CN213430452U - Artery blood vessel root stop-jump needle convenient for observing puncture position - Google Patents

Abstract

The utility model discloses an artery vessel root jumping stopping needle convenient for observing a puncture position, which comprises an outer tube and a core tube, wherein one end of the outer tube is detachably provided with an insertion end, the other end of the outer tube is coaxially provided with an external thread connecting tube, and a sealing cap is arranged on the external thread connecting tube in a sealing and screwed manner; the core pipe is inserted into the outer pipe, one end of the core pipe is provided with a beveled tip extending to the outside of the insertion end, the other end of the core pipe abuts against the inner side surface of the top of the sealing cap, and a window close to the insertion end is arranged on the pipe body of the core pipe in the outer pipe; the outer tube is colorless transparent material, and the core pipe is medical stainless steel material. Through set up the window that is close to the inserting end on the body that is located the outer tube at the core pipe, when the most advanced arteria vessel wall of impaling of scarf of core pipe, instantaneous have blood to emerge from the window in, compare in the traditional case of bleeding through observing the core pipe other end and judge whether the most advanced arterious blood vessel wall of stabbing of scarf, show the ageing of having improved surgical operation.

Description

Artery blood vessel root stop-jump needle convenient for observing puncture position

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to artery vessel root stop and jump needle convenient to observe puncture position.

Background

With the continuous improvement of living standard and the change of dietary structure of Chinese people, the incidence of cardiovascular diseases is gradually increased, and heart diseases become the first killer among the mortality of various diseases. The number of heart operations performed annually in China is over 20 million at present, and is increasing year by year. Whether coronary heart disease bypass surgery, valve replacement surgery or large blood vessel surgery is performed, the heart stops beating, extracorporeal circulation is needed to maintain normal physiological characteristics, namely metabolism is completed under the action of an artificial heart-lung machine and an oxygenation chamber, and after the surgery is completed, fresh blood containing oxygen is refluxed to a human body through an aorta intubation tube. The operation is started, firstly, anesthetic is infused into the heart through the artery vessel root jumping-stopping needle, so that the heart stops jumping or the jumping frequency is reduced.

At present, the artery root that uses clinically stops jumping the needle and is mostly the straight tube structure, include the outer tube and run through the core pipe of pegging graft in the outer tube, wherein the outer tube is transparent material, the medical stainless steel material is adopted to the core pipe more, the effect of core pipe lies in the water conservancy diversion liquid medicine or blood of impaling the vascular wall, the effect of outer tube. The artery blood vessel root that uses at present home stops jumping needle's core pipe one end is equipped with the most advanced structure of scarf, pierces the most advanced structure of core pipe during operation through the vascular wall and inserts blood vessel inside, then whether has blood to emerge through observing the core pipe other end and judges whether the vascular wall is pierced through. Since the core tube is generally more than 15cm, whether the puncture position is proper or not is judged by whether blood emerges from the other end of the core tube, and certain hysteresis is provided, so that the timeliness of the operation is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide an artery vessel root jumping stopping needle convenient for observing the puncture position, a window close to an insertion end is arranged on a tube body of a core tube positioned in an outer tube, when the tip of the oblique section of the core tube pierces the artery vessel wall, blood can be instantly effused from the window, and compared with the traditional case that the tip of the oblique section of the core tube pierces the artery vessel wall by observing the bleeding condition of the other end of the core tube, the utility model can judge whether the tip of the oblique section pierces the artery vessel wall, thereby obviously improving the timeliness of the operation; the arterial vessel root jumping-stopping needle is simple and reasonable in structural design, high in preparation implementation feasibility and strong in practicability.

In order to achieve the purpose, the technical scheme of the utility model is to design an artery vessel root jumping stopping needle convenient for observing the puncture position, which comprises an outer tube and a core tube, wherein one end of the outer tube is detachably provided with an insertion end, the other end of the outer tube is coaxially provided with an external thread connecting tube, and a sealing cap is hermetically and spirally connected to the external thread connecting tube; the core tube is inserted into the outer tube, one end of the core tube is provided with a beveled tip extending to the outside of the insertion end, the other end of the core tube abuts against the inner side surface of the top of the sealing cap, and a window close to the insertion end is formed in the tube body of the core tube positioned in the outer tube; the outer tube is colorless transparent material, the core pipe is medical stainless steel material.

