CN116637277A - Valve shock wave saccule dilating catheter - Google Patents
Valve shock wave saccule dilating catheter Download PDFInfo
- Publication number
- CN116637277A CN116637277A CN202310557947.1A CN202310557947A CN116637277A CN 116637277 A CN116637277 A CN 116637277A CN 202310557947 A CN202310557947 A CN 202310557947A CN 116637277 A CN116637277 A CN 116637277A
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- balloon
- shock wave
- cavity
- catheter
- liquid
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- 230000035939 shock Effects 0.000 title claims abstract description 92
- 210000005077 saccule Anatomy 0.000 title abstract description 16
- 230000000916 dilatatory effect Effects 0.000 title abstract description 13
- 230000017531 blood circulation Effects 0.000 claims abstract description 27
- 230000010339 dilation Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 7
- 239000008280 blood Substances 0.000 claims description 3
- 210000004369 blood Anatomy 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000001356 surgical procedure Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 210000000591 tricuspid valve Anatomy 0.000 description 8
- 208000031481 Pathologic Constriction Diseases 0.000 description 4
- 230000036262 stenosis Effects 0.000 description 4
- 208000037804 stenosis Diseases 0.000 description 4
- 210000003709 heart valve Anatomy 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 208000004434 Calcinosis Diseases 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 230000002308 calcification Effects 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000018578 heart valve disease Diseases 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 241000755093 Gaidropsarus vulgaris Species 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 238000002399 angioplasty Methods 0.000 description 1
- 238000013158 balloon valvuloplasty Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 230000003412 degenerative effect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
Classifications
-
- 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
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
-
- 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
- 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
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/109—Balloon catheters with special features or adapted for special applications having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a valve shock wave saccule dilating catheter which sequentially comprises a tip, a saccule, a dilating catheter and a handle seat from a far end to a near end, wherein a blood flow passage is arranged in the center of the saccule, the blood flow passage is arranged along the axial direction of the saccule and penetrates through the saccule, the cross section of the saccule is circular, a shock wave generator is arranged in a saccule cavity of the saccule, and the far end of the saccule is a closed end; the balloon cavity of the balloon is internally provided with an elastic liquid-passing catheter, the distal end of the liquid-passing catheter is a closed end and is fixedly connected with the distal end of the balloon, the liquid-passing catheter is provided with a plurality of through holes, the shock wave generator is arranged on the liquid-passing catheter, and the shock wave generator is fixed in the balloon cavity of the balloon through the liquid-passing catheter. Compared with the prior art, the device can ensure a certain amount of blood flow to pass through during treatment, avoid completely blocking a blood flow channel, reduce the influence of balloon dilation on blood flow dynamics, ensure the safety of surgery and improve the treatment effect.
Description
Technical Field
The invention relates to a medical instrument, in particular to a valve shock wave saccule dilating catheter.
Background
Heart valves are the basic structure of the heart, and they may suffer from the diseases of insufficiency (regurgitation), valve stenosis, etc. due to congenital or acquired inflammation, etc., and may endanger life when serious. The incidence of degenerative heart valve disease gradually increases, and left ventricular outflow tract obstruction occurs at the end stage of the disease, resulting in heart stroke volume reduction, exercise capacity reduction, heart failure, death due to cardiovascular reasons, and the like. The incidence of valvular stenosis increases with age, with the incidence being only about 0.2% for the 50-59 year old population, and 9.8% for the 80-90 year old population.
The tricuspid valve is a multiple area of heart valve diseases, when the tricuspid valve is calcified, the tricuspid valve can not be well closed, gaps can be formed between the tricuspid valve, upper atrium is caused to leak and press, and blood pressure can not reach expected blood vessel pressure.
While valvuloplasty provides only modest hemodynamic improvement, and the incidence of restenosis is high, long-term survival after surgery is not significantly different from the natural history of valvular stenosis, the focus of currently treating valvular stenosis has been shifted from balloon valvuloplasty to transcatheter valve replacement, but there are still a number of problems at present, including valve durability, retention of coronary artery (coronary) access, formation of valve She Xieshuan, etc., balloon dilation is an important link in surgery, and how to improve the therapeutic effect of valve balloon dilation is the direction of our study.
