CN108670374B - Interventional therapy device for cardiovascular diseases - Google Patents
Interventional therapy device for cardiovascular diseases Download PDFInfo
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- CN108670374B CN108670374B CN201810655482.2A CN201810655482A CN108670374B CN 108670374 B CN108670374 B CN 108670374B CN 201810655482 A CN201810655482 A CN 201810655482A CN 108670374 B CN108670374 B CN 108670374B
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- tube
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- needle tube
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- inner tube
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- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 13
- 208000024172 Cardiovascular disease Diseases 0.000 title abstract description 9
- 238000007789 sealing Methods 0.000 claims description 51
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 230000002526 effect on cardiovascular system Effects 0.000 claims description 16
- 230000007211 cardiovascular event Effects 0.000 claims 1
- 239000003814 drug Substances 0.000 description 31
- 239000008280 blood Substances 0.000 description 15
- 210000004369 blood Anatomy 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- 210000004204 blood vessel Anatomy 0.000 description 8
- 230000002829 reductive effect Effects 0.000 description 8
- 230000017531 blood circulation Effects 0.000 description 6
- 229940079593 drug Drugs 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 231100001011 cardiovascular lesion Toxicity 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 230000036961 partial effect Effects 0.000 description 4
- 230000003902 lesion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010067484 Adverse reaction Diseases 0.000 description 2
- 230000006838 adverse reaction Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Gastroenterology & Hepatology (AREA)
- Pathology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an interventional therapy device for cardiovascular diseases, which comprises an inner tube, wherein a through hole and a threading hole are formed in the inner tube, guide wires are arranged in the threading hole, conical sleeves are connected through connecting columns, drainage cavities are formed in the connecting columns, one end of the inner tube is movably connected with a first needle tube, a cavity is formed in the first needle tube, and an annular groove is formed in the cavity.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an interventional therapy device for cardiovascular diseases.
Background
Cardiovascular interventional therapy is a novel diagnosis and treatment technology for cardiovascular diseases, under the guidance of an imaging method, a catheter is sent to a cardiovascular lesion site by puncturing a body surface vessel and by means of a guide wire and other instruments, and a diagnosis and treatment method for diagnosing and treating the cardiovascular diseases is carried out.
Disclosure of Invention
The present invention is directed to a cardiovascular interventional device, which solves the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an interventional therapy device for cardiovascular, includes the inner tube, open the inside of inner tube has through-hole and through wires hole, the inside of through wires hole is equipped with the seal wire, cup joint two toper cover on the lateral wall of inner tube, connect through a plurality of spliced poles between two toper covers, the drainage chamber has all been opened to the inside of spliced pole, the both ends in a plurality of drainage chambeies run through corresponding toper cover respectively, the sealing washer has all been cup jointed on the outside of toper cover is located the inner tube, all open a plurality of logical grooves on the lateral wall of two sealing washer, the one end and the inner tube fixed connection of toper cover are kept away from to the sealing washer on the right side, the one end and the outer tube fixed connection of toper cover are kept away from to another sealing washer, the outer tube cup joints on the inner tube, the one end rotation of corresponding sealing washer is kept away from to the outer tube is connected with two cardboard, two cardboard and the draw-in groove activity joint of opening on the inner tube, the position on the lateral wall of through-hole and between two sealing washer is equipped with the logical liquid hole with the outside intercommunication;
the both ends of inner tube all run through the outer tube and extend to outside, the left end and the syringe swing joint of inner tube.
Preferably, the injector comprises a first needle tube and a second needle tube, the first needle tube is movably sleeved with the inner tube, a cavity is formed in the first needle tube, two annular grooves are formed in the inner side wall of the cavity, annular blocks are slidably connected in the two annular grooves and are arranged on the outer side wall of the second needle tube, the second needle tube is rotationally connected in the cavity, two injection cavities are formed in the second needle tube, pistons are slidably connected in the two injection cavities respectively, exchange holes are formed in the bottom of the injection cavities, the exchange holes are mutually communicated with the injection holes formed in the rubber plug, and the rubber plug is arranged between the second needle tube and the side wall of the cavity.
