CN111557746A

CN111557746A - Nerve block pjncture needle fixing device under ultrasonic guidance

Info

Publication number: CN111557746A
Application number: CN202010431776.4A
Authority: CN
Inventors: 姜梦露; 芮永军; 刘祯庆; 王雪芝
Original assignee: Wuxi No 9 Peoples Hospital
Current assignee: Wuxi No 9 Peoples Hospital
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-08-21
Anticipated expiration: 2040-05-20
Also published as: CN111557746B

Abstract

The invention provides a fixing device for a nerve block puncture needle under ultrasonic guidance, which relates to the technical field of puncture needle placement. Insert the box body with the sleeve along the needle inlet, the sleeve passes through inside the bearing inner ring gets into round groove between regulating block and the clamp plate the two, make the clamp plate slide in the slide surface with the help of the bearing through pressing down the clamp plate, utilize the clamp plate to promote the regulating block and slide at the internal diapire of box, along with clamp plate downstream makes the angle between clamp plate and the regulating block diminish, the round groove is inside to be equipped with rubber cushion and increases the frictional force between round groove and the sleeve, because two round grooves all are greater than the quarter circle, clip two walls about the sleeve during rotation, thereby avoid the sleeve to be cylindric, the easy problem that rolls of cylindric sleeve.

Description

Nerve block pjncture needle fixing device under ultrasonic guidance

Technical Field

The invention relates to the technical field of puncture needle placement, in particular to a fixing device for a nerve block puncture needle under ultrasonic guidance.

Background

The pjncture needle is the metal needle that the diameter is littleer, and the pjncture needle is because the small often placing of autogenous volume is used for placing a section of thick bamboo inside specially depositing, in order to increase the ability that student's actual hands-on used pjncture needle, and teacher often lets the student hold the pjncture needle and operate on experimental model during the teaching, owing to consider the cost of experimental apparatus and be operated on the model, the pjncture needle often carries out repetitious usage.

Because the puncture needle has smaller volume and is directly placed in the tray and not easy to be pinched by hands, the puncture needle is usually placed in a specially stored sleeve to avoid the phenomenon, the invention mainly solves the problems that, because the sleeve is cylindrical, the cylindrical sleeve is easy to roll off, and the environment of the operating table is more complex in the experimental teaching process, the place where the sleeve is placed on the frame is difficult to have a foot, the prior patent documents adopt a one-way outlet pointing cylinder and a spring to realize that the puncture needle extends into and out in the use process, such as US2010100113a1 and CN209004144U, most of the storage structures for puncture needles are only that the puncture needle hole is reserved in a closed shell, such as CN110430830A, CN108670336A, therefore, the fixing device is not suitable for the experimental teaching application scene which needs to be taken out and stored repeatedly, and the existing fixing device can not carry out uniform adaptation on the sleeves which contain puncture needles with different numbers and have different sizes.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a nerve block puncture needle fixing device under ultrasonic guidance.

In order to achieve the purpose, the invention adopts the following technical scheme: a nerve block puncture needle fixing device under ultrasonic guidance comprises a clamping device, wherein a box body is sleeved on the surface of the clamping device, the clamping device comprises two slide rods, two ends of each slide rod are fixedly connected with the upper wall and the lower wall inside the box body respectively, slide blocks are connected to the surfaces of the two slide rods in a sliding manner, a press plate is fixedly connected to one end, close to each other, of the two slide blocks, the press plate is a vertically arranged rectangular plate, the side walls of the two ends of the press plate are fixedly connected with the two slide blocks respectively, bearings are fixedly connected to the positions, close to the bottom ends, of the side walls of the two ends of the press plate, outer rings of the bearings are fixedly connected with the press plate, an adjusting block is arranged at the bottom end of the press plate, the adjusting block is of a rectangular plate structure, the side end wall of the adjusting block is fixedly connected with an inner ring of the, round grooves are formed in the ends, close to each other, of the adjusting block and the pressing plate, the two round grooves and the circle center of the bearing are collinear, the two round grooves are larger than the arc shape of a quarter circle, and the two sliding rods are provided with bends far away from the bearing relative to the position of the bearing;