Disclosure of Invention
The invention aims to provide a valve shock wave saccule dilating catheter, which aims to solve the technical problems of realizing the treatment of calcification of a heart valve, simultaneously keeping a certain amount of blood flow in the treatment process, ensuring the safety of operation and improving the treatment effect.
In order to solve the problems, the invention adopts the following technical scheme: a valve shock wave saccule dilating catheter sequentially comprises a tip, a saccule, a dilating catheter and a handle seat from the distal end to the proximal end,
the center of the balloon is provided with a blood flow passage, the blood flow passage is arranged along the axial direction of the balloon and penetrates through the balloon, so that the cross section of the balloon is circular, a shock wave generator is arranged in the balloon cavity of the balloon, and the distal end of the balloon is a closed end; a liquid-passing catheter with elasticity is arranged in the balloon cavity of the balloon, the distal end of the liquid-passing catheter is a closed end and is fixedly connected with the distal end of the balloon, a plurality of through holes are formed in the liquid-passing catheter, a shock wave generator is arranged on the liquid-passing catheter, and the shock wave generator is fixed in the balloon cavity of the balloon through the liquid-passing catheter;
the distal end of the expansion catheter passes through the blood flow passage and then is fixedly connected with the proximal end of the tip and the closed end of the balloon, the outer diameter of the expansion catheter is smaller than the diameter of the blood flow passage, the proximal end of the balloon and the proximal end of the liquid passing catheter are fixed on the outer wall of the expansion catheter, the proximal end of the catheter is fixedly connected with the distal end of the handle seat, a guide wire cavity and a liquid passing cavity are arranged in the expansion catheter, and the liquid passing cavity is respectively communicated with the balloon cavity of the balloon and/or the lumen of the liquid passing catheter;
the tip has a lumen, and the guidewire lumen is in communication with the lumen of the tip.
Further, the balloon is composed of at least four balloon bodies, the proximal end and the distal end of the balloon bodies are respectively provided with a supporting rod, the distal ends of the balloon bodies are sealing surfaces, the supporting rods are respectively connected and fixed with the tip and the expanding catheter, shock wave generators are arranged in the balloon cavities of at least two balloon bodies, the distal ends of the liquid passing catheters are fixed with the distal ends of the balloon cavities of the balloon bodies in the balloon bodies provided with the shock wave generators, the proximal ends of the liquid passing catheters are fixed with the proximal ends of the balloon cavities of the balloon bodies, the supporting rod communicating cavities communicated with the balloon cavities of the balloon bodies are arranged in the supporting rods at the proximal ends, the proximal ends of the supporting rod communicating cavities on the balloon bodies without the shock wave generators are communicated with the liquid passing cavities, and the proximal ends of the liquid passing catheters in the balloon bodies provided with the shock wave generators are sealed with the proximal ends of the liquid passing catheters.
Further, at least one balloon body without a shock wave generator is arranged between two adjacent balloon bodies with shock wave generators.
Further, the shock wave generators are oppositely arranged in pairs, and one group of the shock wave generators are connected in series.
Further, the shock wave generator comprises an electrode ring, an insulating sleeve and a metal sleeve, wherein the electrode ring is sleeved outside the liquid-passing guide pipe, the insulating sleeve is arranged between the electrode ring and the liquid-passing guide pipe, an insulating layer is coated outside the guide wire, a copper exposure area is arranged on the guide wire, and the metal sleeve is sleeved on the copper exposure area of the guide wire and is pressed and fixed; the electrode ring is provided with at least one shock wave emitting hole, the shock wave emitting hole faces the periphery of the saccule, the copper exposing area of the lead is opposite to the shock wave emitting hole, the position of the insulating sleeve, which is positioned at the shock wave emitting hole, is provided with an exposed hole exposing the metal sleeve part, and the electrode ring, the insulating sleeve and the metal sleeve are filled with gaps through insulating glue and are adhered and fixed outside the liquid-through catheter.
