CN113521496A

CN113521496A - Blood vessel guiding catheter and fixing method thereof

Info

Publication number: CN113521496A
Application number: CN202110818082.0A
Authority: CN
Inventors: 桂红
Original assignee: Shenzhen Kaisite Medical Technology Co ltd
Current assignee: Shenzhen Kaisite Medical Technology Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-10-22
Anticipated expiration: 2041-07-20
Also published as: CN113521496B

Abstract

The invention provides a blood vessel guiding catheter and a fixing method thereof, wherein the blood vessel guiding catheter comprises a head end tube, a far end tube, a near end tube and a main tube, two ends of the far end tube are respectively connected with the head end tube and the near end tube, one end of the near end tube, far away from the far end tube, is connected with the main tube, one end of the main tube, far away from the near end tube, is connected with a tube seat, a guide wire penetrates through the main tube and then sequentially penetrates out of the head end tube through the near end tube and the far end tube, and stainless steel braids are arranged in the near end tube, the far end tube and the main tube. The invention can solve the technical problems that the tube body of the most of the current blood vessel guiding catheters is excessively soft, the controllability of the direction of the tube body in the advancing process is reduced due to the excessively soft tube body, the operation difficulty of the blood vessel guiding catheter in the using process is increased, and meanwhile, the current guiding tube is easy to shift after being fixed to a specified position due to the lack of fixation, so that the subsequent operation is influenced.

Description

Blood vessel guiding catheter and fixing method thereof

Technical Field

The invention relates to the technical field of blood vessel guiding catheters, in particular to a blood vessel guiding catheter and a fixing method thereof.

Background

The vessel guiding catheter is an important tool for interventional therapy, in the treatment of vessel diseases, due to the tortuous path of the vessel and the action of blood flow power, interventional materials such as the catheter and the like are difficult to enter a target vessel, even if the interventional materials can enter the target vessel reluctantly, the guiding catheter is unstable after reaching the position and difficult to provide enough supporting force, so that the guiding catheter is possibly displaced or is taken out of the blood vessel to be treated, and the subsequent operation is influenced;

the blood vessel of the overwhelming number of pairs guides the pipe body at present and excessively soft, and the pipe body is excessively soft has reduced the controllability of the direction of body in the advancing process, has increased the operation degree of difficulty of blood vessel guide pipe in the use, and current guiding tube shifts easily after reaching the assigned position owing to lacking to fix simultaneously, influences follow-up operation.

Disclosure of Invention

The invention provides a blood vessel guiding catheter and a fixing method thereof, which are used for solving the technical problems that the tube body of the most number of the current blood vessel guiding catheter is excessively soft, the controllability of the direction of the tube body in the advancing process is reduced due to the excessively soft tube body, the operation difficulty of the blood vessel guiding catheter in the using process is increased, and meanwhile, the current guiding catheter is easy to shift after being fixed to a specified position due to the lack of the fixing position, so that the subsequent operation is influenced.

In order to solve the technical problem, the invention discloses a blood vessel guiding catheter which comprises a head end tube, a far end tube, a near end tube and a main tube, wherein two ends of the far end tube are respectively connected with the head end tube and the near end tube, one end of the near end tube, which is far away from the far end tube, is connected with the main tube, one end of the main tube, which is far away from the near end tube, is connected with a tube seat, a guide wire penetrates through the main tube and then sequentially penetrates out of the head end tube through the near end tube and the far end tube, and stainless steel meshes are arranged in the near end tube, the far end tube and the main tube.

Preferably, the end of the head end tube remote from the distal end tube is rounded pointed.

Preferably, the main tube comprises a first nylon elastomer, a stainless steel braid and a second nylon elastomer, the stainless steel braid is located between the first nylon elastomer and the second nylon elastomer, and the stainless steel braid extends all the way to the head-end tube.

Preferably, the head end pipe is provided with a side hole.

Preferably, the guidewire is 0.038 inches in diameter.

Preferably, the outer surfaces of the proximal tube, the distal tube and the main tube are all made of nylon elastic material.

Preferably, a guide wire adjusting device mounting tube is arranged on the side wall of the main tube, and one end of the guide wire adjusting device mounting tube, which is far away from the main tube, is fixedly connected with a guide wire adjusting device; the guide wire adjusting device comprises an adjusting device shell, a guide wire adjusting mechanism and a guide wire adjusting executing mechanism are arranged in the adjusting device shell, and the guide wire adjusting mechanism is used for controlling the guide wire adjusting executing mechanism to stop working in time;

the guide wire adjusting mechanism comprises a supporting main shaft, the supporting main shaft is fixedly connected in the adjusting device shell, a supporting table is fixedly connected on the supporting main shaft, a guide wire braking mechanism is arranged on the supporting table, the guide wire braking mechanism comprises a connecting base, a guide rod is fixedly connected on the connecting base, a cross rod is sleeved on the guide rod and comprises a main rod body and a rod disc, the main rod body penetrates through the rod disc, an elastic body is arranged in the middle of the part positioned at the right end of the rod disc, the end, far away from the rod disc, of the main rod body is fixedly connected with the connecting base, an elastic part is fixedly connected at the bottom of the rod disc, one end, far away from the rod disc, of the elastic part is fixedly connected with the connecting base, a sleeve is connected on the supporting main shaft in a sliding mode, a push rod is fixedly connected to the bottom surface of the sleeve, an adjusting rack is fixedly connected to the circumferential direction of the sleeve, a first through hole is formed in the adjusting device shell, a first adjusting rotating shaft is connected in the first through hole in a rotating mode, a first bevel gear is connected to the end portion, located in the adjusting device shell, of the first adjusting rotating shaft in a key mode, an adjusting wheel is connected to one end portion, located outside the adjusting device shell, of the first adjusting rotating shaft in a key mode, a plurality of friction strips which are evenly distributed are arranged on the adjusting wheel in the circumferential direction, a second adjusting rotating shaft is connected in the adjusting device shell in a rotating mode, a second bevel gear and an engaging gear are connected to the second adjusting rotating shaft in a key mode, the second bevel gear is meshed with the first bevel gear, and the engaging gear is meshed with the adjusting rack;

the seal wire adjusting and executing mechanism comprises a first driving piece, the first driving piece is used for driving the seal wire adjusting and executing mechanism to rotate, the seal wire is wound on the seal wire adjusting and executing mechanism, the seal wire passes through a second through hole in the adjusting device shell and penetrates into the seal wire adjusting device installing pipe, the seal wire adjusting device installing pipe penetrates into the main body pipe, one end of the rod disc, far away from the main body, can be sleeved with a brake cylinder on the seal wire adjusting and executing mechanism, and therefore the seal wire adjusting and executing mechanism can stop working in time.

