CN114145815A - Cardiovascular intervention device and operation method thereof - Google Patents
Cardiovascular intervention device and operation method thereof Download PDFInfo
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- CN114145815A CN114145815A CN202111316113.9A CN202111316113A CN114145815A CN 114145815 A CN114145815 A CN 114145815A CN 202111316113 A CN202111316113 A CN 202111316113A CN 114145815 A CN114145815 A CN 114145815A
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
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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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
- A61B2017/3409—Needle locating or guiding means using mechanical guide means including needle or instrument drives
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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
- A61B17/34—Trocars; Puncturing needles
- A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
- A61B2017/3492—Means for supporting the trocar against the body or retaining the trocar inside the body against the outside of the body
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Abstract
The invention relates to the technical field of cardiovascular intervention, in particular to a cardiovascular intervention device and an operation method thereof. The fixing device is arranged, so that the puncture needle can be conveniently fixed, the puncture of the puncture needle is more stable by adjusting the angle and the length, and the two hands can be liberated after the puncture, so that the operation is convenient.
Description
Technical Field
The invention relates to the technical field of cardiovascular intervention, in particular to a cardiovascular intervention device and an operation method thereof.
Background
When clinical cardiovascular interventional therapy is carried out on a patient, a puncture needle is generally used for directly puncturing a blood vessel or a common injector is used for puncturing the blood vessel, then the injector is detached from the puncture needle, and a guide wire is sent into the blood vessel through the puncture needle head.
Chinese patent application No. CN201910111662.9 discloses a cardiovascular intervention device, which is characterized in that when in use, a needle is inserted into a blood vessel of a patient, part of blood flows into the lower end of an outer tube, then a threaded rod starts to rotate under the meshing fit of an annular rack and a gear by rotating an annular tube, an inner threaded sleeve moves downwards under the threaded fit and drives an inner tube to move synchronously.
When the puncture device is used for interventional therapy, the puncture needle is not fixed, or the angle of the puncture fixing device is not adjustable, blood vessels are easily accidentally injured if the puncture angle is incorrect in the puncture process, and after the puncture is completed, if the puncture needle cannot be fixed, the puncture needle needs to be held by a medical worker, the working difficulty of the medical worker is increased, and unnecessary injury is brought to a patient.
Disclosure of Invention
The invention aims to provide a cardiovascular intervention device and an operation method thereof, and solves the problems that in the prior art, the angle of a puncture fixing device is not adjustable, a blood vessel is easy to puncture if the puncture angle is incorrect in the puncture process, and after the puncture is finished, if a puncture needle cannot be fixed and needs to be held by a medical worker, the working difficulty of the medical worker is increased, and unnecessary injury is brought to a patient.
In order to achieve the purpose, the invention adopts the following technical scheme: a cardiovascular intervention device comprises a fixed plate, wherein a fixing device is arranged on the surface of the fixed plate, the fixing device comprises a connecting block, a round rod is arranged on the side wall of the connecting block, a rotating shaft is sleeved inside the round rod and is rotationally connected with the connecting block, a limiting ring is slidably connected to one side, close to the connecting block, of the round rod, a second wedge-shaped block is arranged on one side, close to the connecting block, of the limiting ring, one side, far away from the connecting block, of the limiting ring is connected with a fixing ring through a first spring, the fixing ring is fixedly connected with the round rod, a connector is arranged at one end, far away from the connecting block, of the round rod, a moving rod is arranged inside the connector, an elongated slot is formed in one side of the surface of the moving rod, a second limiting slot is formed in the moving rod, a third screw rod is arranged at one end of the moving rod, one end of the third screw rod is rotationally connected with a limiting block, and a second rotating handle is arranged at the other end of the third screw rod, the limiting block is connected with the long groove in a sliding mode, the other end of the moving rod is provided with a clamping assembly, the clamping assembly comprises a limiting ring, and a pressure sensor is arranged in the limiting ring;
