CN102614563B - Cavum epidural puncture high-drag push rod vesicle indication injector - Google Patents
Cavum epidural puncture high-drag push rod vesicle indication injector Download PDFInfo
- Publication number
- CN102614563B CN102614563B CN201210062970.5A CN201210062970A CN102614563B CN 102614563 B CN102614563 B CN 102614563B CN 201210062970 A CN201210062970 A CN 201210062970A CN 102614563 B CN102614563 B CN 102614563B
- Authority
- CN
- China
- Prior art keywords
- push rod
- vesicle
- drag
- syringe needle
- household
- 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.)
- Active
Links
Abstract
The present invention relates to a kind of cavum epidural puncture high-drag push rod vesicle indication injector.Easy Spinal Cord or nerve when vertebra dura mater is punctured.For this reason, this cavum epidural puncture high-drag push rod vesicle indication injector, comprise body, syringe needle and push rod, on described body or on body mouth or syringe needle root be provided with an arm, this arm is provided with a sealing vesicle, or has through hole on described body or on body mouth or on syringe needle root, and this through hole seals flexible mantle, push away before push rod, elastic covering film for household bubbling, and have following relation: (P
1-P
0) × S≤Fmax, wherein P
1for sealing vesicle or elastic covering film for household bubbling inner fluid pressure; P
0for atmospheric pressure; S is the projected area of push rod seal face on push rod cross section; Fmax is the maximum static friction force between push rod and body inwall.The present invention uses simply, is easy to produce, and is widely used in surgery anesthesia and the Clinical Laboratory treatment of various medical institutions.
Description
Technical field
The present invention relates to a kind of epidural puncture high-drag push rod vesicle indication injector.
Background technology
Modern medical service, when carrying out local or general anesthesia to patient, needs first to puncture to vertebra dura mater, makes syringe needle enter vertebra epidural space.Sting shallow, vertebra dura mater cannot be penetrated, cannot normally anaesthetize; Sting dark, again easy Spinal Cord or nerve.Sensation and the experience of operator are depended in puncture success or not completely.
On JIUYUE 10th, 2003, publication number is that the Chinese invention patent of CN2571331Y discloses " a kind of cyst display pressure-preserving syringe for epidural space puncture ", this device comprises body (i.e. syringe), before this body, bottom is provided with communicating pipe, be connected with vesicle outside communicating pipe, body rearward end is provided with push rod locating groove device.
Puncture needle operationally, is first connected on body by aforementioned patent, sucks liquid or gas, takes off vesicle lid; Then puncture needle head is thrust human body subcutaneous; Pushing syringe push rod makes vesicle heave again.Before continuation inserting needle, because both hands will leave push rod afterbody, the pressure in vesicle can promote push rod backward, and vesicle is suppressed automatically.In order to keep vesicle expanded state, devising draw-in groove and being fixed by push rod, make vesicle pressure can not promote push rod backward, when both hands leave, vesicle can keep heaving state.Last hand-held body slowly advances puncture needle, when vesicle becomes flat suddenly, represents that puncture needle head successfully thrusts the epidural space of low pressure.This device instead of the feel of people, changes and shows puncture successfully with the automatic continuous monitoring pressure of vesicle, and puncture success rate improves, and the convenience of use is also improved.
But its push rod positioner complicated operation, uses inconvenience, and operator can be caused to grip shakiness, affects operating accuracy.
Summary of the invention
The present invention will solve the above-mentioned defect of prior art, provides a kind of cavum epidural puncture high-drag push rod vesicle indication injector of safe ready more.
This cavum epidural puncture high-drag push rod vesicle indication injector comprises body, syringe needle and push rod, it is characterized in that: on described body or on body mouth or syringe needle root be provided with an arm, this arm is provided with a sealing vesicle, push away before push rod, sealing vesicle expands, and has following relation: (P
1-P
0) × S≤Fmax, wherein P
1for sealing vesicle inner fluid pressure; P
0for atmospheric pressure; S is the projected area of push rod seal face on push rod cross section; Fmax is the maximum static friction force between push rod and body inwall.
Above-mentioned relation is embodied in: push away before push rod, seal vesicle expand after, unclamp push rod, push rod stands fast.Vesicle elasticity or flexible material are made, waterproof, airtight.
As optimization, described arm is arranged on body leading portion sidewall, and communicates with device cavity.
As optimization, described arm is arranged on body mouth sidewall, and communicates with device cavity.
As optimization, described arm is arranged on syringe needle heel sidewall, and communicates with needle lumen.
