Painless and noninvasive collector for biliary tract and pancreatic duct cells
Technical Field
The invention relates to the technical field of medical equipment, in particular to a painless and noninvasive collector for biliary tract and pancreatic duct cells.
Background
At present, biliary tract cells are obtained by adopting a biliary tract cell brush to obtain biliary tract cells, the biliary tract cell brush is usually composed of a guide wire and bristles at the front end of the guide wire, the guide wire is pushed to the biliary tract cavity of a patient during use, the guide wire carries the bristles to rotate, the bristles rub the biliary tract wall, the cells on the biliary tract wall fall off along with the bristles and adhere to the bristles, however, the bristles at the front end of the guide wire are limited by the diameter of the bristles, so that the quantity of the collected biliary tract cells is limited, and the requirements of acquisition personnel cannot be met.
The compressed sponge saccule is sent into a human body, as shown in fig. 1, the compressed sponge saccule is expanded to adsorb cells to be collected, but when the expanded compressed sponge saccule is adsorbed and collected and moves backwards, the compressed sponge saccule is easily extruded and scratched by the inner shell tube again to influence the collection amount of cell collection, and when the compressed sponge saccule which is adsorbed and collected cells is pulled into the outer shell tube, the liquid adsorbed on the compressed sponge saccule is easy to drip, when the outer shell tube leaves an endoscope, the endoscope and other equipment are easy to corrode and pollute, and an operator needs to pull the elastic push-pull rod all the time by hand after pulling the compressed sponge saccule into the outer shell tube, so that the compressed sponge saccule is prevented from moving forwards again.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a painless and noninvasive collector for biliary tract and pancreatic duct cells.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a biliary tract and painless noninvasive collector of pancreatic duct cell, includes the shell pipe, be provided with the inner shell pipe in the shell pipe, be provided with the compression sponge sacculus in the inner shell pipe, be provided with the elasticity push-and-pull rod that the control compression sponge sacculus removed in the shell pipe, the mounting groove has been seted up to the up end of elasticity push-and-pull rod, and the mounting groove rotation is provided with the card board, is provided with the plastics shell fragment between card board and the mounting groove, and the one end that the mounting groove was kept away from to the card board is provided with the direction ball.
As a further technical scheme of the invention, the plastic elastic sheet is V-shaped, the lower end surface of the clamping plate is provided with a first rotating groove, one end of the plastic elastic sheet, which is close to the first rotating groove, is rotationally connected with the first rotating groove through a rotating column, the bottom of the mounting groove is provided with a second rotating groove, and one end of the plastic elastic sheet, which is close to the second rotating groove, is rotationally connected with the second rotating groove through the rotating column.
As a further technical scheme of the invention, one end of the clamping plate, which is close to the guide ball, is fixedly provided with a first thread column, the guide ball is provided with a first thread groove, and the first thread column is in threaded connection with the first thread groove.
As a further technical scheme of the invention, an arc-shaped groove is formed at the bottom of the mounting groove, and a limiting block is fixed on the side wall of the mounting groove, which is close to the clamping plate.
As a further technical scheme of the invention, a first mounting ring is fixed on the inner side wall of the outer shell tube, a second mounting ring is fixed on the outer side wall of the inner shell tube, an elastic layer is fixed between the first mounting ring and the second mounting ring, and an adsorption sponge layer is fixed on the outer side wall of the elastic layer.
As a further technical scheme of the invention, the outer side wall of the elastic push-pull rod is fixedly provided with a mounting block, the mounting block is fixedly provided with a plug post, the outer side wall of the plug post is fixedly provided with a clamping ring, the inner side wall of the shell tube is fixedly provided with a plastic clamping block, and the plastic clamping block is provided with a clamping groove matched with the plug post and the clamping ring.
As a further technical scheme of the invention, one end of the elastic push-pull rod, which is close to the inner shell tube, is fixedly provided with a connecting column, the outer side wall of the connecting column is sleeved with a connecting shell, the side wall of the compressed sponge saccule is provided with a groove, and the connecting shell is fixedly connected with the compressed sponge saccule through the groove.
As a further technical scheme of the invention, the outer side wall of the connecting column is provided with external threads, the inner side wall of the connecting shell is provided with internal threads, and the connecting column is in threaded connection with the connecting shell.