a third limiting groove is formed in one end, close to the round block, of the connector, a hemostasis part is connected in the third limiting groove in a sliding mode, the hemostasis part is fixedly connected with the inserting block through a connecting rod, an inserting groove is formed in the inserting block, an inserting rod is inserted in the inserting groove, a limiting spring is arranged on one side, close to the second electromagnet, of the inserting rod, and the bottom of the inserting block is elastically connected with the third limiting groove through a compression spring;
the rotating shaft is provided with two limiting baffles at one end close to the moving rod, the two limiting baffles are respectively arranged at two sides of the moving rod and are in sliding connection with the moving rod, one side of each limiting baffle close to the moving rod is connected with a first electromagnet through an elastic telescopic rod, the first electromagnet is positioned in a second limiting groove, one side of each second limiting groove close to the clamping assembly is provided with a second electromagnet, and the fixing ring is provided with a switch;
when the pressure sensor detects that the pressure of the needle tube on the limiting ring exceeds a preset value, the control unit controls the first electromagnet to be powered off and the second electromagnet to be powered on, magnetic connection is formed between the second electromagnet and the moving rod, meanwhile, the second electromagnet drives the moving rod to move towards the first electromagnet through the magnetic attraction of the second electromagnet on the limiting baffle, and the puncture needle is quickly separated from a patient;
when the second electromagnet is electrified, the second electromagnet moves into the connector, the second electromagnet generates magnetic attraction to the insertion rod to enable the insertion rod to extrude the limiting spring and move towards the direction of the second electromagnet, the limitation of the insertion block is removed, and the compression spring pushes the insertion block to move outwards to enable the hemostasis part to stretch out of the connector to perform compression hemostasis and disinfection on the puncture part.
A method of operating a cardiovascular intervention device, the method of operation comprising the steps of:
s1, placing the fixed plate at the bottom of the workbench, and rotating a third rotating handle, wherein the third rotating handle drives a fourth screw rod to rotate and enables a pressure plate to move downwards, so that the pressure plate and the fixed plate extrude and fix the bed plate;
s2, fixing the puncture needle on the through hole on the surface of the connecting frame through the moving block;
s3, rotating the rotating sleeve to drive the connecting block to move, and changing the height of the round rod through the movement of the connecting block;
s4, the limiting ring is pulled to move towards the direction of the fixing ring, the second wedge block releases the limitation on the first wedge block, the rotating shaft rotates on the side wall of the connecting block, the puncture needle is aligned to the position needing to be punctured, and the angle of the connector is adjusted;
s5, rotating the third screw rod through the second rotating handle to enable the third screw rod to drive the limiting block to move, so that the moving distance of the moving rod on the connector is limited, and the puncture depth of the puncture needle is adjusted;
s6, when the patient moves greatly, the control unit controls the first electromagnet to be powered off and the second electromagnet to be powered on, so that the moving rod can move towards the first electromagnet rapidly under the action of the magnetic attraction force of the second electromagnet, and the puncture needle is prevented from accidentally injuring the puncture part of the patient;
s7, when the second electromagnet is electrified, the second electromagnet moves to the connector, the second electromagnet enables the insertion rod to move towards the direction of the second electromagnet through magnetic attraction to remove the limitation of the insertion block, and the compression spring pushes the insertion block to move outwards to enable the hemostasis part to stretch out of the connector to perform compression hemostasis and disinfection on the puncture part.
The invention has at least the following beneficial effects:
1. according to the invention, the limit ring is pulled to move towards the direction of the fixed ring and extrude the switch, the limit of the rotating shaft is released, simultaneously, as the switch is extruded, the first electromagnet is electrified, the first electromagnet and the movable rod are in magnetic connection, so that the movable rod and the rotating shaft are in fixed connection, and the angle of the device is adjusted by rotating the movable rod.
2. According to the invention, the limiting ring is pulled to move towards the direction of the fixing ring, so that the second wedge block relieves the limitation on the first wedge block, and the rotating shaft rotates on the side wall of the connecting block, so that the connector and the moving rod on the connector rotate, the purpose of changing the angle of the puncture needle is achieved, the puncture of the puncture needle is more stable by adjusting the angle and the length, and both hands can be liberated after puncture, so that the problem that the puncture needle deflects to puncture the blood vessel when an operator uses the puncture needle is effectively solved.
