CN218792277U

CN218792277U - Safety blood taking needle

Info

Publication number: CN218792277U
Application number: CN202222730466.XU
Authority: CN
Inventors: 闫乐媛; 别晓梅; 苏琴
Original assignee: Fourth Medical Center General Hospital of Chinese PLA
Current assignee: Fourth Medical Center General Hospital of Chinese PLA
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-04-07
Anticipated expiration: 2032-10-17

Abstract

The utility model belongs to the technical field of medical instrument, in particular to safe blood taking needle. The utility model provides a new safe formula blood taking needle, through the protective sheath that sets up two mutual locks, and two protective sheaths can slide in the spout under the drive of slide bar, when having taken out blood, medical personnel can directly open the protective sheath of two locks, the slide bar that also can slide, open the protective sheath under the drive of slide bar, after having taken out blood, the slide bar slides, drive the protective sheath and get back to the normal position, then with two protective sheath locks can, this setting can be different directly overlap the protective sheath on first needle, can avoid medical personnel injured.

Description

Safety blood taking needle

Technical Field

The utility model belongs to the technical field of medical instrument, in particular to safe blood taking needle.

Background

Currently, before a common disposable blood taking needle is used, a needle needs to be sleeved with a needle sleeve to protect the needle, for example, to prevent the needle from being bent or collided. When the blood sampling needle sleeve is used, the puncture danger is easily caused when the needle sleeve is pulled out, but the real danger is in the treatment stage after the blood sampling is finished, after the blood sampling needle sleeve is pulled out from the body of a blood-sampled person, when the blood sampling needle sleeve is discarded and treated, the blood sampling needle sleeve is easily punctured and damaged, and serious consequences such as infection of medical staff are caused.

Chinese patent No. CN 211460246U discloses a blood lancet device capable of separating blood lancets, which can separate blood lancets, and can not only avoid the operation of retracting a protective cover by medical staff, but also avoid accidental injury caused by the fact that recovery and disposal staff cannot find the fallen protective cover in time; however, the device can pull out the first needle after the first needle is separated from the connecting tube, and the medical staff can be injured when the first needle is pulled out.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the utility model provides a novel safety blood taking needle.

The utility model discloses specific technical scheme as follows:

the utility model provides a safe blood taking needle, which comprises a first needle head, a second needle head, a hose and a needle holder, wherein the first needle head is connected with the second needle head through the hose, the second needle head is arranged in the needle holder, the first needle head is connected with a fixed block, and a protection device for protecting the first needle head is arranged on the fixed block; the protection device comprises two protection sleeves which are mutually buckled, two sliding rods and two sliding grooves which are arranged on the fixed block, the two sliding grooves are oppositely arranged, one ends of the two sliding rods are respectively arranged in the two sliding grooves in a sliding mode, and the other ends of the two sliding rods are respectively connected with the two protection sleeves.

The improved structure comprises a slide block and two rotating rods, wherein the slide block is matched with the slide groove to slide, the two rotating rods are hinged to the slide block, the connecting positions of the rotating rods and the slide block are arranged oppositely, and one ends of the rotating rods, far away from the slide block, are connected and are rotatably connected with the end part of the protective sleeve.

The improved structure is characterized in that a handle is arranged on the first needle, the handle is arranged on one side of the sliding groove, a pasting layer is arranged on the handle, and a protective layer is arranged on the pasting layer.

In a further improvement, the needle holder is made of transparent silica gel.

In a further improvement, the needle holder adopts a foldable structure.

The utility model discloses the beneficial effect who gains:

the utility model provides a new safe formula blood taking needle, through the protective sheath that sets up two mutual locks, and two protective sheaths can slide in the spout under the drive of slide bar, when having taken out blood, medical personnel can directly open the protective sheath of two locks, the slide bar that also can slide, open the protective sheath under the drive of slide bar, after having taken out blood, the slide bar slides, drive the protective sheath and get back to the normal position, then with two protective sheath locks can, this setting can be different directly overlap the protective sheath on first needle, can avoid medical personnel injured.

Drawings

FIG. 1 is a schematic structural view of a middle safety blood taking needle of the present invention;

FIG. 2 is a schematic structural view of the sliding rod of the present invention;

fig. 3 is a top view of the middle fixing block of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, which are provided only for explaining the present invention and are not intended to limit the scope of the present invention.

The utility model provides a safe blood taking needle, as shown in figures 1-3, comprising a first needle head 1, a second needle head 2, a hose 3 and a needle holder 4, wherein the first needle head 1 is connected with the second needle head 2 through the hose 3, the second needle head 2 is arranged in the needle holder 4, the first needle head 1 is connected with a fixed block 5, and the fixed block 5 is provided with a protection device 6 for protecting the first needle head 1; the protection device 6 comprises two protection sleeves 61 which are mutually buckled, two sliding rods 62 and two sliding grooves 63 which are arranged on the fixing block 5, the two sliding grooves 63 are oppositely arranged, one ends of the two sliding rods 62 are respectively arranged in the two sliding grooves 63 in a sliding manner, and the other ends of the two sliding rods 62 are respectively connected with the two protection sleeves 61. The dimensions of the drawings in the present application are appropriately scaled.

