CN215017511U

CN215017511U - Indwelling blood taking needle

Info

Publication number: CN215017511U
Application number: CN202120863845.9U
Authority: CN
Inventors: 李瑶玲; 卢梅英; 冯毅
Original assignee: Guigang City People's Hospital
Current assignee: Guigang City People's Hospital
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-07
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to an indwelling blood taking needle, which comprises an indwelling needle main body, a transfusion tube, a heparin cap and a blood sampling part, wherein the indwelling needle main body comprises a catheter seat, a needle seat and a puncture steel needle, a cavity which runs through the catheter seat is arranged in the catheter seat, a catheter which extends out of the catheter seat is arranged in the cavity, one end of the puncture steel needle penetrates out of the catheter from the cavity, the other end of the puncture steel needle is connected with the needle seat, and the needle seat is detachably connected with the catheter seat; the transfusion tube is fixedly connected with the side wall of the catheter seat, and the catheter seat is communicated with the blood sampling part through the heparin cap. The catheter of the catheter seat is left in the blood vessel by adopting a vein remaining needle technology, the blood sampling part is utilized to draw blood for a patient, and the infusion tube is connected with an infusion apparatus to realize infusion operation. Avoid repeated puncture, improve medical personnel's work efficiency.

Description

Indwelling blood taking needle

Technical Field

The utility model relates to a blood taking needle particularly, relates to an indwelling blood taking needle.

Background

Venous blood sampling is a common nursing operation in clinical nursing work, and is also one of the main technologies for assisting doctors in diagnosing and treating diseases. Most hospitals use disposable blood taking needles during blood taking at present, and the disposable blood taking needles are discarded immediately after the blood taking is finished.

However, many patients need to be transfused after blood sampling, and puncture blood sampling needs to be carried out again, which not only obviously increases the pain of repeated puncture of the patients, but also increases the workload of medical care personnel.

Therefore, a design of a indwelling blood lancet is required to avoid repeated puncture.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a remaining blood taking needle is provided to avoid repeated puncture.

In order to solve the technical problem, the utility model adopts the following technical scheme:

an indwelling blood taking needle comprises an indwelling needle body, a liquid conveying pipe, a heparin cap and a blood taking part, wherein the indwelling needle body comprises a catheter seat, a needle seat and a puncture steel needle, a cavity penetrating through the catheter seat is arranged in the catheter seat, a catheter extending out of the catheter seat is arranged in the cavity, one end of the puncture steel needle penetrates out of the catheter from the cavity, the other end of the puncture steel needle is connected with the needle seat, and the needle seat can be inserted into the cavity; the transfusion tube is fixedly connected with the side wall of the catheter seat, and the catheter seat is communicated with the blood sampling part through the heparin cap.

As a further improvement of the above technical solution:

the pipe seat is equipped with the external screw thread, and the heparin cap is equipped with the internal thread that matches with the external screw thread, and after pulling out the needle file, heparin cap and pipe seat threaded connection, and the heparin cap shelters from in cavity port department. The heparin cap is detachably connected with the catheter holder. The opening of the one end of cavity can be sealed to the heparin cap, avoids the bacterium to get into in the cavity.

Furthermore, the blood sampling part comprises a vein puncture needle head, a blood transfusion hose and a sampling needle head, two ends of the blood transfusion hose are respectively communicated with the vein puncture needle head and the sampling needle head, and the vein puncture needle head is inserted into the catheter through a heparin cap. When drawing blood, insert the vein puncture syringe needle in the pipe, because the vein puncture syringe needle is arranged in the pipe, directly draw blood from the pipe during drawing blood, reduced the position that blood passed through the liquid medicine and flowed through to reduce and avoided more liquid medicine to get into in the blood even, thereby improved blood purity and chemical examination degree of accuracy.

Furthermore, the needle seat is provided with a clamping block, the end face of the catheter seat is provided with a clamping groove, and after the needle seat is inserted into the cavity, the clamping block is clamped into the clamping groove. Avoid the needle file to rotate, aggravate patient's painful sense.

Furthermore, the front surface and the back surface of the clamping block are both provided with protrusions which are semicircular, the inner wall of the clamping groove is provided with a fixing groove relative to the positions of the protrusions, and after the clamping block is inserted into the clamping groove, the protrusions are clamped into the fixing groove. The needle seat and the catheter seat are connected more stably.

The suspended end of the infusion tube is in threaded connection with an adapter, and the infusion tube is connected with an infusion apparatus through the adapter. Is convenient to be connected with an infusion apparatus.

The catheter seat is provided with double fins, and one side of each double fin is covered with an adhesive layer. The catheter seat is fixed on the skin of a patient by the adhesive layer on the double wings, so that medical staff can fix the catheter conveniently, and the situation that the catheter rotates in a blood vessel or slides out of the blood vessel to aggravate the pain of the patient is avoided.