3. According to the invention, through the mutual matching of the limiting ring, the first electromagnet and the second electromagnet, when a patient acts greatly, the puncture needle is in contact with the limiting ring and extrudes the limiting ring, the pressure value is fed back to the control unit through the pressure sensor, the control unit controls the second electromagnet to be electrified, the first electromagnet is powered off, the second electromagnet is powered on, and after the first electromagnet is powered off and the second electromagnet is powered on, the magnetic attraction of the second electromagnet on the limiting baffle plate enables the magnetic attraction of the second electromagnet on the first electromagnet to enable the movable rod to move towards the first electromagnet, so that the puncture needle is separated from the patient, and the problem that the puncture needle still keeps unchanged to cut open the blood vessel of the patient after the patient acts greatly is avoided.
4. According to the invention, through the mutual matching of the limiting ring, the first electromagnet and the second electromagnet, when the displacement of the movable rod is increased by adjusting the limiting block, the distance between the limiting block and the round block is increased, the limiting block and the round block cannot limit the movement of the movable rod, at the moment, the first electromagnet is controlled to be opened through the control unit, magnetic attraction force is generated between the first electromagnet and the movable rod, the movable rod is limited through the mutual matching of the limiting block and the first electromagnet, and the problem that the blood vessel of a patient is scratched due to the movement of a puncture needle when the puncture needle is punctured into the body of the patient is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an auxiliary device according to the present invention;
FIG. 3 is a schematic view of a third screw according to the present invention;
FIG. 4 is a schematic view of a clamping assembly according to the present invention;
FIG. 5 is an exploded view of the spindle connection of the present invention;
FIG. 6 is a schematic view of the inside of the travel bar of the present invention in cross-section;
FIG. 7 is an enlarged view of the mechanism A shown in FIG. 6 according to the present invention.
In the figure: 1. a fixing plate; 2. a fixing device; 201. a limiting rod; 202. connecting blocks; 203. rotating the sleeve; 204. a first screw; 205. a limiting ring; 206. a first spring; 207. a fixing ring; 208. a round bar; 209. a connector; 210. a travel bar; 211. a round block; 212. a connecting frame; 213. a moving block; 214. a second screw; 215. a first rotating handle; 216. a third screw; 217. a limiting block; 218. a rotating shaft; 219. a second rotating handle; 220. a limiting ring; 221. a limit baffle; 3. an auxiliary device; 31. pressing a plate; 32. a fourth screw; 33. a telescopic rod; 34. a non-slip mat; 35. a third rotating handle; 36. a first electromagnet; 37. a second electromagnet; 401. a hemostatic section; 402. a connecting rod; 403. an insertion block; 404. a plug rod; 405. compressing the spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
Referring to fig. 1-7, a cardiovascular intervention device, including a fixing plate 1, a fixing device 2 is disposed on the surface of the fixing plate 1, the fixing device 2 includes a first screw 204, the bottom end of the first screw 204 is fixedly connected with the fixing plate 1, a rotating sleeve 203 penetrates through the surface thread of the first screw 204, the bottom of the rotating sleeve 203 is rotatably connected with a connecting block 202, the surface of the first screw 204 movably penetrates through the connecting block 202, two limiting rods 201 are fixedly connected with the bottom of the connecting block 202, the surface of the limiting rod 201 slides to penetrate through the fixing plate 1, when the rotating sleeve 203 is rotated, the connecting block 202 is limited by the limiting rods 201, so that the connecting block 202 can only follow the rotating sleeve 203 to move in the vertical direction, and cannot rotate in the horizontal direction, thereby realizing the height adjustment of the device.
The fixing device 2 comprises a connecting block 202, a round rod 208 is arranged on the side wall of the connecting block 202, a rotating shaft 218 is sleeved inside the round rod 208, the rotating shaft 218 is rotatably connected with the connecting block 202, a limiting ring 205 is slidably connected to one side, close to the connecting block 202, of the round rod 208, one side, far away from the connecting block 202, of the limiting ring 205 is connected with a fixing ring 207 through a first spring 206, a second wedge-shaped block is arranged on one side, close to the connecting block 202, of the limiting ring 205, two corresponding first limiting grooves are formed in the rotating shaft 218, a first wedge-shaped block is arranged in each first limiting groove, one end of each first wedge-shaped block is fixedly connected with each first limiting groove through a spring, and the other end of each first wedge-shaped block is in wedge-shaped fit with the second wedge-shaped block to limit rotation of the rotating shaft 218; through the setting of second wedge and first wedge, when first spring 206 is in free telescopic state, the first wedge of second wedge through wedge fit extrusion, make first wedge remove to first spacing inslot, thereby form fixed connection between messenger's pivot 218 and the connecting block 202, it dies to lock the device deflection angle, when pulling spacing ring 205 and removing to solid fixed ring 207 direction, the second wedge separates with first wedge, remove the restriction to first wedge, first wedge will be popped out under the effect of first spacing inslot spring, thereby remove the restriction of pivot 218, pivot 218 is connected for rotating with connecting block 202 this moment, thereby carry out angle modulation to the device.
