CN110604638A - Multilayer sacculus support - Google Patents

Abstract

The invention discloses a multilayer saccule bracket, which comprises a soft catheter, a bracket component and an inflation component, wherein a plurality of vent holes are formed in the outer part of the soft catheter, a gas barrier sheet is fixed on one side wall of each vent hole through laser fusion, the gas barrier sheet covers the vent holes, the bracket component comprises a pressure saccule, metal fixing frames are arranged on two sides of the pressure saccule, fixing blocks are uniformly arranged on the outer part of the soft catheter, the metal fixing frames are mutually clamped with the fixing blocks, the pressure saccule covers the outer part of the vent holes, a plurality of circular baffle plates are fixed on the inner wall of the soft catheter through welding, the circular baffle plates are correspondingly distributed on two sides of the vent holes and divide the soft catheter into a plurality of chambers, the inflation component comprises a plurality of vent pipes, and the vent pipes are annularly distributed in the soft catheter, has the characteristics of accurate size and adjustable diameters of all parts.

Description

Multilayer sacculus support

Technical Field

The invention relates to the technical field of coronary artery lesion treatment, in particular to a multilayer saccule support.

Background

Coronary stents have been widely used to treat light-mounted arterial stenosis. The coronary artery intervention operation utilizes the mechanical expansion effect of the pressure saccule to enlarge a narrow lumen, reduce the elastic retraction and the re-deformation of a blood vessel and keep the blood vessel unobstructed. The working process comprises three steps of entering, expanding and serving of the stent.

At present, most commercial stents only have a few sizes to choose from, and the stenosis degree of coronary artery is a continuous variable, so that when the stenosis vessel and the size of the stent cannot be matched accurately, a doctor can only estimate which size of the stent is just suitable for vessel opening. Because the individual difference of coronary arteries of a patient is large, if the selected stent is not appropriate, adverse reactions such as poor adherence, incomplete expansion, falling displacement, blood flow interference and the like can occur on the stent; in addition, after the existing balloon stent is expanded, the diameters of all branch stents are the same, and when clinical lesions such as calcification of a blood vessel wall or severe stenosis are encountered, the same pressure can cause larger mechanical stimulation to the blood vessel, so that potential safety hazards are caused. Therefore, there is a need for a multilayer ballstent that is accurate in size and adjustable in diameter of each section.

Disclosure of Invention

The invention aims to provide a multilayer saccule support to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a multilayer sacculus support, includes soft pipe, bracket component and inflation assembly, a plurality of air vent has been seted up to the outside of soft pipe, a lateral wall of air vent is fixed with the gas barrier piece through laser fusion, and the gas barrier piece covers on the air vent, and the gas barrier piece is the elasticity material, and when soft pipe is inside aerifys, its pressure backs up the gas barrier piece and emits gas through the air vent, and the gas barrier piece kick-backs and blocks the air vent and prevent gas reflux when ventilating to finish, and the segmentation is full of the gasbag and prevents disappointing when making things convenient for the treatment.

Further, the bracket component includes the pressure sacculus, the both sides of pressure sacculus are provided with the fixed frame of metal, the outside of soft pipe evenly is provided with the fixed block, the mutual block of fixed frame of metal and fixed block, the pressure sacculus covers in the outside of air vent, only needs block the fixed frame of metal or pull away from the fixed block when the pressure sacculus is dismantled in the installation, is convenient for rationally arrange the quantity of pressure sacculus according to pathological change department length, carries out the accurate adjustment according to coronary artery's individuation difference to the length that the support ring expandes.

Further, the inner wall of hose has a plurality of circular baffle through welded fastening, circular baffle corresponds and distributes in the both sides of air vent, and circular baffle separates into a plurality of cavities with the hose, the subassembly of aerifing includes a plurality of breather pipe, the breather pipe is the annular distribution in the inside of hose, and the one end of each breather pipe stretches into different cavities, and different breather pipes let in gas respectively different cavities, realize the orderly gassing of filling of pressure sacculus.

Further, a support ring is arranged outside the pressure balloon, the support ring is of a net structure made of elastic plastic materials, the support rings are provided with two axial corolla protruding outwards, the axial corolla on the two support rings are connected by laser fusion, the connection of the support rings is realized by the unique shape design of the support rings and the axial corolla which can be symmetrically distributed at two symmetrical positions of the support rings, so that the deformation is uniform, the support ring is used as a device remained in a human body and has excellent radial supporting force and conveying flexibility, when the interior of the pathological change pipe wall is pressed by the pressure saccule, the pathological change pipe wall can be uniformly opened outwards to open the pathological change pipe wall and provide deformation space for each support ring, when clinical lesions such as calcification of vessel walls or severe stenosis occur, different mechanical stimuli are given to the vessels to ensure the vessels to be stably transited, and potential safety hazards caused by stress concentration of the walls of the lesions are avoided.

