CN204840519U - Can regulate and control negative pressure syringe of inserting needle degree of depth - Google Patents
Can regulate and control negative pressure syringe of inserting needle degree of depth Download PDFInfo
- Publication number
- CN204840519U CN204840519U CN201520439031.7U CN201520439031U CN204840519U CN 204840519 U CN204840519 U CN 204840519U CN 201520439031 U CN201520439031 U CN 201520439031U CN 204840519 U CN204840519 U CN 204840519U
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- piston
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- syringe needle
- negative pressure
- median septum
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Abstract
The utility model belongs to the technical field of the medical equipment, a can regulate and control negative pressure syringe of inserting needle degree of depth is related to, including interior piston assembly, inner skleeve, outer sleeve, outer piston and syringe needle, interior piston assembly includes interconnect's interior handle, inner piston and interior push rod, the inner skleeve is inside to have inner piston face and preceding terminal surface, has hollow platform suddenly on the preceding terminal surface, and the syringe needle is fixed at hollow bench suddenly, the outer sleeve has an inner chamber, has the median septum in the middle of the inner chamber, and the median septum is separated the inner chamber for two sections piston chambeies and negative pressure cavities, the outer piston includes annular piston, outer push rod and falcate board, inner piston and the cooperation of inner piston face, threaded surface and screw hole cooperation, the syringe needle is dodged the hole through the syringe needle and is exposed, the outer face of cylinder and the cooperation of the piston intracavity face of cylinder of annular piston, the inner cylinder face of annular piston and the cooperation of the outer face of cylinder of inner skleeve. The utility model discloses can regulate and control the inserting needle degree of depth, can prevent to squeeze into the blood vessel, medical malpractice is effectively avoided to convenience safe in utilization.
Description
Technical field
This utility model belongs to medical device technical field, relates to a kind of syringe, is specifically related to a kind of vacuum injector of controllable depth of needle.
Background technology
Some medical scheme needs at skin shallow injection injection.Such as need at skin shallow injection hyaluronic acid when improving looks; Treat pigment loss disease for another example, such as, need carry out injection at skin shallow-layer during vitiligo.Although there are the electromedical equipments such as water laser accunputure can carry out multidigit point subcutaneous injection simultaneously in the market, but among a small circle, low dose of, require that flexibility ratio is high, accurately can control the shallow layer skin hemostasis of injection depth and still there is no effective equipment, if it is improper that injection equipment is selected, worse consequence may be caused.Such as when doing the operation of face rejuvenation forehead wrinkle removing stricture of vagina, because facial vessels is abundanter, arteriovenous is often interlaced, if injection depth controls bad, careless slightlyly just likely liquid is squeezed in blood vessel, for the forehead district hyaluronic acid reduce wrinkle of the nasion, glabella, squeeze into the thromboembolism that blood vessel may cause ophthalmic artery by mistake, cause people blind, cause the great malpractice of patient's deformity, the medical device that effectively can control depth of needle is urgently released.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, provides a kind of vacuum injector of controllable depth of needle.
This utility model is achieved through the following technical solutions:
A vacuum injector for controllable depth of needle, comprises inner carrier assembly, inner sleeve, outer sleeve, outer piston and syringe needle, inner carrier assembly comprises interconnective inner handle, inner carrier and inner push-rod, and inner push-rod, in centre, connects inner handle and inner carrier, there are inner carrier face and front end face in inner sleeve inside, front end face has hollow convex, and syringe needle is fixed on hollow convex, and the external cylindrical surface of inner sleeve has thread surface, outer sleeve has inner chamber, and have median septum in the middle of inner chamber, median septum is divided into plunger shaft and negative pressure cavity two sections inner chamber, and median septum has screwed hole and passage, negative pressure cavity one end is median septum, and the other end is intrados, has syringe needle to dodge hole in the middle of intrados, outer piston comprises annular piston, outer push rod and falcate plate, outer push rod connecting ring shape piston and falcate plate, and annular piston has external cylindrical surface and inner cylinder face, inner carrier tightly coordinates with inner carrier face, composition moving sets, then, when promoting inner handle, inner carrier, along with movement, can be pushed out the medicinal liquid of inner sleeve inner chamber by hollow convex and syringe needle, thread surface and screwed hole form threaded engagement, and syringe needle is dodged hole by syringe needle and exposed, and the distance exposed depends on the position that thread surface and screwed hole screw, the external cylindrical surface of annular piston tightly coordinates composition moving sets with plunger shaft inner cylinder face, the inner cylinder face of annular piston tightly coordinates composition moving sets with the external cylindrical surface of inner sleeve, when hand-held falcate plate is pulled outwardly outer piston, region between annular piston and median septum produces negative pressure, because this region is communicated with negative pressure cavity, also negative pressure is produced in negative pressure cavity, intrados is attached in application on human skin, negative pressure is dodged hole by syringe needle and is delivered to region between intrados and application on human skin, then the skin of people swells to intrados under suction function, until run into syringe needle, the skin of punctures people enters skin shallow-layer.