Preferably, a plurality of support bars are arranged in the sealing ring.
Preferably, one end of the sealing ring, which is close to the conical sleeve, is provided with a plurality of rotating blocks, the rotating blocks are rotationally connected in a rotating groove through a rotating shaft, and the rotating groove is formed in the side wall of the conical sleeve.
Preferably, the two conical sleeves and the corresponding sealing rings are both in sliding sleeve connection with the sealing sleeve on the outer side wall of the inner tube.
Preferably, two limit grooves are formed in the two annular grooves, and two limit protruding blocks are formed in the side walls of the two annular blocks.
Preferably, the outer tube is sleeved with an isolation sleeve in a sliding manner.
Preferably, the rightmost end of the interventional therapy device is provided with a smooth chamfer.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the two sealing rings are supported by extrusion through the inner tube, so that cardiovascular lesion parts at the connecting column are isolated from other cardiovascular parts, at the moment, blood at the cardiovascular lesion parts is static and does not flow, then medicine is injected into the lesion parts of cardiovascular parts through the through holes, the medicine is retained at the lesion parts of the cardiovascular parts, so that the medicine effect is greatly improved, the recovery speed of a patient is effectively improved, the blood at the isolated parts of the two sealing rings is firstly extracted through any injection cavity, and then the medicine is injected through the other injection cavity, so that the pressure impact during the injection of the medicine is avoided at the cardiovascular lesion parts, the cardiovascular parts of the patient are effectively protected from damage, and the medicine diffusion can be reduced due to the medicine injection in a relatively closed system, so that the medicine application amount is reduced, the medicine application effect is improved, the risk of adverse reaction caused after the medicine is excessively large, the outside cardiovascular parts of the two sealing rings are communicated through the through grooves and the drainage cavity, and the smooth circulation of the blood is effectively ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of the seal ring of the present invention after being opened;
FIG. 3 is a schematic view of a part of a clamping portion of a clamping plate and a clamping slot according to the present invention;
FIG. 4 is a cross-sectional view of the joint of the sealing ring and the conical sleeve of the outer tube connection of the present invention;
FIG. 5 is a cross-sectional view of the connection of the sealing ring and the conical sleeve of the inner pipe connection of the present invention;
FIG. 6 is a partial cross-sectional view of the connection post and inner tube of the present invention;
FIG. 7 is an exploded view of the present invention at a first needle cannula and a second needle cannula;
FIG. 8 is an exploded view of the junction of the injection chamber and the piston of the present invention;
FIG. 9 is a partial cross-sectional view of the connection of the rotor groove and the rotor block of the present invention;
FIG. 10 is a partial cross-sectional view of the connection of the support band to the seal ring of the present invention;
FIG. 11 is an enlarged view of FIG. 6 at A in accordance with the present invention;
FIG. 12 is a partial cross-sectional view of the seal ring of the present invention when it is raised;
fig. 13 is a cross-sectional view of a dual via version of the invention.
