CN120114735B

CN120114735B - Lymph node suction fixator

Info

Publication number: CN120114735B
Application number: CN202510425779.XA
Authority: CN
Inventors: 马善吴; 强光亮; 宁英泽; 陈凯旋; 金亮; 贺未
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2025-04-07
Filing date: 2025-04-07
Publication date: 2025-08-29
Anticipated expiration: 2045-04-07
Also published as: CN120114735A

Abstract

The invention discloses a lymph node suction fixer, and relates to the technical field of thoracic surgery. Including the suction body, install connecting rod one on the suction body, install the shifting block on the connecting rod one, the inside of suction body is provided with supporting component, the suction body passes through supporting component and rotates inside installs the movable rod, be provided with bilateral symmetry's lug one and lug two on the movable rod, and install two sets of fixed blocks that have the interval on the movable rod. The suction tube body, install connecting rod one on the suction tube body, install the shifting block on the connecting rod one, the inside of suction tube body is provided with supporting component, the suction tube body passes through supporting component and rotates inside installs the movable rod, be provided with bilateral symmetry's lug one and lug two on the movable rod, and install two sets of fixed blocks that have the interval on the movable rod.

Description

Lymph node suction fixer

Technical Field

The invention relates to the technical field of thoracic surgery, in particular to a lymph node suction fixer.

Background

The current lymph node sampling or cleaning in thoracic surgery pulmonary nodule surgery is an important component of thoracic surgery, and has a key meaning in lung cancer treatment in particular. The method is characterized in that the lymph nodes are not formed into a relatively stable shape, particularly the shape change of the lymph nodes is unstable under the action of external force, so that the lymph nodes are difficult to remove, the lymph nodes are exposed by assistance of an assistant in a traditional endoscopic cleaning mode, a doctor of a main knife clamps the lymph nodes by using an aspirator or a gripper instrument, the lymph nodes are often broken and bleeding, the operation field is unclear, the lymph node cleaning is incomplete, the residual risk of the metastatic lymph nodes is increased, and the operation quality is reduced.

Aiming at the problems, innovative design is urgently needed on the basis of the original design.

Disclosure of Invention

The invention aims to provide a lymph node suction fixator, which aims to solve the problems that the suction fixator is independent from a lymph node traction instrument and is mainly operated by a main knife and an assistant respectively, the operation of the multiple instruments causes collision of incision instruments, the risk of tissue injury is increased, the conventional grasping instrument is easy to break lymph nodes in the lymph node cleaning process, and the operation safety is reduced.

The invention provides a lymph node suction fixer, which comprises a suction tube body, wherein the bottom of the rear end of the suction tube body is rotatably provided with a shifting block through a first connecting rod and a torsion spring, a supporting component is arranged in the suction tube body, a movable rod is rotatably arranged in the suction tube body through the supporting component, a first lug and a second lug are symmetrically fixed on the outer side of the movable rod, the rear end of the movable rod is sleeved with two fixed blocks, and the two fixed blocks are positioned at the front end and the rear end of the first connecting rod;

The supporting component comprises a supporting block fixedly mounted on the inner wall of the suction pipe body, a telescopic rod is fixedly mounted on the supporting block, the extending end of the telescopic rod is connected with a rotating disc, symmetrical sliding blocks are fixedly mounted on the rotating disc, a sliding groove is formed in the rotating disc, a connecting rod II is mounted in the suction pipe body through protruding plate penetrating limiting rotation, a first bevel gear is fixedly mounted at the front end of the connecting rod II, a guide post is fixedly mounted at the tail end of the connecting rod II, a spiral groove is formed in the guide post, a connecting plate is mounted at the outer side of the suction pipe body, a supporting plate is fixedly mounted at the outer end of the connecting plate, a threaded rod is mounted in the suction pipe body in a rotating mode, a second bevel gear is fixedly mounted on the threaded rod, and an adsorption head is arranged at the front end of the suction pipe body.

Preferably, the first protruding block on the movable rod is arranged in the sliding groove of the rotating disc, the movable rod is clamped with the rotating disc through the first protruding block and the sliding groove, and the outer ends of the sliding blocks at two ends of the rotating disc are arranged in the spiral groove.

Preferably, the guide post and the first bevel gear form an integrated structure through the second connecting rod, the first bevel gear and the second bevel gear are meshed with each other, the guide post is symmetrically arranged on two sides of the rotating disc, one end of the threaded rod extends into the connecting plate to be in threaded connection with the connecting plate, and the connecting plate is nested to be attracted into the inner wall of the pipe body.