In the embodiment, after the protective sleeves are opened, the sliding rod is close to one end of the hose along the sliding chute, the two protective sleeves can be directly opened due to clamping connection, and the sliding rod can also be slid, so that the protective sleeves can be driven to be opened by the upward sliding of the sliding rod, the medical personnel can be prevented from contacting the needle point part of the needle head, and the injury can be avoided; after having taken out the blood, with protective sheath slide normal position, because the protective sheath is the column, at this moment, first needle is located the cavity that two protective sheaths formed, from last to holding between the fingers two protective sheaths down, can with two protective sheath joints, when holding between the fingers the bottom, the protective sheath has actually buckled, medical personnel can not contact the needle point of first needle, can avoid medical personnel injured.

As shown in fig. 2 to fig. 3, in this embodiment, each of the two sliding rods 62 includes a sliding block 621 that slides in cooperation with the sliding slot 63, and two rotating rods 622 hinged to the sliding block 621, where connection positions of the two rotating rods 622 and the sliding block 621 are opposite to each other, and one ends of the two rotating rods 622 that are far away from the sliding block 621 are connected to each other and rotatably connected to an end of the protective sleeve 61.

In this embodiment, the rotating rod is hinged to the sliding block, so that the rotating rod can drive the protective sleeve to rotate, blood drawing caused by the influence of the protective sleeve is avoided, the protective sleeve is rotatably connected with the rotating rod (the connection mode belongs to the existing conventional means, such as a bearing and a rotating shaft), when the protective sleeve slides to a position close to one end of the hose, the rotating rod can be rotated, the protective sleeve is rotated to a position parallel to the hose, and the protective sleeve can be rotated at the moment, so that a partial cavity of the protective sleeve can be buckled on the hose, and blood drawing caused by the influence is avoided.

As shown in fig. 1 and fig. 3, in this embodiment, a handle 7 is disposed on the first needle 1, the handle 7 is disposed on one side of the sliding groove 63, an adhesive layer 8 is disposed on the handle 7, and a protective layer 9 is disposed on the adhesive layer 8. Be equipped with on the handle in this embodiment and paste the layer, be in order to prick the blood vessel at first syringe needle after, glue the handle on patient's skin, at this moment, medical personnel can only fix the needle holder can, after taking out blood, directly scratch the handle get off can.

In this embodiment, the needle holder 4 is made of transparent silica gel. The needle holder is made of the transparent silica gel material in the embodiment, so that the second needle can be directly inserted into the needle holder, medical workers can be prevented from being punctured, and the problem that the second needle cannot be butted with the needle holder and cannot be screwed on the needle holder can be solved.

The needle holder 4 in this embodiment is of a foldable structure. In the embodiment, the needle holder is of a folding structure similar to a folding barrel, so that the needle holder can be folded into a flat plate when not in use, and the needle holder can be directly pulled open when in use; the second needle head is fixed with the needle holder, so the second needle head does not need to be fixed with the needle holder after the needle holder is pulled open; the needle holder is made of silica gel or plastic.

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A safe blood taking needle is characterized by comprising a first needle (1), a second needle (2), a hose (3) and a needle holder (4), wherein the first needle (1) is connected with the second needle (2) through the hose (3), the second needle (2) is arranged in the needle holder (4), the first needle (1) is connected with a fixed block (5), and a protection device (6) for protecting the first needle (1) is arranged on the fixed block (5); protection device (6) include two protective sheath (61), two slide bar (62) and two of mutual lock locate spout (63) on fixed block (5), two spout (63) set up relatively, two the one end of slide bar (62) slides respectively and locates two in spout (63), the other end respectively with two protective sheath (61) are connected.

2. The safety lancet of claim 1, wherein each of the two sliding rods (62) comprises a sliding block (621) sliding in cooperation with the sliding slot (63) and two rotating rods (622) hinged to the sliding block (621), the connecting positions of the two rotating rods (622) and the sliding block (621) are opposite, and one ends of the two rotating rods (622) far away from the sliding block (621) are connected and rotatably connected with the end of the protecting sleeve (61).

3. The safety lancet according to claim 2, wherein a handle (7) is provided on the first needle (1), the handle (7) is provided on one side of the sliding groove (63), an adhesive layer (8) is provided on the handle (7), and a protective layer (9) is provided on the adhesive layer (8).

4. A safety lancet according to claim 3, wherein the needle holder (4) is made of transparent silicone.

5. Safety lancet according to claim 1, characterised in that the needle holder (4) is of a collapsible construction.