In the figure: 1. the device comprises an inner tube, 2, an outer tube, 3, a conical sleeve, 4, a sealing ring, 5, a connecting column, 6, a through hole, 601, a liquid through hole, 7, a drainage cavity, 8, a through groove, 9, a rotary groove, 10, a rotary block, 11, a sealing sleeve, 12, a supporting bar, 13, an isolation sleeve, 14, an exchange hole, 15, a rubber plug, 16, an injection hole, 17, a first needle tube, 18, a cavity, 19, an annular groove, 20, a second needle tube, 21, an annular block, 22, an injection cavity, 23, a piston, 24, a clamping plate, 25, a clamping groove, 26, a threading hole, 27 and a guide wire.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to figures 1-13 of the drawings,
the first embodiment of the invention provides an interventional therapy device for cardiovascular diseases, which comprises an inner tube 1, wherein a through hole 6 and a threading hole 26 are arranged in the inner tube 1, a liquid through hole 601 communicated with the outside is arranged on the side wall of the through hole 6 and positioned between two sealing rings 4, so that medicine can be conveniently injected, a guide wire 27 is arranged in the threading hole 26, the through hole 6 is a cavity for injecting medicine and drawing blood, the position of the liquid through hole 601 is positioned between two conical sleeves 3 at the tail end of the through hole 6, when the interventional therapy device is used, the guide wire 27 is pre-arranged in a blood vessel of a human body to reach the cardiovascular diseases to be treated, then the interventional therapy device gradually enters a designated position along the guide wire 27, two conical sleeves 3 are sleeved on the outer side wall of the inner tube 1, one end of the conical sleeve 3 close to the sealing ring 4 is inclined, so that the end of the sealing ring 4 is outwards expanded during extrusion, the two conical sleeves 3 are connected through a plurality of connecting columns 5, the inside of each connecting column 5 is provided with a drainage cavity 7, the drainage cavities 7 can be used for communicating the outer sides of the two sealing rings 4 in a cardiovascular manner, so that smooth blood circulation is ensured, blood accumulation and blockage in the using process of the device are prevented, the two ends of each drainage cavity 7 respectively penetrate through the corresponding conical sleeve 3, the drainage cavities 7 and the through grooves 8 form a blood circulation cavity, blood blockage is prevented, the outer sides of the conical sleeves 3 are positioned on the inner tube 1 and are sleeved with the sealing rings 4, the sealing rings 4 are made of medical PVC materials and can be deformed, the sealing rings 4 can prop up and shrink, and can seal the two ends of a cardiovascular target part when propped up, so that medicines can be detained at a lesion part of the cardiovascular system, the effect of the medicines is greatly improved, the injection quantity of the medicines can be effectively reduced, and the side effects are reduced, a plurality of through grooves 8 are formed in the side walls of the two sealing rings 4, the through grooves 8 and the drainage cavity 7 form a blood circulation cavity, blood is prevented from being blocked, one end of the sealing ring 4 on the right side, which is far away from the conical sleeve 3, is fixedly connected with the inner tube 1, one end of the other sealing ring 4, which is far away from the conical sleeve 3, is fixedly connected with the outer tube 2, the sealing ring 4 on the right side is extruded and supported by the conical sleeve 3, the connecting column 5 is pushed to the left side simultaneously, so that the sealing ring 4 on the left side is extruded and supported, a section of blood vessel is sealed, the outer tube 2 is sleeved on the inner tube 1, one end of the outer tube 2, which is far away from the sealing ring 4, is rotationally connected with two clamping plates 24, the two clamping plates 24 are movably clamped with clamping grooves 25 which are opened on the inner tube 1, the clamping grooves 25 are clamped with the clamping plates 24, so that the positions of the inner tube 1 and the outer tube 2 are fixed, as shown in the figure 3, the relative positions between the inner tube 1 and the outer tube 2 can be adjusted according to the conditions, the two ends of the inner tube 1 penetrate through the outer tube 2 and extend to the outside, the left end of the inner tube 1 is used for injecting a movable injection connector into the blood vessel.
