CN215534432U

CN215534432U - Butterfly wing type safety venous blood taking needle

Info

Publication number: CN215534432U
Application number: CN202121997371.3U
Authority: CN
Inventors: 陈林林; 王继明
Original assignee: Fourth Affiliated Hospital of Anhui Medical University
Current assignee: Fourth Affiliated Hospital of Anhui Medical University
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-18
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a butterfly wing type safety venous blood taking needle which comprises a needle tube and a blood transfusion tube, wherein one end of the blood transfusion tube is fixedly connected with a sliding rod, the top of the sliding rod is fixedly connected with a needle head, one end of the blood transfusion tube, which is far away from the sliding rod, is fixedly connected with a blood storage device, two sides of the needle tube are rotatably connected with rotating shafts, one side of each rotating shaft, which is far away from the needle tube, is fixedly connected with a fixing plate, one end of each fixing plate, which is far away from the rotating shaft, is fixedly connected with a butterfly wing plate, an inserting piece is slidably connected onto the fixing plate, the outer side wall of each fixing plate is sleeved with a traction rope, the inner side wall of the needle tube is fixedly connected with a transverse plate, the top of the transverse plate is fixedly connected with a telescopic spring, and one side of each butterfly wing plate is fixedly connected with a plurality of sticking blocks. According to the utility model, through the matching among the sticking block, the fixing plate, the rotating shaft, the plug-in unit, the traction rope and the telescopic spring, the blood sampling efficiency is improved, and the operation of medical personnel is simple and convenient.

Description

Butterfly wing type safety venous blood taking needle

Technical Field

The utility model relates to the technical field of medical supplies, in particular to a butterfly wing type safety venous blood taking needle.

Background

The utility model provides a blood taking needle for gathering blood sample in medical treatment inspection process, constitute by syringe needle and needle bar, the syringe needle is established at the head of needle bar, sliding connection has the sheath on the needle bar, the initial position that is equipped with reset spring and sheath between sheath and needle bar is located the head of syringe needle and needle bar, when the needle tubing is held to the operator and is pressed the blood taking needle head on patient's limbs, the sheath is indentation under the elasticity effect of skin, make the syringe needle protrusion and pierce skin and cause the wicresoft, the sheath resets again under reset spring's effect after pulling out the blood taking needle and covers the syringe needle in order to avoid the syringe needle to expose and be polluted or the human body of accidental puncture, when the blood taking needle is pulled out, the cavity that needle tubing and skin enclosed enlarges gradually, form instantaneous negative pressure, be favorable to the collection of blood sample.

Compared with related documents, the publication number is CN209899405U, a blood taking needle is disclosed, relating to the field of medical supplies in the market, and the blood taking needle with a protective sleeve capable of being automatically sleeved on a needle head is provided, wherein the blood taking needle comprises a needle tube hard end and a needle head connected to the front end of the needle tube hard end; the device also comprises an end socket outer sleeve, a protective sleeve and an elastic piece; the end sleeve is sleeved outside the needle tube hard end, the rear end of the end sleeve is connected with the needle tube hard end, an annular hole is formed between the end sleeve and the needle tube hard end, a guide long groove is formed in the end sleeve and comprises a main guide groove arranged in the front-back direction and a rear positioning groove located on one side of the rear end of the main guide groove; the protective sleeve comprises a protective sleeve main body and a connecting rod, the protective sleeve main body and the elastic piece are sleeved on the hard end of the needle tube and are positioned in the annular hole, the connecting rod is connected with the rear end of the protective sleeve main body and penetrates through the guide long groove, and the connecting rod is positioned in the rear positioning groove; the elastic piece can push the protective sleeve main body forwards, the puncture risk can be reduced, the operation can be completed by one hand, and the operation is very simple and convenient.