One end of the round rod 208, which is far away from the connecting block 202, is provided with a connecting head 209, a moving rod 210 is arranged inside the connecting head 209, one side of the surface of the moving rod 210 is provided with a long groove, a second limiting groove is formed in the moving rod 210, one end of the moving rod 210 is provided with a third screw 216, one end of the third screw 216 is rotatably connected with a limiting block 217, the other end of the third screw is provided with a second rotating handle 219, the limiting block 217 is in sliding connection with the long groove, the other end of the moving rod 210 is provided with a clamping assembly, the clamping assembly further comprises a round block 211, firstly, the limiting block 217 and the round block 211 are respectively arranged at two ends of the connecting head 209, and the position of the moving rod 210 is fixed through the mutual matching of the limiting block 217 and the round block 211, so that the problem that the puncture needle moves in the vertical direction when the puncture needle is inserted is solved.
Secondly, through the arrangement of the limiting block 217 and the second rotating handle 219, the third screw 216 drives the limiting block 217 to move in the moving rod 210 by rotating the second rotating handle 219, so as to limit the movement amount of the puncture needle, further control the puncture depth of the puncture needle, and avoid the problem of deeper or shallower puncture.
The round block 211 is fixedly connected with the moving rod 210, the connecting frame 212 is arranged on the surface of the round block 211, a through hole is formed in the surface of the connecting frame 212, the moving block 213 is connected to the inside of the through hole in a sliding mode, the second screw 214 is connected to the surface of the moving block 213 in a rotating mode, the connecting frame 212 penetrates through surface threads of the second screw 214, a first rotating handle 215 is fixedly connected to a port of the second screw 214, the puncture needle is placed in the through hole through the arrangement of the first rotating handle 215 and the matching of the moving block 213 when the puncture needle needs to be fixed, the puncture needle is clamped by rotating the first rotating handle 215 to enable the moving block 213 to move in the through hole, and the puncture needle is clamped, so that clamping of puncture needles with different diameters is achieved, and the application range of the device is improved.
Furthermore, the puncture needle is conveniently fixed, the puncture of the puncture needle is more stable by adjusting the angle and the length, and both hands can be liberated after the puncture, so that the operation is convenient.
Further, the surface of the fixing plate 1 is provided with the auxiliary device 3, the auxiliary device 3 comprises two telescopic rods 33, the bottom ends of the telescopic rods 33 are fixedly connected with the fixing plate 1, the top end of the telescopic rods 33 is fixedly connected with a pressing plate 31, a fourth screw rod 32 penetrates through the surface threads of the pressing plate 31, the bottom end of the fourth screw rod 32 is rotatably connected with the fixing plate 1, the top end of the fourth screw rod 32 is fixedly connected with a third rotating handle 35, the mutually adjacent sides of the fixing plate 1 and the pressing plate 31 are fixedly connected with anti-slip pads 34, the fixing plate 1 is placed at the bottom of the bed plate, the pressing plate 31 is placed at the top of the bed plate, then the third rotating handle 35 is rotated, the third rotating handle 35 drives the fourth screw rod 32 to rotate, the two limiting rods 201 limit the movement of the pressing plate 31, so that the pressing plate 31 can move downwards under the rotation of the fourth screw rod 32, and the pressing plate 31 and the fixing plate 1 are used for extruding and fixing, utilize two slipmats 34 to strengthen the stability after fixing, avoid appearing the phenomenon of skidding, through setting up auxiliary device 3, conveniently fix the device, reduce loaded down with trivial details that brings when fixed, conveniently operate.