Preferably, the front end of the suction pipe body is slidably provided with a moving block, limiting blocks are equidistantly arranged on the inner wall of the moving block, and the limiting blocks are vertically symmetrical relative to the horizontal middle line of the moving block.

Preferably, the front end of the moving block is rotatably provided with a movable plate, the surface of the moving block is provided with equidistant tooth blocks in an up-down symmetrical mode, the moving block is fixedly provided with a connecting block, and the connecting block is provided with a fixing ring.

Preferably, the fixed ring is fixedly provided with a rotary gear, the rotary gear is meshed with the tooth blocks, the fixed ring is connected with an adsorption head, negative pressure holes are uniformly distributed on the inner wall of the adsorption head, and the left and right adjacent adsorption heads are fixedly connected through rod pieces.

Preferably, the inside of movable block is provided with the hydro-cylinder one, the hydro-cylinder one has the piston through first movable mounting of extrusion rod, the outside of extrusion rod one is encircleed and is had compression spring, the liquid outlet setting of seting up on the hydro-cylinder one is at the front end of movable block, the hose has been cup jointed in the liquid outlet outside, the upper end and the fly leaf mutual butt of extrusion rod one.

Preferably, the inside of adsorbing the head is through spring and slider movable mounting drainage tube, the inside of adsorbing the head is provided with hydro-cylinder two, the inside movable mounting of hydro-cylinder two has extrusion rod two.

Preferably, an oil inlet of the second oil cylinder is connected with the hose, and one end of the second extrusion rod positioned at the outer side of the second oil cylinder is abutted against the tail end of the drainage tube.

Compared with the prior art, the invention has the beneficial effects that:

1. through combining the suction tube body and the expansion plate into one instrument, single instrument replaces multi-instrument operation, so that the collision risk of incision instruments is reduced, meanwhile, the movable rod moves forwards and backwards in the suction tube body to drive the engagement of bevel gears in the tube, so that the expansion plate expands and contracts under the action of the threaded rod, an operator can adjust the expansion size of the expansion plate only by pressing the shifting block, zhang Geda of the expansion plate can be quickly adjusted in the operation process, the thickness of different blood vessel walls in a human body is adapted, and doctors can conveniently and quickly go deep into a patient;

2. When the movable rod reaches the affected part, the first lug on the movable rod is separated from the sliding groove in the rotating disc by rotating the movable rod, at the moment, the second lug at the front end of the movable rod is mutually abutted with the limiting block in the moving block, so that the movable rod is released from being clamped with the rotating disc, and the moving block is pushed to move back and forth in the moving process of the movable rod, so that the expanding plate is expanded at the affected part through self-locking of the threaded rod, the expanding angle of the adsorption head is adjusted by pressing the shifting block, and further lymph nodes with different sizes are treated, and the subsequent adsorption is facilitated;

3. In the process of adjusting the opening size of the adsorption head, the tail end of the adsorption head, which is continuously deviated up and down, continuously extrudes the movable plate, the deviated movable plate pushes the extrusion rod I at the lower end, so that hydraulic oil in the oil rod I is conveyed into the oil cylinder II through a hose, the extrusion rod II on the oil cylinder II pushes the drainage tube to change the position, and the drainage tube can be attached to an operation position no matter how the position of the adsorption head is changed, and blood in the operation process is rapidly absorbed.

Drawings

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

FIG. 2 is a schematic view of the suction tube of the present invention;

FIG. 3 is a schematic view of the overall structure of the movable rod of the present invention;

FIG. 4 is a schematic view of the bottom construction of the shifting block of the present invention;

FIG. 5 is a schematic view of the structure of the movable rod and the rotary plate of the present invention;

FIG. 6 is a schematic view of the structure of the movable rod and the movable block according to the present invention;

FIG. 7 is a schematic diagram of a connection structure of a rotating disc and an opening plate according to the present invention;

FIG. 8 is a schematic diagram of the structure of the suction head and the moving block according to the present invention;

FIG. 9 is a schematic cross-sectional view of the adsorption head of the present invention.