The utility model discloses artery vessel root stops jumping needle, through set up the window that is close to inserting the end on the body that the core pipe is located the outer tube, when the scarf point end of core pipe pierces the artery vascular wall, have blood to emerge from the window instantaneously, compare and judge whether the scarf point end punctures artery blood vessel wall through observing the bloody condition of the other end of core pipe in the tradition, the timeliness of operation has been obviously improved; the arterial vessel root jumping-stopping needle is simple and reasonable in structural design, high in preparation implementation feasibility and strong in practicability.

The preferable technical scheme is that the distance between the center of the window and the end part of the tip of the chamfer is 30-40 mm. The distance between the window and the end part of the tip of the beveled surface is reasonable in design, so that whether the tip of the beveled surface of the core tube pierces the wall of the arterial vessel can be observed in time, and the timeliness of the operation is further guaranteed.

Further, according to the preferable technical scheme, the window is a circular hole, and the inner diameter of the window ranges from 2mm to 3 mm; or the window is a rectangular hole, the length size range of the window is 2-3 mm, and the width size range of the window is 1-2 mm. The shape and size of the window are reasonable in design, the size of the window does not exceed the diameter of the core tube, the use strength of the core tube is guaranteed, and the efficiency of bleeding blood from the window on the core tube is guaranteed.

According to a further preferable technical scheme, the insertion end comprises an integrally formed positioning plate, a conical guide tube and a straight tube connector, the conical guide tube is vertically arranged at the center of one side of the positioning plate, the straight tube connector is vertically arranged at the center of the other side of the positioning plate, the large-diameter end of the conical guide tube is coaxially connected and communicated with the straight tube connector, the outer diameter of the straight tube connector is 0.3-0.5 mm larger than the inner diameter of the outer tube, and the straight tube connector on the insertion end is inserted and installed inside one end, far away from the external thread connecting tube, of the outer tube in an interference fit manner; and a plurality of side holes along the length direction of the axial center line of the conical guide tube are radially arranged on the side wall of the conical guide tube at intervals. The insertion end is inserted and installed in one end of the outer pipe far away from the external thread connecting pipe through the interference fit of the straight pipe joint, so that the assembly efficiency of the outer pipe and the insertion end is ensured; the side wall of the conical guide tube is radially provided with a plurality of side holes along the length direction of the axial center line of the conical guide tube at intervals, even if the end part of the conical guide tube is blocked by adsorption with the bottom wall of the arterial blood vessel, blood in the arterial blood vessel can enter the outer tube through the side holes, and similarly, liquid medicine in the outer tube can enter the arterial blood vessel through the side holes, so that the smoothness and the high efficiency of the operation are ensured.

In order to further ensure the feasibility and the practicability of the preparation and implementation of the arterial vessel root jumping stopping needle, a further preferred technical scheme is that the plurality of side holes comprise a first side hole close to the small-caliber end of the conical guide tube and a second side hole close to the positioning plate, and the axial center line of the conical guide tube is positioned on the same plane where the first side hole and the second side hole are positioned. The insertion depth of the conical guide tube can be flexibly adjusted according to the diameter of the artery vessel, and the use flexibility of the artery vessel root retaining and jumping needle is further ensured.

In order to further improve the comfort and convenience of the arterial vessel root when the jumping needle is stopped, a preferred technical scheme is that an annular holding table is arranged on the tube body of the outer tube close to one end of the external thread connecting tube. The hoop grips the platform and has improved the comfort level that grips when this artery blood vessel root stops the jump needle use, has further ensured puncture blood vessel's convenience and high efficiency.

Further preferred technical scheme still, outer tube, insert the end and the sealing cap are the PVC material, and the three all adopt injection molding process machine-shaping. All parts are processed and formed by adopting an injection molding process, so that the high-efficiency processing efficiency and the processing precision of the three parts are ensured.

