Chest puncture outfit

Abstract

The utility model provides a chest puncture outfit. The chest puncture outfit comprises a shell, a first sliding part and a second sliding part are arranged in the shell, the top of the first sliding part and the top of the second sliding part are each provided with an installation structure, a puncture needle structure is arranged between the two installation structures, a percussion structure is installed between the first sliding part and the bottom of the shell, and the percussion structure is arranged between the first sliding part and the bottom of the shell. A poking structure is arranged on the surface of the bottom of the shell located on one side of the percussion structure, the mounting structure comprises two second limiting pieces, the two second limiting pieces are fixedly connected with the tops of a first sliding piece and a second sliding piece correspondingly, and first limiting pieces are fixedly connected with the tops of the first sliding piece and the second sliding piece located on one sides of the second limiting pieces correspondingly; the chest puncture outfit has the advantages that the outer needle can be effectively prevented from being triggered by mistake, and the sleeve parts of the outer needle and the inner needle are simple in structure and easy to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to the biopsy puncture appliance field especially, a kind of chest puncture device. BACKGROUND

[0002] In clinical treatment, breast tumor is generally treated by surgery, drug therapy, chemotherapy etc., before formal treatment plan is determined, an important examination is to confirm the nature of tumor, and puncture biopsy is a common technique, using puncture sampling instrument, chest puncture can be carried out on tumor sampling with detection instrument.

[0003] The semi-automatic biopsy needle currently used generally needs to be used with disposable inner needle and outer needle, since the outer needle needs to be fired, and the outer needle and the inner needle need to be fixed on the sliding structure inside the handle, the components at one end of the sleeve are relatively complex, which is inconvenient to disassemble and assemble, and the production cost is relatively high, which is not conducive to popularization and use.

[0004] Secondly, the outer needle in the semi-automatic biopsy needle currently needs to be opened to the state to be fired before use, although safety protection measures are provided, but mis-touching problem still occurs, which causes the user to fire the outer needle at wrong time, causing accidents.

[0005] Therefore, it is necessary to provide a new chest puncture device to solve the above technical problems. SUMMARY

[0006] The utility model solves the technical problem to provide a kind of chest puncture device, which can effectively avoid the misfiring of the outer needle, and the sleeve structure of the outer needle and the inner needle is simple and easy to install.

[0007] To solve the above technical problems, the utility model provides a kind of chest puncture device, which includes a shell, a first sliding member and a second sliding member are arranged inside the shell, the top of the first sliding member and the second sliding member is provided with a mounting structure, a puncture needle structure is arranged between the two mounting structures, a firing structure is arranged between the first sliding member and the bottom of the shell, a dialing structure is arranged on the surface of the bottom of the shell on one side of the firing structure.

[0008] The mounting structure includes a second limiting piece, the first sliding member and the second sliding member are fixedly connected to the top of the second limiting piece, the first sliding member and the second sliding member are fixedly connected to the top of the first limiting piece on one side of the second limiting piece, and the surface of the second limiting piece is threadedly connected with a top wire.

[0009] The puncture needle structure comprises an outer needle and an inner needle, the inner needle is located inside the outer needle, the end of the inner needle and the end of the outer needle are fixedly connected with a sleeve, the surface of the two sleeves is attached to the surface of a limiting piece one and a limiting piece two, a positioning hole is formed in the surface of the side of the sleeve facing the limiting piece two, the end of the jackscrew extends to the inside of the positioning hole, and a sampling groove is formed in the surface of the inner needle away from the side of the sleeve.

[0010] The pushing structure comprises a through groove, the through groove is formed in the bottom surface of the shell, a pushing block is slidably connected inside the through groove, a connecting rod is fixedly connected to the top of the pushing block, a protective cover is fixedly connected to the bottom of the shell outside the through groove, and a rotating cover plate is rotatably connected to the surface of the protective cover through a damping rotating shaft.

[0011] As a further scheme of the utility model, the firing structure comprises an activity rod, one end of the activity rod is fixedly connected with the bottom of the first sliding piece, the surface of the activity rod is fixedly connected with an activity block, the bottom of the shell is fixedly connected with a guide piece, the guide piece is slidably connected with the activity rod, a return spring is fixedly connected between the guide piece and the activity block outside the activity rod, a rotating piece is rotatably connected to the top inner wall of the shell on the side of the activity rod, the side surface of the rotating piece facing the activity rod is provided with an inclined surface two, the end of the inclined surface two is provided with a convex table, one end of the activity block facing the rotating piece is provided with an inclined surface one, and a spring rod is hinged between the rotating piece and the inner wall of the shell, and one end of the connecting rod away from the pushing block is rotatably connected with the surface of the rotating piece.

