CN201328862Y - Low resistance indication injector for epidural space puncture - Google Patents
Low resistance indication injector for epidural space puncture Download PDFInfo
- Publication number
- CN201328862Y CN201328862Y CNU2009201052046U CN200920105204U CN201328862Y CN 201328862 Y CN201328862 Y CN 201328862Y CN U2009201052046 U CNU2009201052046 U CN U2009201052046U CN 200920105204 U CN200920105204 U CN 200920105204U CN 201328862 Y CN201328862 Y CN 201328862Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- push rod
- injector
- low resistance
- resistance
- 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 - Lifetime
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
This utility model discloses a low resistance indication injector for epidural space puncture. The injector is the low resistance injector with the push rod resistance of less than 0.5 N, comprising an injector body and a push rod. A front part of the injector body is provided with a through hole which is connected with an indication device. An elastic body is mounted in the indication device. The elastic body is fixed to a remote end part of the indication device. This utility model uses the low resistance injector. The resistance in the operation process is small when the doctor repeatedly pushes and pulls the push rod, with convenient use. The use of the low resistance injector makes the doctor combine the traditional method after the indication of the indication device, furthermore verifying the puncture result. The clasp design of a push rod neck and the indication device body can accurately position the push rod position and make the push rod not revert, keep the pressure in the low resistance injector to make the indication device work. This utility model with simple structure and convenient use indicates that the elastic mechanism is sensitive with the pressure change, with accurate and reliable indication. The physical objective indication is combined with the doctor subjective experience handle, that is, the innovation is combined with the tradition, such that the success ratio of the puncture is high. And this utility model can be used for two purposes, with good application value.
Description
Technical field
This utility model relates to the injection with low resistance that a kind of band is detected deictic function, specifically a kind of reliably, can accurately detect and indicate with judging that puncture needle arrives the injection with low resistance of epidural space.
Background technology
The medical worker is in the cavum epidural puncture operation, how to determine that whether puncture needle has arrived epidural space is a very crucial problem, have only the accurate puncture needle of having located to arrive epidural space and just can put pipe and administration, if the malposition administration causes that easily anesthesia failure even operative failure cause death etc.The doctor judges by experience and feel whether puncture needle enters epidural space mostly in the prior art, mainly be to use injection with low resistance to confirm, injection with low resistance is to refer in particular to be defined as the syringe of push rod resistance less than 0.5N, with traditional syringe essential distinction is arranged, be the lower negative pressure characteristics that rely on epidural space in medical practice, be used in particular for judging the syringe of cavum epidural puncture position.But injection with low resistance is not directly perceived in use entirely with doctor's feel.When syringe needle punctures subcutaneous tissue into when reaching fine and close ligament tissue, syringe needle is plugged, pressure is bigger, when puncture during as spinal epidural cavity pressure discharge, the doctor relies on sensation preliminary judgement puncture needle to enter spinal epidural cavity at this moment, still can't full confirmation, need the pull injector push-rod, as push rod push-pull effort no change explanation correct position, prove that then puncture needle has entered subarachnoid space if there is cerebrospinal fluid to extract out, need puncture again.Thereby diminish with feel pressure and determine the position because puncture needle punctures into behind the spinal dura mater doctor through subcutaneous and ligament tissue, but this operation is higher to doctor's specification requirement, and randomness is strong, can't guarantee that each puncture position is all accurate, this kind method efficient is lower, easily causes anesthesia failure or post-operative complication etc.
At present, there is the technical staff to propose at the problems referred to above to place water droplet at the ordinary syringe tail end, pressure reduces after puncture needle enters spinal dura mater, and water droplet can slightly rock under the situation that ambient pressure changes, and the doctor borrows rocking of water droplet of observation further to determine the position.But this kind method is inconvenient to observe, and water droplet rocks under the faint situation and do not observe probably.
At the problems referred to above, those skilled in the art propose a kind of syringe with deictic function, but this syringe is an ordinary syringe, relying on pressure to change when using judges the influence of indicating device, the doctor sees when indicating device changes, and also needs the indication syringe unloaded to change injection with low resistance and reaffirm that this operating procedure is complicated, if control is bad, the puncture needle position changes and causes puncture failure the doctor probably when changing syringe.
