CN213940750U - Disposable retraction type injection blood sampling safety puncture needle head - Google Patents

Abstract

The utility model provides a disposable retraction type injection blood sampling safety puncture needle head, which comprises a puncture part, a puncture part retraction device and a retraction spring; after injection or blood sampling is finished, the safety puncture needle head drives the puncture needle head to retract to the puncture needle head retraction device by pressing the button to release the elastic force, so that the risk of secondary puncture when medical personnel handle a sharp instrument box is avoided, and the safety puncture needle head plays a role in protecting the safety of the medical personnel; the protective cover wraps and covers the key, so that the failure of injection and blood sampling caused by mistakenly touching the key during the injection and blood sampling operation can be prevented, meanwhile, the retractable puncture needle can prevent residual blood from polluting the environment, and the waste needle is prevented from being recycled again; the safe puncture needle head is simple to operate, the possibility of puncture injury is cut off immediately after the operation is completed, the safe, time-saving, trouble-saving and labor-saving puncture needle head is safe, saves time and labor, provides a safe and convenient operation tool for busy and complex medical processes, and has obvious medical, economic and social values.

Description

Disposable retraction type injection blood sampling safety puncture needle head

The technical field is as follows:

the utility model relates to the technical field of medical equipment, concretely relates to disposable retraction type injection blood sampling safety puncture needle head.

Background art:

in clinical work, blood taking needles or injection needles can be used for blood taking or injection treatment only by puncturing the skin on the body surface of a human body through a puncture needle head. The blood specimen collection through the blood vessel or the injection treatment by using the injection needle is the medical operation which is required to be carried out by medical staff every day, and the physical health index of a patient is obtained according to the medical operation and the medical operation is assisted. Blood collection needles and injection needles are among the most common and important disposable consumables for medical institutions. After the blood sampling of the existing blood taking needle or injection needle is finished, medical care personnel need to sleeve the thin hard protective sleeve on the puncture needle, and the finger is easily punctured by careless attention, so that the puncture injury is caused. If the protective sleeve is not sleeved in time, medical pollution is easily caused or other people are stabbed again, cross infection (including high-risk diseases such as hepatitis B, hepatitis C, AIDS and the like) is caused, and the danger is high. Statistical data show that the incidence of needle stick injuries of Indian nursing staff is 67.4%, Korean nursing staff is 70.4%, and American nursing staff is 64%, and the incidence of needle stick injuries of nursing staff is high in China. At present, the needle stick injury becomes a major safety problem concerned by medical care personnel all over the world, is closely related to the safety of the medical care personnel, the protection of medical resources and the health of patients, and how to improve the disposable blood taking needle or the injection needle to ensure the medical care personnel to feel at ease and work safely is the key point for preventing the needle stick injury. Therefore, there is a need for an improved retractable needle for puncturing, which can be retracted and hidden quickly after the injection and blood collection are finished and the retraction button is activated, so as to block the occurrence of puncture from the source.

The invention content is as follows:

the utility model aims at solving the problems mentioned above and providing a disposable retraction type injection blood sampling safety puncture needle head which can rapidly retract and hide the puncture needle after the injection and the blood sampling are finished.

The utility model adopts the following technical scheme to realize the purpose of the invention: a disposable retraction type injection blood sampling safety puncture needle head comprises a puncture part, a puncture part retraction device and a retraction spring; the puncture part comprises a hard connecting pipe, a connecting pipe end plate, a puncture needle and a key, wherein one end of the hard connecting pipe is connected with the connecting pipe end plate, the puncture needle is arranged at the other end of the connecting pipe end plate, and the key is arranged on the hard connecting pipe; the puncture part retraction device comprises a sleeve, a hand-held ear and a key penetrating hole, the sleeve is hollow, the hand-held ear is sleeved at the front end of the sleeve, the key penetrating hole is arranged on the top side of the middle part of the sleeve, a sleeve end plate is arranged at the front end of the sleeve, a puncture needle penetrating hole is arranged in the center of the sleeve end plate, and a hard connecting pipe penetrating hole is arranged at the rear end of the sleeve; the puncture part is sleeved in the puncture part retraction device and can only move back and forth along the puncture part retraction device, the puncture needle penetrates out of the puncture needle penetrating hole, and the key penetrates out of the key penetrating hole; one end of the retraction spring is fixedly connected with the connecting pipe end plate, and the other end of the retraction spring is fixedly connected with the connecting sleeve end plate.

Furthermore, the puncture part retraction device also comprises a protective cover, one end of the protective cover is hinged to one end of the key penetrating hole, and the protective cover covers the key completely after covering.

Further, the button includes spring sleeve, button spring, spring top plate, spliced pole and presses the clamp plate, and spring sleeve bottom fixed mounting is on the stereoplasm connecting pipe, and in spring sleeve was located to the spring top plate, button spring located between spring sleeve bottom surface and the spring top plate, and spring top plate is connected to spliced pole one end, and the other end extends spring sleeve top surface, presses the other end of clamp plate connection at the spliced pole.

