CN110742678A

CN110742678A - Marrow groove puncture extraction device for blood internal medicine

Info

Publication number: CN110742678A
Application number: CN201911049871.1A
Authority: CN
Inventors: 许伟
Original assignee: Zhengzhou Yihe Hospital
Current assignee: Zhengzhou Yihe Hospital
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-02-04

Abstract

A marrow groove puncture extraction device for a blood internal medicine is characterized in that a small box body is arranged at the right end of a large box body, and a positioning structure capable of positioning the small box body is arranged in the large box body; the lower end of the small box body is provided with a right-angle plate, and a rotating structure capable of enabling the right-angle plate to swing back and forth and rotate left and right is arranged in the small box body; the needle feeding box is fixedly connected to the surface of the upper end of the right-angle plate, a clamping structure is mounted at the upper end inside the needle feeding box, and a lifting structure capable of enabling the clamping structure to move up and down is mounted at the lower end of the clamping structure; the upper end of the inner part of the large box body is provided with a needle taking button capable of moving up and down, the rear end of the needle taking button is provided with two arc-shaped rods capable of synchronously moving along the directions of the two arc-shaped rods, when the needle taking button moves downwards, a structure that the arc-shaped rods can be sequentially turned over, moved downwards and opened is formed, and when the needle taking button moves upwards, a structure that the arc-shaped rods can be sequentially clamped, moved upwards and turned is formed; the needle has the functions of quick positioning and quick needle taking, and saves a large amount of time.

Description

Marrow groove puncture extraction device for blood internal medicine

Technical Field

The invention relates to the field of medical equipment, in particular to a marrow groove puncture and extraction device for a blood internal medicine.

Background

The diagnosis of the bone marrow puncture is indispensable for leukemia patients, when the bone marrow puncture is carried out, the posterior superior iliac spine or the anterior superior iliac spine of the pelvis is often selected, the bony sign of the part is clear, and no great vessels or nerve trunk are arranged around the part, so the safety is good, if the materials obtained by multiple times of puncture are not satisfactory, and in few cases, the sternum puncture can be selected, and only the oblique needle (the 30-45-degree needle with the sternum) is needed to be performed. The most frequently encountered problem of bone marrow puncture is 'unsatisfactory material selection', the most reason is that the puncture needle does not really enter a bone marrow cavity, and the extracted content is actually blood in blood vessels of nearby tissues; therefore, the biggest problems of the current bone marrow aspiration are: the puncture positioning is slow, the puncture positioning is inaccurate, the puncture needle inserting angle and the puncture depth are not easy to be controlled, the puncture extraction is operated by depending on experience, and the puncture needle and some medical instruments thereof need to be prepared in advance in the process of the puncture.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a marrow groove puncture extraction device for a blood internal medicine, which can perform quick coarse positioning and fine positioning after the coarse positioning, can adjust and fix the puncture needle inserting angle at will, can perform manual slow adjustment on the needle inserting depth, is easy to hold the depth, can store some puncture needles and is easy to take out, and effectively solves the problems of slow puncture positioning, inaccurate puncture positioning, difficulty in controlling the puncture needle inserting angle and depth and the like.

In order to solve the problems, the invention adopts the technical scheme that:

a marrow groove puncture and extraction device for a blood internal medicine comprises a large box body, wherein a small box body is arranged at the right end of the large box body, and a positioning structure capable of positioning the small box body is arranged in the large box body; the lower end of the small box body is provided with a needle feeding box, and a rotating structure which can enable the needle feeding box to swing back and forth and rotate left and right is arranged in the small box body; the upper end in the needle feeding box is provided with a clamping structure, and the lower end of the clamping structure is provided with a lifting structure capable of enabling the clamping structure to move up and down;

the needle button of getting that can reciprocate is installed to big box inside upper end, gets needle button rear end and installs two arc poles that can follow opposite direction synchronous movement each other, works as it can overturn in proper order, move down, open structure to constitute the arc pole when moving down to get needle button constitute the arc pole when moving up to press from both sides tightly in proper order, shift up, the structure of upset, it installs the groove of belt cylinder that can carry out the pivoted when getting needle button and moving down to get needle button lower extreme rear side.

Preferably, the positioning structure comprises a driving straight gear, the front end of the driving straight gear is meshed with a gear ring, teeth are arranged on the inner side and the outer side of the gear ring, and a first straight gear, a second straight gear and a third straight gear which can rotate are meshed with the inner side of the gear ring; a first telescopic rod is fixedly connected to the center of the first straight gear, a first bevel gear is fixedly connected to the right end of the outer surface of the first telescopic rod, a second bevel gear is meshed with the upper end of the first bevel gear, a first threaded cylinder is fixedly connected to the surface of the upper end of the second bevel gear, a first threaded rod is in threaded connection with the interior of the first threaded cylinder, the first threaded cylinder is rotatably connected to the interior of the large box body, a main fixing plate is connected to the surface of the lower end of the large box body in a sliding mode, and the front end surface and the rear end surface;

a second telescopic rod is fixedly connected to the center of the second straight gear, a third bevel gear is fixedly connected to the right end of the outer surface of the second telescopic rod, a fourth bevel gear is meshed with the rear end of the third bevel gear, a second threaded cylinder is fixedly connected to the surface of the rear end of the fourth bevel gear, a second threaded rod is in threaded connection with the inner portion of the second threaded cylinder, the second threaded cylinder is rotatably connected to the inner portion of the large box body, and a fixing box is fixedly connected to the surface of the upper end of the second threaded rod;

the third straight-tooth gear center fixedly connected with third telescopic link, third telescopic link surface right-hand member fixedly connected with fifth bevel gear, the meshing of fifth bevel gear upper end has sixth bevel gear, the first telescopic cylinder of fixedly connected with of sixth bevel gear center department, first telescopic cylinder runs through big box upper end surface and fixed box lower extreme surface, first telescopic cylinder surface upper end fixedly connected with seventh bevel gear, seventh bevel gear upper end meshing has eighth bevel gear, eighth bevel gear left end fixed surface is connected with the third threaded cylinder, third threaded cylinder internal thread is connected with the third threaded rod, the third threaded cylinder rotates to be connected at fixed incasement wall, fixed case right-hand member fixed surface is connected with the second telescopic cylinder, third threaded rod right-hand member fixed surface is connected at second telescopic cylinder right-hand member inner wall, second telescopic cylinder right-hand member fixed surface is connected at little box left end surface.

Preferably, a first rotating shaft is fixedly connected to the center of the first incomplete gear, a second bevel gear is fixedly connected to the upper end of the outer surface of the first rotating shaft, a first bevel gear is meshed to the upper end of the second bevel gear, and a main shaft is fixedly connected to the center of the first bevel gear.

Preferably, the surfaces of the left ends of the first telescopic rod, the second telescopic rod and the third telescopic rod are respectively and rotatably connected with a cylindrical barrel, the bottom end of the cylindrical barrel is respectively and fixedly connected with a coil spring, the inner side of the coil spring is respectively and fixedly connected with a first cylindrical rod, the outer side of the coil spring is respectively and fixedly connected with the inner wall of the bottom end of the cylindrical barrel, the outer surface of the first cylindrical rod is respectively and rotatably connected with the inner wall of the cylindrical barrel, the left end of the first cylindrical rod is respectively and fixedly connected with an incomplete round handle, the left end of the incomplete round handle is respectively and fixedly connected with an adjusting button, a cylindrical through hole is formed in the surface of the left end of the big box body, a big cylindrical groove is formed in the right end of the cylindrical through hole, two adjacent deep rectangular grooves and shallow rectangular grooves are formed in the inner wall of the big cylindrical groove, a key-shaped clamping block.