During use, the puncture needle is firstly installed on the connecting frame 212, the first rotating handle 215 is rotated, the first rotating handle 215 drives the second screw 214 to rotate, the second screw 214 drives the moving block 213 to move when rotating, so that the puncture needle is fixed in the through hole on the connecting frame 212 by using the moving block 213, then the whole device is fixed on a bed plate, the height of the puncture needle is adjusted, the rotating sleeve 203 is directly rotated during operation, the connecting block 202 is driven to move when the rotating sleeve 203 rotates, the two limiting rods 201 limit the connecting block 202 to only move in the vertical direction, so that the height of the round rod 208 is changed by the movement of the connecting block 202, the purpose of changing the height of the puncture needle is achieved, the inclination angle of the puncture needle needs to be adjusted during puncture, the limiting ring 205 is pulled to move towards the direction of the fixing ring 207, and the second wedge-shaped block removes the limitation on the first wedge-shaped block, the first wedge-shaped block is separated from the rotating shaft 218 under the action of the spring, at the moment, the rotating shaft 218 rotates on the side wall of the connecting block 202, so that the moving rod 210 on the connecting head 209 and the connecting head 209 rotates to achieve the purpose of changing the angle of the puncture needle, the limiting ring 205 is directly loosened after the angle is adjusted, under the action of the first spring 206, the limiting ring 205 returns to the initial position, the second wedge-shaped block pushes the first wedge-shaped block to move towards the first limiting groove again to limit the rotation of the rotating shaft 218 and achieve the purpose of fixing, at the moment, the puncture needle can be punctured by directly pushing the moving rod 210, the second rotating handle 219 can be directly rotated by holding the puncture depth, the second rotating handle 219 drives the third screw rod 216 to rotate, so as to drive the sliding block to move, the length of the moving rod 210 when being pushed can be limited by the position of the sliding block, and further the puncture depth can be controlled, avoiding the problem of deeper or shallower puncture.
In summary, by rotating the rotating sleeve 203, the rotating sleeve 203 drives the connecting block 202 to move when rotating, the two limiting rods 201 limit the connecting block 202 to move only in the vertical direction, so that the height of the round rod 208 is changed by the movement of the connecting block 202, so as to achieve the purpose of changing the height of the puncture needle, the inclination angle of the puncture needle needs to be adjusted during puncture, the limit ring 205 is pulled to move towards the direction of the fixed ring 207, the second wedge block releases the limit on the first wedge block, at this time, the rotating shaft 218 rotates on the side wall of the connecting block 202, thereby leading the connector 209 and the movable rod 210 on the connector 209 to rotate, achieving the purpose of changing the angle of the puncture needle, leading the puncture of the puncture needle to be more stable by adjusting the angle and the length, and can liberate both hands after the puncture, effectively solved operating personnel puncture needle when using the pjncture needle and deflect and lead to the problem of accidental injury blood vessel.
Example two
Based on the above described embodiments, the operator has found that the angle is not adjustable since the device fixes the puncture needle; in the puncture process, the tolerance degree or the response of different patients to puncture pain are different; some patients with lower pain tolerance react over-excitation in the puncture process or pain after puncture causes the patients to move disorderly, and at the moment, the puncture needle cannot move along with the patients because the puncture needle is completely fixed in position, so that the puncture needle keeps the original position after the patients move to accidentally injure and puncture the blood vessels of the patients; to overcome the above problems, the inventors have further improved this as follows.
Two limit baffles 221 are arranged at one end, close to the movable rod 210, of the rotating shaft 218, the two limit baffles 221 are respectively arranged on two sides of the movable rod 210 and are in sliding connection with the movable rod 210, one side, close to the movable rod 210, of each limit baffle 221 is elastically connected with the first electromagnet 36 through an elastic telescopic rod, the first electromagnet 36 is located in a second limit groove, one side, close to the clamping assembly, of the second limit groove is provided with a second electromagnet 37, a switch is arranged on the fixing ring 207 and is used for controlling the electrification and the outage of the first electromagnet 36, the first electromagnet 36 comprises an iron core and an electrified coil, and the second electromagnet 37 comprises an electrified coil; the clamping assembly comprises a limiting ring 220, and a pressure sensor is arranged in the limiting ring 220 and used for detecting the pressure value of the puncture aiming at the limiting ring 220.
