Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self damaging safe injector with blocking mechanism

A syringe and safety technology, which is applied in the field of self-destructing syringes, can solve the problems of difficult to achieve clogging, low production yield, and difficult process, and achieve the effects of reducing residual amount, reasonable structure and simple process

Inactive Publication Date: 2004-11-10
陈嘉农
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of making the plug and piston of the above-mentioned syringe integrated is relatively difficult, the production yield is low, and the cost is high. When in use, due to the good elasticity of the rubber, the cut at the rear end of the plug is not easy to break, and it is difficult to achieve the plugging effect. ; If it is bonded, it is difficult to accurately locate the plug at the center of the piston, because the bonding area is small, so it is easy to fall off when not in use, and cannot be used normally

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self damaging safe injector with blocking mechanism
  • Self damaging safe injector with blocking mechanism
  • Self damaging safe injector with blocking mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] See Fig. 1 to Fig. 6, the material used in the syringe of this embodiment complies with the national standard. The applicable specification of the syringe of this embodiment is 10 milliliters and below 10 milliliters. The syringe of this embodiment has a cone head 1, a core rod 2, an outer jacket 3, and a piston 5. The cone head 1 has a cone head hole 1-1, and the cone head 1 and the outer jacket 3 are one piece. 1. An integral part of the neck 2-2 and the shaft 2-3, the piston 5 is sleeved on the head 2-1 of the core rod 2; see Fig. The locking card 4 is provided with an airtight positioning part 4-1, and the piston 5 is provided with a joint positioning part 5-1, and the airtight positioning part 4-1 of the blocking lock card 4 and the joint positioning part 5-1 of the piston 5 are inserted into each other to form an airtight combination Positioning, the airtight positioning part 4-1 of the blocking lock card 4 is a convex column, and the joint positioning part 5-1 o...

Embodiment 2

[0061] See Fig. 7 to Fig. 10, the applicable specification of the syringe of this embodiment is 5 milliliters and more than 5 milliliters. The overcoat 3 of the syringe of this embodiment is a stepped overcoat with a small top and a large bottom, and the stepped section at the upper end of the inside of the stepped overcoat 3 is used as a blocking cavity 6; the inner diameter of the blocking cavity 6 of the syringe of this embodiment is smaller than that of the overcoat 3 The inner diameter of the cavity is 8.5 mm; the two sides of the inner wall of the blocking cavity 6 are provided with an axial liquid guide groove 6-1; the blocking ring 4-2 of the blocking card 4 can cooperate with the blocking cavity 6, and the blocking card The outer diameter of the joint between the ring 4-2 and the blocking chamber 6 is 0.45 mm larger than the inner diameter of the blocking chamber 6; see FIG. 8, the blocking card 4 does not have an axial liquid guide groove 4-3. All the other are ident...

Embodiment 3

[0063] See Fig. 11 to Fig. 13, the specification that the syringe of this embodiment is applicable is 10 milliliters and below 10 milliliters. The needle tube 7-1 of the syringe of this embodiment is fixed on the cone head 1 by bonding the inner wall of the connecting hole 1-3 provided on the cone head 1 through the connecting part 7-2; the inner wall of the cone head hole 1-1 has no Anti-poking part 1-2; see Fig. 11, the inner wall of the upper section of the blocking chamber 6 has a taper that is small at the top and large at the bottom, and the upper section of the blocking card 4 has a corresponding taper that is small at the top and large at the bottom. The inner wall of the inner wall is provided with the blocking boss 6-2, and the inner diameter of the blocking boss 6-2 is less than the inner diameter of the junction of the upper section of the blocking cavity 6 and the blocking boss 6-2. The outer diameter of the locking snap ring 4-2 is greater than the inner diameter...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The inside diameter ofaaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Login to View More

Abstract

The invention relates to a self-destructing syringe comprising a tapered head, a core bar, a jacket and a piston, wherein the tapered head is provided with a tapered head hole, the tapered head is integrated with the jacket, the core bar is an integrated member of a header, a neck and a rod body, the piston is sleeved on the top end of the core bar. The syringe also includes a clogging fastener, which is provided with a sealing and positioning portion, the piston is provided with a coupling and positioning portion, wherein the sealing and positioning portion of the clogging fastener and the coupling and positioning portion of the piston socket each other for closed coupling and positioning. The invention realizes reasonable structure, convenient manufacture, simple process for manufacturing, and dependable performance, wherein a clogged self-destructing safety syringe unable to be reused is provided.

Description

technical field [0001] The invention relates to a self-destruct syringe, which belongs to the field of medical instruments. Background technique [0002] Chinese patent No. is 00219356.6, and the utility model patent description entitled "Blocking Type Disposable Syringe" discloses a syringe. The syringe includes a jacket, a core rod, and a piston; the jacket has a cone head, the cone head is provided with a cone head hole, and an annular boss is arranged in the cone head hole; the front end of the piston is provided with a plug, and the rear end of the plug has a cutout. There is a core bone in the center; the piston is connected with the plug, which can be made in one piece or bonded; the plug has a taper, and the front end is a small head; the inner wall of the annular boss is provided with at least one axial guide groove; A limit piece is provided at the rear of the rod. The process of making the plug and piston of the above-mentioned syringe integrated is relatively d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61M5/178A61M5/31A61M5/50
Inventor 陈嘉农陈秀恋
Owner 陈嘉农
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com