In the comparison file, through the cooperation between protective sheath, direction elongated slot and the connecting rod, reduce the puncture risk, make the operation more simple and convenient, but when medical personnel took a blood sample to the patient, at the blood sampling in-process, need take the sticky tape in addition and fix patient's arm, it is unstable to prevent to take a blood sample, but such operation has reduced blood sampling efficiency, and the operation is inconvenient, for this reason, provides a butterfly wing formula safety type vein blood taking needle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a butterfly wing type safety venous blood taking needle.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a butterfly wing type safety venous blood taking needle comprises a needle tube and a blood transfusion tube, wherein one end of the blood transfusion tube is fixedly connected with a sliding rod, the top of the sliding rod is fixedly connected with a needle head, and one end of the blood transfusion tube, which is far away from the sliding rod, is fixedly connected with a blood storage device;

the both sides of needle tubing are rotated and are connected with the axis of rotation, one side fixedly connected with fixed plate of needle tubing is kept away from in the axis of rotation, the one end fixedly connected with butterfly pterygoid lamina of axis of rotation is kept away from to the fixed plate, sliding connection has the plug-in components on the fixed plate, the lateral wall cover of fixed plate is equipped with the haulage rope, the inside wall fixedly connected with diaphragm of needle tubing, the top fixedly connected with expanding spring of diaphragm, a plurality of sticking blocks of one side fixedly connected with of butterfly pterygoid lamina.

Preferably, the two sides of the needle tube are provided with rotating grooves, and the rotating shaft is rotatably connected with the needle tube through the rotating grooves.

Preferably, a winding groove is formed in the outer side wall of the rotating shaft, one end of the traction rope is connected to the winding groove, and the other end of the traction rope is connected to the bottom of the sliding rod.

Preferably, the bottom and the top of the needle tube are both provided with a first sliding groove, and the needle head and the blood transfusion tube are in sliding connection with the needle tube through the first sliding groove.

Preferably, one end of the telescopic spring is connected to the transverse plate, and the other end of the telescopic spring is connected to the bottom of the sliding rod.

Preferably, a connector is formed in the sliding rod, the needle is communicated with the blood transfusion tube through the connector, second sliding grooves are formed in two sides of the fixing plate, and the fixing plate and the needle tube are fixed through the second sliding grooves by the plug-in unit.

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

1. according to the butterfly wing type safety venous blood taking needle provided by the utility model, through the matching among the sticking block, the fixing plate, the rotating shaft, the plug-in piece, the traction rope and the expansion spring, when blood is taken, a medical worker pulls out the plug-in piece, and rotates the butterfly wing plate, so that a needle head positioned in the needle tube is popped out according to the action of the expansion spring, and the medical worker can take blood for a patient.

Drawings

FIG. 1 is a schematic structural view of a butterfly wing type safety venous blood taking needle according to the present invention;

FIG. 2 is a schematic structural view of a butterfly wing type safety venous blood taking needle according to the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is a schematic view of the internal structure of a butterfly wing type safety venous blood taking needle according to the present invention

In the figure: 1 needle tube, 2 blood transfusion tubes, 3 blood reservoir, 4 butterfly wing plates, 401 sticking blocks, 402 fixing plates, 403 rotating shafts, 404 plug-in units, 405 traction ropes, 406 transverse plates, 407 telescopic springs, 5 needles and 6 sliding rods.

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.

As shown in fig. 1 and 2, a butterfly wing type safety type venous blood taking needle comprises a needle tube 1 and a blood transfusion tube 2, wherein one end of the blood transfusion tube 2 is fixedly connected with a sliding rod 6, the top of the sliding rod 6 is fixedly connected with a needle head 5, the sliding rod 6 is provided with a connecting port, the needle head 5 is communicated with the blood transfusion tube 2 through the connecting port, the bottom and the top of the needle tube 1 are both provided with first sliding grooves, the needle head 5 and the blood transfusion tube 2 are slidably connected with the needle tube 1 through the first sliding grooves, and one end of the blood transfusion tube 2, which is far away from the sliding rod 6, is fixedly connected with a blood storage device 3;