Further, the electrode ring of each shock wave generator consists of two ring bodies which are symmetrically arranged, a connecting part is arranged between the two ring bodies, the connecting part is connected with the two ring bodies, and shock wave emitting holes are respectively arranged on the two ring bodies.
Further, two through holes are arranged on each liquid passing conduit.
Further, the balloon body is arranged in the same number as the balloon body.
Further, the balloon body includes a cylindrical shape disposed in the middle and a tapered shape disposed at the proximal and distal ends of the cylindrical shape, respectively.
Further, the expansion catheter comprises an inner tube and an outer tube, the aperture of the outer tube is larger than the outer diameter of the inner tube, the outer tube is sleeved outside the inner tube, the outer tube and the inner tube are coaxially arranged, the outer tube liquid passing cavity is arranged between the inner tube and the outer tube, the guide wire cavity is formed by the tube cavity of the inner tube, the distal end of the inner tube extends out of the distal end of the outer tube and penetrates through the blood passing flow channel to be connected and fixed with the tip, and the proximal end of the support rod at the proximal end is inserted into the liquid passing cavity from the distal end of the outer tube and is fixed in the liquid passing cavity.
Compared with the prior art, the invention has the advantages that the blood flow passage is arranged in the center of the balloon, the shock wave generator is arranged in the balloon cavity of the balloon, the shock wave generator is fixed in the balloon cavity of the balloon through the liquid flow guide pipe, the calcified part is smashed through the shock wave generator after the balloon is filled, a certain amount of blood flow can be ensured to pass through during treatment by arranging the blood flow passage, the blood flow passage is prevented from being blocked completely, the influence of the balloon dilatation on the blood flow dynamics is reduced, the safety of the operation is ensured, and the treatment effect is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the balloon of the present invention.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a schematic structural view of the shock wave generator of the present invention.
Fig. 5 is a schematic view of the internal structure of the shock wave generator of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
In the present invention, distal refers to the end distal from the operator; proximal refers to the end that is proximal to the operator.
As shown in fig. 1 and 2, the invention discloses a valve shock wave balloon dilation catheter, which sequentially comprises a tip 1, a balloon 2, a dilation catheter 3 and a handle seat 4 from the distal end to the proximal end, wherein:
the center of the balloon 2 is provided with a blood flow passage 21, the blood flow passage 21 is arranged along the axial direction of the balloon 2 and penetrates through the balloon 2, so that the cross section of the balloon 2 is circular, the blood flow passage 21 can realize the treatment of calcification of heart valves and still keep a certain amount of cardiac output when the balloon is expanded, and the blood flow passage is prevented from being completely blocked, so that the influence of balloon dilation on blood flow dynamics is reduced, the occurrence rate of incapacity of blood flow is reduced, a shock wave generator 5 is arranged in the balloon cavity of the balloon 2, and the distal end of the balloon 2 is a closed end; the balloon cavity of the balloon 2 is internally provided with an elastic liquid-passing catheter 22, so that the liquid-passing catheter 22 can be axially stretched when the balloon 2 is expanded, the distal end of the liquid-passing catheter 22 is a closed end and is fixedly connected with the distal end of the balloon 2, the liquid-passing catheter 22 is provided with a plurality of through holes 221, the shock wave generator 5 is arranged on the liquid-passing catheter 22, and the shock wave generator 5 is fixedly arranged in the balloon cavity of the balloon 2 through the liquid-passing catheter 22;
the distal end of the dilating catheter 3 passes through the blood flow passage 21 and then is fixedly connected with the proximal end of the tip 1 and the closed end of the balloon 2, the outer diameter of the dilating catheter 3 is smaller than the diameter of the blood flow passage 21, the proximal end of the balloon 2 and the proximal end of the liquid passing catheter 22 are fixed on the outer wall of the dilating catheter 3, the proximal end of the catheter 3 is fixedly connected with the distal end of the handle seat 4, a guide wire cavity 31 and a liquid passing cavity 32 are arranged in the dilating catheter 3, and the liquid passing cavity 32 is respectively communicated with the balloon cavity of the balloon 2 and the lumen of the liquid passing catheter 22;
the tip 1 is provided with a through cavity, the guide wire cavity 31 is communicated with the through cavity of the tip 1, the tip 1 is composed of a cone and a cylinder, the cylinder is fixedly connected with the distal end of the expansion catheter 3, and the cone is arranged at the distal end of the cylinder;
the handle seat 4 comprises a first interface 41 and a second interface 42, two channels respectively connected with the first interface 41 and the second interface 42 are arranged in the handle seat 4, the first interface 41 is communicated with the guide wire cavity 31 through one channel, the second interface 42 is communicated with the liquid passing cavity 32 through the other channel, the handle seat 4 further comprises an electrifying connector 43, and a wire of the shock wave generator 5 extends to the handle seat 4 through the liquid passing cavity 32 along the outer wall of the liquid passing duct 22 and is electrically connected with the electrifying connector 43.
