CN111374680B

CN111374680B - Blood taking needle head protection device

Info

Publication number: CN111374680B
Application number: CN202010244480.1A
Authority: CN
Inventors: 张永剑; 朱代学; 王书华; 秦宏平; 张庆军; 吴传秀
Original assignee: Jiangsu Suyun Medical Materials Co Ltd
Current assignee: Jiangsu Suyun Medical Materials Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-10-02
Anticipated expiration: 2040-03-31
Also published as: CN111374680A

Abstract

The invention relates to the field of blood taking needles, in particular to a blood taking needle protecting device which comprises a sliding piece and a supporting piece; the slider is provided with a through cavity, the through cavity is in sliding fit with the needle seat, a groove body extends from the edge of the side wall of the through cavity along the length direction, and the groove body comprises a first accommodating groove, a first clamp, a structure and a sliding channel; the needle base is provided with a handle, the first clamp and the structure allow the handle to move into the first accommodating groove from the sliding channel, and after the handle moves in place, the sliding piece is coated outside the needle head; the support piece comprises an open end, two edges of the open end are provided with two convex edges, the two convex edges penetrate through the groove body and protrude out of the sliding piece, and the two convex edges are used for opening the first clamping piece and the structure position, so that the handle moves from the first accommodating groove to the sliding channel. The blood taking needle head protecting device can effectively realize the protection in the transportation process and after the use of the blood taking needle, reduce the risk of stabbing of nursing personnel and simultaneously avoid the occurrence of pollution.

Description

Blood taking needle head protection device

Technical Field

The invention relates to the field of blood taking needles, in particular to a blood taking needle head protecting device.

Background

Currently, a technique of taking blood from a patient and assaying with a blood taking needle is widely used in hospitals.

Traditional blood taking needle protects through the protective sheath before not using to clean sealed through the sealing bag, thereby guarantee the cleanliness factor of height, can avoid the syringe needle to puncture sealing bag and stab the nursing staff through setting up of protective sheath. When blood is collected, a nursing staff pulls out the protective sleeve of the needle head to take blood by puncture, and the blood automatically flows into the blood collecting tube due to the negative pressure effect in the blood collecting tube; after blood is collected, the blood collecting tube is pulled out, then the puncture needle end is pulled out, and the used blood collecting needle is thrown into the sharp instrument storage box. In the process, as the needle head is always exposed in the air, the risk that nursing staff are stabbed by the needle head is high, and infection is easily caused; and when a lancet is thrown into the sharps container, the lancet previously discarded in the sharps container may also stab a caregiver by the needle tip orientation.

In order to overcome the problems, after the blood taking needle is used, an operator puts the traditional blood taking needle on the protective sleeve again, but the operation is extremely inconvenient, the difficulty exists in centering the protective sleeve and the needle head, the nursing staff is easily stabbed in the process to cause infection, great risk exists, and a great amount of time is wasted by the operation.

In view of the above, the inventor of the present invention has made extensive research and innovation based on practical experience and professional knowledge in engineering application of such products for many years, and together with the application of theory, to create a blood taking needle protecting device, which is more practical.

Disclosure of Invention

The invention provides a blood taking needle head protecting device, which effectively solves the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a lancet needle protecting device includes a slider and a support;

the slider is provided with a through cavity which is in sliding fit with the needle seat, and the needle seat is used for fixing the needle head; a groove body extends from the edge along the length direction on the side wall of the through cavity, and the groove body sequentially comprises a first accommodating groove, a first card, a structure and a sliding channel from the bottom to the extending direction of the edge of the sliding piece;

the needle base is provided with a handle, the first clamp and the structure allow the handle to move into the first accommodating groove from the sliding channel, and after the handle moves in place, the sliding piece is coated outside the needle head;

the support piece comprises an open end, two convex edges are arranged on two edges of the open end, the two convex edges penetrate through the groove body and protrude out of the slider, and the two convex edges are used for opening the first clamp and the structure at the position, so that the handle moves from the first accommodating groove to the sliding channel, and the needle head is exposed after the handle moves in place to collect blood.

Further, a rubber ring is arranged between the supporting piece and the needle head;

the needle seat is provided with a step structure at the position connected with the needle head, and the step structure is used for ejecting the rubber ring from the inside of the supporting piece when the supporting piece reaches the first clamp and the structure position.

