CN113144393A

CN113144393A - Adjustable common type trans-radial coronary angiography catheter

Info

Publication number: CN113144393A
Application number: CN202110508533.0A
Authority: CN
Inventors: 孙丽娜; 毛玉兰; 付钰锟
Original assignee: Shenzhen Maipuqi Medical Technology Co ltd
Current assignee: Shenzhen Maipuqi Medical Technology Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-07-23

Abstract

The invention relates to the technical field of medical instruments and discloses an adjustable common type transradial coronary angiography catheter which comprises a first catheter, wherein a second catheter is integrally injected at the top of the first catheter, a third catheter is integrally injected at the top of the second catheter, a first metal mesh layer is arranged inside the third catheter, and the first metal mesh layer is formed by mixing stainless steel wires and aluminum wires; according to the invention, the first metal mesh layer made of the stainless steel wire and the aluminum wire in a mixed mode is arranged in the third conduit, so that the third conduit has a plastic function, an operator can adjust the angle of the third conduit upwards when using the third conduit, the bent position of the third conduit can be in contact with the artery and the artery branch, the head end is prevented from being in direct contact with the artery and the artery branch, the head end can be prevented from entering the interior of the artery branch, the scratch situation is avoided, the controllability of the operator on the conduit is improved, and the accuracy of the third conduit in use is also ensured.

Description

Adjustable common type trans-radial coronary angiography catheter

Technical Field

The invention relates to the technical field of medical instruments, in particular to an adjustable common type transradial coronary angiography catheter.

Background

The contrast catheter is a key device for percutaneous angiography, and has proper hardness, elasticity, flexibility and torsion; should have good X-ray transmission performance; good shape memory, smooth wall, high contrast performance, and controllable thrombosis performance.

When the radial artery angiography catheter is used at present, the catheter head end of the radial artery angiography catheter cannot be subjected to angle adjustment, a right angle of 90 degrees is formed between the catheter head end and the catheter, the structure is unreasonable, in the operation process of an operator, the head end of the radial artery angiography catheter is in a 90-degree state, when the operator moves the catheter, the catheter head end is easy to scratch with an artery and an artery branch, the bottom of the head end of the radial artery angiography catheter cannot be contacted with the artery due to the bending angle, so that the radial artery angiography catheter can easily enter the artery branch, the precision of the radial artery angiography catheter is very low, when the radial artery angiography catheter enters a patient body, the catheter is very easy to bend due to the influence of blood and tissues of the patient, so that the inner walls of the catheter are mutually extruded together, after the extrusion of the inner wall of the catheter occurs, if medical personnel carry out guide wire conveying on the catheter, the guide wire can be directly clamped between the two inner walls of the catheter, therefore, the position of the catheter needs to be adjusted by an operator, the smoothness of guide wire conveying cannot be guaranteed, and the efficiency of the operation can be influenced by adjusting the guide wire.

Disclosure of Invention

The invention aims to provide an adjustable common type radial artery coronary angiography catheter which has the advantages of adjustable head end and bending prevention and solves the problems that the head end of the conventional radial artery coronary angiography catheter cannot be adjusted and the inner wall of the catheter cannot be prevented from bending when the conventional radial artery coronary angiography catheter is used.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an adjustable sharing type is through radial artery coronary angiography pipe, includes first pipe, the integrative second pipe that has moulded plastics in top of first pipe, the integrative third pipe that has moulded plastics in top of second pipe, the inside of third pipe is equipped with metal mesh layer one, metal mesh layer one is mixed by stainless steel wire and aluminium wire and is made, the bottom of metal mesh layer one is equipped with the head end, the bottom of head end and the top contact of third pipe, the inside of first pipe is equipped with flexible stand pipe, the top of flexible stand pipe runs through to the inside of second pipe.

Preferably, the top of the first metal mesh layer is provided with a hollow threaded column in a bolted connection mode, and the top end of the hollow threaded column is in bolted connection with the head end.

Preferably, a thread groove is formed in the third conduit, the thread groove is located at the top of the inner cavity of the third conduit, and the interior of the thread groove is in threaded connection with the surface of the hollow threaded column.