As a further technical scheme of the invention, when the elastic push-pull rod pushes the compressed sponge saccule to leave the inner shell tube, the compressed sponge saccule is enlarged and expanded.
The invention has the beneficial effects that:
1. through the cooperation of the inner shell pipe that sets up, clamping plate and compression sponge sacculus, reach the assigned position and adsorb after gathering the cell when the compression sponge sacculus of grow, operating personnel pulls the elasticity push-and-pull rod backward, the elasticity push-and-pull rod is at the in-process that moves backward, the lateral wall of clamping plate can contact with the front end lateral wall of inner shell pipe, under the effect of stopper, the clamping plate blocks the inner shell pipe, make the compression sponge sacculus that gathers the cell and can not receive the extrusion of inner shell pipe any more, avoid compressing the cell that adsorbs the collection on the sponge sacculus, by the extrusion of inner shell pipe scratch, influence the collection volume that the cell gathered.
2. Through the cooperation of shell pipe, elastic layer and the absorption sponge layer that sets up, when operating personnel pulled the elasticity push-and-pull rod backward, the elasticity push-and-pull rod can drive the inner shell pipe and remove backward together under the effect of joint board, the inner shell pipe drives the second installation circle and removes backward, the elastic layer is pulled to the second installation circle, the elastic layer produces deformation, the one end that the elastic layer is close to the second installation circle follows the second installation circle and removes together, until the compression sponge sacculus completely enters into the shell intraductal, the tensile elastic layer produces corresponding deformation this moment, because be fixed with the absorption sponge layer on the lateral wall of elastic layer, after the compression sponge sacculus completely enters into the shell intraductal, the absorption sponge layer that follows elastic layer deformation also produces corresponding deformation, and absorption sponge layer contacts with the compression sponge sacculus, wrap up the compression sponge sacculus, prevent that the liquid that adsorbs on the compression sponge sacculus from producing the whereabouts, when the shell pipe leaves the endoscope, cause corruption and pollution to other equipment.
3. Through the cooperation of the plastic clamping block, the installation block and the inserted post that set up, when operating personnel prepare to pull the elastic push-and-pull rod backward, rotate 180 with the elastic push-and-pull rod, then pull the in-process of elastic push-and-pull rod backward, the installation block drives inserted post and clamping circle and is close to the plastic clamping block, until inserted post and clamping circle insert the block in, carry out spacing fixedly to inserted post and clamping circle through the plastic clamping block, thereby carry out spacing fixedly to installation block and elastic push-and-pull rod, at this in-process, the compression sponge sacculus just gets into the shell intraductally exactly, operating personnel need not pull the elastic push-and-pull rod by hand always again this moment, prevent that the compression sponge sacculus from moving forward again, the convenience operating personnel uses.
4. Through the cooperation of spliced pole, coupling shell and the elasticity push-and-pull rod that sets up, accomplish the cell collection task and take off the back from the endoscope when this collector, promote the elasticity push-and-pull rod once more, release the compression sponge sacculus that will collect the cell from the shell intraductal, then operating personnel rotates the compression sponge sacculus, can take off it from the spliced pole, then will compress the sponge sacculus and shift into the laboratory vessel and detect, convenient operation, the practicality is strong.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic view of the external structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the outer shell tube according to the present invention;
FIG. 4 is a schematic diagram showing the internal structure of the outer shell tube according to the present invention;
FIG. 5 is a schematic view of the internal structure of the outer shell tube according to the present invention;
FIG. 6 is a schematic view showing the internal structure of the installation groove in the present invention;
FIG. 7 is a schematic diagram showing the connection between the clamping plate and the plastic spring plate in the present invention;
FIG. 8 is a schematic illustration of the connection of the housing tube to the first mounting collar of the present invention;
FIG. 9 is a schematic diagram of the connection of a mounting block to a post in accordance with the present invention;
FIG. 10 is a schematic diagram of the connection post to the connection housing in the present invention.