As shown in fig. 2 and 3, the balloon 2 of the present invention is composed of at least four balloon bodies 23, the whole appearance of the balloon 2 is olive-shaped, the proximal end and the distal end of the balloon bodies 23 are respectively provided with a supporting rod 24, the distal ends of the balloon bodies 23 are respectively connected and fixed with the tip 1 and the expanding catheter 3, the shock wave generator 5 is arranged in the balloon cavities of at least two balloon bodies 23, the distal end of the liquid passing catheter 22 is fixed with the distal end of the balloon cavity of the balloon body 23, the proximal end of the liquid passing catheter 22 is fixed with the proximal end of the balloon cavity of the balloon body 23, the supporting rod 24 at the proximal end is provided with a supporting rod passing cavity 241 communicated with the balloon cavity of the balloon body 23, the proximal end of the supporting rod passing cavity 241 on the balloon body 23 which is not provided with the shock wave generator 5 is communicated with the liquid passing cavity 32, the proximal end of the liquid passing catheter 22 in the balloon body 23 which is provided with the shock wave generator 5 is communicated with the supporting rod passing cavity 241, the proximal end of the balloon body 23 which is provided with the shock wave generator 5 is provided with the liquid passing cavity 22 or the liquid passing through the contracting catheter 221, and the liquid passing through the contracting catheter is carried out.
As shown in fig. 4 and 5, the shock wave generator 5 comprises an electrode ring 51, an insulating sleeve 52 and a metal sleeve 53, wherein the electrode ring 51 is sleeved outside the liquid-passing conduit 22, the insulating sleeve 52 is arranged between the electrode ring 51 and the liquid-passing conduit 22, an insulating layer is coated outside the wire 6, a copper exposure area is arranged on the wire 6, and the metal sleeve 53 is sleeved on the copper exposure area of the wire and is pressed and fixed; at least one shock wave emitting hole 511 is arranged on the electrode ring 51, the shock wave emitting hole 511 faces the periphery of the balloon 2, the copper exposing area of the lead is opposite to the shock wave emitting hole 511, a naked hole 521 for exposing a part of the metal sleeve 53 is arranged at the position of the shock wave emitting hole 511 of the insulating sleeve 52, and the electrode ring 51, the insulating sleeve 52 and the metal sleeve 53 are filled in gaps through insulating glue 54 and are adhered and fixed outside the liquid-passing guide pipe 22, so that the structure and the outward emission of the shock wave generator are enhanced.
As shown in fig. 3, the shock wave generator 5 is disposed at the center of the balloon body 23.
As shown in fig. 4 and 5, the electrode ring 51 of each shock wave generator 5 is composed of two ring bodies 512 symmetrically arranged, a connecting part 513 is arranged between the two ring bodies 512, the connecting part 513 connects the two ring bodies 512, shock wave emitting holes 511 are respectively arranged on the two ring bodies 512, so that each shock wave generator 5 can release shock wave energy twice, and the positions of the two shock wave emitting holes 511 are the same.
