Ultrasonic guided puncture deviceTechnical Field
The invention belongs to the technical field of medical appliances, and particularly relates to an ultrasonic guided puncture device.
Background
The ultrasonic guided puncture device is used for supporting and fixing the puncture needle by configuring a puncture frame for the ultrasonic probe and then performing puncture under the guidance of an ultrasonic instrument. Compared with bare-hand puncture, the puncture needle guided by the puncture frame runs along the guide line set by the ultrasonic equipment, and can accurately reach the puncture target by observing through the ultrasonic monitor.
The existing ultrasonic guided puncture device needs to be fixed through structures such as bolts in advance, when the puncture process needs to be moved along with an ultrasonic instrument, the bolts are required to be unscrewed to adjust the position of the ultrasonic guided puncture device, and the fixing mode is time-consuming and labor-consuming in the adjustment process, so that the operation time is prolonged and the efficiency is low.
Disclosure of Invention
In view of the above, the present invention aims to provide an ultrasonic guided puncture device, so as to solve the technical problem that the adjustment of the existing ultrasonic guided puncture device after fixing is time-consuming and labor-consuming.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides an ultrasonic guided puncture device, which comprises a support frame body, wherein a connecting part detachably connected with an ultrasonic probe is arranged on the support frame body, a chute facing the ultrasonic probe is horizontally arranged on the support frame body, a movable seat is connected in the chute in a sliding manner, a guide frame is arranged on the movable seat, and a mounting frame for placing a puncture needle is arranged on the guide frame; the inside of the support frame body is provided with a cavity, the bottom of the support frame body is provided with a plurality of adsorption holes communicated with the cavity, the inside of the cavity is horizontally and dynamically connected with a connecting plate, the connecting plate is provided with a plurality of connecting grooves opposite to the adsorption holes, the inside of the adsorption holes is vertically and slidingly connected with sealing columns, the tops of the sealing columns penetrate through the connecting grooves, the length of the connecting grooves is larger than the width of the sealing columns, the two sides of the sealing columns are provided with guide grooves inclined towards the connecting parts, and guide rods extending into the guide grooves are fixed on the two side walls of the connecting grooves; the connecting part is provided with a control part for controlling the sliding of the connecting plate.
In the scheme, the support frame body is connected with the ultrasonic probe through the connecting part, so that the support frame body moves on a human body along with the ultrasonic probe; after the ultrasonic probe detects and determines the puncture position, the connecting plate is attached to a human body, then the connecting plate is driven to move towards the ultrasonic probe through the control part, the connecting plate drives the guide rod to horizontally move towards the ultrasonic probe, the sealing column is driven to move upwards by the cooperation between the guide rod and the guide groove, the space in the adsorption hole is expanded, the air pressure in the adsorption hole is reduced, the air pressure in the adsorption hole is lower than the external air pressure, the adsorption hole is adsorbed on the human body, the support frame body is stably fixed on the human body, the puncture needle is prevented from shaking during puncture, and stable support can be provided for the ultrasonic probe, so that the ultrasonic probe is prevented from shaking during puncture and the puncture precision is prevented from being influenced; then the positions of the guide frame and the mounting frame are adjusted through the sliding moving seat, so that the puncture needle is opposite to the puncture area, and the purpose of improving the puncture precision is achieved. When the puncture position needs to be adjusted, the connecting plate is pushed reversely through the control part, the sealing column is reset through the cooperation of the guide rod and the guide groove, and the air pressure in the adsorption hole is recovered, so that the support frame body can move along with the ultrasonic probe.
Further, the periphery of the adsorption hole is provided with a coaxial expansion cavity, the upper end and the lower end of the expansion cavity are provided with a plurality of moving grooves facing the adsorption hole, a plurality of expansion plates are arranged in the expansion cavity, the upper end and the lower end of each expansion plate are in sliding connection with the corresponding moving grooves, and a reset spring is arranged between each expansion plate and each moving groove; the expansion plates are arranged in a downward inclined mode towards the end face of the adsorption hole, the bottoms of the inclined end faces are propped against the bottoms of the sealing columns, sealing plates are arranged between the adjacent expansion plates, guide grooves are formed in the end faces, facing the adsorption hole, of the sealing plates, and support rods in sliding connection with the guide grooves are fixed at the end portions of the expansion plates.