Furthermore, the disposable retraction type injection blood sampling safety puncture needle also comprises a packaging box, the packaging box comprises a packaging box body and a sealing film, the top surface of the packaging box body is open, and the sealing film seals the top surface of the packaging box body; two first stand columns and two second stand columns are arranged in the middle of the bottom surface of the packaging box body, the two first stand columns and the two second stand columns are respectively spaced by a certain distance, and the corresponding first stand columns and the corresponding second stand columns are also spaced by a certain distance.

Preferably, the specification size of the two second upright columns is larger than that of the two first upright columns; the distance between the two first upright columns is larger than the distance between the two second upright columns.

By adopting the technical scheme, the utility model discloses better realize its invention purpose, this disposable retraction formula injection blood sampling safety puncture needle drives the puncture needle and contracts to puncture needle retraction device through pressing button release elasticity after the injection blood sampling is finished, has blocked the emergence of puncture wound from the source, has avoided medical personnel to take place the risk of secondary puncture wound when handling sharp machine box, has played the effect of protecting medical personnel's safety; the protection cover is arranged to cover the key, so that the failure of injection and blood sampling caused by mistakenly touching the key during injection and blood sampling operation can be prevented, meanwhile, the packaging box body is provided with a plurality of stand columns, the puncture needle retraction device is restrained among the stand columns when the puncture needle is packaged, the key and/or the protection cover are overhead, and the puncture needle retraction caused by mistakenly touching the key and/or the protection cover in the transportation process is prevented, so that the puncture needle cannot be used; meanwhile, the retractable puncture needle head can prevent residual blood from polluting the environment, and the waste needle head is prevented from being recycled again. The safe puncture needle head is simple to operate, the possibility of puncture injury is cut off immediately after the operation is completed, the safe, time-saving, trouble-saving and labor-saving puncture needle head is safe, saves time and labor, provides a safe and convenient operation tool for busy and complex medical processes, and has obvious medical, economic and social values.

Description of the drawings:

fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the puncturing part 1 of the present invention.

Fig. 3 is a schematic structural view of the puncture retraction device 2 of the present invention.

Fig. 4 is a schematic structural view of the puncture retraction device 2 of the present invention.

Fig. 5 is a schematic structural diagram of the middle button 14 of the present invention.

Fig. 6 is a schematic structural diagram of the middle packing box 5 of the present invention.

Fig. 7 is a schematic structural diagram of embodiment 2 of the present invention.

The reference numerals are illustrated in the following table.

Name of label	Number of mark	Name of label	Number of mark
				1	Puncture part 1	211	Sleeve end plate 211
11	Hard connecting pipe 11	212	Puncture needle outlet 212
				12	Connecting the pipe end plate 12	213	Hard connecting pipe outlet hole 213
13	Puncture needle 13	22	Hand-held ear 22
				14	Key 14	23	Key through hole 23
141	Spring sleeve 141	24	Protective cover 24
				142	Key spring 142	3	Connecting hose 3
143	Spring top plate 143	4	Blood sampling part 4
				144	Connecting post 144	5	Packing box body 5
145	Pressing plate 145	51	First upright 51
				2	Puncture retraction device 2	52	Second upright 52
21	Sleeve 21

The specific implementation mode is as follows:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative effort, and the contents of the invention will be further described below with reference to the drawings: example 1:

referring to the attached drawings 1, 2, 3 and 4, the disposable retraction type injection blood sampling safety puncture needle head of the utility model comprises a puncture part 1, a puncture part retraction device 2 and a retraction spring; the puncture part 1 comprises a hard connecting pipe 11, a connecting pipe end plate 12, a puncture needle 13 and a key 14, wherein one end of the hard connecting pipe 11 is connected with the connecting pipe end plate 12, the puncture needle 13 is arranged at the other end of the connecting pipe end plate 12, and the key 14 is arranged on the hard connecting pipe 11; the puncture part retraction device 2 comprises a sleeve 21, a hand-held ear 22 and a key penetrating hole 23, wherein the sleeve 21 is hollow, the hand-held ear 22 is sleeved at the front end of the sleeve 21, the key penetrating hole 23 is arranged on the top side of the middle part of the sleeve 21, the front end of the sleeve 21 is provided with a sleeve end plate 211, the center of the sleeve end plate 211 is provided with a puncture needle penetrating hole 212, and the rear end of the sleeve 21 is provided with a hard connecting tube penetrating hole 213; the puncture part 1 is sleeved in the puncture part retraction device 2 and can only move back and forth along the puncture part retraction device 2, the puncture needle 13 penetrates out of the puncture needle penetrating hole 212, and the key 14 penetrates out of the key penetrating hole 23; one end of the retraction spring is fixedly connected with the connecting pipe end plate 12, and the other end is fixedly connected with the connecting sleeve end plate 211.

