CN211243342U

CN211243342U - Safe arterial blood catheter capable of preventing blood splashing

Info

Publication number: CN211243342U
Application number: CN201921872773.3U
Authority: CN
Inventors: 盛开
Original assignee: Lanzhou University
Current assignee: Lanzhou University
Priority date: 2019-11-02
Filing date: 2019-11-02
Publication date: 2020-08-14
Anticipated expiration: 2029-11-02

Abstract

The utility model relates to the technical field of medical equipment, in particular to a safe arterial blood placing tube capable of preventing blood from splashing, wherein an indwelling inner tube is connected with an indwelling outer tube, a steel needle is connected with a steel needle pin, the steel needle is arranged in the indwelling inner tube and the indwelling outer tube, the steel needle can be drawn out along with the steel needle pin, a side tube is arranged on the side of the indwelling outer tube and is integrally formed with the indwelling outer tube, the interior of the side tube is communicated, and a joint is connected with the tail end of the side tube through a hose and is integrally formed with the side tube; the first heparin cap is arranged at the rear end of the indwelling outer tube and can be penetrated by a steel needle, but blood cannot flow out; the fixing adhesive plaster is connected with the indwelling outer tube, and the indwelling outer tube penetrates through the fixing adhesive plaster. The side tube arranged on the arterial blood placing tube effectively shunts blood, and the fixing adhesive plaster arranged on the arterial blood placing tube has the functions of wiping and fixing, prevents the dislocation of the indwelling needle caused by infection and wrist movement, and has wide application value clinically.

Description

Safe arterial blood catheter capable of preventing blood splashing

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to safe, can prevent arterial blood of blood splash and put pipe.

Background

Clinically, need real-time supervision blood pressure to critically ill patient, and need extract blood at the in-process of treatment, medical personnel can carry out invasive blood pressure detection at patient's radial artery, blood pressure check time is of a specified duration, if puncture many times, it is great to the injury of blood vessel, puncture many times and increased medical personnel's work load, puncture many times simultaneously and increased patient's medical expenses, therefore, the researcher has developed the artery and has kept somewhere the needle, be used for patient's arterial blood pressure detection and blood extraction specially. However, due to the special position of the radial artery, the puncture is generally performed on the wrist, the detection result is affected by frequent and careless movements at the position, and the existing indwelling needles have the problem of poor fixation.

The utility model (CN201020683464.4) discloses an artery puncture needle for detecting the blood pressure in the artery, which comprises a stainless steel needle 1, an indwelling needle 2, a pressure measuring catheter 3 and a needle tube sleeve 4, wherein the stainless steel needle comprises a needle body 11, a needle seat 12 and a handle 13, a blood return groove 14 is arranged on the wall of the needle body tube, and the tail end of the needle seat 12 is provided with a tail plug 15; the indwelling needle 2 consists of an indwelling needle tube 21, a catheter seat 22 and a rubber check valve 23, wherein the indwelling needle tube 21 is a transparent plastic tube, the catheter seat 22 is provided with a side tube 24 which is connected with the pressure measuring catheter 3, the pressure measuring catheter is provided with a hemostatic clamp 31, and the rubber check valve 23 is arranged at the rear edge of a side tube opening in the catheter seat; the needle tube sleeve 4 is sleeved outside the indwelling needle tube. The utility model discloses simple structure, convenient to use can effectively improve the success rate of arteriopuncture catheterization, alleviates patient's misery and economic burden to the pollution because of blood excessive causes has been avoided. However, the technical proposal does not solve the problems of blood splashing and fixing of the indwelling needle, and the stability of the indwelling needle is affected by the unintentional rotation of the wrist of the patient.