In the initial state, the expansion plate, the sealing plate and the bottom of the sealing column form an internal space of an adsorption hole; when the sealing column moves upwards, the bottom of the sealing column pushes the expansion plate to move towards the direction away from the sealing column by propping against the inclined end face of the expansion plate, and when the expansion plate moves, the synchronous sealing plate is pushed to move through the supporting rod and the guide groove, so that the expansion rate of the space formed among the expansion plate, the sealing plate and the sealing column is larger, the air pressure in the adsorption hole is lower, the adsorption force of the adsorption hole is increased to be stronger, the fixing strength of the supporting frame body is higher and more stable, and the puncture process is prevented from being influenced.
Further, one end of the connecting component is fixedly connected with the support frame body, the other end of the connecting component is rotationally connected with a sleeve which is horizontally arranged, a semicircular connecting frame is slidably connected in the sleeve, the connecting frame cannot rotate relative to the sleeve, and two ends of the connecting frame are clamped with the ultrasonic probe; the connecting part is internally provided with a through groove communicated with the cavity, one end of the connecting plate extends into the through groove and is in sliding connection with the through groove, and the control part is arranged on the connecting part.
Through the sleeve of swivelling joint and the link that slides in the sleeve, make ultrasonic probe can take place the removal of arbitrary angle for adapting unit, the ultrasonic probe of being convenient for is favorable to improving puncture precision for the angular adjustment of support frame body.
Further, a plurality of connecting holes opposite to the adsorption holes are formed in the bottom of the sliding chute, the connecting holes are communicated with the cavity, and a plurality of uniformly distributed limiting grooves are formed in the bottom of the movable seat; the circumference of the sleeve is provided with a plurality of pin grooves, the bottoms of the pin grooves are respectively provided with a through hole facing the through grooves, the circumference of the connecting frame is provided with a plurality of annular grooves which are uniformly distributed, each through hole is connected with a stop lever which is used for extending into the annular groove in a sliding way, one end of each stop lever is positioned in each pin groove, and the same reset spring is arranged between each stop lever and each pin groove; the end part of the connecting plate is fixed with a plug rod for being inserted into the pin groove.
When the connecting plate moves towards the ultrasonic probe, the sealing column moves upwards, and the top of the sealing column stretches into the corresponding limiting groove from the corresponding connecting hole and is inserted into the corresponding limiting groove, so that the movable seat is limited, and the movable seat is prevented from moving in the puncturing process; when the connecting plate moves towards the ultrasonic probe, the inserted link at the end part of the connecting plate stretches into the opposite pin groove to limit the rotation of the sleeve, and when the inserted link is inserted into the pin groove, the inserted link pushes the stop lever in the pin groove to be inserted into the annular groove to limit the sliding of the connecting frame. Namely, when the support frame body is adsorbed on a human body, the movable seat and the ultrasonic probe are synchronously locked, so that the ultrasonic probe is prevented from shaking in the puncturing process, and the guiding of the puncturing process is prevented from being influenced.
Further, the middle part of the sealing column is provided with a rubber block attached to the adsorption hole, and the bottom of the sealing column is provided with a bulge which is propped against the bottom of the opposite end surfaces of the sealing plate.
The tightness to the adsorption hole is enhanced by arranging the rubber block, and meanwhile, the expansion plate is convenient to push to move by utilizing the bulge.
Further, arc-shaped adjusting frames are symmetrically arranged on the movable seat, one end of the guide frame is hinged with the movable seat, sliding rods which are in sliding connection with the adjusting frames are fixed at two ends of the guide frame, and fastening nuts are arranged on the sliding rods; the mounting frame is connected with the guide frame in a sliding manner along the direction parallel to the guide frame, and the guide frame and the mounting frame are fixed in a limiting manner through a limiting pin.
Further, the surfaces of the expansion plate and the sealing plate are provided with rubber layers.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a longitudinal cross-sectional view of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is an enlarged schematic view at B in FIG. 2;
fig. 5 is a horizontal sectional view of the adsorption hole in the present embodiment.
The figures are marked as follows: the device comprises a support frame body 1, a connecting part 2, a sliding chute 3, a movable seat 4, a guide frame 5, a mounting frame 6, a connecting plate 7, an adsorption hole 8, a sealing column 9, a connecting groove 10, a guide groove 11, a guide rod 12, an expansion cavity 13, an expansion plate 14, a return spring 15, a closing plate 16, a guide groove 17, a supporting rod 18, an operation rod 19, a sleeve 20, a connecting frame 21, a pin groove 22, an annular groove 23, a stop lever 24, a plug rod 25, a rubber block 26, a protrusion 27, an adjusting frame 28 and a sliding rod 29.