Preferably, the rotating structure comprises a fine positioning handle, a fourth straight gear is coaxially and fixedly connected to the left end of the fine positioning handle, a first worm is coaxially and fixedly connected to the left end of the fourth straight gear, a first worm wheel is meshed with the front end of the first worm, a first rotating shaft is fixedly connected to the center of the first worm wheel, a ninth bevel gear is fixedly connected to the lower end of the outer surface of the first rotating shaft, and a tenth bevel gear is meshed with the lower side of the left end of the ninth bevel gear;

the front end of the fourth straight gear is meshed with a movable fifth straight gear, the lower side of the front end of the fifth straight gear is meshed with a sixth straight gear, the left end of the sixth straight gear is coaxially and fixedly connected with a second worm, the rear end of the second worm is meshed with a second worm gear, the lower end of the second worm gear is fixedly connected with a Y-shaped rotating shaft, the lower end of the Y-shaped rotating shaft is rotatably connected with a second rotating shaft, the second rotating shaft is coaxially and fixedly connected with a tenth bevel gear, and the middle part of the outer surface of the second rotating shaft is fixedly connected with a rectangular plate.

Preferably, press from both sides tight structure and include the upper ring plate, the lower end surface of upper ring plate rotates and is connected with lower crown plate, and the annular groove has been seted up to lower crown plate inside, and the surface of annular groove bottom articulates there is the even first connecting rod of three distribution, and the even first connecting rod inboard of three distribution all articulates there is the arc splint, and the arc splint outside all articulates there is the second connecting rod, and the second connecting rod other end all articulates at upper ring plate lower extreme surface.

Preferably, elevation structure include with lower crown plate fixed connection's four corners ring, the equal fixedly connected with fourth screw thread section of thick bamboo of every angle department of four corners ring, the inside equal threaded connection of fourth screw thread section of thick bamboo has little screw thread pole, and the equal coaxial rigid coupling of little screw thread pole lower extreme has first bevel pinion, and the inboard equal meshing of first bevel pinion has second bevel pinion, and the coaxial rigid coupling of second bevel pinion right-hand member has the handle of inserting the needle.

Preferably, the front end of the arc-shaped rod is hinged with a large U-shaped plate, the surface of the front end of the large U-shaped plate is fixedly connected with a third rotating shaft, the rear end of the outer surface of the third rotating shaft is fixedly connected with a second small straight gear, and the left side of the second small straight gear is meshed with a second straight rack;

two cylindrical grooves are formed in the surfaces of the left end and the right end of the large U-shaped plate, a fifth spring is fixedly connected to the bottom end of each cylindrical groove, a third cylindrical rod is fixedly connected to the outer side of each fifth spring, the third cylindrical rods are slidably connected to the inner wall of each cylindrical groove, a small U-shaped plate is fixedly connected to the outer side surface of each third cylindrical rod, a fourth connecting rod is hinged to the rear end of each small U-shaped plate, and the other end of each fourth connecting rod is hinged to the outer surfaces of the two arc-shaped rods; the surfaces of the upper end and the lower end of each of the two small U-shaped plates are hinged with third connecting rods, the inner sides of the two third connecting rods which are symmetrical left and right are hinged with a cylindrical ring, the inner walls of the cylindrical rings are connected with guide rods in a sliding manner, and the inner ends of the two guide rods are fixedly connected with the upper end surface and the lower end surface of the large U-shaped plate;

the outer surface of the third rotating shaft is rotatably connected to the right side of the lower end of the needle taking button, the surface of the right side of the lower end of the needle taking button is fixedly connected with a first small telescopic rod, the surface of the lower end of the first small telescopic rod is fixedly connected with a supporting plate, the surface of the rear end of the supporting plate is fixedly connected with a right-angle baffle, and the right end of the right-angle baffle is hinged with a;

an inclined plane is formed in the lower side of the left end of the needle taking button, a first straight rack is connected to the lower end of the inclined plane in a sliding mode, a first small straight gear is meshed to the upper end of the first straight rack, a fourth spring is fixedly connected to the surface of the rear end of the first straight rack, and the right end of the first small straight gear is coaxially and fixedly connected with a cylinder with a groove.

The invention has novel structure, ingenious conception and simple and convenient operation, and compared with the prior art, the invention has the following advantages:

1. the coarse positioning structure can move in three directions simultaneously, so that the effect of quick positioning is achieved, and when the position in a certain direction reaches a preset position, the coarse positioning structure can stop moving in a certain direction through the adjusting button.

2. The invention can carry out accurate positioning, can carry out 360-degree left-right dead angle-free rotation and 180-degree front-back overturning, and has comprehensive covering direction.

3. The invention is provided with the clamping structure, the puncture needle can be controlled very firmly through the clamping structure without swinging, and the needle insertion or needle withdrawal can be controlled through the lifting structure after the fixation.

4. The needle taking device is provided with a convenient needle taking function, the stored puncture needle is placed in the inclined plane placing groove, and the puncture needle can be vertically turned over by pressing the needle taking button, so that the puncture needle is convenient to take out.

Drawings

Fig. 1 is an overall external view of a bone marrow groove puncturing and extracting device for hematology department according to the present invention.

Fig. 2 is an overall internal schematic view of a bone marrow groove puncturing and extracting device for hematology department according to the present invention.

Fig. 3 is a schematic diagram of a rapid positioning structure of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

Fig. 4 is a partial schematic view of a quick positioning structure of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

FIG. 5 is a sectional view of the first telescopic rod of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

FIG. 6 is a schematic diagram of a structure for controlling rapid positioning of a bone marrow groove puncturing and extracting device for hematology department according to the present invention.

FIG. 7 is an enlarged view of the structure for controlling the rapid positioning of the bone marrow groove puncturing and extracting device for hematology department according to the present invention.

Fig. 8 is a schematic view of a rotary structure of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

Fig. 9 is a partial schematic view of a rotary structure of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

FIG. 10 is a sectional view of a small casing of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

FIG. 11 is a drawing showing the installation of a pulling plate of the bone marrow groove puncturing and extracting device for hematology department according to the present invention.

FIG. 12 is a sectional view of a needle insertion box of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

Fig. 13 is a schematic view of the lifting structure of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

Fig. 14 is an external view of a clamping structure of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

FIG. 15 is an internal view of a clamping structure of the bone marrow groove puncturing and extracting device for hematology department of the present invention.

FIG. 16 is a schematic view of a needle-removing structure of the bone marrow groove puncturing and extracting device for hematology department according to the present invention.

FIG. 17 is a partial schematic view of a needle-removing structure of the bone marrow groove puncturing and extracting device for hematology department according to the present invention.

FIG. 18 is a partial cross-sectional view of a needle-removing structure of a bone marrow groove puncturing and extracting device for hematology department in accordance with the present invention.

FIG. 19 is a schematic view showing the installation of the needle-removing structure of the bone marrow groove puncturing and extracting device for hematology department in accordance with the present invention.

FIG. 20 is an enlarged view of the needle-removing structure of the bone marrow groove puncturing and extracting device for hematology department according to the present invention.

FIG. 21 is a partial view showing the needle-removing structure of the bone marrow groove puncturing and extracting device for hematology department according to the present invention.

FIG. 22 is an enlarged view of a portion of the needle extracting structure of the bone marrow groove puncturing and extracting device for hematology department according to the present invention.

