CN114521938B - Cardiovascular intervention catheter with pressure sensing function - Google Patents

Cardiovascular intervention catheter with pressure sensing function Download PDF

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Publication number
CN114521938B
CN114521938B CN202210148851.5A CN202210148851A CN114521938B CN 114521938 B CN114521938 B CN 114521938B CN 202210148851 A CN202210148851 A CN 202210148851A CN 114521938 B CN114521938 B CN 114521938B
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cavity
block
communicated
working
fixedly connected
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CN202210148851.5A
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CN114521938A (en
Inventor
桂红
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Shenzhen Kaisite Medical Technology Co ltd
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Shenzhen Kaisite Medical Technology Co ltd
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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320725—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M25/0075—Valve means
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • 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
    • A61B2017/22001—Angioplasty, e.g. PCTA
    • 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
    • A61B2017/22054—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 with two balloons
    • 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
    • A61B2017/22079—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 suction of debris
    • 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
    • A61B2017/22084—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 stone- or thrombus-dissolving
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
    • A61B2090/065—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring contact or contact pressure
    • 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
    • A61M2025/0001—Catheters; Hollow probes for pressure measurement
    • A61M2025/0003—Catheters; Hollow probes for pressure measurement having an additional lumen transmitting fluid pressure to the outside for measurement
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M25/0075—Valve means
    • A61M2025/0076—Unidirectional valves
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • A61M2025/015—Details of the distal fixation of the movable mechanical means
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/12—Blood circulatory system

Abstract

The invention provides a cardiovascular interventional catheter with pressure sensing, which comprises: the body, the body is connected with the direction subassembly, and all is equipped with the forced induction subassembly on body and the direction subassembly, one side that the direction subassembly was kept away from to the body is connected with the subassembly that stanchs, the inside of body is equipped with drainage chamber, and drainage chamber's inside is equipped with out the liquid subassembly, the side of body sets up a plurality of work holes, has solved the catheter intervention in the prior art central blood vessel intervention operation through setting up the direction subassembly and has mostly been by doctor manual operation, and the catheter is intervened the not good control of direction, more or less can be to the tissue friction or the destruction of interveneeing the pipe wall in the operation, is unfavorable for the technical problem who goes on of operation.

Description

Cardiovascular intervention catheter with pressure sensing function
Technical Field
The invention relates to the technical field of medical equipment, in particular to a cardiovascular interventional catheter with pressure sensing function.
Background
Cardiovascular interventional therapy is a novel cardiovascular disease diagnosis and treatment technology, does not need to open the chest, is guided by an imaging method, punctures a body surface blood vessel, sends a catheter to a lesion part by means of certain instruments, and carries out diagnosis and treatment on cardiovascular diseases by a specific catheter operation technology, and the cardiovascular interventional therapy is an advanced cardiovascular disease diagnosis and treatment method at present;
aiming at early cardiovascular acute thrombosis, the method can be used for taking thrombus, crushing thrombus and dissolving thrombus by a liquid medicine through an interventional therapy method at home and abroad to ensure that the blood vessel is recanalized, the blood supply of tissues is recovered, and the disability rate and the death rate are reduced. At present, the clinically adopted intravascular contact thrombolysis methods mainly include the following methods: 1. dissolving thrombus with medicinal liquid, 2. crushing thrombus with guide wire, 3. dissolving thrombus with medical injector sucking and dissolving thrombus duct;
in the prior art, the catheter intervention in the cardiovascular intervention operation is mostly manually operated by a doctor, the catheter intervention direction is not easy to control, and more or less tissues intervening in the tube wall can be rubbed or damaged in the operation, so that the operation is not facilitated.
Disclosure of Invention
The invention provides a cardiovascular intervention catheter with pressure sensing, which is used for solving the technical problems that in the prior art, the catheter intervention in a cardiovascular intervention operation is mostly manually operated by a doctor, the bending angle is not easy to control, and the tissue of an intervention tube wall is more or less rubbed or damaged in the operation, so that the operation is not facilitated.
In order to solve the above technical problem, the present invention discloses a cardiovascular interventional catheter with pressure sensing, comprising: the hemostatic tube comprises a tube body, wherein the tube body is connected with a guide assembly, pressure sensing assemblies are arranged on the tube body and the guide assembly, one side of the tube body, which is far away from the guide assembly, is connected with a hemostatic assembly, a liquid guide cavity is arranged inside the tube body, a liquid outlet assembly is arranged inside the liquid guide cavity, and a plurality of working holes are formed in the side end of the tube body.
Preferably, the plurality of working holes comprise a suction plug hole and a liquid outlet hole.
Preferably, go out the liquid subassembly and include a plurality of liquid branch pipes, a plurality of liquid branch pipes respectively with a plurality of work holes in go out the liquid hole intercommunication, and a plurality of liquid branch pipes keep away from the one end in work hole and be connected with out the liquid pump, go out the storage chamber intercommunication in liquid pump and the storage box, the storage chamber is used for saving the liquid medicine.
Preferably, the guiding assembly comprises a connecting mechanism and a guiding mechanism, the connecting mechanism comprises a first connecting block and a second connecting block, the first connecting block is connected with the second connecting block through a hose, the first connecting block is communicated with a first annular cavity left and right, the hose is communicated with a through cavity left and right, and the first annular cavity is communicated with the through cavity.
Preferably, guiding mechanism includes a plurality of fixed blocks one, a plurality of fixed block circumference equipartitions set up the side of connecting block one, fixed block one and electric telescopic handle's stiff end fixed connection, electric telescopic handle's flexible end rotates with the guide block to be connected, the guide block with connecting block two rotates to be connected.
Preferably, the pressure sensing assembly comprises two detection air bags, one detection air bag is arranged at the side end of the pipe body close to the second connecting block, the other detection air bag is arranged at the side end of the second connecting block, and a pressure sensor is arranged in the detection air bags.