In the second embodiment, in order to make the sealing ring 4 close a certain section of blood vessel better in effect, reduce the diffusion influence of blood flow on the medicine, increase parts such as the rotary block 10 on the basis of the first embodiment, one end of the sealing ring 4 close to the conical sleeve 3 is provided with a plurality of rotary blocks 10, the rotary block 10 is rotationally connected inside the rotary groove 9 through the rotary shaft, the rotary groove 9 is opened on the side wall of the conical sleeve 3, when the inner tube 1 is pulled to enable the inner tube 1 to slide in the outer tube 2, the sealing ring 4 slides on the conical sleeve 3, meanwhile, the rotary block 10 rotates in the corresponding rotary groove 9, after rotating a certain angle, the end part of the sealing ring 4 connected with the rotary block 10 stops sliding on the conical sleeve 3, the sealing ring 4 is curled inwards by the pull force of the rotary block 10, as shown in fig. 12, fig. 12 is a sectional view, since the sectional position is just between two connecting columns 5, a drainage cavity 7 and a through groove 8 are not seen in the figure, in addition, a plurality of support bars 12 are arranged in the inside of the sealing ring 4, when the support bars 12 are made of elastic metal, and are not vertically acted, and when the support bars 12 are not bent, the inner tube 12 are uniformly distributed in the cross section, and can only extend to the inner tube 12, and can extend outside the inner tube 1, when the support bars 12 is uniformly extend outside the inner tube 1, and extend outside, when the support bars 12 is made to extend outside in the inner tube 12, and have a certain cross section, and can extend outside, and can be evenly, when the outside, and extend outside;
in addition, in order to enable as little blood to flow through the middle when the device is used, the diffusion loss of medicines caused by flow is reduced, a sealing sleeve 11 is sleeved on the outer side wall of the inner tube 1 between the two conical sleeves 3 and the corresponding sealing rings 4 in a sliding manner, when the sealing rings 4 are spread, the through grooves 8 and the drainage cavity 7 are communicated with the outer side of the two sealing rings 4 in a cardiovascular manner, the effect and the position are as shown in fig. 12, the smooth blood circulation is ensured, the blood flowing into the gap between the inner tube 1 and the outer tube 2 is reduced as much as possible, the blood is prevented from flowing into the inner cavity sealed at the connecting column 5 through the gap between the conical sleeves 3 and the inner tube 1, an isolation sleeve 13 is sleeved on the outer tube 2 in a sliding manner, the isolation sleeve 13 can be contacted with the surface of a human body through sliding, sterile gauze is added between the isolation sleeve 13 and the surface of the human body, and infection of the outside to wounds is prevented.
In the third embodiment, since the device forms a relatively closed channel when in use, if the drug is directly and rapidly injected, the pressure on the vessel wall is possibly damaged, so that the blood in the closed channel is preferably extracted first, and then the drug is injected, but the operation of replacing the injector after the extraction to inject is complicated, and the pollution risk is increased due to the addition of steps, the injector in the first embodiment or the second embodiment can be adopted, the injector comprises a first needle tube 17 and a second needle tube 20, the first needle tube 17 is movably sleeved with the inner tube 1, the first needle tube 17 is made of transparent material, a cavity 18 is formed inside the first needle tube 17, two annular grooves 19 are formed on the inner side wall of the cavity 18, the inside of the two annular grooves 19 is slidably connected with an annular block 21, the annular block 21 is arranged on the outer side wall of the second needle tube 20, and is in sliding connection with the corresponding annular groove 19 through the annular block 21, so that the second needle tube 20 rotates in the cavity 18, the second needle tube 20 is rotationally connected in the cavity 18, the material of the second needle tube 20 is transparent and marked with scales, two injection cavities 22 are arranged in the second needle tube 20, the two injection cavities 22 are not communicated, one injection cavity 22 is used for injecting medicine, the other injection cavity 22 is used for extracting blood in a closed section of blood vessel, the inner diameter of the through hole 6 can be made very small, the liquid amount remained in a pipeline of the through hole 6 is basically negligible, a piston 23 is connected in the two injection cavities 22 in a sliding manner, the inner end of the piston 23 is made of rubber material and plays a role of sealing, the side wall of the injection cavity 22 is provided with an exchange hole 14, the two exchange holes 14 are respectively communicated with the two injection cavities 22, and the positions of the two exchanging holes 14 are symmetrical, under the condition that any exchanging hole 14 is communicated with the injection hole 16, the second needle tube 20 rotates 180 degrees in the cavity 18, the other exchanging hole 14 is communicated with the injection hole 16, the exchanging hole 14 is communicated with the injection hole 16 which is formed in the rubber plug 15, the rubber plug 15 is arranged between the second needle tube 20 and the side wall of the cavity 18, the rubber plug 15 is fixedly connected in the cavity 18 and can not rotate, the rubber plug 15 is tightly connected with the second needle tube 20, so that liquid is not leaked when the exchanging hole 14 is communicated with the injection hole 16, and the rubber plug 15 is in sliding connection with the second needle tube 20 when the second needle tube 20 rotates in the cavity 18.