In sum, at present for indicating the apparatus of puncture position to have very big demand in the cavum epidural puncture operation accurately and reliably.
The utility model content
In order to improve and remedy the defective of prior art, the purpose of this utility model be to provide a kind of reliably accurately cavum epidural puncture indicate syringe with lower resistance.
In order to realize the purpose of this utility model, this utility model adopts following technical scheme:
A kind of cavum epidural puncture is indicated syringe with lower resistance, and it comprises syringe body and push rod, and described syringe is the injection with low resistance of push rod resistance less than 0.5N; Described syringe body front portion is provided with a through hole, and this through hole communicates with an indicating device, and this indicating device is provided with elastomer, and described elastomer is fixed in the indicating device distal portion.Described syringe is the push rod resistance less than the injection with low resistance of 0.3N for best.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described through hole is positioned at the anterior sidewall of syringe body.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described indicating device and syringe body are structure as a whole.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described through hole is positioned at the syringe body front end wall.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described push rod and syringe body upper ring cap have the blocking parts that are complementary.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described syringe body rear portion is provided with the location snap ring; Described push rod is provided with the draw-in groove that is complementary with described location snap ring.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described elastomer can produce deformation with atmospheric pressure.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described syringe body leading section is direct insertion structure or screws structure.
Above-mentioned cavum epidural puncture is indicated syringe with lower resistance, and wherein, described direct insertion structure tapering is 6: 100; The described structure tapering of screwing is 6: 100.
Advantage of the present utility model and benefit:
Indicating device of the present utility model communicates with syringe body, good airproof performance, and elastomer changes with the variation of atmospheric pressure, changes obviously, is easy to observe.Because this utility model adopts injection with low resistance, after the doctor sees that in use indicating device changes, screw push rod, unlock, can reaffirm with traditional method, the success rate height, this utility model is with indicating device and injection with low resistance combination, and new method and traditional method merge to be used, and kills two birds with one stone, save the unnecessary trouble of changing syringe, saved the anesthesia surgery time simultaneously.The design of the snap ring of the draw-in groove of push rod and indicator body can accurate in locating push rod position, and push rod is not replied, and keep-ups pressure.This utility model is simple in structure, and is easy to operate, and the elastomer of indicating device is indicated accurately and reliably the puncture success rate height to pressure variation sensing sensitivity.
Foregoing has illustrated the technical solution of the utility model and beneficial effect fully, below in conjunction with the drawings and specific embodiments this utility model is done further narration, so that the public is to having more deep understanding in the utility model, the embodiment of the specific embodiment is best technical scheme, and is not to restriction of the present utility model.
Description of drawings
Fig. 1 is this utility model embodiment 1 main TV structure sketch map;
Fig. 2 looks sketch map for this utility model embodiment 1 right side;
Fig. 3 is the screw-on structure for this utility model embodiment 2 syringe body leading sections;
Fig. 4 is this utility model embodiment 3 structural representations.
The specific embodiment
As depicted in figs. 1 and 2, a kind of cavum epidural puncture is with indicating syringe, and it comprises syringe body 1 and push rod 2, and described syringe is the injection with low resistance (resistance less than 0.3N the best) of push rod 2 resistances less than 0.5N; Syringe body 1 front portion is provided with a through hole (not shown), and this through hole communicates with an indicating device 3, and indicating device 3 is provided with elastomer 31, and elastomer 31 is fixed in indicating device 3 inwall distal portion.
Above-mentioned through hole is positioned at syringe body 1 anterior sidewall, and is structure as a whole with syringe body 1.Syringe body 1 rear portion is provided with location snap ring 11.Described push rod 2 is provided with the draw-in groove 21 that is complementary with described location snap ring 11.
Described elastomer 31 can produce deformation with atmospheric pressure.Be spring in the present embodiment.
Described syringe body 1 leading section is direct insertion structure 12.Described direct insertion structure 12 taperings are 6: 100.
As shown in Figure 3, described syringe body 1 leading section is for screwing structure 13.Described structure 13 taperings of screwing are 6: 100.Other structures are with embodiment 1.