Reference numbers in the figures: 1-large box body, 2-second threaded rod, 3-third threaded rod, 4-fixed box, 5-small box body, 6-coarse positioning handle, 7-main fixed plate, 8-driving spur gear, 9-gear ring, 10-disc, 11-first threaded rod, 12-first straight gear, 13-second straight gear, 14-third straight gear, 15-first telescopic rod, 16-second telescopic rod, 17-third telescopic rod, 18-first bevel gear, 19-second bevel gear, 20-first threaded barrel, 21-third bevel gear, 22-fourth bevel gear, 23-second threaded barrel, 24-fifth bevel gear, 25-sixth bevel gear, 26-seventh bevel gear, 27-first telescopic barrel, 28-eighth bevel gear, 29-third threaded barrel, 30-adjusting button, 31-incomplete round handle, 32-first cylindrical rod, 33-coil spring, 34-cylindrical barrel, 35-first tension spring, 36-key-shaped fixture block, 37-fixture strip, 38-fourth straight gear, 39-first worm, 40-first worm gear, 41-fifth straight gear, 42-sixth straight gear, 43-second worm, 44-second worm gear, 45-first rotating shaft, 46-Y-shaped rotating shaft, 47-ninth bevel gear, 48-tenth bevel gear, 49-second rotating shaft, 50-right-angle plate, 51-pulling plate, 52-needle feeding box, 53-upper ring plate, 54-pulling ring, 55-fourth threaded barrel, 56-first small bevel gear, 56-second small bevel gear, and the like, 57-second small bevel gear, 58-needle insertion handle, 59-belt wheel, 60-pull belt, 61-second spring, 62-hexagonal ring, 63-second cylindrical rod, 64-lower ring plate, 65-arc clamping plate, 66-second connecting rod, 67-third spring, 68-first connecting rod, 69-square cover plate, 70-grooved cylinder, 71-needle taking button, 72-fourth spring, 73-first straight rack, 74-first small straight gear, 76-arc rod, 77-seventh spring, 78-third rotating shaft, 79-second small straight gear, 80-second straight rack, 81-first small telescopic rod, 82-supporting plate, 83-right-angle turning plate, 84-small U-shaped plate, 85-third connecting rod, 86-fourth connecting rod, 87-cylindrical ring, 88-right-angle baffle, 89-third cylindrical rod, 90-guide rod, 91-fifth spring, 92-sixth spring, 93-fine positioning handle, 95-small threaded rod, 96-square ring, 97-eighth spring, 98-second telescopic cylinder and 99-large U-shaped plate.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-22, the present invention provides a bone marrow groove puncturing and extracting device for blood medicine, which comprises a large box body 1, wherein a small box body 5 is installed at the right end of the large box body 1, and a positioning structure capable of positioning the small box body 5 is installed in the large box body 1; the lower end of the small box body 5 is provided with a needle feeding box 52, and a rotating structure which can lead the needle feeding box 52 to swing back and forth and rotate left and right is arranged in the small box body 5; the upper end in the needle feeding box 52 is provided with a clamping structure, and the lower end of the clamping structure is provided with a lifting structure which can enable the clamping structure to move up and down;

the needle button 71 of getting that can reciprocate is installed to the inside upper end of big box 1, gets needle button 71 rear end and installs two arc poles 76 that can follow opposite direction synchronous motion each other, works as it can overturn in proper order, move down, open structure to constitute arc pole 76 when needle button 71 moves down, works as it can press from both sides tightly in proper order, moves up, the structure of upset to constitute arc pole 76 when needle button 71 moves up, it can carry out pivoted trough of belt cylinder 70 when getting needle button 71 to move down to get needle button 71 lower extreme rear side installation.

The lower end surface of the large box body 1 is connected with a main fixing plate 7 in a sliding mode, the upper end surface of the main fixing plate 7 is provided with a sliding groove, the lower end surface of the large box body 1 is fixedly connected with a sliding block, and the sliding block slides in the sliding groove; the main fixing plate 7 is a supporting core of the whole device, the small box body 5 can be quickly positioned by the positioning structure arranged in the large box body 1, the needle inserting box 52 can simultaneously move in three directions by the positioning structure, the quick positioning effect is achieved, and the positioning structure is independently controlled in each moving direction respectively, so that the use and the quick positioning are convenient; the rotating structure in the small box body 5 can lead the needle inserting box to swing 180 degrees forwards and backwards at 52 degrees and rotate at 360 degrees without dead angles, and when the needle inserting box is used, the surface of the lower end of the right-angle plate 50 is contacted with the part of the body of a patient to be pricked; the needle feeding box 52 is internally provided with a clamping structure for clamping the needle tube to fix the needle tube, and the lifting structure is used for controlling the lifting structure to enable the needle tube to enter the body when the clamping structure clamps the needle tube; an inclined plane placing groove is formed in the large box body 1 at the rear end of the needle taking button 71, when a puncture needle is placed in the inclined plane placing groove, the puncture needle can slide down into the grooved column 70 due to gravity, the arc-shaped rods 76 can descend by pressing the needle taking button 71, the arc-shaped rods 76 in the descending process can be overturned by 90 degrees due to the internal structure, the two arc-shaped rods 76 can be opened when the puncture needle descends to the bottom end, and the grooved column 70 can be overturned forwards; the needle taking button 71 is released again, and the puncture needle can be taken out vertically upwards; the operation is simple and the storage is easy.

The positioning structure comprises a driving straight gear 8, the front end of the driving straight gear 8 is meshed with a gear ring 9, teeth are arranged on the inner side and the outer side of the gear ring 9, and a first straight gear 12, a second straight gear 13 and a third straight gear 14 which can rotate are meshed with the inner side of the gear ring 9; a first telescopic rod 15 is fixedly connected to the center of the first straight gear 12, a first bevel gear 18 is fixedly connected to the right end of the outer surface of the first telescopic rod 15, a second bevel gear 19 is meshed with the upper end of the first bevel gear 18, a first threaded cylinder 20 is fixedly connected to the upper end of the second bevel gear 19, a first threaded rod 11 is in threaded connection with the inner portion of the first threaded cylinder 20, the first threaded cylinder 20 is rotatably connected to the inner portion of the large box body 1, a main fixing plate 7 is in sliding connection with the surface of the lower end of the large box body 1, and the surfaces of the front end and the rear end of the first threaded rod 11;

a second telescopic rod 16 is fixedly connected to the center of the second straight gear 13, a third bevel gear 21 is fixedly connected to the right end of the outer surface of the second telescopic rod 16, a fourth bevel gear 22 is meshed with the rear end of the third bevel gear 21, a second threaded cylinder 23 is fixedly connected to the surface of the rear end of the fourth bevel gear 22, a second threaded rod 2 is in threaded connection with the inside of the second threaded cylinder 23, the second threaded cylinder 23 is rotatably connected to the inside of the large box body 1, and a fixed box 4 is fixedly connected to the surface of the upper end of the second threaded rod 2;

a third telescopic rod 17 is fixedly connected at the center of the third straight gear 14, a fifth bevel gear 24 is fixedly connected at the right end of the outer surface of the third telescopic rod 17, a sixth bevel gear 25 is meshed at the upper end of the fifth bevel gear 24, a first telescopic cylinder 27 is fixedly connected at the center of the sixth bevel gear 25, the first telescopic cylinder 27 penetrates through the upper end surface of the large box body 1 and the lower end surface of the fixed box 4, a seventh bevel gear 26 is fixedly connected at the upper end of the outer surface of the first telescopic cylinder 27, an eighth bevel gear 28 is meshed at the upper end of the seventh bevel gear 26, a third threaded cylinder 29 is fixedly connected at the left end surface of the eighth bevel gear 28, a third threaded cylinder 3 is in threaded connection inside the third threaded cylinder 29, the third threaded cylinder 29 is rotatably connected to the inner wall of the fixed box 4, a second telescopic cylinder 98 is fixedly connected at the right end surface of the fixed box 4, and, the right end surface of the second telescopic cylinder 98 is fixedly connected to the left end surface of the small box 5.

