CN214911769U

CN214911769U - Anti-blocking central venous catheter

Info

Publication number: CN214911769U
Application number: CN202120361537.6U
Authority: CN
Inventors: 狄红珍; 张莉
Original assignee: Affiliated Childrens Hospital of Soochow University
Current assignee: Affiliated Childrens Hospital of Soochow University
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-11-30
Anticipated expiration: 2031-02-09

Abstract

The utility model relates to an anti-blocking central venous catheter, which is applied to the technical field of medical appliances, solves the problems of unsmooth blood drawing or transfusion, blood backflow and easy blockage of a central venous catheter, and comprises a catheter body, a main cavity branch pipe, a side cavity branch pipe and a three-tube fixing seat, the main cavity branch pipe and the side cavity branch pipe are connected with one end of the catheter body, the three-pipe fixing seat is fixedly arranged at the connecting part of the catheter body and the main cavity branch pipe and the side cavity branch pipe, the interior of the catheter body is provided with a clapboard which divides the interior of the catheter body into two cavities, namely a main cavity and a side cavity, the main cavity and the side cavity are arranged in an equal cavity mode, the main cavity branch pipe is communicated with the main cavity, the side cavity branch pipe is communicated with the side cavity, side holes are formed in the main cavity and the side cavity at the ends far away from the three-tube fixing seat, and a three-way valve for preventing blood from flowing back is arranged at each side hole; has the effects of smooth blood drawing or transfusion and difficult blood backflow.

Description

Anti-blocking central venous catheter

Technical Field

The utility model discloses use in medical instrument technical field, especially relate to a prevent central vein catheterization of jam.

Background

The existing central venous catheterization is a common monitoring and treating means in clinic, a simple and painless method is provided for intravenous drug therapy, rapid transfusion and volume therapy of hemorrhagic shock in operation, nutrition of central veins outside the whole intestine, transfusion and blood supplies, blood sample collection, central venous pressure monitoring and the like through a fixed central venous catheterization inlet, and compared with a single-cavity central venous catheterization, a double-cavity central venous catheterization can simultaneously provide two independent transfusion passages, and the flow rate is higher, so that the clinical application way is very wide.

However, the main cavity and the side cavity in the central venous indwelling catheter of the existing double-cavity are arranged in unequal cavities, one is semicircular and crescent, blood can be drawn or transfused unsmoothly due to the unequal cavities of the main cavity and the side cavity, and besides, when stopping drawing blood or transfusing the patient, the blood in the body of the patient can flow back into the central venous indwelling catheter through the liquid outlet at one end of the central venous indwelling catheter embedded in the body of the patient, if the blood which flows back can not be discharged in time, the central venous indwelling catheter is easy to block after the blood is coagulated, and certain troubles are brought to medical care personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a prevent central vein catheterization of jam has solved the problem that the blood of drawing blood or infusion are not smooth, and blood backward flow easily blocks up central venous catheter.

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

the utility model provides a prevent central vein catheterization of jam, including pipe body, main cavity branch pipe, side chamber branch pipe and tee pipe fixing base, main cavity branch pipe, side chamber branch pipe are connected with the one end of pipe body, the fixed setting of tee pipe fixing base is in pipe body and main cavity branch pipe, side chamber branch pipe connection department, the inside of pipe body is provided with the baffle, the baffle becomes two cavities with the inside partition of pipe body, is main cavity, side chamber respectively, the equal chamber setting in main cavity and side chamber, main cavity branch pipe and main cavity intercommunication, side chamber branch pipe and side chamber intercommunication, the one end that three pipe fixing bases were kept away from to main cavity, side chamber all is provided with the side opening, every side opening department all is provided with the three-dimensional valve that prevents the blood reflux.

Further, all be provided with on main cavity branch pipe, the side chamber branch pipe and end a class spare, end a class spare and press from both sides the body including ending, the cross sectional shape that ends a class clamp body is the U-shaped, the inside that ends a class clamp body's a curb plate is provided with first briquetting, the inside that ends a class clamp body's another curb plate is provided with first briquetting complex second briquetting, the tip that ends a class clamp body's a curb plate is provided with the cardboard, the cross sectional shape of cardboard is triangle-shaped, the tip that ends a class clamp body's another curb plate is provided with the connecting plate, the connecting plate arc sets up, the one end of connecting plate is provided with the ka tai that is used for the block cardboard, it all is provided with the passageway that main cavity branch pipe or side cavity branch pipe passed on the bottom of a class clamp body and the connecting plate to end a class.

Further, be provided with a plurality of bar arch on the medial surface of card platform along the width direction of card platform, two adjacent bar archs form the joint groove that is used for joint cardboard.

Furthermore, a flexible pad is arranged on one end face of the three-tube fixing seat.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a prevent central vein catheterization of jam, pass through the baffle with the pipe body with its internal partitioning into two cavities, be the main cavity respectively, the side chamber, and the chamber setting such as main cavity and side chamber, this central vein catheterization is comparatively smooth at the in-process of drawing blood or infusion, be difficult for being blockked up, and at the main cavity, the one end that three pipe fixing bases were kept away from in the side chamber all is provided with the side opening, every side opening department all is provided with the three-dimensional valve that prevents the blood backward flow, can prevent through the three-dimensional valve that the blood from backward flowing the pipe originally internally, and then prevent that the pipe body from being blockked up by the blood that solidifies.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic view of the overall structure in the embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a cross-sectional view of the overall structure in an embodiment of the present invention;

fig. 4 is a schematic structural view of a flow stopping member in an embodiment of the present invention.

Wherein the reference numerals are as follows:

1. a catheter body; 2. a main chamber branch pipe; 3. a side chamber branch pipe; 4. a three-tube fixing seat; 5. a partition plate; 51. a main chamber; 52. a lateral cavity; 6. a side hole; 7. a three-way valve; 8. a flow stop member; 81. a flow stopping clip body; 82. a first pressing block; 83. a second pressing block; 84. clamping a plate; 85. a connecting plate; 86. clamping a platform; 87. a channel; 9. a strip-shaped bulge; 10. a clamping groove; 11. a flexible mat.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, fig. 2 and fig. 3, for the utility model provides an anti-clogging central venous indwelling catheter, which comprises a catheter body 1, a main lumen branch tube 2, a side lumen branch tube 3 and a three-tube fixing seat 4, the main lumen branch tube 2 and the side lumen branch tube 3 are connected with one end of the catheter body 1, the three-tube fixing seat 4 is fixedly arranged at the joint of the catheter body 1 and the main lumen branch tube 2 and the side lumen branch tube 3, the catheter body 1, the main lumen branch tube 2 and the side lumen branch tube 3 are fixed together by the three-tube fixing seat, and simultaneously, the central venous indwelling catheter can be fixedly arranged on the arm, thigh or back of a patient, the flexibility is high, a partition plate 5 is arranged inside the catheter body 1, the partition plate 5 divides the inside of the catheter body 1 into two chambers, namely a main chamber 51 and a side chamber 52, the main lumen branch tube 2 is communicated with the main lumen 51, the side lumen branch tube 3 is communicated with the side chamber 52, by arranging the main cavity 51 and the side cavity 52 of the catheter body 1 in the same cavity, blood drawing or transfusion is smooth, so that medical personnel can draw blood or transfuse the fluid conveniently, and the main cavity 51 and the side cavity 52 are not easy to block; keep away from the one end of tee pipe fixing base 4 at main cavity 51, side cavity 52 and all be provided with side hole 6, every side hole 6 department all is provided with the three-way valve 7 that prevents the blood backward flow, the theory of operation of three-way valve 7: when the negative pressure is generated, the valve is opened inwards to draw blood; when the pressure is positive, the valve is opened outwards, and infusion can be carried out; when the catheter is balanced, the valve is closed, so that blood can be prevented from flowing back into the catheter body 1, the catheter body 1 is further prevented from being blocked by coagulated blood, and the service time of central venous catheterization is prolonged.

Further, referring to fig. 3 and 4, the main chamber branch pipes 2 and the side chamber branch pipes 3 are both provided with a flow stopping member 8, the start or stop of the transfusion is controlled by the flow stopping member 8, the flow stopping member 8 includes a flow stopping clip body 81, the cross section of the flow stopping clip body 81 is U-shaped, a first pressing block 82 is arranged inside one side plate of the flow stopping clip body 81, a second pressing block 83 matched with the first pressing block 82 is arranged inside the other side plate of the flow stopping clip body 81, a clamping plate 84 is arranged at the end of one side plate of the flow stopping clip body 81, the cross section of the clamping plate 84 is triangular, a connecting plate 85 is arranged at the end of the other side plate of the flow stopping clip body 81, the connecting plate 85 is arc-shaped, one end of the connecting plate 85 is provided with a clamping platform 86 for clamping the clamping plate 84, the bottom end of the flow stopping clip body 81 and the connecting plate 85 are both provided with a channel 87 for the main chamber branch pipe 2 or the side chamber branch pipe 3 to pass through, when blood drawing or transfusion is stopped, the medical staff presses the clamping plate 84 to clamp the clamping plate 84 and the clamping table 86 together, and at the moment, the main cavity branch pipe 2 or the side cavity branch pipe 3 between the first pressing block 82 and the second pressing block 83 is in a closed state under the matching of the two; be provided with the protruding 9 of a plurality of bar along the width direction of ka tai 86 on the medial surface of ka tai 86, two adjacent protruding 9 of bar form and are used for the joint groove 10 of joint cardboard 84, can adjust the velocity of flow that enters into main cavity branch pipe 2 or the inside liquid of side chamber branch pipe 3 according to patient's condition with cardboard 84 joint in joint groove 10, improve the comfort level when patient uses central vein catheterization.

Further, referring to fig. 1, when the skin of the patient is pressed for a long time, blood is not circulated, and the skin of the patient at the pressed position is prone to pressure sore, so that a flexible cushion 11 is arranged on one end face of the three-tube fixing seat 4, the flexible cushion 11 protects the skin of the patient, and the skin of the patient is prevented from being pressed sore.

In summary, the following steps: separate into two cavities with its inside through baffle 5 with catheter body 1, be main cavity 51 respectively, side chamber 52, and the chamber setting such as main cavity 51 and side chamber 52, this central vein puts the pipe comparatively smoothly at the in-process of drawing blood or infusion, be difficult for blockking up, and at main cavity 51, the one end that three pipe fixing base 4 was kept away from to side chamber 52 all is provided with side hole 6, every side hole 6 department all is provided with the three-way valve 7 that prevents the blood backward flow, can prevent through three-way valve 7 that the blood from flowing back in catheter body 1, and then prevent that catheter body 1 from being blockked up by the blood of solidification.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a prevent central vein catheterization that central vein catheterization of jam prevents jam, includes pipe body, main cavity branch pipe, side chamber branch pipe and tee pipe fixing base, main cavity branch pipe, side chamber branch pipe are connected with the one end of pipe body, the fixed setting of tee pipe fixing base is in pipe body and main cavity branch pipe, side chamber branch pipe junction, its characterized in that, the inside of pipe body is provided with the baffle, the baffle becomes two cavities with the internal partitioning of pipe body, is main cavity, side chamber respectively, the setting of cavities such as main cavity and side chamber, main cavity branch pipe and main cavity intercommunication, side chamber branch pipe and side chamber intercommunication, the one end that three pipe fixing bases were kept away from to main cavity, side chamber all is provided with the side opening, every side opening department all is provided with the three-way valve that prevents the blood backward flow.

2. The anti-clogging central venous catheter according to claim 1, wherein the main lumen branch catheter and the side lumen branch catheter are both provided with a flow stopping member, the flow stopping member comprises a flow stopping clip body, the cross section of the flow stopping clip body is U-shaped, a first pressing block is arranged inside one side plate of the flow stopping clip body, a second pressing block matched with the first pressing block is arranged inside the other side plate of the flow stopping clip body, a clamping plate is arranged at an end of one side plate of the flow stopping clip body, the cross section of the clamping plate is triangular, a connecting plate is arranged at an end of the other side plate of the flow stopping clip body, the connecting plate is arc-shaped, a clamping table for clamping the clamping plate is arranged at one end of the connecting plate, and a passageway through which the main lumen branch catheter or the side lumen branch catheter passes is arranged at both the bottom end of the flow stopping clip body and the connecting plate.

3. The anti-clogging central venous catheter according to claim 2, wherein a plurality of strip-shaped protrusions are arranged on the inner end face of the clamping table along the width direction of the clamping table, and two adjacent strip-shaped protrusions form a clamping groove for clamping the clamping plate.

4. The anti-clogging central venous catheter of claim 1 or 3 wherein one end of the three-catheter securement hub is provided with a flexible pad.