the position of the side wall of the box body, which is opposite to the bearing, is provided with a needle inlet hole in a penetrating way, the needle inlet hole is of a long strip structure, the inside of the box body is provided with a limiting mechanism, the limiting mechanism comprises a mounting frame and a clamping plate, the bottom end of the mounting frame is fixedly connected with the inner bottom wall of the box body, a connecting shaft is inserted into the mounting frame, the surface of the connecting shaft is rotatably connected with the mounting frame, the surface of the upper end of the connecting shaft is fixedly connected with a claw, the port of the clamping plate is fixedly connected with the side wall of a pressing plate, the clamping plate is positioned at the upper end of the claw, one side, which is far away from the clamping plate, of the surface of the claw is fixedly connected with a pull rod, the pull rod is horizontally arranged, the position of the side wall of the box body, which is opposite to the pull rod, the slide groove is of an, the pull rod penetrates through the wall of the box body through the sliding groove;

the inside of box body is equipped with resetting means, resetting means is located the clamp plate and keeps away from one side of stop gear, resetting means includes two guide bars, two connecting block and box body diapire fixed connection are passed through to guide bar one end, and two guide bars and box body diapire parallel, two the surface sliding cover of guide bar is equipped with even board, the one end fixedly connected with extrusion piece of connecting block is kept away from to even board, the one end that even board was kept away from to the extrusion piece is equipped with circular-arc recess, the one end fixedly connected with spring that extrusion piece was kept away from to even board, the other end and the connecting block fixed connection of spring, the spring housing is on the surface of guide bar, the guide bar is the cylinder pole.

Preferably, the pressing plate and the adjusting block are both internally provided with a protection mechanism, the protection mechanism comprises a rubber cushion block, the surface of the rubber cushion block is bonded with the inside of the groove through glue, and the surface of the rubber cushion block is provided with a cylindrical protrusion.

Preferably, one surface, far away from the groove, of the cushion block is provided with a protective pad, the protective pad is bonded with the cushion block by glue, the thickness of the cross section of the protective pad is in a smooth step shape, and the two protective pads are symmetrically distributed in a horizontal line.

Preferably, a needle inlet hole is formed in the position, corresponding to the bearing, of the side wall of the box body in a penetrating mode, and the needle inlet hole is of a long strip structure.

Preferably, the surface cover of box body has adsorption equipment, adsorption equipment includes the pipe, pipe end to end intercommunication, and the pipe box is in the bottom of box body, the surface intercommunication that the pipe is close to the bottom has the sucking disc, the sucking disc is four, and four sucking discs are located the four lateral walls of box body respectively, the sucking disc is the puck, the upper end intercommunication of pipe has the check valve, the one end intercommunication that the pipe was kept away from to the check valve has the cylinder, the inside piston that is equipped with of cylinder, and the surface and the cylinder interference fit of piston to the upper end of piston is equipped with draws the post.

Compared with the prior art, the invention has the advantages and positive effects that,

1. according to the invention, the puncture needle is inserted into the sleeve, the sleeve is inserted into the box body along the needle insertion hole, the sleeve enters the groove between the adjusting block and the pressing plate through the bearing inner ring, the pressing plate is pressed downwards to slide downwards on the surface of the sliding plate by virtue of the bearing, the pressing plate is utilized to push the adjusting block to slide on the inner bottom wall of the box body, the angle between the pressing plate and the adjusting block is reduced along with the downward movement of the pressing plate, the rubber cushion block is arranged in the groove to increase the friction force between the groove and the sleeve, and the upper wall and the lower wall of the sleeve are clamped during rotation because both the grooves are larger than a quarter circle, so that the problems that the sleeve is cylindrical and the cylindrical.