This utility model in use, at first, the doctor continues to be pushed into the ligament tissue that reaches densification after lancet puncture is gone into subcutaneous tissue, syringe needle is blocked by ligament tissue, be closed state in the syringe, touch push rod 2 this moment, the syringe internal pressure increases, because indicating device 3 and syringe body 1 communicate elastomer 31 natural deformation.With push rod 2 rotations, draw-in groove 21 is aimed at location snap ring 11 blockings and is lived then, and push rod 2 maintains static.When puncture needle after slowly inserting needle passes spinal dura mater to enter epidural space pressure discharge suddenly, elastomer 31 instantaneous answers illustrate that puncture needle has entered epidural space.The doctor observes and can reaffirm that puncture needle does not enter subarachnoid space in conjunction with traditional method after elastomer changes.The doctor rotates push rod 2 makes it be in not blocking state, and light pulling-pushing rod 2 sees if there is cerebrospinal fluid and is drawn out of, as does not see that then puncture needle is in the epidural space.Touch push rod affirmation resistance then and do not see increase,, can not confirm as needle point in epidural space so resistance is seen increase owing to be negative pressure in the epidural space.The doctor judges the puncture needle positions by the variation of elastomers 31 in the observation indicating device 3 and push rod 2 combinations of pull injection with low resistance.Elastomer 31 is observed more convenient.This utility model is simple in structure, and is easy to operate, indicates the result accurately and reliably, and this utility model combines the method for tradition and innovation, increased the success rate of puncture, has good using value and market prospect.
As shown in Figure 4, a kind of cavum epidural puncture is with indicating syringe, and it comprises syringe body 1 and push rod 2, and described syringe is the injection with low resistance (resistance less than 0.3N the best) of push rod 2 resistances less than 0.5N; Syringe body 1 front portion is provided with a through hole (not shown), and this through hole communicates with an indicating device 3, and indicating device 3 is provided with elastomer 31, and elastomer 31 is fixed in indicating device 3 distal portion.
Above-mentioned through hole is positioned at syringe body 1 anterior sidewall, and is structure as a whole with syringe body 1.Syringe body 1 and described push rod 2 are provided with the blocking parts 4 that are complementary.
Described elastomer 31 can produce deformation with atmospheric pressure.Be the elasticity vesicle in the present embodiment.
Described syringe body 1 leading section is direct insertion structure 12.Described direct insertion structure 12 taperings are 6: 100.
Claims (10)
1, a kind of cavum epidural puncture is indicated syringe with lower resistance, and it comprises syringe body and push rod, it is characterized in that, described syringe is the injection with low resistance of push rod resistance less than 0.5N; Described syringe body front portion is provided with a through hole, and this through hole communicates with an indicating device, and this indicating device is provided with elastomer, and described elastomer is fixed in the indicating device distal portion.
2, cavum epidural puncture according to claim 1 is indicated syringe with lower resistance, it is characterized in that, described syringe is the injection with low resistance of push rod resistance less than 0.3N.
3, cavum epidural puncture according to claim 1 is indicated syringe with lower resistance, it is characterized in that, described through hole is positioned at the anterior sidewall of syringe body.
4, cavum epidural puncture according to claim 3 is indicated syringe with lower resistance, it is characterized in that, described indicating device and syringe body are structure as a whole.
5, cavum epidural puncture according to claim 1 is indicated syringe with lower resistance, it is characterized in that, described through hole is positioned at the syringe body front end wall.
6, cavum epidural puncture according to claim 1 is indicated syringe with lower resistance, it is characterized in that, described push rod and syringe body upper ring cap have the blocking parts that are complementary.
7, cavum epidural puncture according to claim 6 is indicated syringe with lower resistance, it is characterized in that, described syringe body rear portion is provided with the location snap ring; Described push rod is provided with the draw-in groove that is complementary with described location snap ring.
8, indicate syringe according to any described cavum epidural puncture in the claim 1 to 7 with lower resistance, it is characterized in that described elastomer can produce deformation with atmospheric pressure.
9, cavum epidural puncture according to claim 8 is indicated syringe with lower resistance, it is characterized in that, described syringe body leading section is direct insertion structure or screws structure.