Specifically, in order to make different injection cavities 22 communicate and control and sense well, two limit grooves are formed in two annular grooves 19, two limit bumps are formed in the side walls of two annular blocks 21, two grooves in each annular groove 19 are symmetrical, two bumps on the side walls of each annular block 21 are symmetrical, when the grooves are clamped with the bumps, any exchange hole 14 is communicated with the injection hole 16, the second needle tube 20 rotates 180 degrees, the grooves are clamped with the corresponding bumps again, and at the moment, the other exchange hole 14 is communicated with the injection hole 16.
In the fourth embodiment, the device may also adopt a double through hole 6, the section positions of which are shown in fig. 13, the two through holes 6 are located inside the inner tube 1, and the two sides of the threading hole 26 adopt the form of the double through holes 6, the left end of the inner tube 1 is respectively communicated with the two syringes, so that the tiny influence of the pipeline on the blood extraction can be reduced, and the design has higher requirements on the manufacture of the device.
Working principle: when the device is used, firstly, one end of a guide wire 27 penetrates into human body blood vessel to reach a preset position through puncture of the puncture device and the blood vessel puncture is performed, the other end penetrates through a threading hole 26 of the device and extends out, the device enters into a preset position of cardiovascular diseases of the human body along the guide wire 27, the rightmost end of the device is provided with a smooth chamfer as shown in figure 5, so that the resistance in the penetration process is reduced, the inner tube 1 is pulled outwards to enable the inner tube 1 to slide in the outer tube 2, the two sealing rings 4 are extruded and then expand, thus a single relatively closed cavity is formed at the cardiovascular appointed position, at the moment, the outside cardiovascular of the two sealing rings 4 is communicated through a through groove 8 and a drainage cavity 7, the smooth blood circulation is effectively ensured, then the two clamping plates 24 are clamped with clamping grooves 25 to fix the positions of the inner tube 1 and the outer tube 2, the isolation sleeve 13 is slid to be in contact with the surface of a human body, the interior of any injection cavity 22 is filled with the medicine, the first needle tube 17 is communicated with the inner tube 1, the second needle tube 20 is rotated 180 degrees, the injection cavity 22 which is not filled with the medicine is communicated with the injection hole 16 through the exchange hole 14, the piston 23 in the injection cavity is pulled, so that blood at a cardiovascular lesion site is pulled out along the through hole 6, then the second needle tube 20 is rotated 180 degrees, the injection cavity 22 filled with the medicine is communicated with the injection hole 16 through the exchange hole 14, the piston 23 in the injection cavity is pushed, so that the medicine is injected to a cardiovascular appointed position along the through hole 6, after the action time of the medicine and the blood vessel wall is obtained according to actual conditions, the piston 23 for injecting the medicine is pulled reversely, the medicine is pulled away, adverse effects caused by retention and diffusion are prevented, then the clamping plate 24 and the clamping groove 25 are released, the inner tube 1 is pushed reversely according to direct operation, after the sealing ring 4 is folded from the supporting state, the device can be slowly pulled out and separated along the guide wire 27. The device can reduce the influence of medicine diffusion caused by blood flowing, thereby reducing the medicine application amount, reducing the risk of adverse reaction of medicine and providing the medicine application effect at a designated position.