In the figure, 1, a suction tube body; 2, a shifting block, 21, a connecting rod I, 22, a torsion spring, 3, a movable rod, 31, a first protruding block, 32, a second protruding block, 33, a fixed block, 4, a supporting component, 41, a supporting block, 42, a telescopic rod, 43, a rotating disc, 44, a sliding block, 45, a sliding groove, 5, a second connecting rod, 6, a guide pillar, 61, a spiral groove, 7, a first bevel gear, 8, a connecting plate, 9, a spreader plate, 10, a threaded rod, 11, a second bevel gear, 12, a moving block, 1201, a limiting block, 1202, a movable plate, 1203, a tooth block, 1204, a connecting block, 13, an adsorption head, 1301, a negative pressure hole, 1302, a fixed ring, 1303, a rotating gear, 14, a drainage tube, 15, a liquid outlet, 16, a cylinder I, 17, a pressing rod I, 1701, a pressure spring, 1702, a piston, 18, a hose, 19, a cylinder II, 20, and a pressing rod II.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-9, the invention provides a technical scheme, which comprises a suction tube body 1, wherein a shifting block 2 is rotatably arranged at the bottom of the rear end of the suction tube body 1 through a first connecting rod 21 and a torsion spring 22, a supporting component 4 is arranged in the suction tube body 1, a movable rod 3 is rotatably arranged in the suction tube body 1 through the supporting component 4, a first bump 31 and a second bump 32 are symmetrically fixed at the outer side of the movable rod 3, two fixed blocks 33 are sleeved at the rear end of the movable rod 3, and the two fixed blocks 33 are positioned at the front end and the rear end of the first connecting rod 21;

The support component 4 comprises a support block 41 fixedly mounted on the inner wall of the suction pipe body 1, a telescopic rod 42 is fixedly mounted on the support block 41, the extending end of the telescopic rod 42 is connected with a rotating disc 43, symmetrical sliding blocks 44 are fixedly mounted on the rotating disc 43, a sliding groove 45 is formed in the rotating disc 43, a connecting rod II 5 is mounted in the suction pipe body 1 through protruding plate penetrating limiting rotation, a first bevel gear 7 is fixedly mounted at the front end of the connecting rod II 5, a guide pillar 6 is fixedly mounted at the tail end of the connecting rod II, a spiral groove 61 is formed in the guide pillar 6, a connecting plate 8 is mounted on the outer side of the suction pipe body 1, a supporting plate 9 is fixedly mounted at the outer end of the connecting plate 8, a threaded rod 10 is mounted in the suction pipe body 1 in internal rotation, a second bevel gear 11 is fixedly mounted on the threaded rod 10, and an adsorption head 13 is arranged at the front end of the suction pipe body 1.

As an embodiment of the present invention, the first bump 31 on the movable rod 3 is disposed in the sliding groove 45 of the rotating disc 43, the movable rod 3 is clamped with the rotating disc 43 through the first bump 31 and the sliding groove 45, and the outer ends of the sliding blocks 44 at two ends of the rotating disc 43 are disposed in the spiral groove 61;

As one embodiment of the invention, the guide post 6 and the first bevel gear 7 form an integrated structure through the second connecting rod 5, the first bevel gear 7 and the second bevel gear 11 are meshed with each other, the guide post 6 is symmetrically arranged at two sides of the rotating disc 43, one end of the threaded rod 10 extends into the connecting plate 8 to be connected with the threaded rod, and the connecting plate 8 is nested in the inner wall of the suction tube body 1;

The movable rod 3 is pushed to move back and forth in the suction tube body 1 by pressing the shifting block 2, so that the movable rod 3 drives the rotating disc 43 to move back and forth in the suction tube body 1 through the first projection 31 arranged in the sliding groove 45, meanwhile, the rotating disc 43 moves, meanwhile, the sliding blocks 44 fixedly arranged on two sides of the rotating disc 43 are arranged on the guide post 6 to move along the track in the spiral grooves 61, so that the guide post 6 is pushed to rotate, the guide post 6 can drive the threaded rod 10 and the connecting plate 8 to move in a threaded manner through the meshing between the first bevel gear 7 and the second bevel gear 11, the connecting plate 8 slides back and forth on the inner wall of the suction tube body 1, the opening and closing of the opening plate 9 are changed, a doctor can conveniently open blood vessels, and a patient can be more quickly opened.

As one embodiment of the invention, the front end of the suction tube body 1 is slidably provided with a moving block 12, the inner wall of the moving block 12 is equidistantly provided with a limiting block 1201, and the limiting block 1201 is vertically symmetrical about the horizontal middle line of the moving block 12;

as an implementation mode of the invention, a movable plate 1202 is rotatably arranged at the front end of a movable block 12, equidistant tooth blocks 1203 are symmetrically arranged on the surface of the movable block 12 up and down, a connecting block 1204 is fixedly arranged on the movable block 12, and a fixed ring 1302 is arranged on the connecting block 1204;