Furthermore, the first clamp and the structure comprise two symmetrically arranged clamping blocks, each clamping block comprises a connecting end connected with the corresponding groove body and a free end swinging around the connecting end, a guide slope surface is arranged between the connecting end and the free end, and the two clamping blocks are opened under the extrusion of the handle on the guide slope surface and the support of the two convex edges, so that the handle can pass through the clamping blocks.

Further, the slot body also comprises a second card and structure and an opening end, and the second card and the structure are sequentially positioned on the other side of the sliding channel relative to the first card and structure;

the second card and structure allow the handle to move bi-directionally.

Furthermore, the second clamp and the structure comprise two symmetrically arranged clamping blocks, each clamping block comprises a connecting end connected with the groove body and a free end swinging around the connecting end, a guide slope surface is arranged between the two clamping blocks, and the two clamping blocks are opened under the extrusion of the handle on the guide slope surface;

and two clamping blocks in the second clamping and structure are oppositely provided with angle guiding structures at the edges of the free ends, and the two clamping blocks are opened under the extrusion of the handle to the angle guiding structures.

Furthermore, the end face of the first clip and the clip block in the structure, which is positioned in the first accommodating groove, is parallel to the side wall of the needle seat.

Further, the edge of the convex edge is provided with a convex part, and the convex part is arranged on the back side of the convex edge relative to the open end.

Further, the periphery of the sliding piece comprises a plane and a circular arc surface connected with the plane.

Furthermore, the plane and/or the arc surface are/is provided with anti-skid grains.

Through the technical scheme, the invention has the beneficial effects that:

the blood taking needle head protecting device can effectively realize the protection in the transportation process and after the use of the blood taking needle, reduce the risk of stabbing of nursing personnel and simultaneously avoid the occurrence of pollution.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a lancet needle protecting device separated from a needle holder and a needle;

FIG. 2 is a schematic structural view of a slider;

FIG. 3 is a schematic view showing the installation of the lancet needle protecting device;

FIG. 4 is a schematic structural view of the support member;

FIG. 5 is a schematic view of the mounting of the support and rubber ring;

FIG. 6 is an enlarged view of a portion of FIG. 1 at A;

FIG. 7 is an enlarged view of a portion of FIG. 3 at B;

FIG. 8 is an enlarged view of the fixture block;

fig. 9 is a schematic view of a preferred structure of the slider;

fig. 10 is an enlarged view of a portion of the end of the slider of fig. 9;

reference numerals: the structure comprises a sliding piece 1, a through cavity 11, a first accommodating groove 12, a first clamping and structure 13, a sliding channel 14, a second clamping and structure 15, an opening end 16, a clamping block 17, a connecting end 17a, a free end 17b, a guide slope 17c, a plane 18, a circular arc surface 19, an anti-skid thread 110, a support 2, an open end 21, a convex edge 22, a convex part 23, a needle 3, a needle seat 4, a handle 41 and a step structure 42.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

This embodiment is written in a progressive manner.

As shown in figures 1 to 4, a lancet needle protecting device comprises a slider 1 and a support 2; the slider 1 is provided with a through cavity 11, the through cavity 11 is in sliding fit with the needle seat 4, and the needle seat 4 is used for fixing the needle head 3; a groove body extends from the edge along the length direction on the side wall of the through cavity 11, and the groove body sequentially comprises a first accommodating groove 12, a first card and structure 13 and a sliding channel 14 from the bottom to the extending direction of the edge of the sliding piece 1; the needle seat 4 is provided with a handle 41, the first clip and the structure 13 allow the handle 41 to move from the sliding channel 14 to the first containing groove 12, and after the handle is moved to the right position, the sliding piece 1 is covered outside the needle head 3; the supporting member 2 includes an open end 21, two edges of the open end 21 have two protruding edges 22, the two protruding edges 22 penetrate through the slot body and protrude outside the slider 1, and the two protruding edges 22 are used for opening the first clip and structure 13 at a position, so that the handle 41 moves from the first receiving groove 12 to the sliding channel 14, and the needle 3 is exposed after moving to a position for blood collection.

The existing blood taking needle head structure comprises a needle head 3, a needle seat 4 and a handle 41, the blood taking needle head protection device can improve the existing blood taking needle, replaces the original needle sleeve structure, and obtains three application occasions before blood taking, during blood taking and after blood taking.