The position description words of left and right in the invention are only drawn to describe relationship in the drawings for convenience of expression and do not represent specific orientation in use.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. Interventional therapy device for cardiovascular events, comprising an inner tube (1), characterized in that: the inner pipe is characterized in that a through hole (6) and a threading hole (26) are formed in the inner pipe (1), the threading hole (26) is penetrated and provided with guide wires (27), two conical sleeves (3) are sleeved on the outer side wall of the inner pipe (1), the two conical sleeves (3) are connected through a plurality of connecting columns (5), drainage cavities (7) are formed in the connecting columns (5), two ends of the plurality of drainage cavities (7) penetrate through the corresponding conical sleeves (3) respectively, sealing rings (4) are sleeved on the inner pipe (1) at the outer sides of the conical sleeves (3), a plurality of through grooves (8) are formed in the side walls of the two sealing rings (4), one end, far away from the conical sleeves (3), of the other sealing ring (4) is fixedly connected with the outer pipe (2), one end, far away from the sealing rings (4), of the outer pipe (2) is connected with two clamping plates (24), of the two clamping plates (24) are sleeved on the inner pipe (1), the two clamping grooves (1) are communicated with the two side walls of the inner pipe (1), and the two clamping grooves (6) are positioned between the two through holes (601) and are formed in the side walls of the inner pipe (1);
both ends of the inner tube (1) penetrate through the outer tube (2) and extend to the outside, and the left end of the inner tube (1) is movably connected with the injector;
the inside of sealing washer (4) is equipped with a plurality of support bars (12), the one end that sealing washer (4) is close to toper cover (3) is equipped with a plurality of commentaries on classics piece (10), commentaries on classics piece (10) are rotated through the pivot and are connected in the inside of changeing groove (9), change groove (9) and open on the lateral wall of toper cover (3), all slide between two toper covers (3) and corresponding sealing washer (4) and cup joint and seal cover (11) on the lateral wall of inner tube (1), slide on outer tube (2) and cup jointed isolated cover (13).
2. A cardiovascular interventional therapy device according to claim 1, characterized in that: the injector comprises a first needle tube (17) and a second needle tube (20), wherein the first needle tube (17) is movably sleeved with an inner tube (1), a cavity (18) is formed in the first needle tube (17), two annular grooves (19) are formed in the inner side wall of the cavity (18), annular blocks (21) are slidably connected to the inner side wall of the two annular grooves (19), the annular blocks (21) are arranged on the outer side wall of the second needle tube (20), the second needle tube (20) is rotatably connected to the inner side wall of the cavity (18), two injection cavities (22) are formed in the second needle tube (20), pistons (23) are slidably connected to the inner side wall of the two injection cavities (22), exchange holes (14) are formed in the bottom of the injection cavities (22), the exchange holes (14) are communicated with the injection holes (16) formed in the inner side wall of the rubber plug (15), and the rubber plug (15) is arranged between the second needle tube (20) and the side wall of the cavity (18).
3. A cardiovascular interventional therapy device according to claim 2, characterized in that: two limit grooves are formed in the two annular grooves (19), and two limit protruding blocks are arranged on the side walls of the two annular blocks (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655482.2A CN108670374B (en) | 2018-06-23 | 2018-06-23 | Interventional therapy device for cardiovascular diseases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655482.2A CN108670374B (en) | 2018-06-23 | 2018-06-23 | Interventional therapy device for cardiovascular diseases |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108670374A CN108670374A (en) | 2018-10-19 |
| CN108670374B true CN108670374B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810655482.2A Active CN108670374B (en) | 2018-06-23 | 2018-06-23 | Interventional therapy device for cardiovascular diseases |
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| CN (1) | CN108670374B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111248943B (en) * | 2020-02-11 | 2022-09-02 | 荆州市中心医院(长江大学附属荆州医院) | Intervention device for detecting hydrops in abdominal cavity |
| CN114521938B (en) * | 2022-02-18 | 2022-08-30 | 深圳市凯思特医疗科技股份有限公司 | Cardiovascular intervention catheter with pressure sensing function |
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| WO2016109989A1 (en) * | 2015-01-05 | 2016-07-14 | 名高医疗器械（昆山）有限公司 | Syringe |
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