CN113855194A - Positioning device of disposable thyroid puncture device - Google Patents
Positioning device of disposable thyroid puncture device Download PDFInfo
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- CN113855194A CN113855194A CN202111310781.0A CN202111310781A CN113855194A CN 113855194 A CN113855194 A CN 113855194A CN 202111310781 A CN202111310781 A CN 202111310781A CN 113855194 A CN113855194 A CN 113855194A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a positioning device of a disposable thyroid puncture outfit, which comprises two groups of positioning plates, wherein a protective plate is fixedly connected between the two groups of positioning plates, the outer wall of each positioning plate is provided with an arc-shaped groove, the inner wall of the arc-shaped groove at the front side is connected with a first slide block in a sliding way, the inner wall of the arc-shaped groove at the rear side is connected with a second slide block in a sliding way, the bottom of each positioning plate is of an arc-shaped structure, the first slide block is driven to synchronously move leftwards and rightwards through the periodic left and right sliding of the first slide block on the inner wall of the arc-shaped groove, the first slide block is of an arc-shaped motion track and further drives a limiting shell to synchronously move, as the neck of a person is also of a cylindrical structure, the distance between the lower surface of the limiting shell and the surface of the neck of the person keeps smaller difference, and a driving motor is closed after the lower surface of the limiting shell moves to the same plane to be detected, at the moment, the limiting shell does not move any more, and the angle of the puncture outfit shell in the left and right directions is adjusted.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a positioning device of a disposable thyroid puncture outfit.
Background
Thyrocentesis is a method used to diagnose nodular thyroid disease. Fine needle aspiration biopsy of the thyroid gland has now been identified as a highly accurate diagnostic method. In the traditional thyroid gland puncture, a disposable thyroid gland puncture device is needed to be used for carrying out diagnosis on a pathological specimen obtained by thyroid gland nodule puncture, a needle head of a syringe enters a puncture sampling position, and then a certain amount of thyroid gland nodule detection bodies are extracted.
When the existing thyroid puncture outfit is used for puncturing operation again, the puncture needle head cannot be adjusted to an accurate position, so that certain error exists when the puncture needle head enters the neck, and certain pain is brought to patients.
Disclosure of Invention
The invention aims to provide a positioning device of a disposable thyroid puncture outfit, which has the advantages of accurately adjusting the position of a puncture needle head, stabilizing puncture and automatically extracting thyroid nodule cells in the process of puncture, and solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a positioner of disposable thyroid gland puncture ware, includes the locating plate, the locating plate is provided with two sets ofly, and is two sets of fixedly connected with guard plate between the locating plate, the arc wall has been seted up to the outer wall of locating plate, the front side the inner wall sliding connection of arc wall has slider one, the rear side the inner wall sliding connection of arc wall has slider two, the bottom of locating plate is the arc structure, the front side the positive fixed mounting of locating plate has driving motor, driving motor's output fixedly connected with commentaries on classics board, the front of commentaries on classics board is kept away from driving motor's one end dead axle and is rotated and be connected with the cylinder, the front side the front dead axle of locating plate is rotated and is connected with and dials the board, dial the outer wall of board and seted up the straight notch, the inner wall sliding connection of cylinder and straight notch, dial the top of board and the outer wall fixed connection of slider one.
Preferably, the back fixedly connected with slide one of slider one, the inner wall sliding connection of slide one has spacing casing, the back swing joint of spacing casing has the screw rod, the one end that spacing casing was kept away from to the screw rod runs through the outer wall of slide one and slider two, just screw rod and slider two pass through threaded connection, the rear end fixedly connected with handle of screw rod.
Preferably, the inner wall of the limiting shell is slidably connected with a circular plate, an object placing groove is formed in the middle of the upper surface of the circular plate, and a first spring is arranged between the lower surface of the circular plate and the inner wall of the limiting shell.
Preferably, the equal fixedly connected with slide two of the left and right sides inner wall of spacing casing, the inner wall sliding connection of slide two has slider three, the last fixed surface of plectane is connected with the down tube, slider three, two sets of are run through on the top of down tube the equal fixedly connected with grip block of opposite face of slider three.
Preferably, the inner wall of the article holding groove is sleeved with a puncture device shell, the diameter of the puncture device shell is smaller than the inner diameter of the article holding groove, the outer wall of the puncture device shell is fixedly connected with a support plate, and the diameter of the support plate is larger than the inner diameter of the article holding groove.