2. According to the invention, the box body is pressed on the surface of a table or a ceramic tile wall, the needle cylinder is pulled, so that the needle cylinder pumps out the air in the guide pipe through the one-way valve, the air in the suction cup is sucked out by using the guide pipe, and the suction cup fixes the box body by using the air pressure difference, thereby avoiding the problem that the environment of an operation table is complicated in the experiment teaching process, and the problem that a place where a sleeve is placed on a shelf is difficult to fall is solved.

3. When the pressing plate is pressed, the adjusting block is used for pushing the extruding block, the connecting plate at one end of the extruding block extrudes the spring to move on the surface of the guide rod, the hook claw is hooked in the clamping plate along with the downward movement of the pressing plate, the pressing plate is fixed by pushing the pull rod, the pull rod is pushed to drive the hook claw to slide out of the clamping plate, so that the elastic force of the spring pushes the extruding block, the adjusting block is pushed by the extruding block, the adjusting block pushes the pressing plate to move upwards, the pressing plate is reset, and the sleeve is taken out from the inside of the needle inlet hole.

4. The invention can quickly and accurately take out and store the puncture needle, is particularly suitable for experimental teaching application scenes, and enables sleeves of different sizes to be uniformly adapted.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present invention;

FIG. 2 is a schematic view of the present invention in an initial state with the top and side walls of the case removed;

FIG. 3 is a rear view of the structure of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 at A in accordance with the present invention;

FIG. 5 is a schematic view of the present invention with the top and side walls of the cassette removed in the terminal state;

FIG. 6 is a rear view of the structure of FIG. 5 according to the present invention;

FIG. 7 is a schematic view of the structure of the adsorption apparatus according to the present invention;

FIG. 8 is a schematic view of the structure of the single take-out holding apparatus according to the present invention;

FIG. 9 is a schematic view of the structure of FIG. 8 at B in the present invention;

fig. 10 is a schematic structural view of the shielding mechanism of the present invention.

Illustration of the drawings:

1. a box body; 2. a chute; 3. a pinhole is arranged; 4. an adsorption device; 41. a conduit; 42. a suction cup; 43. a one-way valve; 44. a needle cylinder; 5. a limiting mechanism; 51. clamping a plate; 52. a hook claw; 53. a pull rod; 54. a mounting frame; 55. a connecting shaft; 6. a clamping device; 61. pressing a plate; 62. a bearing; 63. a slide bar; 64. an adjusting block; 65. a roller; 66. a protection mechanism; 661. cushion blocks; 662. a protective pad; 7. a resetting device; 71. a guide bar; 72. connecting plates; 73. a spring; 74. and extruding the block.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

The first embodiment is as follows:

as shown in fig. 1 to 10, an embodiment of the present invention provides an ultrasound-guided nerve block puncture needle fixing device, which includes a clamping device 6, a box body 1 is sleeved on a surface of the clamping device 6, the clamping device 6 includes two sliding rods 63, two ends of each sliding rod 63 are fixedly connected to upper and lower walls inside the box body 1, a sliding block is slidably connected to a surface of each sliding rod 63, a pressing plate 61 is fixedly connected to one end of each sliding block, which is close to each other, the pressing plate 61 is a vertically arranged rectangular plate, side walls of two ends of the pressing plate 61 are fixedly connected to the two sliding blocks, bearings 62 are fixedly connected to positions of the side walls of two ends of the pressing plate 61, which are close to a bottom end, an outer ring of each bearing 62 is fixedly connected to the pressing plate 61, an adjusting block 64 is arranged at a bottom end of the pressing plate 61, the adjusting block 64 is a rectangular plate-shaped structure, the adjusting block 64 is rotatably connected with the pressing plate 61 through a bearing 62, one end, far away from the pressing plate 61, of the adjusting block 64 is in rolling connection with a roller 65, one ends, close to each other, of the adjusting block 64 and the pressing plate 61 are both provided with circular grooves, the circle centers of the two circular grooves and the bearing 62 are collinear, the two circular grooves are both larger than the arc shape of a quarter circle, and the positions, relative to the bearing 62, of the two sliding rods 63 are both provided with bends far away from the bearing 62;