The utility model has the advantages and the beneficial effects that:

1. the utility model discloses artery vessel root stops jumping needle, through set up the window that is close to inserting the end on the body that the core pipe is located the outer tube, when the scarf point end of core pipe pierces the artery vascular wall, have blood to emerge from the window instantaneously, compare and judge whether the scarf point end punctures artery blood vessel wall through observing the bloody condition of the other end of core pipe in the tradition, the timeliness of operation has been obviously improved; the arterial vessel root jumping-stopping needle is simple and reasonable in structural design, high in preparation implementation feasibility and strong in practicability.

2. The distance between the center of the window and the end part of the tip of the chamfer is 30-40 mm. The distance between the window and the end part of the tip of the beveled surface is reasonable in design, so that whether the tip of the beveled surface of the core tube pierces the wall of the arterial vessel can be observed in time, and the timeliness of the operation is further guaranteed.

3. The window is a circular hole, and the inner diameter of the window ranges from 2mm to 3 mm; or the window is a rectangular hole, the length size range of the window is 2-3 mm, and the width size range of the window is 1-2 mm. The shape and size of the window are reasonable in design, the size of the window does not exceed the diameter of the core tube, the use strength of the core tube is guaranteed, and the efficiency of bleeding blood from the window on the core tube is guaranteed.

4. The inserting end comprises an integrally formed positioning plate, a conical guide tube and a straight tube connector, the conical guide tube is vertically arranged in the center of one side of the positioning plate, the straight tube connector is vertically arranged in the center of the other side of the positioning plate, the large-diameter end of the conical guide tube is coaxially connected and communicated with the straight tube connector, the outer diameter of the straight tube connector is 0.3-0.5 mm larger than the inner diameter of the outer tube, and the straight tube connector on the inserting end is inserted and installed inside one end, far away from the external thread connecting tube, of the outer tube in an interference fit manner; and a plurality of side holes along the length direction of the axial center line of the conical guide tube are radially arranged on the side wall of the conical guide tube at intervals. The insertion end is inserted and installed in one end of the outer pipe far away from the external thread connecting pipe through the interference fit of the straight pipe joint, so that the assembly efficiency of the outer pipe and the insertion end is ensured; the side wall of the conical guide tube is radially provided with a plurality of side holes along the length direction of the axial center line of the conical guide tube at intervals, even if the end part of the conical guide tube is blocked by adsorption with the bottom wall of the arterial blood vessel, blood in the arterial blood vessel can enter the outer tube through the side holes, and similarly, liquid medicine in the outer tube can enter the arterial blood vessel through the side holes, so that the smoothness and the high efficiency of the operation are ensured.

5. The side holes comprise a first side hole close to the small-caliber end of the conical guide tube and a second side hole close to the positioning plate, and the axial center line of the conical guide tube is positioned on the same plane where the first side hole and the second side hole are positioned. The insertion depth of the conical guide tube can be flexibly adjusted according to the diameter of the artery vessel, and the use flexibility of the arterial vessel root retaining and jumping needle is further ensured.

6. And an annular holding table is arranged on the pipe body of one end, close to the external thread connecting pipe, of the outer pipe. The hoop grips the platform and has improved the comfort level that grips when this artery blood vessel root stops the jump needle use, has further ensured puncture blood vessel's convenience and high efficiency.

7. The outer tube, the insertion end and the sealing cap are all made of PVC materials and are processed and formed by adopting an injection molding process. All parts are processed and formed by adopting an injection molding process, so that the high-efficiency processing efficiency and the processing precision of the three parts are ensured.

Drawings

FIG. 1 is a schematic structural view of the artery vessel root jumping-stopping needle convenient for observing the puncture position of the present invention;

FIG. 2 is a schematic structural view of the insertion end;

FIG. 3 is a schematic structural view of an outer tube;

FIG. 4 is a schematic view of the core tube;

FIG. 5 is one of the usage status diagrams of the artery root puncture needle convenient for observing the puncture position of the present invention;

fig. 6 is a second usage state diagram of the artery vessel root jumping-stopping needle convenient for observing the puncture position of the utility model.