Further, the square hole has evenly been seted up to circumference on support ring and the axial corolla, it has the binding hoop to peg graft in the square hole, the draw-in groove has been seted up to one end of binding hoop, the inner wall of draw-in groove is provided with the first skewed tooth of a plurality of, the another end of binding hoop is provided with thin cassette tape portion, one side of thin cassette tape portion is provided with the second skewed tooth, the second skewed tooth contacts with first skewed tooth, and when the support ring expandes, the binding hoop also expandes, and thin cassette tape portion removes in the draw-in groove, and first skewed tooth contacts with the inclined plane of second skewed tooth this moment, conveniently expandes, because the perpendicular of second skewed tooth and first skewed tooth contacts, because the effect of binding hoop, the support ring can not inwards return when receiving external pressure.

Furthermore, the inflation assembly further comprises an inflator and a piston rod, the inflator is communicated with the vent pipe, an external thread is arranged on the piston rod, one end of the piston rod is connected with a piston, the piston is in contact with the inner wall of the inflator, the other end of the piston rod is provided with a pushing part, a quantitative ring is screwed outside the piston rod, one side of the quantitative ring is provided with a graduated scale, when the inflation degree is limited, the quantitative ring is rotated while the numerical value of the graduated scale is observed, the rotating position of the quantitative ring is determined by combining the cross section analysis of the blood vessel wall, so that the limit position of the piston is specified, each inflator realizes respective maximum quantification before the operation is started, when the pushing part is extruded, the piston rod moves, the piston moves in the inflator and inflates the vent pipe, when the quantitative ring is in contact with the inflator, the piston rod can not move down, so that different filling degrees can be conveniently achieved for each pressure balloon.

Furthermore, an external thread is formed at one end of the flexible conduit, a sleeve is screwed at one end of the flexible conduit, the sleeve is sleeved outside the inflator pump, a pushing handle is arranged on one side of the sleeve, springs are uniformly arranged outside the pushing handle, fan-shaped baffles are uniformly connected outside the pushing handle through hinges and connected with one end of each spring, the number of the fan-shaped baffles is matched with that of the pushing part, only the pushing handle needs to be pushed when the support is unfolded, the fan-shaped baffles push the pushing part to move, the piston rod pushes the piston to move, and orderly inflation and deflation of the pressure balloon can be realized through one-time operation; before use, the sleeve is mounted to avoid interference with other surgical instruments, the sleeve and the soft catheter are unscrewed after operation is finished, and then all the pushing parts are pulled out to the initial position, so that the operation is simple.

Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,

(1) through being provided with the aeration component, the limit position of rotatory ration ring regulation piston makes each inflator pump realize respective maximum ration before the operation begins, is convenient for reach different filling degree for each gasbag.

(2) Through set up the fixed block on soft pipe, set up the split type with the pressure sacculus, be convenient for rationally arrange the quantity of pressure sacculus according to pathological change department length, be convenient for carry out the accurate adjustment according to coronary artery's individuation difference to the length that the support ring expandes.

(3) Through set up in the support ring and tighten the hoop, tighten the hoop when pressure sacculus is inflated and is opened and open, no longer retract to suitable size after, the size of restriction support ring is convenient for carry out the accurate adjustment to the support ring size according to the vascular diameter, avoids support adherence subalternation problem.

(4) Through the unique shape design of support ring, utilize the connection that each support ring was realized to the axial corolla to give each support ring deformation space, when clinical meeting pathological changes such as vascular wall calcification or serious stenosis, give the different mechanics of blood vessel amazing, make its steady transition, avoid vascular wall stress concentration to cause the potential safety hazard.

(5) Through being provided with sector baffle and spring, only need push away the handle when the support expandes, promote the piston through sector baffle's resistance and remove, once operation can realize that the gasbag fills the gassing in order, easy operation.