[0012] Through the above technical scheme, when the device is used, the first connecting piece and the second connecting piece are pulled in sequence, in this process, the activity block at the bottom of the first connecting piece moves horizontally and compresses the return spring, at the same time, one end of the inclined surface one thereof abuts against the inclined surface two on the surface of the rotating piece, until the activity block is clamped on the convex table, so that the first sliding piece is in a state of waiting to fire, then the outer needle and the inner needle are inserted into the guide needle arranged in advance to a suitable position, and the second connecting piece is pushed to drive the second sliding piece to move horizontally, so that the sampling groove at the end of the inner needle is inserted into the inside of the tissue to be sampled, when the outer needle needs to be fired, the pushing block is transversely moved, so that the rotating piece is moved through the connecting rod, at this time, the activity block is released from the limitation of the convex table, and is popped out under the reaction force of the return spring, thereby driving the outer needle to move, so that the tissue on the side of the sampling groove at the end of the outer needle is cut and sampled, and the sampling work is completed.

[0013] As a further scheme of the utility model, the top edge of the shell is hinged with a top cover, the surface of the top cover is fixedly connected with a clamping block, a clamping groove is formed in the inner wall of one side of the shell, and the clamping groove and the clamping block are matched.

[0014] Through the technical scheme, in the normal state, the top cover is fixed on the shell through the clamping block and the clamping groove, and when the puncture needle structure needs to be replaced, the push plate can be pushed upward to be opened.

[0015] As a further scheme of the utility model, the bottom surface of the rotating cover plate is fixedly connected with a plurality of evenly distributed anti-skid teeth, and the surface of the shell between the two clamping blocks is fixedly connected with a push plate.

[0016] Through the technical scheme, in the conventional structure, when the device is used, the first connecting piece and the second connecting piece are pulled in sequence, in this process, the movable block at the bottom of the first connecting piece moves horizontally and compresses the return spring, at the same time, one end of the inclined surface one thereof abuts against the inclined surface two on the surface of the rotating piece, until the movable block is clamped on the boss, so that the first sliding piece is in a cocking state, then the outer needle and the inner needle are inserted into the appropriate position in the guide needle arranged in advance, and the second connecting piece is pushed to drive the second sliding piece to move horizontally, so that the sampling groove at the end of the inner needle is inserted into the inside of the tissue to be sampled, when the outer needle needs to be fired, since the movable block is clamped on the boss, at this time, the outer needle cannot be moved by applying force to the first connecting piece, but the push block at the back of the shell needs to be actuated to achieve this, but in this structure, the push block is arranged inside the protective cover and the rotating cover plate, so that the possibility of accidental firing is greatly reduced, and the probability of accidents is reduced, when the user operates, the index finger of the hand can be moved to the back of the shell and the rotating cover plate is pushed to move to one side, so that the push block is exposed, then the head of the index finger is inserted into the protective cover and the push block is transversely moved, so that the connecting rod can drive the rotating piece to move, at this time, the movable block is released from the boss, and is ejected under the reaction force of the return spring, thereby driving the outer needle to move, so that the tissue on one side of the cutting sampling groove at the end of the outer needle is cut, and the sampling work is completed, the structure design further reduces the risk of accidental firing when the user operates, and the structure design is safer.

[0017] As a further scheme of the utility model, the inside of the shell on the front and back sides of the first sliding piece and the second sliding piece is provided with a limiting structure, the limiting structure comprises a limiting rod, the limiting rod is provided with two and is fixedly connected with the inner walls of the shell on the left and right sides of the first sliding piece respectively, the left and right side walls of the first sliding piece and the second sliding piece are fixedly connected with a limiting sleeve, and the limiting sleeve is slidingly connected with the limiting rod on the adjacent side.

[0018] Through the technical scheme, the limiting sleeves on the two sides of the first sliding piece and the second sliding piece slide on the surface of the limiting rod, so that the user can conveniently push and pull the first sliding piece and the second sliding piece.

