CN202909202U

CN202909202U - Safety remaining needle

Info

Publication number: CN202909202U
Application number: CN 201220548373
Authority: CN
Inventors: 李敦基; 许光武
Original assignee: SHANGHAI LUNCHANG ELECTRICAL AND MECHANICAL TECHNOLOGY Co Ltd
Current assignee: SHANGHAI LUNCHANG ELECTRICAL AND MECHANICAL TECHNOLOGY Co Ltd
Priority date: 2012-10-24
Filing date: 2012-10-24
Publication date: 2013-05-01
Anticipated expiration: 2022-10-24

Abstract

The utility model relates to a safety remaining needle which comprises a cannula body, an infusion soft needle, a metal needle and a sliding needle base. One end of the cannula body is provided with a limiting opening. The other end of the cannula body is provided with a connecting opening. A needle base sliding rail is arranged in an appropriate position of a tube body of the cannula body. One end of the infusion soft needle is an insertion end. The other end of the infusion soft needle is a connecting end. The metal needle is sleeved on an appropriate position on the outer portion of the insertion end of the infusion soft needle. One end of the metal needle is a needle end. The other end of the metal needle is a fixed end. One portion of the sliding needle base is exposed out of the needle base sliding rail and is clamped and connected with one end of the needle base sliding rail. The other portion of the sliding needle base is fixed with the fixed end of the metal needle and is arranged in an appropriate position inside the cannula body so that the needle end of the metal needle is exposed out of the limiting opening. The connecting end of the infusion soft needle is arranged towards the connecting opening of the cannula body.

Description

A kind of safety indwelling needle

Technical field:

A kind of safety indwelling needle, refer to especially a kind ofly soft remaining needle is arranged at metal needle inside and tube for transfusion directly is connected with soft remaining needle, do not see through the third direction infusion fluid, and metal needle can inside contract and prevent that metal needle from exposing and cause own or other people injury, can prevent the safety indwelling needle of blood-borne disease propagation.

Background technology:

Even to this day, in the medical treatment institute with venous detaining needle towards designing take safety as prerequisite, and the pain that causes during for fear of puncture injection repeatedly, at present generally all be to adopt this type of auxiliary implement of venous detaining needle, the pain that is caused when reducing multiple injection, the indwelling piping punctures in human vein during use, and sleeve pipe then is and exposes and outside adhesive tape is fixed in human arm, be socketed for syringe cylinder or transfusion bag by this sleeve pipe, transfusion is inputed in the human vein.

Present venous detaining needle mainly contains two kinds of patterns, the first venous detaining needle pattern is soft needle body for its indwelling tube, but scratch shape and be axial bending, make indwelling tube carry out bending in company with the injection site, sense of discomfort when using to reduce, and can reduce the possibility of stinging perforating veins, and not only increase safety, when moving, health also can reduce pain; The second venous detaining needle pattern is the hard needle body for its indwelling tube, system is made by metal, its benefit need not to cooperate by other utensil for can directly carrying out venipuncture, but easily cause in the use the sense of discomfort of sufferer, when health need move, the hard needle body easily pierces through vein in blood vessel, and easily causes the pain sense of discomfort.

And the general system of known soft venous detaining needle utilizes the draw point of a metal, outside sheathed one soft pin, after syringe needle inserts human vas, namely withdraw from draw point, soft pin kept somewhere in blood vessel infuse, because an end must withdraw from draw point, an end need insert human body and an end needs infusion fluid, therefore the sleeve pipe of known remaining needle group must be provided with three openings, it is different directions that draw point withdraws from infusion fluid, so production cost is high; And soft needle guard is located at the outside of this draw point, and draw point often can be worn out soft pin when assembling, makes decrease in yield; In addition, the draw point that withdraws from easily causes medical personnel injured, and easily causes the blood-borne transmission of disease.