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 inflation assembly and support assembly of the present invention;

FIG. 3 is a front view of the inflation assembly of the present invention;

FIG. 4 is a schematic structural view of the support assembly of the present invention;

FIG. 5 is a schematic view of the installation of the flexible catheter and balloon of the present invention;

FIG. 6 is a schematic view of a soft catheter of the present invention in partial cross-section;

FIG. 7 is a schematic view of the support ring construction of the present invention;

figure 8 is a cross-sectional structural schematic view of a tie-down hoop of the present invention;

FIG. 9 is a schematic view of the installation of the support ring of the present invention within the wall of a diseased vessel;

in the figure: 1. a push handle; 11. a fan-shaped baffle plate; 111. a spring; 2. a sleeve; 3. a soft catheter; 31. a vent hole; 32. a fixed block; 33. a gas barrier sheet; 34. a circular baffle; 4. a support assembly; 41. a support ring; 411. axial corolla; 412. a square hole; 42. a balloon; 421. a metal fixing rim; 43. tightening the hoop; 431. a card slot; 432. a first helical tooth; 433. a thin clamping band portion; 434. a second helical tooth; 5. an inflation assembly; 51. an inflator; 52. a dosing ring; 521. a graduated scale; 53. a piston rod; 531. a pushing part; 532. a piston; 54. a breather pipe; 6. the wall of the diseased vessel.

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.

Referring to fig. 1, the present invention provides a technical solution: a multi-layer saccule support comprises a soft catheter 3, a support component 4 and an inflation component 5, wherein a plurality of vent holes 31 are formed in the outer part of the soft catheter 3, a gas barrier sheet 33 is fixed on one side wall of each vent hole 31 through laser fusion, the gas barrier sheet 33 covers the vent holes 31, the gas barrier sheet 33 is made of elastic materials, when the soft catheter 3 is inflated, the pressure of the soft catheter pushes the gas barrier sheet 33 open to release gas through the vent holes 31, the gas barrier sheet 33 rebounds and blocks the vent holes 31 to prevent the gas from flowing back after the ventilation is finished, and the air bag is filled with air bags in sections to prevent the gas leakage during treatment;

as shown in fig. 5, the bracket assembly 4 includes a pressure balloon 42, metal fixing frames 421 are disposed on two sides of the pressure balloon 42, fixing blocks 32 are uniformly disposed outside the flexible catheter 3, the metal fixing frames 421 are engaged with the fixing blocks 32, the pressure balloon 42 covers the outside of the vent hole 31, when the pressure balloon 42 is mounted and dismounted, the metal fixing frames 421 only need to be clamped or pulled away from the fixing blocks 32, so that the number of the pressure balloons 42 can be reasonably arranged according to the length of a lesion, and the unfolding length of the support ring 42 can be accurately adjusted according to the individual difference of coronary arteries;

as shown in fig. 6, a plurality of circular baffles 34 are fixed on the inner wall of the flexible conduit 3 by welding, the circular baffles 34 are correspondingly distributed on both sides of the vent holes 31, the flexible conduit 3 is divided into a plurality of chambers by the circular baffles 34, the inflation assembly 5 comprises a plurality of vent pipes 54, the vent pipes 54 are annularly distributed in the flexible conduit 3, one end of each vent pipe 54 extends into different chambers, and different vent pipes 54 respectively introduce gas into different chambers, so as to realize orderly inflation and deflation of the pressure balloon 42;

as shown in fig. 4 and 7, the support ring 41 is disposed outside the pressure balloon 42, the support ring 41 is a net structure made of elastic plastic material, the support ring 41 is provided with two axial crowns 411 protruding outwards, the axial crowns 411 on the two support rings 41 are connected by laser fusion, the connection of the support rings 41 is realized by the axial crowns 411 through the unique shape design of the support ring 41, the axial crowns 411 can be symmetrically distributed at two symmetrical positions of the support ring, so that the deformation is uniform, the support ring 41, as a device to be detained in a human body, should have excellent radial support force and delivery flexibility, when the pressure of the pressure balloon 42 is applied to the interior of a diseased tube wall, the support ring opens outwards uniformly to prop open the diseased tube wall 6, and gives a deformation space to each support ring 41, when clinical diseases such as calcification or severe stenosis are encountered, different mechanical stimuli are given to the blood vessel wall to make the blood vessel wall transition, potential safety hazards caused by stress concentration of the lesion tube wall 6 are avoided;