[0019] As a further scheme of the utility model, the surface of the two limiting rods is fixedly connected with three equidistantly distributed stoppers, the first gap and the second gap are formed between the three stoppers, the limiting sleeve on the surface of the first sliding piece is located inside the first gap, and the limiting sleeve on the surface of the second sliding piece is located inside the second gap.

[0020] Through the technical scheme, the first gap and the second gap are separated by the three stoppers, so that the activity space of the first sliding piece and the second sliding piece is limited.

[0021] As a further scheme of the utility model, the surface of the two limiting rods is fixedly connected with three equidistantly distributed stoppers, the first gap and the second gap are formed between the three stoppers, the limiting sleeve on the surface of the first sliding piece is located inside the first gap, and the limiting sleeve on the surface of the second sliding piece is located inside the second gap.

[0022] Through the technical scheme, the first gap and the second gap are separated by the three stoppers, so that the activity space of the first sliding piece and the second sliding piece is limited.

[0023] Compared with the related art, the chest puncture device has the following beneficial effects:

[0024] 1. In the utility model, in the traditional structure, when using the device, the first connecting piece and the second connecting piece are pulled in sequence, in this process, the movable block at the bottom of the first connecting piece moves horizontally and compresses the reset spring, at the same time, one end of the inclined surface one thereof abuts against the inclined surface two on the surface of the rotating piece, until the movable block is clamped on the boss, so that the first sliding piece is in a cocking state, then the outer needle and the inner needle are inserted into the appropriate position in the guide needle arranged in advance, and the second connecting piece is pushed to drive the second sliding piece to move horizontally, so that the sampling groove at the end of the inner needle is inserted into the inside of the tissue to be sampled, when the outer needle needs to be fired, since the movable block is clamped on the boss, at this time, the outer needle cannot be moved by applying force to the first connecting piece, but the outer needle can be moved only by actuating the actuating block at the back of the shell, in the structure, the actuating block is arranged on the inside of the protective cover and the rotating cover, therefore, the possibility of accidental firing is greatly reduced, and the probability of accidents is reduced, when the user operates, the index finger of the hand can be moved to the back of the shell and the rotating cover is pushed, so that the actuating block is exposed, then the head of the index finger is inserted into the protective cover and the actuating block is transversely actuated, the rotating piece can be driven to move through the connecting rod, at this time, the movable block is released from the boss, and is ejected under the reaction force of the reset spring, thereby driving the outer needle to move, so that the tissue on one side of the sampling groove at the end of the outer needle is cut and sampled, and the sampling work is completed, the structure design further reduces the risk of accidental firing when the user operates, and the structure design is safer.

[0025] 2. The utility model discloses a device, puncture needle structure simple design, the sleeve is only set arc surface and positioning hole, convenient production and manufacture and reduce structure cost, and when installing two sleeves are pushed into the inside of limiting piece no. 1 and limiting piece no. 2 matched with it respectively, then twist the top silk, make the top silk end insertion into the positioning hole matched with it and can realize installation, and the installation step is simplified and fixed firm, and the structure design is reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to facilitate the person skilled in the art understanding, the utility model is further explained below in combination with the drawings.

[0027] Figure 1 It is the overall structure schematic diagram of a chest puncture ware in the utility model;

[0028] Figure 2 It is the local structure schematic diagram of a chest puncture ware in the utility model Figure One ;

[0029] Figure 3 It is the local structure schematic diagram of a chest puncture ware in the utility model Figure Two ;

[0030] Figure 4 It is the local structure split schematic diagram of a chest puncture ware in the utility model Figure One ;

[0031] Figure 5 It is the local structure split schematic diagram of a chest puncture ware in the utility model Figure Two ;

[0032] Figure 6 It is the local structure schematic diagram of a chest puncture ware in the utility model Figure Three .

[0033] Main symbol explanation:

[0034] 1, shell, 2, top cap, 3, clamping block, 4, firing structure, 5, clamping groove, 6, installation structure, 7, first connecting piece, 8, second connecting piece, 9, limiting structure, 10, puncture needle structure, 11, protective cover, 12, shift structure, 13, rotating cover plate, 14, outer needle, 15, inner needle, 16, sampling groove, 17, sleeve, 18, positioning hole, 19, first sliding piece, 20, second sliding piece, 21, limiting piece no. 1, 22, limiting piece no. 2, 23, top silk, 24, limiting rod, 25, limiting sleeve, 26, stopper, 27, movable block, 28, movable rod, 29, return spring, 30, guide, 31, rotating piece, 32, spring rod, 33, connecting rod, 34, inclined plane no. 1, 35, inclined plane no. 2, 36, boss, 37, through groove, 38, shift block. DETAILED DESCRIPTION