Preferably, the guide wire adjusting and actuating mechanism comprises a third adjusting rotating shaft, the output end of the first driving part is connected with the third adjusting rotating shaft through a coupler, the third adjusting rotating shaft is far away from one end key of the first driving part and connected with a carrier wheel, the carrier wheel is fixedly connected with a semicircular block, the semicircular block is coaxial with the carrier wheel, the carrier wheel is fixedly connected with a stirring short rod, the supporting main shaft is connected with an actuating wheel through a bearing, a plurality of semicircular matching teeth which are uniformly arranged are arranged on the periphery of the actuating wheel, tooth spaces are formed between the adjacent semicircular matching teeth, one side surface of the semicircular matching teeth, far away from the periphery of the actuating wheel, is in a semicircular arc shape and is matched with the periphery of the semicircular block, the tooth spaces can be matched with the stirring short rod to drive the actuating wheel to rotate, and a plurality of braking cylinders which are uniformly arranged are arranged on the actuating wheel, be cavity in the brake cylinder, and run through the executive wheel, the brake cylinder is located the left end fixedly connected with reel of executive wheel, the brake cylinder is located the part on executive wheel right side can with the mobile jib body is kept away from the one end of pole dish is registrated each other, the winding has on the reel the seal wire, the seal wire warp second through-hole on the adjusting device casing penetrates the seal wire adjusting device installation pipe, warp again the seal wire adjusting device installation pipe penetrates in the mobile jib.

Preferably, an injection auxiliary mechanism is arranged in the tube seat, and the injection auxiliary mechanism comprises a sealing cover main part and an auxiliary mechanism main part;

the sealing cover comprises a tube seat, a sealing cover mounting cavity is arranged in the tube seat, the sealing cover main part is arranged in the sealing cover mounting cavity and comprises a hinge short rod, a hinge adjusting plate is hinged on the hinge short rod, one end of the hinge adjusting plate is positioned outside the tube seat, the other end of the hinge adjusting plate is positioned in the sealing cover mounting cavity, the bottom of one end of the hinge adjusting plate positioned in the sealing cover mounting cavity is fixedly connected with a resetting elastic part, one end of the resetting elastic part, far away from the hinge adjusting plate, is fixedly connected with the inner wall of the sealing cover mounting cavity, a sealing cover adjusting rack is fixedly connected on the hinge adjusting plate, a first rotating shaft is rotationally connected in the sealing cover mounting cavity, a first adjusting gear and a first reel are in keyed connection with the first rotating shaft, the first adjusting gear is mutually meshed with the sealing cover adjusting rack, and a sealing cover is arranged in the sealing cover mounting cavity, the sealing cover is rotatably connected in the sealing cover mounting cavity through a second rotating shaft, a second winding wheel is connected to the second rotating shaft in a key mode, and a winding is wound on the first winding wheel;

an injection mechanism mounting table hole is formed in the tube seat, a positioning step is arranged in the injection mechanism mounting table hole, a liquid injection channel is arranged at the outlet end of the injection mechanism mounting table hole, a main tube mounting hole is formed in one end, away from the injection mechanism mounting table hole, of the liquid injection channel, a main tube body is connected in the main tube mounting hole, a first sealing ring is arranged between the main tube mounting hole and the main tube body, an auxiliary mechanism mounting cavity is formed in the tube seat, and the auxiliary mechanism main body is arranged in the auxiliary mechanism mounting cavity;

the auxiliary mechanism main body comprises a clamping component and a flow regulating component, the clamping component comprises a first auxiliary rotating shaft, a second driving piece is arranged on the first auxiliary rotating shaft, a first auxiliary bevel gear and a second auxiliary bevel gear are connected to the first auxiliary rotating shaft in a key way, a second auxiliary rotating shaft and a third auxiliary rotating shaft are connected to the auxiliary mechanism mounting cavity in a rotating way, the axes of the second auxiliary rotating shaft and the third auxiliary rotating shaft are mutually vertical to the axis of the first auxiliary rotating shaft, a third auxiliary bevel gear and a first auxiliary gear are connected to the second auxiliary rotating shaft in a key way, a fourth auxiliary bevel gear and a second auxiliary gear are connected to the third auxiliary rotating shaft in a key way, the third auxiliary bevel gear and the fourth auxiliary bevel gear are respectively meshed with the first auxiliary bevel gear and the second auxiliary bevel gear in a mutual meshing way, and a first auxiliary rack and a second auxiliary rack are connected to two ends of the injection mechanism mounting table hole in the auxiliary mechanism mounting cavity in a sliding way, the first auxiliary rack and the second auxiliary rack are meshed with a first auxiliary gear and a second auxiliary gear respectively;

the flow control subassembly includes flow control drive gear, be equipped with the spout in the supplementary pivot of second, flow control drive gear passes through the spout sliding key is connected in the supplementary pivot of second, be equipped with the third driving piece on the sliding key, the third driving piece is used for the drive the sliding key is followed the supplementary pivot of second slides, sliding connection has the flow control rack in the auxiliary mechanism installation cavity, the flow control rack can with flow control drive gear intermeshing, the flow control rack can stretch into in the main part pipe, sealed lid installation cavity with the main part pipe communicates with each other the department and is equipped with the second sealing washer.

A method of securing a vessel guiding catheter, comprising the steps of:

s1: after the blood vessel guiding catheter is pushed to a target position, a gasket is arranged at the root part of the main body pipe outside the skin and is attached to the skin;

s2: sleeving a fixer slide outside the main body pipe, placing the fixer slide above the gasket, and adhering and fixing the lower surface of the fixer slide to the skin;

s3: sleeving a semicircular pipe sleeve on the part of the main body pipe on the slide glass of the fixer, and then sticking and fixing the semicircular pipe sleeve and the upper surface of the slide glass of the fixer by using a medical adhesive tape.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the connection of the guiding catheter according to the present invention.

FIG. 3 is a schematic view of the position of the side hole of the present invention.

FIG. 4 is a schematic view of the main tube structure of the present invention.

Fig. 5 is a schematic structural diagram of a guide wire adjusting device of the invention.

Fig. 6 is a schematic view of the carrier wheel and the actuator wheel of the present invention in cooperation.

FIG. 7 is a schematic view of the stem structure of the present invention.

FIG. 8 is a schematic view of a guiding catheter fixing structure according to the present invention.

In the figure: 1. a head end tube; 2. a distal tube; 3. a main body tube; 300. a first nylon elastomer; 301. weaving a stainless steel net; 302. a second nylon elastomer; 4. a guide wire; 5. a side hole; 6. a tube holder; 600. a guide wire adjusting device installation tube; 601. an injection mechanism mounting table hole; 602. positioning a step; 603. a liquid injection channel; 604. a main body tube mounting hole; 605. a first seal ring; 606. an auxiliary mechanism mounting cavity; 607. a first auxiliary rack; 608. a second auxiliary rack; 7. a guidewire adjustment device; 700. an adjustment device housing; 7000. a first through hole; 7001. a first adjusting rotating shaft; 7002. a first bevel gear; 7003. an adjustment wheel; 7004. rubbing the strips; 7005. a second adjusting rotating shaft; 7006. a second bevel gear; 7007. a meshing gear; 7008. a second through hole; 701. a guide wire adjusting mechanism; 7010. supporting the main shaft; 7011. a support table; 702. a guide wire braking mechanism; 7020. connecting a base; 7021. a guide bar; 7022. a cross bar; 7023. a main rod body; 7024. a lever plate; 7025. an elastic member; 7026. an elastomer; 7027. a sleeve; 7028. a push rod; 7029. adjusting the rack; 703. a guide wire adjusting and executing mechanism; 7030. a first driving member; 7031. a third adjusting rotating shaft; 7032. a carrier wheel; 7033. a semicircular block; 7034. poking the short rod; 7035. an execution wheel; 7036. semicircular matching teeth; 7037. a tooth socket; 7038. a reel; 7039. a brake drum; 8. an injection assisting mechanism; 800. a sealing cover mounting cavity; 8000. a short hinge rod; 8001. a hinge adjusting plate; 8002. a restoring elastic member; 8003. the sealing cover adjusts the rack; 8004. a first rotating shaft; 8005. a first adjusting gear; 8006. a first reel; 8007. a sealing cover; 8008. a second rotating shaft; 8009. a second reel; 801. an auxiliary mechanism main body; 8010. winding; 802. a clamping assembly; 8020. a first auxiliary rotating shaft; 8021. a second driving member; 8022. a first auxiliary bevel gear; 8023. a second auxiliary bevel gear; 8024. a second auxiliary rotating shaft; 8025. a third auxiliary rotating shaft; 8026. a third auxiliary bevel gear; 8027. a fourth auxiliary bevel gear; 8028. a first auxiliary gear; 8029. a second auxiliary gear; 803. a flow regulating assembly; 8030. a flow regulating drive gear; 8031. a chute; 8032. a second seal ring; 8033. a flow regulating rack; 9. a gasket; 10. a holder slide; 11. a semicircular pipe sleeve; 12. skin; 13. a proximal tube.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

The present invention provides the following examples:

example 1

The embodiment of the invention provides a blood vessel guiding catheter and a fixing method thereof, and as shown in fig. 1-8, the blood vessel guiding catheter comprises a head end tube 1, a far end tube 2, a near end tube 13 and a main tube 3, wherein two ends of the far end tube 2 are respectively connected with the head end tube 1 and the near end tube 13, one end of the near end tube 13 far away from the far end tube 2 is connected with the main tube 3, one end of the main tube 3 far away from the near end tube 13 is connected with a tube seat 6, a guide wire 4 penetrates through the main tube 3 and then sequentially penetrates through the near end tube 13 and the far end tube 2 to penetrate out of the head end tube 1, and stainless steel meshes 301 are arranged in the near end tube 13, the far end tube 2 and the main tube 3.

The working principle and the beneficial effects of the technical scheme are as follows:

the method comprises the following steps:

1. carefully opening the sterile package and removing the catheter, flushing the lumen with heparin saline and immersing the catheter in heparin saline to lubricate the surface of the guide catheter prior to use;

2. penetrating the guide wire 4 with the required diameter into the tube seat 5 until the diameter exceeds the head end tube by 15 cm;

3. establishing an arterial access by adopting a percutaneous puncture technology;

4. a guide wire 4 is threaded along the artery, and then a guide catheter is pushed to enter the artery together;

5. withdrawing the guide wire 4 when the head end tube 1 reaches the target vessel branch;

6. pushing the guide tube to a target position, fixing, and performing an operation;

7. after the procedure is completed, the guide tube is withdrawn, the guide wire 4 is passed into the catheter until the guide wire 4 just exits the head end tube 1, and the guide wire 4 and the guide tube are carefully withdrawn together.

Preferably, a method for fixing a vessel guiding catheter comprises the following steps:

s1: after the vessel guiding catheter is pushed to a target position, a gasket 9 is arranged at the root part of the main body tube 3 outside the skin 12 and is attached to the skin;

s2: sleeving a fixer slide 10 outside the main body tube 3 and above the gasket 9, and adhering and fixing the lower surface of the fixer slide 10 to the skin;

s3: the semicircular pipe sleeve 11 is sleeved on the part, located on the holder slide 10, of the main body pipe 3, and then the semicircular pipe sleeve 11 and the upper surface of the holder slide 10 are adhered and fixed through a medical adhesive tape.

Wherein a stainless steel netting 301 is arranged in the proximal tube 13, the distal tube 2 and the main tube 3, the design of the stainless steel netting 301 improves the steerability of the distal tube 2 and the main tube 3, (since the design of the stainless steel netting 301 is such that the distal tube 2 and the main tube 3 are no longer overly flexible), the fixing method of the blood vessel guiding catheter ensures that the blood vessel guiding catheter can be fixed after reaching the designated position, prevents the blood vessel guiding catheter from shifting, solves the problems that the prior blood vessel guiding catheter has extremely large number of over-soft catheter bodies, reduces the controllability of the direction of the catheter bodies in the advancing process due to the over-soft catheter bodies, increases the operation difficulty of the blood vessel guiding catheter in the using process, meanwhile, the existing guide tube is easy to shift after being fixed at a specified position due to lack of fixation, so that the technical problem of subsequent operations is influenced.

Example 2

On the basis of the above embodiment 1, the end of the head end tube 1 far away from the distal end tube 2 is a round tip;

the main tube 3 comprises a first nylon elastomer 300, a stainless steel netting 301 and a second nylon elastomer 302, the stainless steel netting 301 is positioned between the first nylon elastomer 300 and the second nylon elastomer 302, and the stainless steel netting 301 extends to the head end tube 1;

a side hole 100 is arranged on the head end pipe 1;

the guidewire 4 is 0.038 inches in diameter;

the outer surfaces of the distal tube 2 and the main tube 3 are both made of nylon elastic material.

The working principle and the beneficial effects of the technical scheme are as follows: head-end pipe 1 is kept away from the one end of distal end pipe 2 is circular most advanced, has guaranteed the fabulous security of guiding tube prevents to cause the wound to the blood vessel, has reduced the risk of arteria tear and vascular injury, the design of stainless steel netting 301 has increased with the reactivity of guiding the pipe (promptly guide the reaction sensitivity of pipe to operating personnel operation), it has made things convenient for the radiography to have seted up side opening 100 on the head-end pipe 1, distal end pipe 2 with the surface of main part pipe 3 is nylon elastic material, has guaranteed to guide the good performance of controlling of pipe.

Example 3

On the basis of the

embodiment

1 or 2, a guide wire adjusting device mounting tube 600 is arranged on the side wall of the main tube 3, and a guide wire adjusting device 7 is fixedly connected to one end, far away from the main tube 3, of the guide wire adjusting device mounting tube 600; the guide wire adjusting device 7 comprises an adjusting device shell 700, a guide wire adjusting mechanism 701 and a guide wire adjusting executing mechanism 703 are arranged in the adjusting device shell 700, and the guide wire adjusting mechanism 701 is used for controlling the guide wire adjusting executing mechanism 703 to stop working in time;

the guide wire adjusting mechanism 701 comprises a supporting main shaft 7010, the supporting main shaft 7010 is fixedly connected in the adjusting device shell 700, a supporting table 7011 is fixedly connected on the supporting main shaft 7010, a guide wire braking mechanism 702 is arranged on the supporting table 7011, the guide wire braking mechanism 702 comprises a connecting base 7020, a guide rod 7021 is fixedly connected on the connecting base 7020, a cross rod 7022 is sleeved on the guide rod 7021, the cross rod 7022 comprises a main rod 7023 and a rod disk 7024, the main rod 7023 penetrates through the rod disk 7024, an elastic body 7026 is arranged in the middle of the part of the right end of the rod disk 7024, the main rod 7023 is far away from the end, far away from the rod disk 7024, of the rod disk 7024 and fixedly connected with the connecting base 7020, an elastic part 7025 is fixedly connected at the bottom of the rod disk 7024, one end, far away from the rod disk 7024, of the elastic part and fixedly connected with the connecting base 7020, a sleeve 7027 is connected to the supporting main shaft 7010 in a sliding manner, a push rod 7028 is fixedly connected to the bottom surface of the sleeve 7027, an adjusting rack 7029 is fixedly connected to the circumference of the sleeve 7027, a first through hole 7000 is formed in the adjusting device housing 700, a first adjusting rotating shaft 7001 is rotatably connected to the first through hole 7000, a first bevel gear 7002 is connected to an end portion of the first adjusting rotating shaft 7001 located in the adjusting device housing 700 in a key manner, an adjusting wheel 7003 is connected to an end portion of the first adjusting rotating shaft 7001 located outside the adjusting device housing 700 in a key manner, a plurality of friction strips 7004 uniformly arranged are circumferentially arranged on the adjusting wheel 7003, a second adjusting rotating shaft 7005 is rotatably connected to the adjusting device housing 700 in a key manner, a second bevel gear 7006 and a meshing gear 7007 are connected to the second adjusting rotating shaft 7005 in a key manner, and the second bevel gear 7006 and the first bevel gear 7002 are meshed with each other, the engagement gear 7007 and the adjustment rack 7029 are engaged with each other;

the guide wire adjusting actuator 703 comprises a first driving part 7030, the first driving part 7030 is used for driving the guide wire adjusting actuator 703 to rotate, the guide wire 4 is wound on the guide wire adjusting actuator 703, the guide wire 4 penetrates into the guide wire adjusting device mounting tube 600 through a second through hole 7008 on the adjusting device shell 700 and then penetrates into the main body tube 3 through the guide wire adjusting device mounting tube 600, and one end of the main body 7023, which is far away from the lever plate 7024, can be mutually sleeved with a brake cylinder 7039 on the guide wire adjusting actuator 703, so that the guide wire adjusting actuator 703 stops working in time;

the guide wire adjusting actuator 703 comprises a third adjusting rotating shaft 7031, the output end of the first driving part 7030 is connected with the third adjusting rotating shaft 7031 through a coupler, the third adjusting rotating shaft 7031 is far away from a first driving part 7030, one end of the first driving part is connected with a carrier wheel 7032 through a key, a semi-circular block 7033 is fixedly connected on the carrier wheel 7032, the semi-circular block 7033 is coaxial with the carrier wheel 7032, a poking short rod 7034 is fixedly connected on the carrier wheel 7032, an executing wheel 7035 is connected on the supporting main shaft 7010 through a bearing, a plurality of uniformly arranged semi-circular matching teeth 7036 are circumferentially arranged on the executing wheel 7035, a tooth space 7037 is formed between the semi-circular matching teeth 7036, the semi-circular matching teeth 7036 are far away from a side surface in the circumferential direction of the executing wheel 7035 is in a semi-circular arc shape and are circumferentially matched with the semi-circular block 7033, the tooth space 7037 can be matched with the poking short rod 7034, the drive execute the wheel 7035 and rotate, be equipped with a plurality of brake cylinder 7039 of evenly arranging on the execution wheel 7035, be cavity in the brake cylinder 7039, and run through execute the wheel 7035, the brake cylinder 7039 is located the left end fixedly connected with reel 7038 of execution wheel 7035, the brake cylinder 7039 is located the part on execution wheel 7035 right side can with main rod 7023 is kept away from the one end of rod dish 7024 is registrated each other, it has to twine on the reel 7038 the seal wire 4, the seal wire 4 warp the second through-hole 7008 on the adjusting device casing 700 penetrates the seal wire adjusting device mounting tube 600, the warp again the seal wire adjusting device mounting tube 600 penetrates in the main part pipe 3.

The working principle and the beneficial effects of the technical scheme are as follows: during use, if the guide wire 4 needs to be extended or shortened, the first driving part 7030 starts to drive the third adjusting rotating shaft 7031 to rotate, the third adjusting rotating shaft 7031 rotates to drive the carrier wheel 7032 to rotate, the carrier wheel 7032 rotates to drive the semicircular block 7033 and the toggle short rod 7034 to move, the semicircular block 7033 passes through the semicircular arc-shaped side face of the execution wheel 7035 in the moving process, the toggle short rod 7034 is matched with the tooth socket 7037 in the rotating process to toggle the execution wheel 7035 to rotate, the execution wheel 7035 rotates to drive the winding wheel 7038 to rotate, the winding wheel 7038 rotates to drive the guide wire 4 to be extended or shortened, if the guide wire 4 needs to be extended or shortened, the first driving part 7030 stops moving, an operator manually rotates the adjusting wheel 7003, the adjusting wheel 7003 rotates to drive the first adjusting rotating shaft 7001 to rotate, the first adjusting rotating shaft 7001 rotates to drive the first bevel gear 7002 to rotate, the first bevel gear 7002 rotates to drive the second bevel gear 7006 to rotate, the second bevel gear 7006 rotates to drive the second adjusting rotating shaft 7005 to rotate, the second adjusting rotating shaft 7005 rotates to drive the meshing gear 7007 to rotate, the meshing gear 7007 rotates to drive the adjusting rack 7029 to move left and right, the adjusting rack 7029 moves left and right to drive the sleeve 7027 to slide left and right along the supporting main shaft 7010, the sleeve 7027 slides left and right along the supporting main shaft 7010 to enable the push rod 7028 to push the rod 7024 to slide left and right along the guide bar 7021, the rod 7024 slides left and right along the guide bar 7021 to drive the main rod 7023 to slide left and right, the main rod 7023 slides left and right to drive one end of the main rod 7023, which is far away from the rod 7024, to be sleeved with a brake cylinder 7039 on the guide wire adjusting executing mechanism 703, the actuation wheels 7035 stop moving after being mutually engaged;

compared with manual long-time manual operation, the guide wire 4 frees labor force, avoids manual long-time operation, avoids misoperation caused by fatigue of the guide wire 4, ensures that the guide wire 4 does not need to be extended or shortened, and ensures that the guide wire adjusting executing mechanism 703 can stop acting in time, the operation accuracy of the guide wire adjusting device 7 is ensured, and the use safety of the blood vessel guiding tube is improved.

Example 4

On the basis of embodiment 1, an injection auxiliary mechanism 8 is arranged in the tube seat 6, and the injection auxiliary mechanism 8 comprises a sealing cover main part 8034 and an auxiliary mechanism main body 801;

a sealing cover mounting cavity 800 is arranged in the tube seat 6, the sealing cover main part 8034 is arranged in the sealing cover mounting cavity 800, the sealing cover main part 8034 comprises a hinge short rod 8000, a hinge adjusting plate 8001 is hinged on the hinge short rod 8000, one end of the hinge adjusting plate 8001 is positioned outside the tube seat 6 and is positioned in the sealing cover mounting cavity 800, a return elastic member 8002 is fixedly connected to the bottom of one end of the hinge adjusting plate 8001 positioned in the sealing cover mounting cavity 800, one end of the return elastic member 8002 away from the hinge adjusting plate 8001 is fixedly connected to the inner wall of the sealing cover mounting cavity 800, a sealing cover adjusting rack 8003 is fixedly connected to the hinge adjusting plate 8001, a first rotating shaft 8004 is rotatably connected to the sealing cover mounting cavity 800, a first adjusting gear 8005 and a first reel 8006 are keyed on the first rotating shaft 8004, and the first adjusting gear 8005 is meshed with the sealing cover adjusting rack 8003, a seal cover 8007 is arranged in the seal cover mounting cavity 800, the seal cover 8007 is rotatably connected into the seal cover mounting cavity 800 through a second rotating shaft 8008, a second reel 8009 is keyed on the second rotating shaft 8008, and a winding 8010 is wound on the first reel 8006;

an injection mechanism mounting table hole 601 is formed in the tube seat 6, a positioning step 602 is formed in the injection mechanism mounting table hole 601, a liquid injection channel 603 is formed at the outlet end of the injection mechanism mounting table hole 601, a main tube mounting hole 604 is formed in one end, far away from the injection mechanism mounting table hole 601, of the liquid injection channel 603, a main tube body 3 is connected in the main tube mounting hole 604, a first sealing ring 605 is arranged between the main tube mounting hole 604 and the main tube body 3, an auxiliary mechanism mounting cavity 606 is formed in the tube seat 6, and the auxiliary mechanism main body 801 is arranged in the auxiliary mechanism mounting cavity 606;

the auxiliary mechanism body 801 comprises a clamping assembly 802 and a flow rate adjusting assembly 803, the clamping assembly 802 comprises a first auxiliary rotating shaft 8020, a second driving member 8021 is arranged on the first auxiliary rotating shaft 8020, a first auxiliary bevel gear 8022 and a second auxiliary bevel gear 8023 are in keyed connection with the first auxiliary rotating shaft 8020, a second auxiliary rotating shaft 8024 and a third auxiliary rotating shaft 8025 are in rotationally connected with the auxiliary mechanism mounting cavity 606, the axes of the second auxiliary rotating shaft 8024 and the third auxiliary rotating shaft 8025 are mutually perpendicular to the axis of the first auxiliary rotating shaft 8020, a third auxiliary bevel gear 8026 and a first auxiliary bevel gear 8028 are in keyed connection with the second auxiliary rotating shaft 8024, a fourth auxiliary bevel gear 8027 and a second auxiliary gear 8029 are in keyed connection with the third auxiliary rotating shaft 8025, the third auxiliary bevel gear 8026 and the fourth auxiliary bevel gear 8027 are respectively meshed with the first auxiliary bevel gear 8022 and the second auxiliary bevel gear 8023, a first auxiliary rack 607 and a second auxiliary rack 608 are slidably connected to two ends of the injection mechanism mounting table hole 601 in the auxiliary mechanism mounting cavity 606, and the first auxiliary rack 607 and the second auxiliary rack 608 are respectively meshed with a first auxiliary gear 8028 and a second auxiliary gear 8029;

flow control subassembly 803 includes flow control drive gear 8030, be equipped with spout 8031 on the supplementary pivot 8024 of second, flow control drive gear 8030 passes through spout 8031 sliding key is connected on the supplementary pivot 8024 of second, be equipped with the third driving piece on the sliding key, the third driving piece is used for the drive the sliding key is followed the supplementary pivot 8024 of second slides, sliding connection has flow control rack 8033 in the auxiliary mechanism installation cavity 606, flow control rack 8033 can with flow control drive gear 8030 intermeshing, flow control rack 8033 can stretch into in the main part pipe 3, sealed lid installation cavity 800 with the communicating department of main part pipe 3 is equipped with second sealing washer 8032.

The working principle and the beneficial effects of the technical scheme are as follows: when the injection mechanism mounting table is used, one end of the hinge adjusting plate 8001, which is located outside the tube seat 6, is manually pushed, because the hinge adjusting plate 8001 is hinged to the hinge short rod 8000, one end of the hinge adjusting plate 8001, which is located inside the hinge adjusting plate 8001, drives the seal cover adjusting rack 8003 to move rightwards, the seal cover adjusting rack 8003 moves rightwards to drive the first adjusting gear 8005 to rotate anticlockwise, the first adjusting gear 8005 rotates anticlockwise to drive the first reel 8006 to rotate anticlockwise, the first reel 8006 rotates anticlockwise to drive the winding line 8010 thereon to rotate the second reel 8009 anticlockwise, the second reel 8009 rotates anticlockwise to drive the seal cover 8007 to rotate, the seal cover mounting chamber 800 is switched from a closed state to an open state, and then an injection mechanism is inserted into the injection mechanism mounting table hole 601, the design of the positioning step 602 can ensure that the injection mechanism does not generate displacement in the axial direction of the injection mechanism mounting platform hole 601 during the injection process, then the clamping assembly 802 works, the second driving member 8021 drives the first auxiliary rotating shaft 8020 to rotate, the first auxiliary rotating shaft 8020 rotates to drive the first auxiliary bevel gear 8022 and the second auxiliary bevel gear 8023 to rotate, the first auxiliary bevel gear 8022 and the second auxiliary bevel gear 8023 rotate to respectively drive the third auxiliary bevel gear 8026 and the fourth auxiliary bevel gear 8027 to rotate, the third auxiliary bevel gear 8026 and the fourth auxiliary bevel gear 8027 rotate to respectively drive the second auxiliary rotating shaft 8024 and the third auxiliary rotating shaft 8025 to rotate, the second auxiliary rotating shaft 8024 and the third auxiliary rotating shaft 8025 rotate to respectively drive the first auxiliary gear 8028 and the second auxiliary gear 8029 to rotate, the first auxiliary gear 8028 and the second auxiliary gear 8029 rotate to respectively drive the first auxiliary rack 607 and the second auxiliary rack 608 to move, so that the first auxiliary rack 607 and the second auxiliary rack 608 press the radial direction of the injection mechanism, so that the radial direction of the injection mechanism is fixed, during the injection process of the injection mechanism, the third driving member drives the sliding key to slide along the second auxiliary rotating shaft 8024, so that the flow rate regulation driving gear 8030 is meshed with the flow rate regulation rack 8033, the flow rate regulation driving gear 8030 rotates to drive the flow rate regulation rack 8033 to move, and the flow rate regulation rack 8033 moves to change the flow diameter of the injection channel 603;

the design of the sealing cover main part 8034 avoids the pollution of the tube seat 6 from the external environment, the positioning step 602 and the design of the clamping component 802 ensure the positioning of the injection mechanism, the positioning of the injection mechanism accurately ensures the accurate injection of the medicine (which can be contrast medium), and meanwhile, the design of the flow regulating component 803 can well control the speed and the flow of the medicine injection.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a blood vessel guide catheter, its characterized in that, includes head pipe (1), distal end pipe (2), near-end pipe (13) and main part pipe (3), distal end pipe (2) both ends respectively with head pipe (1) and near-end pipe (13) are connected, near-end pipe (13) are kept away from the one end of distal end pipe (2) with main part pipe (3) are connected, main part pipe (3) are kept away from the one end of near-end pipe (13) is connected with tube socket (6), and seal wire (4) warp main part pipe (3) are passed through in proper order after penetrating near-end pipe (13) far-end pipe (1), near-end pipe (13) far-end pipe (2) with be equipped with stainless steel braid (301) in main part pipe (3).

2. A vessel guiding catheter as claimed in claim 1, wherein the end of the nose tube (1) remote from the distal tube (2) is rounded-tipped.

3. The vessel guiding catheter as recited in claim 1,

the main tube (3) comprises a first nylon elastomer (300), a stainless steel netting (301) and a second nylon elastomer (302), the stainless steel netting (301) is located between the first nylon elastomer (300) and the second nylon elastomer (302), and the stainless steel netting (301) extends to the head end tube (1).

4. The vessel guiding catheter as recited in claim 1, wherein the head end tube (1) is provided with a side hole (100).

5. A vessel guiding catheter as claimed in claim 1, characterized in that the guide wire (4) has a diameter of 0.038 inches.

6. The vessel guiding catheter as recited in claim 1,

the outer surfaces of the proximal tube (13), the distal tube (2) and the main tube (3) are all made of nylon elastic materials.

7. The vessel guiding catheter as recited in claim 1,

a guide wire adjusting device mounting tube (600) is arranged on the side wall of the main tube (3), and a guide wire adjusting device (7) is fixedly connected to one end, far away from the main tube (3), of the guide wire adjusting device mounting tube (600); the guide wire adjusting device (7) comprises an adjusting device shell (700), a guide wire adjusting mechanism (701) and a guide wire adjusting executing mechanism (703) are arranged in the adjusting device shell (700), and the guide wire adjusting mechanism (701) is used for controlling the guide wire adjusting executing mechanism (703) to stop working in time;

the guide wire adjusting mechanism (701) comprises a supporting main shaft (7010), the supporting main shaft (7010) is fixedly connected in the adjusting device shell (700), a supporting table (7011) is fixedly connected to the supporting main shaft (7010), a guide wire braking mechanism (702) is arranged on the supporting table (7011), the guide wire braking mechanism (702) comprises a connecting base (7020), a guide rod (7021) is fixedly connected to the connecting base (7020), a cross rod (7022) is sleeved on the guide rod (7021), the cross rod (7022) comprises a main rod body (7023) and a rod disk (7024), the main rod body (7023) penetrates through the rod disk (7024), an elastic body (7026) is arranged in the middle of a part of the right end of the rod disk (7024), the main rod body (7023) is far away from the right end of the rod disk (7024), one end of the rod disk (7024) is far away from the right end of the rod disk (7024), and the connecting base (7020) are fixedly connected, the bottom of the rod disc (7024) is fixedly connected with an elastic piece (7025), one end, far away from the rod disc (7024), of the elastic piece (7025) is fixedly connected with the connection base (7020), the support main shaft (7010) is connected with a sleeve (7027) in a sliding manner, the bottom surface of the sleeve (7027) is fixedly connected with a push rod (7028), the sleeve (7027) is fixedly connected with an adjusting rack (7029) in the circumferential direction, a first through hole (7000) is formed in the adjusting device shell (700), a first adjusting rotating shaft (7001) is connected in the first through hole (7000) in a rotating manner, one end part, located in the adjusting device shell (700), of the first adjusting rotating shaft (7001) is connected with a first bevel gear (7002) in a key manner, one end part, located outside the adjusting device shell (700), of the first adjusting rotating shaft (7001) is connected with an adjusting wheel (7003) in a key manner, and a plurality of friction strips (7004) which are uniformly arranged are arranged in the circumferential direction are arranged on the adjusting wheel (7003), a second adjusting rotating shaft (7005) is rotationally connected in the adjusting device shell (700), a second bevel gear (7006) and an engaging gear (7007) are connected to the second adjusting rotating shaft (7005) in a key mode, the second bevel gear (7006) is engaged with the first bevel gear (7002), and the engaging gear (7007) is engaged with the adjusting rack (7029);

the guide wire adjusting actuator (703) comprises a first driving part (7030), the first driving part (7030) is used for driving the guide wire adjusting actuator (703) to rotate, the guide wire (4) is wound on the guide wire adjusting actuator (703), the guide wire (4) penetrates through a second through hole (7008) in the adjusting device shell (700) into the guide wire adjusting device mounting pipe (600) and then penetrates into the main body pipe (3) through the guide wire adjusting device mounting pipe (600), one end, far away from the rod disc (7024), of the main body rod (7023) can be mutually sleeved with a brake cylinder (7039) on the guide wire adjusting actuator (703), and the guide wire adjusting actuator (703) can stop working in time.

8. The vessel guiding catheter as recited in claim 7,

actuating mechanism (703) are adjusted including the third to pivot (7031), first driving piece (7030) output pass through the shaft coupling with third regulation pivot (7031) is connected, third regulation pivot (7031) is kept away from the one end key-type connection of first driving piece (7030) has carrier wheel (7032), fixedly connected with semicircle piece (7033) is gone up to carrier wheel (7032), semicircle piece (7033) with carrier wheel (7032) is coaxial, fixedly connected with stirs quarter butt (7034) on carrier wheel (7032), be connected with through the bearing and carry out wheel (7035) on supporting main shaft (7010), be equipped with semicircle cooperation tooth (7036) of a plurality of evenly arranged in carrying out wheel (7035) circumference, it is adjacent form tooth's socket (7037) between semicircle cooperation tooth (7036), semicircle cooperation tooth (7036) are kept away from a side of carrying out wheel (7035) circumference is the semicircle form, and is mutually matched with the semi-circle block (7033) in the circumferential direction, the tooth groove (7037) can be mutually matched with the toggle short rod (7034) to drive the actuating wheel (7035) to rotate, the execution wheel (7035) is provided with a plurality of brake cylinders (7039) which are uniformly arranged, the brake cylinders (7039) are hollow, and penetrates through the actuating wheel (7035), a reel (7038) is fixedly connected to the end part of the brake cylinder (7039) positioned on the left side of the actuating wheel (7035), the part of the brake cylinder (7039) positioned at the right side of the actuating wheel (7035) can be mutually sleeved with one end of the main rod body (7023) far away from the rod disc (7024), the winding wheel (7038) is wound with the guide wire (4), the guide wire (4) penetrates into the guide wire adjusting device installing pipe (600) through the second through hole (7008) in the adjusting device shell (700), and then penetrates into the main pipe (3) through the guide wire adjusting device installing pipe (600).