Preferably, the hemostasis assembly comprises a hemostasis valve, the hemostasis valve is fixedly connected with the tube body, the hemostasis valve is connected with the control block through a control rope, and the side end of the hemostasis valve is communicated with a branch tube.
Preferably, the first connecting block and the pipe body are fixedly connected through a mounting assembly, and the mounting assembly comprises:
the shell is fixedly connected with the pipe body, the left and right of the shell are communicated with a second annular cavity, the middle of one end, away from the pipe body, of the shell is provided with a second installation cavity, and the second installation cavity is communicated with the sealing cavity;
the two second fixing blocks are symmetrically arranged at the upper end and the lower end of the sealing cavity, a clamping groove is formed in one side, close to the sealing cavity, of the second fixing block, the sealing cavity is connected with the sliding end of the third connecting block in a sliding mode, and the protruding end of the third connecting block is connected with the second fixing blocks in a sliding mode;
the two springs I are respectively arranged between the two fixing blocks II and the connecting block III at the upper end and the lower end;
the movable groove is arranged in the middle of the sliding end of the third connecting block, a first communicating hole is formed in the middle of the protruding end of the third connecting block, second communicating holes are symmetrically formed in the upper side and the lower side of the movable groove and are in sliding connection with a clamping block, the movable groove, the first communicating holes and the sealing cavity are communicated, and the clamping block is matched with the clamping groove;
the contact block is arranged in the second mounting cavity in a sliding mode, enters the sealed cavity and is connected with the second mounting cavity in a sealing mode, a second spring is fixedly arranged between the contact block and the clamping block, a first groove is formed in one side, close to the second mounting cavity, of the contact block, the contact block is communicated with a third communication hole in the vertical direction, and the third communication hole is communicated with the sealed cavity;
the sliding part of the sliding block is arranged in the first groove in a sliding mode, springs III are symmetrically arranged between the sliding part of the sliding block and the upper side and the lower side of the first groove, the sliding part of the sliding block is communicated with a communication hole IV on the left and right sides, a connecting part of the sliding block is communicated with a communication hole V on the upper side and the lower side, the communication hole IV, the communication hole V and the first groove are communicated, the communication hole V is communicated with the sealed cavity, and a groove II is arranged on one side of the communication hole V;
the stop block is arranged inside the communication hole III and the groove II, penetrates through the side end of the communication hole III, enters the groove I and is fixedly connected with the connecting part of the sliding block;
the two communicating pipes are symmetrically arranged on the upper side and the lower side of the shell, the communicating pipes are communicated with the sealed cavity, one side, away from the sealed cavity, of each communicating pipe is communicated with the storage cavity, the storage cavities are symmetrically arranged on the upper side and the lower side of the second mounting cavity, and elastic clamping pieces are arranged at the communication positions of the storage cavities and the second mounting cavity;
the sealing cavity is communicated with the outside through an air leakage pipe, and the opening of the air leakage pipe is connected with the blocking block.
Preferably, the middle part of the second connecting block is provided with a first mounting cavity, the first mounting cavity is communicated with the through cavity, the first mounting cavity and the through cavity are symmetrically provided with baffles at the upper end and the lower end of the communicated position, and the baffles are obliquely arranged.
Preferably, the first installation cavity is fixedly connected with a removing device, and the removing device comprises:
the working shell is fixedly arranged inside the first installation cavity, a first working cavity, a second working cavity, a third working cavity and a liquid storage cavity are sequentially arranged inside the working shell from left to right, and the liquid storage cavity is communicated with the first installation cavity through a working port;
the wire guide head penetrates through the side end of the working shell and enters the first working cavity to be fixedly connected with the first bevel gear, the first bevel gear is matched with the second bevel gear, the second bevel gear is connected with the first rotating shaft in a key mode, the first rotating shaft is connected with the partition plate in a rotating mode, the partition plate is fixedly arranged inside the first working cavity, the second bevel gear is connected with the connecting sleeve in a rotating mode, a cavity is formed inside the connecting sleeve, the side end of the cavity is connected with an arc-shaped opening in the partition plate in a sliding mode, and a spring V is fixedly arranged between the bottom end of the cavity and the partition plate;
the first belt wheel is fixedly connected with the first rotating shaft, the first belt wheel is connected with a second belt wheel through a first conveying belt, the second belt wheel is arranged inside the second working cavity, the second belt wheel is fixedly connected with the second rotating shaft, the second rotating shaft is fixedly connected with a third bevel gear, the third bevel gear is meshed with a fourth bevel gear, and the second rotating shaft is fixedly connected with a motor;
the third rotating shaft is fixedly connected with the fourth bevel gear and the first gear, one end of the third rotating shaft, far away from the fourth bevel gear, penetrates through the side end of the second working cavity and enters the third working cavity to be fixedly connected with the cam, the first gear is meshed with the second gear, the second gear is fixedly connected with the fourth rotating shaft, and the fourth rotating shaft penetrates through the side end of the second working cavity to enter the third working cavity to be fixedly connected with the fourth belt wheel;
the rotating shaft five is in sliding connection with sliding grooves formed in the three side ends of the working cavity, the rotating shaft five is fixedly connected with a belt wheel three and a bevel gear five, the rotating shaft five is in rotating connection with a matching block, the belt wheel three is connected with the belt wheel four through a conveying belt two, and the matching block is in sliding connection with a cam;
the supporting block is fixedly arranged at the side end of the working cavity III, the supporting block is rotationally connected with the connecting shaft, the connecting shaft is fixedly connected with the bevel gear VI and the reel, the reel is fixedly connected with the extrusion plate through a connecting rope, the extrusion plate is slidably arranged in the liquid storage cavity, and a spring IV is fixedly arranged between the extrusion plate and the liquid storage cavity;
the electromagnetic block is arranged in the cavity and corresponds to the magnetic block, and the magnetic block corresponds to one end, close to the electromagnetic block, of the partition plate.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of area A in FIG. 1;
FIG. 3 is a schematic view of a guide assembly according to the present invention;
FIG. 4 is a schematic view of the mounting assembly of the present invention;
fig. 5 is a schematic structural diagram of the erasing apparatus of the present invention.