Preferably, the inner wall of the puncture device shell is connected with a piston plate in a sliding mode, the top of the piston plate is fixedly connected with a sliding rod, the top end of the sliding rod penetrates through the outer wall of the puncture device shell and is fixedly connected with a pressing plate, and a second spring is arranged between the upper surface of the piston plate and the inner wall of the puncture device shell.
Preferably, the outer wall of the piston plate is provided with a through hole, the inner wall of the through hole is fixedly connected with a collecting cylinder, the bottom end of the collecting cylinder is fixedly connected with a puncture needle head, the bottom end of the puncture needle head penetrates through the bottom of the puncture device shell, and the outer wall of the bottom of the puncture needle head is provided with a sampling hole.
Preferably, both sides have all been seted up spacing hole about the outer wall of puncture ware casing, the downside the inner wall in spacing hole is pegged graft and is had the extrusion piece of T shape structure, the extrusion piece is close to and is provided with spring four between the one side of puncture ware casing and the puncture ware casing, the outer wall swing joint of collecting vessel has the movable rod, the stopper of the one end fixedly connected with trapezium structure of collecting vessel is kept away from to the movable rod, the one side that the stopper is close to puncture ware shells inner wall is the inclined plane, the stopper joint is at the upside spacing downthehole wall, the stopper is close to and is provided with spring three between the one side of collecting vessel and the collecting vessel.
Compared with the prior art, the invention has the following beneficial effects:
1. after the position of the neck where the biopsy body needs to be sucked is determined, the puncture outfit shell is inserted into the limiting shell, at the moment, the bottom of the sampling hole penetrates through the storage groove on the surface of the circular plate, and the support plate does not fall down after falling to the upper surface of the circular plate due to the fact that the diameter of the support plate is larger than the inner diameter of the storage groove, so that the puncture outfit shell is located at the designated height.
2. Starting driving motor this moment, it rotates to drive the commentaries on classics board through driving motor, and then drive the cylinder and slide at the straight flute inner wall, and then drive and dial the board and use the bottom to carry out the periodicity as the axle center and control the deflection, and then drive the slider one at the arc inner wall periodicity horizontal slip, drive the slider one through the slider one at the arc inner wall periodicity horizontal slip and control the removal in step, and be the arc motion orbit, and then drive spacing casing synchronous movement, because people's neck is cylindrical structure equally, make spacing casing when the horizontal motion, the lower surface of spacing casing keeps less difference apart from the interval on people's neck surface, after the lower surface motion of spacing casing extremely waited to examine the coplanar, closing driving motor, spacing casing no longer removes this moment, realize the adjustment to the left and right direction angle of puncture ware casing.
3. When the front and back positions of the puncture outfit shell need to be adjusted, the handle is held and rotated by a hand, the screw rod and the slide block are driven to rotate in a threaded manner, the limiting shell is pushed to slide on the inner wall of the slide seat, the front and back positions of the puncture outfit shell are adjusted, the puncture outfit shell can be accurately moved to a position to be sampled of a neck, when puncture sampling is needed, the pressing plate is pressed down by the hand, the slide rod is pressed down through the pressing plate, the slide rod is driven to slide downwards, the piston plate is pushed to slide downwards, meanwhile, the second spring is stretched, the collecting cylinder and the puncture needle head are driven to synchronously move downwards until the bottom end of the puncture needle head is inserted into a thyroid nodule in the neck of a person, in the process that the piston plate moves downwards, the space above the piston plate in the inner cavity of the puncture outfit shell is in a negative pressure state, and air is pumped through the collecting cylinder and the puncture needle head, at the moment, the outside air flows into the puncture needle head and the collecting barrel from the sampling hole position on the surface of the puncture needle head and is guided into the space position above the piston plate of the inner cavity of the puncture device shell, so that the internal pressure of the puncture device shell is kept constant.
4. When the puncture needle head moves downwards gradually, the sampling hole is plugged by the skin tissue gradually at the moment, so that the outside air cannot enter the puncture needle head, the space above the piston plate of the inner cavity of the shell of the puncture needle is in a negative pressure state again, certain suction is generated, thyroid nodule cells inside the neck are sucked into the puncture needle head and the collecting barrel from the sampling hole, and the function of simultaneously extracting the thyroid nodule cells in the process of thyroid puncture is realized.
