CN205286368U

CN205286368U - Safe blood taking needle

Info

Publication number: CN205286368U
Application number: CN201520962128.6U
Authority: CN
Inventors: 李燕玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-26
Filing date: 2015-11-26
Publication date: 2016-06-08
Anticipated expiration: 2025-11-26

Abstract

The utility model discloses a safe blood taking needle relates to the medical instrument field, include: a syringe needle is connected to a needle tubing, needle tubing top, and the needle tubing afterbody outside is equipped with needle tubing spiral connector, the needle tubing outside is located to a protective sheath, protective sheath, is equipped with the protective sheath space between protective sheath top inner wall and needle tubing top outer wall, and protective sheath length is greater than syringe needle length, and protective sheath afterbody inboard is equipped with protective sheath spiral connector, and protective sheath spiral connector and needle tubing spiral connector agree with mutually, during a compression spring, compression spring located the protective sheath space, length was greater than syringe needle length under the compression spring natural state. After the blood sampling, singlehanded rotatory protective sheath tail end a week can make the protective sheath spiral connector and the separation of needle tubing spiral connector of closure, with the help of compression spring's elasticity, makes the protective sheath move voluntarily to the syringe needle outside, conceals the syringe needle in the protective sheath totally. The utility model discloses convenient operation, the pinprick that can effectively avoid taking a blood sample hinder the accident, greatly reduced the medical risk of blood taking needle.

Description

A kind of safe blood-taking needle

Technical field

This utility model relates to medical instruments field, is specifically related to a kind of safe blood-taking needle.

Background technology

Blood collection needles human injury's accident that current countries in the world hospital causes because of syringe needle fracture or medical personnel's misoperation occurs millions of person-times every year. The statistical data that American Medical Association announces shows, only the U.S. about occurs 1,000,000 person-times of medical personnel surprisingly to be stabbed accident by blood taking needle every year, and at least a part of which has hepatitis B virus, hepatitis C virus and the AIDS viral infection that over thousands of people can be adhered on syringe needle. The emergency treatment expense that the medical personnel every time stabbed because of blood collection needles fracture and patient produce is 3000 dollars per capita.

At present, conventional disposable blood taking needle is before use, it is necessary to needle guard on pinhead sleeve to protect syringe needle, for instance prevent syringe needle to be bent or collision etc. After blood sampling completes to extract in person of blood collecting's body, when carrying out waste disposal, the finger of nurse and waste treatment personnel is also very easy to be stabbed by blood taking needle, and because needle stick injury causes infection or the propagation of blood borne disease, consequence is extremely serious.

For this defect, some blood taking needles set up defences outside syringe needle acupuncture protection set and handle, after having taken a blood sample, protection set is pulled until entangling syringe needle completely by handle. This measure greatly reduces acupuncture risk, but owing to action of pulling back needs both hands to coordinate, and the catching groove between protection set and needle tubing such as easily opens in advance at the various reasons when carrying out aculeus blood-taking because of operational error, operation inconvenient in clinical practice.

Utility model content

For the defect existed in prior art, the purpose of this utility model is in that to provide a kind of safe blood-taking needle, easy to operate and can be prevented effectively from blood taking needle and stab accident.

For reaching object above, this utility model adopts the technical scheme that: a kind of safe blood-taking needle, including: a needle tubing, described needle tubing top connects a syringe needle, and described needle tubing lateral tail is provided with needle tubing spiral interface; One protection set, described protection set is sheathed on outside described needle tubing, protection set space it is provided with between described protection set top inner wall and described needle tubing top exterior walls, described guarantor's length is more than described needle length, described protection set tail inner side is provided with protection set spiral interface, and described protection set spiral interface agrees with mutually with described needle tubing spiral interface;One compression spring, described compression spring is located in described protection set space, and under described compression spring naturalness, length is more than described needle length.

On the basis of technique scheme, described needle tubing top is provided with bulge loop.

On the basis of technique scheme, described bulge loop diameter is equal to described protection set internal diameter, and described needle tubing spiral interface place diameter is less than described bulge loop diameter, more than described needle tubing external diameter.

On the basis of technique scheme, outside described protection set tail end, it is provided with protection set anti-slip veins.

On the basis of technique scheme, outside described needle tubing tail end, it is provided with needle tubing anti-slip veins.

On the basis of technique scheme, described protection set outside is provided with puncture handle.

On the basis of technique scheme, described syringe needle is externally provided with needle guard.

On the basis of technique scheme, described needle tubing tail end is provided with conveying interface tube.

Compared with prior art, the utility model has the advantage of:

This utility model is by needle tubing peripheral hardware protection set; protection set and needle tubing head room clearance set compression spring; after blood sampling terminates; protection set tail end is rotated gently one week by one hand; sealed protection set spiral interface can be made to separate with needle tubing spiral interface; by the elastic force of compression spring, protection set is made automatically to move to outside syringe needle, by completely hidden for syringe needle in protection set. This utility model is easy to operate, it is possible to is prevented effectively from blood taking needle and stabs accident, greatly reduces the medical-risk of blood taking needle.

Accompanying drawing explanation

Fig. 1 is the generalized section before this utility model embodiment uses;

Fig. 2 is the generalized section after this utility model embodiment uses.