In the present invention, at least one balloon 23 without a shock wave generator 5 is disposed between two adjacent balloons 23 with shock wave generators 5, the shock wave generators 5 are disposed in a pair by pair and are opposite, the two opposite shock wave generators 5 are connected in series, the wire 6 comprises a positive wire 61, a negative wire 62 and a connecting wire 63, the positive wire 61 is opposite to a ring 512 at the proximal end of one shock wave generator 5, the negative wire 62 is opposite to a ring 512 at the proximal end of the other shock wave generator 5, the connecting wire 63 is disposed between rings 512 at the distal end of the two shock wave generators 5, wherein the distal end of the positive wire 61 is a copper exposing area opposite to a shock wave emitting hole 511 at the ring 512 at the proximal end of one shock wave generator 5, the two ends of the connecting wire 63 are copper exposing areas opposite to the shock wave emitting hole 511 at the ring 512 at the distal end of the other shock wave generator 5, and the distal end of the negative wire 62 is a copper exposing area opposite to the shock wave emitting hole 511 at the ring 512 at the proximal end of the other shock wave generator 5.
The positive electrode lead 61 and the negative electrode lead 62 are respectively inserted into the balloon body 23 from the support rod through cavities 241 in the support rods 24 at the respective proximal ends, and the connecting lead 63 is attached to the outer wall of the dilation catheter 2 and disposed in the re-tip 1 and fixed by glue.
As shown in fig. 4 and 5, two through holes 221 are provided in each of the liquid passing pipes 22.
As shown in fig. 3, the balloon 23 is provided in a double number of 4 or more, such as 4, 6, 8, … …, etc.
In the present invention, the number of the shock wave generators 5 is a double number of 2 or more, such as 2, 4, 6, and the number of the shock wave generators 5 is smaller than the number of the balloon bodies 23.
As an embodiment of the present invention, as shown in fig. 3, 8 balloons 23 are provided, 4 shock wave generators 5 are provided, each of which is provided in a pair, and one balloon 23 without a shock wave generator 5 is provided between two adjacent shock wave generators 5 as seen in the figure.
As shown in fig. 2, balloon 23 includes a cylindrical shape 231 disposed in the middle and a tapered shape 232 disposed at the proximal and distal ends of cylindrical shape 231, respectively.
As shown in fig. 2, the dilating catheter 3 comprises an inner tube 33 and an outer tube 34, the aperture of the outer tube 34 is larger than the outer diameter of the inner tube 33, the outer tube 34 is sleeved outside the inner tube 33, the outer tube 34 and the inner tube 33 are coaxially arranged, a liquid passing cavity 32 of the outer tube 34 is arranged between the inner tube 33 and the outer tube 34, a guide wire cavity 31 is formed by the cavity of the inner tube 33, the distal end of the inner tube 33 extends out of the distal end of the outer tube 33 and passes through the blood passing channel 21 to be connected and fixed with the tip 1, the proximal end of the proximal support rod 24 is inserted into the liquid passing cavity 32 from the distal end of the outer tube 34 and fixed in the liquid passing cavity 32, the proximal end of the proximal support rod 24 is communicated with the liquid passing cavity 32, and the distal end port of the liquid passing cavity 32 is sealed.
The positive electrode lead 61 and the negative electrode lead 62 may be led out to the handle holder 4 through the liquid passage chamber 32 and electrically connected to the power connection 43, and of course, separate lead chambers may be provided in the liquid passage chamber 32.
In the present invention, the electrode ring 51 is made of a conductive metal material, preferably 304 stainless steel, the insulating sleeve 52 is made of an insulating material such as PI (polyimide) material, the metal sleeve 53 is made of a conductive metal material, preferably 304 stainless steel, and the insulating glue 54 is an insulating UV glue, for example a UV glue of the type of lota 349.
When the device is used, the device is placed at the tricuspid valve position, after liquid is introduced, the sacculus body is filled, after the tricuspid valve is expanded, the shock wave generator 5 is triggered, and the shock wave energy is released to the periphery, so that calcified parts are crushed, the physiological function of the tricuspid valve is recovered, the tricuspid valve can be repaired without placing an artificial valve, and the safety of an operation is improved.