5. When the pressing plate is pressed downwards, downward pressure can be brought to the puncture outfit shell, the supporting plate is driven to extrude the circular plate downwards, the circular plate is driven to compress the spring I downwards, the two groups of inclined rods are driven to move downwards synchronously through the downward movement of the circular plate, the inclined rods can slide downwards relative to the inner wall of the sliding block III at the moment, inward extrusion force is brought to the sliding block III, the two groups of sliding blocks III are driven to slide towards each other on the inner walls of the sliding block II respectively, the two groups of clamping plates are driven to move towards each other, the outer wall of the puncture outfit shell positioned between the two groups of clamping plates is clamped, the phenomenon that a sampling hole and a puncture needle head shift downwards in the moving process is prevented, the puncture precision is influenced, and meanwhile, certain pain is brought to a patient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a positioning plate according to the present invention;
FIG. 3 is a schematic view of a rotating plate according to the present invention;
FIG. 4 is a schematic view of a slider according to the present invention;
FIG. 5 is a schematic view of a spacing housing according to the present invention;
FIG. 6 is a schematic structural view of a puncture instrument housing according to the present invention;
FIG. 7 is a schematic view of a circular plate structure according to the present invention;
FIG. 8 is a schematic view of a puncture tip structure according to the present invention;
fig. 9 is a schematic structural diagram of the limiting block of the present invention.
In the figure: 1. positioning a plate; 2. an arc-shaped slot; 3. a first sliding block; 4. a drive motor; 5. rotating the plate; 6. a drum; 7. dialing a plate; 8. a straight notch; 9. a first sliding seat; 10. a second sliding block; 11. a screw; 12. a handle; 13. a limiting shell; 14. a circular plate; 15. a diagonal bar; 16. a second sliding seat; 17. a third sliding block; 18. a clamping plate; 19. a first spring; 20. a storage groove; 21. a puncture instrument housing; 22. a support plate; 23. a piston plate; 24. a slide bar; 25. pressing a plate; 26. a second spring; 27. a collection canister; 28. a puncture needle head; 29. a sampling hole; 30. a movable rod; 31. a limiting block; 32. a third spring; 33. extruding the block; 34. a fourth spring; 35. and (4) a protective plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-3, a positioner of disposable thyroid puncture ware, including locating plate 1, locating plate 1 is provided with two sets ofly, fixedly connected with guard plate 35 between two sets of locating plates 1, arc wall 2 has been seted up to the outer wall of locating plate 1, the inner wall sliding connection of front side arc wall 2 has slider one 3, the inner wall sliding connection of rear side arc wall 2 has slider two 10, the bottom of locating plate 1 is the arc structure, the front fixed mounting of front side locating plate 1 has driving motor 4, driving motor 4's output fixedly connected with commentaries on classics board 5, the front of commentaries on classics board 5 is kept away from the one end dead axle rotation of driving motor 4 and is connected with cylinder 6, the front dead axle rotation of front side locating plate 1 is connected with dials board 7, dial the outer wall of board 7 and seted up straight notch 8, cylinder 6 and straight notch 8's inner wall sliding connection, dial the top of board 7 and the outer wall fixed connection of slider one 3.
The driving motor 4 is started, the rotating plate 5 is driven to rotate through the rotation of the driving motor 4, the roller 6 is further driven to slide on the inner wall of the straight groove opening 8, the shifting plate 7 is further driven to periodically deflect left and right by taking the bottom as an axis, and the sliding block I3 is further driven to periodically slide left and right on the inner wall of the arc-shaped groove 2;
the first sliding block 3 is used for driving the first sliding seat 9 to move left and right synchronously in the periodic leftward and rightward sliding mode on the inner wall of the arc-shaped groove 2, the sliding seat is arc-shaped in motion track, and then the sliding seat drives the limiting shell 13 to move synchronously, and the lower surface of the limiting shell 13 keeps a small difference from the distance between the surface of the neck of a person when the neck of the person moves leftwards and rightwards due to the fact that the neck of the person is of a cylindrical structure.
