CN212346536U

CN212346536U - Puncture-proof retractable blood taking needle

Info

Publication number: CN212346536U
Application number: CN202020260782.3U
Authority: CN
Inventors: 苏文娟; 郭蕾; 杨鹤; 马碧焕; 张新元
Original assignee: 920th Hospital of the Joint Logistics Support Force of PLA
Current assignee: 920th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2021-01-15
Anticipated expiration: 2030-03-05

Abstract

The utility model relates to the technical field of blood taking needles, in particular to a puncture-proof retractable blood taking needle, which comprises a protection box and an extrusion block, wherein the central part of the top of the inner wall of the protection box is fixedly connected with a limit cylinder, the central part of the bottom of the limit cylinder is fixedly connected with a puncture needle, the bottom of the extrusion block is fixedly connected with a silica gel pad, the central part of the top of the extrusion block is provided with a limit through hole, the bottom of the limit through hole penetrates through the bottom of the silica gel pad, the limit cylinder is slidably connected inside the limit through hole, the top of the inner wall of the protection box is uniformly and fixedly connected with a reset spring, the bottom of the reset spring is fixedly connected with the top of the extrusion block; the utility model discloses can avoid the pjncture needle to expose in the external world before using and after using, and then avoided medical personnel, patient and recovery personnel to receive the injury, improve the holistic security of the device.

Description

Puncture-proof retractable blood taking needle

Technical Field

The utility model relates to a blood taking needle technical field, concretely relates to prevent stinging retractable blood taking needle.

Background

The blood sampling is generally divided into venous blood sampling and finger blood sampling, the venous blood sampling amount is large, the blood sampling device is suitable for routine blood examination, blood analysis and the like, the finger blood sampling has the advantages of small blood volume demand, quick and simple operation and the like, symptoms such as cold, fever and the like occur or blood sugar is detected, and the blood sampling examination is generally carried out from the finger.

At the in-process of pointing the blood sampling, often use disposable blood taking needle to prick the patient finger, collect blood again, because the blood taking needle is pulling out the safety helmet back, the syringe needle exposes outside, stab medical personnel easily after the blood sampling, the personnel of patient and processing syringe needle, there is the potential safety hazard, and traditional blood taking needle is little with patient finger contact surface, skid easily at the puncture in-process, make the pjncture needle incline easily and insert the patient and point in, make the wound difficult to heal, lead to the puncture failure easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a prevent stinging retractable blood taking needle possesses advantages such as security height, has solved traditional blood taking needle and has stabbed medical personnel, patient's problem easily.

The utility model discloses a prevent stinging retractable blood taking needle, including protection box and extrusion piece, the protection box is bottom open structure, the central fixedly connected with spacing cylinder at protection box inner wall top, the central fixedly connected with pjncture needle of spacing cylinder bottom, the bottom fixedly connected with silica gel pad of extrusion piece, spacing through-hole has been seted up to the central authorities at extrusion piece top, the bottom of silica gel pad is run through to the bottom of spacing through-hole, spacing cylinder sliding connection is in the inside of spacing through-hole, the even fixedly connected with reset spring in top of protection box inner wall, reset spring's bottom and the top of extrusion piece are fixed connection mutually, the bottom activity of protection box is pegged graft there is the lid, the central fixedly connected with at lid top is sealed fills up, the top of sealed pad is laminated with the bottom of silica gel pad mutually.

The utility model discloses a prevent stinging retractable blood taking needle, wherein when reset spring is in initial condition, the bottom of extrusion piece and the bottom of protection box are in same horizontal plane, and this structure sets up for the pjncture needle can be hidden in the inside of spacing through-hole, can avoid the pjncture needle to expose in the external world before the use with after using.

The utility model discloses a prevent stinging retractable blood taking needle, wherein the bottom of extrusion piece is convex structure, the shape structure of silica gel pad is the same with the shape structure of extrusion piece bottom, and this structure sets up, and the effectual area of contact that has improved between extrusion piece and the patient finger has improved the frictional force of contact surface simultaneously for the puncture can be more stable going on, has avoided the emergence of phenomenon of skidding.

The utility model discloses a prevent stinging retractable blood taking needle, wherein the shape structure that fills up agrees with mutually with the shape structure of silica gel pad, the central authorities fixed connection silica gel column at sealed pad top, the pjncture needle is located the inside of silica gel column, and this structure setting can play the protection effect to the pjncture needle.

The utility model discloses a prevent stinging retractable blood taking needle, wherein the equal fixedly connected with limit slide in the central authorities of the extrusion piece left and right sides, limit chute has all been seted up to the central authorities of the protection box inner wall left and right sides, limit slide sliding connection is in limit chute's inside, and this structure setting has played the effect of injecing to the movement track of extrusion piece.