In the figure: 1. a pipe body; 101. a drainage cavity; 102. a working hole; 2. a guide assembly; 201. a first connecting block; 202. a first annular cavity; 203. a hose; 204. the cavity is communicated; 205. a second connecting block; 206. a second annular cavity; 207. mounting a first cavity; 208. a baffle plate; 209. an electric telescopic rod; 210. a guide block; 206. a first fixed block; 3. a hemostatic valve; 4. a branch pipe; 5. a control block; 501. a control cord; 6. a connecting mechanism; 601. a housing; 602. a third spring; 603. a second annular cavity; 604. sealing the cavity; 605. a stopper; 606. a communicating hole; 607. a reservoir; 608. a second mounting cavity; 609. an elastic card; 610. connecting blocks III; 611. a first communication hole; 612. a second fixed block; 613. a card slot; 614. a first spring; 615. a movable groove; 616. a second communication hole; 617. a clamping block; 618. a second spring; 619. a slider; 620. a communicating hole IV; 621. a communicating hole V; 622. a contact block; 623. a third communicating hole; 624. a first groove; 625. a second groove; 7. a pressure sensor; 8. a working shell; 801. a first working cavity; 802. a second working cavity; 803. a liquid storage cavity; 804. a working port; 805. a thread guide head; 806. a first bevel gear; 807. a second bevel gear; 808. rotating a first shaft; 809. a first belt wheel; 810. a first conveyor belt; 811. connecting sleeves; 812. a cavity; 813. an electromagnetic block; 814. a fifth spring; 815. a partition plate; 816. an arc-shaped opening; 817. a motor; 818. a second rotating shaft; 819. a second belt wheel; 820. a third bevel gear; 821. a working cavity III; 822. a fourth bevel gear; 823. a third rotating shaft; 824. a cam; 825. a matching block; 826. rotating a shaft five; 827. a fifth bevel gear; 828. a sixth bevel gear; 829. a support block; 830. a connecting shaft; 831. a reel; 832. a third belt wheel; 833. a second conveyor belt; 834. rotating the shaft four; 835. a belt wheel IV; 836. a second gear; 837. a first gear; 838. and (5) pressing the plate.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1
An embodiment of the present invention provides a cardiovascular interventional catheter with pressure sensing, as shown in fig. 1 to 3, including: the hemostatic bag comprises a tube body 1, wherein the tube body 1 is connected with a guide assembly 2, pressure sensing assemblies are arranged on the tube body 1 and the guide assembly 2, a hemostatic assembly is connected to one side of the tube body 1, which is far away from the guide assembly 2, a liquid guide cavity 101 is arranged inside the tube body 1, a liquid outlet assembly is arranged inside the liquid guide cavity 101, and a plurality of working holes 102 are formed in the side end of the tube body 1;
the working holes 102 comprise a suction plug hole and a liquid outlet hole;
the liquid outlet assembly comprises a plurality of liquid outlet branch pipes, the liquid outlet branch pipes are communicated with liquid outlet holes in the working holes 102 respectively, one ends, far away from the working holes 102, of the liquid outlet branch pipes are connected with liquid outlet pumps, the liquid outlet pumps are communicated with storage cavities in the storage box, and the storage cavities are used for storing liquid medicine.
The guide assembly 2 comprises a connecting mechanism and a guide mechanism, the connecting mechanism comprises a first connecting block 201 and a second connecting block 205, the first connecting block 201 is connected with the pipe body 1, one end, far away from the pipe body 1, of the first connecting block 201 is connected with the second connecting block 205 through a hose 203, the first connecting block 201 is communicated with a first annular cavity 202 from the left and the right, the hose 203 is communicated with a through cavity 204 from the left and the right, and the first annular cavity 202 is communicated with the through cavity 204;
the guide mechanism comprises a plurality of first fixing blocks 206, the first fixing blocks 206 are circumferentially and uniformly distributed at the side end of the first connecting block 201, the first fixing blocks 206 are fixedly connected with the fixed end of an electric telescopic rod 209, the telescopic end of the electric telescopic rod 209 is rotatably connected with a guide block 210, and the guide block 210 is rotatably connected with the second connecting block 205;
the pressure sensing assembly comprises two detection air bags 7, one detection air bag 7 is arranged at the side end, close to the second connecting block 205, of the pipe body 1, the other detection air bag 7 is arranged at the side end of the second connecting block 205, and a pressure sensor is arranged inside the detection air bag 7.