As shown in fig. 4, a first sliding seat 9 is fixedly connected to the back of the first sliding block 3, a limiting shell 13 is slidably connected to the inner wall of the first sliding seat 9, a screw 11 is movably connected to the back of the limiting shell 13, one end, far away from the limiting shell 13, of the screw 11 penetrates through the outer walls of the first sliding seat 9 and the second sliding block 10, the screw 11 is in threaded connection with the second sliding block 10, and a handle 12 is fixedly connected to the rear end of the screw 11.
When the front position and the rear position of the puncture outfit shell 21 need to be adjusted, the user only needs to hold and rotate the handle 12 by hands, then the screw rod 11 and the second slider 10 are driven to rotate in a threaded manner relatively, the limiting shell 13 is further pushed to slide on the inner wall of the first sliding seat 9, and then the position of the puncture outfit shell 21 in the front-rear direction is adjusted, so that the puncture outfit shell 21 can be accurately moved to the position of a neck to be sampled.
As shown in fig. 7, a circular plate 14 is slidably connected to the inner wall of the limiting casing 13, a storage slot 20 is opened at the middle position of the upper surface of the circular plate 14, and a first spring 19 is arranged between the lower surface of the circular plate 14 and the inner wall of the limiting casing 13.
When the pressing plate 25 is pressed downward, the downward pressure is also applied to the puncture device housing 21, so as to drive the supporting plate 22 to press the circular plate 14 downward, and further drive the circular plate 14 to compress the first spring 19 downward.
As shown in fig. 7, the inner walls of the left and right sides of the limiting housing 13 are fixedly connected with a second sliding seat 16, the inner wall of the second sliding seat 16 is slidably connected with a third sliding block 17, the upper surface of the circular plate 14 is fixedly connected with an inclined rod 15, the top end of the inclined rod 15 penetrates through the third sliding block 17, and the opposite surfaces of the two sets of the third sliding blocks 17 are fixedly connected with a clamping plate 18.
The circular plate 14 moves downwards to drive the two groups of inclined rods 15 to move downwards synchronously, at the moment, the inclined rods 15 can slide downwards relative to the inner wall of the third sliding block 17, a group of inward extrusion force is further brought to the third sliding block 17, the third sliding block 17 is further driven to slide oppositely on the inner wall of the second sliding seat 16 respectively, and then the two groups of clamping plates 18 are driven to move oppositely, the outer wall of the puncture outfit shell 21 positioned between the two groups of clamping plates 18 is clamped, the sampling hole 29 and the puncture needle head 28 are prevented from shifting downwards to generate deviation in the process, the puncture accuracy is prevented from being influenced, and meanwhile, certain pain is brought to a patient.
As shown in fig. 6, the puncture device housing 21 is sleeved on the inner wall of the storage slot 20, the diameter of the puncture device housing 21 is smaller than the inner diameter of the storage slot 20, the outer wall of the puncture device housing 21 is fixedly connected with the support plate 22, and the diameter of the support plate 22 is larger than the inner diameter of the storage slot 20.
When the position of the neck where the biopsy sample needs to be aspirated is determined, the puncture device housing 21 is inserted into the limiting housing 13, and the bottom of the sampling hole 29 passes through the storage slot 20 on the surface of the circular plate 14, and the support plate 22 does not fall down after falling to the upper surface of the circular plate 14 because the diameter of the support plate 22 is larger than the inner diameter of the storage slot 20, so that the puncture device housing 21 is at the designated height.
As shown in fig. 8, a piston plate 23 is slidably connected to the inner wall of the puncture device housing 21, a slide rod 24 is fixedly connected to the top of the piston plate 23, the top end of the slide rod 24 penetrates through the outer wall of the puncture device housing 21 and is fixedly connected with a pressing plate 25, and a second spring 26 is arranged between the upper surface of the piston plate 23 and the inner wall of the puncture device housing 21.
When puncture sampling is needed, the pressing plate 25 is pressed down by a hand, the sliding rod 24 is pressed down through the pressing plate 25, the sliding rod 24 is driven to slide downwards, the piston plate 23 is further driven to slide downwards, meanwhile, the second spring 26 is stretched, and the collecting cylinder 27 and the puncture needle head 28 are further driven to synchronously move downwards until the bottom end of the puncture needle head 28 is inserted into a thyroid nodule in the neck of a person.