In the figure: 1. a housing tube; 2. an inner shell tube; 3. compressing the sponge balloon; 4. an elastic push-pull rod; 5. a mounting groove; 6. a clamping plate; 7. a plastic spring plate; 8. a guide ball; 9. a first rotating groove; 10. a second rotating groove; 11. a first threaded post; 12. an arc-shaped groove; 14. a first mounting ring; 15. a second mounting ring; 16. an elastic layer; 18. a mounting block; 19. inserting a column; 20. a clamping ring; 21. a plastic clamping block; 22. a connecting column; 23. and connecting the shells.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 2, 3 and 4, a painless and noninvasive collector for biliary and pancreatic duct cells comprises an outer shell tube 1, wherein an inner shell tube 2 is arranged in the outer shell tube 1, a compressed sponge balloon 3 is arranged in the inner shell tube 2, an elastic push-pull rod 4 for controlling the movement of the compressed sponge balloon 3 is arranged in the outer shell tube 1, when the elastic push-pull rod 4 pushes the compressed sponge balloon 3 to leave the inner shell tube 2, the compressed sponge balloon 3 is enlarged and expanded, the enlarged and expanded compressed sponge balloon 3 is used for adsorbing cells to be collected, when the outer shell tube 1 enters a human body along with an endoscope, an operator pushes the elastic push-pull rod 4 forwards to push the compressed sponge balloon 3 to leave the inner shell tube 2, and the compressed sponge balloon 3 is pushed to a designated position for cell collection.
Referring to fig. 4, 5 and 6, the upper end face of the elastic push-pull rod 4 is provided with a mounting groove 5, a clamping plate 6 is rotationally arranged in the mounting groove 5, a plastic elastic sheet 7 is arranged between the clamping plate 6 and the mounting groove 5, one end of the clamping plate 6, which is far away from the mounting groove 5, is provided with a guide ball 8, when an operator pushes the elastic push-pull rod 4 to move forwards, the elastic layer 16 is blocked by the inner side wall of the outer shell tube 1, so that the elastic layer 16 and the inner shell tube 2 cannot move outside the outer shell tube 1, the elastic push-pull rod 4 pushes the compressed sponge balloon 3 to move forwards, in the process of moving forwards the elastic push-pull rod 4, the outer side wall of the clamping plate 6 and the outer side wall of the guide ball 8 are sequentially contacted with the inner side wall of the inner shell tube 2, the clamping plate 6 is turned towards the direction close to the mounting groove 5 under the action of force, in the turning process of the clamping plate 6 can squeeze the plastic elastic sheet 7, and after the clamping plate 6 and the guide ball 8 sequentially pass through the inner shell tube 2, the clamping plate 6 is turned towards the direction far away from the mounting groove 5 under the action of the plastic elastic sheet 7, and the clamping plate 6 and the guide ball 8 is in a certain angle with the elastic rod 4.
Referring to fig. 4, after the expanded compressed sponge balloon 3 reaches a designated position and adsorbs collected cells, an operator pulls the elastic push-pull rod 4 backwards, the side wall of the clamping plate 6 contacts with the front end side wall of the inner shell tube 2 in the process of moving backwards of the elastic push-pull rod 4, and under the action of the limiting block, the clamping plate 6 clamps the inner shell tube 2, so that the compressed sponge balloon 3 after collecting cells is not extruded by the inner shell tube 2 any more, the cells adsorbed and collected on the compressed sponge balloon 3 are prevented from being extruded and scraped by the inner shell tube 2, and the collection amount of cell collection is affected.
Referring to fig. 6 and 7, the plastic spring 7 is V-shaped, make the better atress of plastic spring 7, first rotation groove 9 has been seted up to the lower terminal surface of clamping plate 6, the one end that plastic spring 7 is close to first rotation groove 9 is rotated through the spliced pole and is connected with first rotation groove 9, second rotation groove 10 has been seted up to the bottom of mounting groove 5, the one end that plastic spring 7 is close to second rotation groove 10 is also rotated through spliced pole and second rotation groove 10, through the cooperation of the first rotation groove 9 that sets up, the spliced pole of second rotation groove 10, make plastic spring 7 when receiving the extrusion, can carry out corresponding deformation, avoid the both ends of plastic spring 7 to be crushed, influence the deformation recovery effect of plastic spring 7.