The beneficial effects of the above technical scheme are:
by arranging the liquid outlet assembly for liquid medicine thrombolysis, part of the working holes 102 on the tube body 1 are used as liquid outlet holes to be connected with the liquid outlet branch tube, when the tube body 1 moves in a cardiovascular system, the air pressure in the detection air bag 7 changes so that the pressure sensor in the detection air bag changes, the detection air bag 7 arranged at the side end of the tube body 1 is used for detecting the compression state of the side end of the tube body 1, the detection air bag 7 arranged at the side end of the connecting block two 205 is used for detecting the compression state of the guide part on the tube body 1, when the cardiovascular system passes through a focus part, the detection values of the pressure sensors in the two detection air bags 7 are basically consistent, at the moment, the liquid outlet pump is started, the liquid medicine in the storage box is driven by the liquid outlet pump to enter the liquid outlet branch tube, the liquid medicine in the liquid outlet branch tube enters the cardiovascular system through the working holes 102 to dissolve thrombus in the cardiovascular system, so that the blood vessel is unobstructed, and by arranging the guide assembly 2, comprises a connecting mechanism and a guide mechanism, wherein the connecting mechanism comprises a first connecting block 201 and a second connecting block 205, the first connecting block 201 is fixedly connected with a pipe body 1, the first connecting block 201 is connected with the second connecting block 205 through a hose 203, so that the second connecting block 205 and the first connecting block 201 can freely rotate, thereby enabling the second connecting block 205 and the pipe body 1 to freely rotate, when the second connecting block 205 and the pipe body 1 rotate freely, by controlling the expansion length of the electric telescopic rod 209, thereby controlling the angle between the second connecting block 205 and the first connecting block 201, the second connecting block 205 is used as a guide part to guide the movement of the pipe body 1, solving the problems in the prior art, the catheter intervention in the cardiovascular intervention operation is mostly manually operated by a doctor, the intervention direction of the catheter is not easy to control, and more or less tissues of the interventional tube wall are rubbed or damaged in the operation, so that the technical problem of operation is not facilitated.
Example 2
On the basis of embodiment 1, as shown in fig. 1, the hemostasis assembly includes a hemostasis valve 3, the hemostasis valve 3 is fixedly connected with the tube body 1, the hemostasis valve 3 is connected with a control block 5 through a control rope 501, and a side end of the hemostasis valve 3 is communicated with a branch tube 4.
The beneficial effects of the above technical scheme are:
the working hole 102 on the tube body 1 which is not connected with the liquid outlet branch pipe is used as a suction plug hole which is communicated with the liquid guide cavity 101, the branch pipe 4 is connected with an injector and is used for pumping thrombus which is not completely dissolved in the cardiovascular liquid in the cardiovascular system out of the suction plug hole and the liquid guide cavity 101, the hemostatic valve 3 is used for preventing blood in the cardiovascular system from entering the liquid guide cavity 101 through the working hole 102 which is not connected with the liquid outlet branch pipe and flowing out of the exterior from the liquid guide cavity 101, and the control block 5 is pulled to open and close the hemostatic valve 3 by arranging the control rope 501 and the control block 5.
Example 3
On the basis of embodiment 1, as shown in fig. 4, the first connecting block 201 and the pipe body 1 are fixedly connected through a mounting assembly 6, and the mounting assembly 6 includes:
the outer shell 601 is fixedly connected with the pipe body 1, the left and right of the outer shell 601 are communicated with a second annular cavity 603, the middle of one end, far away from the pipe body 1, of the outer shell 601 is provided with a second mounting cavity 608, and the second mounting cavity 608 is communicated with the sealing cavity 604;
the two second fixing blocks 612 are symmetrically arranged at the upper end and the lower end of the sealed cavity 604, a clamping groove 613 is arranged on one side, close to the sealed cavity 604, of the second fixing block 612, the sealed cavity 604 is in sliding connection with the sliding end of the third connecting block 610, and the protruding end of the third connecting block 610 is in sliding connection with the second fixing blocks 612;
the two first springs 614 are respectively arranged between the two second fixing blocks 612 at the upper end and the lower end and the third connecting block 610;
the movable groove 615 is arranged in the middle of the sliding end of the third connecting block 610, a first communication hole 611 is formed in the middle of the protruding end of the third connecting block 610, second communication holes 616 are symmetrically formed in the upper side and the lower side of the movable groove 615, the second communication holes 616 are in sliding connection with a fixture block 617, the movable groove 615, the first communication holes 611 are communicated with the sealing cavity 604, and the fixture block 617 is matched with the clamping groove 613;
the contact block 622 is arranged in the second mounting cavity 608 in a sliding mode, the contact block 622 enters the sealing cavity 604 and is connected with the second mounting cavity 608 in a sealing mode, a second spring 618 is fixedly arranged between the contact block 622 and the clamping block 617, a first groove 624 is formed in one side, close to the second mounting cavity 608, of the contact block 622, a third communicating hole 623 is communicated with the upper portion and the lower portion of the contact block 622, and the third communicating hole 623 is communicated with the sealing cavity 604;
the sliding part of the sliding block 619 is arranged in the first groove 624 in a sliding mode, springs three 602 are symmetrically arranged between the sliding part of the sliding block 619 and the upper side and the lower side of the first groove 624, the sliding part of the sliding block 619 is communicated with a communication hole four 620 on the left and right, a connecting part of the sliding block 619 is communicated with a communication hole five 621 on the upper side and the lower side, the communication hole four 620, the communication hole five 621 and the first groove 624 are communicated, the communication hole five 621 is communicated with the sealed cavity 604, and a groove two 625 is arranged on one side of the communication hole five 621;
the stopper 605 is arranged inside the communication hole III 623 and the groove II 625, and the stopper 605 penetrates through the side end of the communication hole III 623 and enters the groove I624 to be fixedly connected with the connecting part of the sliding block 619;
the two communicating pipes 606 are symmetrically arranged on the upper side and the lower side of the shell 601, the communicating pipes 606 are communicated with the sealed cavity 604, one side, far away from the sealed cavity 604, of the communicating pipes 606 is communicated with the storage cavity 607, the storage cavity 607 is symmetrically arranged on the upper side and the lower side of the second mounting cavity 608, and elastic clamping pieces 609 are arranged at the communication position of the storage cavity 607 and the second mounting cavity 608;
the sealing cavity 604 is communicated with the outside through an air release pipe, and the opening of the air release pipe is connected with the block.