As shown in fig. 8, a through hole is formed in the outer wall of the piston plate 23, a collecting cylinder 27 is fixedly connected to the inner wall of the through hole, a puncture needle 28 is fixedly connected to the bottom end of the collecting cylinder 27, the bottom end of the puncture needle 28 penetrates through the bottom of the puncture outfit housing 21, and a sampling hole 29 is formed in the outer wall of the bottom of the puncture needle 28.
When puncture needle 28 moves downwards gradually, skin tissue blocks up sampling hole 29 gradually this moment for inside the unable entering puncture needle 28 of outside air, the space above the piston plate 23 of puncture ware casing 21 inner chamber is in negative pressure state again this moment, and then produces certain suction, inside with the inside thyroid nodule cell of neck from sampling hole 29 position suction puncture needle 28 and collection cylinder 27, realizes the function of thyroid gland puncture in-process extraction thyroid nodule cell simultaneously.
Example two:
as shown in fig. 8, on the basis of the first embodiment, further expansion is performed: spacing hole has all been seted up to both sides about the outer wall of puncture ware casing 21, the inner wall in the spacing hole of downside is pegged graft and is had the extrusion piece 33 of T shape structure, extrusion piece 33 is close to and is provided with four 34 of spring between one side of puncture ware casing 21 and the puncture ware casing 21, the outer wall swing joint of collecting vessel 27 has movable rod 30, the stopper 31 of the one end fixedly connected with trapezium structure of collecting vessel 27 is kept away from to movable rod 30, the one side that stopper 31 is close to puncture ware casing 21 inner wall is the inclined plane, stopper 31 joint is at the spacing downthehole wall of upside, stopper 31 is close to and is provided with three 32 of spring between one side of collecting vessel 27 and the collecting vessel 27.
When the collecting cylinder 27 moves downwards, the movable rod 30 is driven to move downwards synchronously, and further the stop block 31 is driven to move downwards, because the stop block 31 is in a trapezoidal structure, and the surface of the stop block 31 close to the inner wall of the puncture outfit shell 21 is an inclined surface, so that the stopper 31 gradually separates from the stopper hole on the upper side of the surface of the puncture device housing 21 when moving downward, the third spring 32 is arranged to ensure that the stop block 31 is always attached to the inner wall of the shell 21 of the puncture outfit, when the stop block 31 moves downwards to the lower side stop hole, the collecting cylinder 27 does not move downwards any more, because the upper surface of the limiting block 31 is a horizontal plane, the limiting block 31 can be clamped in the limiting hole at the lower side and cannot rebound automatically, so that the collecting cylinder 27 can keep a specified height after descending and cannot rebound, thereby ensuring that the puncture needle head 28 can fully absorb thyroid nodule cells and fully sample;
after the puncture needle head 28 extracts thyroid nodule cells, the puncture outfit shell 21 is pulled out upwards by hand, at the moment, the upper surface of the storage groove 20 is not pressed by the support plate 22 any more, at the moment, the circular plate 14 is pushed to move upwards under the action of elastic potential energy of the first spring 19, and in the same way, the inclined rod 15 is driven to slide upwards, at the same time, the two groups of sliding blocks III 17 start to move backwards, so that the two groups of clamping plates 18 are driven to move backwards, at the moment, the clamping plates 18 do not clamp the puncture outfit shell 21 any more, and the puncture outfit shell 21 is convenient to pull out;
when the extracted thyroid nodule cells need to be taken out, the extrusion block 33 is pressed downwards to drive the extrusion block 33 to extrude the spring IV 34, and the limiting block 31 is pushed out from the inner part of the lower limiting hole, at the moment, the piston plate 23 is pulled to move upwards due to the elastic potential energy action of the spring II 26, the collecting cylinder 27 and the puncture needle head 28 are driven to move upwards, and the limiting block 31 is driven to return to the inner part of the upper limiting hole again;
meanwhile, the piston plate 23 moves upwards to extrude the space above the piston plate 23 in the inner cavity of the puncture outfit shell 21, so that the pressure inside the space is increased, air is introduced into the collecting cylinder 27, thyroid nodule cells pumped into the collecting cylinder 27 are blown out from the sampling hole 29 at the bottom of the puncture needle head 28, and the function of automatically spraying the thyroid nodule cells is realized.
