CN115105729B - Balloon dilatation catheter convenient for dilatation support - Google Patents
Balloon dilatation catheter convenient for dilatation support Download PDFInfo
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- CN115105729B CN115105729B CN202210901441.3A CN202210901441A CN115105729B CN 115105729 B CN115105729 B CN 115105729B CN 202210901441 A CN202210901441 A CN 202210901441A CN 115105729 B CN115105729 B CN 115105729B
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- 230000008093 supporting effect Effects 0.000 claims abstract description 57
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 12
- 239000003814 drug Substances 0.000 claims description 61
- 238000002347 injection Methods 0.000 claims description 49
- 239000007924 injection Substances 0.000 claims description 49
- 229940079593 drug Drugs 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 17
- 230000010339 dilation Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
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- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a balloon dilatation catheter convenient for dilatation support, which comprises a catheter mechanism and a support mechanism, wherein the catheter mechanism comprises a catheter component and a balloon component, the catheter component comprises a balloon part and a balloon cavity, the balloon part expands thrombus, the balloon cavity is arranged on the balloon part, and the balloon cavity is inflated to increase the volume of the balloon part; the balloon component is arranged on the balloon part and assists the balloon part to move in the blood vessel. This application is through setting up supporting mechanism, make and treat the thrombus using sacculus expansion pipe, and the thrombus is comparatively stubborn, during unable normal expansion, can promote the moving part to the direction of keeping away from the sacculus center pin through support piece's inclined plane and remove, thereby get up the sacculus support of unable normal expansion, make thrombus department by force by the expansion, thereby ensured when using sacculus expansion pipe to treat the thrombus, even the thrombus is comparatively stubborn, still can ensure the normal expansion to the thrombus, thereby ensured the treatment effeciency to the thrombus.
Description
Technical Field
The invention relates to the field of medical catheters, in particular to a balloon dilatation catheter convenient for dilatation and support.
Background
The sacculus expansion pipe is a medical apparatus for thrombus treatment, extends patient's thrombus department along the blood vessel through with the pipe to under the effect of inflation expansion, make the thrombus extruded and enlarge, make blood can normally circulate, stretch out through the sacculus intermediate layer simultaneously and go on the medicine to thrombus department, in order to accelerate the treatment to the thrombus.
Traditional sacculus expansion pipe is when using, because the inside air pressure of sacculus needs slow increase to come outwards expand thrombus department, nevertheless to comparatively stubborn thrombus, exert pressure to the sacculus, lead to there being the thrombus can't be taken place by the condition of normal expansion when the treatment, and influence sacculus intermediate layer and expand, lead to unable medicine of adding medicine, influence treatment effeciency, and when transporting the medicine through the sacculus intermediate layer, the medicine drops easily, lead to unable treatment to thrombus department, and there is the side effect to the human body.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a balloon dilatation catheter convenient for dilatation support.
The invention discloses a balloon dilatation catheter convenient for dilatation support, which comprises
The catheter mechanism comprises a catheter component and a balloon component, the catheter component comprises a balloon part and a balloon cavity, the balloon part expands thrombus, the balloon cavity is arranged on the balloon part, and the balloon cavity is inflated to increase the volume of the balloon part; the balloon component is arranged on the balloon part and assists the balloon part to move in the blood vessel; and
supporting mechanism, it includes supporting component, supporting component includes moving part, support piece, notes air cavity, notes gas groove and seals the piece, the sacculus chamber is located to the moving part, and the moving part supports the sacculus chamber through the central line of keeping away from the sacculus chamber to make its expansion, support piece sets up in the sacculus subassembly, and support piece's one end and moving part contact, and the contact surface is the inclined plane, support piece removes to the sacculus intracavity, applys thrust to the moving part, the gas injection chamber sets up in the sacculus subassembly, and the one end and the external intercommunication of notes air cavity, notes gas groove sets up in support piece, and the both ends in gas injection groove communicate with notes air cavity and sacculus chamber respectively, the piece that seals sets up in notes gas groove, the piece that seals controls notes gas groove switches on or seals.