the side wall of the box body 1 is provided with a needle inlet hole 3 through the position corresponding to the bearing 62, the needle inlet hole 3 is of a long strip structure, the inside of the box body 1 is provided with a limiting mechanism 5, the limiting mechanism 5 comprises a mounting frame 54 and a clamping plate 51, the bottom end of the mounting frame 54 is fixedly connected with the bottom wall of the box body 1, a connecting shaft 55 is inserted in the mounting frame 54, the surface of the connecting shaft 55 is rotatably connected with the mounting frame 54, the surface of the upper end of the connecting shaft 55 is fixedly connected with a hook 52, the port of the clamping plate 51 is fixedly connected with the side wall of a pressing plate 61, the clamping plate 51 is positioned at the upper end of the hook 52, one side of the surface of the hook 52, which is far away from the clamping plate 51, is fixedly connected with a pull rod 53, the pull rod 53 is horizontally arranged, the side wall of the box body 1 is provided with a sliding groove 2 corresponding to the position of the, the other arm of the sliding chute 2 is in an arc-shaped structure, the circle center of the arc is positioned on the central line of the connecting shaft 55, and the pull rod 53 penetrates through the wall of the box body 1 through the sliding chute 2;

the inside of box body 1 is equipped with resetting means 7, resetting means 7 is located one side that stop gear 5 was kept away from to clamp plate 61, resetting means 7 includes two guide bars 71, two connecting block and 1 diapire fixed connection of box body are passed through to guide bar 71 one end, and two

guide bars

71 and 1 diapire parallel in the box body, two the surface slip cover of guide bar 71 is equipped with even board 72, even one end fixedly connected with extrusion block 74 that the connecting block was kept away from to board 72, the one end that even board 72 was kept away from to extrusion block 74 is equipped with circular-arc recess, even one end fixedly connected with spring 73 that extrusion block 74 was kept away from to board 72, the other end and the connecting block fixed connection of spring 73, the surface at guide bar 71 is overlapped to spring 73, guide bar 71 is the cylinder pole

The protection mechanisms 66 are arranged inside grooves on the surfaces of the pressing plate 61 and the adjusting block 64, each protection mechanism 66 comprises a rubber cushion block 661, the surface of each rubber cushion block 661 is bonded with the inside of each groove through glue, cylindrical protrusions are arranged on the surface of each rubber cushion block 661, an adjusting block 64 is arranged at the bottom end of the pressing plate 61, each adjusting block 64 is of a rectangular plate-shaped structure, the side end wall of each adjusting block 64 is fixedly connected with the inner ring of the bearing 62, the adjusting blocks 64 are rotatably connected with the pressing plate 61 through the bearings 62, one ends, far away from the pressing plate 61, of the adjusting blocks 64 are connected with the rollers 65 in a rolling mode, circular grooves are formed in the ends, close to each other, of the adjusting blocks 64 and the pressing plate 61, the two circular grooves and the circle centers of the bearings 62 are collinear, the two circular grooves are larger than a quarter circle, the two circular grooves can better clamp a sleeve between the two circular grooves when rotating around the bearing 62 due to, utilize regulating block 64 to promote extrusion block 74, make the even board 72 of extrusion block 74 one end extrude the spring 73 motion on the surface of guide bar 71, make the hook 52 hook inside cardboard 51 along with pressing plate 61 downstream, through promoting pull rod 53, thereby fix pressing plate 61, it drives hook 52 roll-off cardboard 51 to promote pull rod 53, thereby make the elasticity of spring 73 promote extrusion block 74, thereby promote regulating block 64 with the help of extrusion block 74, make regulating block 64 promote pressing plate 61 upward movement, thereby make pressing plate 61 reset, thereby take out the sleeve from advancing the needle hole 3 inside.

