Disclosure of Invention
The invention aims to provide an ultrasonic probe puncture device with an adjustable angle, and aims to solve the problem that the existing puncture device is inconvenient to adjust the angle and has large use limitation.
The technical scheme for solving the technical problems is as follows:
an adjustable angle ultrasound probe lancing apparatus comprising: the ultrasonic probe comprises a fixed component fixed on the ultrasonic probe and a movable component connected with the fixed component;
the movable assembly includes: a rotary guide mechanism and a sliding guide mechanism which are respectively connected with the end face of the fixed component far away from the ultrasonic probe, and puncture catheters respectively penetrate through the rotary guide mechanism and the sliding guide mechanism
The fixing component is used for connecting with the ultrasonic probe and installing and fixing the movable component. When the ultrasonic probe is in contact with a human body to carry out ultrasonic development, the rotary guide mechanism and the sliding guide mechanism respectively drive the two ends of the puncture catheter to move, the inclination angle of the puncture catheter is adjusted, and the puncture needle enters the human body at a proper angle through the guidance of the puncture catheter, so that an ideal puncture effect is achieved.
Further, the above-mentioned rotation guide mechanism includes: the first guide block is connected with the fixed assembly, the rotating fluted disc is positioned on the first guide block, the driving gear is in rotating fit with the rotating fluted disc, and the spiral rod is connected to the end face of the driving gear; the rotating fluted disc is connected with the first guide block through a rotating shaft, and a first guide hole matched with the puncture guide pipe is further formed in the rotating fluted disc.
The first guide block of the rotary guide mechanism is connected with the fixing component for supporting and fixing, a worker can rotate the driving gear by screwing the screw rod, so that the rotary fluted disc synchronously rotates, the first guide hole matched with the puncture catheter rotates along with the rotary fluted disc, the puncture catheter is driven to move in position, and the rotation of the rotary fluted disc drives the puncture catheter to adjust the angle.
Furthermore, the first guide hole is of a structure with a narrow middle part and wide two ends, and a first ball which is in contact fit with the puncture catheter is embedded in the hole wall of the first guide hole.
According to the invention, the first ball is in contact fit with the puncture guide pipe, the puncture guide pipe can synchronously rotate when the rotary fluted disc rotates, and two ends of the first guide hole are wider than the puncture guide pipe, so that interference with the side wall of the first guide hole is avoided when the puncture angle changes.
Furthermore, the top end of the rotating shaft is provided with a supporting step contacted with the bottom surface of the rotating fluted disc, and the bottom end of the rotating shaft is connected with the first guide block through a bearing
The rotating shaft is provided with the supporting steps for supporting the rotating fluted disc, and the rotating shaft and the first guide block rotate relatively through the bearing.
Further, the slide guide mechanism includes: the second guide block is connected with the fixed component, the guide groove block is connected with the second guide block, a spiral sliding groove is formed in the guide groove block, a spiral sliding block is connected to the spiral sliding groove in a sliding mode, and the puncture guide pipe penetrates through the spiral sliding block.
The spiral sliding block can spirally move along the spiral sliding groove to drive one end of the puncture catheter to change the position, so that the spiral adjustment of the end part of the puncture catheter is realized, and the angle adjusting range of the puncture catheter is expanded.
Furthermore, the top end of the spiral sliding block is provided with a sliding table matched with the spiral sliding groove, the inner wall of the spiral sliding block is of a cambered surface structure with a narrow middle part and wide two ends, and the cambered surface structure is in contact fit with the puncture catheter
The spiral sliding block slides along the spiral sliding groove through the sliding table, the middle position of the inner wall of the spiral sliding block is in contact with the puncture catheter, the outer diameters of the two ends of the inner wall are larger than those of the puncture catheter, and the puncture catheter can conveniently rotate in the inner groove of the spiral sliding block.
Further, the fixing assembly includes: the ultrasonic probe comprises a fixed block contacted with the ultrasonic probe and arc clamps respectively hinged on two sides of the fixed block, and the fixed block is respectively connected with a rotary guide mechanism and a sliding guide mechanism.
The fixing block is clamped on the outer wall of the ultrasonic probe through the arc-shaped clamps at the two ends, so that the fixing of the relative position of the fixing block and the ultrasonic probe is realized.