Preferably, a second metal mesh layer is filled in each of the first conduit and the second conduit, and the second metal mesh layer is a stainless steel metal mesh.

Preferably, the head end becomes gradually larger from the top end to the bottom end, and the head end is funnel-shaped.

Preferably, the first guide pipe is internally embedded with a hollow column, the hollow column is located at the bottom end of the first guide pipe, and the bottom end of the hollow column and the bottom end of the first guide pipe are located on the same horizontal line.

Preferably, the top of the bendable guide tube and the top end of the second guide tube are not in the same horizontal line, and the length of the bendable guide tube is smaller than the sum of the lengths of the first guide tube and the second guide tube.

Preferably, the diameters of the inner cavities of the first catheter, the second catheter and the third catheter are the same, and the straight line of the inner cavity of the bendable guide tube is smaller than the diameters of the inner cavities of the first catheter, the second catheter and the third catheter.

Preferably, the surface of the bendable guide tube is not in contact with the inside of the first guide tube and the second guide tube, and the bottom end of the bendable guide tube is bolted to the top end of the hollow column.

Preferably, the top end of the head end is subjected to laser Tip treatment.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the first metal mesh layer made of the stainless steel wire and the aluminum wire in a mixed mode is arranged in the third conduit, so that the third conduit has a plastic function, and further an operator can adjust the angle of the third conduit upwards when in use, so that the bent position of the third conduit can be contacted with the artery and the artery branch, the head end is prevented from being directly contacted with the artery and the artery branch, the head end is prevented from entering the artery branch and being scratched, the controllability of the operator on the conduit is improved, and the precision of the third conduit in use is ensured;

2. according to the invention, the bendable guide tubes are arranged in the first guide tube and the second guide tube, and the inner parts of the bendable guide tubes are not mutually extruded when the bendable guide tubes are bent by utilizing the principle of the bendable suction tube, so that the normal propulsion of a guide wire is ensured, the smoothness of the guide tubes is improved, and the operation efficiency of medical personnel is also improved.

Drawings

FIG. 1 is a front view of the inventive structure;

FIG. 2 is a schematic view of the invention showing the use of the hollow threaded post and the threaded groove;

FIG. 3 is a schematic view of a first metal mesh layer and a head end of the present invention;

fig. 4 is a partially enlarged sectional view of a first guide pipe and a second guide pipe used in combination according to example 2 of the present invention.