Wherein the clamping device 6 inserts the puncture needle into the sleeve, inserts the sleeve into the box body 1 along the needle inlet 3, the sleeve enters the circular groove between the adjusting block 64 and the pressure plate 61 through the inner ring of the bearing 62, the pressing plate 61 is pressed downwards to enable the pressing plate 61 to slide downwards on the surface of the sliding plate through the bearing 62, the pressing plate 61 is used for pushing the adjusting block 64 to slide on the inner bottom wall of the box body 1, the angle between the pressing plate 61 and the adjusting block 64 is reduced along with the downward movement of the pressing plate 61, the rubber cushion block 661 is arranged inside the circular groove to increase the friction force between the circular groove and the sleeve, because the two circular grooves are both arc-shaped and larger than a quarter circle and the rubber cushion block 661 has certain elasticity, the upper wall and the lower wall of the sleeve are clamped when the sleeve rotates, so that the problem that the sleeve is cylindrical and the cylindrical sleeve is easy to roll off is avoided, and the sleeve fixing and retracting device is suitable for the fixed retraction of sleeves with different sizes.

Preferably, replace the cylindrical protrusion on cushion 661 surface through protection pad 662, the one side that the recess was kept away from to cushion 661 is equipped with protection pad 662, protection pad 662 and cushion 661 bond through glue before, protection pad 662 cross-sectional thickness is slick and sly echelonment, and two protection pads 662 distribute with horizontal line symmetry, two protection pads 662 through the echelonment increase gradually in angle between two protection pads 662 peak when rotating round bearing 62 to the sleeve that will insert between two protection pads 662 is cliied, more has the effect of carrying on the clip to not unidimensional sleeve.

Example two:

as shown in fig. 1 and 7, according to the first embodiment of the present invention, on the basis of the first embodiment, the adsorption device 4 is sleeved on the surface of the box body 1, the adsorption device 4 includes the guide tubes 41, the guide tubes 41 are communicated end to end, the guide tubes 41 are sleeved on the bottom end of the box body 1, the surface of the guide tubes 41 close to the bottom end is communicated with the suction cups 42, the four suction cups 42 are respectively located on the four side walls of the box body 1, the suction cups 42 are rubber discs, the upper end of the guide tubes 41 is communicated with the check valve 43, one end of the check valve 43 far from the guide tubes 41 is communicated with the syringe 44, the syringe 44 is internally provided with the piston, the surface of the piston is in interference fit with the syringe 44.

The adsorption device 4 has the functions of pressing the box body 1 on a table surface or a ceramic tile wall, pulling the needle cylinder 44 to enable the needle cylinder 44 to suck out air in the guide pipe 41 through the one-way valve 43, enabling the one-way valve 43 to have the one-way conduction function to avoid air backflow, sucking air in the suction cup 42 through the guide pipe 41, enabling the rubber suction cup 42 to be in good contact with the surface of a smooth object, and enabling the suction cup 42 to temporarily fix the box body 1 through air pressure difference.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a nerve block pjncture needle fixing device under ultrasonic guidance, includes clamping device (6), its characterized in that: the surface sleeve of clamping device (6) has box body (1), clamping device (6) includes two slide bars (63), the both ends of slide bar (63) respectively with box body (1) inside two upper and lower wall fixed connection, the equal sliding connection in surface of two slide bars (63) has the slider, and one end fixed connection that two sliders are close to each other has clamp plate (61), clamp plate (61) is the rectangular plate of vertical setting, and the both ends lateral wall of clamp plate (61) respectively with two slider fixed connection, the both ends lateral wall of clamp plate (61) is close to the position of bottom and all fixed connection has bearing (62), the outer loop and clamp plate (61) fixed connection of bearing (62), the bottom of clamp plate (61) is equipped with regulating block (64), regulating block (64) are the rectangular plate structure, the side end wall and the bearing (62) (62) inner ring fixed connection of regulating block (64), the adjusting block (64) is rotatably connected with the pressing plate (61) through a bearing (62), one end, far away from the pressing plate (61), of the adjusting block (64) is connected with a roller (65) in a rolling mode, round grooves are formed in one ends, close to each other, of the adjusting block (64) and the pressing plate (61), the circle centers of the two round grooves and the bearing (62) are collinear, the two round grooves are arc-shaped, larger than a quarter of a circle, and the positions, corresponding to the bearing (62), of the two sliding rods (63) are provided with bends far away from the bearing (62);