Above-described tight cooperation refers to air tight, without leakage being sealed and matched.
In use, first the entirety of inner carrier assembly and inner sleeve composition is screwed off from outer sleeve, the inside sucks medicinal liquid, and then screw in screwed hole by thread surface, then syringe needle enters syringe needle and dodges hole, thread surface screws in the suitable size of screwed hole, makes syringe needle expose syringe needle and dodges the suitable size in hole; Promote falcate plate, make annular piston move to the position of close median septum; Appropriate aseptic lubrication glycerol is smeared needing the application on human skin position of injection; That one end of intrados is made to be attached in application on human skin; Pull falcate plate, then the region between intrados and application on human skin produces negative pressure, and the skin of people is to intrados protuberance under suction function, until run into syringe needle, the skin of punctures people enters skin shallow-layer; Promote inner handle, then the medicinal liquid of inner sleeve intracavity enters the tissue below the skin of people by syringe needle, reaches the object in skin shallow injection.
The beneficial effects of the utility model: controllable depth of needle, can prevent from squeezing into blood vessel, safe and convenient to use, effectively avoid malpractice.
Accompanying drawing explanation
Fig. 1 is the three dimensional structure partial schematic sectional view of this utility model embodiment;
Fig. 2 is the three dimensional structure schematic diagram of this utility model embodiment;
Fig. 3 is the full sectional view of outer sleeve 3;
Fig. 4 is the three dimensional structure schematic diagram of outer piston 4;
Shown in figure: 1. inner carrier assembly; 11. inner handles; 12. inner carriers; 13. inner push-rods; 2. inner sleeve; 21. inner carrier faces; 22. thread surface; 23. front end faces; 24. hollow convexes; 3. outer sleeve; 31. plunger shaft; 32. median septums; 33. screwed holes; 34. passages; 35. negative pressure cavities; 36. intrados; Hole dodged by 37. syringe needles; 38. outer push rods dodge hole; Hole dodged by 39. inner sleeves; 4. outer piston; 41. annular pistons; 42. external cylindrical surfaces; 43. inner cylinder faces; 44. outer push rods; 45. falcate plates; 5. syringe needle.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further illustrated:
Embodiment: see Fig. 1 to Fig. 4.
A vacuum injector for controllable depth of needle, comprises inner carrier assembly 1, inner sleeve 2, outer sleeve 3, outer piston 4 and syringe needle 5, inner carrier assembly 1 comprises interconnective inner handle 11, inner carrier 12 and inner push-rod 13, and inner push-rod 13, in centre, connects inner handle 11 and inner carrier 12, there are inner carrier face 21 and front end face 23 in inner sleeve 2 inside, front end face 23 has hollow convex 24, and syringe needle 5 is fixed on hollow convex 24, the external cylindrical surface of inner sleeve 2 has thread surface 22, outer sleeve 3 has inner chamber, and have median septum 32 in the middle of inner chamber, median septum 32 is divided into plunger shaft 31 and negative pressure cavity 35 inner chamber, median septum 32 there are screwed hole 33 and passage 34, negative pressure cavity 35 one end is median septum 32, and the other end is intrados 36, has syringe needle to dodge hole 37 in the middle of intrados 36, outer piston 4 comprises annular piston 41, outer push rod 44 and falcate plate 45, and outer push rod 44 connects annular piston 41 and falcate plate 45, and annular piston 41 has external cylindrical surface 42 and inner cylinder face 43, inner carrier 12 coordinates closely with inner carrier face 21, composition moving sets, then, when promoting inner handle 11, inner carrier 12, along with movement, can be pushed out the medicinal liquid of inner sleeve 2 inner chamber by hollow convex 24 and syringe needle 5, thread surface 22 and screwed hole 33 form threaded engagement, and syringe needle 5 is dodged hole 37 by syringe needle and exposed, and the distance exposed depends on the position that thread surface 22 and screwed hole 33 screw, the external cylindrical surface 42 of annular piston 41 tightly coordinates with plunger shaft 31 and forms moving sets, the inner cylinder face 43 of annular piston 41 tightly coordinates composition moving sets with the external cylindrical surface of inner sleeve, when hand-held falcate plate 45 is pulled outwardly outer piston 4, region between annular piston 41 and median septum 32 produces negative pressure, because this region is communicated with negative pressure cavity 35, also negative pressure is produced in negative pressure cavity 35, intrados 36 is attached in application on human skin, negative pressure is dodged hole 37 by syringe needle and is delivered to region between intrados 36 and application on human skin, then the skin of people swells to intrados 36 under suction function, until run into syringe needle 5, the skin that syringe needle 5 punctures people enters skin shallow-layer.
