Disposable blood taking needle capable of preventing mistaken touch

Abstract

The utility model discloses an anti-mistaken touch disposable blood taking needle which comprises a shell, a moving block is arranged in the shell in a sliding mode, a pressing structure and a needle head are arranged at the position, located at an outlet of the shell, of the moving block, and the tail end of the moving block is connected with the tail of the shell through a second spring. Inward concave grooves are formed in the two sides of the shell, the grooves are communicated with a cavity formed in the shell, pressing parts are arranged at the grooves, one ends of the pressing parts extend into the cavity through the grooves to form limiting heads, the limiting heads are in brittle connection with the pressing parts, the limiting heads are used for stopping and limiting the moving blocks, and the other ends of the pressing parts are connected with the shell; and the pressing part can deform after being pressed by force. According to the disposable blood taking needle capable of preventing mistaken touch, a combined structure of the pressing part and the limiting head which are prepared in advance after being pressed is added under the optimization of an end part extrusion structure, so that when the blood taking needle is used, the end part can be pressed and punctured normally after being pressed in advance.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a prevent mistake disposable blood taking needle. BACKGROUND

[0002] Disposable blood taking needle refers to the disposable use consumable for medical blood taking process, and cannot be repeatedly used. According to the different blood taking modes, blood taking needle can be divided into two kinds of puncture type blood taking needle and incision type blood taking needle. Puncture type blood taking needle mainly acts on blood taking site in the way of needle pricking, is suitable for adult finger blood taking, and incision type blood taking needle acts on blood taking site in the way of blade incision, and since the pain is lighter and enough blood taking amount can be obtained, it is especially suitable for infants, especially newborn infant heel blood taking.

[0003] But the prior art blood taking needle does not have any preliminary preparation structure, and only simple pressing or both ends extrusion will trigger easy mistake, and the blood taking needle after mistake cannot be used again. UTILITY MODEL CONTENT

[0004] The utility model discloses a disposable blood taking needle, which can prevent mistake.

[0005] The utility model discloses a disposable blood taking needle, which can prevent mistake.

[0006] A kind of disposable blood taking needle of preventing mistake, including shell, sliding block is slid in the shell, press structure and needle head are arranged on the sliding block and located at the outlet of the shell, the tail end of the sliding block is connected with the tail of the shell by the second spring;

[0007] The recess is communicated with the cavity formed in the shell, a press portion is arranged at the recess, one end of the press portion extends into the cavity to form a limit head through the recess, the limit head and the press portion are brittlely connected, the limit head is used to block and limit the sliding block, the other end of the press portion is connected with the shell, the press portion can be deformed after exerting force and pressing.

[0008] As a further scheme of the utility model: the length direction of the shell is provided with a strip-shaped groove communicated with the cavity between the two recesses on the side of the shell, a sliding member is slid on the strip-shaped groove, and the sliding member extends into the cavity to form a rod-shaped body for exerting force and pressing the sliding block.

[0009] As a further scheme of the utility model: a sliding groove is arranged along the length direction of the strip-shaped groove, and the sliding member is limited to slide on the strip-shaped groove through the sliding groove.

[0010] As a further scheme of the utility model: the pressing structure includes a pressing sleeve and a first spring, the pressing sleeve is connected with the moving block through the first spring, and a needle is fixed in the pressing sleeve on the moving block.

[0011] As a further scheme of the utility model: the first spring and the second spring are compression springs.

[0012] As a further scheme of the utility model: the pressing part is an elastic structure.

[0013] The utility model discloses the beneficial effect: one -time blood taking needle of false touch prevention, under the optimization of end extrusion structure and increase the combination structure of the pressing part and the limit head that need to press after preliminary preparation, when using its blood taking needle, must press after preliminary preparation only can normal end -part press puncture. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described below in combination with the drawings.

[0015] Fig. 1 It is the structure schematic diagram of use time;

[0016] Fig. 2 It is the schematic diagram of original storage state.

[0017] In the drawing: 1, shell;2, moving block;3, needle;4, pressing sleeve;5, first spring;6, pressing part;601, limit head;8, second spring;101, recess;102, strip slot;103, sliding slot;104, sliding piece. DETAILED DESCRIPTION

[0018] The technical scheme in the utility model embodiment will be further clearly and completely described below in combination with the drawings in the utility model embodiment, and obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor all belong to the range of protection of the utility model.

[0019] Embodiment one, please refer to Figs. 1-2 The utility model discloses a false touch prevention one -time blood taking needle, including shell 1, the shell 1 in -slide has moving block 2, and the moving block 2 is located at the export of shell 1 and is provided with pressing structure and needle 3, and the tail end of moving block 2 is connected with the tail of shell 1 through second spring 8;

[0020] Second spring 8 is tensile spring.

[0021] The shell 1 is provided with a recess 101 inwardly recessed at both sides, the recess 101 is communicated with a cavity formed in the shell 1, a pressing part 6 is arranged at the recess 101, one end of the pressing part 6 extends into the cavity to form a limiting head 601 through the recess 101, the limiting head 601 is connected with the pressing part 6 in fragility, the limiting head 601 is used for blocking and limiting the movement block 2, the other end of the pressing part 6 is connected with the shell 1, the pressing part 6 can be deformed after being pressed by force, and the pressing part 6 is of an elastic structure.