[0035] Please combine Figures 1 to 6 wherein, Figure 1 is the overall structure diagram of a chest puncture device in the utility model; Figure 2 is the local structure diagram of a chest puncture device in the utility model Figure One ; Figure 3 is the local structure diagram of a chest puncture device in the utility model Figure Two ; Fig. 4 is a local structure split diagram of a chest puncture device in the utility model Figure One ; Figure 5 is a local structure split diagram of a chest puncture device in the utility model Figure Two ; Figure 6 is the local structure diagram of a chest puncture device in the utility model Figure Three A chest puncture device comprises:

[0036] The shell 1 is internally provided with a first sliding piece 19 and a second sliding piece 20, the top of the first sliding piece 19 and the second sliding piece 20 is respectively provided with a mounting structure 6, the two mounting structures 6 are provided with a puncture needle structure 10, the first sliding piece 19 and the second sliding piece 20 are respectively provided with a firing structure 4 and a driving structure 12;

[0037] The mounting structure 6 comprises a limiting piece two 22, the two limiting piece two 22 are respectively fixedly connected with the top of the first sliding piece 19 and the second sliding piece 20, the top of the first sliding piece 19 and the second sliding piece 20 is respectively fixedly connected with a limiting piece one 21, the surface of the limiting piece two 22 is screw-connected with a jackscrew 23;

[0038] The puncture needle structure 10 comprises an outer needle 14 and an inner needle 15, the inner needle 15 is located in the inner needle 14, the end of the inner needle 15 and the outer needle 14 is fixedly connected with a sleeve 17, the surface of the two sleeves 17 is matched with the surface of the limiting piece one 21 and the limiting piece two 22, the surface of the sleeve 17 on the side of the limiting piece two 22 is provided with a positioning hole 18, the end of the jackscrew 23 extends to the inner side of the positioning hole 18, the surface of the inner needle 15 on the side away from the sleeve 17 is provided with a sampling groove 16;

[0039] The driving structure 12 comprises a through slot 37, the through slot 37 is arranged on the bottom surface of the shell 1, the through slot 37 is slidably connected with a driving block 38, the top of the driving block 38 is fixedly connected with a connecting rod 33, the bottom of the shell 1 on the outer side of the through slot 37 is fixedly connected with a protective cover 11, the surface of the protective cover 11 is rotatably connected with a rotating cover plate 13 through a damping rotating shaft.

[0040] As Figures 1-6As shown, the firing structure 4 comprises a movable rod 28, one end of the movable rod 28 is fixedly connected with the bottom of the first sliding piece 19, the surface of the movable rod 28 is fixedly connected with a movable block 27, the bottom of the shell 1 is fixedly connected with a guide 30, the guide 30 is slidably connected with the movable rod 28, the guide 30 located outside the movable rod 28 is fixedly connected between the movable block 27, the top inner wall of the shell 1 located on one side of the movable rod 28 is rotatably connected with a rotating piece 31, the side surface of the rotating piece 31 towards the movable rod 28 is provided with an inclined surface two 35, the end of the inclined surface two 35 is provided with a boss 36, the end of the movable block 27 towards the rotating piece 31 is provided with an inclined surface one 34, the spring rod 32 is hinged between the rotating piece 31 and the inner wall of the shell 1, the end of the connecting rod 33 away from the push block 38 is rotatably connected with the surface of the rotating piece 31.

[0041] When using the device, the first connecting piece 7 and the second connecting piece 8 are pulled in turn, in this process, the movable block 27 at the bottom of the first connecting piece 7 moves horizontally and compresses the reset spring 29, at the same time, one end of the inclined surface one 34 thereof abuts against the inclined surface two 35 on the surface of the rotating piece 31, until the movable block 27 is clamped on the boss 36, so that the first sliding piece 19 is in a state ready to fire, then the outer needle 14 and the inner needle 15 are inserted into the guide needle arranged in advance to the appropriate position, and the second connecting piece 8 is pushed to drive the second sliding piece 20 to move horizontally, so that the sampling groove 16 at the end of the inner needle 15 is inserted into the inside of the tissue to be sampled, when the outer needle 14 needs to be fired, the push block 38 is transversely moved, so that the rotating piece 31 is moved through the connecting rod 33, at this time, the movable block 27 is released from the limitation of the boss 36, and is popped out under the action of the reset spring 29, thereby driving the outer needle 14 to move, so that the outer needle 14 cuts the tissue on one side of the sampling groove 16, and the sampling work is completed.