Furthermore, the double-wing piece comprises a first wing piece and a second wing piece, the second wing piece is fixedly installed on the catheter base, an annular sliding groove is formed in the outer wall of the catheter base, a sliding block is arranged on one side of the first wing piece, and the sliding block is slidably inserted into the annular sliding groove. When the puncture steel needle is used for puncturing the blood vessel, the second wing panel is rotated to enable the second wing panel to be attached to the first wing panel, so that the puncture angle is conveniently controlled, and the needle insertion is easier. After the venipuncture is completed, the second wing piece is rotated, the first wing piece and the second wing piece are respectively positioned on two sides of the catheter base and are attached to the skin of a patient, the catheter base is prevented from sliding down, the catheter can be effectively prevented from tilting, and the pain of the patient is relieved.

The indwelling blood taking needle further comprises a hemostatic patch, the hemostatic patch is connected with the infusion tube through an easy-breaking piece, and the easy-breaking piece is provided with an easy-tearing line for separating the hemostatic patch. After the indwelling blood taking needle is removed, the hemostatic patch can be torn off and stuck to the wound, so that hemostasis is facilitated.

Compared with the prior art, the utility model has the advantages that:

1. the catheter of the catheter seat is left in the blood vessel by adopting a vein remaining needle technology, the blood sampling part is utilized to draw blood for a patient, and the infusion tube is connected with an infusion apparatus to realize infusion operation. Avoid repeated puncture, improve medical personnel's work efficiency.

2. The blood sampling part is communicated with the catheter seat through a heparin cap, and the infusion apparatus is communicated with the catheter seat through an infusion tube. The interfaces of blood drawing and transfusion are different, so that more liquid medicine is reduced from entering blood, and the blood purity and the test accuracy are improved.

Drawings

FIG. 1 is a structural view of an indwelling blood lancet.

FIG. 2 is a sectional view of an indwelling blood lancet.

FIG. 3 is a structural view of an indwelling needle body.

Fig. 4 is a connection state diagram of the needle seat and the puncture steel needle.

Description of reference numerals:

1. a main body of the indwelling needle; 2. a transfusion tube; 3. a heparin cap; 4. a blood collection part; 5. a crossover sub; 6. a double wing panel; 7. a hemostatic plaster; 8. a breakable piece; 11. puncturing a steel needle; 12. a catheter hub; 13. a needle seat; 14. a cavity; 15. a conduit; 16. a clamping block; 17. a protrusion; 41. a venipuncture needle; 42. a blood transfusion hose; 43. a sampling needle head; 61. a second fin; 62. a first fin; 63. a slider; 64. an annular chute; 81. and (4) easily tearing the line.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the present invention, taken in conjunction with the accompanying drawings and the detailed description, is given in a non-limiting manner.

As shown in fig. 1 to 4, the indwelling needle of the present embodiment includes an indwelling needle body 1, an infusion tube 2, a heparin cap 3 and a blood sampling component 4, the indwelling needle body 1 includes a catheter holder 12, a needle holder 13 and a puncture steel needle 11, a cavity 14 penetrating through the catheter holder 12 is provided in the catheter holder 12, a catheter 15 extending out of the catheter holder 12 is provided in the cavity 14, one end of the puncture steel needle 11 penetrates out of the catheter 15 from the cavity 14, the other end is connected with the needle holder 13, and the needle holder 13 can be inserted into the cavity 14; the infusion tube 2 is fixedly connected with the side wall of the catheter base 12, and the catheter base 12 is communicated with the blood sampling component 4 through the heparin cap 3. Catheter holder 12 is equipped with the external screw thread, and heparin cap 3 is equipped with the internal thread that matches with the external screw thread, and after extracting needle file 13, heparin cap 3 and catheter holder 12 threaded connection, and heparin cap 3 shelters from at cavity 14 port department. The blood collection part 4 comprises a venipuncture needle 41, a blood transfusion hose 42 and a sampling needle 43, wherein both ends of the blood transfusion hose 42 are respectively communicated with the venipuncture needle 41 and the sampling needle 43, and the venipuncture needle 41 is inserted into the catheter 15 through the heparin cap 3. The needle holder 13 is provided with clamping blocks 16, the end face of the catheter holder 12 is provided with a clamping groove, and after the needle holder 13 is inserted into the cavity 14, the clamping blocks 16 are clamped into the clamping groove. The front surface and the back surface of the clamping block 16 are both provided with protrusions 17, the protrusions 17 are semicircular, fixing grooves are formed in the inner walls of the clamping grooves corresponding to the protrusions 17, and after the clamping block 16 is inserted into the clamping grooves, the protrusions 17 are clamped into the fixing grooves. An indwelling blood taking needle further comprises a hemostatic patch 7, the hemostatic patch 7 is connected with the infusion tube 2 through an easy-breaking piece 8, and the easy-breaking piece 8 is provided with an easy-tearing line 81 for separating the hemostatic patch 7.

