Disposable sterile syringe with sheath included

A sheath tube and syringe technology, applied in the field of medical equipment, can solve the problems of needle pollution, accidental needle stick injury, contaminated needles, etc., achieve good biodegradability, avoid cross-infection, and good tensile properties

Inactive Publication Date: 2017-10-20
解丹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem that exists at present is: in the clinical nursing work process, the syringe is often placed in the treatment tray temporarily after the medicinal liquid is sucked, and the injection can only be performed after the patient is helped to take the correct body position and the skin is disinfected. Nurses are likely to contaminate or be stabbed by needles during the process of recapping. If the needle cap is not recapped, needle exposure cannot be avoided. Long-term exposure of needles will lead to two consequences. One is that the originally sterile needle is contaminated , the second is an accidental needle stick injury
In order to avoid the contamination and needle stick injury caused by returning the needle cap, the current clinical nursing practice has prohibited returning the needle cap at this time, which cannot solve the problem of prolonged exposure of the needle before injection
In addition, the performance stability of the retraction technology of the syringe is poor during use, and problems such as premature excitation of the needle, incomplete excitation, or liquid leakage often occur during use.

Method used

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  • Disposable sterile syringe with sheath included
  • Disposable sterile syringe with sheath included

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A disposable sterile syringe comprising a sheath tube, which includes a handle 1, a push rod 2, a syringe 3, a protective sheath 4, a needle 5 and a trocar cap 6; the needle 5 is integrated with the syringe 3 and cannot be separated, and the This can avoid the needle stick injury caused in the process of separating the needle; the outer sleeve 4 is located outside the syringe 3; when the liquid medicine is sucked, there is no need to return the needle cap to protect the needle, but push the outer sleeve toward the needle , push it until it can cover the entire needle, and then inject after the nurse prepares the patient's position and skin disinfection. At this time, you only need to push the outer cannula in the opposite direction until the needle is completely exposed, which is conducive to protection. The needle is in a sterile state before injection, which is also beneficial to avoid needle stick injury caused by the nurse's direct contact with the needle during the ...

Embodiment 2

[0025] An outer sleeve, which is prepared from the following raw materials in parts by weight: 20 parts of polybutylene succinate, 15 parts of polyvinyl alcohol, 8 parts of hydroxymethyl cellulose, 7 parts of polyglycolic acid, chitosan 6 parts, 4 parts of polylactic acid, 3 parts of barium stearate, 2 parts of mica powder, 2 parts of corn starch, 1 part of sodium succinate and 1 part of silica gel, the pore volume of the silica gel is 0.60-0.85ml / g, the average The pore size is 4.5-7.0nm, and the specific surface area is 450-650m 2 / g; the particle diameters of the hydroxymethylcellulose, chitosan, barium stearate, mica powder, cornstarch and sodium succinate are all controlled at 100 mesh.

[0026] The preparation method of the above-mentioned outer casing comprises the following steps: taking each raw material according to the weight part for later use; first adding each raw material into the mixer in turn, stirring centrifugally at 1000 rpm for 3 minutes, and then standing...

Embodiment 3

[0028] An outer sleeve, which is prepared from the following raw materials in parts by weight: 22 parts of polybutylene succinate, 16 parts of polyvinyl alcohol, 10 parts of hydroxymethyl cellulose, 8 parts of polyglycolic acid, chitosan 7 parts, 5 parts of polylactic acid, 4 parts of barium stearate, 3 parts of mica powder, 3 parts of corn starch, 2 parts of sodium succinate and 2 parts of silica gel, the pore volume of the silica gel is 0.60-0.85ml / g, the average The pore size is 4.5-7.0nm, and the specific surface area is 450-650m 2 / g; the particle diameters of the hydroxymethylcellulose, chitosan, barium stearate, mica powder, cornstarch and sodium succinate are all controlled at 150 mesh.

[0029] The preparation method of the above-mentioned outer casing comprises the following steps: taking each raw material according to the weight part for later use; first adding each raw material into the mixer in turn, stirring centrifugally at 1000 rpm for 3 minutes, and then stand...

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Abstract

The invention belongs to the field of medical equipment and discloses a disposable sterile syringe comprising a protection sleeve tube. The disposable sterile syringe comprises a handle, a push rod, a syringe, the protection sleeve, a needle and a sleeve needle cap. The disposable sterile syringe is characterized in that the needle and the syringe are integrated and cannot be separated; the outer sleeve tube is located outside the syringe; the outer sleeve tube is pushed towards the direction of the needle so as to cover the integral needle when the suction of the medicine liquid is achieved. According to the disposable sterile syringe comprising the protection sleeve tube, the structure is simple, the use is convenient, the needle puncture caused by needle cap back sleeving can be effectively avoided, the aseptic condition of the needle can be convenient to maintain before injection, the needle puncture caused by the needle separation can be avoided after the injection, and the certain application value is achieved.

Description

technical field [0001] The invention belongs to the field of medical equipment and relates to a disposable aseptic syringe including a sheath tube; the invention also relates to a sheath tube and a preparation method thereof. Background technique [0002] Needlestick injury is one of the occupational diseases in medical and nursing work, which can cause a variety of blood-borne diseases. Nurses are the group with the highest incidence of needlestick injuries in hospitals. Therefore, how to avoid frequent needlestick injuries has important clinical significance. [0003] The main causes of needlestick injuries are: After the nurse finishes a certain operation, she fails to return the syringe needle to the needle cap, and puts it aside at will, resulting in stabbing herself or others during the next operation; When returning the needle cap, it is more casual, not enough attention is paid, and the finger is stabbed; The used syringe needle was not immediately disposed of i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/178A61M5/32B29C47/00C08L67/02C08L29/04C08L1/28C08L67/04C08L5/08C08L3/02C08K13/04C08K7/26C08K5/098C08K3/34
CPCA61M5/178A61M5/321
Inventor 解丹
Owner 解丹
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