Another kind of design of the present invention: this epidural puncture high-drag push rod vesicle indication injector comprises body, syringe needle and push rod, it is characterized in that: on described body or on body mouth or on syringe needle root, have through hole, and this through hole seals flexible mantle, push away before push rod, elastic covering film for household bubbling, and have following relation: (P
1-P
0) × S≤Fmax, wherein P
1for elastic covering film for household bubbling inner fluid pressure; P
0for atmospheric pressure; S is the projected area of push rod seal face on push rod cross section; Fmax is the maximum static friction force between push rod and body inwall.Above-mentioned relation concrete manifestation is also: push away before push rod, seal vesicle expand after, unclamp push rod, push rod stands fast.
As optimization, described through hole is arranged on body leading portion sidewall, and communicates with device cavity.
As optimization, described through hole is arranged on body mouth sidewall, and communicates with device cavity.
As optimization, described through hole is arranged on syringe needle heel sidewall, and communicates with needle lumen.
Epidural puncture high-drag push rod vesicle indication injector of the present invention has that puncture success rate is high, high safety, cost are low, simple to operate, be beneficial to the advantage that new hand uses and facilitate teaching, even the new life of medical college also skillfully can complete the operation of vertebra dura mater puncture, surgery anesthesia and the Clinical Laboratory treatment of various medical institutions can be widely used in.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this epidural puncture high-drag push rod vesicle indication injector is described further:
Fig. 1 is the part section structural representation of this epidural puncture high-drag push rod vesicle indication injector embodiment one;
Fig. 2 is the part section structural representation of this epidural puncture high-drag push rod vesicle indication injector embodiment two;
Fig. 3 is the part section structural representation of this epidural puncture high-drag push rod vesicle indication injector embodiment three;
Fig. 4 is part section structural representation before this epidural puncture high-drag push rod vesicle indication injector embodiment four bubbling;
Fig. 5 is part section structural representation after this epidural puncture high-drag push rod vesicle indication injector embodiment four bubbling;
Fig. 6 is part section structural representation before this epidural puncture high-drag push rod vesicle indication injector embodiment five bubbling;
Fig. 7 is part section structural representation after this epidural puncture high-drag push rod vesicle indication injector embodiment five bubbling;
Fig. 8 is part section structural representation before this epidural puncture high-drag push rod vesicle indication injector embodiment six bubbling;
Fig. 9 is part section structural representation after this epidural puncture high-drag push rod vesicle indication injector embodiment six bubbling
1 is body, and 2 is syringe needle, and 3 is push rod, and 4 is side pipe, and 5 is sealing vesicle, and 6 body mouths, 7 is through hole, and 8 is elastic covering film for household, and 9 is seal rubber plug, and 10 is the garter spring at elastic covering film for household two ends.
Detailed description of the invention
Embodiment one: as shown in Figure 1, this epidural puncture high-drag push rod vesicle indication injector comprises body 1, syringe needle 2 and push rod 3, described body 1 leading portion sidewall is provided with a side pipe 4, this side pipe 4 is provided with a sealing vesicle 5, push away before push rod 3, sealing vesicle 5 expands, and has following relation: (P
1-P
0) × S≤Fmax, wherein P
1for sealing vesicle 5 inner fluid pressure; P
0for atmospheric pressure; S is the projected area of push rod 3 sealing surface on push rod 3 cross section; Fmax is the maximum static friction force between push rod 3 and body 1 inwall.
First push rod 3 is pulled, by medicine or liquid inhaler body 1 during use; Syringe needle 2 thrusts subcutaneous; Grip body 1 inserting needle, arrive the compact tissue near spinal column; Then thumb promotes push rod 3, makes sealing vesicle 5 heave to suitable size (diameter about 1 ~ 2 centimeter); Thumb leaves push rod 3 tail end, and again grip body 1 slowly inserting needle, the stiction now between push rod 3 and body 1 inwall, keep push rod 3 to stand fast, vesicle 5 is still in expanded state; Slow inserting needle, when vesicle 5 becomes flat suddenly, represents that syringe needle 2 successfully thrusts epidural space.
Wherein sealing vesicle 5 should select elasticity or flexible material to make, waterproof, airtight.
Seal rubber plug 9 can be set up, as a part for push rod in described push rod 3 front end.
Maximal friction Fmax between push rod 3 and body 1 inwall is the maximal friction that push rod 3 refers between main and body 1 inwall as a whole.
When having seal rubber plug 9, Fmax is the set of the maximal friction between seal rubber plug 9 and body 1 inwall and the maximal friction between other positions of push rod and body 1 inwall.
Embodiment two: as shown in Figure 2, described side pipe 4 is arranged on body mouth 6 sidewall, and communicates with body 1 inner chamber, and side pipe 4 is provided with a sealing vesicle 5, and remainder and structure are as shown in embodiment one.