Disclosure of Invention

To the technical problem, the utility model provides a safe, can prevent the arterial blood of blood splash and put the pipe, arterial blood put the pipe can prevent the blood splash, reduce blood pollution and improve the success rate that the pipe was kept somewhere to the artery. The technical scheme of the utility model as follows:

the arterial blood indwelling tube comprises a steel needle 1, an indwelling inner tube 2, an indwelling outer tube 3 and a steel needle pin 5, wherein the indwelling inner tube 2 is in a hollow cylindrical shape and is connected with the indwelling outer tube 3, the indwelling outer tube 3 is hollow and is a passage for the steel needle 1, blood or medicines, the steel needle 1 and the steel needle pin 5 are integrally formed, the steel needle 1 penetrates through the indwelling outer tube 3 and is arranged in the indwelling inner tube 2, the steel needle 1 can be drawn out from the indwelling inner tube 2 and the indwelling outer tube 3 along with the steel needle pin 5, and the arterial blood indwelling tube is further provided with a side tube 4, a first heparin cap 6, a connector 8, a catheter 9 and a fixing adhesive tape 7; the side tube 4 is hollow, is arranged on the side wall of the indwelling outer tube 3, is integrally formed with the indwelling outer tube 3, and is communicated with the inside, the joint 8 is a three-way joint, one end of the joint is connected with the side tube 4 through a catheter 9, the other end of the joint is closed through a closing head 11, the third end of the joint is closed through a second heparin cap 10, and heparin sodium is placed in the joint and can be used as a blood or medicine passage; the first heparin cap 6 is arranged at the rear end of the indwelling outer tube 3 and can be used for the steel needle 1 to pass through, but the liquid cannot flow out; the fixed adhesive plaster 7 is connected with the front end of the indwelling outer tube 3, a notch is arranged on the fixed adhesive plaster 7, the indwelling outer tube 3 passes through the fixed adhesive plaster 7 through the notch, so that the indwelling inner tube 2 covers the fixed adhesive plaster 7, and the indwelling outer tube 3 is exposed on the fixed adhesive plaster 7; the fixing adhesive tape 7 is composed of a waterproof layer 701, a fixing layer 702, an adhesive layer 703 and a stripping layer 704, the waterproof layer 701, the fixing layer 702, the adhesive layer 703 and the stripping layer 704 are sequentially arranged from top to bottom, and the stripping layer 704 is arranged on one surface close to the skin. The area of the waterproof layer 701 is larger than or equal to that of the fixing layer 702 and larger than or equal to that of the adhesion layer 703 and larger than or equal to that of the stripping layer 704, so that external water is prevented from entering the interior carelessly to cause infection.

Preferably, the waterproof layer 701, the fixing layer 702 and the adhesion layer 703 are made of transparent materials, so that the state of the steel needle 1 can be observed from the upper part, and the steel needle 1 is prevented from puncturing blood vessels.

Preferably, the fixing layer 702 is made of a rigid material, and after the patient is applied, the fixing layer 702 made of the rigid material can prevent the patient from bending the elbow to cause the drop of the indwelling tube, and can remind the patient not to easily withdraw the elbow.

Preferably, a sponge layer or a cotton layer is further disposed between the adhesive layer 703 and the peeling layer 704, and after the peeling layer 704 is peeled off, the sponge layer or the cotton layer is exposed to the outside and can be used for wiping blood leakage caused by insertion of an indwelling needle into an artery of a patient to prevent infection, and after the sponge layer or the cotton layer is peeled off from the adhesive layer 703 after wiping, the adhesive layer 703 is attached to the skin.

Preferably, the catheter 9 is provided with a line clamp 12 to prevent blood from splashing or liquid from entering when not needed.

The utility model has the advantages that: the side tube 4 arranged in the arterial blood catheterization effectively shunts blood and reduces blood splashing; the first heparin cap 6 arranged on the arterial blood catheterization tube exists in a closed state, so that blood splashing is reduced to the maximum extent; and the fixing adhesive plaster 7 arranged on the arterial blood catheter has the functions of wiping and fixing, so that the dislocation of the indwelling needle caused by infection and wrist movement is prevented.