Detailed Description
As shown in fig. 1 to 5:
the invention provides an ultrasonic guided puncture device, which comprises a support frame body 1, wherein a connecting part 2 detachably connected with an ultrasonic probe is arranged on the support frame body 1, a chute 3 facing the ultrasonic probe is horizontally arranged on the support frame body 1, a movable seat 4 is connected in a sliding manner in the chute 3, a guide frame 5 is arranged on the movable seat 4, and a mounting frame 6 for placing a puncture needle is arranged on the guide frame 5; the inside of the supporting frame body 1 is provided with a cavity, the bottom of the supporting frame body 1 is provided with a plurality of adsorption holes 8 communicated with the cavity, the inside of the cavity is horizontally and dynamically connected with a connecting plate 7, the connecting plate 7 is provided with a plurality of connecting grooves 10 opposite to the adsorption holes 8, the inside of the adsorption holes 8 is vertically and slidably connected with sealing columns 9, the tops of the sealing columns 9 penetrate through the connecting grooves 10, the length of the connecting grooves 10 is greater than the width of the sealing columns 9, two sides of the sealing columns 9 are provided with guide grooves 11 inclined towards the connecting parts 2, and guide rods 12 extending into the guide grooves 11 are fixed on two side walls of the connecting grooves 10; the connecting part 2 is provided with a control part for controlling the sliding of the connecting plate 7.
In the scheme, the support frame body 1 is connected with the ultrasonic probe through the connecting component 2, so that the support frame body 1 moves on a human body along with the ultrasonic probe; after the ultrasonic probe detects and determines the puncturing position, the connecting plate 7 is attached to a human body, then the connecting plate 7 is driven to move towards the ultrasonic probe through the control part, the connecting plate 7 drives the guide rod 12 to move horizontally when facing the ultrasonic probe, the sealing post 9 is driven to move upwards by the cooperation between the guide rod 12 and the guide groove 11, the space in the adsorption hole 8 is expanded, the air pressure in the adsorption hole 8 is reduced, the air pressure in the adsorption hole 8 is lower than the external air pressure, the adsorption hole 8 is adsorbed on the human body, the support frame body 1 is stably fixed on the human body, the puncturing needle is prevented from shaking during puncturing, the ultrasonic probe is also provided with a stable support, and the shaking of the ultrasonic probe during puncturing is avoided, so that the puncturing precision is influenced; then the positions of the guide frame 5 and the mounting frame 6 are adjusted through the sliding moving seat 4, so that the puncture needle is opposite to the puncture area, and the purpose of improving the puncture precision is achieved. When the puncture position needs to be adjusted, the connecting plate 7 is pushed reversely through the control part, the sealing column 9 is reset through the cooperation of the guide rod 12 and the guide groove 11, and the air pressure in the adsorption hole 8 is recovered, so that the support frame body 1 can move along with the ultrasonic probe.
In this embodiment, a coaxial expansion cavity 13 is disposed on the peripheral side of the adsorption hole 8, a plurality of moving grooves facing the adsorption hole 8 are formed at the upper and lower ends of the expansion cavity 13, a plurality of expansion plates 14 are disposed in the expansion cavity 13, the upper and lower ends of the expansion plates 14 are slidably connected with the corresponding moving grooves, and a return spring 15 is welded between the expansion plates 14 and the moving grooves; the expansion plates 14 are arranged in a downward inclined mode towards the end face of the adsorption hole 8, the bottoms of the inclined end faces are propped against the bottoms of the sealing columns 9, sealing plates 16 are arranged between the adjacent expansion plates 14, guide grooves 17 are formed in the end faces, facing the adsorption hole 8, of the sealing plates 16, and supporting rods 18 in sliding connection with the guide grooves 17 are fixed to the end portions of the expansion plates 14.
In the initial state, the expansion plate 14, the closing plate 16 and the bottom of the sealing column 9 form an inner space of the adsorption hole 8; when the sealing column 9 moves upwards, the upper bottom of the sealing column 9 pushes the expansion plate 14 to move towards the direction far away from the sealing column 9 by propping against the inclined end surface of the expansion plate 14, and when the expansion plate 14 moves, the support rod 18 and the guide groove 17 push the synchronous sealing plate 16 to move, so that the expansion rate of the space formed among the expansion plate 14, the sealing plate 16 and the sealing column 9 is larger, the air pressure in the adsorption hole 8 is lower, the adsorption force of the adsorption hole 8 is increased, the fixing strength of the support frame body 1 is higher and more stable, and the puncture process is prevented from being influenced.