Embodiment three: as shown in Figure 3, described side pipe 4 is arranged on syringe needle 2 heel sidewall, and communicates with syringe needle 2 inner chamber, and side pipe 4 is provided with a sealing vesicle 5, and remainder and structure are as shown in embodiment one.
Embodiment four: as shown in Figure 4,5, this epidural puncture high-drag push rod vesicle indication injector comprises body 1, syringe needle 2 and push rod 3, described body 1 leading portion sidewall has through hole 7, and this through hole seals flexible mantle 8, push away before push rod 3, elastic covering film for household 8 bubbling, and have following relation: (P
1-P
0) × S≤Fmax, wherein P
1for elastic covering film for household 8 bubbling inner fluid pressure; P
0for atmospheric pressure; S is the projected area of push rod 3 sealing surface on push rod cross section; Fmax is the maximum static friction force between push rod 3 and body 1 inwall.
During use, first pull push rod 3, by medicine or liquid inhaler body 1; Syringe needle 2 thrusts subcutaneous; Grip body 1 inserting needle, arrive the compact tissue near spinal column; Then thumb promotes push rod 3, makes elastic covering film for household 8 heave to suitable size (healthcare givers can be made obviously to discover); Thumb leaves push rod 3 tail end, again grips body 1 slowly inserting needle, the stiction now between push rod 3 and body 1 inwall, keeps push rod 3 to stand fast, be still in expanded state in elastic covering film for household 8 bubbling; Slow inserting needle, when elastic covering film for household 8 bubbling becomes flat suddenly, represents that syringe needle 2 successfully thrusts epidural space.
Embodiment five: as shown in Figure 6,7, described through hole 7 is arranged on body mouth 6 sidewall, and communicates with body 1 inner chamber, and through hole 7 is provided with an elastic covering film for household 8, and remainder and structure are as shown in embodiment four.
Embodiment six: as shown in Figure 8,9, described through hole 7 is arranged on syringe needle 2 heel sidewall, and communicates with syringe needle 2 inner chamber, and through hole 7 is provided with an elastic covering film for household 8, and remainder and structure are as shown in embodiment four.
Embodiment four, five, six Elastic mantle 8 is made with silicone rubber, and its two ends thicken or fix with garter spring 10.
Just novel to this reality illustrative of above embodiment illustrates, is anyly embodied in: push away before push rod, seal vesicle expansion, unclamp push rod, the same appliances that push rod stands fast, all fall into the protection domain of patent of the present invention.
Claims (8)
1. a cavum epidural puncture high-drag push rod vesicle indication injector, comprises body, syringe needle and push rod, it is characterized in that: on described body or syringe needle root be provided with an arm, this arm is provided with a sealing vesicle, push away before push rod, sealing vesicle expands, and has following relation: (P
1-P
0) × S≤Fmax, wherein P
1for sealing vesicle inner fluid pressure; P
0for atmospheric pressure; S is the projected area of push rod seal face on push rod cross section; Fmax is the maximum static friction force between push rod and body inwall, during use, by medicine or liquid inhaler body; Syringe needle thrusts subcutaneous; Grip body inserting needle, arrive the compact tissue near spinal column; Then thumb promotes push rod, and sealing vesicle is heaved, and thumb leaves push rod tail end, again grips the slow inserting needle of body, the stiction now between push rod and body inwall, and keep push rod to stand fast, vesicle is still in expanded state.
2. cavum epidural puncture high-drag push rod vesicle indication injector as claimed in claim 1, is characterized in that: described arm is arranged on body leading portion sidewall, and communicates with device cavity.
3. cavum epidural puncture high-drag push rod vesicle indication injector as claimed in claim 1, is characterized in that: described arm is arranged on body mouth sidewall, and communicates with device cavity.
4. cavum epidural puncture high-drag push rod vesicle indication injector as claimed in claim 1, is characterized in that: described arm is arranged on syringe needle heel sidewall, and communicates with needle lumen.
5. a cavum epidural puncture high-drag push rod elastic covering film for household indication injector, comprises body, syringe needle and push rod, it is characterized in that: have through hole on described body or on syringe needle root, and this through hole seals flexible mantle, push away before push rod, elastic covering film for household bubbling, and have following relation: (P
1-P
0) × S≤Fmax, wherein P
1for elastic covering film for household bubbling inner fluid pressure; P
0for atmospheric pressure; S is the projected area of push rod seal face on push rod cross section; Fmax is the maximum static friction force between push rod and body inwall, during use, by medicine or liquid inhaler body; Syringe needle thrusts subcutaneous; Grip body inserting needle, arrive the compact tissue near spinal column; Then thumb promotes push rod, and sealed elastic mantle is heaved, and thumb leaves push rod tail end, again grips the slow inserting needle of body, the stiction now between push rod and body inwall, and keep push rod to stand fast, elastic covering film for household is still in expanded state.