as shown in fig. 3 and 4, a rotation shaft 403 is rotatably connected to two sides of the needle tube 1, rotation grooves are formed in two sides of the needle tube 1, the rotation shaft 403 is rotatably connected to the needle tube 1 through the rotation grooves, a fixing plate 402 is fixedly connected to one side of the rotation shaft 403 away from the needle tube 1, a butterfly wing plate 4 is fixedly connected to one end of the fixing plate 402 away from the rotation shaft 403, an insert 404 is slidably connected to the fixing plate 402, second sliding grooves are formed in two sides of the fixing plate 402, the fixing plate 402 is fixed to the needle tube 1 through the second sliding grooves by the insert 404, a traction rope 405 is sleeved on an outer side wall of the fixing plate 402, a winding groove is formed on an outer side wall of the rotation shaft 403, one end of the traction rope 405 is connected to the winding groove, the other end of the traction rope 405 is connected to the bottom of the sliding rod 6, a transverse plate 406 is fixedly connected to an inner side wall of the needle tube 1, one end of a telescopic spring 407 is connected to the transverse plate 406, the other end of the telescopic spring 407 is connected to the bottom of the sliding rod 6, the top fixedly connected with extension spring 407 of diaphragm 406, a plurality of sticking block 401 of one side fixedly connected with of butterfly pterygoid lamina 4, when taking a blood sample, medical personnel extract plug-in components 404, rotate butterfly pterygoid lamina 4, thereby make the syringe needle 5 that is located needle tubing 1 pop out according to extension spring 407's effect, make medical personnel take a blood sample to the patient, through such setting, the security of effectual protection syringe needle 5 on the one hand, avoid the pollution of syringe needle 5, simultaneously through the effect of popping out, the risk of stabbing has been avoided, on the other hand is through rotating butterfly pterygoid lamina 4, make the one side that is connected with sticking block 401 paste on patient's arm, fix patient's arm, blood sampling efficiency has been promoted, medical personnel's operation has been made things convenient.

As shown in fig. 1-4, the functional principle of the present invention can be illustrated by the following operation modes: firstly, when a medical staff needs to take blood from a patient, the prepared blood taking needle is taken out, the plug-in 404 is pulled out, the butterfly wing plate 4 rotates according to the action of the rotating shaft 403, the model of the traction rope 405 wound on the outer side wall of the rotating shaft 403 is loosened, the sliding rod 6 is further upwards bounced according to the action of the telescopic spring 407, and the needle head 5 is popped out of the needle tube 1;

at this time, the medical staff inserts the needle 5 into the blood vessel of the patient to collect blood, and the butterfly wing plate 4 rotates to enable one surface of the pasting block 401 to be pasted on the arm of the patient, and then the arm of the patient is fixed during blood collection.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A butterfly wing type safety type venous blood taking needle comprises a needle tube (1) and a blood transfusion tube (2), and is characterized in that one end of the blood transfusion tube (2) is fixedly connected with a sliding rod (6), the top of the sliding rod (6) is fixedly connected with a needle head (5), and one end, far away from the sliding rod (6), of the blood transfusion tube (2) is fixedly connected with a blood storage device (3);

the both sides of needle tubing (1) are rotated and are connected with axis of rotation (403), one side fixedly connected with fixed plate (402) of needle tubing (1) are kept away from axis of rotation (403), one end fixedly connected with butterfly pterygoid lamina (4) of axis of rotation (403) are kept away from fixed plate (402), sliding connection has plug-in components (404) on fixed plate (402), the lateral wall cover of fixed plate (402) is equipped with haulage rope (405), inside wall fixedly connected with diaphragm (406) of needle tubing (1), top fixedly connected with expanding spring (407) of diaphragm (406), one side fixedly connected with of butterfly pterygoid lamina (4) is a plurality of pastes piece (401).

2. A butterfly wing type safety type venous blood collection needle according to claim 1, characterized in that two sides of the needle tube (1) are provided with rotating grooves, and the rotating shaft (403) is rotatably connected with the needle tube (1) through the rotating grooves.

3. The butterfly-wing type safety venous blood collection needle according to claim 1, characterized in that a winding groove is formed on the outer side wall of the rotating shaft (403), one end of the pulling rope (405) is connected to the winding groove, and the other end of the pulling rope (405) is connected to the bottom of the sliding rod (6).

4. A butterfly wing type safety type venous blood collection needle according to claim 1, characterized in that the bottom and the top of the needle tube (1) are provided with first sliding grooves, and the needle (5) and the blood transfusion tube (2) are connected with the needle tube (1) in a sliding manner through the first sliding grooves.

5. A butterfly wing type safety type intravenous blood collection needle according to claim 1, characterized in that one end of the telescopic spring (407) is connected to the cross plate (406), and the other end of the telescopic spring (407) is connected to the bottom of the sliding rod (6).

6. A butterfly wing type safety type venous blood collection needle according to claim 1, characterized in that a connection port is opened on the sliding rod (6), the needle (5) is communicated with the blood transfusion tube (2) through the connection port, second sliding grooves are opened on two sides of the fixing plate (402), and the plug-in unit (404) fixes the fixing plate (402) and the needle tube (1) through the second sliding grooves.