The utility model content:

This utility model safety indwelling needle structure system comprises: a sleeve body, and an end of this sleeve body has a restricted entry, and another end has a connector, and the pipe shaft of this sleeve body suitably is provided with a needle stand slide rail in the place; The soft pin of one transfusion, an end of this soft pin of infusing is insertion end, the other end is link; One metal needle, the outside suitably place of the insertion end that this metal needle system is set in this soft pin of infusing, wherein an end of this metal needle is the pin end, the other end is stiff end; An and slip needle stand, an end that exposes this needle stand slide rail outside and be connected to this needle stand slide rail of this slip needle stand, the stiff end of another one and this metal needle fixes, and be arranged on the suitable place of this sleeve body inside, make the pin end of this metal needle be exposed to this restricted entry outside, the link of this soft pin of infusing is then towards the connector of this sleeve body.

The main technological means system of this utility model will arrange a slip needle stand on the metal needle, seeing through the needle stand slide rail can be after inserting human body, metal needle is inside contracted and can not be exposed to outside the sleeve body, need not withdraw from metal needle, reduce the probability that metal needle causes medical personnel to injure, prevent the infection of blood-borne disease, and increase the safety of using.

The less important technological means of this utility model system soft pin of should infusing is arranged at this metal needle inside, the metal needle soft acupuncture of should infusing was broken when the outside that this metal needle is sheathed on this soft pin can prevent from assembling, improve yield rate, and the draw point of the remaining needle of commonly using at present is arranged at the inside of this soft pin, and draw point is longer than soft pin, and cost of manufacture is higher, and present technique can be used general draw point, but the shorter and soft pin of draw point is longer, can reduce cost.

This utility model again technological means system extends to the link of soft pin the connector of sleeve body, can directly or indirectly be connected with tube for transfusion, does not need to arrange in addition a direction opening and is connected with tube for transfusion and can reduces cost.

Description of drawings:

Fig. 1 is this utility model schematic perspective view

Fig. 2 is this utility model perspective exploded view

Fig. 3 is this utility model the first action schematic diagram

Fig. 4 is this utility model the second action schematic diagram

Fig. 5 is this utility model the 3rd action schematic diagram

Fig. 6 is that this utility model is implemented schematic diagram

Among the figure: 1 safety indwelling needle, 11 sleeve body, 111 restricted entries, 112 connectors

113 needle stand slide rails, 1131 needle stand draw-in grooves, 1132 protruding points, 114 effort handles

Soft pin 121 insertion ends 122 links 13 metal needles of 12 transfusions

131 pin ends, 132 stiff ends, 14 slip needle stands, 141 pull handles

2 tube for transfusions 3 are adhesive plaster 15 plugs 16 connection tubes fixedly

The specific embodiment:

Below in conjunction with drawings and Examples this utility model is further described

As shown in Figure 1, it is the axonometric chart of this utility model safety indwelling needle, mainly include a sleeve body 11, the soft pin 12 of infusing, metal needle 13 and slip needle stand 14 form, it is different from prior art and is: have a needle stand slide rail 113 on the pipe shaft of this sleeve body 11, this metal needle 13 is sheathed on the outside of this soft pin 12 of infusing, be fixed with a slip needle stand 14 on this metal needle 13, and see through this needle stand slide rail 113 and can make this slip needle stand 14 in these sleeve body 11 slides within, after metal needle 13 inserts human body during use, the soft pin 12 of infusing simultaneously also enters human body, and see through slip needle stand 14 to this sleeve body 11 tail ends slip, this metal needle 13 is inside contracted to sleeve body 11, and should keep motionless by the soft pin 12 of transfusion, continue to stay in the human body, metal needle 13 then inside contracts fully in this sleeve body 11 inside and does not expose, and so through tube for transfusion 2 liquid is inputed to this soft pin 12 of infusing and inputs to human body again.