10, cavum epidural puncture according to claim 9 is indicated syringe with lower resistance, it is characterized in that, described direct insertion structure tapering is 6: 100; The described structure tapering of screwing is 6: 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201052046U CN201328862Y (en) | 2009-01-14 | 2009-01-14 | Low resistance indication injector for epidural space puncture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201052046U CN201328862Y (en) | 2009-01-14 | 2009-01-14 | Low resistance indication injector for epidural space puncture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201328862Y true CN201328862Y (en) | 2009-10-21 |
Family
ID=41222241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201052046U Expired - Lifetime CN201328862Y (en) | 2009-01-14 | 2009-01-14 | Low resistance indication injector for epidural space puncture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201328862Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108337A1 (en) * | 2009-03-27 | 2010-09-30 | Sun Dong | Device for epidural space puncturing |
| CN102895019A (en) * | 2012-11-01 | 2013-01-30 | 李志煜 | Anesthesia spinal needle with negative-pressure inner needle core |
| US9144436B2 (en) | 2013-06-24 | 2015-09-29 | Thomas A. Senatore | Apparatus for hanging drop detection of epidural space penetration |
| WO2017049990A1 (en) * | 2015-09-21 | 2017-03-30 | 河南驼人医疗器械集团有限公司 | Pressure-indicating syringe |
| WO2018166281A1 (en) * | 2017-03-16 | 2018-09-20 | 于怀庆 | Fluid injection pressure control syringe |
-
2009
- 2009-01-14 CN CNU2009201052046U patent/CN201328862Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108337A1 (en) * | 2009-03-27 | 2010-09-30 | Sun Dong | Device for epidural space puncturing |
| CN102895019A (en) * | 2012-11-01 | 2013-01-30 | 李志煜 | Anesthesia spinal needle with negative-pressure inner needle core |
| US9144436B2 (en) | 2013-06-24 | 2015-09-29 | Thomas A. Senatore | Apparatus for hanging drop detection of epidural space penetration |
| WO2017049990A1 (en) * | 2015-09-21 | 2017-03-30 | 河南驼人医疗器械集团有限公司 | Pressure-indicating syringe |
| WO2018166281A1 (en) * | 2017-03-16 | 2018-09-20 | 于怀庆 | Fluid injection pressure control syringe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201409922Y (en) | Epidural space puncture detection device | |
| CN201328862Y (en) | Low resistance indication injector for epidural space puncture | |
| CN203059765U (en) | Combined neurology inspection hammer | |
| CN203263379U (en) | Intelligent bone fascia compartment pressure measuring device based on single-chip microcomputer technology | |
| CN207412184U (en) | A kind of Cardiological depthkeeping degree puncture needle | |
| CN209122373U (en) | A kind of stomach surgery abdominal operation puncture outfit | |
| CN206756830U (en) | A kind of integrated blood glucose meter | |
| CN207236807U (en) | Extract sticky cyst fluid Thyroid gland puncture drainage device | |
| CN102715937B (en) | Epidural space puncture location indicator | |
| CN201404543Y (en) | Anti-drop bottle cap puncture needle | |
| CN206334140U (en) | Positive pressure connector urine collection bag | |
| CN204133677U (en) | Position rotates instrument control circuit | |
| CN104055616B (en) | Position rotates instrument control circuit | |
| CN201194839Y (en) | Positive pressure spinal dura mater outer gap puncture estimation apparatus | |
| CN203736672U (en) | Anesthesia puncture needle device | |
| JP3158565U (en) | Low back pressure needle-free device | |
| CN202397448U (en) | Multifunctional medical electrical torch | |
| CN207970127U (en) | A kind of arthrocentesiS instrument | |
| CN106580714B (en) | Feeding tube | |
| CN207654211U (en) | Lumbar puncture needle with guid needle | |
| CN203303481U (en) | Syringe needle for galactography | |
| CN211243630U (en) | Epidural anesthesia operation supporting device | |
| CN202844248U (en) | Automatic alarm for infusion | |
| CN215084091U (en) | Oral cavity periodontitis uses medicine syringe | |
| CN2882579Y (en) | Multifunction liquid discharger for retina |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |
|
| CX01 | Expiry of patent term |