First, when the angle of the device needs to be adjusted, the switch is pressed by pulling the limiting ring 205 to move towards the fixing ring 207, the limit of the rotating shaft 218 is released, the switch is pressed, the first electromagnet 36 is electrified, the magnetic connection is formed between the first electromagnet 36 and the moving rod 210, the moving rod 210 and the rotating shaft 218 are fixedly connected, and the angle of the device is adjusted by rotating the moving rod 210.
Secondly, when the puncture operation is performed on a patient through the device, the puncture needle is fixed above the operation position of the patient through the clamping assembly, and the tightness of the clamping position of the puncture needle is adjusted by rotating the first rotating handle 215, so that the puncture needle can perform small-amplitude self-adjustment along with the movement of the patient; through the pressure sensor who sets up in spacing ring 220, when the patient appears and moves by a wide margin, the pjncture needle will contact and extrude spacing ring 220 with spacing ring 220, feedback to the pressure value of the control unit through pressure sensor, the control unit control second electro-magnet 37 is circular telegram, first electro-magnet 36 cuts off the power supply, second electro-magnet 37 is circular telegram, second electro-magnet 37 produces magnetic attraction to limit baffle 221, make the carriage release lever 210 to the motion of first electro-magnet 36 direction through the magnetic attraction of second electro-magnet 37 to limit baffle 221, thereby make pjncture needle and patient separate, avoid the patient to move by a wide margin the back pjncture needle still keep unchangeably puncture patient's blood vessel and carve the problem of cutting open.
Finally, when the displacement of the movable rod 210 is increased by adjusting the limit block 217, the distance between the limit block 217 and the round block 211 is increased, the limit block 217 and the round block 211 cannot limit the movement of the movable rod 210, the first electromagnet 36 is controlled to be opened by the control unit at the moment, magnetic attraction is generated between the first electromagnet 36 and the movable rod 210, the movable rod 210 is limited by the mutual matching of the limit block 217 and the first electromagnet 36, and the problem that the blood vessel of the patient is scratched due to the fact that the puncture needle moves when being pricked into the body of the patient is solved.
EXAMPLE III
Based on the embodiment, the operator finds that the retraction of the puncture needle is often a sudden action when the patient performs a large-amplitude action, but the puncture part cannot be sterilized and pressed for hemostasis by adopting a sterilized cotton swab, a tourniquet and the like at the moment, so that potential safety hazards are caused to the patient; to overcome the above problems, the inventors have further improved this as follows.
The connector 209 is equipped with the third spacing groove near the one end of circle piece 211, sliding connection has hemostasis portion 401 in the third spacing groove, hemostasis portion 401 is through connecting rod 402 and grafting piece 403 fixed connection, the inserting groove has been seted up on grafting piece 403, it has peg graft pole 404 to peg graft in the inserting groove, peg pole 404 is close to second electro-magnet 37 one side and is equipped with spacing spring, peg graft piece 403 bottom is through compression spring 405 and third spacing groove elastic connection, thereby make grafting piece 403 position unable removal through the grafting setting with grafting piece 403 and peg pole 404, after grafting piece 403 and peg pole 404 alternate segregation, remove the restriction of grafting piece 403, the grafting piece 403 pushes hemostasis portion 401 outward movement under the effect of compression spring 405, carry out hemostasis by compression disinfection to the puncture position for the patient puncture position.
After the second electromagnet 37 that is powered on moves into the connector 209, the second electromagnet 37 generates magnetic attraction to the insertion rod 404 to make the insertion rod 404 extrude the limiting spring and move towards the second electromagnet 37, so as to remove the limitation to the insertion block 403, the compression spring 405 pushes the insertion block 403 to move outwards to make the hemostatic section 401 extend out of the connector 209, at this time, the puncture part of the patient can be extruded onto the hemostatic section 401 to sterilize the puncture part, and hemostasis by compression is performed.