[0022] Embodiment two, please refer to Figs. 1-2 The utility model discloses a kind of mistake-proof disposable blood taking needle, including shell 1, movement block 2 is slid in shell 1, pressing structure and needle 3 are arranged on movement block 2 at the outlet of shell 1, the tail end of movement block 2 is connected with the tail of shell 1 by second spring 8;

[0023] The shell 1 is provided with a recess 101 inwardly recessed at both sides, the recess 101 is communicated with a cavity formed in the shell 1, a pressing part 6 is arranged at the recess 101, one end of the pressing part 6 extends into the cavity to form a limiting head 601 through the recess 101, the limiting head 601 is connected with the pressing part 6 in fragility, the limiting head 601 is used for blocking and limiting the movement block 2, the other end of the pressing part 6 is connected with the shell 1, the pressing part 6 can be deformed after being pressed by force, and the pressing part 6 is of an elastic structure.

[0024] The first spring 5 is a compression spring, and the second spring 8 is a tensile spring.

[0025] The shell 1 is provided with a recess 101 inwardly recessed at both sides, the recess 101 is communicated with a cavity formed in the shell 1, a pressing part 6 is arranged at the recess 101, one end of the pressing part 6 extends into the cavity to form a limiting head 601 through the recess 101, the limiting head 601 is connected with the pressing part 6 in fragility, the limiting head 601 is used for blocking and limiting the movement block 2, the other end of the pressing part 6 is connected with the shell 1, the pressing part 6 can be deformed after being pressed by force, and the pressing part 6 is of an elastic structure.

[0026] In another embodiment, the pressing structure includes a pressing sleeve 4 and a first spring 5, the pressing sleeve 4 is connected with the movement block 2 through the first spring 5, and the needle 3 is fixed in the pressing sleeve 4 on the movement block 2.

[0027] It is worth mentioning that:

[0028] Fig. 2For the original storage state, before use, the operator needs to press the slide 104 with fingers, and then slide down through the chute 103. The rod-shaped body in the slide 104 will exert pressure on the moving block 2 downward, the second spring 8 is deformed under stress, and the pressing portion 6 on both sides is pressed with fingers, so that one end of the pressing portion 6 moves inward, the limiting head 601 can abut against the tail end of the moving block 2, and the slide 104 is released or moved upward to the original position. The second spring 8 generates a pulling force and the limiting head 601 cooperates to keep the moving block 2 in the current position (such as Fig. 1 ), and then press the blood collection needle against the skin, first press the sleeve 4 to contact the skin, the first spring 5 is deformed under stress, the sleeve 4 is pressed against the moving block 2, the moving block 2 is pressed against the limiting head 601, and the limiting head 601 is separated from the pressing portion 6. The sleeve 4 is retracted into the shell 1, the needle 3 is exposed and penetrates the skin. The operation is completed.

[0029] The above describes one embodiment of the utility model in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent changes and improvements within the scope of the utility model application shall still belong to the patent coverage of the utility model.

Claims

1. A mistaken touch prevention disposable blood taking needle comprising a housing (1), characterized in that, The shell (1) is slidably provided with a moving block (2), a pressing structure and a needle (3) are arranged on the moving block (2) at the outlet of the shell (1), and the tail end of the moving block (2) is connected with the tail of the shell (1) through a second spring (8); The shell (1) is slidably provided with a moving block (2), a pressing structure and a needle (3) are arranged on the moving block (2) at the outlet of the shell (1), and the tail end of the moving block (2) is connected with the tail of the shell (1) through a second spring (8); 2. The anti-mis-touch disposable blood lancet according to claim 1, wherein, The shell (1) is slidably provided with a moving block (2), a pressing structure and a needle (3) are arranged on the moving block (2) at the outlet of the shell (1), and the tail end of the moving block (2) is connected with the tail of the shell (1) through a second spring (8); 3. The anti-mis-touch disposable blood lancet according to claim 2, wherein, The shell (1) is slidably provided with a moving block (2), a pressing structure and a needle (3) are arranged on the moving block (2) at the outlet of the shell (1), and the tail end of the moving block (2) is connected with the tail of the shell (1) through a second spring (8); 4. The anti-mis-touch disposable blood lancet according to claim 1, wherein, The shell (1) is slidably provided with a moving block (2), a pressing structure and a needle (3) are arranged on the moving block (2) at the outlet of the shell (1), and the tail end of the moving block (2) is connected with the tail of the shell (1) through a second spring (8); 5. The anti-mis-touch disposable blood lancet according to claim 4, wherein, The pressing structure comprises a pressing sleeve (4) and a first spring (5), the pressing sleeve (4) is connected with the moving block (2) through the first spring (5), and the needle (3) is fixed in the pressing sleeve (4) on the moving block (2).

6. The anti-mis-touch lancet according to any one of claims 1 or 5, wherein, The first spring (5) and the second spring (8) are compression springs. The pressing part (6) is an elastic structure. The pressing part (6) is an elastic structure.

Images