The first telescopic rod 15, the second telescopic rod 16 and the third telescopic rod 17 are internally provided with eighth springs 97 respectively, the outer surfaces of the first telescopic rod 15, the second telescopic rod 16 and the third telescopic rod 17 are provided with bearing seats respectively, the first telescopic rod 15, the second telescopic rod 16 and the third telescopic rod 17 are rotatably connected with the bearing seats respectively, and the bearing seats are fixedly connected with the inner wall of the large box body 1; the first telescopic rod 15, the second telescopic rod 16 and the third telescopic rod 17 are connected through splines, can stretch left and right and can rotate; the surface of the left end of the gear ring 9 is rotatably connected with a disc 10, the disc 10 is fixedly connected to the inner wall of the large box body 1, a first telescopic rod 15, a second telescopic rod 16 and a third telescopic rod 17 respectively penetrate through the disc 10 and are in sliding connection with the disc 10, and the rotation of the first telescopic rod 15, the second telescopic rod 16 and the third telescopic rod 17 is not influenced; the first threaded rod 11 penetrates through the large box body 1 and is fixedly connected to the surface of the lower end of the fixed box 4, the second threaded rod 2 is fixedly connected to the upper side of the right end of the main fixed plate 7, the third threaded rod 3 is fixedly connected to the bottom end of the inner wall of the second telescopic cylinder 98, the second telescopic cylinder 98 can be stretched left and right, the second telescopic cylinder 98 is composed of an inner cylinder and an outer cylinder, and the inner cylinder and the outer cylinder of the second telescopic cylinder 98 are in splined connection so as not to rotate, so that the third threaded rod 3 is limited to not rotate; the first telescopic cylinder 27 is respectively connected with the large box body 1 and the fixed box 4 in a rotating way, the first telescopic cylinder 27 consists of an inner cylinder and an outer cylinder, the inner cylinder and the outer cylinder of the first telescopic cylinder 27 belong to spline connection and are used as rotating shafts, so that the sixth bevel gear 25 and the seventh bevel gear 26 of the first telescopic cylinder realize synchronous rotation; because the lower end surface of the fixed box 4 is respectively connected with the first telescopic cylinder 27 and the first threaded rod 11, similar to a line of two points on a plane, the fixed box 4 can only move up and down and can not rotate, and therefore, the first threaded rod 11 can only move up and down and can not rotate; the outer surfaces of the first threaded cylinder 20 and the second threaded cylinder 23 are respectively and rotatably connected with bearing seats, and the bearing seats are respectively and fixedly connected with the inner wall of the large box body 1;

the left end of the driving straight gear 8 is coaxially and fixedly connected with a coarse positioning handle 6, the centers of the coarse positioning handle 6 and the driving straight gear 8 are fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected with the inner wall 9 of the large box body 1; the first threaded rod 11 is used for realizing the up-and-down movement of the small box body 5, the second threaded rod 2 is used for realizing the up-and-down movement of the small box body 5, and the third threaded rod 3 is used for realizing the left-and-right movement of the small box body 5; when the gear ring 9 rotates, the first straight gear 12, the second straight gear 13 and the third straight gear 14 are meshed to rotate at the same time, and the small box body 5 can move in three directions at the same time through the rotation of the first straight gear 12, the second straight gear 13 and the third straight gear 14, so that the function of quick positioning is achieved;

by rotating the coarse positioning handle 6, the rotation of the coarse positioning handle 6 can drive the driving straight gear 8 to rotate, the rotation of the driving straight gear 8 can drive the gear ring 9 to rotate through meshing, the rotation of the gear ring 9 can simultaneously drive the first straight gear 12, the second straight gear 13 and the third straight gear 14 to rotate through meshing, when the first straight gear 12 rotates, the first bevel gear 18 can be driven to rotate, the rotation of the first bevel gear 18 can drive the second bevel gear 19 to rotate through meshing, the rotation of the second bevel gear 19 can drive the first threaded barrel 20 to rotate, the rotation of the first threaded barrel 20 can generate relative displacement with the first threaded rod 11, because the first threaded rod 11 cannot rotate, when the first threaded barrel 20 rotates, the first threaded barrel 20 can generate relative displacement with the first threaded rod 11, and therefore, the first threaded rod 11 can move up and down; when the second straight gear 13 rotates, the third bevel gear 21 is driven to rotate, the third bevel gear 21 rotates and drives the fourth bevel gear 22 to rotate through meshing, the fourth bevel gear 22 rotates and drives the second threaded cylinder 23 to rotate, the second threaded cylinder 23 rotates and can generate relative displacement with the second threaded rod 2, the second threaded rod 2 cannot rotate and cannot move, and when the second threaded cylinder 23 rotates, the second threaded cylinder 23 and the second threaded rod 2 can generate relative displacement, so that the large box body 1 can integrally move back and forth; when the third spur gear 14 rotates, the third spur gear 14 rotates to drive the fifth bevel gear 24, the fifth bevel gear 24 rotates to drive the sixth bevel gear 25 to rotate through meshing, the sixth bevel gear 25 rotates to drive the first telescopic cylinder 27 to rotate, the first telescopic cylinder 27 rotates to drive the seventh bevel gear 26 to rotate, the seventh bevel gear 26 rotates to drive the eighth bevel gear 28 to rotate through meshing, the eighth bevel gear 28 rotates to drive the third threaded cylinder 29 to rotate, because the third threaded rod 3 cannot rotate, when the third threaded cylinder 29 rotates, the third threaded cylinder 29 rotates to move relative to the third threaded rod 3, so the third threaded rod 3 moves left and right, when the third threaded rod 3 moves left and right, the small box 5 moves, and therefore, the rapid positioning function is achieved.

The first telescopic rod (15) is provided with a telescopic rod, the surfaces of the left ends of the second telescopic rod 16 and the third telescopic rod 17 are respectively and rotatably connected with a cylindrical barrel 34, the bottom end of the cylindrical barrel 34 is fixedly connected with a coil spring 33, the inner side of the coil spring 33 is fixedly connected with a first cylindrical rod 32, the outer side of the coil spring 33 is fixedly connected with the inner wall of the bottom end of the cylindrical barrel 34, the outer surface of the first cylindrical rod 32 is rotatably connected with the inner wall of the cylindrical barrel 34, the left end of the first cylindrical rod 32 is fixedly connected with an incomplete round handle 31, the left end of the incomplete round handle 31 is fixedly connected with an adjusting button 30, the left end of the large box body 1 is provided with a cylindrical through hole, the right end of the cylindrical through hole is provided with a large cylindrical groove, the inner wall of the large cylindrical groove is provided with two adjacent deep rectangular grooves and shallow rectangular grooves, the inner wall of the deep rectangular groove is hinged with a key-shaped clamping block 36, the left end of the key.

