CN204932476U - Steel ball spring formula shows pressure injection emitter - Google Patents
Steel ball spring formula shows pressure injection emitter Download PDFInfo
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- CN204932476U CN204932476U CN201520753290.7U CN201520753290U CN204932476U CN 204932476 U CN204932476 U CN 204932476U CN 201520753290 U CN201520753290 U CN 201520753290U CN 204932476 U CN204932476 U CN 204932476U
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- push rod
- steel ball
- arm
- pressure injection
- vesicle
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Abstract
Steel ball spring formula shows pressure injection emitter, comprise body and push rod, described body is provided with an arm, this arm is provided with a sealing vesicle, it is protruding that body tail end inwall is provided with a circle, is provided with the hole that runs through push rod, is provided with an elastic device in hole in the middle part of the reinforcement of push rod, described arm is arranged on body leading portion sidewall, and communicates with device cavity; This utility model 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.
Description
Technical field
This utility model relates to medical medical instruments field, and the steel ball spring formula being specifically related to a kind of clinical epidural anesthesia use shows pressure injection emitter.
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 October 31st, 2012, publication number is that the Chinese utility model patent of CN20250589U discloses one " cavum epidural puncture high-drag push rod vesicle indication injector ", this device comprises body, syringe needle and push rod and 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: (P1-P0) × S≤Fmax, and wherein P1 is sealing vesicle inner fluid pressure; P0 is 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.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.This utility model when clinical concrete practical operation, vesicle become flat while move after push rod, thus can not judge accurately due to puncture put in place after the vesicle that causes of negative pressure become flat or become flat owing to moving the vesicle caused after push rod.
On JIUYUE 10th, 2003, publication number is that the Chinese utility model 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, devise draw-in groove push rod is fixed, 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, represent 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.
Utility model content
The purpose of this utility model is that the one designed to solve the problem is safer, convenient, the simple steel ball spring formula of structure shows pressure injection emitter.
This utility model solves the technical measures that its technical problem takes:
Steel ball spring formula shows pressure injection emitter, comprises body and push rod, and described body is provided with an arm, this arm is provided with a sealing vesicle, it is protruding that body tail end inwall is provided with a circle, is provided with the hole that runs through push rod, is provided with an elastic device in hole in the middle part of the reinforcement of push rod.
Above-mentioned steel ball spring formula shows pressure injection emitter; it is characterized in that elastic device comprises steel ball, spring, elastic protecting sleeve; spring is placed in elastic protecting sleeve bosom position, and the two ends of spring are respectively equipped with a steel ball, and the diameter at elastic protecting sleeve two ends is less than the diameter of steel ball.
Above-mentioned steel ball spring formula shows pressure injection emitter, it is characterized in that described arm is arranged on body leading portion sidewall, and communicates with device cavity.
The beneficial effect that this utility model has is: puncture success rate is high, high safety, cost are low, simple to operate, be beneficial to new hand uses and facilitates the advantage of imparting knowledge to students, 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
Fig. 1 is this utility model structural representation
Fig. 2 is this utility model sectional view
Fig. 3 is the structural representation of this utility model push rod
Fig. 4 is this utility model body sectional view
Fig. 5 is this utility model close-up schematic view
Detailed description of the invention
Steel ball spring formula shows pressure injection emitter, comprise body 1 and push rod 2, described body 1 is provided with an arm 3, this arm 3 is provided with a sealing vesicle 4, body 1 tail end inwall is provided with a circle projection 5, the hole 7 that one runs through push rod 2 is provided with in the middle part of the reinforcement 6 of push rod 2, an elastic device 8 is provided with in hole 7, elastic device 8 comprises steel ball 9, spring 10, elastic protecting sleeve 11, spring 10 is placed in elastic protecting sleeve 11 bosom position, the two ends of spring 10 are respectively equipped with a steel ball 9, the diameter at elastic protecting sleeve 11 two ends is less than the diameter of steel 9 pearl, arm 3 is arranged on body 1 leading portion sidewall, and communicate with body 1 inner chamber.
First syringe needle is connected on body 1 during clinical concrete operations, pull push rod 2, by medicine or liquid inhaler body 1, grip body 1 inserting needle, arrive the compact tissue near spinal column, then thumb promotes push rod 2, in pushing course, sealing vesicle is slowly heaved, when the steel ball 9 at spring 10 two ends meets with protruding 5, due to thumb thrust, the steel ball 9 at two ends starts extrusion spring 10 simultaneously, make it that deformation occur, thus make the steel ball 9 at two ends can pass through protruding 5 smoothly, now thumb leaves push rod 2 tail end, due to sealing vesicle 4 pressure retraction, push rod 2 is caused to have a thrust backward, but this thrust is not enough to make steel ball 9 extrusion spring 10 at two ends that deformation occurs, thus steel ball 9 can not cross protruding 5, gmatjpdumamics between the steel ball 9 at two ends and protruding 5 is in a kind of dynamic balance state with the retraction force sealing vesicle 4, now seal vesicle 4 and be still in expanded state, again grip body 1 slowly inserting needle, when sealing vesicle 4 and becoming flat suddenly, represent that syringe needle successfully thrusts epidural space, namely puncture successfully.
Be more than preferred embodiment of the present utility model, all changes done according to technical solutions of the utility model, when the function produced does not exceed the scope of technical solutions of the utility model, all belong to protection of the present utility model.
Claims (3)
1. steel ball spring formula shows pressure injection emitter, comprises body and push rod, and described body is provided with an arm, this arm is provided with a sealing vesicle, it is characterized in that body tail end inwall is provided with a circle protruding, be provided with the hole that runs through push rod in the middle part of the reinforcement of push rod, in hole, be provided with an elastic device.
2. steel ball spring formula according to claim 1 shows pressure injection emitter; it is characterized in that elastic device comprises steel ball, spring, elastic protecting sleeve; spring is placed in elastic protecting sleeve bosom position, and the two ends of spring are respectively equipped with a steel ball, and the diameter at elastic protecting sleeve two ends is less than the diameter of steel ball.
3. steel ball spring formula according to claim 1 shows pressure injection emitter, it is characterized in that described arm is arranged on body leading portion sidewall, and communicates with device cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753290.7U CN204932476U (en) | 2015-09-22 | 2015-09-22 | Steel ball spring formula shows pressure injection emitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520753290.7U CN204932476U (en) | 2015-09-22 | 2015-09-22 | Steel ball spring formula shows pressure injection emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204932476U true CN204932476U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520753290.7U Active CN204932476U (en) | 2015-09-22 | 2015-09-22 | Steel ball spring formula shows pressure injection emitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204932476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166281A1 (en) * | 2017-03-16 | 2018-09-20 | 于怀庆 | Fluid injection pressure control syringe |
-
2015
- 2015-09-22 CN CN201520753290.7U patent/CN204932476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166281A1 (en) * | 2017-03-16 | 2018-09-20 | 于怀庆 | Fluid injection pressure control syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xinxiang City, Henan province 453400 Changyuan Nanpu Industrial Zone, a health science and Technology Industrial Park Patentee after: HENAN TUOREN MEDICAL DEVICE GROUP CO., LTD. Address before: Xinxiang City, Henan province 453400 Changyuan Nanpu Industrial Zone, a health science and Technology Industrial Park Patentee before: TUOREN MEDICAL DEVICE CO., LTD. |