According to an embodiment of the present invention, the supporting mechanism further includes a rotating component, the rotating component includes a threaded cavity and a driving member, the threaded cavity is disposed on the supporting member, the driving member is disposed on the threaded cavity, and the outer end thread of the driving member is the same as the threaded cavity, so that when the driving member moves relative to the supporting member, the supporting member can be driven to rotate through the threaded cavity.
According to an embodiment of the present invention, the rotating assembly further includes a guiding element, the guiding element is disposed on the moving element and located at an end of the moving element away from the supporting element, and the guiding element guides and fixes the movement and rotation of the moving element.
According to an embodiment of the invention, the medicine bag further comprises an auxiliary mechanism, the auxiliary mechanism comprises a medicine outlet assembly, the medicine outlet assembly comprises a medicine storage cavity and a medicine outlet hole, the medicine storage cavity is arranged on the balloon piece and located on the outer side of the balloon cavity, medicines are stored in the medicine storage cavity, and the medicine outlet hole is formed in the balloon cavity and communicates the medicine storage cavity with the outside.
According to an embodiment of the present invention, the auxiliary mechanism further includes a reset assembly, the reset assembly includes an elastic member and a fixing seat, the elastic member is disposed in the air injection cavity, the fixing seat is disposed in the air injection cavity, and two ends of the fixing seat are respectively connected to the air injection cavity and one end of the driving member away from the threaded cavity.
According to an embodiment of the invention, the support assembly further comprises an auxiliary groove, the auxiliary groove is arranged on the balloon assembly, and two ends of the auxiliary groove are respectively communicated with the balloon cavity and the bottom of the sealing block.
According to one embodiment of the invention, the movable piece is in a shape of a Chinese character 'tu', and the length of the protruding end is smaller than the width of the medicine storage cavity.
According to an embodiment of the present invention, the rotating assembly further includes a limiting member, the limiting member is connected to the elastic member, and the other end of the limiting member is located in the driving member to limit the driving member to move only in a lateral direction.
According to an embodiment of the present invention, the middle of the fixing base is provided with a communication hole, and the aperture of the communication hole is smaller than that of the gas injection groove.
According to an embodiment of the present invention, the balloon assembly includes a catheter member and a pushing member, the catheter member is connected to one end of the balloon member and guides the balloon member along the blood vessel, and the pushing member is connected to the other end of the balloon member and applies a pushing force to the balloon member to move in the blood vessel.
The beneficial effect of this application lies in: through setting up supporting mechanism, make and treat the thrombus using sacculus expansion pipe, and the thrombus is comparatively stubborn, during unable normal expansion, can promote the moving part to the direction removal of keeping away from the sacculus center pin through support piece's inclined plane, thereby get up the sacculus of unable normal expansion, make thrombus department by force by the expansion, thereby ensured when using sacculus expansion pipe to treat the thrombus, even the thrombus is comparatively stubborn, still can ensure the normal expansion to the thrombus, thereby ensured the treatment effeciency to the thrombus.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural view of a balloon dilation catheter which facilitates support by dilation in an embodiment;
FIG. 2 is a schematic view of the balloon dilation catheter of an embodiment for facilitating support by dilation;
FIG. 3 is a schematic view of the supporting member according to the embodiment;
FIG. 4 is an enlarged view of the structure at A in FIG. 1;
FIG. 5 is a schematic cross-sectional view at B-B in FIG. 1.