In this embodiment, one end of the connecting component 2 is fixedly connected with the support frame 1, the other end of the connecting component 2 is rotatably connected with a sleeve 20 which is horizontally arranged, a semicircular connecting frame 21 is slidably connected in the sleeve 20, the connecting frame 21 cannot rotate relative to the sleeve 20, and two ends of the connecting frame 21 are clamped with the ultrasonic probe; the connecting component 2 is internally provided with a through groove communicated with the cavity, one end of the connecting plate 7 extends into the through groove and is in sliding connection with the through groove, the control component is arranged on the connecting component 2, the control component in the embodiment is an operating rod 19, the movement of the connecting plate 7 is controlled by moving the operating rod 19, and a person skilled in the art can select a cylinder, a motor and other structures to control the movement of the connecting plate 7 according to actual conditions.
Through the sleeve 20 that rotates the connection and the link 21 that slides in sleeve 20, make ultrasonic probe can take place the removal of arbitrary angle for adapting unit 2, the angular adjustment of ultrasonic probe for support frame body 1 of being convenient for is favorable to improving puncture precision.
In this embodiment, the bottom of the chute 3 is provided with a plurality of connection holes communicated with the cavity, the connection holes are opposite to the corresponding adsorption holes 8, the top of the corresponding sealing column 9 extends into the connection holes, and the bottom of the movable seat 4 is provided with a plurality of uniformly distributed limit grooves (not shown in the figure); the circumference of the sleeve 20 is provided with a plurality of pin grooves 22, the bottoms of the pin grooves 22 are respectively provided with a through hole facing the through grooves, the circumference of the connecting frame 21 is provided with a plurality of annular grooves 23 which are uniformly distributed, each through hole is connected with a stop lever 24 which is used for extending into the annular groove 23 in a sliding way, one end of each stop lever 24 is positioned in each pin groove 22, and the same reset spring 15 is arranged between each stop lever 24 and each pin groove 22; a latch 25 for inserting the pin slot 22 is fixed to the end of the connection plate 7.
When the connecting plate 7 moves towards the ultrasonic probe, the sealing column 9 moves upwards, and the top of the sealing column 9 at the moment stretches into and is inserted into the corresponding limiting groove from the corresponding connecting hole to limit the movable seat 4, so that the movable seat 4 is prevented from moving in the puncturing process; when the connecting plate 7 moves towards the ultrasonic probe, the inserted bar 25 at the end of the connecting plate 7 stretches into the opposite pin groove 22 to limit the rotation of the sleeve 20, and when the inserted bar 25 is inserted into the pin groove 22, the inserted bar 25 pushes the stop bar 24 in the pin groove 22 to be inserted into the annular groove 23 to limit the sliding of the connecting frame 21. Namely, when the support frame body 1 is adsorbed on a human body, the movable seat 4 and the ultrasonic probe are synchronously locked, so that the ultrasonic probe is prevented from shaking in the puncturing process, and the guiding of the puncturing process is prevented from being influenced.
In this embodiment, a rubber block 26 attached to the adsorption hole 8 is disposed in the middle of the sealing column 9, and a protrusion 27 that abuts against the bottom of the opposite end surface of the sealing plate 16 is disposed at the bottom of the sealing column 9; the tightness of the adsorption hole 8 is enhanced by providing the rubber block 26, and the expansion plate 14 is pushed to move by utilizing the bulge 27.
In this embodiment, arc-shaped adjusting frames 28 are symmetrically welded on the movable seat 4, one end of the guiding frame 5 is hinged with the movable seat 4, two ends of the guiding frame 5 are welded with sliding rods 29, the sliding rods 29 are slidably connected with the corresponding adjusting frames 28, and fastening nuts are connected to the sliding rods 29 in a threaded manner; the mounting frame 6 is slidably connected with the guiding frame 5 along a direction parallel to the guiding frame 5, and the guiding frame 5 and the mounting frame 6 are fixed in a limiting manner by a limiting pin (conventional technical means for those skilled in the art and not shown in the figure).
The angle of the guide frame 5 is adjusted by the adjusting frame 28, so that the puncture angle of the puncture needle is adjusted; the slide bar 29 plays a guiding role in the angle adjustment of the guide frame 5.
In this embodiment, rubber layers are disposed on the surfaces of the expansion plate 14 and the closing plate 16; the sealing performance to the adsorption hole 8 is enhanced by the rubber layer.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.