The working principle of the first embodiment of the scheme is as follows: when the positioning device of the disposable thyroid puncture outfit is used, two groups of positioning plates 1 are clamped at the position of the neck of a person, and the bottom parts of the positioning plates 1 are of arc-shaped structures and can be attached to the position of the neck of the person;
after the position of the neck where the biopsy body needs to be sucked is determined, the puncture outfit shell 21 is inserted into the limiting shell 13, the bottom of the sampling hole 29 penetrates through the storage groove 20 on the surface of the circular plate 14, and the support plate 22 does not fall down after falling to the upper surface of the circular plate 14 because the diameter of the support plate 22 is larger than the inner diameter of the storage groove 20, so that the puncture outfit shell 21 is at a designated height;
at the moment, the driving motor 4 is started, the rotating plate 5 is driven to rotate through the rotation of the driving motor 4, the roller 6 is further driven to slide on the inner wall of the straight groove opening 8, the shifting plate 7 is further driven to periodically deflect left and right by taking the bottom as an axis, and the sliding block I3 is further driven to periodically slide left and right on the inner wall of the arc-shaped groove 2;
the first sliding block 3 periodically slides left and right on the inner wall of the arc-shaped groove 2 to drive the first sliding seat 9 to synchronously move left and right and is in an arc-shaped motion track, so that the limiting shell 13 is driven to synchronously move, and the distance between the lower surface of the limiting shell 13 and the surface of the human neck keeps a small difference when the limiting shell 13 moves left and right due to the fact that the human neck is also in a cylindrical structure;
when the lower surface of the limiting shell 13 moves to the same plane to be detected, the driving motor 4 is turned off, and the limiting shell 13 does not move any more at the moment, so that the angle of the puncture outfit shell 21 in the left and right directions can be adjusted;
when the front and rear positions of the puncture outfit shell 21 need to be adjusted, the handle 12 is held and rotated by a hand, the screw rod 11 and the second sliding block 10 are driven to rotate in a threaded manner, the limiting shell 13 is pushed to slide on the inner wall of the first sliding seat 9, and the position of the puncture outfit shell 21 in the front and rear direction is adjusted, so that the puncture outfit shell 21 can be accurately moved to the position of a neck to be sampled;
when puncture sampling is needed, the pressing plate 25 is pressed down by a hand, the sliding rod 24 is pressed down through the pressing plate 25, the sliding rod 24 is driven to slide downwards, the piston plate 23 is further pushed to slide downwards, meanwhile, the second spring 26 is stretched, and the collecting cylinder 27 and the puncture needle head 28 are further driven to synchronously move downwards until the bottom end of the puncture needle head 28 is inserted into a thyroid nodule in the neck of a person;
during the downward movement of the piston plate 23, the space above the piston plate 23 in the inner cavity of the puncture device housing 21 is in a negative pressure state, and further air is pumped through the collection tube 27 and the puncture needle 28, at this time, the outside air flows into the puncture needle 28 and the collection tube 27 from the position of the sampling hole 29 on the surface of the puncture needle 28 and is guided to the position of the space above the piston plate 23 in the inner cavity of the puncture device housing 21, so that the internal pressure of the puncture device housing 21 is kept constant;
when the puncture needle head 28 gradually moves downwards, the skin tissue gradually blocks the sampling hole 29 at the moment, so that outside air cannot enter the puncture needle head 28, the space above the piston plate 23 in the inner cavity of the puncture outfit shell 21 is in a negative pressure state again, certain suction is further generated, thyroid nodule cells in the neck are sucked into the puncture needle head 28 and the collecting barrel 27 from the sampling hole 29, and the function of simultaneously sucking the thyroid nodule cells in the thyroid puncture process is realized;
meanwhile, when the pressing plate 25 is pressed downwards, the downward pressure is also exerted on the puncture outfit shell 21, so that the supporting plate 22 is driven to extrude the circular plate 14 downwards, the circular plate 14 is driven to compress the first spring 19 downwards, the two groups of inclined rods 15 are driven to synchronously move downwards through the downward movement of the circular plate 14, at the moment, the inclined rods 15 slide downwards relative to the inner wall of the third slide block 17, so that a group of inward extrusion forces are exerted on the third slide block 17, the two groups of third slide blocks 17 are driven to respectively slide towards each other on the inner wall of the second slide base 16, so that the two groups of clamping plates 18 are driven to move towards each other, the outer wall of the puncture outfit shell 21 positioned between the two groups of clamping plates 18 is clamped, and the phenomena that the sampling hole 29 and the puncture needle head 28 deviate in the downward moving process, the puncture accuracy is influenced, and a patient is suffered from certain pain are avoided.