It should be noted that: the initial state of the retraction spring installed between the connection tube end plate 12 and the sleeve end plate 211 is a compressed state, and the retraction spring releases the elastic force of the retraction of the puncture part 1 by the change of the retraction to the stretched state.

Referring to fig. 3, 4 and 5, the puncture retraction device 2 further includes a protective cover 24, the button 14 includes a spring sleeve 141, a button spring 142, a spring top plate 143, a connection column 144 and a pressing plate 145, the bottom of the spring sleeve 141 is fixedly mounted on the hard connection tube 11, the spring top plate 143 is disposed in the spring sleeve 141, the button spring 142 is disposed between the bottom surface of the spring sleeve 141 and the spring top plate 143, one end of the connection column 144 is connected to the spring top plate 143, the other end extends out of the top surface of the spring sleeve 141, the pressing plate 145 is connected to the other end of the connection column 144, and the spring top plate 143 is limited in the spring sleeve 141 to move only up and down; the pressing plate 145 is clamped in the key passing hole 23; one end of the protective cover 24 is hinged to one end of the button penetration hole 23, the protective cover 24 covers the pressing plate 145 completely, the protective cover 24 is a square or round cover, after blood collection is finished, the protective cover 24 is opened to expose the pressing plate 145, the pressing plate 145 is pressed, the pressing plate 145 is separated from the button penetration hole 23, and the puncture part 1 retracts to the interior of the puncture part retraction device 2 under the action of the retraction spring.

It should be noted that: the initial state of the key spring 142 is a stretched state, the pressing plate 145 is stably clamped in the key insertion hole 23 by the elastic force of the key spring 142, when the pressing plate 145 is pressed, the key spring 142 is compressed until the pressing plate 145 is completely separated from the key insertion hole 23, and the puncturing part 1 retracts into the puncturing part retracting device 2 by the retracting spring.

Referring to the attached figure 6, the disposable retractable injection blood sampling safety puncture needle further comprises a packaging box, the packaging box comprises a packaging box body 5 and a sealing film, the top surface of the packaging box body is open, and the sealing film seals the top surface of the packaging box body; two first upright columns 51 and two second upright columns 52 are arranged in the middle of the bottom surface of the packaging box body 5, the two first upright columns 51 and the two second upright columns 52 are respectively spaced at a certain distance, and the corresponding first upright columns 51 and the second upright columns 52 are also spaced at a certain distance; the specification size of the two second upright columns 52 is larger than that of the two first upright columns 51; the distance between two first uprights 51 is greater than the distance between two second uprights 52; the lancet retraction device is constrained between a plurality of posts (the handle ears 22 and the sleeve 21 are sandwiched between two first posts 51 and two second posts 52, wherein the front end of the sleeve 21 is sandwiched between two second posts 52) when the lancet is packaged, and the push button and/or the protective cover are elevated.

Example 2:

referring to fig. 7, the disposable retractable safety lancet of the present embodiment includes the disposable retractable injection blood sampling safety lancet head of embodiment 1, a connection hose 3 and a blood sampling portion 4, wherein one end of the connection hose 3 is connected to a hard connection tube 11, the other end is connected to the blood sampling portion 4, and the blood sampling portion 4 is used for connecting a vacuum blood sampling tube to sample blood.

The use method of the disposable retraction type injection blood sampling safety blood taking needle in the embodiment comprises the following steps: taking out a blood taking needle from the packaging bag, puncturing the blood taking needle by a puncturing needle 13, penetrating the blood taking part 4 into the vacuum blood taking tube after the puncturing is successful, and drawing the blood into the vacuum blood taking tube through the connecting hose 3 and the blood taking part 4 under the action of negative pressure; so repeating, can realize the collection of multitubular blood sample, after the blood sampling finishes or pulls out the needle, open protective cover 24, make and press the pressing plate 145 to expose, press the pressing plate 145 to move down and break away from the button and wear out the hole 23, push whole puncture part 1 to retract under the effect of the retraction spring and move to puncture part retraction device 2 rear portion, make puncture needle 13 all retract to puncture part retraction device 2 inside, carry out local hemostasis to the puncture point afterwards, pull out blood sampling portion 4 from the vacuum blood collection tube, abandon the blood sampling needle to the specialized sharp ware garbage bin in all.

Example 3:

the disposable retraction type safety injection needle comprises the disposable retraction type injection blood sampling safety puncture needle head and an injector in embodiment 1, wherein the puncture needle head is directly sleeved on the nipple of the injector through a hard connecting pipe 11; although the embodiment does not provide a corresponding figure, in combination with the existing structure of the injection needle and the content of embodiment 1, the medical staff in the field can easily imagine the specific structure of the retractable blood sampling injection safety injection needle and the specific structure of the retractable blood sampling injection safety puncture needle head and the syringe; and (4) connecting modes.