In figure: 1-needle guard, 2-syringe needle, 3-compresses spring, 4-needle tubing, and 5-protects set; 6-protection set space, 41-bulge loop, 42-needle tubing cavity, 43-needle tubing spiral interface, 44-needle tubing anti-slip veins; 45-carries interface tube, and 51-punctures handle, 52-protection set anti-slip veins, 53-protection set spiral interface.

Detailed description of the invention

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.

Shown in Figure 1, this utility model embodiment provides a kind of safe blood-taking needle, it is characterised in that including: a needle tubing 4, and needle tubing 4 top connects a syringe needle 2, and needle tubing 4 lateral tail is provided with needle tubing spiral interface 43; One protection set 5, it is outside that protection set 5 is sheathed on needle tubing 4, protection set space 6 it is provided with between protection set 5 top inner wall and needle tubing 4 top exterior walls, protection set 5 length are more than syringe needle 2 length, protection set 5 tail inner side are provided with protection set spiral interface 53, and protection set spiral interface 53 agrees with needle tubing spiral interface 43 phase; One compression spring 3, compression spring 3 is located in protection set space 6, and under compression spring 3 naturalness, length is more than syringe needle 2 length. Therefore, under unused state, protection set 5 and needle tubing 4 tail end are by protecting set spiral interface 53 to be closely locked in together with needle tubing spiral interface 43.

Needle tubing 4 top is provided with bulge loop 41. Bulge loop 41 diameter is equal to protection set 5 internal diameters, and needle tubing spiral interface 43 place diameter is less than described bulge loop 41 diameter, more than described needle tubing 4 external diameter. Therefore, when protection set spiral interface 53 and needle tubing spiral interface 43 Unscrew, by the elastic force of compression spring 3, protection set 5 can along the smooth and easy slip of needle tubing 4. Meanwhile, when protection set spiral interface 53 encounters the bulge loop 41 at needle tubing 4 top, protection set 5 continuation can be stoped to slide, effectively prevent protection set 5 slippage syringe needle 2.

Protection set anti-slip veins 52 it is provided with outside protection set 5 tail ends. It is provided with needle tubing anti-slip veins 44, it is simple to two spiral interfaces agreed with of Unscrew outside needle tubing 4 tail end. Puncture handle 51 it is provided with, it is simple to use when blood sampling punctures outside protection set 5.

Needle tubing 4 tail end sets conveying interface tube 45, the conveying pipe outside connecting. Being needle tubing cavity 42 in needle tubing 4, syringe needle 2 tail end connects needle tubing cavity 42. Under unused state, outside syringe needle 2, it is cased with needle guard 1. During blood sampling, taking off the needle guard 1 outside syringe needle 2, use puncture handle 51 to carry out puncture blood collecting, blood flows in needle tubing cavity 42 by syringe needle 2, by carrying interface tube 45 to flow in the conveying pipe of outside. After blood sampling terminates, rotated protection set 5 tail end gently by one hand one week, sealed protection set spiral interface 53 and needle tubing spiral interface 43 can be made to separate; elastic force by compression spring 3; promote protection set 5 to move to syringe needle 2, make syringe needle 2 completely hidden in protection set 5, as shown in Figure 2.

This utility model is not only limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but in its shape or structure, do any change; every have same or like with this utility model like technical scheme, all within its protection domain.

Claims

1. a safe blood-taking needle, it is characterised in that including:

One needle tubing (4), described needle tubing (4) top connects a syringe needle (2), and described needle tubing (4) lateral tail is provided with needle tubing spiral interface (43);

One protection set (5), it is outside that described protection set (5) is sheathed on described needle tubing (4), it is provided with protection set space (6) between described protection set (5) top inner wall and needle tubing (4) top exterior walls, described protection set (5) length is more than described syringe needle (2) length, described protection set (5) tail inner side is provided with protection set spiral interface (53), and described protection set spiral interface (53) is agreed with mutually with described needle tubing spiral interface (43);

One compression spring (3), described compression spring (3) is located in described protection set space (6), and under described compression spring (3) naturalness, length is more than described syringe needle (2) length.

2. a kind of safe blood-taking needle as described in the appended claim 1, it is characterised in that: described needle tubing (4) top is provided with bulge loop (41).

3. a kind of safe blood-taking needle as stated in claim 2; it is characterized in that: described bulge loop (41) diameter is equal to described protection set (5) internal diameter; described needle tubing spiral interface (43) place diameter is less than described bulge loop (41) diameter, more than described needle tubing (4) external diameter.

4. a kind of safe blood-taking needle as described in the appended claim 1, it is characterised in that: it is provided with protection set anti-slip veins (52) outside described protection set (5) tail end.

5. a kind of safe blood-taking needle as described in the appended claim 1, it is characterised in that: it is provided with needle tubing anti-slip veins (44) outside described needle tubing (4) tail end.

6. a kind of safe blood-taking needle as described in the appended claim 1, it is characterised in that: described protection set (5) outside is provided with puncture handle (51).

7. a kind of safe blood-taking needle as described in the appended claim 1, it is characterised in that: described syringe needle (2) is externally provided with needle guard (1).

8. a kind of safe blood-taking needle as described in the appended claim 1, it is characterised in that: described needle tubing (4) tail end is provided with conveying interface tube (45).