As an embodiment of the present invention, a rotary gear 1303 is fixedly mounted on a fixed ring 1302, the rotary gear 1303 is meshed with a tooth 1203, an adsorption head 13 is connected to the fixed ring 1302, negative pressure holes 1301 are uniformly distributed on the inner wall of the adsorption head 13, and the adsorption heads 13 adjacent to each other from left to right are fixedly connected through a rod;

the first lug 31 is separated from the clamping connection with the rotating disc 43 when the movable rod 3 is rotated, at the moment, the front-back movement of the movable rod 3 does not drive the rotating disc 43 to move forwards and backwards any more, at the same time, the second lug 32 on the movable rod 3 is contacted with the limiting block 1201 inside the movable block 12, at the moment, when the movable rod 3 is driven to move by pressing the shifting block 2, the movable block 12 is pushed to move forwards and backwards, and the opening size of the adsorption head 13 is changed by the meshing of the tooth block 1203 on the movable block 12 and the rotating gear 1303, so that the adsorption head 13 can adsorb lymph nodes of affected parts conveniently, and subsequent operation is facilitated

As an implementation mode of the invention, a first oil cylinder 16 is arranged in the moving block 12, the first oil cylinder 16 is movably provided with a piston 1702 through a first extrusion rod 17, a pressure spring 1701 is arranged around the outer side of the first extrusion rod 17, a liquid outlet 15 formed in the first oil cylinder 16 is arranged at the front end of the moving block 12, a hose 18 is sleeved on the outer side of the liquid outlet 15, and the upper end of the first extrusion rod 17 is mutually abutted with a movable plate 1202;

As an implementation mode of the invention, a drainage tube 14 is movably arranged in the adsorption head 13 through a spring and a sliding block, a second oil cylinder 19 is arranged in the adsorption head 13, and a second extrusion rod 20 is movably arranged in the second oil cylinder 19;

as one implementation mode of the invention, an oil inlet of the second oil cylinder 19 is connected with the hose 18, and one end of the second extrusion rod 20 positioned outside the second oil cylinder 19 is abutted against the tail end of the drainage tube 14.

The suction tube body 1 is fed into the affected part, the inner wall of a blood vessel is complicated and changeable, the movable rod 3 is driven to move forwards and backwards in the suction tube body 1 by pressing the shifting block 2, the first lugs 31 fixed on two sides of the movable rod 3 are clamped in the sliding grooves 45 formed in the rotating disc 43 in the process of moving forwards and backwards, the rotating disc 43 is driven to move synchronously, one end of the sliding blocks 44 fixedly arranged at two ends of the sliding blocks moves along the spiral grooves 61 formed in the guide post 6 in the process of moving forwards and backwards of the rotating disc 43, so that the guide post 6 is pushed to rotate, the rotating guide post 6 drives the first bevel gear 7 to rotate through the second connecting rod 5, the rotating first bevel gear 7 and the second bevel gear 11 are meshed to move, the second bevel gear 11 is driven to rotate, and the fixedly arranged threaded rod 10 is driven to rotate, and further the threaded rod 10 cannot rotate to move upwards and downwards along the threaded rod 10 in the process of rotating, so that the push plate 9 can be opened and the thickness of the blood vessel wall of the blood vessel can be controlled to reach the affected part Zhang Geda according to different closing thicknesses of the doctor, and the patient can be more controlled by the doctor;

When reaching the affected part, the movable rod 3 is rotated by a quarter circle, so that the first projection 31 fixedly installed on the movable rod moves along the sliding groove 45 and is separated from the upper notch of the rotating disc 43, meanwhile, the second projection 32 at the front end of the movable rod 3 is mutually clamped with the limiting block 1201 in the inner wall of the movable block 12, at the moment, the movable rod 3 of the movable block 2 is pressed to push the movable block 12 to move forwards and backwards, and the tooth block 1203 on the movable block 12 and the rotating gear 1303 are engaged to move, so that the opening size of the adsorption head 13 is changed, lymph nodes with different sizes can be better attached, lymph nodes at the affected part can be adsorbed more quickly, and subsequent operation cutting is facilitated;

When the suction head 13 is adjusted for Zhang Kaida hours, if the position of the suction head 13 is changed, along with the rotation of the suction head 13 on the fixed ring 1302, the tail end of the suction head is used for extruding the movable plate 1202, so that the movable plate 1202 is deviated in position, the deviated movable plate 1202 is used for pressing down the issued extruding rod I17, hydraulic oil in the oil cylinder I16 is transmitted into the oil cylinder II 19 through the hose 18 by the piston 1702, the extruding rod II 20 on the oil cylinder II 19 is used for pushing the drainage tube 14 to move outwards along with the entering of the hydraulic oil, so that the position of the suction head 13 is deviated in real time, the drainage tube 14 is always tightly attached to an affected part, blood seepage generated in the operation process is absorbed, after the suction head 13 is reset, the hydraulic oil is re-drawn into the oil cylinder I16 under the cooperation of the extruding rod I17 and the pressure spring 1701, and the drainage tube 14 is reset under the action of the spring and the sliding block.

