CN214965657U - Safety blood taking needle - Google Patents

Abstract

The utility model discloses a safety blood taking needle, which belongs to the technical field of medical instruments, and adopts the technical proposal that the safety blood taking needle comprises a catheter cavity, the puncture angle can be flexibly improved by the inclined plane design of an indwelling needle, the wound healing is accelerated, the indwelling needle can be pushed to the intravenous blood sampling by pushing a push plate with forefinger, a blood returning cavity can be used for storing blood returning, the auxiliary blood sampling can be carried out in the process of placing the tube through an exhaust plug, the flow rate of the blood returning is improved, the blood in the blood returning cavity can be conveyed into a connecting tube through the catheter, then the blood is conveyed into a needle head through the connecting tube, the blood taking tube is inserted into a needle cylinder and connected with the needle head, the blood can smoothly enter the blood taking tube, the mutual matching of the needle cylinder and a rubber sleeve can prevent the medical personnel from being punctured in the operation process, two sliders can be manually pushed to move to the right after the blood sampling, the two sliders can drive a slide bar to move to the right in a through groove, the remaining needle is promoted to move towards the inside of the protective sleeve, and then the remaining needle can be retracted into the protective sleeve, so that unnecessary puncture is avoided.

Description

Safety blood taking needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to safe type blood taking needle.

Background

The blood taking needle is the indispensable instrument when doctor's blood sampling, and mainly used is all different to the collection of a small amount of blood to different blood sampling positions of different patients when the blood sampling, leads to current blood taking needle can't carry out the hidden position of health and takes a blood sample, and at the blood sampling in-process, the blood gathering that will gather is usually in the blood taking needle, is flowing through the pipe drainage simultaneously.

However, in the process of using the existing blood taking needle for medical care personnel, most medical care personnel are injured by the needle with different degrees, so that the blood taking process is dangerous, and the physical and psychological health of the medical care personnel is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a safety blood taking needle, which aims to solve the problem that a medical worker is injured by a needle in the using process.

The utility model discloses a realize like this, a safe type blood taking needle, including the pipe chamber, the right side fixedly connected with push plate in pipe chamber, the right side of push plate can be dismantled and be connected with the back blood chamber, the right side intercommunication in back blood chamber has the core vent, the right side intercommunication of core vent has the pipe, the other end intercommunication of pipe has the connecting pipe, the other end intercommunication of connecting pipe has the syringe needle, the cylinder is installed to the outer wall of syringe needle, the outer wall fixedly connected with rubber sleeve of syringe needle, the left side intercommunication in pipe chamber has the protective sheath, the internally mounted of protective sheath has the needle of keeping somewhere.

In order to avoid unnecessary stabbing, the utility model discloses a safe type blood taking needle is preferred, two logical grooves have been seted up to the outer wall of protective sheath, two slide bars of the outer wall fixedly connected with of indwelling needle, two the slide bar all runs through logical groove and extends to the outside and the fixedly connected with slider that lead to the groove.

In order to avoid stabbing medical staff in the blood sampling process, the utility model discloses a safe type blood sampling needle is preferred, the length of rubber sleeve is less than the length of cylinder, and is greater than the length of syringe needle.

In order to prevent the danger of blood leading out and air embolism, the utility model discloses a safe type blood taking needle is preferred, the internally mounted of pipe chamber has the valve to push away the ware, the left side of valve pushes away the ware is installed and is prevented the refluence valve.

In order to facilitate the check of the blood dosage in the blood return cavity, the utility model discloses a safe blood taking needle is preferred, the blood return cavity is transparent material, the left side intercommunication of cylinder and rubber sleeve.