Referring to fig. 4 and 7, the first threaded column 11 is fixed at one end of the clamping plate 6 near the guide ball 8, the first threaded groove is formed in the guide ball 8, the first threaded column 11 is in threaded connection with the first threaded groove, through the guide ball 8, the elastic push-pull rod 4 is used for driving the compressed sponge balloon 3 to move in a human body, the tail end of the clamping plate 6 is prevented from being scratched to organs of the human body in the moving process, the compressed sponge balloon 3 and the clamping plate 6 move in the human body more smoothly under the guiding action of the guide ball 8, the arc-shaped groove 12 is formed in the bottom of the mounting groove 5, when the clamping plate 6 is overturned with the guide ball 8 to be close to the mounting groove 5, the arc-shaped groove 12 is used for preventing the problem that the guide ball 8 is mutually abutted with the mounting groove 5, the clamping plate 6 cannot pass through the inner shell tube 2, the limiting block is fixed on the side wall of the mounting groove 5 near the clamping plate 6, and the problem that the clamping plate 6 cannot be clamped in the inner shell tube 2 is prevented.
Referring to fig. 4, fig. 5 and fig. 8, a first mounting ring 14 is fixed on the inner side wall of the outer shell tube 1, a second mounting ring 15 is fixed on the outer side wall of the inner shell tube 2, an elastic layer 16 is fixed between the first mounting ring 14 and the second mounting ring 15, an adsorption sponge layer is fixed on the outer side wall of the elastic layer 16, after the expanded compression sponge balloon 3 reaches a designated position and adsorbs collected cells, an operator pulls the elastic push-pull rod 4 backwards, the elastic push-pull rod 4 is under the action of the clamping plate 6, the inner shell tube 2 is driven to move backwards together, the inner shell tube 2 drives the second mounting ring 15 to move backwards, the second mounting ring 15 pulls the elastic layer 16, the elastic layer 16 deforms, one end of the elastic layer 16 close to the second mounting ring 15 moves together with the second mounting ring 15 until the compression sponge balloon 3 completely enters the outer shell tube 1, at the moment, the stretched elastic layer 16 deforms correspondingly, and after the compression sponge balloon 3 completely enters the outer shell tube 1, the elastic layer 16 also deforms correspondingly, the sponge layer is compressed with the sponge layer 3 when the compression sponge balloon is contacted with the sponge balloon 3, and the sponge balloon is prevented from polluting the compression device, and the sponge balloon is prevented from being polluted by the compression device.
Referring to fig. 4, 5 and 9, the installation block 18 is fixed on the outer side wall of the elastic push-pull rod 4, the inserting column 19 is fixed on the installation block 18, the clamping ring 20 is fixed on the outer side wall of the inserting column 19, the plastic clamping block 21 is fixed on the inner side wall of the shell tube 1, the clamping grooves matched with the inserting column 19 and the clamping ring 20 are formed in the plastic clamping block 21, in an initial state, the installation block 18 is located at the bottom of the elastic push-pull rod 4, the installation block 18 collides with the plastic clamping block 21 when an operator pushes the elastic push-pull rod 4, the using effect of the collector is influenced, after the expanded compressed sponge balloon 3 reaches a designated position and absorbs collected cells, the elastic push-pull rod 4 is rotated 180 degrees, then the installation block 18 drives the inserting column 19 and the clamping ring 20 to be close to the plastic clamping block 21 in the process of the elastic push-pull rod 4 until the inserting column 19 and the clamping ring 20 are inserted into the clamping grooves, the insertion column 19 and the clamping ring 20 are fixed through the plastic clamping block 21, and the installation block 18 are prevented from being pushed by the plastic clamping block 21, the installation block 18 is prevented from being pushed by the operator until the operator can completely compressing the sponge balloon 3 in the process, and the sponge balloon 3 is prevented from being compressed by the operator to the elastic push-pull rod 3.
Referring to fig. 10, a connecting column 22 is fixed at one end of the elastic push-pull rod 4, which is close to the inner shell tube 2, a connecting shell 23 is sleeved on the outer side wall of the connecting column 22, a groove is formed in the side wall of the compressed sponge balloon 3, the connecting shell 23 is fixedly connected with the compressed sponge balloon 3 through the groove, an external thread is formed in the outer side wall of the connecting column 22, an internal thread is formed in the inner side wall of the connecting shell 23, the connecting column 22 is in threaded connection with the internal thread through the matching of the external thread and the internal thread, and the connecting shell 23 is in threaded connection with the connecting column 22.