Before blood collection: handle 41 sets up in first storage tank 12, and the length scope that the length of saddle 1 covers syringe needle 3 protects the syringe needle, and support piece 2 and laminating saddle 1 inner wall setting this moment, and two protruding edges 22 can set up in sliding channel 14 and elasticity laminating avoids losing on sliding channel 14 both sides wall, under this kind of state, can realize the transportation of blood taking needle etc. avoids puncturing the sealed bag and causing harm to the nursing staff in the transportation, also can reduce contaminated possibility simultaneously.

In blood collection: force is applied to the needle seat 4 and the sliding piece 1, so that the handle 41 slides along the groove body, in the process, the support piece 2 needs to be firstly moved to the position of the first clamping and structure 13 to be opened, the handle 41 is allowed to pass through, when the sliding piece 1 integrally slides to the rear end of the handle 41, the needle head 3 is exposed, in the process, force can be applied to the sliding piece 1 through the part of the convex edge 22 exceeding the sliding piece 1, the opening degree of the open end 21 is adjusted, the first clamping and structure 13 is convenient to open, and the support piece 2 can be directly discarded after blood collection is finished.

After blood collection: the needle holder 4 and the slider 1 are forced to directly and unidirectionally slide the handle 41 into the first receiving groove 12 without an external structure.

Can effectually realize in the blood taking needle transportation and use the protection after accomplishing through above-mentioned blood taking needle syringe needle protection device, reduce the risk that nursing staff was stabbed, also can avoid the emergence of the pollution circumstances simultaneously.

As a preference of the above embodiment, as shown in fig. 5 and 6, a rubber ring 5 is further provided between the support 2 and the needle 3; a step structure 42 is arranged at the position where the needle seat 4 is connected with the needle 3, and the step structure 42 is used for ejecting the rubber ring 5 out of the inside of the support 2 when the support 2 reaches the position of the first clamping structure 13. The rubber ring 5 is arranged to ensure that the needle 3 is effectively supported and protected, ensure the centering between the needle and the slider 1, prevent the needle 3 from being bent and the like in the transportation process, and can be removed along with the removal of the support 2 after the rubber ring 5 is ejected out of the support 2.

In order to facilitate the opening of the first latch and structure 13, as shown in fig. 7 and 8, in the preferred embodiment, the first latch and structure 13 includes two symmetrically disposed latch blocks 17, the latch block 17 includes a connecting end 17a connected to the slot body and a free end 17b swinging around the connecting end 17a, a guiding slope 17c is disposed therebetween, and the two latch blocks 17 are opened under the pressing of the handle 41 against the guiding slope 17c and the support of the two protruding edges 22, so as to allow the handle 41 to pass through.

Can make it through the setting of fixture block 17 through back and elastic automatic recovery to guarantee the unidirectional flux nature under the no exogenic action, wherein, when two protruding edges 22 supported two fixture blocks 17, preferably support through the elastic force automation between two protruding edges 22, and avoid nursing staff's the degree of difficulty of applying of external force, the elastic modulus of accessible support piece 2 controls, after nursing staff removes the external force of two protruding edges 22, make the two automatic support two fixture blocks 17 and open.

As a preference of the above embodiment, as shown in fig. 9, the channel body further comprises a second card and structure 15 and an open end 16, which are sequentially located on the other side of the slide channel 14 opposite to the first card and structure 13; the second catch and structure 15 allows the handle 41 to move bi-directionally. The second clip and structure 15 comprises two symmetrically arranged clip blocks 17, each clip block 17 comprises a connecting end 17a connected with the groove body and a free end 17b swinging around the connecting end 17a, a guide slope 17c is arranged between the connecting end 17a and the free end, and the two clip blocks 17 are opened under the extrusion of the handle 41 on the guide slope 17 c; the two latch blocks 17 in the second latch structure 15 are provided with angle guiding structures 17d at the edges of the free ends 17b, and the two latch blocks 17 are opened under the extrusion of the handle 41 to the angle guiding structures 17 d. Through the setting of second card and structure 15, the purpose is blockked slider 1 when taking blood, avoids it to cause the influence to the blood sampling process, and the setting of direction domatic 17c and lead angle structure 17d for second card and structure 15 can bear handle 41 and come from the extrusion force of two directions and open, need not with the help of extra structure, only need the nursing staff to exert oneself slightly and can remove the blockking of handle 41.

The end face of the block 17 of the first engaging structure 13 located in the first receiving groove 12 is parallel to the side wall of the needle holder 4, so that the handle 41 can be stably fixed in the first receiving groove 12 by the first engaging structure 13 under the action of the supporting member 2, thereby preventing the needle 3 from being exposed due to incorrect opening.