The key-shaped fixture block 36 will swing rightwards and not swing leftwards, because the depth of the shallow rectangular groove is different from that of the deep rectangular groove, the wall at the left end of the deep rectangular groove will block the key-shaped fixture block 36 from swinging leftwards; the right ends of the inner walls of the large cylindrical grooves are fixedly connected with clamping strips 37, the front side and the rear side of the outer surface of the cylindrical barrel 34 are provided with sliding grooves, the clamping strips 37 slide in the sliding grooves, and the clamping strips 37 are installed to prevent the cylindrical barrel 34 from rotating; the eighth spring 97 is respectively arranged in the first telescopic rod 15, the second telescopic rod 16 and the third telescopic rod 17, fan-shaped through holes are respectively arranged at the circumference of the incomplete round handle 31, when the incomplete round handle 31 moves to the right, it will swing to the right against the hinged key-shaped latch 36, when the incomplete round handle 31 moves too much rightward, it will disengage from the key-shaped latch 36, the first tension spring 35 will pull the key-shaped latch 36 back to the initial state, the eighth spring 97 is compressed when moving to the right, and when a force is no longer applied to the incomplete round bar 31, the eighth spring 97 moves the incomplete round bar 31 to the left by an elastic force, when the incomplete handle 31 contacts the key-shaped fixture block 36, the left movement is stopped, the incomplete round handle 31 is rotated to enable the fan-shaped through hole on the incomplete round handle 31 to correspond to the key-shaped fixture block 36, the incomplete round bar 31 returns to the original position and the incomplete round bar 31 is reset by the coil spring 33; by pressing the adjusting button 30, the adjusting button 30 drives the incomplete round handle 31 to move rightwards, the incomplete round handle 31 moves rightwards to drive the first cylindrical rod 32 to move rightwards, the first cylindrical rod 32 moves rightwards to drive the cylindrical barrel 34 to move rightwards, the cylindrical barrel 34 moves rightwards to drive the first telescopic rod 15, the second telescopic rod 16 or the third telescopic rod 17 to move rightwards, because the right end of the first telescopic rod 15, the second telescopic rod 16 or the third telescopic rod 17 is rotatably connected with the bearing seat and can not move, therefore, the first telescopic rod 15, the second telescopic rod 16 or the third telescopic rod 17 can be shortened, the first telescopic rod 15, the second telescopic rod 16 or the third telescopic rod 17 respectively drives the first straight gear 12, the second straight gear 13 or the third straight gear 14 to move rightwards and disengage with the gear ring 9, and when the driving straight gear 8 is rotated again, the disengaged gear cannot move; when the first telescopic rod 15, the second telescopic rod 16 or the third telescopic rod 17 is shortened, the eighth spring 97 is compressed, when the adjusting button 30 is loosened, the eighth spring 97 can enable the left end of the first telescopic rod 15, the second telescopic rod 16 or the third telescopic rod 17 to move leftwards, because the key-shaped clamping block 36 can block the incomplete round handle 31 to move leftwards, when the first straight gear 12, the second straight gear 13 or the third straight gear 14 needs to be meshed with the gear ring 9, only the adjusting handle needs to be rotated, the eighth spring 97 can push the incomplete round handle 31 to move leftwards, the first straight gear 12, the second straight gear 13 or the third straight gear 14 can be meshed with the gear ring 9, when the adjusting handle is rotated, the coil spring 33 can bear force, when the handle is loosened, the coil spring 33 can enable the incomplete round handle 31 to return to the position, and the next operation and control are facilitated.

The rotating structure comprises a fine positioning handle 93, a fourth straight gear 38 is coaxially and fixedly connected to the left end of the fine positioning handle 93, a first worm 39 is coaxially and fixedly connected to the left end of the fourth straight gear 38, a first worm wheel 40 is meshed with the front end of the first worm 39, a first rotating shaft 45 is fixedly connected to the center of the first worm wheel 40, a ninth bevel gear 47 is fixedly connected to the lower end of the outer surface of the first rotating shaft 45, and a tenth bevel gear 48 is meshed with the lower side of the left end of the ninth bevel gear 47;

the front end of the fourth straight gear 38 is engaged with a movable fifth straight gear 41, the lower side of the front end of the fifth straight gear 41 is engaged with a sixth straight gear 42, the left end of the sixth straight gear 42 is coaxially and fixedly connected with a second worm 43, the rear end of the second worm 43 is engaged with a second worm gear 44, the lower end of the second worm gear 44 is fixedly connected with a Y-shaped rotating shaft 46, the lower end of the Y-shaped rotating shaft 46 is rotatably connected with a second rotating shaft 49, the second rotating shaft 49 is coaxially and fixedly connected with a tenth bevel gear 48, and the middle part of the outer surface of the second rotating shaft 49 is fixedly connected with a right-angle plate.

A cylindrical through hole is formed in the center of the Y-shaped rotating shaft 46, and the first rotating shaft 45 is rotatably connected to the inner wall of the cylindrical through hole; a rotating shaft is fixedly connected at the center of the fifth straight gear 41, the rotating shaft is connected on the inner wall of the small box body 5 in a sliding way, the outer surface of the rotating shaft is rotatably connected with a pulling plate 51, a low clamping groove and a high clamping groove are arranged at the position of the small box body 5 corresponding to the upper end of the pulling plate 51, rectangular clamping grooves are respectively arranged at the positions of the bottom clamping groove and the high clamping groove, the upper end of the pulling plate 51 can be respectively fixed in the rectangular clamping grooves, when the pulling plate 51 is in the low slot position, it acts as an idler gear, causing the fourth spur gear 38 and the sixth spur gear 42 to rotate simultaneously, the pulling plate 51 is pulled manually, so that the pulling plate 51 moves forwards to be separated from the bottom clamping groove, at the moment, a rotating shaft rotationally connected with the lower end of the pulling plate 51 performs circular arc motion by taking the central point of the sixth straight gear 42 as the center of a circle, when the pulling plate 51 reaches the high-clamping groove position, the fifth spur gear 41 is disengaged from the fourth spur gear 38, so that the fourth spur gear 38 rotates independently and does not drive the sixth spur gear 42 to rotate; the first worm 39, the second worm 43 and the Y-shaped rotating shaft 46 are respectively and rotationally connected with the inner wall of the small box body 5; when the pulling plate 51 is placed at the high chuck position, the fine positioning handle 93 is rotated, the fine positioning handle 93 drives the fourth spur gear 38 to rotate, the fourth spur gear 38 rotates to drive the first worm 39 to rotate, the first worm 39 rotates to drive the first worm gear 40 to rotate, the first worm gear 40 rotates to drive the first rotating shaft 45 to rotate, the first rotating shaft 45 rotates to drive the ninth bevel gear 47 to rotate, the ninth bevel gear 47 rotates to drive the tenth bevel gear 48 to rotate through meshing, the tenth bevel gear 48 rotates to drive the second rotating shaft 49 to rotate, and the second rotating shaft 49 rotates to enable the right-angle plate 50 to swing forwards or backwards; when the pulling plate 51 is placed at the bottom clamping groove position, the fine positioning handle 93 drives the fourth spur gear 38 to rotate, the fourth spur gear 38 rotates to drive the first worm 39 to rotate, the first worm 39 rotates to drive the first worm gear 40 to rotate, the first worm gear 40 rotates to drive the first rotating shaft 45 to rotate, the first rotating shaft 45 rotates to drive the ninth bevel gear 47 to rotate, meanwhile, the fourth spur gear 38 rotates to drive the fifth spur gear 41 to rotate through meshing, the fifth spur gear 41 rotates to drive the sixth spur gear 42 to rotate through meshing, the sixth spur gear 42 rotates to drive the second worm 43 to rotate, the second worm 43 rotates to drive the second worm gear 44 to rotate, the second worm gear 44 rotates to drive the Y-shaped rotating shaft 46 to rotate, the Y-shaped rotating shaft 46 rotates to drive the second rotating shaft 49 to rotate, the second rotating shaft 49 rotates to drive the tenth bevel gear 48 to rotate, the first rotating shaft 45 and the Y-shaped rotating shaft 46 rotate synchronously, the ninth bevel gear 47 and the tenth bevel gear 48 will remain relatively still, so that the right angle plate 50 will rotate left and right without changing the angle of the back and forth swing, thereby achieving the purpose of accurately positioning a certain body position of the patient.

