CN221888241U - Blood collection joint for indwelling needle - Google Patents

Abstract

The utility model belongs to the field of medical equipment, and provides a blood collection connector of a retention needle, which comprises a blood collection connector, a blood collection device and a blood collection device, wherein the blood collection connector comprises a protection mechanism arranged on the blood collection connector and a disinfection mechanism arranged on the protection mechanism; according to the utility model, the heparin cap can be shielded and protected when the device is not used through the protective shell, the situation that the heparin cap is directly exposed to the outside to be in contact with other objects to cause pollution and damage is avoided, the protective shell is limited by the sliding groove and the elastic pad, the protective shell is quickly assembled and disassembled, the protective shell is convenient for personnel to use, the fixing plate can be pressed before the protective shell is rotationally disassembled to extrude iodine between the piston plate and the hollowed-out plate through the piston plate and the cotton pad, the cotton pad can fully adsorb the iodine, so that the heparin cap is sterilized while the protective shell is rotationally disassembled, other sterilizing tools are not required to be carried for secondary sterilization, and the working efficiency is improved.

Description

Indwelling needle blood collection connector

Technical Field

The utility model belongs to the field of medical equipment, in particular to a blood collection connector for an indwelling needle.

Background Art

A blood collection indwelling needle is a medical device used for long-term indwelling venous access. It is often used for patients who need frequent blood collection or infusion. It is mainly composed of a steel needle, a catheter and a fixing device. The use of a blood collection indwelling needle can reduce the harm of multiple punctures to patients and improve the efficiency of blood collection. When using an indwelling needle for blood collection, a blood collection connector is required to connect the blood collection scalp needle with the indwelling needle. It is very important to use a sterile vacuum blood collection tube and the indwelling needle for blood collection.

In a Chinese patent with publication number CN211155827U, a blood sampling connector for an indwelling needle is mentioned, comprising a fixed tube, a connector and a protective sleeve, wherein the fixed tube, the connector and the protective sleeve are all hollow cavities, a connector is provided at one end of the fixed tube, an internal thread is provided on the inner wall surface of the connector, a protective sleeve is provided at the other end of the fixed tube, a fixed layer is provided between the fixed tube and the protective sleeve, a through hole is provided on the fixed layer, and a connecting tube is provided on one side of the fixed layer, which solves the problems of increased puncture times, increased patient pain, and being unfavorable for protecting blood vessels. Connecting the indwelling needle with a blood collector prolongs the venous return path, and patients with poor blood circulation may not be able to successfully draw blood, and need to switch to manual blood drawing with a syringe, which increases the chance of occupational exposure and wastes heparin caps.

However, the above-mentioned blood sampling connector does not have a protective structure, and cannot shield and protect the heparin cap when not in use, and cannot disinfect the surface of the heparin cap when the protective structure is disassembled, resulting in unsatisfactory working efficiency.

Utility Model Content

In order to solve the above technical problems, the utility model provides an indwelling needle blood collection connector to solve the problems in the prior art of having no protective structure, being unable to disinfect the surface of the heparin cap when the protective structure is disassembled, and having low work efficiency.

A blood collection connector for an indwelling needle comprises a blood collection connector, a protection mechanism arranged on the blood collection connector, and a disinfection mechanism arranged on the protection mechanism.

Preferably, a threaded interface is provided on one side of the blood sampling connector, and a heparin cap is provided on the other side of the blood sampling connector.

Preferably, the protection mechanism comprises a connecting seat arranged at the periphery of the blood collection connector, a sliding groove is arranged on the outer surface of the connecting seat, a clamping groove is arranged on the inner side of the sliding groove, and an opening groove is arranged on the other side of the sliding groove.

Preferably, a protective shell is installed on the periphery of the connecting seat, a sliding block is installed on the inner side of the protective shell, an elastic pad is arranged on the inner side of the sliding block, and the opening groove, the sliding groove and the clamping groove are all adapted to the sliding block.