As a preference of the above embodiment, the edge of the ledge 22 is provided with the convex portion 23, the convex portion 23 is provided on the back side of the ledge 22 opposite to the open end 21, the edge of the trough body can be limited between the convex portion 23 and the support member 2, so as to avoid loss, and the convex portion 23 can also be used as the force application portion.

Preferably, as shown in fig. 10, the periphery of the slider 1 comprises a flat surface 18 and a circular arc surface 19 connected with the flat surface 18, the flat surface 18 is arranged to prevent the lancet from rolling when placed, meanwhile, the arrangement of the flat surface 18 and the circular arc surface 19 is more suitable for holding, in order to increase friction force, anti-skid grains can be added on the flat surface 18 and/or the circular arc surface 19, and anti-skid grains 110 can be arranged on the handle 3 for the same purpose.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A lancet needle protection device is characterized by comprising a slider (1) and a support (2);

the slider (1) is provided with a through cavity (11), the through cavity (11) is in sliding fit with the needle seat (4), and the needle seat (4) is used for fixing the needle head (3); a groove body extends from the edge to the length direction on the side wall of the through cavity (11), and the groove body sequentially comprises a first accommodating groove (12), a first clamp and structure (13) and a sliding channel (14) from the bottom to the edge of the sliding piece (1);

the needle seat (4) is provided with a handle (41), the first clamping structure (13) allows the handle (41) to move from the sliding channel (14) to the first accommodating groove (12), and after the handle (41) moves to the right position, the slider (1) is coated outside the needle head (3);

the supporting piece (2) comprises an open end (21), two convex edges (22) are arranged at two edges of the open end (21), the two convex edges (22) penetrate through the groove body and protrude out of the slider (1), the two convex edges (22) are used for opening the first clamping and structure (13) at the position, so that the handle (41) moves from the first accommodating groove (12) to the sliding channel (14), and the needle head (3) is exposed after the handle is moved to the position for blood sampling;

a rubber ring (5) is arranged between the support piece (2) and the needle head (3);

the needle seat (4) and the needle head (3) are connected to form a stepped structure (42), and the stepped structure (42) is used for ejecting the rubber ring (5) from the inside of the support piece (2) when the support piece (2) reaches the position of the first clamping structure (13).

2. The lancet needle protection device according to claim 1, wherein the first latch and structure (13) comprises two symmetrically arranged latch blocks (17), the latch blocks (17) comprise a connecting end (17 a) connected with the groove body and a free end (17 b) swinging around the connecting end (17 a), a guide slope (17 c) is arranged between the two latch blocks, and the two latch blocks (17) are opened under the extrusion of the handle (41) to the guide slope (17 c) and the support of the two convex edges (22) so as to be passed by the handle (41).

3. The lancet needle protector according to claim 1, characterized in that the channel body further comprises a second catch and formation (15) and an open end (16) which are located in sequence on the other side of the sliding channel (14) with respect to the first catch and formation (13);

the second card and structure (15) allows bi-directional movement of the handle (41).

4. The lancet needle protection device according to claim 3, wherein the second latch and structure (15) comprises two symmetrically arranged latch blocks (17), the latch blocks (17) comprise a connecting end (17 a) connected with the slot body and a free end (17 b) swinging around the connecting end (17 a), a guide slope (17 c) is arranged between the two latch blocks, and the two latch blocks (17) are opened under the extrusion of the handle (41) to the guide slope (17 c);

two clamping blocks (17) in the second clamping and structure (15) are positioned at the edges of the free ends (17 b) and are oppositely provided with angle guiding structures (17 d), and the two clamping blocks (17) are opened under the extrusion of the handle (41) to the angle guiding structures (17 d).

5. The lancet needle protecting device according to claim 2, wherein the end surface of the catching block (17) of the first catching and structure (13) in the first receiving groove (12) is parallel to the side wall of the needle holder (4).

6. The lancet needle protecting device according to claim 1, wherein an edge of the raised rim (22) is provided with a convex portion (23), the convex portion (23) being provided on a back side of the raised rim (22) with respect to the open end (21).

7. The lancet needle protection device according to claim 1 or 6, characterized in that the slider (1) comprises a flat surface (18) and a circular arc surface (19) connected to the flat surface (18) at its periphery.

8. The lancet needle protecting device according to claim 7, wherein the flat surface (18) and/or the circular arc surface (19) is provided with an anti-slip pattern (110).