Example four
A method of operating a cardiovascular intervention device, the method of operation comprising the steps of:
s1, placing the fixing plate 1 at the bottom of the workbench, rotating the third rotating handle 35, driving the fourth screw 32 to rotate by the third rotating handle 35, and enabling the pressing plate 31 to move downwards, so that the pressing plate 31 and the fixing plate 1 extrude and fix the bed plate;
s2, fixing the puncture needle on the through hole on the surface of the connecting frame 212 through the moving block 213;
s3, the rotating sleeve 203 drives the connecting block 202 to move by rotating the rotating sleeve 203, and the height of the round rod 208 is changed by the movement of the connecting block 202;
s4, the limiting ring 205 is pulled to move towards the direction of the fixing ring 207, the second wedge block releases the limitation on the first wedge block, the rotating shaft 218 rotates on the side wall of the connecting block 202, the puncture needle is aligned to the position needing to be punctured, and the angle of the connecting head 209 is adjusted;
s5, the third screw 216 is rotated through the second rotating handle 219, so that the third screw 216 drives the limiting block 217 to move, the moving distance of the moving rod 210 on the connecting head 209 is limited, and the puncture depth of the puncture needle is adjusted;
s6, when the patient moves greatly, the control unit controls the first electromagnet 36 to be powered off and the second electromagnet 37 to be powered on, so that the moving rod 210 moves towards the first electromagnet 36 quickly under the action of the magnetic attraction force of the second electromagnet 37, and the puncture position of the patient is prevented from being accidentally injured by the puncture needle;
and S7, when the second electromagnet 37 is moved into the connector 209, the second electromagnet 37 moves the insertion rod 404 toward the second electromagnet 37 by magnetic attraction to release the restriction of the insertion block 403, and the compression spring 405 pushes the insertion block 403 to move outward to make the hemostatic section 401 extend out of the connector 209 to perform hemostasis and disinfection on the punctured part.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A cardiovascular intervention device comprises a fixed plate and is characterized in that a fixing device is arranged on the surface of the fixed plate and comprises a connecting block, a round rod is arranged on the side wall of the connecting block, a rotating shaft is sleeved inside the round rod and is rotationally connected with the connecting block, a limiting ring is slidably connected to one side, close to the connecting block, of the round rod, a second wedge-shaped block is arranged on one side, close to the connecting block, of the limiting ring, one side, far away from the connecting block, of the limiting ring is connected with a fixing ring through a first spring, the fixing ring is fixedly connected with the round rod, a connector is arranged at one end, far away from the connecting block, of the round rod, a moving rod is arranged inside the connector, an elongated slot is formed in one side of the surface of the moving rod, a second limiting slot is formed in the moving rod, a third screw rod is arranged at one end of the moving rod, one end of the third screw rod is rotationally connected with a limiting block, the other end of the movable rod is provided with a second rotating handle, the limiting block is connected with the long groove in a sliding mode, the other end of the movable rod is provided with a clamping assembly, the clamping assembly comprises a limiting ring, and a pressure sensor is arranged in the limiting ring;
a third limiting groove is formed in one end, close to the round block, of the connector, a hemostasis part is connected in the third limiting groove in a sliding mode, the hemostasis part is fixedly connected with the inserting block through a connecting rod, an inserting groove is formed in the inserting block, an inserting rod is inserted in the inserting groove, a limiting spring is arranged on one side, close to the second electromagnet, of the inserting rod, and the bottom of the inserting block is elastically connected with the third limiting groove through a compression spring;
the rotating shaft is provided with two limiting baffles at one end close to the moving rod, the two limiting baffles are respectively arranged at two sides of the moving rod and are in sliding connection with the moving rod, one side of each limiting baffle close to the moving rod is connected with a first electromagnet through an elastic telescopic rod, the first electromagnet is positioned in a second limiting groove, one side of each second limiting groove close to the clamping assembly is provided with a second electromagnet, and the fixing ring is provided with a switch;
when the pressure sensor detects that the pressure of the needle tube on the limiting ring exceeds a preset value, the control unit controls the first electromagnet to be powered off and the second electromagnet to be powered on, magnetic connection is formed between the second electromagnet and the moving rod, meanwhile, the second electromagnet drives the moving rod to move towards the first electromagnet through the magnetic attraction of the second electromagnet on the limiting baffle, and the puncture needle is quickly separated from a patient;
when the second electromagnet is electrified, the second electromagnet moves into the connector, the second electromagnet generates magnetic attraction to the insertion rod to enable the insertion rod to extrude the limiting spring and move towards the direction of the second electromagnet, the limitation of the insertion block is removed, and the compression spring pushes the insertion block to move outwards to enable the hemostasis part to stretch out of the connector to perform compression hemostasis and disinfection on the puncture part.