Furthermore, the end parts of the two arc clamps far away from the fixed block are respectively provided with a boss, the bosses are provided with through holes and are connected through clamping pins
The two arc clamps are respectively provided with the bosses and are connected through the bayonet lock, so that the arc clamps and the ultrasonic probe are prevented from easily changing positions.
Further, the puncture catheter includes: the thin section is matched with the rotary guide mechanism and the thick section is matched with the sliding guide mechanism, the thin section is in sliding fit with the thick section, and the inner diameter of the end part of the thick section far away from the thin section is consistent with that of the thin section
The puncture catheter can be stretched and slid, the guide length of the puncture catheter can be conveniently adjusted according to the length of the puncture needle, the inner diameter of the end part of the thick section far away from the thin section is limited, and the puncture needle can be prevented from abutting and interfering with the inner wall of the thick section.
Furthermore, a probe mechanism is embedded at the end part of the thick section, which is far away from the thin section, and the probe mechanism is used for transmitting signals simulating a puncture path.
The invention further ensures that the puncture angle is proper by embedding the probe mechanism at the end part of the thick section for sending a signal to simulate the puncture angle of the puncture needle guided by the puncture catheter.
The invention has the following beneficial effects:
(1) the fixing component is used for connecting with the ultrasonic probe and installing and fixing the movable component. When the ultrasonic probe is in contact with a human body to carry out ultrasonic development, the rotary guide mechanism and the sliding guide mechanism respectively drive the two ends of the puncture catheter to move, the inclination angle of the puncture catheter is adjusted, and the puncture needle enters the human body at a proper angle through the guidance of the puncture catheter, so that an ideal puncture effect is achieved.
(2) The rotary guide mechanism and the sliding guide mechanism respectively drive the two ends of the puncture catheter to move, so that the guide angle of the puncture catheter is adjusted, and the puncture needle can quickly find a proper puncture angle.
(3) The inner walls of the first guide groove and the spiral sliding block are of structures with two wide ends and a narrow middle part, so that the first guide groove and the spiral sliding block can be contacted with the puncture catheter for guiding, and can be effectively avoided when the puncture catheter rotates, and the two ends of the puncture catheter are prevented from rotating and interfering.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1, an adjustable angle ultrasonic probe penetrating device includes: a fixed assembly 20 fixed to the ultrasonic probe 10, and a movable assembly 30 connected to the fixed assembly 20.
The fixing assembly 20 includes: a fixed block 21 contacted with the side wall of the ultrasonic probe 10 and arc clamps 22 respectively hinged at both sides of the fixed block 21, wherein the fixed block 21 and the arc clamps 22 are specially designed for the shape of the ultrasonic probe 10. The end face of the fixed block 21 far away from the ultrasonic probe 10 is contacted with the movable assembly 30, and the movable assembly 30 can be connected to the ultrasonic probe 10 through the fixed block 21 and the arc clamp 22, so that the puncture is conveniently completed under the ultrasonic development by matching with the ultrasonic probe 10.
The end parts of the arc clamps 22 far away from the fixed block 21 are respectively provided with a boss 23, and the bosses 23 are provided with corresponding through holes, so that the two arc clamps 22 can be connected and fixed through the bayonet pins, and the arc clamps 22 are prevented from easily changing positions relative to the ultrasonic probe 10.
The movable assembly 30 includes: a rotating guide mechanism 31 connected to the top end of the fixed block 21, a sliding guide mechanism 32 connected to the bottom end of the fixed block 21, and a puncture catheter 33 respectively penetrating through the rotating guide mechanism 31 and the sliding guide mechanism 32. The rotary guide mechanism 31 can change the position of the top end of the puncture catheter 33 by its own movement, and the slide guide mechanism 32 can change the position of the bottom end of the puncture catheter 33 by its own movement, thereby adjusting the inclination angle of the puncture catheter 33.