In the description of the present invention, unless otherwise indicated, the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., refer to the orientation or positional relationship as indicated on the drawings, which are well known to those skilled in the art, merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and for example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims

1. A lymph node suction fixer, comprising a suction tube body (1), characterized in that: a shift block (2) is rotatably mounted on the bottom of the rear end of the suction tube body (1) via a connecting rod (21) and a torsion spring (22), a support assembly (4) is provided inside the suction tube body (1), a movable rod (3) is rotatably mounted inside the suction tube body (1) via the support assembly (4), a convex block (31) and a convex block (32) are symmetrically fixed on the outer side of the movable rod (3), and two fixing blocks (33) are sleeved on the rear end of the movable rod (3), and the two fixing blocks (33) are located at the front and rear ends of the connecting rod (21);

The support assembly (4) includes a support block (41) fixedly mounted on the inner wall of the suction tube body (1), a telescopic rod (42) fixedly mounted on the support block (41), the protruding end of the telescopic rod (42) is connected to a rotating disk (43), a symmetrical sliding block (44) fixedly mounted on the rotating disk (43), and a sliding groove (45) is provided inside the rotating disk (43), and a connecting rod 2 (5) is installed inside the suction tube body (1) through a protruding plate to limit rotation, a first bevel gear (7) is fixedly mounted on the front end of the connecting rod 2 (5), and a guide column (6) is fixedly mounted on the tail end of the connecting rod 2 (5), and a spiral The suction tube body (1) is provided with a connecting plate (8) on the outside, and a support plate (9) is fixed to the outer end of the connecting plate (8). The suction tube body (1) is provided with a threaded rod (10) for rotation inside, and a second bevel gear (11) is fixed on the threaded rod (10). The front end of the suction tube body (1) is provided with an adsorption head (13). The upper protrusion (31) of the movable rod (3) is provided in the sliding groove (45) of the rotating disk (43). The movable rod (3) is connected to the rotating disk (43) through the protrusion (31) and the sliding groove (45). The outer ends of the sliding blocks (44) at both ends of the rotating disk (43) are provided in the spiral groove (61). The guide column (6) forms an integrated structure with the first bevel gear (7) through the second connecting rod (5), and the first bevel gear (7) and the second bevel gear (11) are meshed with each other. The guide column (6) is symmetrically arranged on both sides of the rotating disk (43). One end of the threaded rod (10) extends into the interior of the connecting plate (8) and is threadedly connected to it. The connecting plate (8) is nested in the inner wall of the suction tube body (1). A moving block (12) is slidably installed at the front end of the suction tube body (1). A limiting block (1201) is equidistantly arranged on the inner wall of the moving block (12). The limiting block (1201) is symmetrical about the horizontal center line of the moving block (12). The moving block (1 2) is rotatably mounted with a movable plate (1202) at the front end, and equidistant tooth blocks (1203) are symmetrically arranged on the surface of the moving block (12) above and below, and a connecting block (1204) is fixedly mounted on the moving block (12), and a fixing ring (1302) is mounted on the connecting block (1204), and a rotating gear (1303) is fixedly mounted on the fixing ring (1302), and the rotating gear (1303) and the tooth block (1203) are engaged with each other, and an adsorption head (13) is connected to the fixing ring (1302), and negative pressure holes (1301) are evenly distributed on the inner wall of the adsorption head (13), and the adjacent adsorption heads (13) on the left and right are fixedly connected by a rod.

2. A lymph node suction fixer according to claim 1, characterized in that: an oil cylinder (16) is provided inside the movable block (12), the oil cylinder (16) is movably mounted with a piston (1702) through an extrusion rod (17), a pressure spring (1701) is surrounded on the outside of the extrusion rod (17), a liquid outlet (15) opened on the oil cylinder (16) is provided at the front end of the movable block (12), a hose (18) is sleeved on the outside of the liquid outlet (15), and the upper end of the extrusion rod (17) is in contact with the movable plate (1202).

3. A lymph node suction and fixation device according to claim 1, characterized in that: a drainage tube (14) is movably installed inside the adsorption head (13) through a spring and a slider, a second oil cylinder (19) is provided inside the adsorption head (13), and a second extrusion rod (20) is movably installed inside the second oil cylinder (19).

4. A lymph node suction fixator according to claim 3, characterized in that: the oil inlet of the second oil cylinder (19) is connected to the hose (18), and one end of the second extrusion rod (20) located outside the second oil cylinder (19) abuts against the tail end of the drainage tube (14).