In the attached drawings, 1-a conduit mechanism, 2-a supporting mechanism and 3-an auxiliary mechanism;
11-a catheter assembly, 12-a balloon assembly;
21-a support assembly, 22-a rotating assembly;
31-a medicine discharging component, 32-a resetting component;
111-balloon member, 112-balloon lumen;
121-a catheter member, 122-a pusher member;
211-a movable piece, 212-a supporting piece, 213-an air injection cavity, 214-an air injection groove, 215-a sealing block and 216-an auxiliary groove;
221-threaded cavity, 222-driver, 223-guide, 224-defining piece;
311-a medicine storage cavity and 312-a medicine outlet hole;
321-elastic part, 322-fixing seat.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such practical details are not necessary. In addition, for the purpose of simplifying the drawings, certain well-known and conventional structures and components are shown in the drawings in a simplified schematic manner.
It should be noted that all directional indicators in the embodiments of the present invention, such as upper, lower, left, right, front and rear \8230; \8230, are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are used for descriptive purposes only, do not specifically refer to an order or sequence, and do not limit the present invention, but merely distinguish elements or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit identification of the 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 between various embodiments may 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, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 and 2 and fig. 4, fig. 1 is a schematic structural view of a balloon dilatation catheter for facilitating dilatation and support in an embodiment, fig. 2 is a schematic usage state of the balloon dilatation catheter for facilitating dilatation and support in an embodiment, and fig. 4 is an enlarged schematic structural view at a position in fig. 1. The balloon dilatation catheter convenient for dilatation support in the embodiment comprises a catheter mechanism 1 and a support mechanism 2, wherein the catheter mechanism 1 comprises a catheter component 11 and a balloon component 12, the catheter component 11 comprises a balloon part 111 and a balloon cavity 112, the balloon part 111 expands thrombus, the balloon cavity 112 is arranged on the balloon part 111, and the balloon cavity 112 is inflated to enlarge the volume of the balloon part 111 so as to expand the thrombus; the balloon component 12 is arranged on the balloon part 111 and assists the balloon part 111 to move in the blood vessel; the support mechanism 2 includes a support assembly 21, the support assembly 21 includes a movable member 211, a support member 212, an air injection cavity 213, an air injection groove 214 and a sealing block 215, the movable member 211 is disposed in the balloon cavity 112, and the movable member 211 supports the balloon cavity 112 through a central line far away from the balloon cavity 112 and expands the balloon cavity, the movable member 211 is normally disposed in the middle of the balloon cavity 112, and the number of the balloon cavities 112 is at least two, so that the balloon cavity 112 can be uniformly expanded when the movable member 211 supports and expands the balloon cavity 112, the support member 212 is disposed in the balloon component 12, one end of the support member 212 is in contact with the movable member 211, and a contact surface is an inclined surface, the support member 212 moves into the balloon cavity 112 and applies a thrust to the movable member 211, in a normal state, the support member 212 is disposed in the balloon component 12, when the balloon member 111 is supported and expanded by the support mechanism 2, the support member 212 moves into the balloon cavity 112, under the action that the contact surface of the support member 212 and the movable member 211 is an inclined surface, the movable member 211 is pushed in the direction away from the balloon cavity 112, so that the balloon cavity 112 is forced to push thrombus to expand, the gas injection cavity 213 is arranged on the balloon component 12, one end of the gas injection cavity 213 is communicated with the outside, the gas injection groove 214 is arranged on the support member 212, two ends of the gas injection groove 214 are respectively communicated with the gas injection cavity 213 and the balloon cavity 112, a gas injection device is arranged at the end of the gas injection cavity 213 connected with the outside, so that gas can be injected into the balloon cavity 112 through the gas injection cavity 213 and the gas injection groove 214 to expand the balloon cavity, the support mechanism 2 can be controlled to start after the pressure in the balloon cavity 112 reaches a certain strength, the hard thrombus is forcibly expanded, the sealing block 215 is arranged in the gas injection groove 214, one end of the sealing block 215 is positioned in the balloon component 12 in a normal state, and the other end of the sealing block 215 is positioned in the gas injection groove 214, the driving part 222 can be limited through the sealing block 215, so that when the air pressure in the balloon cavity 112 is in a smaller state, the air injection groove 214 is in a conducting state, the sealing block 215 controls the air injection groove 214 to be conducted or sealed, after the air pressure in the balloon cavity 112 reaches a specified strength, the sealing block 215 blocks the air injection groove 214 under the action of the air pressure, and therefore the subsequent air injected into the air injection cavity 213 can exert thrust on the supporting part 212, and the supporting mechanism 2 can forcibly expand the balloon part 111.