The utility model discloses a prevent stinging retractable blood taking needle, wherein extrude the piece top and with reset spring corresponding position department seted up spacing circular slot, protection box inner wall and with the corresponding position department fixedly connected with gag lever post of spacing circular slot, gag lever post sliding connection is in the inside of spacing circular slot, the gag lever post passes reset spring's inside, and this structure sets up, further plays the limiting displacement to the movement track of extrusion piece, avoids during too much the inserting patient finger of pjncture needle, has improved the device's security.

The utility model discloses a prevent stinging retractable blood taking needle, wherein the equal fixedly connected with rubber pad of central authorities at protection box front and back, anti-skidding line has evenly been seted up on the surface of rubber pad, and this structure sets up, has increased staff's finger and the frictional force between the protection box, has improved the stability of puncture in-process.

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

1. the utility model discloses a spacing cylinder and reset spring that set up in the protection box cooperate the spacing through-hole that sets up on the extrusion piece for when reset spring is in initial condition, the pjncture needle of spacing cylinder bottom can be hidden in the inside of spacing through-hole, can avoid the pjncture needle to expose in the external world before the use and after the use, and then avoided medical personnel, patient and recovery personnel to receive the injury, improved the holistic security of the device.

2. The utility model discloses an extrusion piece bottom is convex structure setting, the silica gel pad that cooperation extrusion piece bottom set up, the effectual area of contact that improves between extrusion piece and the patient finger, the frictional force of contact surface has been improved simultaneously, make going on that the puncture can be more stable, the emergence of phenomenon of skidding has been avoided, through the spacing slider who sets up in the extrusion piece left and right sides, the spacing spout of cooperation protection box inner wall setting, the effect of injecing has been played to the motion orbit of extrusion piece, through the spacing circular slot that sets up at extrusion piece top, the gag lever post that cooperation protection box inner wall top set up, further play the prescribed limit to the motion orbit of extrusion piece, avoid too much insert the patient finger of pjncture needle, the device's security has been improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of a top three-dimensional structure of the extrusion block of the present invention;

FIG. 3 is a schematic view of a bottom three-dimensional structure of the extrusion block of the present invention;

FIG. 4 is a schematic view of a three-dimensional structure of the cover of the present invention;

fig. 5 is a schematic view of the overall front structure of the present invention.

In the figure: 1. a protection box; 2. a limiting cylinder; 21. puncturing needle; 3. a return spring; 4. a limiting rod; 5. extruding the block; 51. a limiting through hole; 52. a limiting circular groove; 53. a limiting slide block; 6. a silica gel pad; 7. a limiting chute; 8. a box cover; 9. a gasket; 10. a silica gel column; 11. and (7) a rubber pad.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Please refer to fig. 1-5, the utility model discloses a prevent stinging retractable blood taking needle, including protection box 1 and extrusion piece 5, protection box 1 is bottom open structure, the central fixedly connected with spacing cylinder 2 at protection box 1 inner wall top, the central fixedly connected with pjncture needle 21 of spacing cylinder 2 bottom, the bottom fixedly connected with silica gel pad 6 of extrusion piece 5, spacing through-hole 51 has been seted up to the central authorities at extrusion piece 5 top, the bottom of silica gel pad 6 is run through to the bottom of spacing through-hole 51, spacing cylinder 2 sliding connection is in the inside of spacing through-hole 51, the even fixedly connected with reset spring 3 in top of protection box 1 inner wall, reset spring 3's bottom and the top looks fixed connection of extrusion piece 5, the bottom activity of protection box 1 is pegged graft there is lid 8, the sealed pad 9 of the central fixedly connected with at lid 8 top, the top of sealed pad 9 is laminated with the bottom.

When reset spring 3 was in initial condition, the bottom of extrusion piece 5 was in same horizontal plane with the bottom of protection box 1, and this structure setting for pjncture needle 21 can be hidden in the inside of spacing through-hole 51, can avoid pjncture needle 21 to expose before the use and after the use outside.

The bottom of extrusion piece 5 is convex structure, and the shape structure of silica gel pad 6 is the same with the shape structure of extrusion piece 5 bottom, and this structure setting has effectually improved the area of contact between extrusion piece 5 and the patient finger, has improved the frictional force of contact surface simultaneously for the puncture can be more stable going on, has avoided the emergence of the phenomenon of skidding.

The shape structure of the sealing gasket 9 is matched with the shape structure of the silica gel pad 6, the center of the top of the sealing gasket 9 is fixedly connected with the silica gel column 10, and the puncture needle 21 is positioned inside the silica gel column 10.