[0042] As shown in the Figures 1-6 The top edge of the shell 1 is hinged with a top cover 2, the surface of the top cover 2 is fixedly connected with a clamping block 3, the inner wall of the shell 1 is provided with a clamping groove 5, and the clamping block 3 and the clamping groove 5 are matched.

[0043] In the normal state, the top cover 2 is fixed on the shell 1 through the clamping block 3 and the clamping groove 5, when the puncture needle structure 10 needs to be replaced, the push plate can be pushed upward to open.

[0044] As shown in the Figures 1-6 The bottom surface of the rotating cover plate 13 is fixedly connected with a plurality of evenly distributed anti-skid teeth, the surface of the shell 1 between the two clamping blocks 3 is fixedly connected with a push plate.

[0045] In the traditional structure, when the device is used, the first connecting piece 7 and the second connecting piece 8 are pulled in sequence. During this process, the movable block 27 at the bottom of the first connecting piece 7 moves horizontally and compresses the reset spring 29, and at the same time, one end of the inclined surface one 34 thereof abuts against the inclined surface two 35 on the surface of the rotating piece 31 until the movable block 27 is clamped on the boss 36, so that the first sliding piece 19 is in a cocking state. Then, the outer needle 14 and the inner needle 15 are inserted into the guide needle arranged in advance to the appropriate position, and the second connecting piece 8 is pushed to drive the second sliding piece 20 to move horizontally, so that the sampling groove 16 at the end of the inner needle 15 is inserted into the inside of the tissue to be sampled. When the outer needle 14 needs to be fired, since the movable block 27 is clamped on the boss 36, at this time, the force applied to the first connecting piece 7 cannot move the outer needle 14, but the actuating block 38 at the back of the shell 1 needs to be actuated to achieve this. However, in this structure, the actuating block 38 is arranged inside the protective cover 11 and the rotating cover plate 13, so the possibility of accidental firing is greatly reduced, and the probability of accidents is also reduced. When the user operates, the index finger of the hand can be moved to the back of the shell 1 and push the rotating cover plate 13 to move to one side to expose the actuating block 38. Then, the index finger is inserted into the protective cover 11 and horizontally moves the actuating block 38, which can drive the rotating piece 31 to move through the connecting rod 33. At this time, the movable block 27 is released from the boss 36, and is popped out under the action of the reset spring 29, thereby driving the outer needle 14 to move, so that the outer needle 14 cuts the tissue on one side of the sampling groove 16 to complete the sampling work. The structure design further reduces the risk of accidental firing when the user operates, and the structure design is more secure.

[0046] As shown in Figures 1-6 , the inside of the shell 1 on both sides of the first sliding piece 19 and the second sliding piece 20 is provided with a limiting structure 9. The limiting structure 9 includes a limiting rod 24, and the limiting rod 24 is provided with two and is fixedly connected with the inner wall of the shell 1 on both sides of the first sliding piece 19. The left and right side walls of the first sliding piece 19 and the second sliding piece 20 are fixedly connected with a limiting sleeve 25, and the limiting sleeve 25 is slidingly connected with the limiting rod 24 on the adjacent side.

[0047] The limiting sleeves 25 on both sides of the first sliding piece 19 and the second sliding piece 20 slide on the surface of the limiting rod 24, thereby facilitating the user to push and pull the first sliding piece 19 and the second sliding piece 20.

[0048] As shown in Figures 1-6 , the surfaces of the two limiting rods 24 are fixedly connected with three equally spaced blocking blocks 26, and the three blocking blocks 26 form a first gap and a second gap therebetween. The limiting sleeve 25 on the surface of the first sliding piece 19 is located in the first gap, and the limiting sleeve 25 on the surface of the second sliding piece 20 is located in the second gap.

[0049] The first gap and the second gap are separated by arranging three stoppers 26, so as to limit the moving space of the first slider 19 and the second slider 20.