The application of shock wave technology to the treatment of valvular lesions provides a new way of treating valvular lesions, and in addition, balloon angioplasty balloons which allow a degree of sustained cardiac output during balloon dilation are often not well tolerated by the patient during surgery.
Claims (10)
1. The utility model provides a valve shock wave sacculus inflation pipe, includes pointed end (1), sacculus (2), inflation pipe (3), handle seat (4) in proper order from distal end to proximal end, its characterized in that:
the center of the balloon (2) is provided with a blood flow passage (21), the blood flow passage (21) is arranged along the axial direction of the balloon (2) and penetrates through the balloon (2), the cross section of the balloon (2) is circular, a shock wave generator (5) is arranged in a balloon cavity of the balloon (2), and the distal end of the balloon (2) is a closed end; a liquid-passing guide pipe (22) with elasticity is arranged in the balloon cavity of the balloon (2), the distal end of the liquid-passing guide pipe (22) is a closed end and is fixedly connected with the distal end of the balloon (2), a plurality of through holes (221) are formed in the liquid-passing guide pipe (22), a shock wave generator (5) is arranged on the liquid-passing guide pipe (22), and the shock wave generator (5) is fixed in the balloon cavity of the balloon (2) through the liquid-passing guide pipe (22);
the distal end of the expansion catheter (3) passes through the blood flow passage (21) and then is fixedly connected with the proximal end of the tip (1) and the closed end of the balloon (2), the outer diameter of the expansion catheter (3) is smaller than the diameter of the blood flow passage (21), the proximal end of the balloon (2) and the proximal end of the liquid passing catheter (22) are fixedly arranged on the outer wall of the expansion catheter (3), the proximal end of the catheter (3) is fixedly connected with the distal end of the handle seat (4), a guide wire cavity (31) and a liquid passing cavity (32) are arranged in the expansion catheter (3), and the liquid passing cavity (32) is respectively communicated with the balloon cavity of the balloon (2) and/or the lumen of the liquid passing catheter (22);
the tip (1) is provided with a through cavity, and the guide wire cavity (31) is communicated with the through cavity of the tip (1).
2. The valve seismic balloon dilation catheter of claim 1, wherein: the balloon (2) is composed of at least four balloon bodies (23), a supporting rod (24) is arranged at the proximal end and the distal end of the balloon bodies (23) respectively, the distal ends of the balloon bodies (23) are sealing surfaces, the supporting rod (24) is fixedly connected with a tip (1) and an expanding catheter (3) respectively, shock wave generators (5) are arranged in the balloon cavities of the at least two balloon bodies (23), the far end of a liquid passing catheter (22) is fixed with the distal end of the balloon cavity of the balloon body (23), the proximal end of the liquid passing catheter (22) is fixed with the proximal end of the balloon cavity of the balloon body (23), a supporting rod through cavity (241) communicated with the balloon cavity of the balloon body (23) is arranged in the supporting rod (24) at the proximal end, the proximal end of the supporting rod through cavity (241) on the balloon body (23) without the shock wave generators (5) is communicated with the liquid passing cavity (32), and the liquid passing catheter (22) in the balloon body (23) with the shock wave generators (5) is communicated with the proximal end of the balloon cavity (22) through the balloon cavity (23).
3. The valve seismic balloon dilation catheter of claim 2, wherein: at least one balloon body (23) which is not provided with the shock wave generator (5) is arranged between two adjacent balloon bodies (23) which are provided with the shock wave generator (5).
4. The valve seismic balloon dilation catheter of claim 3, wherein: the shock wave generators (5) are oppositely arranged in pairs, and one group of two shock wave generators (5) are connected in series.