The equal fixedly connected with of central authorities of the 5 left and right sides of extrusion piece 53, spacing spout 7 has all been seted up in the central authorities of the 1 inner wall left and right sides of protection box, and spacing slider 53 sliding connection has played the effect of injecing in the inside of spacing spout 7, this structure setting to the movement track of extrusion piece 5.

The top of 5 extrusion pieces and the position department corresponding with reset spring 3 has seted up spacing circular slot 52, the protection box 1 inner wall and with the corresponding position department fixedly connected with gag lever post 4 of spacing circular slot 52, gag lever post 4 sliding connection is in the inside of spacing circular slot 52, gag lever post 4 passes reset spring 3's inside, the structure sets up, further play the limiting displacement to extrusion pieces 5's movement track, avoid during too much the inserting patient of pjncture needle 21 indicates, the device's security has been improved.

The equal fixedly connected with rubber pad 11 in the middle part of protection box 1 front and back, the antiskid line has evenly been seted up on the surface of rubber pad 11, and this structural setting has increased the frictional force between staff's finger and protection box 1, has improved the stability of puncture in-process.

In use the utility model discloses the time, the staff is at first disinfected to patient's finger, then extract lid 8 from protection box 1's bottom, then the staff holds between the fingers the rubber pad 11 that protection box 1 was positive and the back with two fingers, laminate patient's finger top with silica gel pad 6, later grasp protection box 1 power and push down again, under reset spring 3's effect, protection box 1 is whole to be removed downwards, make pjncture needle 21 pass spacing through-hole 51, pierce patient's finger, then the staff cancellation is hard, take protection box 1 from patient's finger, at this moment under reset spring 3's effect, pjncture needle 21 returns spacing through-hole 51's inside again, then the staff with lid 8 reinsert protection box 1's bottom can, last staff extrudes patient's finger, and the blood sampling.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a prevent stinging retractable blood taking needle, includes protection box (1) and extrusion piece (5), its characterized in that: the protection box (1) is of a bottom opening structure, the central part of the top of the inner wall of the protection box (1) is fixedly connected with a limit cylinder (2), the central part of the bottom of the limit cylinder (2) is fixedly connected with a puncture needle (21), the bottom of an extrusion block (5) is fixedly connected with a silica gel pad (6), the central part of the top of the extrusion block (5) is provided with a limit through hole (51), the bottom of the limit through hole (51) penetrates through the bottom of the silica gel pad (6), the limit cylinder (2) is connected to the inside of the limit through hole (51) in a sliding manner, the top of the inner wall of the protection box (1) is uniformly and fixedly connected with a reset spring (3), the bottom of the reset spring (3) is fixedly connected with the top of the extrusion block (5), the bottom of the protection box (1) is movably inserted with a box cover (8), the central part of the, the top of the sealing gasket (9) is attached to the bottom of the silica gel pad (6).

2. A puncture resistant retractable blood lancet according to claim 1, characterized in that: when the return spring (3) is in an initial state, the bottom of the extrusion block (5) and the bottom of the protection box (1) are in the same horizontal plane.

3. A puncture resistant retractable blood lancet according to claim 1, characterized in that: the bottom of the extrusion block (5) is of a circular arc structure, and the shape structure of the silica gel pad (6) is the same as that of the bottom of the extrusion block (5).

4. A puncture resistant retractable blood lancet according to claim 1, characterized in that: the shape structure of the sealing gasket (9) is matched with the shape structure of the silica gel pad (6), the center of the top of the sealing gasket (9) is fixedly connected with the silica gel column (10), and the puncture needle (21) is positioned inside the silica gel column (10).

5. A puncture resistant retractable blood lancet according to claim 1, characterized in that: the equal fixedly connected with of central authorities of extrusion piece (5) left and right sides spacing slider (53), spacing spout (7) have all been seted up in the central authorities of the protection box (1) inner wall left and right sides, spacing slider (53) sliding connection is in the inside of spacing spout (7).

6. A puncture resistant retractable blood lancet according to claim 1, characterized in that: spacing circular slot (52) have been seted up at extrusion piece (5) top and the position department corresponding with reset spring (3), protection box (1) inner wall and with spacing circular slot (52) corresponding position department fixedly connected with gag lever post (4), gag lever post (4) sliding connection is in the inside of spacing circular slot (52), gag lever post (4) pass the inside of reset spring (3).

7. A puncture resistant retractable blood lancet according to claim 1, characterized in that: the anti-skid protection box is characterized in that rubber pads (11) are fixedly connected to the centers of the front face and the back face of the protection box (1), and anti-skid grains are uniformly formed in the surfaces of the rubber pads (11).