The beneficial effects of the above technical scheme are:
when the first connecting block 201 is connected with the connecting mechanism 6, the mating end of the first connecting block 201 is a protrusion, when the protrusion of the first connecting block 201 is in contact with the contact block 622, the contact block 622 is pushed to move towards the direction of the sealed cavity 604, the contact block 622 pushes the third connecting block 610 to move through the fixture 617, the first spring 614 is compressed, when the third connecting block 610 moves towards the direction of the sealed cavity 604, the air in the sealed cavity 604 enters the movable groove 615 through the first communication hole 611, the air entering the movable groove 615 presses the fixture 617 to move along the second communication hole 616, the second spring 618 is compressed, the air entering the movable groove 615 simultaneously enters the first groove 624 through the fourth communication hole 620 and the fifth communication hole 621, the slider 619 slides along the first groove 624, the third spring 602 stretches, the slider 619 drives the fixture 605 to be out of contact with the third communication hole 623, and the air entering the first groove 624 enters the left side of the sealed cavity 604 through the third communication hole 623, then the air enters the storage cavity 607 through the communicating pipe 606, so that the air pressure of the storage cavity 607 is increased, the elastic clamping piece 609 is further pushed to deform until the clamping block 617 moves to a part corresponding to the clamping groove 613, the air pushes the clamping block 617 to be matched with the clamping groove 613, the contact block 622 cannot continuously push the connecting block three 610 to move through the clamping block 617, the air pressure of the storage cavity 607 does not change any more, the elastic clamping piece 609 clamps and fixes the connecting block one 201 entering the mounting cavity two 608, the fixing of the connecting block one 201 and the shell 601 is realized, if the connecting block one 201 and the connecting mechanism 6 need to be dismounted, the blocking piece of the air release pipe is opened, the air in the sealing cavity 604 and the storage cavity 607 is released, the elastic clamping piece 609 is restored to the original position, the dismounting of the connecting block one 201 and the connecting mechanism 6 is realized, and the sliding block 619 is enabled to be dismounted under the elastic action of the spring one 614, the spring two 618 and the spring three 602, Stop 605, contact block 622, and connecting block three 610 return to their original positions.
Example 4
On the basis of the embodiment 1, as shown in fig. 5, a first mounting cavity 207 is arranged in the middle of a second connecting block 205, the first mounting cavity 207 is communicated with a through cavity 204, baffles 208 are symmetrically arranged at the upper end and the lower end of the communication position of the first mounting cavity 207 and the through cavity 204, and the baffles 208 are obliquely arranged;
the first installation cavity 207 is fixedly connected with a removing device, and the removing device comprises:
the working shell 8 is fixedly arranged inside the first installation cavity 207, a first working cavity 801, a second working cavity 802, a third working cavity 821 and a liquid storage cavity 803 are sequentially arranged inside the working shell 8 from left to right, and the liquid storage cavity 803 is communicated with the first installation cavity 207 through a working opening 804;
the wire guide head 805 penetrates through the side end of the working shell 8 and enters a first working cavity 801 to be fixedly connected with a first bevel gear 806, the first bevel gear 806 is matched with a second bevel gear 807, the second bevel gear 807 is in key connection with a first rotating shaft 808, the first rotating shaft 808 is in rotary connection with a partition 815, the partition 815 is fixedly arranged inside the first working cavity 801, the second bevel gear 807 is in rotary connection with a connecting sleeve 811, a cavity 812 is arranged inside the connecting sleeve 811, the side end of the cavity 812 is in sliding connection with an arc-shaped opening 816 in the partition 815, and a spring five 814 is fixedly arranged between the bottom end of the cavity 812 and the partition 815;
the first belt wheel 809, the first belt wheel 809 is fixedly connected with the first rotating shaft 808, the first belt wheel 809 is connected with the second belt wheel 819 through the first conveying belt 810, the second belt wheel 819 is arranged inside the second working chamber 802, the second belt wheel 819 is fixedly connected with the second rotating shaft 818, the second rotating shaft 818 is fixedly connected with the third bevel gear 820, the third bevel gear 820 is meshed with the fourth bevel gear 822, and the second rotating shaft 818 is fixedly connected with the motor 817;
a third rotating shaft 823, wherein the third rotating shaft 823 is fixedly connected with the fourth bevel gear 822 and a first gear 837, one end, far away from the fourth bevel gear 822, of the third rotating shaft 823 penetrates through the side end of the second working chamber 802 to enter the third working chamber 821 to be fixedly connected with the cam 824, the first gear 837 is meshed with a second gear 836, the second gear 836 is fixedly connected with a fourth rotating shaft 834, and the fourth rotating shaft 834 penetrates through the side end of the second working chamber 802 to enter the third working chamber 821 to be fixedly connected with a fourth pulley 835;
a fifth rotating shaft 826, wherein the fifth rotating shaft 826 is slidably connected with a sliding groove arranged at the side end of the third working chamber 821, the fifth rotating shaft 826 is fixedly connected with a third pulley 832 and a fifth bevel gear 827, the fifth rotating shaft 826 is rotatably connected with a matching block 825, the third pulley 832 and the fourth pulley 835 are connected through a second conveyor belt 833, and the matching block 825 is slidably connected with the cam 824;
the supporting block 829 is fixedly arranged at the side end of the working cavity III 821, the supporting block 829 is rotatably connected with the connecting shaft 830, the connecting shaft 830 is fixedly connected with a bevel gear VI 828 and a winding wheel 831, the winding wheel 831 is fixedly connected with the extrusion plate 838 through a connecting rope, the extrusion plate 838 is slidably arranged in the liquid storage cavity 803, and a spring IV 839 is fixedly arranged between the extrusion plate 838 and the liquid storage cavity 803;
the electromagnetic block 813 is arranged in the cavity 812, the electromagnetic block 813 is arranged corresponding to a magnetic block, and the magnetic block is arranged corresponding to one end, close to the electromagnetic block 813, of the partition 815;
a liquid replenishing pipe is arranged in the liquid guide cavity 101 and is used for communicating the annular cavity I202 with the storage cavity.