as shown in fig. 4 and 8, square holes 412 are uniformly formed in the circumferential direction of the support ring 41 and the axial crown 411, a tightening band 43 is inserted into the square holes 412, one end of the tightening band 43 is provided with a clamping groove 431, the inner wall of the clamping groove 431 is provided with a plurality of first inclined teeth 432, the other end of the tightening band 43 is provided with a thin clamping band part 433, one side of the thin clamping band part 433 is provided with a second inclined tooth 434, the second inclined tooth 434 is in contact with the first inclined teeth 432, when the support ring 41 is unfolded, the tightening band 43 is also unfolded, the thin clamping band part 433 moves in the clamping groove 431, at this time, the first inclined teeth 432 are in contact with the inclined surfaces of the second inclined teeth 434, so that the support ring 41 is convenient to unfold, and after being unfolded, because the second inclined teeth 434 are in contact with the vertical surfaces of the first inclined teeth 432, the support ring 41 cannot retract inwards under the action;

as shown in fig. 2, the inflation assembly 5 further includes an inflator 51 and a piston rod 53, the inflator 51 is communicated with the vent pipe 54, the piston rod 53 is provided with an external thread, one end of the piston rod 53 is connected with a piston 532, the piston 532 contacts with the inner wall of the inflator 51, the other end of the piston rod 53 is provided with a pushing part 531, a quantitative ring 52 is screwed outside the piston rod 53, one side of the quantitative ring 52 is provided with a scale 521, when the inflation degree is limited, the quantitative ring 52 is rotated while the indication value of the scale 521 is observed, the rotating position of the quantitative ring 52 is determined by combining with the cross-sectional analysis of the blood vessel wall, so as to define the limit position of the piston 532, each inflator 51 realizes the respective maximum quantitative before the operation is started, when the pushing part 531 is squeezed, the piston rod 53 moves, the piston 532 moves in the inflator 51 and inflates the vent pipe 54, when the quantitative ring 52 collides with the inflator 51, the piston rod 53 cannot move downwards, so that different filling degrees can be achieved for the pressure balloons 42;

as shown in fig. 1, an external thread is formed at one end of a flexible conduit 3, a sleeve 2 is screwed at one end of the flexible conduit 3, the sleeve 2 is sleeved outside an inflator 51, a push handle 1 is arranged at one side of the sleeve 2, springs 111 are uniformly arranged outside the push handle 1, fan-shaped baffles 11 are uniformly connected outside the push handle 1 through hinges, the fan-shaped baffles 11 are connected with one end of the springs 111, the number of the fan-shaped baffles 11 is matched with that of the pushing parts 531, when the stent is unfolded, only the push handle 1 needs to be pushed, the fan-shaped baffles 11 push the pushing parts 531 to move, the piston rod 53 pushes the piston 532 to move, and the pressure balloon 42 can be sequentially inflated and deflated through one operation; before use, the sleeve 2 is arranged, so that other surgical instruments are prevented from being interfered, the sleeve 2 and the soft catheter 3 are unscrewed when the operation is finished, and then the pushing parts 531 are pulled out to the initial positions, so that the operation is simple;

the working principle is as follows: when the saccule support is used, when the interior of the soft catheter 3 is inflated, the pressure pushes the gas blocking sheet 33 open to release gas through the vent hole 31, and the gas blocking sheet 33 rebounds and blocks the vent hole 31 to prevent gas from flowing back after the ventilation is finished, so that the air sac is filled in sections to prevent gas leakage during treatment; when the pressure sacculus 42 is mounted and dismounted, the metal fixing frame 421 is only required to be clamped or pulled away from the fixing block 32, so that the number of the pressure sacculus 42 is reasonably arranged according to the length of a lesion, and the unfolded length of the support ring 42 is accurately adjusted according to individual difference of coronary arteries; different vent pipes 54 respectively lead gas into different chambers to realize the orderly inflation and deflation of the pressure balloon 42; when the interior of the wall of the pathological change pipe is pressed by the pressure balloon 42, the pathological change pipe can be uniformly expanded outwards to prop open the wall 6 of the pathological change pipe, and deformation spaces are provided for the support rings 41, the axial crowns 411 can be symmetrically distributed at two symmetrical positions of the support rings, so that the deformation is uniform, the support rings 41 are used as devices left in a human body, and have excellent radial support force and conveying flexibility, and different mechanical stimuli are provided for the blood vessel when the pathological changes such as calcification or severe stenosis of the blood vessel wall are clinically encountered, so that the blood vessel can be stably transited, and potential safety hazards caused by stress concentration of the wall 6 of the; when the support ring 41 is unfolded, the tightening hoop 43 is also unfolded, the thin clamping band part 433 moves in the clamping groove 431, at this time, the first helical tooth 432 is in contact with the inclined surface of the second helical tooth 434, the unfolding is convenient, and after the support ring 41 is unfolded, because the second helical tooth 434 is in contact with the vertical surface of the first helical tooth 432, the support ring 41 cannot retract inwards when being subjected to external pressure due to the action of the tightening hoop 43; when the inflation degree is limited, the quantitative ring 52 is rotated, the indicating value of the graduated scale 521 is observed, the rotating position of the quantitative ring 52 is determined by combining the analysis of the section of the blood vessel wall, so that the limit position of the piston 532 is specified, each inflator 51 realizes the respective maximum quantitative amount before the operation starts, when the pushing part 531 is extruded, the piston rod 53 moves, the piston 532 moves in the inflator 51 and inflates the vent pipe 54, when the quantitative ring 52 and the inflator 51 collide with each other, the piston rod 53 cannot move downwards, and the pressure balloons 42 can reach different inflation degrees conveniently; when the stent is unfolded, the pushing handle 1 is pushed, the fan-shaped baffle 11 pushes the pushing part 531 to move, the piston rod 53 pushes the piston 532 to move, and the sequential inflation and deflation of the pressure balloon 42 can be realized by one-time operation; before use, the sleeve 2 is mounted to avoid interference with other surgical instruments, the sleeve 2 and the soft catheter 3 are unscrewed after operation is finished, and then the pushing parts 531 are pulled out to the initial positions, so that operation is simple.

