CN2780222Y

CN2780222Y - Safety needle

Info

Publication number: CN2780222Y
Application number: CN 200520057417
Authority: CN
Inventors: 黄永强
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-16
Filing date: 2005-04-16
Publication date: 2006-05-17
Anticipated expiration: 2015-04-16

Abstract

The utility model discloses a disposable safe needle. The utility model is mainly composed of a needle, a needle holder, an upper and a lower press covers and elastic pieces, wherein the needle stand is connected with the needle; the upper and the lower press covers have the function of bearing the needle; the elastic pieces are installed in the passage space which is formed by that the upper and the lower press covers are rabbeted. The needle holder is toggled to make a needle head pulled back to the passage space between the upper and the lower press covers after centesis, blood sampling or transfusion to human bodies is finished; the elastic pieces in the passage space press a needle bar, then, angle heads at the front ends of the elastic pieces are embedded in a concave position on the lower press cover with the aid of the function of the self elastic force of the elastic pieces at the moment when the needle head is just pulled back to the passage space, so an outlet of the passage space is sealed and the needle head can be locked. Therefore, when the needle head is retracted into the passage space, the needle head can not be pushed out of the upper and the lower press covers again and the occurrence of the states of possible reuse and injury is avoided. The utility model has the advantages of simple structure, convenient use and high safety; the utility model can be used for medical care, etc.

Description

Safty pin

One, technical field

This utility model relates to a kind of blood sampling transfusion device that belongs to medical aspect, particularly disposable safty pin.

Two, background technology

At present, owing to common disposable safe pin uses healthy and convenient being widely applied.Yet, existing common disposable safe pin still has function of use after once using, this just probably can be used to be repeatedly used by some lawless person or people mercenary, can cause viral thus inevitably and the pathogenic cross infection, thereby people's life security is constituted the healthy of potential threat and harm people.

Three, summary of the invention

The purpose of this utility model is to provide a kind of through comparatively effectively improving, has disposable safty pin truly, the drawback of the factor of the harm people's that lie dormant healthy and life security to overcome existing after once using, still can the re-using of existing common disposable safe pin.

The purpose of this utility model is achieved in that it mainly by pin, the needle stand that is connected with pin, pin is played the last lower cover of support effect, and by on lower cover interlocking and the shell fragment installed in the channel space that forms constitutes.After human body being finished puncture, blood sampling or transfusion, stirring needle stand is returned in the channel space between upper press cover and the lower cover syringe needle, because the shell fragment in this channel space has been pushed down shank, at this moment, the front end elbow of shell fragment utilizes syringe needle just to draw back moment to this channel space, take advantage of a situation by the elastic force effect of shell fragment itself and to imbed in the recess above the lower cover, thus the outlet of having sealed this channel space, so syringe needle can be pinned.Like this, when just making syringe needle be withdrawn in the described channel space, it is outer and avoided the situation generation that may be used again and hurt sb.'s feelings to be pushed out to lower cover again.

This utility model can guarantee disposable use, has avoided the non-artificial viral and pathogenic cross infection that causes.It is simple in structure, and is easy to use, safe and reliable, and production cost is low, can be widely used in aspects such as medical treatment.

Four, description of drawings

Fig. 1, be the structural representation before this utility model uses;

Fig. 2, be the structural representation during this utility model uses;

Fig. 3, be the structural representation after this utility model uses.

Five, the specific embodiment

Below in conjunction with drawings and Examples structure of the present utility model is further described:

In Fig. 1, this utility model safty pin comprises pin 4, be connected with the end of pin 4 and make it the needle stand 5 of push-and-pull, the both sides of needle stand 5 are drawn respectively and are used to guide needle stand 5 so that before driving pin 4 works simultaneously, the pull rope 6 that pass the back, pull rope 6 is connected in puncture, in blood sampling or when transfusion, are for fixing to the fin of people's human body, fin is connected with lower cover 8, the top of lower cover 8 rabbeted by upper press cover 1, on,

lower cover

1,8 play a part support pin 4, after upper press cover 1 is rabbeted with lower cover 8, form a channel space K between them, described pin 4 passes this channel space K, for the syringe needle that can pin pin 4 is finished puncture, blood sampling or transfusion the time make it be withdrawn into channel space K between upper press cover 1 and the lower cover 8 and no longer are pushed out to when interior,

lower cover

1,8 cause and may be used again and hurt sb.'s feelings outward, spy bottom surface of upper press cover 1 in described channel space K is equipped with the shell fragment of being made by elastomeric material 2, the front end of shell fragment 2 is an elbow, this elbow is just facing to the recess G above the lower cover 8, described shell fragment 2 is pushed down the shank of pin 4, and the rear end of described upper press cover 1 is connected with latch hook 3; In order to guarantee this product before not using, do not make pin 4 be subjected to polluting and viral, pathogenic cross infection, and be unlikely and hurt sb.'s feelings, the spy entangles pin 4 with sheath 7.

When needs use, then the sheath among Fig. 17 is unloaded and discard.At this moment, Fig. 2 is represented is exactly structural representation during this utility model uses.Like this, just the syringe needle of pin 4 can be pricked the human body that into needs the people that punctures, take a blood sample or infuse, and be fixed in fin on people's the human body, to puncture, to take a blood sample or to infuse.

After puncture, blood sampling or transfusion finish, push latch hook 3, be returned in the channel space K between upper press cover 1 and the lower cover 8 by stirring syringe needle that needle stand 5 makes pin 4, because the shell fragment 2 in this channel space K has been pushed down the shank of pin 4, at this moment, the front end elbow of shell fragment 2 utilizes the syringe needle of pin 4 just to draw back to the moment of described channel space K, take advantage of a situation by the elastic force effects of shell fragment 2 itself and to imbed among the recess G above the lower cover 8, thereby sealed the outlet of described channel space K, so the syringe needle of pin 4 can be pinned.Like this, when being withdrawn in the described channel space K with regard to the syringe needle that makes pin 4, it is outer and situation that avoided being used again and hurting sb.'s feelings takes place to be pushed out to upper and

lower gland

1,8 again, as shown in Figure 3.

Above-described only is preferential embodiment of the present utility model.Should be pointed out that to those skilled in the art under the prerequisite that does not break away from this utility model principle, can also make some modification and improvement, this also is considered as belonging to protection domain of the present utility model.

Claims

1, a kind of safty pin, comprise pin (4), it is characterized in that: be connected with needle stand (5) with the end of pin (4), the both sides of needle stand (5) are drawn pull rope (6) respectively, pull rope (6) is connected in fin, fin is connected with lower cover (8), the top of lower cover (8) rabbeted by upper press cover (1), after upper press cover (1) is rabbeted with lower cover (8), form a channel space (K) between them, described pin (4) passes this channel space (K), the bottom surface of the interior upper press cover of described channel space (K) (1) is equipped with shell fragment (2), the front end of shell fragment (2) is an elbow, and just facing to the recess (G) above the lower cover (8), the rear end of described upper press cover (1) is connected with latch hook (3) this elbow.