Referring to fig. 2 and 3, the rotation guide mechanism 31 includes: the first guide block 311 connected with the fixed block 21, the rotating toothed disc 312 positioned above the first guide block 311, the driving gear 313 rotationally matched with the rotating toothed disc 312, and the screw rod 314 connected with the end face of the driving gear 313. The outer wall of the screw rod 314 is provided with knurls, so that workers can conveniently screw and rotate. The screw rod 314 is located at the center of the top surface of the driving gear 313, and can drive the driving gear 313 to rotate. The side wall of the rotating gear disc 312 is provided with teeth engaged with the driving gear 313, so that the driving gear 313 can drive the rotating gear disc 312 to rotate synchronously when rotating. The rotating toothed disc 312 is connected to the first guide block 311 through a rotating shaft 315, and a bottom end of the rotating shaft 315 is disposed on the first guide block 311 through a bearing, so that the rotating shaft 315 and the rotating toothed disc 312 can perform a rotational motion relative to the first guide block 311. The top of the rotating shaft 315 is provided with a supporting step 318 contacting with the bottom surface of the rotating toothed disc 312, and the rotating toothed disc 312 is supported by the supporting step 318.
And the first guiding block 311 is a T-shaped structure, and a portion of the first guiding block located below the rotating toothed disc 312 is a rod with a relatively small size, so that the rotation of the puncture catheter 33 is not interfered too much. And because of the existence of the first guide block 311, the driving gear 313 and the rotating gear disc 312 can not do continuous circular motion but do reciprocating motion within a certain range, so that the puncture catheter 33 is prevented from colliding with the first guide block 311.
The rotating toothed disc 312 is further provided with a first guide hole 316 adapted to the puncturing catheter 33, and the first guide hole 316 performs a circular motion along with the rotation of the rotating toothed disc 312, so as to drive the top end of the puncturing catheter 33 to perform a position change. The first guide hole 316 is narrow in the middle and wide at two ends, and the first ball 317 in contact fit with the puncture catheter 33 is embedded in the middle of the hole wall of the first guide hole 316, when the first guide hole 316 does circular motion, the puncture catheter 33 also rotates, the first ball 317 rolls with the outer wall of the puncture catheter 33, and friction resistance generated to the rotation of the puncture catheter 33 is avoided. And the inner diameters of both ends of the first guide hole 316 are larger than the outer diameter of the puncture guide tube 33, so that the puncture guide tube 33 can be rotated in a wide range in the first guide hole 316 without generating shaft resistance to the puncture guide tube 33.
Referring to fig. 4 and 5, the slide guide mechanism 32 includes: the puncture guiding device comprises a second guide block 321 connected with the fixed block 21 and a guide groove block 322 connected with the second guide block 321, wherein a penetrating spiral sliding groove 323 is formed in the guide groove block 322, the spiral sliding groove 323 is connected with an occasional spiral sliding block 324 in a sliding mode, the bottom end of the puncture guiding pipe 33 penetrates through the spiral sliding block 324, and the puncture guiding pipe 33 is guided to adjust the guiding angle along with the movement of the spiral sliding block 324 along the spiral sliding groove 323.
The end of the spiral sliding groove 323 is communicated with the end surface of the guide groove block 322 far away from the second guide block 321, so that the spiral sliding block 324 can be conveniently put in or taken out. The top end of the spiral sliding block 324 is provided with a sliding table 325 matched with the spiral sliding groove 323, so that the spiral sliding block 324 cannot easily slide out of the spiral sliding groove 323. The inner wall of the through hole of the spiral chute 323 is a structure with two wide ends and a narrow middle, so that when the puncture catheter 33 rotates in the spiral slider 324, the puncture catheter 33 can be prevented from interfering with the inner wall of the through hole.
Referring to fig. 1 and 6, the puncture catheter 33 includes: a thin section 331 matched with the first guiding hole 316 and a thick section 332 matched with the spiral sliding block 324, wherein the thick section 332 and the thin section 331 can be matched in a sliding way, so that the guiding length of the puncture catheter 33 can be adjusted conveniently according to the length requirement of the puncture needle. And the inner diameter of the end of the thick section 332 far away from the thin section 331 is consistent with the inner diameter of the thin section 331, so that the puncture needle is prevented from colliding with the inner wall of the thick section 332 when passing out of the thick section 332.
The end of the thick section 332 far away from the thin section 331 is further provided with a probe mechanism 34, and the probe mechanism 34 is used for sending a signal to the human body, wherein the signal medium is a medium which can be developed by the ultrasonic probe 10 and is used for simulating the guiding direction of the puncture catheter 33 (i.e. the puncture path of the puncture needle), so that the puncture precision is further ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.