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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A multilayer saccule support comprises a soft catheter (3), a support component (4) and an inflation component (5), and is characterized in that: the outer part of the soft catheter (3) is provided with a plurality of vent holes (31), one side wall of each vent hole (31) is fixedly provided with a gas barrier sheet (33) through laser fusion, and the gas barrier sheet (33) covers the vent holes (31).

2. The multilayer ballstent of claim 1, wherein: bracket component (4) are including pressure sacculus (42), the both sides of pressure sacculus (42) are provided with the fixed frame of metal (421), the outside of soft pipe (3) evenly is provided with fixed block (32), the fixed frame of metal (421) and the mutual block of fixed block (32), pressure sacculus (42) cover is in the outside of air vent (31).

3. The multilayer ballstent of claim 1, wherein: the inner wall of soft pipe (3) is fixed with a plurality of circular baffle (34) through the welded connection, circular baffle (34) correspond and distribute in the both sides of air vent (31), and circular baffle (34) separate into a plurality of cavities with soft pipe (3), it includes a plurality of breather pipe (54) to inflate subassembly (5), breather pipe (54) are the annular and distribute in the inside of soft pipe (3), and the one end of each breather pipe (54) stretches into different cavities.

4. The multilayer ballstent of claim 2, wherein: the outside of pressure sacculus (42) is provided with support ring (41), support ring (41) are the network structure of elastoplasty material, support ring (41) outwards the protrusion be provided with two axial corolla (411), on two support rings (41) axial corolla (411) are through laser fusion connection.

5. The multilayer ballstent of claim 4, wherein: square holes (412) have evenly been seted up to circumference on support ring (41) and axial corolla (411), it ties tightly hoop (43) to have pegged graft in square hole (412), draw-in groove (431) have been seted up to the one end of tying tightly hoop (43), the inner wall of draw-in groove (431) is provided with the first skewed tooth of a plurality of (432), the another end of tying tightly hoop (43) is provided with thin clamping band portion (433), one side of thin clamping band portion (433) is provided with second skewed tooth (434), second skewed tooth (434) contact with first skewed tooth (432).

6. The multilayer ballstent of claim 3, wherein: inflation assembly (5) still include inflator pump (51) and piston rod (53), inflator pump (51) link up with breather pipe (54) mutually, the external screw thread has been seted up on piston rod (53), the one end of piston rod (53) is connected with piston (532), piston (532) contact with the inner wall of inflator pump (51), the other end of piston rod (53) is provided with pushes away portion (531), the outside spiro union of piston rod (53) has ration ring (52), one side of ration ring (52) is provided with scale (521).

7. The multilayer ballstent of claim 6, wherein: the utility model discloses a flexible gas inflator, including soft pipe (3), sleeve (2), handle (1), fan-shaped baffle (11) and spring (111), the external screw thread has been seted up to the one end of soft pipe (3), the one end spiro union of soft pipe (3) has sleeve (2), sleeve (2) cup joint in the outside of inflator pump (51), one side of sleeve (2) is provided with pushes away handle (1), the outside of pushing away handle (1) evenly is provided with spring (111), the outside of pushing away handle (1) evenly has fan-shaped baffle (11) through hinged joint, fan-shaped baffle (11) are connected with the one end of spring (111).