In order to reduce the removal of pipe in the blood vessel, and then increase the stability of pipe, the utility model discloses a safe type blood taking needle is preferred, the fixed plate is installed to the lower terminal surface of push plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the safe blood taking needle can flexibly improve the puncture angle by designing the indwelling needle as an inclined plane, accelerate wound healing, push the pushing plate by using the forefinger to push the indwelling needle to take blood in a vein, the blood return cavity can be used for storing return blood, auxiliary blood taking can be carried out in the process of tube placement through the vent plug, the flow rate of the return blood is improved, the blood in the blood return cavity can be conveyed into the connecting tube through the catheter and then enters the needle head through the connecting tube, the blood taking tube is inserted into the needle cylinder and is connected with the needle head, the blood can smoothly enter the blood taking tube, and the problem that medical workers are punctured in the operation process can be prevented through the mutual matching of the needle cylinder and the rubber sleeve;

2. according to the safety blood taking needle, after blood taking, the two sliding blocks can be manually pushed to move rightwards, so that the two sliding blocks can drive the sliding rod to move rightwards in the through groove, the remaining needle is driven to move inwards the protective sleeve, the remaining needle can be retracted into the protective sleeve, and unnecessary puncture is avoided;

to sum up, this kind of safe type blood taking needle has realized preventing the problem of being stabbed when medical personnel are taking a blood sample, and then has avoided causing the effect of influence to medical personnel's physical and mental health.

Drawings

FIG. 1 is an overall structure view of a safety blood taking needle of the present invention;

FIG. 2 is an internal structure view of the cylinder of the present invention;

FIG. 3 is a view of the inner structure of the catheter lumen and the protective sheath of the present invention;

fig. 4 is an enlarged structural view of a portion a of fig. 3 according to the present invention.

In the figure, 1, a catheter lumen; 101. a push plate; 102. a valve ejector; 103. an anti-reflux valve; 2. a fixing plate; 3. a blood return cavity; 301. a vent plug; 4. a protective sleeve; 401. a through groove; 402. an indwelling needle; 403. a slider; 404. a slide bar; 5. a conduit; 501. a connecting pipe; 502. a needle cylinder; 503. a rubber sleeve; 504. a needle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a safety type blood taking needle, including pipe chamber 1, the right side fixedly connected with push plate 101 in pipe chamber 1, the right side of push plate 101 can be dismantled and be connected with blood return chamber 3, the right side intercommunication in blood return chamber 3 has core vent 301, the right side intercommunication of core vent 301 has pipe 5, the other end intercommunication of pipe 5 has connecting pipe 501, the other end intercommunication of connecting pipe 501 has syringe needle 504, cylinder 502 is installed to the outer wall of syringe needle 504, the outer wall fixedly connected with rubber sleeve 503 of syringe needle 504, the left side intercommunication in pipe chamber 1 has protective sheath 4, the internally mounted of protective sheath 4 has indwelling needle 402.

In this embodiment: can improve the puncture angle for the inclined plane design in a flexible way through keeping somewhere needle 402, accelerate wound healing, promote push plate 101 with the forefinger and can keep somewhere needle 402 propelling movement to the intravenous blood sampling, blood return chamber 3 can be used to store the blood return, can assist the blood sampling at the in-process of putting the pipe through air release plug 301, improve the velocity of flow of blood return, can carry the blood in blood return chamber 3 to connecting pipe 501 in through pipe 5, get into in syringe needle 504 by connecting pipe 501 again, be connected with syringe needle 504 in inserting syringe 502 through with the blood sampling pipe, can make blood get into the blood sampling pipe smoothly, mutually support through syringe 502 and rubber sleeve 503, can prevent the problem that medical personnel were stabbed at the in-process of operation.

As a technical optimization scheme of the utility model, two logical grooves 401 have been seted up to the outer wall of protective sheath 4, keep somewhere two slide bars 404 of outer wall fixedly connected with of needle 402, and two slide bars 404 all run through logical groove 401 and extend to the outside and the fixedly connected with slider 403 that lead to groove 401.

In this embodiment: after blood collection, the two sliding blocks 403 can be manually pushed to move rightwards, so that the two sliding blocks 403 can drive the sliding rod 404 to move rightwards in the through groove 401, the remaining needle 402 is driven to move inwards the protective sleeve 4, and the remaining needle 402 can be retracted into the protective sleeve 4, and unnecessary puncture is avoided.

As a technical optimization scheme of the utility model, the length of the rubber sleeve 503 is less than that of the needle cylinder 502 and is greater than that of the needle 504.

In this embodiment: the rubber sleeve 503 has a length smaller than that of the syringe 502 and larger than that of the needle 504, so that the medical staff can be prevented from being punctured in the blood sampling process.