The clamping structure comprises an upper annular plate 53, the lower end surface of the upper annular plate 53 is rotatably connected with a lower annular plate 64, an annular groove is formed in the lower annular plate 64, the bottom end surface of the annular groove is hinged with three first connecting rods 68 which are uniformly distributed, the inner sides of the three first connecting rods 68 which are uniformly distributed are hinged with arc-shaped clamping plates 65, the outer sides of the arc-shaped clamping plates 65 are hinged with second connecting rods 66, and the other ends of the second connecting rods 66 are hinged with the lower end surface of the upper annular plate 53.

A rectangular groove is formed in the lower ring plate 64 between the first connecting rod 68 and the second connecting rod 66, a third spring 67 is fixedly connected to one end in the rectangular groove, and the other end of the third spring 67 is fixedly connected to the hinge joint of the second connecting rod 66 and the upper ring plate 53; a small cylindrical through hole, a large cylindrical groove and a hexagonal hole are sequentially formed in the left side of the upper end surface of the upper ring plate 53 from top to bottom, a second cylindrical rod 63 is connected to the inner wall of the small cylindrical through hole in a sliding mode, a pull ring 54 is fixedly connected to the upper end of the second cylindrical rod 63, a second spring 61 is mounted on the outer surface of the second cylindrical rod 63, the second spring 61 is mounted on the inner wall of the large cylindrical groove, a hexagonal ring 62 is fixedly connected to the lower end surface of the second cylindrical rod 63, and the hexagonal ring 62 is connected to the inner wall of the hexagonal hole in a sliding mode; the lower end surface of the hexagonal ring 62 is fixedly connected with an inclined plane cylinder, a row of inclined plane chutes arranged in a circular arc are formed in the lower ring plate 64 corresponding to the inclined plane cylinder, when the upper ring plate 53 is rotated, the inclined plane cylinder can sequentially enter the inclined plane chutes under the action of the second spring 61, and because the inclined plane chutes are inclined plane chutes, the hexagonal ring 62 has a one-way self-locking function and can only rotate in the direction of a one-way inclined plane, and the inclined plane cylinder is prevented from rotating by the hexagonal ring 62; when the puncture needle is placed in the hole of the upper ring plate 53, the upper ring plate 53 is only required to be screwed, the rotation of the upper ring plate 53 can reduce the included angle between the first connecting rod 68 and the second connecting rod 66, the third spring 67 can be compressed, the arc-shaped clamping plate 65 can move inwards, and meanwhile, the inclined plane cylinder can sequentially slide into the inclined plane chute, has a self-locking function and cannot reversely rotate; when the puncture needle needs to be taken out, the pull ring 54 is pulled upwards to separate the inclined plane cylinder from the inclined plane chute, and the upper ring plate 53 can be pushed to restore the original position through the elasticity of the third spring 67.

The elevation structure include with lower ring plate 64 fixed connection's four corners ring 96, the equal fixedly connected with fourth screw thread section of thick bamboo 55 of every angle department of four corners ring 96, the inside equal threaded connection of fourth screw thread section of thick bamboo 55 has little screw thread pole 95, and the equal coaxial rigid coupling of little screw thread pole 95 lower extreme has first little bevel gear 56, and first little bevel gear 56 inboard all meshes has second little bevel gear 57, and the coaxial rigid coupling of second little bevel gear 57 right-hand member has needle inlet handle 58.

The lower sides of the outer surfaces of the small threaded rods 95 are rotatably connected with bearing seats, the bearing seats are fixedly connected to the inner wall of the needle feeding box 52, the centers of the second small bevel gears 57 are fixedly connected with rotating shafts, the rotating shafts are rotatably connected to the inner wall of the needle feeding box 52, the left ends of the outer surfaces of the rotating shafts are fixedly connected with belt wheels 59, the two belt wheels 59 are connected with pull belts 60, the pull belts 60 and the belt wheels 59 are used for realizing synchronous rotation of the two rotating shafts, and the surface of the right end of the rotating shaft at the rear end is fixedly connected to the center 58; because the left and right pairs of second bevel gears 57 are turned in different directions, the left and right pairs of small threaded rods 95 are respectively provided with threads with the same pitch and different turning directions, so that the rectangular ring 96 moves up and down; by rotating the needle insertion handle 58, the second bevel pinion 57 rotates, the rotation of the second bevel pinion 57 drives the first bevel pinion 56 to rotate, the rotation of the first bevel pinion 56 drives the small screw rod 95 to rotate, and the rotation of the small screw rod 95 causes the fourth screw cylinder 55 to ascend or descend, so that the function of stabilizing needle insertion or needle extraction is achieved.

The front end of the arc-shaped rod 76 is hinged with a large U-shaped plate 99, the surface of the front end of the large U-shaped plate 99 is fixedly connected with a third rotating shaft 78, the rear end of the outer surface of the third rotating shaft 78 is fixedly connected with a second small straight gear 79, and the left side of the second small straight gear 79 is meshed with a second straight rack 80;

two cylindrical grooves are formed in the surfaces of the left end and the right end of the large U-shaped plate 99, a fifth spring 91 is fixedly connected to the bottom end of each cylindrical groove, a third cylindrical rod 89 is fixedly connected to the outer side of each fifth spring 91, the third cylindrical rods 89 are slidably connected to the inner wall of each cylindrical groove, a small U-shaped plate 84 is fixedly connected to the surface of the outer side of each third cylindrical rod 89, a fourth connecting rod 86 is hinged to the rear end of each small U-shaped plate 84, and the other end of each fourth connecting rod 86 is hinged to the outer surfaces of the two arc-shaped rods 76; the upper end surface and the lower end surface of each of the two small U-shaped plates 84 are hinged with a third connecting rod 85, the inner sides of the two bilaterally symmetrical third connecting rods 85 are hinged with a cylindrical ring 87, the inner walls of the cylindrical rings 87 are connected with guide rods 90 in a sliding manner, and the inner ends of the two guide rods 90 are fixedly connected to the upper end surface and the lower end surface of the large U-shaped plate 99;

the outer surface of the third rotating shaft 78 is rotatably connected to the right side of the lower end of the needle taking button 71, the surface of the right side of the lower end of the needle taking button 71 is fixedly connected with a first small telescopic rod 81, the surface of the lower end of the first small telescopic rod 81 is fixedly connected with a supporting plate 82, the surface of the rear end of the supporting plate 82 is fixedly connected with a right-angle baffle 88, and the right end of the right-angle baffle 88 is hinged with a right;

an inclined surface is formed in the lower side of the left end of the needle taking button 71, a first straight rack 73 is connected to the lower end of the inclined surface in a sliding mode, a first small straight gear 74 is meshed with the upper end of the first straight rack 73, a fourth spring 72 is fixedly connected to the surface of the rear end of the first straight rack 73, and the right end of the first small straight gear 74 is coaxially and fixedly connected with the grooved cylinder 70.

