CN109965916A - Negative pressure suction device for aspiration biopsy - Google Patents
Negative pressure suction device for aspiration biopsy Download PDFInfo
- Publication number
- CN109965916A CN109965916A CN201811187083.4A CN201811187083A CN109965916A CN 109965916 A CN109965916 A CN 109965916A CN 201811187083 A CN201811187083 A CN 201811187083A CN 109965916 A CN109965916 A CN 109965916A
- Authority
- CN
- China
- Prior art keywords
- piston
- puncture needle
- needle core
- retaining component
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001574 biopsy Methods 0.000 title claims abstract description 34
- 241000719178 Carangoides ruber Species 0.000 claims abstract description 24
- 238000005192 partition Methods 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 9
- 210000001519 tissue Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 210000000056 organ Anatomy 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000011796 hollow space material Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000256852 Aculeata Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000013399 early diagnosis Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000001165 lymph node Anatomy 0.000 description 1
- 210000005075 mammary gland Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010827 pathological analysis Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
Classifications
-
- 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
Abstract
Negative pressure suction device for aspiration biopsy, including tube body, hollow piercing needle, puncture needle core, piston rod, rubber piston set, piston driving bar and geared parts, partition is equipped in tube body, piercing needle is mounted in syringe needle connecting tube, piston driving bar is plugged in piston driving bar jack, piston rod is plugged in piston bar jack, rubber piston set is set in the front end of piston rod, geared parts are rotatably mounted on tube body, piston rod includes piston rod tooth, piston driving bar includes piston driving bar tooth, piston rod is equipped with piston rod needle core jack, rubber piston, which is put on, covers needle core jack equipped with rubber piston, tube body side is equipped with puncture needle core locating piece, puncture needle core locating piece is equipped with puncture needle core positioning jack, puncture needle core positioning jack is equipped with puncture needle core positioning pluging rod, puncture needle core positioning pluging rod is equipped with and wears Pricker core ribbon moves head, and the upper end of puncture needle core is fixed on puncture needle core and drives on head, so that puncture needle core is smooth laborsaving when extracting.
Description
Technical field
The present invention relates to the negative pressure suction devices for aspiration biopsy.
Background technique
With the continuous development of medical level, in recent years by the biopsy of ultrasound-guided fine needle aspiration cytology in daily doctor
In treatment using more and more.Puncture needle is essential tool, and this method is applied under ultrasonic surveillance, passes through puncture needle
It obtains superficial organ's tissue target target cell and carries out pathological diagnosis, such as mammary gland, thyroid gland, lymph node, be early diagnosis target mesh
Mark good pernicious most quick, the easy method with safety.
For previous histology biopsy, have many advantages, such as that damage is small, risk is small, result is equally reliable.But with
The development of clinical position, and there is a new problem, the specific structural constituent of lesion determines its physical behavior, may
It is soft, may be tough, may be hard, is also likely to be more viscous.
The lesion soft for quality is easy to extract the cell of diseased region by puncture needle.But for quality than tougher
, it is hard or viscous, merely by puncture needle it is difficult to extract the cell for having diagnostic value is arrived, puncture result is caused to be paid no attention to
Think.
If extraneous vacuum suction appropriate can be combined during puncture needle is proposed and being inserted, success rate will be greatly improved.
But in actual operation, puncture pin puncture mention insert during carry out the difficult of extraneous vacuum suction, when puncture is usually to grasp
Author's left hand is held ultrasonic probe and is monitored in real time, and the right hand, which holds puncture needle and carries out the puncture of tissue, mentions slotting, at this moment operator oneself
It cannot achieve to mention and carry out vacuum suction while being inserted through pricker.If born by helping hand syringes to carry out auxiliary in puncture Aculeata
Pressure attracts, then the cooperation of two people is very big problem, is difficult to realize the coordinative coherence of movement range and frequency.Since itself is mentioned
Take the movement range of sick cell smaller, and accurate, if considerably increased if taking the method for assistant's auxiliary vacuum suction
The risk of puncture.
And the piercing needle of puncture needle is hollow structure, can be furnished with puncture needle core, puncture needle core is entity, puncture needle
Core just fills the hollow space of piercing needle, and the effect of puncture needle core is tissue debris to be prevented in puncture process and other are non-
Target tissue enters in the hollow space of piercing needle, interference effect diagnostic result.
The few one-handed performances of previous puncture needle mention insert during can again can be by conjunction with extraneous vacuum suction appropriate
The function that puncture needle core lifting is extracted.
One end of most importantly puncture needle core is that bending is fixed on tube body, in the process that puncture needle core lifting is extracted
In, puncture needle core is constantly in bending state, causes puncture needle core to be extracted not smooth enough, and also compare the material requirements of needle core
It is higher.
Summary of the invention
In view of the above technical problems, the present invention provides one kind: puncture needle core, can single one-handed performance puncture without bending
Needle again can be by the device for being used to extract histoorgan cell of the smooth extraction of puncture needle core into vacuum suction.