As a technical optimization scheme of the utility model, the internally mounted of pipe chamber 1 has the valve to push away ware 102, and the left side that the valve pushed away ware 102 is installed and is prevented valve 103 that turns back.

In this embodiment: the valve pusher 102 is used for facilitating smooth blood sampling, the valve anti-reflux valve 103 can be automatically opened for blood sampling during blood sampling, and the valve can be automatically closed after blood sampling, so that the danger of blood extraction and air embolism is prevented.

As a technical optimization scheme of the utility model, the blood returning cavity 3 is made of transparent material, and the needle cylinder 502 is communicated with the left side of the rubber sleeve 503.

In this embodiment: the blood returning cavity 3 is made of transparent material so as to facilitate the check of the blood dosage in the blood returning cavity 3, and the syringe 502 is communicated with the left side of the rubber sleeve 503 so as to facilitate the smooth connection of the subsequent needle 504 and the blood sampling tube.

As a technical optimization scheme of the utility model, fixed plate 2 is installed to the lower terminal surface of push plate 101.

In this embodiment: the movement of the catheter 5 in the vessel can be reduced by the fixing plate 2, thereby increasing the stability of the catheter 5.

The working principle is as follows: the puncture angle can be flexibly improved by the inclined plane design of the remaining needle 402, the wound healing is accelerated, the remaining needle 402 can be pushed to the vein for blood collection by pushing the pushing plate 101 with the index finger, the blood return cavity 3 can be used for storing the blood return, the auxiliary blood collection can be carried out in the tube placing process through the vent plug 301, the flow rate of the blood return is improved, the blood in the blood return cavity 3 can be conveyed into the connecting tube 501 through the catheter 5 and then enters the needle head 504 through the connecting tube 501, the blood collection tube is inserted into the needle cylinder 502 and is connected with the needle head 504, the blood can smoothly enter the blood collection tube 503, the problem that medical workers are punctured in the operation process can be prevented through the mutual matching of the needle cylinder 502 and the rubber sleeve 503, the two sliding blocks 403 can be manually pushed to move rightwards after the blood collection, the two sliding blocks 403 can drive the sliding rod 404 to move rightwards in the through groove 401, the remaining needle 402 is driven to move inwards the protective sleeve 4, and then the remaining needle 402 can retract into the protective sleeve 4, thereby avoiding unnecessary stabbing.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides a safe type blood taking needle, includes pipe chamber (1), its characterized in that: the right side fixedly connected with push plate (101) of pipe chamber (1), the right side of push plate (101) can be dismantled and be connected with blood return chamber (3), the right side intercommunication in blood return chamber (3) has core vent (301), the right side intercommunication of core vent (301) has pipe (5), the other end intercommunication of pipe (5) has connecting pipe (501), the other end intercommunication of connecting pipe (501) has syringe needle (504), cylinder (502) are installed to the outer wall of syringe needle (504), the outer wall fixedly connected with rubber sleeve (503) of syringe needle (504), the left side intercommunication in pipe chamber (1) has protective sheath (4), the internally mounted of protective sheath (4) has remaining needle (402).

2. A safety lancet according to claim 1, characterised in that: two through grooves (401) have been seted up to the outer wall of protective sheath (4), two slide bars (404) of the outer wall fixedly connected with of needle (402) are kept somewhere, two slide bar (404) all run through groove (401) and extend to outside and fixedly connected with slider (403) that lead to groove (401).

3. A safety lancet according to claim 1, characterised in that: the length of the rubber sleeve (503) is less than that of the syringe (502) and greater than that of the needle (504).

4. A safety lancet according to claim 1, characterised in that: a valve pusher (102) is arranged in the catheter cavity (1), and a valve (103) for preventing reverse flow is arranged on the left side of the valve pusher (102).

5. A safety lancet according to claim 1, characterised in that: the blood return cavity (3) is made of transparent materials, and the needle cylinder (502) is communicated with the left side of the rubber sleeve (503).

6. A safety lancet according to claim 1, characterised in that: the lower end surface of the pushing plate (101) is provided with a fixing plate (2).

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