5. The valve seismic balloon dilation catheter of any one of claims 1-4 wherein: the shock wave generator (5) comprises an electrode ring (51), an insulating sleeve (52) and a metal sleeve (53), wherein the electrode ring (51) is sleeved outside the liquid-passing guide pipe (22), the insulating sleeve (52) is arranged between the electrode ring (51) and the liquid-passing guide pipe (22), an insulating layer is coated outside a wire (6), a copper exposure area is arranged on the wire (6), and the metal sleeve (53) is sleeved on the copper exposure area of the wire and is pressed and fixed; the electrode ring (51) is provided with at least one shock wave emitting hole (511), the shock wave emitting hole (511) faces the periphery of the balloon (2), the copper exposing area of the lead is opposite to the shock wave emitting hole (511), the position of the insulating sleeve (52) at the shock wave emitting hole (511) is provided with a naked hole (521) exposing a part of the metal sleeve (53), and the electrode ring (51), the insulating sleeve (52) and the metal sleeve (53) are filled with gaps through insulating glue (54) and are adhered and fixed outside the liquid-passing guide tube (22).
6. The valve seismic balloon dilation catheter of claim 5, wherein: the electrode ring (51) of each shock wave generator (5) consists of two ring bodies (512) which are symmetrically arranged, a connecting part (513) is arranged between the two ring bodies (512), the connecting part (513) is connected with the two ring bodies (512), and shock wave emitting holes (511) are respectively arranged on the two ring bodies (512).
7. The valve seismic balloon dilation catheter of claim 6, wherein: two through holes (221) are arranged on each liquid passing conduit (22).
8. The valve seismic balloon dilation catheter of claim 7, wherein: the balloon bodies (23) are arranged in a double number of more than 4.
9. The valve seismic balloon dilation catheter of claim 8, wherein: the balloon body (23) comprises a cylindrical shape (231) arranged in the middle and a conical shape (232) respectively arranged at the proximal end and the distal end of the cylindrical shape (231).
10. The valve seismic balloon dilation catheter of claim 9, wherein: the expansion catheter (3) comprises an inner tube (33) and an outer tube (34), the aperture of the outer tube (34) is larger than the outer diameter of the inner tube (33), the outer tube (34) is sleeved outside the inner tube (33), the outer tube (34) and the inner tube (33) are coaxially arranged, a liquid passing cavity (32) of the outer tube (34) is arranged between the inner tube (33) and the outer tube (34), a guide wire cavity (31) is formed by the cavity of the inner tube (33), the distal end of the inner tube (33) extends out of the distal end of the outer tube (33) and penetrates through a blood passing channel (21) to be connected and fixed with a tip (1), and the proximal end of a supporting rod (24) at the proximal end is inserted into the liquid passing cavity (32) from the distal end of the outer tube (34) and is fixed in the liquid passing cavity (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310557947.1A CN116637277A (en) | 2023-05-17 | 2023-05-17 | Valve shock wave saccule dilating catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310557947.1A CN116637277A (en) | 2023-05-17 | 2023-05-17 | Valve shock wave saccule dilating catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116637277A true CN116637277A (en) | 2023-08-25 |
Family
ID=87639165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310557947.1A Pending CN116637277A (en) | 2023-05-17 | 2023-05-17 | Valve shock wave saccule dilating catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116637277A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117462830A (en) * | 2023-12-27 | 2024-01-30 | 杭州德晋医疗科技有限公司 | Valve balloon dilation catheter and valve replacement system |
| CN117942131A (en) * | 2024-03-27 | 2024-04-30 | 苏州中荟医疗科技有限公司 | Impact waveguide tube and system |
-
2023
- 2023-05-17 CN CN202310557947.1A patent/CN116637277A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117462830A (en) * | 2023-12-27 | 2024-01-30 | 杭州德晋医疗科技有限公司 | Valve balloon dilation catheter and valve replacement system |
| CN117462830B (en) * | 2023-12-27 | 2024-03-15 | 杭州德晋医疗科技有限公司 | Valve balloon dilation catheter and valve replacement system |
| CN117942131A (en) * | 2024-03-27 | 2024-04-30 | 苏州中荟医疗科技有限公司 | Impact waveguide tube and system |
| CN117942131B (en) * | 2024-03-27 | 2024-05-31 | 苏州中荟医疗科技有限公司 | Impact waveguide tube and system |
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