As shown in Figure 2, be the three-dimensional exploded view of this utility model safety indwelling needle, it comprises: a sleeve body 11, and an end of this sleeve body 11 has a restricted entry 111, another end has a connector 112, and the pipe shaft of this sleeve body 11 suitably is provided with a needle stand slide rail 113 in the place; The soft pin 12 of one transfusion, an end of this soft pin 12 of infusing is insertion end 121, the other end is link 122; One metal needle 13, this metal needle 13 are the insertion end 121 outside suitably places that are sheathed on this soft pin 12 of infusing, and wherein an end of this metal needle 13 is pin end 131, and the other end is stiff end 132; An and slip needle stand 14, an end that exposes these needle stand slide rail 113 outsides and be connected to this needle stand slide rail 113 of this slip needle stand 14, the stiff end 132 of another one and this metal needle 13 fixes, and be arranged at the suitable place of these sleeve body 11 inside, make the pin end 131 of this metal needle 13 be exposed to this restricted entry 111 outsides, 122 connectors 112 towards this sleeve body 11 of the link of this soft pin 12 of infusing.Wherein the stiff end 132 of this metal needle 13 has the projection of two symmetries, forms a cross-rib structure and is embedded on this slip needle stand 14, and see through adhesion glue glue and establish and fix (disclosing among the figure).

Disclose these restricted entry 111 interior plugs 15 that are provided with in addition among the figure, this metal needle 13 passes this plug 15 and is exposed to outside this restricted entry 111, and these connector 112 interior connection tubes 16 that further are provided with, these connection tube 16 1 ends are connected with the link 122 of this soft pin 12 of infusing, the other end is connected with tube for transfusion 2, making liquid see through tube for transfusion 2 inputs to this soft pin 12 of infusing with liquid and inputs to human body again, and this connection tube 16 is arranged in the connector 112, the soft pin 12 of firmly infusing, make the soft pin 12 of transfusion be difficult for producing displacement, this link 122 is to see through adhesion glue to engage with this connection tube 16; These plug 15 its materials have certain elasticity in addition, therefore can robust metal pin 13 when this metal needle 13 inserts human body, and when metal needle 13 interior retraction sleeve body 11 inside, this plug 15 can push the soft pin 12 of transfusion slightly, this soft pin 12 of infusing is stabilized, and when metal needle 13 inside contracts, blood can not stopped and can enter in the sleeve body 11.

In addition, one one that discloses this slip needle stand 14 among the figure is exposed this needle stand slide rail 113 outsides, and form the end that a pull handle 141 is connected to this needle stand slide rail 113, and these sleeve body 11 outside suitably places are provided with an effort handle 114, the two ends of this needle stand slide rail 113 are respectively arranged with a needle stand draw-in groove 1131 in addition, those needle stand draw-in grooves 1131 further are provided with a plurality of protruding points 1132 with these needle stand slide rail 113 junctions, after an one of this slip needle stand 14 tipped this needle stand draw-in groove 1131 in, those protruding points 1132 stopped that this slip needle stand 14 enters needle stand slide rail 113.

Shown in Fig. 3 the first action diagram, Fig. 4 the second action diagram and Fig. 5 the 3rd action, how sleeve body 11 will be reduced in the metal needle 13, please consult first Fig. 3 the first action diagram, the pull handle 141 of slip needle stand 14 is pushed into needle stand slide rail 113 by close restricted entry 111 needle stand draw-in grooves 1131 application of forces, because needle stand draw-in groove 1131 is provided with a plurality of protruding points 1132 with these needle stand slide rail 113 junctions, therefore works as pull handle 141 and need use more a little power by needle stand draw-in groove 1131 and these needle stand slide rail 113 junctions.

Then see also Fig. 4 the second action diagram, after pull handle 141 enters needle stand slide rail 113, prop up the effort handle 114 of sleeve body 11 and this pull handle 141 is pulled to the end towards the connector 112 of this sleeve body 11, this slip needle stand 14 is one with this pull handle 141, therefore see through the end that this needle stand slide rail 113 moves to this sleeve body 11, be reduced to the suitable place of these sleeve body 11 inside in the insertion end 121 of this metal needle 13 by the soft pin 12 of transfusion, make this restricted entry 111 only have the insertion end 121 of this soft pin 12 of infusing to expose outside this restricted entry 111.