Above-described tight cooperation refers to air tight, without leakage being sealed and matched.
In use, first the entirety that inner carrier assembly 1 and inner sleeve 2 form is screwed off from outer sleeve 3, the inside sucks medicinal liquid, and then screw in screwed hole 33 by thread surface 22, then syringe needle 5 enters syringe needle and dodges hole 37, thread surface 22 screws in the suitable size of screwed hole 33, makes syringe needle 5 expose syringe needle and dodges the suitable size in hole 37; Promote falcate plate 45, make annular piston 41 move to the position of close median septum 32; Appropriate aseptic lubrication glycerol is smeared needing the application on human skin position of injection; The outer contour of intrados 36 is made to be attached in application on human skin; Pull falcate plate 45, then the region between intrados 36 and application on human skin produces negative pressure, and the skin of people swells to intrados 36 under suction function, until run into syringe needle 5, the skin that syringe needle 5 punctures people enters skin shallow-layer; Promote inner handle 11, then the medicinal liquid of inner sleeve 2 intracavity enters the tissue below the skin of people by syringe needle 5, reaches the object in skin shallow injection.
The beneficial effect of the present embodiment: controllable depth of needle, can prevent from squeezing into blood vessel, safe and convenient to use, effectively avoids malpractice.
Claims (1)
1. a vacuum injector for controllable depth of needle, is characterized in that, comprises inner carrier assembly, inner sleeve, outer sleeve, outer piston and syringe needle; Inner carrier assembly comprises interconnective inner handle, inner carrier and inner push-rod, and inner push-rod, in centre, connects inner handle and inner carrier; There are inner carrier face and front end face in inner sleeve inside, front end face has hollow convex, and syringe needle is fixed on hollow convex, and the external cylindrical surface of inner sleeve has thread surface; Outer sleeve has inner chamber, and have median septum in the middle of inner chamber, median septum is divided into plunger shaft and negative pressure cavity two sections inner chamber, and median septum has screwed hole and passage, negative pressure cavity one end is median septum, and the other end is intrados, has syringe needle to dodge hole in the middle of intrados; Outer piston comprises annular piston, outer push rod and falcate plate, outer push rod connecting ring shape piston and falcate plate, and annular piston has external cylindrical surface and inner cylinder face; Inner carrier tightly coordinates composition moving sets with inner carrier face; Thread surface and screwed hole form threaded engagement, and syringe needle is dodged hole by syringe needle and exposed; The external cylindrical surface of annular piston tightly coordinates composition moving sets with plunger shaft inner cylinder face, and the inner cylinder face of annular piston tightly coordinates composition moving sets with the external cylindrical surface of inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439031.7U CN204840519U (en) | 2015-06-23 | 2015-06-23 | Can regulate and control negative pressure syringe of inserting needle degree of depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439031.7U CN204840519U (en) | 2015-06-23 | 2015-06-23 | Can regulate and control negative pressure syringe of inserting needle degree of depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204840519U true CN204840519U (en) | 2015-12-09 |
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ID=54731120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520439031.7U Expired - Fee Related CN204840519U (en) | 2015-06-23 | 2015-06-23 | Can regulate and control negative pressure syringe of inserting needle degree of depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204840519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922769A (en) * | 2015-06-23 | 2015-09-23 | 中国人民解放军第四军医大学 | Negative-pressure injector with needle inserting depth controllable |
| CN108814686A (en) * | 2018-04-20 | 2018-11-16 | 朱世新 | A kind of cardiovascular interventional therapy device |
-
2015
- 2015-06-23 CN CN201520439031.7U patent/CN204840519U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922769A (en) * | 2015-06-23 | 2015-09-23 | 中国人民解放军第四军医大学 | Negative-pressure injector with needle inserting depth controllable |
| CN104922769B (en) * | 2015-06-23 | 2017-09-15 | 中国人民解放军第四军医大学 | The vacuum injector of controllable depth of needle |
| CN108814686A (en) * | 2018-04-20 | 2018-11-16 | 朱世新 | A kind of cardiovascular interventional therapy device |
| CN108814686B (en) * | 2018-04-20 | 2020-10-30 | 山东第一医科大学附属省立医院(山东省立医院) | Cardiovascular interventional therapy device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160623 |