In the figure: 1. an outer tube; 2. an insertion end; 3. a sealing cap; 4. a core tube; 5. an arterial blood vessel; 1-1, a circular holding table; 1-2, connecting a pipe with an external thread; 2-1, positioning plates; 2-2, a conical guide tube; 2-2-1, a first side hole; 2-2-2, second side holes; 2-3, straight pipe joint; 4-1, a beveled tip; 4-2 and a window.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Examples

As shown in fig. 1-4, the utility model relates to an artery vessel root jumping stopping needle convenient for observing puncture position, which comprises an outer tube 1 and a core tube 4, wherein an insertion end 2 is detachably arranged at one end of the outer tube 1, an external thread connecting tube 1-2 is coaxially arranged at the other end of the outer tube 1, and a sealing cap 3 is arranged on the external thread connecting tube 1-2 in a sealing and screwed manner; the core tube 4 is inserted into the outer tube 1, one end of the core tube 4 is provided with a beveled tip 4-1 extending to the outside of the insertion end 2, the other end of the core tube 4 abuts against the inner side surface of the top of the sealing cap 3, and a window 4-2 close to the insertion end 2 is formed in the tube body of the core tube 4 positioned in the outer tube 1; the outer tube 1 is colorless transparent material, the core pipe 4 is medical stainless steel material.

Preferably, the center of the window 4-2 is 30-40 mm away from the end of the beveled surface tip 4-1.

Further preferably, the window 4-2 is a circular hole, and the inner diameter of the window 4-2 ranges from 2mm to 3 mm; or the window 4-2 is a rectangular hole, the length size range of the window 4-2 is 2-3 mm, and the width size range of the window 4-2 is 1-2 mm.

Preferably, the inserting end 2 comprises an integrally formed positioning plate 2-1, a conical guide tube 2-2 and a straight tube connector 2-3, the conical guide tube 2-2 is vertically arranged at the center of one side of the positioning plate 2-1, the straight tube connector 2-3 is vertically arranged at the center of the other side of the positioning plate 2-1, the large-diameter end of the conical guide tube 2-2 is coaxially connected and communicated with the straight tube connector 2-3, the outer diameter of the straight tube connector 2-3 is larger than the inner diameter of the outer tube 1 by 0.3-0.5 mm, and the straight tube connector 2-3 on the inserting end 2 is inserted and installed inside one end, far away from the external thread connecting tube 1-2, of the outer tube 1 in an interference fit manner; a plurality of side holes along the length direction of the axial center line of the conical guide tube 2-2 are radially arranged on the side wall of the conical guide tube 2-2 at intervals.

Further preferably, the plurality of side holes comprise a first side hole 2-2-1 close to the small-caliber end of the conical guide tube 2-2 and a second side hole 2-2-2 close to the positioning plate 2-1, and the axial center line of the conical guide tube 2-2 is positioned on the same plane where the first side hole 2-2-1 and the second side hole 2-2-2 are positioned.

Further preferably, a circumferential holding table 1-1 is arranged on the pipe body of the outer pipe 1 close to one end of the external thread connecting pipe 1-2.

Further preferably, the outer tube 1, the insertion end 2 and the sealing cap 3 are all made of PVC materials and are formed by adopting an injection molding process.

The utility model discloses artery vessel root convenient to observe puncture position stops jumping needle theory of use:

holding a circumferential holding table 1-1 on an outer tube 1, and aligning a beveled tip 4-1 of a core tube 4 to an arterial blood vessel 5 to be punctured; slowly applying a pushing force to the outer tube 1 to enable the tip 4-1 of the oblique cut surface to pierce the tube wall of the arterial blood vessel 5 to enter the arterial blood vessel 5, and when the first side hole 2-2-1 on the core tube 4 is seen to start to emit blood, the tube wall of the arterial blood vessel 5 is proved to be pierced, and meanwhile, the pushing force applied to the arterial blood vessel 5 is stopped; the sealing cap 3 is detached, then the core tube 4 is drawn out from the outer tube 1, and meanwhile, the finger part is used for partially blocking the port of the external thread connecting tube 1-2, so that blood in the arterial blood vessel 5 slowly enters the outer tube 1; when the outer tube 1 is filled with blood, the fingers are removed from the port of the external thread connecting tube 1-2, and the external thread connecting tube 1-2 is rapidly connected with the external instrument pipeline in a sealing way, so that the subsequent operation is carried out.