[0050] As shown in the drawings, one side wall surface of the first slider 19 is fixedly connected with a first connecting piece 7, the first connecting piece 7 penetrates through the surface of the second slider 20 and extends to the outside of the shell 1, one side wall surface of the second slider 20 is fixedly connected with a second connecting piece 8, the second connecting piece 8 extends to the outside of the shell 1, and the end portions of the first connecting piece 7 and the second connecting piece 8 located outside the shell 1 are fixedly connected with pull rings. Figures 1-6 Through the pull rings at the end portions of the first connecting piece 7 and the second connecting piece 8, the user can adjust the positions of the first slider 19 and the second slider 20 inside the shell 1.

[0051] The working principle of the chest puncture device is as follows:

[0052] The first step: in the traditional structure, when using the device, the first connecting piece 7 and the second connecting piece 8 are pulled in sequence, in this process, the movable block 27 at the bottom of the first connecting piece 7 moves horizontally and compresses the reset spring 29, at the same time, one end of the inclined surface one 34 thereof abuts against the inclined surface two 35 on the surface of the rotating piece 31, until the movable block 27 is clamped on the boss 36, so that the first slider 19 is in a cocking state, then the outer needle 14 and the inner needle 15 are inserted into the appropriate positions in the guide needle arranged in advance, and the second connecting piece 8 is pushed to drive the second slider 20 to move horizontally, so that the sampling groove 16 at the end portion of the inner needle 15 is inserted into the inside of the tissue to be sampled, when the outer needle 14 needs to be fired, since the movable block 27 is clamped on the boss 36, at this time, the force applied to the first connecting piece 7 cannot move the outer needle 14, but the actuating block 38 at the back of the shell 1 needs to be actuated, in this structure, the actuating block 38 is arranged inside the protective cover 11 and the rotating cover plate 13, therefore, the possibility of accidental firing is greatly reduced, and the probability of accidents is also reduced, when the user operates, the index finger of the hand can be moved to the back of the shell 1 and push the rotating cover plate 13, so that the actuating block 38 is exposed, then the head of the index finger is inserted into the protective cover 11 and horizontally moves the actuating block 38, so that the rotating piece 31 is driven to move through the connecting rod 33, at this time, the movable block 27 is released from the limitation of the boss 36, and is ejected under the reaction force of the reset spring 29, and then drives the outer needle 14 to move, so that the tissue on one side of the sampling groove 16 at the end portion of the outer needle 14 is cut and sampled, and the sampling work is completed, the structure design further reduces the risk of accidental firing when the user operates, and the structure design is safer.

[0053]

[0054] ​Second step: in the device, the puncture needle structure 10 is simple in design, the sleeve 17 is only provided with an arc surface and a positioning hole 18, production and manufacturing are facilitated and structural cost is reduced, and when installation is performed, two sleeves 17 are respectively pushed into the inner sides of limiting member one 21 and limiting member two 22 matched therewith, then a top screw 23 is screwed, the end of the top screw 23 is inserted into a positioning hole 18 matched therewith, and installation can be realized, installation steps are simplified and fixed firmly, and the structure is reasonably designed.

[0055] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, the setting of the power mechanism, the power supply system and the control system of the device is not completely described clearly in the technical principle of the design, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific of the power mechanism, the power supply system and the control system can be clearly known, the control mode of the application file is automatically controlled through the controller, and the control circuit of the controller can be realized through simple programming of the person skilled in the art;

[0056] The standard parts used can be purchased from the market, and can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional screw, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt conventional models in the prior art, and the components known by the person skilled in the art, the structure and principle thereof can be known by the person skilled in the art through a technical manual or through a conventional experimental method.

[0057] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents, and the same reason includes the patent protection range of the utility model.