6. cavum epidural puncture high-drag push rod elastic covering film for household indication injector as claimed in claim 5, is characterized in that: described through hole is arranged on body leading portion sidewall.
7. cavum epidural puncture high-drag push rod elastic covering film for household indication injector as claimed in claim 5, is characterized in that: described through hole is arranged on body mouth sidewall.
8. cavum epidural puncture high-drag push rod elastic covering film for household indication injector as claimed in claim 5, is characterized in that: described through hole is arranged on syringe needle heel sidewall, and communicates with needle lumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210062970.5A CN102614563B (en) | 2012-03-12 | 2012-03-12 | Cavum epidural puncture high-drag push rod vesicle indication injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210062970.5A CN102614563B (en) | 2012-03-12 | 2012-03-12 | Cavum epidural puncture high-drag push rod vesicle indication injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102614563A CN102614563A (en) | 2012-08-01 |
| CN102614563B true CN102614563B (en) | 2016-02-17 |
Family
ID=46555003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210062970.5A Active CN102614563B (en) | 2012-03-12 | 2012-03-12 | Cavum epidural puncture high-drag push rod vesicle indication injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102614563B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9144436B2 (en) | 2013-06-24 | 2015-09-29 | Thomas A. Senatore | Apparatus for hanging drop detection of epidural space penetration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4284084A (en) * | 1979-06-29 | 1981-08-18 | The Kendall Company | Syringe assembly |
| CN201409922Y (en) * | 2009-03-27 | 2010-02-24 | 孙东 | Epidural space puncture detection device |
-
2012
- 2012-03-12 CN CN201210062970.5A patent/CN102614563B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4284084A (en) * | 1979-06-29 | 1981-08-18 | The Kendall Company | Syringe assembly |
| CN201409922Y (en) * | 2009-03-27 | 2010-02-24 | 孙东 | Epidural space puncture detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102614563A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103394157B (en) | A kind of operation device that there is passageways dilate, keep function | |
| US7175608B2 (en) | Device for the identification of the epidural space | |
| CN102614563B (en) | Cavum epidural puncture high-drag push rod vesicle indication injector | |
| CN202505895U (en) | High-resistance push rod vesicle indicating injector for epidural space puncturing | |
| CN204932476U (en) | Steel ball spring formula shows pressure injection emitter | |
| CN205019529U (en) | Show pressure syringe | |
| CN204864487U (en) | Multi -functional pneumoperitoneum needle | |
| CN205007378U (en) | Pressure syringe is shown to silica gel friction formula | |
| CN205007377U (en) | Pressure syringe is shown to tooth dentition formula | |
| CN203970507U (en) | A kind of joint puncture trocar | |
| CN106667542A (en) | Automatic binding and pressure applying apparatus | |
| CN207627382U (en) | The anti-infection device of puncture needle | |
| CN211067079U (en) | Inflatable positioning and guiding device for neuroendoscopy operation | |
| CN210843346U (en) | Novel thoracic cavity puncture needle device | |
| CN209595862U (en) | A kind of Pain Management anesthetic care device | |
| CN208988896U (en) | Single-blade punctures needle shield and blood taking needle | |
| CN205697956U (en) | Scalable damping perforator for anterior mediastinum Minimally Invasive Surgery | |
| GB2397235A (en) | Medico-surgical apparatus for making access to body cavities | |
| CN201996923U (en) | Disposable infusion needle head with protective function | |
| WO2023124044A1 (en) | Injection device convenient for identifying induction pressure | |
| CN211049546U (en) | Disposable sterile cannula puncture outfit | |
| CN203001111U (en) | A novel vesicle-type joint | |
| CN219895871U (en) | Puncture outfit sleeve assembly | |
| CN202052181U (en) | Guiding tube with air bag for pericardium | |
| CN217286274U (en) | Anti-return hydrops extractor for oncology department |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151229 Address after: 453400, Henan County, Xinxiang City, Changyuan Province Meng Gang reed Garden Industrial Zone Applicant after: HENAN TUOREN MEDICAL DEVICE GROUP CO., LTD. Address before: Shinan District 266000 Shandong city of Qingdao province Xuzhou Road 32, building 3, unit 2, 802 Applicant before: Yan Qing Applicant before: Zhu Dongya |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |