Angiographic catheter structure

Abstract

The utility model discloses an angiographic catheter structure which comprises a hose and further comprises an arc-shaped end fixed to one end of the hose, a plurality of arc-shaped protruding points distributed at equal intervals are arranged on the outer wall of the hose, a plurality of liquid outlet holes distributed at equal intervals are formed in the outer wall of the hose, and a plurality of liquid flowing grooves distributed at equal intervals are formed in the outer wall of the hose. A drainage rubber column is arranged on the inner wall of one side of the arc end. When a contrast agent is injected through the hose, the contrast agent flows out from the liquid outlet holes in the surface of the hose, a certain gap can be reserved between the hose and the wall of a blood vessel after the hose is inserted into the blood vessel through the arranged arc-shaped convex points, the contrast agent conveniently flows into the blood vessel, and the contrast agent flows into the liquid flowing groove after flowing out from the liquid outlet holes. Compared with the mode that the contrast agent directly flows out from one end in the blood vessel after being directly injected from one end of the hose, the contrast agent injection tube reduces impact and stimulation on the blood vessel wall when the contrast agent flows out, and effectively reduces pain or fever during injection.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of contrast medium catheter, specifically to a contrast medium catheter structure. BACKGROUND

[0002] The contrast medium catheter is a kind of medical equipment, is used to guide contrast medium into blood vessel in angiography, produces contrast effect, and angiography is a kind of interventional examination method, mainly through arterial or venous puncture, and contrast medium is injected into the blood vessel of the part or viscera needing examination, to develop blood vessel, and the disease is observed and diagnosed.

[0003] The current catheter structure is straight-through structure at both ends, after catheter is inserted into blood vessel, contrast medium is injected from one end of catheter, and directly flows out from one end placed in blood vessel, has certain stimulation to blood vessel, leads to blood vessel dilatation, and contrast medium is relatively viscous, leads to certain pain or fever feeling when injecting, and the edge of the mouth of straight-through catheter is also easy to scratch blood vessel wall, and a part of catheter is placed outside human body when injecting contrast medium, is easy to drop outside operating table, is easy to be pressed and thus influences contrast medium flow. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a contrast medium catheter structure to solve the problems in the above background.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a contrast medium catheter structure, comprising: hose, still comprising: arc-shaped end head fixed to one end of hose, the outer wall of hose is equipped with a plurality of equidistant distribution arc-shaped convex points, and a plurality of equidistant distribution liquid outlet holes are opened in the outer wall of hose, the outer wall of hose is equipped with a plurality of equidistant distribution liquid flow grooves, and the inner wall of one side of arc-shaped end head is equipped with drainage rubber column, the outer portion of the other end of hose is equipped with anti-pressing shell, and the outer wall of both sides of anti-pressing shell is equipped with clamping assembly at both ends.

[0006] The arc-shaped convex point and liquid outlet hole are staggered distribution, and the connecting place of arc-shaped convex point, liquid outlet hole and the outer wall of hose is equipped with round angle.

[0007] The liquid flow groove connects liquid outlet hole together, and the edge of liquid flow groove is equipped with round angle.

[0008] The clamping assembly includes pivot, clamping plate rotationally installed on the outer portion of pivot and torsional spring installed on the pivot.

[0009] The outer wall bottom of one side of clamping plate is equipped with a plurality of equidistant distribution bevel gears.

[0010] Compared with prior art, the utility model has the beneficial effects that:

[0011] The utility model discloses a kind of contrast medium catheter structures, compared with the tube mouth surface of hose, arc end head is more smooth and round, can effectively avoid scratch blood vessel wall, when injecting contrast medium through hose, contrast medium flows out from the liquid outlet hole on the surface of hose, by the arc convex point set, hose can be left with certain gap between blood vessel wall after being inserted into blood vessel, facilitate contrast medium to flow into blood vessel, after contrast medium flows out from the liquid outlet hole, flow into liquid flow groove, flow along liquid flow groove, help viscous contrast medium to flow more smoothly, compared with contrast medium directly injected from one end of hose, directly flow out from one end placed in blood vessel, reduce the impact and stimulation of contrast medium when flowing out to blood vessel wall, effectively reduce the pain or fever feeling when injecting, by the protection of pressure shell set, hose can be protected to part placed outside human body, avoid the injection of contrast medium affected by pressure, and by the clamping assembly set, protection of pressure shell can be clamped on sterile surgical drape of operating table, avoid hose to hang down. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the external view structure diagram of the utility model;

[0013] Fig. 2 It is the sectional view structure diagram of the utility model;

[0014] Fig. 3 It is the clamping assembly structure diagram of the utility model.

[0015] In the drawing: 1, hose;2, arc end head;3, arc convex point;4, liquid outlet hole;5, liquid flow groove;6, drainage rubber column;7, protection of pressure shell;8, clamping assembly;801, pivot;802, clamping plate;803, torsional spring;804, bevel gear. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0017] Please refer to Figs. 1-3 The utility model provides a kind of contrast medium catheter structure, comprising: hose 1, further comprising: arc end head 2 fixed in one end of hose 1, hose 1 outer wall is equipped with multiple equidistant distribution arc convex points 3, and multiple equidistant distribution liquid outlet holes 4 are opened in the outer wall of hose 1, the outer wall of hose 1 is equipped with multiple equidistant distribution liquid flow grooves 5, and drainage rubber column 6 is arranged in the inner wall of one side of arc end head 2, protection of pressure shell 7 is installed outside the other end of hose 1, and clamping assembly 8 is installed in the outer wall of both sides of protection of pressure shell 7 both ends.

[0018] It needs to be explained here that one end of the hose 1 with the arc-shaped end 2 can be inserted into the blood vessel, and the arc-shaped end 2 is smoother than the surface of the hose 1, which can effectively avoid scratching the blood vessel wall. When the contrast agent is injected through the hose 1, the contrast agent flows out from the liquid outlet hole 4 on the surface of the hose 1, and the arc-shaped convex point 3 can leave a certain gap between the hose 1 and the blood vessel wall after being inserted into the blood vessel. This gap can facilitate the flow of contrast agent into the blood vessel. The liquid flow groove 5 is arranged, so that the contrast agent flowing out of the liquid outlet hole 4 can flow into the liquid flow groove 5 and flow along the liquid flow groove 5, which helps the viscous contrast agent to flow more smoothly. Compared with the contrast agent directly injected from one end of the hose 1 and directly flowing out from the end placed in the blood vessel, the impact and stimulation of the contrast agent on the blood vessel wall when flowing out are reduced, and the pain or fever during injection is effectively reduced. The drainage rubber column 6 is arranged to play a certain flow guiding role for the contrast agent flowing in the hose 1, facilitating the flow of the contrast agent out of the liquid outlet hole 4. The pressure-proof shell 7 is arranged to protect the part of the hose 1 placed outside the human body, avoiding the influence of pressure on the injection of the contrast agent. At the same time, the clamping assembly 8 is arranged to clamp the pressure-proof shell 7 on the sterile surgical drape of the operating table, avoiding the falling of the hose 1.

[0019] In a preferred embodiment, the arc-shaped convex points 3 and the liquid outlet holes 4 are staggered, and the arc-shaped convex points 3 and the liquid outlet holes 4 are provided with round corners at the connection with the outer wall of the hose 1.

[0020] It needs to be explained here that the arc-shaped convex points 3 can leave a certain gap between the hose 1 and the blood vessel wall after being inserted into the blood vessel, and the liquid outlet hole 4 can be in the gap.

[0021] In a preferred embodiment, the liquid flow grooves 5 are connected together, and the edges of the liquid flow grooves 5 are provided with round corners.