See also at last Fig. 5 the 3rd action diagram, pull handle 141 is upwards buckled into the needle stand draw-in groove 1131 of these sleeve body 11 ends, because needle stand draw-in groove 1131 and these needle stand slide rail 113 junctions are provided with a plurality of protruding points 1132, therefore need to use more a little power, so, those protruding points 1132 can stop that this slip needle stand 14 enters needle stand slide rail 113, prevent that metal needle 13 from skidding off restricted entry 111.In addition, these plug 15 its materials have certain elasticity, when metal needle 13 interior retraction sleeve body 11 inside, this plug 15 can push the soft pin 12 of transfusion slightly, this soft pin 12 of infusing is stabilized, and when metal needle 13 inside contracts, blood can not stopped and can enter in the sleeve body 11.

See also Fig. 6 enforcement figure, this figure discloses when using safety indwelling needle, after this safety indwelling needle inserts human body, be connected with tube for transfusion 2, and pull back pull handle 141 to needle stand slide rail 113 bottoms and buckle into needle stand draw-in groove 1131, so, stay in the human body on remaining this soft pin 12 of infusing, and utilize fixedly adhesive plaster 3 that safety indwelling needle 1 is fixed.

Claims

1. safety indwelling needle, it mainly comprises:

One sleeve body, an end of this sleeve body has a restricted entry, and another end has a connector, and the pipe shaft of this sleeve body suitably is provided with a needle stand slide rail in the place;

The soft pin of one transfusion, an end of this soft pin of infusing is insertion end, the other end is link;

One metal needle, the outside suitably place of the insertion end that this metal needle system is set in this soft pin of infusing, wherein an end of this metal needle is the pin end, the other end is stiff end;

One slip needle stand, an end that exposes this needle stand slide rail outside and be connected to this needle stand slide rail of this slip needle stand, the stiff end of another one and this metal needle fixes, and be arranged on the suitable place of this sleeve body inside, make the pin end of this metal needle be exposed to this restricted entry outside, the link of this soft pin of infusing is then towards the connector of this sleeve body.

2. by a kind of safety indwelling needle claimed in claim 1, it is characterized in that: be provided with in addition a plug in the restricted entry of this sleeve body one end, this metal needle passes this plug and is exposed to this restricted entry outside.

3. by a kind of safety transfusion needle claimed in claim 1, it is characterized in that: further be provided with a connection tube in this sleeve body other end connector, this connection tube one end is connected with the link of this soft pin of infusing.

4. by a kind of safety indwelling needle claimed in claim 1, it is characterized in that: this link system sees through adhesion glue and engages with this connection tube.

5. by a kind of safety indwelling needle claimed in claim 1, it is characterized in that: the two ends of this needle stand slide rail are respectively arranged with a needle stand draw-in groove, this needle stand draw-in groove and this needle stand slide rail junction further are provided with a plurality of protruding points, after this slip needle stand was tipped this needle stand draw-in groove in, those protruding points stopped that this slip needle stand enters the needle stand slide rail.

6. by a kind of safety indwelling needle claimed in claim 1, it is characterized in that: this slip needle stand sees through this needle stand slide rail and moves to this sleeve body end, be reduced to the suitable place of this sleeve body inside in the insertion end of this metal needle by the soft pin of transfusion, make this restricted entry only have the insertion end of this soft pin of infusing to expose outside this restriction opening.

7. by a kind of safety indwelling needle claimed in claim 1, it is characterized in that: one one of this slip needle stand is exposed this needle stand slide rail outside, and forms the end that a pull handle is connected to this needle stand slide rail.

8. by a kind of safety indwelling needle claimed in claim 1, it is characterized in that: the outside suitably place of this sleeve body is provided with an effort handle.

9. by a kind of safety indwelling needle claimed in claim 1, it is characterized in that: the stiff end of this metal needle has the projection of two symmetries, forms a cross-rib structure and is embedded on this slip needle stand, and see through adhesion glue glue and establish and fix.