When the invention is used, after the endoscope enters a human body, an outer shell tube 1 reaches a designated position, an operator can push an elastic push-pull rod 4 forward to push a compressed sponge balloon 3 to leave an inner shell tube 2, when the compressed sponge balloon 3 leaves the inner shell tube 2, the compressed sponge balloon 3 becomes larger and expands, the operator continues to push the elastic push-pull rod 4 to push the compressed sponge balloon 3 to the designated position for cell collection, in the process of forward movement of the elastic push-pull rod 4, the outer side wall of a clamping plate 6 and the outer side wall of a guide ball 8 are sequentially contacted with the inner side wall of the inner shell tube 2, the clamping plate 6 is stressed and overturned towards the direction close to an installation groove 5, in the process of overturning, the clamping plate 6 can squeeze a plastic elastic sheet 7, and after the clamping plate 6 and the guide ball 8 sequentially pass through the inner shell tube 2, the clamping plate 6 overturns towards the direction far away from the installation groove 5 under the action of the plastic elastic sheet 7, the clamping plate 6 and the guide ball 8 form a certain angle with the elastic push-pull rod 4, when the expanded compressed sponge saccule 3 reaches a designated position and absorbs collected cells, an operator pulls the elastic push-pull rod 4 backwards, the side wall of the clamping plate 6 contacts with the front end side wall of the inner shell tube 2 in the backward moving process of the elastic push-pull rod 4, the clamping plate 6 clamps the inner shell tube 2 under the action of a limiting block, the compressed sponge saccule 3 after collecting cells can not be extruded by the inner shell tube 2 any more, the collected cells adsorbed on the compressed sponge saccule 3 are prevented from being extruded and scraped by the inner shell tube 2, the collection amount of cell collection is influenced, when the operator pulls the elastic push-pull rod 4 backwards, the elastic push-pull rod 4 drives the inner shell tube 2 to move backwards together under the action of the clamping plate 6, the inner shell tube 2 drives the second mounting ring 15 to move backwards, the elastic layer 16 is pulled by the second mounting ring 15, the elastic layer 16 deforms, one end of the elastic layer 16, which is close to the second mounting ring 15, moves along with the second mounting ring 15 until the compressed sponge balloon 3 completely enters the outer shell tube 1, the stretched elastic layer 16 deforms correspondingly, and as the adsorption sponge layer is fixed on the outer side wall of the elastic layer 16, after the compressed sponge balloon 3 completely enters the outer shell tube 1, the adsorption sponge layer deformed along with the elastic layer 16 deforms correspondingly, and contacts with the compressed sponge balloon 3 to wrap the compressed sponge balloon 3, so as to prevent the liquid adsorbed on the compressed sponge balloon 3 from dripping, when the outer shell tube 1 leaves the endoscope, the endoscope and other equipment are corroded and polluted, after the expanded compressed sponge balloon 3 reaches a designated position and adsorbs collected cells, an operator can rotate the elastic push-pull rod 4 by 180 degrees and then pull the elastic push-pull rod 4 backwards, in the process, the mounting block 18 drives the inserting column 19 and the clamping ring 20 to be close to the plastic clamping block 21 until the inserting column 19 and the clamping ring 20 are inserted into the clamping groove, the inserting column 19 and the clamping ring 20 are limited and fixed through the plastic clamping block 21, so that the mounting block 18 and the elastic push-pull rod 4 are limited and fixed, in the process, the compressed sponge saccule 3 just completely enters the shell tube 1, at the moment, the operator does not need to pull the elastic push-pull rod 4 all the time by hand any more, the compressed sponge saccule 3 is prevented from moving forwards again, the use of the operator is facilitated, after the collector completes the cell collecting task and is taken down from the endoscope, the elastic push-pull rod 4 is pushed again, the compressed sponge saccule 3 after the cells are collected is pushed out from the shell tube 1, then operating personnel rotate compression sponge sacculus 3, can take off it from spliced pole 22, then will compress sponge sacculus 3 and shift into the laboratory vessel and detect, convenient operation, the practicality is strong.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.