Preferably, the support assembly 21 further includes an auxiliary groove 216, the auxiliary groove 216 is disposed in the balloon assembly 12, two ends of the auxiliary groove 216 are respectively communicated with the balloon cavity 112 and the bottom of the sealing block 215, so that when the balloon 111 expands to expand the thrombus when gas is injected into the balloon cavity 112, and the pressure in the balloon cavity 112 is increased to a predetermined amount under the action of the stubborn thrombus, the excessive pressure can move into the auxiliary groove 216 and push up the sealing block 215, so that the sealing block 215 seals the limiting member 224, and when the subsequent gas is injected, the support member 212 can be pushed to move into the balloon cavity 112 under the action of the pressure, thereby ensuring the support mechanism 2 to work and expanding the balloon 111.
Referring to fig. 3, fig. 3 is a schematic structural view of the supporting member in the embodiment. The supporting mechanism 2 further includes a rotating component 22, the rotating component 22 includes a threaded cavity 221 and a driving component 222, the threaded cavity 221 is disposed on the supporting component 212, the driving component 222 is disposed on the threaded cavity 221, and the outer end thread of the driving component 222 is the same as the threaded cavity 221, so that when the driving component 222 moves relative to the supporting component 212, the supporting component 212 can be driven to rotate through the threaded cavity 221, and the driving component 222 can only move relative to the supporting component 212 when the supporting component 212 is located in the balloon cavity 112, and further drives the supporting component 212 to rotate, thereby driving the movable component 211 to rotate, so that the balloon cavity 112 is uniformly expanded, and further enhancing the expansion effect on thrombus.
Preferably, the thread of the thread cavity 221 is relatively smooth, and when the gas injection groove 214 drives the support 212 to rotate through the thread cavity 221, the rotation angle is matched with the number of the movable members 211, for example, the number of the movable members 211 is four, and the rotation angle of the support 212 driven by the gas injection groove 214 is ninety degrees.
Preferably, the upper end and the lower end of the supporting member 212 are provided with grooves, and the supporting member 212 is engaged with the balloon assembly 12, so that when the supporting member 212 is located in the balloon assembly 12, the supporting member 212 can be engaged with the balloon assembly 12 through the grooves, thereby limiting the supporting member 212 to move only in the lateral direction, and when the supporting member 212 moves into the balloon cavity 112, the supporting member 212 is in contact with the supporting member 12, so that the supporting member 212 can rotate only in the balloon cavity 112.
Referring to fig. 1 and fig. 2 again, the rotating assembly 22 further includes a guiding element 223, the guiding element 223 is disposed on the moving element 211 and is located at an end of the moving element 211 far from the supporting element 212, the guiding element 223 guides and fixes the moving element 211 to move and rotate, the guiding element 223 is disc-shaped, the moving element 211 moves along a groove formed on a surface of the moving element, and when the driving element 222 drives the supporting element 212 to rotate, the driving element 223 can transmit a force to drive the moving element 211 to rotate.
Preferably, the opening of the air injection groove 214 at the left end of the support member 212 is square, so that after the support member 212 moves into the balloon cavity 112 under the action of thrust, the support member can be just clamped with a square block protruding from the middle of the guide member 223, so that when the support member 212 rotates under the action of the air injection groove 214 and the threaded cavity 221, the guide member 223 can drive the movable member 211 to rotate synchronously, and further the support effect on the balloon member 111 is enhanced.