Drawings

FIG. 1 is a schematic view of a safe, splash-proof arterial blood catheter

1. A steel needle; 2. the inner tube is left; 3. the outer tube is kept; 4. a side hole; 5. a steel pin; 6. a first heparin cap; 7. fixing adhesive tapes; 701. an outer layer; 702. a waterproof layer; 703. a fixed layer; 704. a peeling layer; 8. a joint; 9. a conduit; 10. a second heparin cap; 11. a closing head; 12. pipeline clamp

FIG. 2 is a top view of a safe, splash-proof arterial blood cannula

Fig. 3 a cross-sectional view of a fixing tape 7

Detailed Description

The technical solution of the present invention will be described in detail with reference to the following specific examples, but the following examples do not limit the scope of the present invention.

EXAMPLE I A safe arterial blood catheter that prevents blood splash

The arterial blood indwelling tube comprises a steel needle 1, an indwelling inner tube 2, an indwelling outer tube 3 and a steel needle pin 5, wherein the indwelling inner tube 2 is in a hollow cylindrical shape and is connected with the indwelling outer tube 3, the indwelling outer tube 3 is hollow and is a passage for the steel needle 1, blood or medicines, the steel needle 1 and the steel needle pin 5 are integrally formed, the steel needle 1 penetrates through the indwelling outer tube 3 and is arranged in the indwelling inner tube 2, the steel needle 1 can be drawn out from the indwelling inner tube 2 and the indwelling outer tube 3 along with the steel needle pin 5, and the arterial blood indwelling tube is further provided with a side tube 4, a first heparin cap 6, a connector 8, a catheter 9 and a fixing adhesive tape 7; the side tube 4 is hollow, is arranged on the side wall of the indwelling outer tube 3, is integrally formed with the indwelling outer tube 3, and is communicated with the inside, the joint 8 is a three-way joint, one end of the joint is connected with the side tube 4 through a catheter 9, the other end of the joint is closed through a closing head 11, the third end of the joint is closed through a second heparin cap 10, and heparin sodium is placed in the joint and can be used as a blood or medicine passage; the first heparin cap 6 is arranged at the rear end of the indwelling outer tube 3 and can be used for the steel needle 1 to pass through, but the liquid cannot flow out; the fixed adhesive plaster 7 is connected with the front end of the indwelling outer tube 3, a notch is arranged on the fixed adhesive plaster 7, the indwelling outer tube 3 passes through the fixed adhesive plaster 7 through the notch, so that the indwelling inner tube 2 covers the fixed adhesive plaster 7, and the indwelling outer tube 3 is exposed on the fixed adhesive plaster 7; the fixing adhesive tape 7 is composed of a waterproof layer 701, a fixing layer 702, an adhesive layer 703 and a stripping layer 704, the waterproof layer 701, the fixing layer 702, the adhesive layer 703 and the stripping layer 704 are sequentially arranged from top to bottom, and the stripping layer 704 is arranged on one surface close to the skin. The area of the waterproof layer 701 is larger than or equal to that of the fixing layer 702 and larger than or equal to that of the adhesion layer 703 and larger than or equal to that of the stripping layer 704. The waterproof layer 701, the fixing layer 702 and the adhesion layer 703 are all made of transparent materials. The fixing layer 702 is made of a hard material, and after the patient is pasted, the fixing layer 702 made of the hard material can prevent the phenomenon that the indwelling tube falls off due to the bending of the elbow of the patient, and can remind the patient not to easily withdraw and bend the elbow. A sponge layer or a cotton layer is arranged between the adhesive layer 703 and the stripping layer 704, which can wipe off the blood seepage caused by the insertion of the indwelling needle into the artery of the patient and prevent the infection. The catheter 9 is provided with a line clamp 12 which prevents blood from splashing or liquid from entering when not needed.