Wherein, the suspended end of the transfusion tube 2 is connected with a conversion joint 5 by screw thread, and the transfusion tube 2 is connected with a transfusion device by the conversion joint 5. The catheter seat 12 is provided with a double-wing piece 6, and one surface of the double-wing piece 6 is covered with an adhesive layer. The double-wing 6 comprises a first wing 62 and a second wing 61, the second wing 61 is fixedly installed on the catheter base 12, the outer wall of the catheter base 12 is provided with an annular sliding groove 64, one side of the first wing 62 is provided with a sliding block 63, and the sliding block 63 is slidably inserted into the annular sliding groove 64.

For the use of this example, reference is made to the following steps:

in use, the puncture steel needle 11 extending out of the catheter 15 is first punctured into a selected blood vessel. Secondly, after the puncture is successful, the catheter seat 12 is pressed by hand, the needle seat 13 is pulled forcefully, the clamping block 16 is separated from the clamping groove, the puncture steel needle 11 is withdrawn slowly, and the catheter 15 of the catheter seat 12 is left in the blood vessel. Again, the heparin cap 3 is placed over the catheter hub 12 and threaded thereto. Finally, the venipuncture needle 41 is inserted into the catheter 15 through the heparin cap 3, and blood can be drawn by the blood drawing member 4. When transfusion is needed, the transfusion device is directly communicated with the transfusion tube 2 through the adapter 5, so that transfusion is realized.

Claims

1. An indwelling blood taking needle, characterized in that: the indwelling needle comprises an indwelling needle main body (1), an infusion tube (2), a heparin cap (3) and a blood sampling component (4), wherein the indwelling needle main body (1) comprises a catheter seat (12), a needle seat (13) and a puncture steel needle (11), a cavity (14) penetrating through the catheter seat (12) is arranged in the catheter seat (12), a catheter (15) extending out of the catheter seat (12) is arranged in the cavity (14), one end of the puncture steel needle (11) penetrates out of the catheter (15) through the cavity (14), the other end of the puncture steel needle is connected with the needle seat (13), and the needle seat (13) can be inserted into the cavity (14); the infusion tube (2) is fixedly connected with the side wall of the catheter seat (12), and the catheter seat (12) is communicated with the blood sampling component (4) through the heparin cap (3).

2. An indwelling blood lancet according to claim 1, wherein: catheter holder (12) are equipped with the external screw thread, and heparin cap (3) are equipped with the internal thread that matches with the external screw thread, extract needle file (13) back, and heparin cap (3) and catheter holder (12) threaded connection, and heparin cap (3) shelter from in cavity (14) port department.

3. An indwelling blood lancet according to claim 2, wherein: the blood sampling part (4) comprises a vein puncture needle head (41), a blood transfusion hose (42) and a sampling needle head (43), two ends of the blood transfusion hose (42) are respectively communicated with the vein puncture needle head (41) and the sampling needle head (43), and the vein puncture needle head (41) is inserted into the catheter (15) through the heparin cap (3).

4. An indwelling blood lancet according to claim 3, wherein: the needle base (13) is provided with a clamping block (16), the end face of the catheter base (12) is provided with a clamping groove, and after the needle base (13) is inserted into the cavity (14), the clamping block (16) is clamped into the clamping groove.

5. An indwelling blood lancet according to claim 4, wherein: the fixture block (16) is provided with a protrusion (17), the protrusion (17) is semicircular, a fixing groove is formed in the inner wall of the clamping groove relative to the position of the protrusion (17), and after the fixture block (16) is inserted into the clamping groove, the protrusion (17) is clamped into the fixing groove.

6. An indwelling blood lancet according to claim 1, wherein: the suspended end of the infusion tube (2) is in threaded connection with a conversion joint (5), and the infusion tube (2) is connected with an infusion apparatus through the conversion joint (5).

7. An indwelling blood lancet according to claim 1, wherein: the catheter seat (12) is provided with double fins (6), and one surface of each double fin (6) is covered with an adhesive layer.

8. An indwelling blood lancet according to claim 7, wherein: the double-wing piece (6) comprises a first wing piece (62) and a second wing piece (61), the second wing piece (61) is fixedly installed on the catheter base (12), an annular sliding groove (64) is formed in the outer wall of the catheter base (12), a sliding block (63) is arranged on one side of the first wing piece (62), and the sliding block (63) can be slidably inserted into the annular sliding groove (64).

9. An indwelling blood lancet according to claim 1, wherein: the hemostatic patch (7) is connected with the infusion tube (2) through a breakable piece (8), and the breakable piece (8) is provided with an easy-to-tear line (81) for separating the hemostatic patch (7).