The beneficial effects of the above technical scheme are:
the working shell 8 is fixedly arranged in the first mounting cavity 207, the motor 817 is started to drive the second rotating shaft 818 to rotate, the second rotating shaft 818 drives the second belt wheel 819 and the third bevel gear 820 to rotate, the second belt wheel 819 drives the first belt wheel 809 to rotate through the first conveying belt 810, the first belt wheel 809 drives the first rotating shaft 808 to rotate, the first rotating shaft 808 drives the second bevel gear 807 to rotate, the electromagnetic block 813 is started, the electromagnetic block 813 is attracted to the magnetic block on the partition 815 to push the connecting sleeve 811 to move, the connecting sleeve 811 pushes the second bevel gear 807 to be meshed with the first bevel gear 806, the second bevel gear 807 drives the first bevel gear 806 to rotate, the first bevel gear 806 drives the wire guide 805 to rotate, and the wire guide 805 is used for crushing thrombus in the cardiovascular;
the bevel gear III 820 drives the bevel gear IV 822 to rotate, the bevel gear IV 822 drives the rotating shaft III 823 to rotate, the rotating shaft III 823 drives the gear I837 and the cam 824 to rotate, the gear I837 drives the gear II 836 to rotate, the gear II 836 drives the rotating shaft IV 834 to rotate, the rotating shaft IV 834 drives the belt pulley IV 835 to rotate, the cam 834 is in sliding connection with the matching block 825 so as to push the rotating shaft V826 to slide back and forth along the sliding chute, so that the bevel gear V827 is in intermittent contact with the bevel gear VI 828, when the bevel gear V827 is not in contact with the bevel gear VI 828, the belt pulley II 833 is in a loose state, the belt pulley V827 is in a tensioned state while the bevel gear V827 is in contact with the bevel gear VI 828, at the moment, the belt pulley IV 835 drives the belt pulley III 832 to rotate through the belt pulley II 833, the belt pulley III 832 drives the rotating shaft 826 to rotate, the rotating shaft V826 drives the bevel gear V827 to rotate, six 828 drive reels 831 of bevel gear rotate for connecting the rope on the reel 831 is not straining the expression board 838, impels the liquid medicine in the reservoir 803 under the elastic action of spring four 839 and gets into installation cavity 207 through work mouth 804, and baffle 208 that sets up in installation cavity 207 plays the water conservancy diversion effect to the liquid medicine, makes the liquid medicine pass through and leads to in chamber 204 and annular chamber 202 get into the fluid infusion pipe, replenishes the liquid medicine in the storage cavity.
Example 5
On the basis of the embodiment 1, the method further comprises the following steps:
the detection value of the pressure sensor is used for reflecting the pressure in the cardiovascular tube;
the first flow velocity sensor: the first flow velocity sensor is arranged at the outlet of the liquid outlet pump and used for detecting the flow velocity of the liquid medicine at the outlet of the liquid outlet pump;
a plurality of flow velocity sensors II: the flow velocity sensors II are arranged in the liquid outlet branch pipe and are used for detecting the flow velocity of the liquid in the liquid outlet branch pipe;
a frequency converter: the frequency converter is connected with the liquid outlet pump;
a controller: the controller is electrically connected with the pressure sensor, the flow velocity sensor I, the flow velocity sensors II and the frequency converter;
the controller controls the frequency converter to work based on the pressure sensor, the first flow velocity sensor and the second flow velocity sensors, and the method comprises the following steps:
step 1: the controller calculates theoretical actual working pressure required by the liquid outlet pump when liquid is supplied according to the pressure in the cardiovascular tube detected by the pressure sensor, the flow rate of the liquid in the liquid outlet branch tube detected by the flow rate sensor II and a formula (1);
Figure BDA0003509798980000131
wherein F is the theoretical actual working pressure required by the liquid outlet pump when liquid is supplied, b is the number of the working holes 102, R is the radius of the working holes 102, b is the number of the second flow velocity sensors, and V a The detection value of the second flow velocity sensor is a rho, the density of the liquid medicine in the storage cavity is rho, and the K is the on-way resistance coefficient of the liquid outlet branch; d is the inner diameter of the liquid outlet branch pipe, m is the number of the liquid outlet branch pipes, L n Is the length of the nth liquid outlet branch pipe, P 1 、P 2 The detection values of the pressure sensors in the two detection air bags 7 are detected;
step 2: the controller calculates the actual working frequency of the liquid outlet pump for supplying liquid according to the theoretical actual working pressure of the liquid outlet pump calculated in the step (1) and the formula (2) at the outlet of the liquid outlet pump detected by the flow rate sensor I, and controls the frequency converter to work according to the calculated actual working frequency of the liquid outlet pump for supplying liquid, so that the aim of controlling the liquid outlet pump to work is fulfilled;
Figure BDA0003509798980000132
b is the actual working frequency of the liquid discharging pump during liquid supply, W is the rated power of the liquid discharging pump, N is the rated rotating speed of the liquid discharging pump, T is the detection value of the first flow rate sensor, and Y is the number of magnetic poles of a motor magnetic field connected with the liquid discharging pump;
wherein, in the formula (1)
Figure BDA0003509798980000133
Is resistance to the flow of the liquid medicine in the liquid outlet branch pipe, wherein
Figure BDA0003509798980000134
The value is 0.01cm 2 /s 2 ，
Figure BDA0003509798980000135
The value is 1cm, d is 2mm, rho is 1.2g/cm 3 And K is 0.32 of the total weight of the alloy,
Figure BDA0003509798980000136
3 x 10 is obtained by calculation -8 N，2(P 1 +P 2 )*n*πR 2 Middle P 1 And P 2 Respectively taking 13.3KPa, R0.05 mm, n 8, 2 (P) 1 +P 2 )*n*πR 2 The calculation results in 1.7 × 10 -3 N，
Figure BDA0003509798980000137
The calculation results in 1.700003 × 10 -3 N；
In the formula (2), W is 25W, T is 0.8cm/s, Y is 1, N is 30r/s,
Figure BDA0003509798980000138
and calculating to obtain 96.6HZ, and controlling the frequency converter to work through the calculated 96.6HZ so as to control the work of the liquid outlet pump, so that the rotating speed of a motor connected with the liquid outlet pump is adjusted under the condition that the pressure of the cardiovascular system is changed during diastole and contraction, and the stable operation of the liquid outlet pump is ensured.