[0022] It needs to be explained here that the contrast agent flowing out of the liquid outlet hole 4 can flow into the liquid flow groove 5 and flow along the liquid flow groove 5, which helps the viscous contrast agent to flow more smoothly.

[0023] In a preferred embodiment, the clamping assembly 8 includes a rotating shaft 801, a clamping plate 802 rotatably installed outside the rotating shaft 801, and a torsional spring 803 installed on the rotating shaft 801.

[0024] It needs to be explained here that the sterile surgical drape can be clamped between the clamping plate 802 and the pressure-proof shell 7 by the clamping plate 802.

[0025] In a preferred embodiment, a plurality of bevel gears 804 are arranged at the bottom of one side of the outer wall of the clamping plate 802.

[0026] It needs to be explained here that the clamping effect on the sterile surgical drape is improved.

[0027] Working principle: one end of the hose 1 with the arc-shaped end head 2 can be inserted into the blood vessel, the arc-shaped end head 2 is smoother than the surface of the pipe opening of the hose 1, which can effectively avoid scratching the blood vessel wall, when injecting contrast agent through the hose 1, the contrast agent flows out from the liquid outlet hole 4 on the surface of the hose 1, the arc-shaped convex point 3 is arranged, so that the hose 1 leaves a certain gap with the blood vessel wall after being inserted into the blood vessel, which facilitates the flow of contrast agent into the blood vessel, the liquid flow groove 5 is arranged, so that the contrast agent flowing out of the liquid outlet hole 4 can flow into the liquid flow groove 5, and flow along the liquid flow groove 5, which helps the viscous contrast agent to flow more smoothly, compared with the contrast agent directly injected from one end of the hose 1 and directly flowing out from the end placed in the blood vessel, the impact and stimulation of the contrast agent on the blood vessel wall when flowing out is reduced, effectively reducing the pain or fever during injection, the drainage rubber column 6 is arranged, which can play a certain guiding effect on the contrast agent flowing in the hose 1, facilitating the contrast agent to flow out of the liquid outlet hole 4, the pressure-proof shell 7 is arranged, which can protect the part of the hose 1 placed outside the human body, avoid the influence of pressure on the injection of contrast agent, the clamping plate 802 is arranged, which can clamp the pressure-proof shell 7 on the sterile surgical drape of the operating table, avoiding the hose 1 from falling to the outside of the operating table.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A contrast catheter structure, comprising: a hose (1); characterized in that it further comprises an arc-shaped tip (2) fixed to one end of the hose (1), the outer wall of the hose (1) is provided with a plurality of arc-shaped convex points (3) distributed at equal intervals, and the outer wall of the hose (1) is provided with a plurality of liquid outlet holes (4) distributed at equal intervals, the outer wall of the hose (1) is provided with a plurality of liquid flow grooves (5) distributed at equal intervals, and the inner wall of one side of the arc-shaped tip (2) is provided with a drainage rubber column (6), the outer part of the other end of the hose (1) is provided with a pressure-proof shell (7), and the outer wall of both sides of the pressure-proof shell (7) is provided with clamping assemblies (8) at both ends.

2. A contrast catheter structure according to claim 1, wherein: The arc-shaped convex points (3) and the liquid outlet holes (4) are staggered, and the connection parts of the arc-shaped convex points (3), the liquid outlet holes (4) and the outer wall of the hose (1) are all provided with round corners.

3. The contrast catheter structure of claim 1, wherein: The liquid flow grooves (5) connect the liquid outlet holes (4) together, and the edges of the liquid flow grooves (5) are provided with round corners.

4. The contrast catheter structure of claim 1, wherein: The clamping assembly (8) comprises a rotating shaft (801), a clamping plate (802) rotatably installed on the outer part of the rotating shaft (801), and a torsional spring (803) installed on the rotating shaft (801).

5. A contrast catheter structure as defined in claim 4, wherein: The outer wall of one side of the clamping plate (802) is provided with a plurality of bevel gears (804) distributed at equal intervals.

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