The upper end of the inclined plane placing groove is hinged with a square cover plate 69, the front end of the inclined plane placing groove is provided with a rectangular groove, an arc-shaped rod 76 is arranged in the rectangular groove and can rotate in the rectangular groove, a large rectangular groove is arranged at the position of the large box body 1 corresponding to the lower end of the needle taking button 71, and the needle taking button 71 is in sliding connection in the large rectangular groove; the second straight rack 80 is fixedly connected to the inner wall of the large rectangular groove;

a rectangular through hole is formed in the rear side of the upper end surface of the needle taking button 71, and the purpose of preventing the needle taking button 71 from colliding with the second straight rack 80 in the descending process is achieved; a rotating shaft is arranged at the centers of the first small straight gear 74 and the grooved column 70 and is rotatably connected with the inner walls of the left end and the right end of the inclined plane placing groove; the surface of the front end of the first straight rack 73 is provided with a bevel block which has the function of enabling the first straight rack 73 to move backwards when the needle taking button 71 moves downwards; a fourth spring 72 is arranged on the surface of the rear end of the first straight rack 73, and the fourth spring 72 has the function of returning the first straight rack 73 when the needle taking button 71 is loosened; a sixth spring 92 is arranged in the first small telescopic rod 81, the sixth spring 92 has the function of restoring the distance between the support plate 82 and the third rotating shaft 78 when the needle taking button 71 is loosened, and the fifth spring 91 has the function of enabling the fifth spring 91 to outwards spring the third cylindrical rod 89 when the needle taking button 71 is loosened, so that the two arc-shaped rods 76 are clamped tightly;

a key through hole is formed between the rectangular groove and the large rectangular groove, the third rotating shaft 78 is connected to the inner wall of the key through hole in a sliding mode, and the surface of the lower end of the needle taking button 71 is fixedly connected with a seventh spring 77; by pressing the needle taking button 71 downwards, the needle taking button 71 drives the third rotating shaft 78 to move downwards, the third rotating shaft 78 moves downwards to drive the arc-shaped rod 76, the third connecting rod 85, the fourth connecting rod 86, the small U-shaped plate 84, the large U-shaped plate 99, the third cylindrical rod 89, the cylindrical ring 87, the guide rod 90, the fifth spring 91 and the second small spur gear 79 to move downwards, and when the second small spur gear 79 reaches the position of the second spur rack 80, the second small spur gear 79 is meshed with the second spur rack to enable the third rotating shaft 78 to rotate 90 degrees; when the third rotating shaft 78 rotates 90 degrees, the arc-shaped rods 76 rotate 90 degrees, then the right-angle baffle plate 88 is in contact with the small U-shaped block, the small U-shaped block turns over the right-angle turning plate 83, the right-angle turning plate 83 is used for opening the two arc-shaped rods 76 when the right-angle turning plate 83 descends to the bottom end, the small U-shaped block is pressed in the right-angle baffle plate 88, the right-angle turning plate 83 prevents the small U-shaped block from shifting when being pressed under stress, the two arc-shaped rods 76 are enabled to be vertically downward when the right-angle turning plate 83 is used for ensuring that the inertia disappears when the small U-shaped block enters the right-angle baffle plate 88, when the right-angle baffle plate 88 reaches the bottom end, the needle button 71 is pressed, the third rotating shaft 78 and the large U-shaped block move downward, at the moment, the fifth spring 91 and the sixth spring 92 are compressed, the cylindrical ring 87 moves outwards, the distance between the two small U-shaped plates 84 is shortened, the first straight rack 73 moves backwards to drive the first small straight gear 74 to rotate through meshing, the first small straight gear 74 rotates to drive the grooved cylinder 70 to rotate, the grooved cylinder 70 rotates to turn out the needles in the grooves to enter the opened arc-shaped rods 76, by loosening the needle taking button 71, the seventh spring 77 can pop up the needle taking button 71, the sixth spring 92 can restore the distance between the support plate 82 and the third rotating shaft 78, the fifth spring 91 can automatically clamp the two arc-shaped rods 76, when the second small straight gear 79 returns, the second small straight rack is inverted by 90 degrees and is rotated to the original state, the fourth spring 72 can push the first straight rack 73 to move forwards, and when the first straight rack 73 moves forwards, the first small straight gear 74 and the grooved cylinder 70 are driven to invert and return to the original state; can achieve the purposes of rapid storage and rapid needle taking.

When the puncture needle is used, the small box body 5 of the puncture needle can quickly reach a designated position by rotating the coarse positioning handle 6 and can respectively move in three directions simultaneously, when the small box body 5 moves to the designated position, the fine positioning handle 93 is rotated to enable the hole of the right-angle plate 50 to be aligned with the position of a patient needing to put a puncture needle, the puncture needle is taken out by pressing the puncture needle button 71, then the puncture needle is fixed by the clamping structure, and the puncture needle enters or exits the patient by rotating the puncture needle handle 58.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a marrow groove puncture draw-out device for hematology department, includes big box (1), its characterized in that: the right end of the large box body (1) is provided with a small box body (5), and a positioning structure capable of positioning the small box body (5) is arranged in the large box body (1); the lower end of the small box body (5) is provided with a needle feeding box (52), and a rotating structure which can lead the needle feeding box (52) to swing back and forth and rotate left and right is arranged in the small box body (5); the upper end in the needle feeding box (52) is provided with a clamping structure, and the lower end of the clamping structure is provided with a lifting structure which can enable the clamping structure to move up and down;

the utility model discloses a needle of getting that big box (1) inside upper end is installed and is moved, get needle button (71) rear end and install two arc poles (76) that can follow opposite direction synchronous motion each other, work as constitute arc pole (76) and can overturn in proper order, move down, open structure when getting needle button (71) downstream, work as it can press from both sides tightly, move up, the structure of upset in proper order to constitute arc pole (76) when getting needle button (71) upstream, get needle button (71) lower extreme rear side and install and to carry out pivoted trough of belt cylinder (70) when getting needle button (71) downstream.

2. The apparatus according to claim 1, wherein the bone marrow aspiration device for hematology department comprises: the positioning structure comprises a driving straight gear (8), the front end of the driving straight gear (8) is meshed with a gear ring (9), teeth are arranged on the inner side and the outer side of the gear ring (9), and a first straight gear (12), a second straight gear (13) and a third straight gear (14) which can rotate are meshed with the inner side of the gear ring (9); a first telescopic rod (15) is fixedly connected to the center of the first straight gear (12), a first bevel gear (18) is fixedly connected to the right end of the outer surface of the first telescopic rod (15), a second bevel gear (19) is meshed with the upper end of the first bevel gear (18), a first threaded cylinder (20) is fixedly connected to the surface of the upper end of the second bevel gear (19), a first threaded rod (11) is connected to the inner portion of the first threaded cylinder (20) in a threaded mode, the first threaded cylinder (20) is rotatably connected to the inside of the large box body (1), a main fixing plate (7) is slidably connected to the surface of the lower end of the large box body (1), and the front end surface and the rear end surface of the first;

a second telescopic rod (16) is fixedly connected to the center of the second straight gear (13), a third bevel gear (21) is fixedly connected to the right end of the outer surface of the second telescopic rod (16), a fourth bevel gear (22) is meshed with the rear end of the third bevel gear (21), a second threaded cylinder (23) is fixedly connected to the surface of the rear end of the fourth bevel gear (22), a second threaded rod (2) is connected to the inner portion of the second threaded cylinder (23) in a threaded manner, the second threaded cylinder (23) is rotatably connected to the inner portion of the large box body (1), and a fixed box (4) is fixedly connected to the surface of the upper end of the second threaded rod (2);