It should be noted that: when the retractable blood sampling and injection safety puncture needle is used for an injection needle, the retractable blood sampling and injection safety puncture needle is not provided with a hand-held ear 22.

The use method of the disposable retraction type injection blood sampling safety injection needle in the embodiment comprises the following steps: taking out an injection needle from the packaging bag, performing puncture through the puncture needle 13, and injecting the medicine in the injector into the blood vessel of the patient after the puncture is successful; after the injection is finished, the protective cover 24 is opened to expose the pressing plate 145, the pressing plate 145 is pressed, the pressing plate 145 moves downwards to be separated from the key penetrating hole 23, the whole puncture part 1 is pushed to retract under the action of the retraction spring to move towards the rear part of the puncture part retraction device 2, the puncture needle 13 is completely retracted into the puncture part retraction device 2, and then local hemostasis is carried out on the puncture point to discard the injection needle into a special sharp device garbage can.

It is clear that modifications and/or additions of parts may be made to the disposable retractable injection blood collection safety spike and corresponding method as described heretofore, without departing from the field and scope of the present invention.

It is also clear that, although the present invention has been described in detail with reference to a disposable retractable safety lancet, a person skilled in the art shall certainly be able to achieve many other equivalent forms of disposable retractable safety lancet for injecting and collecting blood and corresponding methods, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

Claims (5)

1. The utility model provides a disposable retraction type injection blood sampling safety puncture needle which characterized in that: comprises a puncture part (1), a puncture part retraction device (2) and a retraction spring; the puncture part (1) comprises a hard connecting pipe (11), a connecting pipe end plate (12), a puncture needle (13) and a key (14), wherein one end of the hard connecting pipe (11) is connected with the connecting pipe end plate (12), the puncture needle (13) is arranged at the other end of the connecting pipe end plate (12), and the key (14) is arranged on the hard connecting pipe (11); the puncture part retraction device (2) comprises a sleeve (21), a handheld ear (22) and a key penetrating hole (23), wherein the sleeve (21) is hollow, the handheld ear (22) is sleeved at the front end of the sleeve (21), the key penetrating hole (23) is formed in the top side of the middle part of the sleeve (21), a sleeve end plate (211) is arranged at the front end of the sleeve (21), a puncture needle penetrating hole (212) is formed in the center of the sleeve end plate (211), and a hard connecting pipe penetrating hole (213) is formed in the rear end of the sleeve (21); the puncture part (1) is sleeved in the puncture part retraction device (2) and can only move back and forth along the puncture part retraction device (2), the puncture needle (13) penetrates out of the puncture needle penetrating hole (212), and the key (14) penetrates out of the key penetrating hole (23); one end of the retraction spring is fixedly connected with the connecting pipe end plate (12), and the other end of the retraction spring is fixedly connected with the connecting sleeve end plate (211).

2. The disposable retractable safety needle for blood sampling and injection according to claim 1, wherein: the puncture part retracting device (2) also comprises a protective cover (24), one end of the protective cover (24) is hinged to one end of the key penetrating hole (23), and the protective cover (24) covers the key (14) completely.

3. The disposable retractable safety needle for blood sampling and injection according to claim 1, wherein: the button (14) comprises a spring sleeve (141), a button spring (142), a spring top plate (143), a connecting column (144) and a pressing plate (145), the bottom of the spring sleeve (141) is fixedly installed on the hard connecting pipe (11), the spring top plate (143) is arranged in the spring sleeve (141), the button spring (142) is arranged between the bottom surface of the spring sleeve (141) and the spring top plate (143), one end of the connecting column (144) is connected with the spring top plate (143), the other end of the connecting column (144) extends out of the top surface of the spring sleeve (141), and the pressing plate (145) is connected to the other end of the connecting column (144).

4. The disposable retractable safety needle for blood sampling and injection according to claim 1, wherein: the disposable retraction type injection blood sampling safety puncture needle also comprises a packaging box, wherein the packaging box comprises a packaging box body (5) and a sealing film, the top surface of the packaging box body is open, and the sealing film seals the top surface of the packaging box body; two first upright columns (51) and two second upright columns (52) are arranged in the middle of the bottom surface of the packaging box body (5), the two first upright columns (51) and the two second upright columns (52) are respectively spaced at a certain distance, and the corresponding first upright columns (51) and the corresponding second upright columns (52) are also spaced at a certain distance.

5. The disposable retractable safety needle for blood sampling and injection according to claim 4, wherein: the specification size of the two second vertical columns (52) is larger than that of the two first vertical columns (51); the distance between the two first uprights (51) is greater than the distance between the two second uprights (52).

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