Working principle of the second embodiment: when the collecting cylinder 27 moves downwards, the movable rod 30 is driven to move downwards synchronously, and further the stop block 31 is driven to move downwards, because the stop block 31 is in a trapezoidal structure, and the surface of the stop block 31 close to the inner wall of the puncture outfit shell 21 is an inclined surface, so that the stopper 31 gradually separates from the stopper hole on the upper side of the surface of the puncture device housing 21 when moving downward, the third spring 32 is arranged to ensure that the stop block 31 is always attached to the inner wall of the shell 21 of the puncture outfit, when the stop block 31 moves downwards to the lower side stop hole, the collecting cylinder 27 does not move downwards any more, because the upper surface of the limiting block 31 is a horizontal plane, the limiting block 31 can be clamped in the limiting hole at the lower side and cannot rebound automatically, so that the collecting cylinder 27 can keep a specified height after descending and cannot rebound, thereby ensuring that the puncture needle head 28 can fully absorb thyroid nodule cells and fully sample;
after the puncture needle head 28 extracts thyroid nodule cells, the puncture outfit shell 21 is pulled out upwards by hand, at the moment, the upper surface of the storage groove 20 is not pressed by the support plate 22 any more, at the moment, the circular plate 14 is pushed to move upwards under the action of elastic potential energy of the first spring 19, and in the same way, the inclined rod 15 is driven to slide upwards, at the same time, the two groups of sliding blocks III 17 start to move backwards, so that the two groups of clamping plates 18 are driven to move backwards, at the moment, the clamping plates 18 do not clamp the puncture outfit shell 21 any more, and the puncture outfit shell 21 is convenient to pull out;
when the extracted thyroid nodule cells need to be taken out, the extrusion block 33 is pressed downwards to drive the extrusion block 33 to extrude the spring IV 34, and the limiting block 31 is pushed out from the inner part of the lower limiting hole, at the moment, the piston plate 23 is pulled to move upwards due to the elastic potential energy action of the spring II 26, the collecting cylinder 27 and the puncture needle head 28 are driven to move upwards, and the limiting block 31 is driven to return to the inner part of the upper limiting hole again;
meanwhile, the piston plate 23 moves upwards to extrude the space above the piston plate 23 in the inner cavity of the puncture outfit shell 21, so that the pressure inside the space is increased, air is introduced into the collecting cylinder 27, thyroid nodule cells pumped into the collecting cylinder 27 are blown out from the sampling hole 29 at the bottom of the puncture needle head 28, and the function of automatically spraying the thyroid nodule cells is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a positioner of disposable thyroid gland puncture ware, includes locating plate (1), its characterized in that: the positioning plate (1) is provided with two groups, a protection plate (35) is fixedly connected between the two groups of positioning plates (1), an arc-shaped groove (2) is formed in the outer wall of each positioning plate (1), a first slider (3) is connected to the inner wall of the arc-shaped groove (2) at the front side in a sliding manner, a second slider (10) is connected to the inner wall of the arc-shaped groove (2) at the rear side in a sliding manner, the bottom of each positioning plate (1) is of an arc-shaped structure, a driving motor (4) is fixedly installed on the front side of each positioning plate (1), a rotating plate (5) is fixedly connected to the output end of each driving motor (4), a roller (6) is rotatably connected to the front side of each rotating plate (5) at the end far away from the driving motor (4) in a fixed-axis manner, a shifting plate (7) is rotatably connected to the front side of each positioning plate (1), and a straight notch (8) is formed in the outer wall of the shifting plate (7), the roller (6) is connected with the inner wall of the straight groove opening (8) in a sliding mode, and the top of the shifting plate (7) is fixedly connected with the outer wall of the first sliding block (3).
2. The positioning device of the disposable thyroid puncturing device as claimed in claim 1, wherein: the back fixedly connected with slide (9) of slider (3), the inner wall sliding connection of slide (9) has spacing casing (13), the back swing joint of spacing casing (13) has screw rod (11), the one end that spacing casing (13) were kept away from in screw rod (11) runs through the outer wall of slide (9) and slider two (10), just screw rod (11) pass through threaded connection with slider two (10), the rear end fixedly connected with handle (12) of screw rod (11).