Referring to fig. 1 and fig. 2 again, the balloon dilatation catheter convenient for dilatation support further comprises an auxiliary mechanism 3, the auxiliary mechanism 3 comprises a medicine outlet component 31, the medicine outlet component 31 comprises a medicine storage cavity 311 and a medicine outlet hole 312, the medicine storage cavity 311 is arranged on the balloon component 111 and is located on the outer side of the balloon cavity 112, medicines are stored in the medicine storage cavity 311, the medicine outlet hole 312 is arranged on the medicine outlet hole 312 of the balloon cavity 112 to communicate the medicine storage cavity 311 with the outside, the aperture of the medicine outlet hole 312 is small, and a film formed by liquid surface tension is adhered to the middle layer of the medicine outlet hole, so that when the medicines in the medicine storage cavity 311 are not pressurized, the medicine storage cavity 311 can be separated from the outside by the film, thereby preventing the medicines from leaking outwards, and when the pressure in the balloon cavity 112 is increased or the movable piece 211 applies pressure to the balloon component 111, the medicines can be extruded outwards through the medicine outlet hole 312, thereby accurately treating the thrombus.
Referring to fig. 1 and fig. 2 again, the auxiliary mechanism 3 further includes a reset assembly 32, the reset assembly 32 includes an elastic member 321 and a fixing seat 322, the elastic member 321 is disposed in the air injection cavity 213, the fixing seat 322 is disposed in the air injection cavity 213, and two ends of the fixing seat 322 are respectively connected with the air injection cavity 213 and one end of the driving member 222 far away from the threaded cavity 221, so that after the driving member 222 completes expansion and rotation of the supporting mechanism 2, the whole supporting mechanism 2 can be reset through the fixing seat 322, and after the balloon member 111 is replaced, the supporting mechanism 2 can be forcibly expanded to thrombus repeatedly, thereby ensuring what the supporting mechanism 2 is used.
Preferably, the movable part 211 is in a shape of a Chinese character 'tu', and the length of the protruding end is smaller than the width of the medicine storage cavity 311, so that no matter how the balloon 111 deforms, pressure can be applied to the medicine storage cavity 311, so that when the movable part 211 moves to the outermost end, pressure can be applied to the medicine storage cavity 311, the medicine in the medicine storage cavity 311 is extruded out through the medicine outlet hole 312, and the extrusion effect of the medicine in the medicine storage cavity 311 is further enhanced under the action of the driving part 222 driving the movable part 211 to rotate.
Referring to fig. 5, fig. 5 is a schematic cross-sectional view at B-B in fig. 1. The rotating assembly 22 further comprises a limiting member 224, the limiting member 224 is connected to the elastic member 321, and the other end of the limiting member 224 is located in the driving member 222, so as to limit the driving member 222 to move only laterally.
Preferably, the middle of the fixing base 322 is provided with a communicating hole, and the aperture of the communicating hole is smaller than that of the gas injection groove 214, so that when the gas is injected into the balloon cavity 112 through the limiting piece 224, only a small amount of gas can be injected through the communicating hole in the middle of the fixing base 322, and the increase amount of the gas in the balloon cavity 112 is slow.
Referring to fig. 1 and 2 again, the balloon assembly 12 includes a catheter member 121 and a pushing member 122, the catheter member 121 is connected to one end of the balloon member 111 and guides the balloon member 111 along the blood vessel, and the pushing member 122 is connected to the other end of the balloon member 111 and applies a pushing force to the balloon member 111 to move in the blood vessel.