2. The cardiovascular intervention device of claim 1, wherein the limit ring is pulled to move towards the fixed ring and press the switch to release the limit of the rotating shaft, the first electromagnet is energized, the first electromagnet is magnetically connected with the moving rod, the moving rod is fixedly connected with the rotating shaft, and the angle of the device is adjusted by rotating the moving rod.
3. The cardiovascular intervention device of claim 1, wherein the clamping assembly further comprises a round block, the round block is fixedly connected with the moving rod, a connecting frame is arranged on the surface of the round block, and a through hole is formed in the surface of the connecting frame.
4. The cardiovascular intervention device of claim 3, wherein a moving block is slidably connected inside the through hole, a second screw rod is rotatably connected to the surface of the moving block, a surface thread of the second screw rod penetrates through the connecting frame, a first rotating handle is fixedly connected to a port of the second screw rod, and the moving block is fixedly connected to the limiting ring.
5. The cardiovascular intervention device of claim 1, wherein the fixing device further comprises a first screw, a bottom end of the first screw is fixedly connected with the fixing plate, a rotating sleeve is connected to the first screw in a threaded manner, a bottom of the rotating sleeve is rotatably connected with the connecting block, the connecting block is slidably connected with the first screw, and a limiting rod is arranged on the fixing plate and slidably connected with the connecting block.
6. The cardiovascular intervention device of claim 1, wherein the shaft has two corresponding first limiting grooves, the first limiting grooves have a first wedge-shaped block, one end of the first wedge-shaped block is fixedly connected to the first limiting groove through a second spring, and the other end of the first wedge-shaped block is in wedge-shaped engagement with the second wedge-shaped block.
7. The cardiovascular intervention device of claim 1, wherein the surface of the fixing plate is provided with an auxiliary device, the auxiliary device comprises two telescopic rods, the bottom ends of the telescopic rods are fixedly connected with the fixing plate, the top ends of the telescopic rods are fixedly connected with a pressing plate, a fourth screw rod penetrates through the surface threads of the pressing plate, the bottom end of the fourth screw rod is rotatably connected with the fixing plate, the top end of the fourth screw rod is fixedly connected with a third rotating handle, and the fixing plate and the pressing plate are fixedly connected with anti-skid pads on the sides close to each other.
8. A method of operating a cardiovascular intervention device to puncture a patient with the cardiovascular intervention device of any of claims 1-7, wherein: the method comprises the following steps:
s1, placing the fixed plate at the bottom of the workbench, and rotating a third rotating handle, wherein the third rotating handle drives a fourth screw rod to rotate and enables a pressure plate to move downwards, so that the pressure plate and the fixed plate extrude and fix the bed plate;
s2, fixing the puncture needle on the through hole on the surface of the connecting frame through the moving block;
s3, rotating the rotating sleeve to drive the connecting block to move, and changing the height of the round rod through the movement of the connecting block;
s4, the limiting ring is pulled to move towards the direction of the fixing ring, the second wedge block releases the limitation on the first wedge block, the rotating shaft rotates on the side wall of the connecting block, the puncture needle is aligned to the position needing to be punctured, and the angle of the connector is adjusted;
s5, rotating the third screw rod through the second rotating handle to enable the third screw rod to drive the limiting block to move, so that the moving distance of the moving rod on the connector is limited, and the puncture depth of the puncture needle is adjusted;
s6, when the patient moves greatly, the control unit controls the first electromagnet to be powered off and the second electromagnet to be powered on, so that the moving rod can move towards the first electromagnet rapidly under the action of the magnetic attraction force of the second electromagnet, and the puncture needle is prevented from accidentally injuring the puncture part of the patient;
s7, when the second electromagnet is electrified, the second electromagnet moves to the connector, the second electromagnet enables the insertion rod to move towards the direction of the second electromagnet through magnetic attraction to remove the limitation of the insertion block, and the compression spring pushes the insertion block to move outwards to enable the hemostasis part to stretch out of the connector to perform compression hemostasis and disinfection on the puncture part.
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| CN114145815B (en) | 2022-11-18 |
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