The beneficial effects of the above technical scheme are:
the first flow velocity sensor is arranged at the outlet of the liquid outlet pump and used for detecting the flow velocity of the liquid medicine at the outlet of the liquid outlet pump; a plurality of flow velocity sensors II are arranged in the liquid outlet branch pipe and are used for detecting the flow velocity of the liquid in the liquid outlet branch pipe; the controller calculates theoretical actual working pressure required by the liquid outlet pump when liquid is supplied according to pressure in the cardiovascular tube detected by the pressure sensor, flow rate of liquid in the liquid outlet branch tube detected by the flow rate sensor II and a formula (1), calculates actual working frequency when the liquid is supplied by the liquid outlet pump according to liquid flow rate at the outlet of the liquid outlet pump detected by the flow rate sensor I, theoretical actual working pressure required by the liquid outlet pump when liquid is supplied by the liquid outlet pump calculated in the step 1 and a formula (2), and controls the frequency converter to work according to the calculated actual working frequency when the liquid is supplied by the liquid outlet pump, so that the aim of controlling the liquid outlet pump to work is fulfilled, and the liquid outlet pump can run stably.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. A cardiovascular interventional catheter with pressure sensing, comprising: the hemostatic catheter comprises a catheter body (1), wherein the catheter body (1) is connected with a guide assembly (2), pressure sensing assemblies are arranged on the catheter body (1) and the guide assembly (2), one side, far away from the guide assembly (2), of the catheter body (1) is connected with a hemostatic assembly, a liquid guide cavity (101) is formed inside the catheter body (1), a liquid outlet assembly is arranged inside the liquid guide cavity (101), and a plurality of working holes (102) are formed in the side end of the catheter body (1);
the working holes (102) comprise a suction plug hole and a liquid outlet hole;
the liquid outlet assembly comprises a plurality of liquid outlet branch pipes, the liquid outlet branch pipes are respectively communicated with liquid outlet holes in the working holes (102), one ends, far away from the working holes (102), of the liquid outlet branch pipes are connected with liquid outlet pumps, the liquid outlet pumps are communicated with storage cavities in the storage box, and the storage cavities are used for storing liquid medicine;
the guide assembly (2) comprises a connecting mechanism and a guide mechanism, the connecting mechanism comprises a first connecting block (201) and a second connecting block (205), the first connecting block (201) is connected with the second connecting block (205) through a hose (203), the left side and the right side of the first connecting block (201) are communicated with a first annular cavity (202), the left side and the right side of the hose (203) are communicated with a through cavity (204), and the first annular cavity (202) is communicated with the through cavity (204);
the guide mechanism comprises a plurality of first fixing blocks (206), the first fixing blocks (206) are circumferentially and uniformly distributed at the side end of the first connecting block (201), the first fixing blocks (206) are fixedly connected with the fixed end of the electric telescopic rod (209), the telescopic end of the electric telescopic rod (209) is rotatably connected with a guide block (210), and the guide block (210) is rotatably connected with the second connecting block (205);
connecting block (201) and body (1) between through installation component (6) fixed connection, installation component (6) include:
the outer shell (601) is fixedly connected with the pipe body (1), a second annular cavity (603) is communicated with the left and the right of the outer shell (601), a second installation cavity (608) is arranged in the middle of one end, away from the pipe body (1), of the outer shell (601), and the second installation cavity (608) is communicated with the sealed cavity (604);
the two second fixing blocks (612) are symmetrically arranged at the upper end and the lower end of the sealing cavity (604), a clamping groove (613) is formed in one side, close to the sealing cavity (604), of the second fixing block (612), the sealing cavity (604) is in sliding connection with the sliding end of the third connecting block (610), and the protruding end of the third connecting block (610) is in sliding connection with the second fixing block (612);
the two first springs (614) are respectively arranged between the two second fixing blocks (612) at the upper end and the lower end and the connecting block (610);
the movable groove (615) is arranged in the middle of the sliding end of the third connecting block (610), a first communicating hole (611) is formed in the middle of the protruding end of the third connecting block (610), second communicating holes (616) are symmetrically formed in the upper side and the lower side of the movable groove (615), the second communicating holes (616) are in sliding connection with a clamping block (617), the movable groove (615), the first communicating holes (611) and the sealing cavity (604) are communicated, and the clamping block (617) is matched with the clamping groove (613);
the contact block (622) is arranged in the second mounting cavity (608) in a sliding mode, the contact block (622) enters the sealing cavity (604) and is connected with the second mounting cavity (608) in a sealing mode, a second spring (618) is fixedly arranged between the contact block (622) and the clamping block (617), a first groove (624) is formed in one side, close to the second mounting cavity (608), of the contact block (622), a third communicating hole (623) is communicated with the upper portion and the lower portion of the contact block (622), and the third communicating hole (623) is communicated with the sealing cavity (604);
the sliding part of the sliding block (619) is arranged in the first groove (624) in a sliding mode, springs three (602) are symmetrically arranged between the sliding part of the sliding block (619) and the upper side and the lower side of the first groove (624), the sliding part of the sliding block (619) is communicated with a communication hole four (620) in the left and right direction, a connection part of the sliding block (619) is communicated with a communication hole five (621) in the upper and lower direction, the communication hole four (620), the communication hole five (621) and the first groove (624) are communicated, the communication hole five (621) is communicated with the sealing cavity (604), and a groove two (625) is arranged on one side of the communication hole five (621);
the stopper (605) is arranged inside the communication hole III (623) and the groove II (625), and the stopper (605) penetrates through the side end of the communication hole III (623) to enter the groove I (624) to be fixedly connected with the connecting part of the sliding block (619);
the two communicating pipes (606) are symmetrically arranged on the upper side and the lower side of the shell (601), the communicating pipes (606) are communicated with the sealed cavity (604), one side, far away from the sealed cavity (604), of each communicating pipe (606) is communicated with the storage cavity (607), the storage cavities (607) are symmetrically arranged on the upper side and the lower side of the second mounting cavity (608), and elastic clamping pieces (609) are arranged at the communication positions of the storage cavities (607) and the second mounting cavity (608);
the sealing cavity (604) is communicated with the outside through an air release pipe, and the opening of the air release pipe is connected with the blocking block.
