under a microscope, an elastic pressing area is lightly pressed, 0.1ml to 0.3ml of aqueous humor slowly and automatically flows into the needle tube under the negative pressure action of a negative pressure bag, and after the operation is finished, povidone iodine and sterile physiological saline are adopted to flush the conjunctival sac.
Compare with the 26G syringe needle (length 15mm) cooperation tuberculin syringe or disposable 1ml syringe that present clinical commonly used, the utility model discloses reduced the contamination risk that anterior chamber puncture preoperative temporary installation syringe needle and needle tubing brought, can reduce the risk of damage lens injury, iris injury, corneal injury, anterior chamber hemorrhage and endophthalmitis. When puncturing, only one hand is used for directly extruding the elastic pressing area, aqueous humor is sucked under the negative pressure action of the negative pressure bag, the other hand is allowed to smear or perform other operations, and the device is simpler, more convenient, easier to learn, safe and reliable.
Compared with the prior art, the utility model the advantage be: the utility model provides an original 1ml syringe at the in-process that the anterior chamber puncture used, the syringe needle overlength damages crystal, iris or cornea easily, and the negative pressure bag realizes automatic drawing of liquid, and the integrated design reduces the endophthalmitis and infects the risk, and this product possesses the advantage of portably just using, has improved operation security and is convenient for popularize and use.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Fig. 3 is a schematic view of the shape change of the cross section of the cylindrical adhesive tape in fig. 1 and 2 before and after pressing.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, a novel anterior chamber puncture liquid extractor comprises a needle tube 1 and a needle cap 2, wherein the front end of the needle tube is connected with a 30G needle head, the tail part of the needle tube 1 is connected with a negative pressure bag 3, a cylindrical elastic adhesive tape 4 for tensioning the inner wall of the needle tube 1 is arranged in the needle tube 1, the cylindrical elastic adhesive tape 4 is axially provided with a through cutting seam 5, and the cylindrical elastic adhesive tape is closed in a normal state; an elastic pressing area 6 is arranged on the tube wall of the needle tube 1 corresponding to the position of the cylindrical elastic rubber strip 4, and the cylindrical elastic rubber strip 4 is extruded to open the cutting seam 5 when being pressed.
Furthermore, the elastic pressing area 6 is a layer of film, the film is connected with the wall of the needle tube in a sealing way, and the inner side surface of the film is tightly attached to the cylindrical adhesive tape, or the film and the cylindrical adhesive tape 4 are of an integrally formed structure.
Further, as shown in fig. 2, a protective cover 7 is arranged outside the negative pressure bag 3, and the protective cover 7 is provided with an exhaust hole 8.
Further, the negative pressure bag 3 is made of an elastic material and has a certain resilience.
Further, the elastic material is silica gel or rubber.
Further, the 30G needle 9 has a length of 4 mm.
The utility model discloses a theory of operation: after local anesthesia, the patient takes the supine position, a 30G needle (length is 4mm) of an integrated disposable anterior chamber puncture liquid extractor horizontally penetrates into the anterior chamber at the temporal limbus under a microscope, an elastic pressing area is lightly pressed, 0.1ml to 0.3ml of aqueous humor slowly and automatically flows into the needle tube under the negative pressure action of a negative pressure bag, and after the operation is finished, povidone iodine and sterile physiological saline are adopted to flush the conjunctival sac.
Compare with the 26G syringe needle (length 15mm) cooperation tuberculin syringe or disposable 1ml syringe that present clinical commonly used, the utility model discloses reduced the contamination risk that anterior chamber puncture preoperative temporary installation syringe needle and needle tubing brought, can reduce the risk of damage lens injury, iris injury, corneal injury, anterior chamber hemorrhage and endophthalmitis. When puncturing, only one hand is used for directly extruding the elastic pressing area, aqueous humor is sucked under the negative pressure action of the negative pressure bag, the other hand is allowed to smear or perform other operations, and the device is simpler, more convenient, easier to learn, safe and reliable.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. A novel anterior chamber puncture liquid extractor is characterized in that: the needle tube comprises a needle tube and a needle cap, wherein the front end of the needle tube is connected with a 30G needle head, the tail part of the needle tube is connected with a negative pressure bag, a cylindrical elastic rubber strip for tensioning the inner wall of the needle tube is arranged in the needle tube, a through joint is axially arranged on the cylindrical elastic rubber strip, and the cylindrical elastic rubber strip is closed in a normal state; the tube wall of the needle tube corresponding to the position of the cylindrical elastic rubber strip is provided with an elastic pressing area, and the cylindrical elastic rubber strip is extruded to open the cutting seam when being pressed.
2. The novel anterior chamber puncture liquid extractor according to claim 1, wherein: the elastic pressing area is a layer of rubber sheet, the rubber sheet is connected with the wall of the needle tube in a sealing mode, the inner side face of the rubber sheet is tightly attached to the cylindrical rubber strip, or the rubber sheet and the cylindrical rubber strip are of an integrally formed structure.
3. The novel anterior chamber puncture liquid extractor according to claim 1, wherein: the outside of the negative pressure bag is provided with a protective cover, and the protective cover is provided with an exhaust hole.
4. The novel anterior chamber puncture liquid extractor according to claim 1, wherein: the negative pressure bag is made of elastic materials and has certain resilience.
5. The novel anterior chamber puncture liquid extractor according to claim 4, wherein: the elastic material is silica gel or rubber.
6. The novel anterior chamber puncture liquid extractor according to claim 1, wherein: the length of the 30G needle is 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020504785.7U CN212438688U (en) | 2020-04-08 | 2020-04-08 | Novel anterior chamber puncture liquid pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020504785.7U CN212438688U (en) | 2020-04-08 | 2020-04-08 | Novel anterior chamber puncture liquid pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212438688U true CN212438688U (en) | 2021-02-02 |
Family
ID=74472161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020504785.7U Expired - Fee Related CN212438688U (en) | 2020-04-08 | 2020-04-08 | Novel anterior chamber puncture liquid pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212438688U (en) |
-
2020
- 2020-04-08 CN CN202020504785.7U patent/CN212438688U/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: 20210202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |