CN114209962A

CN114209962A - Series connection sacculus pipe

Info

Publication number: CN114209962A
Application number: CN202210071474.XA
Authority: CN
Inventors: 王晓丽; 秦晋辉; 胡义平
Original assignee: Nanyang Second General Hospital
Current assignee: Nanyang Second General Hospital
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-03-22

Abstract

The invention discloses a series balloon catheter, comprising: the right side of the first balloon structure is provided with an adjusting rod, one side of the adjusting rod, which is far away from the first balloon structure, is provided with a communicating pipe, the right side of the communicating pipe is provided with a second balloon structure, one side of the second balloon structure, which is far away from the communicating pipe, is provided with an air inlet end, and the bottom of the air inlet end is provided with a handle structure; and the second balloon structure is consistent with the working mode of the first balloon structure, and the rear balloon of the second balloon structure is wrapped on the outer side of the rear gas ejector pipe. This series connection sacculus pipe is provided with two sacculums on this device, is preceding sacculus and back sacculus respectively, and one is used for closing slowly the narrow blood vessel of expansion when rethread or severe stenosis, and one is at internal carotid artery C1 section distal end, can play the condition of blocking the blood flow, and the switching accessible of two sets of sacculums presses the atress strip and carries out the switching back and forth, has easy operation, simplifies the advantage of operation process.

Description

Series connection sacculus pipe

Technical Field

The invention relates to the field of medical instruments, in particular to a series balloon catheter.

Background

The endovascular interventional embolization technology is the safest and most effective means for treating cerebral arteriovenous vascular malformation at present; the endovascular interventional embolization technology is to obtain vascular access through arterial or venous puncture, enter the site of the malformed focus by using devices such as guide wires, catheters and the like, and then inject liquid embolization agent through a microcatheter to close the diseased site, thereby achieving the purpose of treatment; during embolization, a small amount of back flow of embolization agent is usually required to block the proximal blood supply artery to ensure better dispersion of embolization agent to the target site; however, the backflow of the embolic agent has various risks, the backflow enters blood supply arteries of normal brain tissues to cause cerebral infarction, and the occlusion of the microcatheter causes difficult tube withdrawal or even no tube withdrawal; the risk of backflow is worried about, which often leads to insufficient backflow, so that the embolic agent cannot be fully dispersed and cannot achieve the expected effect.

In order to solve the problems, through search, the patent with the publication number of CN112998799A discloses a detachable balloon catheter, which proposes that a balloon is inflated through a Y-shaped valve side branch so as to seal a proximal blood vessel of a lesion part and prevent the backflow of an embolic agent, and then a main circuit of a connecting valve injects the embolic agent through the inner cavity of the balloon catheter so as to ensure that the embolic agent can be better dispersed to the lesion area and realize more ideal occlusion and embolism; "the balloon catheter in the prior art has several problems;

firstly, the method comprises the following steps: the balloons are arranged into a group, when the balloons are used for propping open a narrower blood vessel, the blood vessel area is filled with blood, so that the visual field of a focus of a patient is blocked, and the balloons are inconvenient to move to a target position;

secondly, the method comprises the following steps: when the saccule is arranged in the blood vessel, the end part of the saccule conduit is not provided with a handle, so that the operation of a doctor is not convenient.

In view of the above, the present invention has been made in view of the above problems.

Disclosure of Invention

The invention provides a series balloon catheter in order to make up for market vacancy.

The present invention is directed to a tandem balloon catheter, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: an in-line balloon catheter comprising:

the right side of the first balloon structure is provided with an adjusting rod, one side of the adjusting rod, which is far away from the first balloon structure, is provided with a communicating pipe, the right side of the communicating pipe is provided with a second balloon structure, one side of the second balloon structure, which is far away from the communicating pipe, is provided with an air inlet end, and the bottom of the air inlet end is provided with a handle structure;

the second balloon structure and the first balloon structure work in the same mode, a rear balloon of the second balloon structure wraps the outer side of the rear jet pipe, a front air pipe and a rear air pipe are respectively arranged in the rear jet pipe, and the front air pipe and the rear air pipe are limited in the rear jet pipe through a limiting sealing gasket;

handle structure, upper airway and lower airway are installed respectively to handle inside of handle structure, and the inside structure of upper airway and lower airway is unanimous, the rectangle strip is installed in the left side of upper airway simultaneously, the rectangle strip is kept away from the one end and the atress strip fixed connection of upper airway, the bent shape pipe end portion and the preceding gas connecting pipe intercommunication of upper airway set up, and the bent shape pipe one end and the intake pipe intercommunication of preceding gas connecting pipe are kept away from, bent shape pipe inside fixed is provided with the seal receptacle, and the inside activity of bent shape pipe is provided with the sealing plug, the sealing plug passes through connecting rod and transmission piece fixed connection simultaneously, reset spring is installed in the connecting rod outside.

Further, first sacculus structure includes preceding sacculus, preceding jet-propelled pipe, trompil, preceding trachea and spacing sealed pad, and preceding trachea arranges the inside of preceding jet-propelled pipe in, and multiunit trompil has evenly been seted up on the outside surface of preceding jet-propelled pipe, and preceding trachea carries on spacingly through spacing sealed pad in the front inside of jet-propelled pipe.

Further, the second sacculus structure includes back sacculus, back gas nozzle and back trachea, and the outside surface of back gas nozzle has evenly seted up the multiunit trompil, and back sacculus parcel is on the gas nozzle of back, back trachea tip and back gas connecting pipe intercommunication, preceding trachea tip and preceding gas connecting pipe intercommunication.

Further, be connected through adjusting pole and communicating pipe between first sacculus structure and the second sacculus structure, adjust the pole and include left pipe, atress ring, spiro union section of thick bamboo, loose tube, spiro union station and sealing washer, and the stress ring is installed to left pipe outside, and left pipe tip and loose tube fixed connection simultaneously, the spiro union section of thick bamboo is installed in the outside of loose tube.

Further, a spiro union section of thick bamboo spiro union is in the inside of spiro union station, and the spiro union station sets up in the inside of communicating pipe, and the inside activity of communicating pipe is pegged graft simultaneously has the movable tube, and the movable tube tip is provided with the sealing washer, and the sealing washer contacts communicating pipe inner wall, is detachable construction between first sacculus structure and the second sacculus structure.

Further, the handle structure includes handle, back gas connection pipe, preceding gas connection pipe, atress strip, rectangle strip, slider, upper airway and lower air flue, and the switching of upper airway and lower air flue is controlled through the atress strip, and upper airway tip and preceding gas connection pipe intercommunication, lower air flue tip and back gas connection pipe intercommunication simultaneously.

Furthermore, the upper side and the lower side of the stress strip are respectively provided with a sliding block, the stress strip is arranged in a limiting groove formed in the handle in a sliding mode through the sliding block on the stress strip, the rectangular strip is provided with a spring, and the stress strip is fixedly connected with the driving block through the rectangular strip.

Furthermore, the upper air flue comprises a curved pipe, a sealing plug, a sealing seat, a return spring, a transmission block, a sliding block, a driving block and a connecting sealing cylinder, a force application inclined plane is arranged on the driving block, and the driving block is in contact with a force application inclined plane arranged in the transmission block through the force application inclined plane on the driving block.

Further, the sliding block is all installed to the both sides of transmission piece, and has seted up the spout on the inner wall of bent shape pipe, and the sliding block slides and sets up in the inside of spout simultaneously, and bent shape pipe is "L" shape setting.

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

1. the front balloon on the first balloon structure is expanded by operating the handle structure, blood at a focus blood vessel is not circulated after the first balloon structure is expanded, so that a narrower part in the blood vessel can be conveniently found by B-ultrasonic, the second balloon structure is arranged at the focus, and the rear balloon is expanded by operating the handle structure, so that the expansion work of the severely narrow blood vessel is completed;

2. the distance between the first balloon structure and the second balloon structure can be adjusted to adapt to the distance between two adjacent groups of focuses;

3. be provided with two sacculums on this device, preceding sacculus and back sacculus respectively, one is used for slowly closing the narrow blood vessel of expansion when rethreading or severe stenosis, and one is at internal carotid artery C1 section distal end, can play the condition of blocking the blood flow, and the switching accessible of two sets of sacculums is pressed the atress strip and is carried out the switching back and forth, has easy operation, simplifies the advantage of operation process.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic view of a first balloon configuration of the present invention;

FIG. 3 is a schematic view of a second balloon configuration of the present invention;

FIG. 4 is a schematic cross-sectional view of a connection structure of an adjustment rod and a communication pipe according to the present invention;

FIG. 5 is a cross-sectional view of an adjustment lever of the present invention;

FIG. 6 is a side view of FIG. 5 of the structure of the present invention;

FIG. 7 is a schematic view of a communication tube of the present invention;

FIG. 8 is a schematic view of a lever handle of the present invention;

FIG. 9 is a schematic upper airway view of the inventive structure;

FIG. 10 is a schematic view of the configuration of the present invention with the curved tubes in communication;

fig. 11 is a cross-sectional view of fig. 10 of the inventive structure.

In the figure: 1. a first balloon structure; 11. an anterior balloon; 12. a front gas ejector tube; 13. opening a hole; 14. the anterior trachea; 15. a limiting sealing gasket; 2. adjusting a rod; 21. a left tube; 22. a stress ring; 23. a screw-connected cylinder; 24. a movable tube; 25. screwing stations; 26. a seal ring; 3. a communicating pipe; 4. a second balloon structure; 41. a posterior balloon; 42. a rear gas injection pipe; 43. a posterior trachea; 5. a gas inlet end; 6. a handle structure; 60. a handle; 61. a back gas connecting pipe; 62. a front gas connecting pipe; 63. a stress strip; 64. a rectangular strip; 65. a slider; 66. an upper airway; 661. a curved tube; 662. a sealing plug; 663. a sealing seat; 664. a return spring; 665. a transmission block; 666. a slider; 667. a drive block; 668. connecting the sealing cylinder; 67. and a lower air passage.

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.

The first embodiment is as follows: referring to fig. 1-11, the present invention provides a technical solution: an in-line balloon catheter comprising: the first balloon structure 1, the second balloon structure 4 and the handle structure 6;

an adjusting rod 2 is installed on the right side of the first balloon structure 1, a communicating pipe 3 is installed on one side, away from the first balloon structure 1, of the adjusting rod 2, a second balloon structure 4 is installed on the right side of the communicating pipe 3, an air inlet end 5 is installed on one side, away from the communicating pipe 3, of the second balloon structure 4, and a handle structure 6 is installed at the bottom of the air inlet end 5;

the working mode of the second balloon structure 4 is the same as that of the first balloon structure 1, the rear balloon 41 of the second balloon structure 4 is wrapped on the outer side of the rear gas injection tube 42, the front gas tube 14 and the rear gas tube 43 are respectively arranged in the rear gas injection tube 42, and the front gas tube 14 and the rear gas tube 43 are limited in the rear gas injection tube 42 through the limiting sealing gasket 15;

handle structure 6's handle 60 is inside installs upper airway 66 and lower airway 67 respectively, and the inside structure of upper airway 66 and lower airway 67 is unanimous, rectangle 64 is installed in the left side of upper airway 66 simultaneously, rectangle 64 keeps away from the one end and the atress strip 63 fixed connection of upper airway 66, the bent shape pipe 661 tip of upper airway 66 and preceding gas connecting pipe 62 intercommunication set up, and bent shape pipe 661 keeps away from preceding gas connecting pipe 62's one end and intake pipe intercommunication, the inside fixed seal receptacle 663 that is provided with of bent shape pipe 661, and the inside activity of bent shape pipe 661 is provided with sealing plug 662, sealing plug 662 passes through connecting rod and transmission block 665 fixed connection simultaneously, reset spring 664 is installed to the connecting rod outside.

When using, hand-hold handle structure 6 on the right side, with first sacculus structure 1, blood vessel focus department is arranged in to second sacculus structure 4, through operation handle structure 6, make preceding sacculus 11 on the first sacculus structure 1 expand, after the inflation of first sacculus structure 1, the blood of focus blood vessel department no longer circulates, be convenient for look for comparatively constrictive part in the blood vessel through the B ultrasound, place focus department in with second sacculus structure 4, through operation handle structure 6, make back sacculus 41 expand, the completion expands the work with the stenotic blood vessel of weight.

The second embodiment is as follows: the first balloon structure 1 includes a front balloon 11, a front air ejector 12, openings 13, a front air tube 14 and a limiting sealing gasket 15, the front air tube 14 is disposed inside the front air ejector 12, a plurality of groups of openings 13 are uniformly formed in the outer side surface of the front air ejector 12, and the front air tube 14 is limited inside the front air ejector 12 through the limiting sealing gasket 15.

As shown in fig. 1-2: the working principle of the first balloon structure 1 is as follows: gas is sprayed out from the end part of the front air pipe 14, so that the gas enters the inner part of the front gas spraying pipe 12, the front balloon 11 is jacked up through the opening 13, the front balloon 11 is expanded into an ellipsoid shape, and the target position is propped or blocked.

The third concrete implementation mode: the second balloon structure 4 includes a rear balloon 41, a rear air injection tube 42 and a rear air tube 43, the outer surface of the rear air injection tube 42 is uniformly provided with a plurality of groups of openings 13, the rear balloon 41 is wrapped on the rear air injection tube 42, the end of the rear air tube 43 is communicated with a rear air connecting tube 61, and the end of the front air tube 14 is communicated with a front air connecting tube 62.

As shown in fig. 1 and 3: second sacculus structure 4 is unanimous with first sacculus structure 1's theory of operation, places back sacculus 41 in the affected part, and gas enters into back trachea 42's inside from back trachea 43 tip, and back trachea 42's inside both sides are sealed through two sets of spacing sealed pads 15 for inside inclosed cavity that forms of back trachea 42, gas in the airtight cavity enters into back sacculus 41 inside from trompil 13, and back sacculus 41 bumps, resumes constrictive blood vessel.

The fourth concrete implementation mode: the first balloon structure 1 and the second balloon structure 4 are connected through the adjusting rod 2 and the communicating tube 3, the adjusting rod 2 comprises a left tube 21, a stress ring 22, a threaded connection tube 23, a movable tube 24, a threaded connection station 25 and a sealing ring 26, the stress ring 22 is installed on the outer side of the left tube 21, the end of the left tube 21 is fixedly connected with the movable tube 24, and the threaded connection tube 23 is installed on the outer side of the movable tube 24.

As shown in fig. 1-7: the first balloon structure 1 and the second balloon structure 4 may be used together for the following conditions: two narrow places are arranged on the blood vessel, the first balloon structure 1 and the second balloon structure 4 can be used for simultaneously opening the two narrow blood vessels, and the operation time is reduced.

The fifth concrete implementation mode: this embodiment is the further injecture of embodiment four, and a spiro union section of thick bamboo 23 spiro union is in the inside of spiro union station 25, and spiro union station 25 sets up in the inside of communicating pipe 3, and 3 inside activities of communicating pipe are pegged graft simultaneously and are had movable tube 24, and movable tube 24 tip is provided with sealing washer 26, and sealing washer 26 and 3 inner wall contacts of communicating pipe are detachable construction between first sacculus structure 1 and the second sacculus structure 4.

As shown in fig. 1-7: when the distance between the first balloon structure 1 and the second balloon structure 4 is adjusted, the stress ring 22 is rotated, so that the screw connecting cylinder 23 rotates inside the screw connecting station 25, and the adjustment work of the alluvial distance between the first balloon structure 1 and the second balloon structure 4 is realized; the distance between the first balloon structure 1 and the second balloon structure 4 can be adjusted to fit the distance between two adjacent groups of lesions.

The sixth specific implementation mode: the first embodiment further defines that the handling structure 6 includes a handle 60, a rear air connecting pipe 61, a front air connecting pipe 62, a stress bar 63, a rectangular bar 64, a slider 65, an upper air duct 66 and a lower air duct 67, wherein the opening and closing of the upper air duct 66 and the lower air duct 67 are controlled by the stress bar 63, the end of the upper air duct 66 is communicated with the front air connecting pipe 62, and the end of the lower air duct 67 is communicated with the rear air connecting pipe 61.

The seventh embodiment: in the sixth embodiment, as a further limitation of the sixth embodiment, the upper and lower sides of the force-bearing bar 63 are both provided with a sliding block 65, the force-bearing bar 63 is slidably disposed in a limiting groove formed in the handle 60 through the sliding block 65 thereon, a spring is mounted on the rectangular bar 64, and the force-bearing bar 63 is fixedly connected with the driving block 667 through the rectangular bar 64.

The specific implementation mode is eight: in this embodiment, as a further limitation of the sixth embodiment, the upper air duct 66 includes a curved pipe 661, a sealing plug 662, a sealing seat 663, a return spring 664, a transmission block 665, a sliding block 666, a driving block 667, and a connecting sealing cylinder 668, and the driving block 667 is provided with an applying inclined surface, and the driving block 667 contacts with the applying inclined surface provided inside the transmission block 665 through the applying inclined surface.

As shown in fig. 8-11: when the upper air passage 66 is in a communicated state, external air enters the front air tube 14 through the upper air passage 66 and the front air connecting tube 62 to perform the opening work on the front balloon 11;

when the lower air passage 67 is in a communicated state, external air enters the rear air tube 43 through the lower air passage 67 and the rear air connecting tube 61 to expand the rear balloon 41;

the specific implementation method nine: this embodiment is the further restriction of embodiment eight, and sliding block 666 is all installed to the both sides of driving block 665, and has seted up the spout on bent pipe 661's the inner wall, and sliding block 666 slides and sets up in the inside of spout simultaneously, and bent pipe 661 is "L" shape setting.

As shown in fig. 8-11: the principle of switching back and forth between the communication and locking of the lower air passage 67 is consistent with the upper air passage 66, and only the communication and locking mechanism of the upper air passage 66 will be described here: the handle 60 is held by the palm, the index finger and the middle finger are respectively placed on the two groups of stress strips 63, the index finger applies force to the stress strips 63, the rectangular strip 64 moves rightwards, the spring on the rectangular strip is compressed, meanwhile, the driving block 667 applies force to the stress inclined plane formed in the transmission block 665 through the force applying inclined plane on the driving block 667, the transmission block 665 moves upwards, the transmission block 665 drives the sealing plug 662 to move upwards and is separated from the sealing seat 663, and the curved pipe 661 is in a communicated state.

Be provided with two sacculums on this device, one is used for slowly closing the dilatation stenosis blood vessel when rethreading or severe stenosis, and one is at internal carotid artery C1 section distal end, can play the condition of blocking the blood flow, and the switching accessible of two sets of sacculums is pressed atress strip 63 and is carried out the switching round trip, has easy operation, simplifies the advantage of operation process.

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 in-line balloon catheter, comprising:

the device comprises a first balloon structure (1), wherein an adjusting rod (2) is installed on the right side of the first balloon structure (1), a communicating pipe (3) is installed on one side, away from the first balloon structure (1), of the adjusting rod (2), a second balloon structure (4) is installed on the right side of the communicating pipe (3), an air inlet end (5) is installed on one side, away from the communicating pipe (3), of the second balloon structure (4), and a handle structure (6) is installed at the bottom of the air inlet end (5);

the working mode of the second balloon structure (4) is consistent with that of the first balloon structure (1), a rear balloon (41) of the second balloon structure (4) is wrapped on the outer side of a rear air injection pipe (42), a front air pipe (14) and a rear air pipe (43) are respectively installed inside the rear air injection pipe (42), and the front air pipe (14) and the rear air pipe (43) are limited inside the rear air injection pipe (42) through a limiting sealing gasket (15);

handle structure (6), upper airway (66) and lower airway (67) are installed respectively to handle (60) inside of handle structure (6), and upper airway (66) and lower airway (67) inside structure are unanimous, rectangle strip (64) are installed in the left side of upper airway (66) simultaneously, rectangle strip (64) are kept away from the one end and the atress strip (63) fixed connection of upper airway (66), bent shape pipe (661) tip and preceding gas connection pipe (62) intercommunication setting of upper airway (66), and bent shape pipe (661) keep away from the one end and the intake pipe intercommunication of preceding gas connection pipe (62), bent shape pipe (661) inside fixed seal receptacle (663) that is provided with, and bent shape pipe (661) inside activity is provided with sealing plug (662), while (662) are through connecting rod and transmission sealing plug block (665) fixed connection, reset spring (664) are installed to the connecting rod outside.

2. The tandem balloon catheter according to claim 1, wherein: first sacculus structure (1) is including preceding sacculus (11), preceding jet-propelled pipe (12), trompil (13), preceding trachea (14) and spacing sealed pad (15), and preceding trachea (14) arrange the inside of preceding jet-propelled pipe (12) in, and multiunit trompil (13) have evenly been seted up on the outside surface of preceding jet-propelled pipe (12), and preceding trachea (14) are inside in the front to carry on spacingly through spacing sealed pad (15).

3. The tandem balloon catheter according to claim 1, wherein: the second balloon structure (4) comprises a rear balloon (41), a rear air injection pipe (42) and a rear air pipe (43), a plurality of groups of open holes (13) are uniformly formed in the outer side surface of the rear air injection pipe (42), the rear balloon (41) is wrapped on the rear air injection pipe (42), the end part of the rear air pipe (43) is communicated with a rear air connecting pipe (61), and the end part of a front air pipe (14) is communicated with a front air connecting pipe (62).

4. The tandem balloon catheter according to claim 1, wherein: connect through adjusting pole (2) and communicating pipe (3) between first sacculus structure (1) and second sacculus structure (4), adjust pole (2) including left pipe (21), atress ring (22), spiro union section of thick bamboo (23), movable tube (24), spiro union station (25) and sealing washer (26), and stress ring (22) are installed in left pipe (21) outside, and left pipe (21) tip and movable tube (24) fixed connection simultaneously, a spiro union section of thick bamboo (23) are installed in the outside of movable tube (24).

5. The tandem balloon catheter according to claim 4, wherein: a screw joint section of thick bamboo (23) spiro union is in the inside of spiro union station (25), and spiro union station (25) set up in the inside of communicating pipe (3), and communicating pipe (3) inside activity is pegged graft simultaneously has movable pipe (24), and movable pipe (24) tip is provided with sealing washer (26), and sealing washer (26) and communicating pipe (3) inner wall contact are detachable construction between first sacculus structure (1) and second sacculus structure (4).

6. The tandem balloon catheter according to claim 1, wherein: handle structure (6) are including handle (60), back gas connection pipe (61), preceding gas connection pipe (62), atress strip (63), rectangle strip (64), slider (65), upper airway (66) and lower air flue (67), and the switching of upper airway (66) and lower air flue (67) is controlled through atress strip (63), and upper airway (66) tip and preceding gas connection pipe (62) intercommunication simultaneously, lower air flue (67) tip and back gas connection pipe (61) intercommunication.

7. The tandem balloon catheter according to claim 6, wherein: the upper side and the lower side of the stress strip (63) are respectively provided with a sliding block (65), the stress strip (63) is arranged in a limiting groove formed in the handle (60) in a sliding mode through the sliding block (65) on the stress strip, a spring is arranged on the rectangular strip (64), and the stress strip (63) is fixedly connected with the driving block (667) through the rectangular strip (64).

8. The tandem balloon catheter according to claim 6, wherein: go up air flue (66) including bent pipe (661), sealing plug (662), seal receptacle (663), reset spring (664), driving block (665), sliding block (666), driving block (667) and connect a sealing cylinder (668), and seted up the application of force inclined plane on driving block (667), driving block (667) is through the inside atress inclined plane contact of seting up of application of force inclined plane on it with driving block (665).

9. The tandem balloon catheter according to claim 8, wherein: sliding block (666) are all installed to the both sides of transmission piece (665), and have seted up the spout on the inner wall of bent pipe (661), and sliding block (666) slide the setting in the inside of spout simultaneously, and bent pipe (661) is "L" shape setting.