In the figure: 1. a first conduit; 2. a second conduit; 3. a third conduit; 4. a first metal mesh layer; 5. a head end; 6. a bendable guide tube; 7. a hollow threaded post; 8. a thread groove; 9. a second metal mesh layer; 10. a hollow column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, an adjustable common type coronary artery angiography catheter through the radial artery comprises a first catheter 1, a second catheter 2 is integrally injected on the top of the first catheter 1, a third catheter 3 is integrally injected on the top of the second catheter 2, a first metal mesh layer 4 is arranged inside the third catheter 3, the first metal mesh layer 4 is made of a mixture of stainless steel wires and aluminum wires, the toughness and plasticity of the third catheter 3 are improved through the arrangement that the first metal mesh layer 4 is made of a mixture of stainless steel wires and aluminum wires, a head end 5 is arranged at the bottom end of the first metal mesh layer 4, the bottom end of the head end 5 is in contact with the top end of the third catheter 3, the head end 5 can be used for butt joint with the artery of a patient to ensure that the third catheter 3 can enter the artery of the patient, a hollow threaded column 7 is arranged on the top of the first metal mesh layer 4, and the top end of the hollow threaded column 7 is in plug joint with the head end 5, through the arrangement of the hollow threaded column 7, the first metal mesh layer 4 and the head end 5 are connected, the first metal mesh layer 4 can be separated from the third conduit 3 along with the hollow threaded column 7, the threaded groove 8 is formed in the third conduit 3, the threaded groove 8 is located at the top of the inner cavity of the third conduit 3, the inner part of the threaded groove 8 is in threaded connection with the surface of the hollow threaded column 7, through the arrangement of the threaded groove 8, the limiting effect is achieved on the hollow threaded column 7, the head end 5 can be driven by the hollow threaded column 7 to be in contact with the top end of the third conduit 3, and therefore an operator can detach the first metal mesh layer 4, the inner parts of the first conduit 1 and the second conduit 2 are both filled with the second metal mesh layer 9, the second metal mesh layer 9 is a stainless steel metal mesh, through the arrangement of the second metal mesh layer 9, the hardness of the first conduit 1 and the second conduit 2 is guaranteed, and the elasticity is achieved, Softness and torsion, the top of head end 5 to the gradual grow of bottom, the shape of head end 5 is the infundibulate, gradually grow through head end 5 top to bottom, head end 5 shape is the setting of infundibulate, can reduce the damage that head end 5 can cause patient's tissue when getting into the patient internal, thereby furthest guarantees the integrity of patient's tissue, the inside of first pipe 1 is embedded to have hollow post 10, hollow post 10 is located the bottom of first pipe 1, the bottom of hollow post 10 is in the same horizontal line with the bottom of first pipe 1, through the setting of hollow post 10, play spacing effect to flexible stand pipe 6, avoid flexible stand pipe 6 can appear with first pipe 1 and the condition that second pipe 2 breaks away from, thereby guaranteed the stability of flexible stand pipe 6, and the bottom of hollow post 10 is in the same horizontal line with the bottom of first pipe 1, the installation of the joint at the bottom end of the first conduit 1 can be facilitated, the laser Tip treatment is carried out at the top end of the head end 5, the top end of the head end 5 is provided with laser Tip treatment, so that the roundness of the top end of the head end 5 is increased, thereby reducing the damage of the head end 5 to the internal tissue of the patient, the third catheter 3 has plastic function by arranging the first metal mesh layer 4 made by mixing stainless steel wires and aluminum wires in the third catheter 3, so that the operator can adjust the angle of the third conduit 3 upwards when in use, thereby the bent position of the third conduit 3 can be contacted with the artery and the artery branch, and then avoided head end 5 can be direct and artery branch contact, avoided head end 5 can get into artery branch inside and avoided the emergence of the condition of scraping, not only improved operating personnel to the controllability of pipe, also guaranteed its precision when using.

Example 2

Referring to fig. 1-4, an adjustable common type coronary artery angiography catheter through the radial artery comprises a first catheter 1, a second catheter 2 is integrally injected on the top of the first catheter 1, a third catheter 3 is integrally injected on the top of the second catheter 2, a first metal mesh layer 4 is arranged inside the third catheter 3, the first metal mesh layer 4 is made of a mixture of stainless steel wires and aluminum wires, the toughness and plasticity of the third catheter 3 are improved through the arrangement that the first metal mesh layer 4 is made of a mixture of stainless steel wires and aluminum wires, a head end 5 is arranged at the bottom end of the first metal mesh layer 4, the bottom end of the head end 5 is in contact with the top end of the third catheter 3, the head end 5 can be used for butt joint with the artery of a patient to ensure that the third catheter 3 can enter the artery of the patient, a hollow threaded column 7 is arranged on the top of the first metal mesh layer 4, and the top end of the hollow threaded column 7 is in plug joint with the head end 5, through the arrangement of the hollow threaded column 7, the first metal mesh layer 4 and the head end 5 are connected, the first metal mesh layer 4 can be separated from the third conduit 3 along with the hollow threaded column 7, the threaded groove 8 is formed in the third conduit 3, the threaded groove 8 is located at the top of the inner cavity of the third conduit 3, the inner part of the threaded groove 8 is in threaded connection with the surface of the hollow threaded column 7, through the arrangement of the threaded groove 8, the limiting effect is achieved on the hollow threaded column 7, the head end 5 can be driven by the hollow threaded column 7 to be in contact with the top end of the third conduit 3, and therefore an operator can detach the first metal mesh layer 4, the inner parts of the first conduit 1 and the second conduit 2 are both filled with the second metal mesh layer 9, the second metal mesh layer 9 is a stainless steel metal mesh, through the arrangement of the second metal mesh layer 9, the hardness of the first conduit 1 and the second conduit 2 is guaranteed, and the elasticity is achieved, Softness and torsion, the top of head end 5 to the gradual grow of bottom, the shape of head end 5 is the infundibulate, gradually grow through head end 5 top to bottom, head end 5 shape is the setting of infundibulate, can reduce the damage that head end 5 can cause patient's tissue when getting into the patient internal, thereby furthest guarantees the integrity of patient's tissue, the inside of first pipe 1 is embedded to have hollow post 10, hollow post 10 is located the bottom of first pipe 1, the bottom of hollow post 10 is in the same horizontal line with the bottom of first pipe 1, through the setting of hollow post 10, play spacing effect to flexible stand pipe 6, avoid flexible stand pipe 6 can appear with first pipe 1 and the condition that second pipe 2 breaks away from, thereby guaranteed the stability of flexible stand pipe 6, and the bottom of hollow post 10 is in the same horizontal line with the bottom of first pipe 1, the installation of the bottom end connector of the first conduit 1 can be facilitated, the laser Tip treatment is carried out on the top end of the head end 5, the arrangement of the laser Tip treatment is carried out on the top end of the head end 5, the roundness degree of the top end of the head end 5 is increased, so that the damage of the head end 5 to the internal tissues of a patient is reduced, the third conduit 3 has a plastic function by arranging the metal net layer I4 made of stainless steel wires and aluminum wires in the third conduit 3, the angle of the third conduit 3 can be adjusted upwards by an operator when the third conduit is used, so that the bent position of the third conduit 3 can be contacted with the artery and the artery branch, the head end 5 is prevented from being directly contacted with the artery and the artery branch, the head end 5 can be prevented from entering the artery branch and the scratch is avoided, the controllability of the operator on the conduit is improved, and the precision of the third conduit in use is also ensured, the flexible guide tube 6 is arranged in the first guide tube 1, the top end of the flexible guide tube 6 penetrates into the second guide tube 2, the first guide tube 1 and the second guide tube 2 are enabled not to be completely inside the first guide tube 1 and the second guide tube 2 when the first guide tube 1 and the second guide tube 2 are completely arranged, so that the normal conveying of guide wires is ensured, the top of the flexible guide tube 6 and the top end of the second guide tube 2 are not in the same horizontal line, the length of the flexible guide tube 6 is smaller than the added length of the first guide tube 1 and the second guide tube 2, the flexible guide tube 6 is provided with a reserved space, so that the flexible guide tube 6 can extend forwards when being bent, the diameters of the inner cavities of the first catheter 1, the second catheter 2 and the third catheter 3 are the same, the straight line of the inner cavity of the bendable guide tube 6 is smaller than the diameters of the inner cavities of the first catheter 1, the second catheter 2 and the third catheter 3, the diameters of the inner cavities of the first catheter 1, the second catheter 2 and the third catheter 3 are the same, and the straight line of the inner cavity of the bendable guide tube 6 is smaller than the diameters of the inner cavities of the first catheter 1, the second catheter 2 and the third catheter 3, so that the guide wire can not collide with the inner walls of the first catheter 1 and the second catheter 2 to be bent after passing through the bendable guide tube 6, the surface of the bendable guide tube 6 is not in contact with the inner parts of the first catheter 1 and the second catheter 2, the bottom end of the bendable guide tube 6 is in contact with the top end of the hollow column 10, make flexible stand pipe 6 the condition with the contact of

first pipe

1 and 2 inner walls of second pipe can not appear when the bending, and make flexible stand pipe 6 the condition that the inner wall is close to together can not appear when the bending, and the 6 bottoms of flexible stand pipe and hollow post 10 bolt connection have then increased the stability of flexible stand pipe 6 when the bending, through set up flexible stand pipe 6 in

first pipe

1 and 2 inside of second pipe, utilize flexible straw principle, make flexible stand pipe 6 when the bending, the inside of flexible stand pipe 6 can not be extruded each other together, thereby the normal propulsion of seal wire has been guaranteed, the patency of pipe has not only been improved, and medical personnel's operation efficiency has also been improved.