EXAMPLE two, a safe arterial blood catheter that prevents blood splash

When a critically ill patient needs to use arterial catheterization to detect blood pressure clinically, firstly, a conduit 9 is closed by a pipeline clamp 12, a closing head 11 is taken down and connected with normal saline, and a second heparin cap 10 is in a closed state; secondly, the artery is punctured by placing a tube, when the remaining outer tube 3 has blood returning after the steel needle 1 and the remaining inner tube 2 are punctured into the blood vessel cavity, the puncture is successful, the stripping layer 704 of the fixing adhesive plaster 7 covering the upper part of the steel needle 1 is removed, and the fixing adhesive plaster is adhered to the skin through the adhesive layer 703; thirdly, the second heparin cap 10 is opened, the tail end of the second heparin cap is connected with a blood pressure detector, the pipeline clamp 12 is opened, pressurized normal saline enters the guide pipe 9, the steel needle pin 5 is slowly pulled out, the steel needle 1 is pulled out of the first heparin cap 6 along with the steel needle pin 5, the first heparin cap 6 is quickly closed, and the normal saline presses blood to prevent the blood from splashing; and fourthly, the fixing adhesive tape 7 arranged at the lower part of the indwelling outer tube 3 is pressed close to the surface of the skin, the cotton layer arranged on the stripping layer 704 wipes the blood flowing out due to puncture completely, the stripping layer 704 is removed, and the adhesive layer 703 is adhered to the surface of the skin, so that the operation is finished. The fixing layer 702 of the fixing plaster 7 may prevent the patient from bending the wrist/elbow.

Claims

1. The utility model provides a safe, can prevent arterial blood of blood splash and put pipe, arterial blood put pipe include steel needle (1), keep somewhere inner tube (2), keep somewhere outer tube (3), steel needle round pin (5), keep somewhere inner tube (2) be hollow circular cylinder, with keep somewhere outer tube (3) and be connected, keep somewhere outer tube (3) cavity, steel needle (1) and steel needle round pin (5) integrated into one piece, steel needle (1) run through and keep somewhere outer tube (3) and place in inner tube (2), keep somewhere steel needle (1) can follow steel needle round pin (5) and keep somewhere inner tube (2) and keep somewhere outer tube (3) and take out, its characterized in that:

the arterial blood catheterization device is also provided with a side tube (4), a first heparin cap (6), a connector (8), a catheter (9) and a fixing adhesive plaster (7);

the side pipe (4) is hollow, is arranged on the side wall of the indwelling outer pipe (3), is integrally formed with the indwelling outer pipe (3), and is communicated with the inside, the joint (8) is a three-way joint, one end of the joint is connected with the side pipe (4) through a catheter (9), the other end of the joint is sealed through a sealing head (11), and the third end of the joint is sealed through a second heparin cap (10);

the first heparin cap (6) is arranged at the rear end of the indwelling outer tube (3) and can be penetrated by the steel needle (1), but liquid cannot flow out;

the fixing adhesive plaster (7) is connected with the front end of the indwelling outer tube (3), a notch is arranged on the fixing adhesive plaster (7), the indwelling outer tube (3) penetrates through the fixing adhesive plaster (7) through the notch, so that the indwelling inner tube (2) covers under the fixing adhesive plaster (7), and the indwelling outer tube (3) is exposed on the fixing adhesive plaster (7); the fixing adhesive tape (7) is composed of a waterproof layer (701), a fixing layer (702), an adhesion layer (703) and a stripping layer (704), the waterproof layer (701), the fixing layer (702), the adhesion layer (703) and the stripping layer (704) are sequentially arranged from top to bottom, and the stripping layer (704) is arranged on one surface close to the skin.

2. The arterial blood catheterization of claim 1, wherein the area of the waterproof layer (701) is larger than that of the fixing layer (702) and larger than that of the adhesion layer (703) and larger than that of the stripping layer (704).

3. The arterial blood catheterization according to claim 2, characterized in that the waterproof layer (701), the fixing layer (702) and the adhesive layer (703) are made of transparent materials.

4. The arterial blood catheterization of claim 3, characterized in that the fixation layer (702) is made of a rigid material.

5. The arterial blood catheterization of claim 1, wherein a sponge layer or a cotton layer is further arranged between the adhesion layer (703) and the peeling layer (704).

6. The arterial blood catheterization according to claim 1, characterized in that a line clamp (12) is arranged on the catheter (9).