the utility model discloses a bearing box, including box body (1), bearing (62), inlet pin hole (3) are long structure, the inside of box body (1) is equipped with stop gear (5), stop gear (5) include mounting bracket (54) and cardboard (51), the bottom of mounting bracket (54) and bottom wall fixed connection in box body (1), the inside of mounting bracket (54) is inserted and is equipped with even axle (55), the surface of even axle (55) and mounting bracket (54) rotate to be connected, the upper end fixed surface of even axle (55) is connected with claw (52), the port and the clamp plate (61) lateral wall fixed connection of cardboard (51), cardboard (51) are located the upper end of claw (52), one side fixed connection that cardboard (51) were kept away from on claw (52) surface has pull rod (53), pull rod (53) level setting, the side wall of the box body (1) is provided with a sliding groove (2) relative to the position of the pull rod (53), the sliding groove (2) is of an L-shaped structure, and one arm of the L-shaped sliding groove (2) is vertically arranged. The other arm of the sliding chute (2) is of an arc-shaped structure, the circle center of an arc is positioned on the central line of the connecting shaft (55), and the pull rod (53) penetrates through the wall of the box body (1) through the sliding chute (2);

the inside of box body (1) is equipped with resetting means (7), resetting means (7) are located clamp plate (61) and keep away from one side of stop gear (5), resetting means (7) include two guide bars (71), two guide bar (71) one end is through connecting block and box body (1) diapire fixed connection, and two guide bars (71) and box body (1) bottom wall are parallel, two the surface slip cover of guide bar (71) is equipped with even board (72), the one end fixedly connected with extrusion block (74) of connecting block is kept away from to even board (72), the one end that even board (72) were kept away from to extrusion block (74) is equipped with circular-arc recess, the one end fixedly connected with spring (7) of extrusion block (74) is kept away from to even board (72), the other end and the connecting block fixed connection of spring (73), spring (73) cover is on the surface of guide bar (71), the guide rod (71) is a cylindrical rod.

2. The ultrasound-guided nerve block puncture needle fixture of claim 1, wherein: the utility model discloses a rubber cushion block, including clamp plate (61) and regulating block (64), the inside protection machanism (66) that all is equipped with of surperficial recess of clamp plate (61) and regulating block (64), protection machanism (66) include rubber cushion (661), the surface of rubber cushion (661) is through glue and the inside bonding of recess, the surface of rubber cushion (661) is equipped with cylindric arch.

3. The ultrasound-guided nerve block puncture needle fixture of claim 2, wherein: one side that recess was kept away from in cushion (661) is equipped with protection pad (662), bond through glue between protection pad (662) and cushion (661), protection pad (662) cross-sectional thickness is slick and sly echelonment, and two protection pads (662) distribute with horizontal line symmetry.

4. The ultrasound-guided nerve block puncture needle fixture of claim 1, wherein: the surface cover of box body (1) has adsorption equipment (4), adsorption equipment (4) include pipe (41), pipe (41) end to end intercommunication, and pipe (41) cover is in the bottom of box body (1), the surface intercommunication that pipe (41) are close to the bottom has sucking disc (42), sucking disc (42) are four, and four sucking disc (42) are located the four lateral walls of box body (1) respectively, sucking disc (42) are the rubber disc, the upper end intercommunication of pipe (41) has check valve (43), the one end intercommunication that pipe (41) were kept away from in check valve (43) has cylinder (44), cylinder (44) inside is equipped with the piston, and the surface and cylinder (44) interference fit of piston to the upper end of piston is equipped with draws the post.