The working principle is as follows: when the catheter is used, an operator can fold the third catheter 3 upwards according to the position of the artery of the patient, so that the angle between the third catheter 3 and the second catheter 2 is larger than 90 degrees, then the catheter is sent into the patient, in the process that the head end 5 is in butt joint with the artery, the bent position between the third catheter 3 and the second catheter 2 can move along with the operation of the operator on the catheter, when the catheter is downwards, the bent position between the third catheter 3 and the second catheter 2 can be in contact with the artery or the artery branch, and the bent position between the third catheter 3 and the second catheter 2, which is upwards, of the catheter can be far away from the artery and the artery branch, so that the head end 5 cannot be directly scratched with the artery and the artery branch, and the purpose of adjustment is further achieved;

in the process of the catheter entering the body of the patient, when the head end 5 meets resistance to cause the first catheter 1 and the second catheter 2 to bend, the inner walls of the first catheter 1 and the second catheter 2 are contacted with the bendable guide tube 6, the position where the bendable guide tube 6 is bent firstly is contracted, the position where the bendable guide tube 6 is bent later is extended, the inner walls of the bendable guide tube 6 are not extruded together all the time, and the bendable guide tube 6 is bent correspondingly along with the bending of the first catheter 1 and the second catheter 2 at other positions, so that the aim of bending prevention is fulfilled.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An adjustable common type transradial coronary angiography catheter, which comprises a first catheter (1), and is characterized in that: the utility model discloses a catheter, including first pipe (1), second pipe (2) have been moulded plastics to the top an organic whole of first pipe (1), the top an organic whole of second pipe (2) has been moulded plastics third pipe (3), the inside of third pipe (3) is equipped with metal mesh layer (4), metal mesh layer (4) are mixed by stainless steel wire and aluminium silk and are made, the bottom of metal mesh layer (4) is equipped with head end (5), the bottom of head end (5) and the top contact of third pipe (3), the inside of first pipe (1) is equipped with flexible stand pipe (6), the inside of second pipe (2) is run through to the top of flexible stand pipe (6).

2. The adjustable common transradial coronary angiography catheter according to claim 1, wherein: the top of the first metal mesh layer (4) is provided with a hollow threaded column (7) in a bolted connection mode, and the top end of the hollow threaded column (7) is in a bolted connection with the head end (5).

3. The adjustable common transradial coronary angiography catheter according to claim 2, wherein: a thread groove (8) is formed in the third guide pipe (3), the thread groove (8) is located at the top of the inner cavity of the third guide pipe (3), and the inner part of the thread groove (8) is in threaded connection with the surface of the hollow threaded column (7).

4. The adjustable common transradial coronary angiography catheter according to claim 1, wherein: the inner parts of the first conduit (1) and the second conduit (2) are both filled with a second metal mesh layer (9), and the second metal mesh layer (9) is a stainless steel metal mesh.

5. The adjustable common transradial coronary angiography catheter according to claim 1, wherein: the top end to the bottom end of head end (5) progressively grow, the shape of head end (5) is the infundibulate.

6. The adjustable common transradial coronary angiography catheter according to claim 1, wherein: the embedded hollow post (10) that has of inside of first pipe (1), hollow post (10) are located the bottom of first pipe (1), the bottom of hollow post (10) is in same water flat line with the bottom of first pipe (1).

7. The adjustable common transradial coronary angiography catheter according to claim 1, wherein: the top of the bendable guide pipe (6) and the top end of the second guide pipe (2) are not in the same horizontal line, and the length of the bendable guide pipe (6) is smaller than the sum of the lengths of the first guide pipe (1) and the second guide pipe (2).

8. The adjustable common transradial coronary angiography catheter according to claim 1, wherein: the diameters of the inner cavities of the first catheter (1), the second catheter (2) and the third catheter (3) are the same, and the straight line of the inner cavity of the bendable guide tube (6) is smaller than the diameters of the inner cavities of the first catheter (1), the second catheter (2) and the third catheter (3).

9. The adjustable common transradial coronary angiography catheter according to claim 6, wherein: the surface of the bendable guide tube (6) is not in contact with the inside of the first guide tube (1) and the second guide tube (2), and the bottom end of the bendable guide tube (6) is bolted to the top end of the hollow column (10).

10. The adjustable common transradial coronary angiography catheter according to claim 1, wherein: and the top end of the head end (5) is subjected to laser Tip treatment.