a third telescopic rod (17) is fixedly connected at the center of the third straight gear (14), a fifth bevel gear (24) is fixedly connected at the right end of the outer surface of the third telescopic rod (17), a sixth bevel gear (25) is meshed at the upper end of the fifth bevel gear (24), a first telescopic cylinder (27) is fixedly connected at the center of the sixth bevel gear (25), the first telescopic cylinder (27) penetrates through the upper end surface of the large box body (1) and the lower end surface of the fixed box (4), a seventh bevel gear (26) is fixedly connected at the upper end of the outer surface of the first telescopic cylinder (27), an eighth bevel gear (28) is meshed at the upper end of the seventh bevel gear (26), a third threaded cylinder (29) is fixedly connected at the left end surface of the eighth bevel gear (28), a third threaded cylinder (3) is connected with internal threads of the third threaded cylinder (29), the third threaded cylinder (29) is rotatably connected to the inner wall of the fixed box (4), a second telescopic cylinder (98), the surface of the right end of the third threaded rod (3) is fixedly connected to the inner wall of the right end of the second telescopic cylinder (98), and the surface of the right end of the second telescopic cylinder (98) is fixedly connected to the surface of the left end of the small box body (5).

3. The apparatus according to claim 2, wherein the bone marrow aspiration device for hematology department comprises: the left end surfaces of the first telescopic rod (15), the second telescopic rod (16) and the third telescopic rod (17) are respectively and rotatably connected with a cylindrical barrel (34), the bottom end of the cylindrical barrel (34) is fixedly connected with a coil spring (33), the inner side of the coil spring (33) is fixedly connected with a first cylindrical rod (32), the outer side of the coil spring (33) is fixedly connected with the inner wall of the bottom end of the cylindrical barrel (34), the outer surface of the first cylindrical rod (32) is rotatably connected with the inner wall of the cylindrical barrel (34), the left end surface of the first cylindrical rod (32) is fixedly connected with an incomplete round handle (31), and the left end surface of the incomplete round handle (31) is fixedly connected with an adjusting button (30); the cylinder through-hole has all been seted up on big box (1) left end surface, and big cylinder groove has all been seted up to cylinder through-hole right-hand member, and two adjacent dark rectangular channels and shallow rectangular channels have all been seted up to big cylinder inslot inner wall, and dark rectangular channel inner wall all articulates there is key shape fixture block (36), and key shape fixture block (36) left end fixed surface is connected with first extension spring (35), and equal fixed connection in shallow rectangular channel inner wall in first extension spring (35) other end.

4. The apparatus according to claim 1, wherein the bone marrow aspiration device for hematology department comprises: the rotating structure comprises a fine positioning handle (93), a fourth straight gear (38) is coaxially and fixedly connected to the left end of the fine positioning handle (93), a first worm (39) is coaxially and fixedly connected to the left end of the fourth straight gear (38), a first worm wheel (40) is meshed with the front end of the first worm (39), a first rotating shaft (45) is fixedly connected to the center of the first worm wheel (40), a ninth bevel gear (47) is fixedly connected to the lower end of the outer surface of the first rotating shaft (45), and a tenth bevel gear (48) is meshed with the lower side of the left end of the ninth bevel gear (47);

the front end of the fourth straight gear (38) is meshed with a movable fifth straight gear (41), the lower side of the front end of the fifth straight gear (41) is meshed with a sixth straight gear (42), the left end of the sixth straight gear (42) is coaxially fixedly connected with a second worm (43), the rear end of the second worm (43) is meshed with a second worm gear (44), the lower end of the second worm gear (44) is fixedly connected with a Y-shaped rotating shaft (46), the lower end of the Y-shaped rotating shaft (46) is rotatably connected with a second rotating shaft (49), the second rotating shaft (49) is coaxially fixedly connected with a tenth bevel gear (48), and the middle part of the outer surface of the second rotating shaft (49) is fixedly connected with a right-angle plate (50).

5. The apparatus according to claim 1, wherein the bone marrow aspiration device for hematology department comprises: the clamping structure comprises an upper ring plate (53), the lower end surface of the upper ring plate (53) is rotatably connected with a lower ring plate (64), a ring groove is formed in the lower ring plate (64), the bottom end surface of the ring groove is hinged with three first connecting rods (68) which are evenly distributed, the inner sides of the three first connecting rods (68) which are evenly distributed are hinged with arc-shaped clamping plates (65), the outer sides of the arc-shaped clamping plates (65) are hinged with second connecting rods (66), and the other ends of the second connecting rods (66) are hinged with the lower end surface of the upper ring plate (53).

6. The apparatus according to claim 5, wherein the bone marrow aspiration device for hematology department comprises: the elevating structure include with lower crown plate (64) fixed connection's four corners ring (96), the equal fixedly connected with fourth screw thread section of thick bamboo (55) of every angle department of four corners ring (96), the equal threaded connection in fourth screw thread section of thick bamboo (55) is little threaded rod (95), the equal coaxial rigid coupling of little threaded rod (95) lower extreme has first bevel pinion (56), first bevel pinion (56) inboard all meshes has second bevel pinion (57), the coaxial rigid coupling of second bevel pinion (57) right-hand member has into needle handle (58).

7. The apparatus according to claim 1, wherein the bone marrow aspiration device for hematology department comprises: the front end of the arc-shaped rod (76) is hinged with a large U-shaped plate (99), the surface of the front end of the large U-shaped plate (99) is fixedly connected with a third rotating shaft (78), the rear end of the outer surface of the third rotating shaft (78) is fixedly connected with a second small straight gear (79), and the left side of the second small straight gear (79) is meshed with a second straight rack (80);

two cylindrical grooves are formed in the surfaces of the left end and the right end of the large U-shaped plate (99), a fifth spring (91) is fixedly connected to the bottom end of each cylindrical groove, a third cylindrical rod (89) is fixedly connected to the outer side of each fifth spring (91), the third cylindrical rods (89) are slidably connected to the inner wall of each cylindrical groove, small U-shaped plates (84) are fixedly connected to the surfaces of the outer sides of the third cylindrical rods (89), fourth connecting rods (86) are hinged to the rear ends of the small U-shaped plates (84), and the other ends of the fourth connecting rods (86) are hinged to the outer surfaces of the two arc-shaped rods (76); the upper end surface and the lower end surface of each of the two small U-shaped plates (84) are hinged with a third connecting rod (85), the inner sides of the two bilaterally symmetrical third connecting rods (85) are hinged with a cylindrical ring (87), the inner walls of the cylindrical rings (87) are connected with guide rods (90) in a sliding manner, and the inner ends of the two guide rods (90) are fixedly connected to the upper end surface and the lower end surface of the large U-shaped plate (99);

the outer surface of the third rotating shaft (78) is rotatably connected to the right side of the lower end of the needle taking button (71), the surface of the right side of the lower end of the needle taking button (71) is fixedly connected with a first small telescopic rod (81), the surface of the lower end of the first small telescopic rod (81) is fixedly connected with a supporting plate (82), the surface of the rear end of the supporting plate (82) is fixedly connected with a right-angle baffle (88), and the right end of the right-angle baffle (88) is hinged with a right-angle turning;

an inclined plane is formed in the lower side of the left end of the needle taking button (71), a first straight rack (73) is connected to the lower end of the inclined plane in a sliding mode, a first small straight gear (74) is meshed with the upper end of the first straight rack (73), a fourth spring (72) is fixedly connected to the surface of the rear end of the first straight rack (73), and the right end of the first small straight gear (74) is coaxially and fixedly connected with the grooved cylinder (70).