For the artery 5 with smaller inner diameter, the conical guide tube 2-2 can be inserted into the vessel incompletely, and only the first side hole 2-2-1 and the second side hole 2-2-2 are required to be inserted into the vessel (as shown in fig. 5); for arterial vessels 5 having a larger inner diameter dimension, the tapered guide tube 2-2 may be inserted completely inside the vessel (as shown in fig. 6). Wherein, two side holes are arranged on the conical guide tube 2-2 at intervals along the axial length direction, even if the end part of the conical guide tube 2-2 is blocked with the bottom wall inside the blood vessel in an adsorption way, the speed of the blood in the arterial blood vessel 5 entering the outer tube 1 is not influenced, and similarly, when the liquid medicine is infused to the heart, the smoothness of the liquid medicine in the outer tube 1 entering the arterial blood vessel 5 is ensured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The artery vessel root jumping stopping needle convenient for observing the puncture position is characterized by comprising an outer tube (1) and a core tube (4), wherein an insertion end (2) is detachably arranged at one end of the outer tube (1), an external thread connecting tube (1-2) is coaxially arranged at the other end of the outer tube (1), and a sealing cap (3) is hermetically and spirally connected onto the external thread connecting tube (1-2); the core tube (4) is inserted into the outer tube (1), one end of the core tube (4) is provided with a beveled tip (4-1) extending to the outside of the insertion end (2), the other end of the core tube (4) is abutted against the inner side surface of the top of the sealing cap (3), and a window (4-2) close to the insertion end (2) is formed in a tube body of the core tube (4) positioned in the outer tube (1); the outer tube (1) is made of colorless transparent materials, and the core tube (4) is made of medical stainless steel materials.

2. The artery vessel root stop-jump needle convenient for observing the puncture position as claimed in claim 1, wherein the center of the window (4-2) is 30-40 mm away from the end of the beveled tip (4-1).

3. The artery vessel root stop-jump needle convenient for observing the puncture position as claimed in claim 2, wherein the window (4-2) is a circular hole, and the inner diameter of the window (4-2) is in the size range of 2-3 mm; or the window (4-2) is a rectangular hole, the length size range of the window (4-2) is 2-3 mm, and the width size range of the window is 1-2 mm.

4. The arterial vessel root retaining and jumping needle for facilitating observation of a puncture site as claimed in claim 3, the insertion end (2) comprises an integrally formed positioning plate (2-1), a conical guide tube (2-2) and a straight tube joint (2-3), the conical guide pipe (2-2) is vertically arranged in the center of one side of the positioning plate (2-1), the straight pipe joint (2-3) is vertically arranged at the center of the other side of the positioning plate (2-1), the large-caliber end of the conical guide tube (2-2) is coaxially connected and communicated with the straight tube joint (2-3), the outer diameter of the straight pipe joint (2-3) is 0.3-0.5 mm larger than the inner diameter of the outer pipe (1), the straight pipe joint (2-3) on the insertion end (2) is inserted and installed inside one end, far away from the external thread connecting pipe (1-2), of the outer pipe (1) in an interference fit manner; a plurality of side holes along the length direction of the axial center line of the conical guide pipe (2-2) are radially arranged on the side wall of the conical guide pipe (2-2) at intervals.

5. The artery vessel root stop-jump needle convenient for observing the puncture position as claimed in claim 4, wherein the plurality of side holes comprise a first side hole (2-2-1) near the small-caliber end of the conical guide tube (2-2) and a second side hole (2-2-2) near the positioning plate (2-1), and the axial center line of the conical guide tube (2-2) is located on the same plane as the first side hole (2-2-1) and the second side hole (2-2-2).

6. The artery vessel root stop-jump needle convenient for observing the puncture position as claimed in claim 5, wherein a circumferential holding platform (1-1) is arranged on the tube body of the outer tube (1) near one end of the external thread connecting tube (1-2).

7. The artery vessel root anti-skipping needle convenient for observing the puncture position as claimed in claim 6, wherein the outer tube (1), the insertion end (2) and the sealing cap (3) are all made of PVC, and the three are formed by injection molding.

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