Preferably, the disinfection mechanism comprises a limiting shell arranged in the protective shell, a hollow plate is installed inside the limiting shell, a cotton pad is provided on one side of the hollow plate, a piston plate is provided in the limiting shell on the other side of the hollow plate, a fixed plate is installed on the other side of the piston plate through the protective shell, and a protective cover is provided between the fixed plate and the protective shell.

Preferably, an auxiliary ring is installed on the periphery of the protective shell, a blocking block is installed on the inner side of the auxiliary ring through the protective shell, and a connecting rod is installed on the fixing plate on the other side of the blocking block.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model can shield and protect the heparin cap through the protective shell when the device is not in use, so as to avoid direct exposure to the outside and contact with other objects to cause contamination and damage. In addition, the sliding groove and elastic pad are used for limitation, which is quick to disassemble and assemble, and convenient for personnel to use.

2. The utility model uses the piston plate and the cotton pad to press the fixed plate to squeeze out the iodine attachment between the piston plate and the hollow plate before the protective shell is rotated and removed. The cotton pad can fully absorb the iodine attachment, so that the heparin cap can be disinfected while the protective shell is rotated and removed. There is no need to carry other disinfection tools for secondary disinfection, thereby improving work efficiency.

3. The utility model can limit the position of the piston plate when the device is not in use through the blocking block and the connecting rod, thereby avoiding the situation where the piston plate presses the iodine attachment and squeezes out waste due to accidental touch.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the internal structure of the utility model;

FIG3 is a schematic diagram of the expanded structure of the utility model;

FIG. 4 is a schematic diagram of the structure of the blocking block of the utility model.

In the figure:

1. Blood collection connector; 2. Protection mechanism; 3. Disinfection mechanism;

101. threaded interface; 102. heparin cap;

201, protective shell; 202, connecting seat; 203, card slot; 204, sliding slot; 205, opening slot; 206, slider; 207, elastic pad;

301, auxiliary ring; 302, limiting shell; 303, protective sleeve; 304, fixing plate; 305, piston plate; 306, hollow plate; 307, cotton pad; 308, blocking block; 309, connecting rod.

DETAILED DESCRIPTION

The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

As shown in Figures 1 to 4:

Embodiment 1: The utility model provides an indwelling needle blood collection connector, comprising a blood collection connector 1 , a protection mechanism 2 arranged on the blood collection connector 1 , and a disinfection mechanism 3 arranged on the protection mechanism 2 .

Specifically, a threaded interface 101 is provided on one side of the blood sampling connector 1 , and a heparin cap 102 is provided on the other side of the blood sampling connector 1 .

Furthermore, the protection mechanism 2 includes a connecting seat 202 arranged on the periphery of the blood collection connector 1, a sliding groove 204 is arranged on the outer surface of the connecting seat 202, a clamping groove 203 is arranged on the inner side of the sliding groove 204, and an opening groove 205 is arranged on the other side of the sliding groove 204.

Furthermore, a protective shell 201 is installed on the periphery of the connecting seat 202, a slider 206 is installed on the inner side of the protective shell 201, an elastic pad 207 is arranged on the inner side of the slider 206, the opening groove 205, the sliding groove 204 and the card slot 203 are all adapted to the slider 206, wherein the elastic pad 207 will confine the slider 206 in the card slot 203 through its own elastic force when the user does not rotate the protective shell 201, thereby improving the stability of the protective shell 201.

As can be seen from the above, the blood collection connector 1 can be connected to the safety device of the indwelling needle through the threaded interface 101. The protective shell 201 will shield and protect the heparin cap 102 when not in use to prevent it from directly contacting other objects and causing contamination or damage. When it is needed, only a certain force needs to be applied to rotate the protective shell 201, so that the elastic pad 207 elastically contracts and separates from the card slot 203, so that the slider 206 slides into the sliding slot 204, and slides in the sliding slot 204 until it moves to the position of the opening slot 205, and then the protective shell 201 is pulled to the other side of the device, so that the slider 206 slides out of the sliding slot 204 through the opening slot 205, so that the protective shell 201 is separated from the blood collection connector 1, which is convenient for personnel to insert the blood collection scalp needle into the heparin cap 102, so that the sterile vacuum blood collection tube is connected to the indwelling needle for blood collection.

Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the disinfection mechanism 3 includes a limiting shell 302 arranged in the protective shell 201, a hollow plate 306 is installed inside the limiting shell 302, a cotton pad 307 is arranged on one side of the hollow plate 306, a piston plate 305 is arranged in the limiting shell 302 on the other side of the hollow plate 306, a fixing plate 304 is installed on the other side of the piston plate 305 through the protective shell 201, and a protective cover 303 is arranged between the fixing plate 304 and the protective shell 201.

Specifically, an auxiliary ring 301 is installed on the periphery of the protective shell 201 , a blocking block 308 is installed on the inner side of the auxiliary ring 301 penetrating through the protective shell 201 , and a connecting rod 309 is installed on the fixing plate 304 on the other side of the blocking block 308 .

As can be seen from the above, when the user needs to remove the protective shell 201 during use, it is possible.

Working principle: connect the blood sampling connector 1 with the safety device of the indwelling needle through the threaded interface 101. When it is needed, rotate the auxiliary ring 301 to stagger the blocking block 308 and the connecting rod 309, and then press the protective sleeve 303 to drive the fixed plate 304 to move synchronously to one side of the device. When the fixed plate 304 moves, it will drive the piston plate 305 to move, so that the iodine attachment between the piston plate 305 and the hollow plate 306 will be squeezed out through the gap in the hollow plate 306, and the cotton pad 307 will fully absorb the squeezed iodine attachment. Rotate the protective shell 201 to make the elastic pad 207 elastically contract and fit into the card slot 2 03 is separated, so that the slider 206 slides into the sliding groove 204, and slides in the sliding groove 204 until it moves to the position of the opening groove 205. When the protective shell 201 is rotated, the cotton pad 307 will be driven to rotate synchronously, so that the surface of the heparin cap 102 is wiped and disinfected by the cotton pad 307, and then the protective shell 201 is pulled to the other side of the device, so that the slider 206 slides out of the sliding groove 204 through the opening groove 205, so that the protective shell 201 is separated from the blood collection connector 1, and the staff inserts the blood collection scalp needle into the heparin cap 102, so that the sterile vacuum blood collection tube is connected with the indwelling needle for blood collection.

The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims (4)

1. An indwelling needle blood collection connector, characterized in that it comprises: a blood collection connector (1), a protection mechanism (2) arranged on the blood collection connector (1), and a disinfection mechanism (3) arranged on the protection mechanism (2); The protection mechanism (2) comprises a connection seat (202) arranged on the periphery of the blood sampling connector (1), a sliding groove (204) is arranged on the periphery of the connection seat (202), a clamping groove (203) is arranged on the inner side of the sliding groove (204), and an opening groove (205) is arranged on the other side of the sliding groove (204); A protective shell (201) is installed on the periphery of the connecting seat (202), a slider (206) is installed on the inner side of the protective shell (201), an elastic pad (207) is arranged on the inner side of the slider (206), and the opening groove (205), the sliding groove (204) and the clamping groove (203) are all adapted to the slider (206). 2. An indwelling needle blood collection connector as described in claim 1, characterized in that a threaded interface (101) is provided on one side of the blood collection connector (1), and a heparin cap (102) is provided on the other side of the blood collection connector (1). 3. An indwelling needle blood collection connector as described in claim 1, characterized in that: the disinfection mechanism (3) includes a limiting shell (302) arranged in the protective shell (201), a hollow plate (306) is installed inside the limiting shell (302), a cotton pad (307) is arranged on one side of the hollow plate (306), a piston plate (305) is arranged in the limiting shell (302) on the other side of the hollow plate (306), a fixing plate (304) is installed on the other side of the piston plate (305) through the protective shell (201), and a protective sleeve (303) is arranged between the fixing plate (304) and the protective shell (201). 4. An indwelling needle blood collection connector as described in claim 3, characterized in that an auxiliary ring (301) is installed on the periphery of the protective shell (201), a blocking block (308) is installed on the inner side of the auxiliary ring (301) penetrating through the protective shell (201), and a connecting rod (309) is installed on the fixed plate (304) on the other side of the blocking block (308).