Referring to fig. 1 and fig. 2 again, when thrombus is treated by the balloon dilatation catheter, the catheter assembly 11 is moved to the thrombus site along the blood vessel by the assistance of the balloon assembly 12, then the air is injected into the balloon cavity 112 through the air injection cavity 213 and the air injection groove 214, so that the volume of the balloon member 111 is increased, the thrombus is expanded, and when the pressure in the balloon cavity 112 increases to a certain strength, the sealing block 215 moves into the air injection groove 214 under the action of the air pressure, is separated from the balloon assembly 12, blocks the air injection groove 214, so that the support member 212 is pushed by the subsequent air pressure to move into the balloon cavity 112, and under the action of the support assembly 21, the movable member 211 moves in a direction away from the centerline of the balloon cavity 112, so that the balloon member 111 forcibly expands the thrombus, and the drug in the drug storage cavity 311 is extruded to the thrombus site through the drug outlet 312 for treatment; after the supporting member 212 moves into the balloon cavity 112, the driving member 222 moves relative to the supporting member 212, so that the supporting mechanism 2 is rotated by the rotating assembly 22, thereby enhancing the supporting effect and completely enhancing the therapeutic effect of the medicine in the medicine storage cavity 311.
To sum up: through setting up supporting mechanism, make and treat the thrombus using sacculus expansion pipe, and the thrombus is comparatively stubborn, during unable normal expansion, can promote the direction removal of moving part to keeping away from the sacculus center pin through support piece's inclined plane, thereby the sacculus that will unable normal expansion supports, make thrombus department by force expanded, thereby ensured when using sacculus expansion pipe to treat the thrombus, even the thrombus is comparatively stubborn, still can ensure the normal expansion to the thrombus, thereby ensured the treatment effeciency to the thrombus.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A balloon dilatation catheter facilitating dilatation support is characterized by comprising
The catheter mechanism (1) comprises a catheter component (11) and a balloon component (12), wherein the catheter component (11) comprises a balloon part (111) and a balloon cavity (112), the balloon part (111) expands thrombus, the balloon cavity (112) is arranged on the balloon part (111), and the balloon cavity (112) is inflated to increase the volume of the balloon part (111); the balloon component (12) is arranged on the balloon part (111) and assists the balloon part (111) to move in the blood vessel; and
the supporting mechanism (2) comprises a supporting component (21), the supporting component (21) comprises a moving part (211), a supporting part (212), a gas injection cavity (213), a gas injection groove (214) and a sealing block (215), the moving part (211) is arranged in the balloon cavity (112), the moving part (211) supports the balloon cavity (112) through a center line far away from the balloon cavity (112) and enables the balloon cavity to expand, the supporting part (212) is arranged on the balloon component (12), one end of the supporting part (212) is in contact with the moving part (211), the contact surface is an inclined surface, the supporting part (212) moves towards the inside of the balloon cavity (112) and applies thrust to the moving part (211), the gas injection cavity (213) is arranged on the balloon component (12), one end of the gas injection cavity (213) is communicated with the outside, the gas injection groove (214) is arranged on the supporting part (212), two ends of the gas injection groove (214) are respectively communicated with the gas injection cavity (213) and the balloon cavity (112), the sealing block (215) is arranged on the gas injection groove (215), and the sealing block (214) is communicated or closed; the supporting mechanism (2) further comprises a rotating assembly (22), the rotating assembly (22) comprises a threaded cavity (221) and a driving piece (222), the threaded cavity (221) is arranged on the supporting piece (212), the driving piece (222) is arranged on the threaded cavity (221), threads at the outer end of the driving piece (222) are the same as those of the threaded cavity (221), and when the driving piece (222) moves relative to the supporting piece (212), the supporting piece (212) can be driven to rotate through the threaded cavity (221); the rotating assembly (22) further comprises a guide piece (223), the guide piece (223) is arranged on the moving piece (211) and is located at one end, far away from the supporting piece (212), of the moving piece (211), and the guide piece (223) guides and fixes the moving piece (211) to move and rotate; the supporting assembly (21) further comprises an auxiliary groove (216), the auxiliary groove (216) is arranged on the balloon assembly (12), and two ends of the auxiliary groove (216) are respectively communicated with the bottom of the balloon cavity (112) and the bottom of the sealing block (215);
the auxiliary mechanism (3) comprises a reset assembly (32), the reset assembly (32) comprises an elastic piece (321) and a fixed seat (322), the elastic piece (321) is arranged in the gas injection cavity (213), the fixed seat (322) is arranged in the gas injection cavity (213), and two ends of the fixed seat (322) are respectively connected with one end, far away from the threaded cavity (221), of the gas injection cavity (213) and the driving piece (222).