3. The positioning device of the disposable thyroid puncturing device as claimed in claim 2, wherein: the inner wall of the limiting shell (13) is connected with a circular plate (14) in a sliding mode, an article placing groove (20) is formed in the middle of the upper surface of the circular plate (14), and a first spring (19) is arranged between the lower surface of the circular plate (14) and the inner wall of the limiting shell (13).
4. The positioning device of the disposable thyroid puncturing device as set forth in claim 3, wherein: the equal fixedly connected with slide two (16) of the left and right sides inner wall of spacing casing (13), the inner wall sliding connection of slide two (16) has slider three (17), the last fixed surface of plectane (14) is connected with down tube (15), slider three (17), two sets of are run through on the top of down tube (15) the equal fixedly connected with grip block (18) of opposite face of slider three (17).
5. The positioning device of the disposable thyroid puncturing device as set forth in claim 3, wherein: the inner wall of the article holding groove (20) is sleeved with a puncture device shell (21), the diameter of the puncture device shell (21) is smaller than the inner diameter of the article holding groove (20), a supporting plate (22) is fixedly connected to the outer wall of the puncture device shell (21), and the diameter of the supporting plate (22) is larger than the inner diameter of the article holding groove (20).
6. The positioning device of the disposable thyroid puncturing device as set forth in claim 5, wherein: the inner wall sliding connection of puncture ware casing (21) has piston board (23), the top fixedly connected with slide bar (24) of piston board (23), the outer wall and the fixedly connected with clamp plate (25) of puncture ware casing (21) are run through on the top of slide bar (24), be provided with spring two (26) between the upper surface of piston board (23) and the inner wall of puncture ware casing (21).
7. The positioning device of the disposable thyroid puncturing device as set forth in claim 6, wherein: the outer wall of piston board (23) has been seted up the through-hole and this through-hole inner wall fixedly connected with collecting vessel (27), the bottom fixedly connected with puncture needle head (28) of collecting vessel (27), the bottom of puncture needle head (28) runs through the bottom of puncture ware casing (21), thief hole (29) have been seted up to the bottom outer wall of puncture needle head (28).
8. The positioning device of the disposable thyroid puncturing device as set forth in claim 7, wherein: spacing hole has all been seted up to both sides about the outer wall of puncture ware casing (21), the downside the inner wall in spacing hole is pegged graft and is had extrusion block (33) of T shape structure, extrusion block (33) are close to and are provided with between one side of puncture ware casing (21) and puncture ware casing (21) spring four (34), the outer wall swing joint of collecting vessel (27) has movable rod (30), stopper (31) of the one end fixedly connected with trapezium structure of collecting vessel (27) are kept away from in movable rod (30), the one side that stopper (31) are close to puncture ware casing (21) inner wall is the inclined plane, stopper (31) joint is the upside limiting hole inner wall, be provided with between one side that stopper (31) are close to collecting vessel (27) and collecting vessel (27) spring three (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310781.0A CN113855194A (en) | 2021-11-08 | 2021-11-08 | Positioning device of disposable thyroid puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310781.0A CN113855194A (en) | 2021-11-08 | 2021-11-08 | Positioning device of disposable thyroid puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113855194A true CN113855194A (en) | 2021-12-31 |
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ID=78987303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111310781.0A Withdrawn CN113855194A (en) | 2021-11-08 | 2021-11-08 | Positioning device of disposable thyroid puncture device |
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| Country | Link |
|---|---|
| CN (1) | CN113855194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421292A (en) * | 2023-03-01 | 2023-07-14 | 常州健力邦德医疗器械有限公司 | Implantation traction mechanism of metal intramedullary pin |
-
2021
- 2021-11-08 CN CN202111310781.0A patent/CN113855194A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421292A (en) * | 2023-03-01 | 2023-07-14 | 常州健力邦德医疗器械有限公司 | Implantation traction mechanism of metal intramedullary pin |
| CN116421292B (en) * | 2023-03-01 | 2023-10-17 | 常州健力邦德医疗器械有限公司 | Implantation traction mechanism of metal intramedullary pin |
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Application publication date: 20211231 |