2. A cardiovascular interventional catheter with pressure sensing function according to claim 1, characterized in that the pressure sensing assembly comprises two detection balloons (7), wherein one detection balloon (7) is disposed at the side end of the catheter body (1) near the second connecting block (205), the other detection balloon (7) is disposed at the side end of the second connecting block (205), and a pressure sensor is disposed inside the detection balloons (7).
3. The cardiovascular interventional catheter with pressure sensing function according to claim 1, wherein the hemostatic assembly comprises a hemostatic valve (3), the hemostatic valve (3) is fixedly connected with the catheter body (1), the hemostatic valve (3) is connected with the control block (5) through a control rope (501), and a branch pipe (4) is communicated with a side end of the hemostatic valve (3).
4. The cardiovascular interventional catheter with pressure sensing function according to claim 1, wherein a first installation cavity (207) is formed in the middle of the second connecting block (205), the first installation cavity (207) is communicated with the through cavity (204), baffles (208) are symmetrically formed at the upper end and the lower end of the communication position of the first installation cavity (207) and the through cavity (204), and the baffles (208) are obliquely arranged.
5. The cardiovascular interventional catheter with pressure sensing as set forth in claim 4, wherein the installation lumen one (207) is fixedly connected with a removal device, the removal device comprising:
the working shell (8) is fixedly arranged inside the first mounting cavity (207), a first working cavity (801), a second working cavity (802), a third working cavity (821) and a liquid storage cavity (803) are sequentially arranged inside the working shell (8) from left to right, and the liquid storage cavity (803) is communicated with the first mounting cavity (207) through a working port (804);
the wire guide head (805) penetrates through the side end of the working shell (8) and enters a working cavity I (801) to be fixedly connected with a bevel gear I (806), the bevel gear I (806) is matched with a bevel gear II (807), the bevel gear II (807) is in key connection with a rotating shaft I (808), the rotating shaft I (808) is in rotating connection with a partition plate (815), the partition plate (815) is fixedly arranged inside the working cavity I (801), the bevel gear II (807) is in rotating connection with a connecting sleeve (811), a cavity (812) is arranged inside the connecting sleeve (811), the side end of the cavity (812) is in sliding connection with an arc-shaped opening (816) in the partition plate (815), and a spring five (814) is fixedly arranged between the bottom end of the cavity (812) and the partition plate (815);
the first belt wheel (809), the first belt wheel (809) is fixedly connected with the first rotating shaft (808), the first belt wheel (809) is connected with the second belt wheel (819) through the first conveying belt (810), the second belt wheel (819) is arranged inside the second working chamber (802), the second belt wheel (819) is fixedly connected with the second rotating shaft (818), the second rotating shaft (818) is fixedly connected with the third bevel gear (820), the third bevel gear (820) is meshed with the fourth bevel gear (822), and the second rotating shaft (818) is fixedly connected with the motor (817);
the rotating shaft III (823) is fixedly connected with the bevel gear IV (822) and the gear I (837), one end, far away from the bevel gear IV (822), of the rotating shaft III (823) penetrates through the side end of the working cavity II (802) to enter the working cavity III (821) to be fixedly connected with the cam (824), the gear I (837) is meshed with the gear II (836), the gear II (836) is fixedly connected with the rotating shaft IV (834), and the rotating shaft IV (834) penetrates through the side end of the working cavity II (802) to enter the working cavity III (821) to be fixedly connected with the belt wheel IV (835);
the rotating shaft five (826) is in sliding connection with a sliding groove arranged at the side end of the working cavity three (821), the rotating shaft five (826) is fixedly connected with a belt wheel three (832) and a bevel gear five (827), the rotating shaft five (826) is in rotating connection with a matching block (825), the belt wheel three (832) is connected with a belt wheel four (835) through a conveyor belt two (833), and the matching block (825) is in sliding connection with a cam (824);
the supporting block (829) is fixedly arranged at the side end of the working cavity III (821), the supporting block (829) is rotatably connected with the connecting shaft (830), the connecting shaft (830) is fixedly connected with a bevel gear six (828) and a winding wheel (831), the winding wheel (831) is fixedly connected with the extrusion plate (838) through a connecting rope, the extrusion plate (838) is slidably arranged in the liquid storage cavity (803), and a spring IV (839) is fixedly arranged between the extrusion plate (838) and the liquid storage cavity (803);
the electromagnetic block (813) is arranged in the cavity (812), the electromagnetic block (813) is arranged corresponding to the magnetic block, and the magnetic block is arranged corresponding to one end, close to the electromagnetic block (813), of the partition board (815).
CN202210148851.5A 2022-02-18 2022-02-18 Cardiovascular intervention catheter with pressure sensing function Active CN114521938B (en)

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CN113633383A (en) * 2021-07-28 2021-11-12 上海卓昕医疗科技有限公司 Guide wire/catheter delivery device for vascular intervention, use method thereof and vascular intervention surgical robot

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