9. The vessel guiding catheter as recited in claim 1,

an injection auxiliary mechanism (8) is arranged in the tube seat (6), and the injection auxiliary mechanism (8) comprises a sealing cover main part (8034) and an auxiliary mechanism main part (801);

the sealing cover comprises a tube seat (6), a sealing cover mounting cavity (800) is arranged in the tube seat (6), a sealing cover main part (8034) is arranged in the sealing cover mounting cavity (800), the sealing cover main part (8034) comprises a hinge short rod (8000), a hinge adjusting plate (8001) is hinged to the hinge short rod (8000), one end of the hinge adjusting plate (8001) is located at the outer end of the tube seat (6) and located in the sealing cover mounting cavity (800), a reset elastic part (8002) is fixedly connected to the bottom of one end of the hinge adjusting plate (8001) located in the sealing cover mounting cavity (800), one end of the reset elastic part (8002) far away from the hinge adjusting plate (8001) is fixedly connected to the inner wall of the sealing cover mounting cavity (800), a sealing cover adjusting rack (8003) is fixedly connected to the hinge adjusting plate (8001), and a first rotating shaft (8004) is rotationally connected to the sealing cover mounting cavity (800), a first adjusting gear (8005) and a first reel (8006) are keyed on the first rotating shaft (8004), the first adjusting gear (8005) and the sealing cover adjusting rack (8003) are meshed with each other, a sealing cover (8007) is arranged in the sealing cover mounting cavity (800), the sealing cover (8007) is rotatably connected in the sealing cover mounting cavity (800) through a second rotating shaft (8008), a second reel (8009) is keyed on the second rotating shaft (8008), and a winding wire (8010) is wound on the first reel (8006);

an injection mechanism mounting table hole (601) is formed in the tube seat (6), a positioning step (602) is formed in the injection mechanism mounting table hole (601), a liquid injection channel (603) is arranged at the outlet end of the injection mechanism mounting table hole (601), a main tube mounting hole (604) is formed in one end, away from the injection mechanism mounting table hole (601), of the liquid injection channel (603), a main tube body (3) is connected in the main tube mounting hole (604), a first sealing ring (605) is arranged between the main tube mounting hole (604) and the main tube body (3), an auxiliary mechanism mounting cavity (606) is formed in the tube seat (6), and an auxiliary mechanism main body (801) is arranged in the auxiliary mechanism mounting cavity (606);

the auxiliary mechanism main body (801) comprises a clamping assembly (802) and a flow regulating assembly (803), the clamping assembly (802) comprises a first auxiliary rotating shaft (8020), a second driving piece (8021) is arranged on the first auxiliary rotating shaft (8020), a first auxiliary bevel gear (8022) and a second auxiliary bevel gear (8023) are connected to the first auxiliary rotating shaft (8020) in a key manner, a second auxiliary rotating shaft (8024) and a third auxiliary rotating shaft (8025) are connected to the auxiliary mechanism mounting cavity (606) in a rotating manner, the axes of the second auxiliary rotating shaft (8024) and the third auxiliary rotating shaft (8025) are perpendicular to the axis of the first auxiliary rotating shaft (8020), a third auxiliary bevel gear (8026) and a first auxiliary gear (8028) are connected to the second auxiliary rotating shaft (8024) in a key manner, a fourth auxiliary bevel gear (8027) and a second auxiliary gear (8029) are connected to the third auxiliary rotating shaft (8025) in a key manner, the third auxiliary bevel gear (8026) and the fourth auxiliary bevel gear (8027) are respectively meshed with the first auxiliary bevel gear (8022) and the second auxiliary bevel gear (8023), a first auxiliary rack (607) and a second auxiliary rack (608) are connected to two ends of the injection mechanism mounting table hole (601) in the auxiliary mechanism mounting cavity (606) in a sliding manner, and the first auxiliary rack (607) and the second auxiliary rack (608) are respectively meshed with the first auxiliary gear (8028) and the second auxiliary gear (8029);

flow control subassembly (803) include flow control drive gear (8030), be equipped with spout (8031) on supplementary pivot of second (8024), flow control drive gear (8030) pass through spout (8031) feather key is connected in supplementary pivot of second (8024), be equipped with the third driving piece on the feather key, the third driving piece is used for the drive feather key is followed supplementary pivot of second (8024) slides, sliding connection has flow control rack (8033) in auxiliary mechanism installation cavity (606), flow control rack (8033) can with flow control drive gear (8030) intermeshing, flow control rack (8033) can stretch into in main part pipe (3), sealed lid installation cavity (800) with main part pipe (3) communicate with each other and locate to be equipped with second sealing washer (8032).

10. A method of fixing a vessel guiding catheter according to any one of claims 1 to 9, comprising the steps of:

s1: after the vessel guiding catheter is pushed to a target position, a gasket (9) is arranged at the root part of the main body tube (3) outside the skin (12) and is attached to the skin;

s2: sleeving a fixer slide (10) outside the main body pipe (3), placing the fixer slide above the gasket (9), and adhering and fixing the lower surface of the fixer slide (10) to the skin;

s3: sleeving a semicircular pipe sleeve (11) on the part, located on the holder slide (10), of the main body pipe (3), and then adhering and fixing the semicircular pipe sleeve (11) and the upper surface of the holder slide (10) by using a medical adhesive tape.