Claims

1. A chest puncture device, characterized in that, The application relates to a shell (1) provided with a first sliding piece (19) and a second sliding piece (20) in the interior of the shell (1), the top of the first sliding piece (19) and the top of the second sliding piece (20) are provided with mounting structures (6), a puncture needle structure (10) is arranged between the two mounting structures (6), a firing structure (4) is arranged between the first sliding piece (19) and the bottom of the shell (1), and a pushing structure (12) is arranged on the bottom surface of the shell (1) on one side of the firing structure (4). The mounting structure (6) comprises limiting pieces two (22), the two limiting pieces two (22) are fixedly connected with the top of the first sliding piece (19) and the top of the second sliding piece (20) respectively, the top of the first sliding piece (19) and the top of the second sliding piece (20) are fixedly connected with limiting pieces one (21) on one side of the limiting pieces two (22), and the surface of the limiting pieces two (22) is screw-connected with a jackscrew (23). The puncture needle structure (10) comprises an outer needle (14) and an inner needle (15), the inner needle (15) is arranged in the inner needle (14), the end of the inner needle (15) and the end of the outer needle (14) are fixedly connected with sleeve pipes (17), the surface of the two sleeve pipes (17) is attached to the surface of the limiting pieces one (21) and the limiting pieces two (22), the surface of the sleeve pipe (17) on one side of the limiting pieces two (22) is provided with a positioning hole (18), the end of the jackscrew (23) extends to the inner side of the positioning hole (18), and the surface of the inner needle (15) away from the sleeve pipe (17) is provided with a sampling groove (16). The pushing structure (12) comprises a through groove (37), the through groove (37) is arranged on the bottom surface of the shell (1), the pushing structure (12) is slidably connected with a pushing block (38) in the through groove (37), the top of the pushing block (38) is fixedly connected with a connecting rod (33), the bottom of the shell (1) on the outer side of the through groove (37) is fixedly connected with a protective cover (11), and the surface of the protective cover (11) is rotatably connected with a rotating cover plate (13) through a damping rotating shaft.

2. The breast puncturer of claim 1, wherein, The firing structure (4) includes a movable rod (28), one end of the movable rod (28) is fixedly connected with the bottom of the first sliding piece (19), the surface of the movable rod (28) is fixedly connected with a movable block (27), the bottom of the shell (1) is fixedly connected with a guide piece (30), the guide piece (30) is slidingly connected with the movable rod (28), the guide piece (30) located outside the movable rod (28) is fixedly connected between the movable block (27), a reset spring (29) is fixedly connected between the guide piece (30) and the movable block (27), the top inner wall of the shell (1) located on one side of the movable rod (28) is rotatably connected with a rotating piece (31), the side surface of the rotating piece (31) facing the movable rod (28) is provided with an inclined surface two (35), the end of the inclined surface two (35) is provided with a boss (36), one end of the movable block (27) facing the rotating piece (31) is provided with an inclined surface one (34), the rotating piece (31) and the inner wall of the shell (1) are hinged with a spring rod (32), one end of the connecting rod (33) away from the pushing block (38) is rotatably connected with the surface of the rotating piece (31).

3. The chest puncture device of claim 2, wherein, The top edge of the shell (1) is hingedly connected with a top cover (2), the surface of the top cover (2) is fixedly connected with a clamping block (3), the inner wall of the shell (1) is provided with a clamping groove (5), and the clamping groove (5) is matched with the clamping block (3).

4. The chest puncture device of claim 3, wherein, The bottom surface of the rotating cover plate (13) is fixedly connected with a plurality of evenly distributed anti-skid teeth, the surface of the shell (1) between the two clamping blocks (3) is fixedly connected with a pushing plate.

5. The chest puncture device of claim 4, wherein, The inside of the shell (1) located on the front and back of the first sliding piece (19) and the second sliding piece (20) is provided with a limiting structure (9), the limiting structure (9) includes a limiting rod (24), the limiting rod (24) is provided with two and is fixedly connected with the inner wall of the shell (1) on the left and right sides of the first sliding piece (19), the left and right side walls of the first sliding piece (19) and the second sliding piece (20) are fixedly connected with a limiting sleeve (25), and the limiting sleeve (25) is slidingly connected with the limiting rod (24) on the adjacent side.

6. The chest puncture device of claim 5, wherein, The surfaces of the two limiting rods (24) are fixedly connected with three equidistantly distributed stop blocks (26), and the three stop blocks (26) form a first gap and a second gap therebetween, the limiting sleeve (25) on the surface of the first sliding piece (19) is located in the first gap, and the limiting sleeve (25) on the surface of the second sliding piece (20) is located in the second gap.

7. The chest puncture device of claim 6, wherein, The surface of the side wall of the first sliding piece (19) is fixedly connected with a first connecting piece (7), the first connecting piece (7) penetrates the surface of the second sliding piece (20) and extends to the outside of the shell (1), the surface of the side wall of the second sliding piece (20) is fixedly connected with a second connecting piece (8), the second connecting piece (8) extends to the outside of the shell (1), and the ends of the first connecting piece (7) and the second connecting piece (8) located outside the shell (1) are fixedly connected with a pull ring.

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