2. The balloon dilatation catheter convenient for dilatation support according to claim 1, wherein the auxiliary mechanism (3) comprises a drug discharging component (31), the drug discharging component (31) comprises a drug storing cavity (311) and a drug discharging hole (312), the drug storing cavity (311) is arranged on the balloon member (111) and located outside the balloon cavity (112), the drug is stored in the drug storing cavity (311), and the drug discharging hole (312) is arranged in the balloon cavity (112) and communicates the drug storing cavity (311) with the outside through the drug discharging hole (312).
3. The balloon dilatation catheter convenient for dilatation support according to claim 2 wherein the movable piece (211) is in a shape of a Chinese character 'tu' and the length of the protruding end is smaller than the width of the drug storage cavity (311).
4. The balloon dilation catheter for facilitating dilation support of claim 1, wherein the rotation assembly (22) further comprises a limiting member (224), the limiting member (224) is connected with the elastic member (321), and the other end of the limiting member (224) is located in the driving member (222) to limit the driving member (222) to move only in a lateral direction.
5. The balloon dilatation catheter convenient for dilatation support according to claim 1, wherein the middle of the fixed seat (322) is provided with a communication hole, and the aperture is smaller than that of the air injection groove (214).
6. The balloon dilatation catheter for facilitating the dilatation support according to claim 1, wherein the balloon assembly (12) comprises a catheter member (121) and a pushing member (122), the catheter member (121) is connected with one end of the balloon member (111) and guides the balloon member (111) along the blood vessel, the pushing member (122) is connected with the other end of the balloon member (111) and applies a pushing force to the balloon member (111) to move in the blood vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901441.3A CN115105729B (en) | 2022-07-28 | 2022-07-28 | Balloon dilatation catheter convenient for dilatation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901441.3A CN115105729B (en) | 2022-07-28 | 2022-07-28 | Balloon dilatation catheter convenient for dilatation support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115105729A CN115105729A (en) | 2022-09-27 |
| CN115105729B true CN115105729B (en) | 2023-04-11 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090171284A1 (en) * | 2007-12-27 | 2009-07-02 | Cook Incorporated | Dilation system |
| EP2528653B1 (en) * | 2010-01-28 | 2019-04-24 | Cook Medical Technologies LLC | Apparatus for destruction of vascular thrombus |
| CN109620349A (en) * | 2018-12-31 | 2019-04-16 | 邓萍 | A kind of flushable thrombus dredging structure |
| CN112914677B (en) * | 2019-12-07 | 2022-03-08 | 贵州医科大学附属医院 | Double-balloon injection catheter instrument for thrombolysis of blood vessel |
| CN215024939U (en) * | 2021-02-26 | 2021-12-07 | 烟台闻方生物科技有限公司 | Coronary artery sacculus expansion pipe |
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| Publication number | Publication date |
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| CN115105729A (en) | 2022-09-27 |
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Effective date of registration: 20231220 Address after: Building 301 and 401, Building B, Shenchanggang Investment Co., Ltd., No. 8 Jinlong 1st Road, Baolong Community, Baolong Street, Longgang District, Shenzhen City, Guangdong Province, 518100 Patentee after: SHENZHEN SHUNMEI MEDICAL Co.,Ltd. Address before: No.106, Zhongshan 2nd Road, Yuexiu District, Guangzhou, Guangdong 510000 Patentee before: GUANGDONG GENERAL Hospital Patentee before: SHENZHEN SHUNMEI MEDICAL Co.,Ltd. |