In order to solve the above technical problems, the negative pressure suction device of aspiration biopsy is used for, including tube body, hollow puncture needle
Head, puncture needle core, piston rod, rubber piston set, piston driving bar and geared parts, the tube body front end are closed and are opened before being equipped with
Hole, tube body rear end aperture, the tube body is interior to be equipped with partition, and the intracorporal space of pipe is separated into piston bar jack by the partition
It is equipped with syringe needle connecting tube with the front end of piston driving bar jack, the tube body, the piercing needle is mounted in syringe needle connecting tube,
The piercing needle, syringe needle connecting tube and piston bar jack communicate, and the piston driving bar is plugged in piston driving bar jack
Interior, the piston rod is plugged in piston bar jack, and the rubber piston set is set in the front end of piston rod, the rubber piston
Set is contacted with piston bar jack inner wall, and the geared parts are rotatably mounted on the tube body above partition, the work
Stopper rod includes piston rod tooth, and the piston driving bar includes piston driving bar tooth, the piston rod tooth and piston driving bar tooth phase
To setting, the geared parts are located between piston rod tooth and piston driving bar tooth, the piston rod tooth and piston driving bar tooth
It is engaged with geared parts, the piston rod is equipped with piston rod needle core jack, and the rubber piston is put on equipped with rubber piston
Cover needle core jack, the puncture needle core insertion piston rod needle core jack, rubber piston set needle core jack, syringe needle connecting tube and puncture
In syringe needle,
The tube body side is equipped with puncture needle core locating piece, and the puncture needle core locating piece is equipped with puncture needle core positioning and inserts
Hole, the puncture needle core positioning jack are equipped with puncture needle core positioning pluging rod, and the puncture needle core positioning pluging rod can be in puncture needle
It is moved up and down in core positioning jack, the puncture needle core positioning pluging rod is equipped with puncture needle core and drives head, the puncture needle core
Upper end is fixed on puncture needle core and drives on head, and the puncture needle core positioning pluging rod is parallel with puncture needle core.
It that is is pipe spline structure, front end is the cannulated structure of connecting puncture needle tail portion；The major part of device
For hollow pipe spline structure, there is a longitudinal plane separation plate in pipe, hollow space in pipe is divided longitudinally into two parts space,
Middle a part leads to the cannulated structure of front end, and it is interior have a piston spline structure, fitted closely with tube wall, the separation side of piston
The gear intermeshing for having laciniation and being fixed on above demarcation plate on tube body；There is a structure similar in the space of the other side
The body of rod drives rod structure, and separating side also has laciniation, is equally intermeshed with gear, pushes body of rod driven rod, pass through tooth
Wheel transmission moves upwards side piston, and puncture needle core is driven to move up, and generates negative pressure, superficial tissues organ cell is drawn
Into puncture needle.
Beneficial effect provided by the present invention for the negative pressure suction device of aspiration biopsy is: when use, will puncture
Syringe needle is pierced into superficial tissues organ cell, then presses piston driving bar, shipper pole under the piston driving bar tooth on piston driving bar
The rotation of movable tooth wheel component, geared parts rotation drive piston rod tooth and piston rod to move up, and piston rod, which moves up, drives rubber piston set
It moves up, and moves and drive puncture needle core that head is driven to move up when piston rod moves up, puncture needle core drives head to move up drive puncture needle core
It is moved up with puncture needle core positioning pluging rod,
After puncture needle core leaves piercing needle, rubber piston set is moved up so that negative pressure is generated in piercing needle, so that will
Superficial tissues organ cell is drawn in puncture needle, extracts superficial tissues organ cell so as to one hand,
That is operator oneself realizes to mention and is inserted through pricker and extracts simultaneously puncture needle core and can be carried out vacuum suction,
And act it is accurate, avoid the occurrence of puncture pin puncture mention insert during to carry out extraneous vacuum suction difficulty big, by auxiliary by assistant
Help vacuum suction cooperation difficult and movement range and the inconsistent problem of frequency coordination, occur when avoiding puncturing it is dangerous, and
It avoids tissue debris and other non-target destination organizations enters in the hollow space of piercing needle, interference effect diagnostic result,
There are also puncture needle cores not to be in bending state, the straight state of puncture needle core, puncture needle core and and puncture needle core
Positioning pluging rod is parallel, so that puncture needle core is smooth laborsaving when extracting, and puncture needle core positioning pluging rod is positioned in puncture needle core
It not will shake left and right under the positioning of jack, so that puncture needle core is more smooth laborsaving when extracting.
Further, the puncture needle core locating piece is equipped with puncture needle core positioning pluging rod retaining component, the puncture needle
Core positioning pluging rod retaining component is matched with puncture needle core positioning pluging rod,
Beneficial effect is, by the way that puncture needle core positioning pluging rod retaining component is arranged, can be supplied to puncture needle core positioning and insert
The certain resistance of bar avoids the occurrence of puncture needle core positioning pluging rod and is subjected to displacement under the gravity of itself.
Further, the puncture needle core locating piece is equipped with retaining component mounting post, the puncture needle core positioning pluging rod
Retaining component includes retaining component casting die, retaining component support spring, retaining component circlip and retaining component pressure ball, the retaining
Component casting die is equipped with retaining component casting die overlap aperture, and the retaining component mounting post is equipped with retaining component mounting post card slot,
The retaining component casting die is set in retaining component mounting post, and the retaining component circlip is fastened on retaining component mounting post card
On slot, the retaining component support spring is set in retaining component mounting post, and the retaining component support spring is located at retaining
Between component circlip and retaining component casting die, one end of the retaining component support spring is abutted with retaining component circlip, described
The other end of retaining component support spring is abutted with retaining component casting die, and the retaining component pressure ball is mounted on retaining component casting die
On, the retaining component pressure ball is contacted with puncture needle core positioning pluging rod,
Beneficial effect is the resistance and puncture needle core that this structure can be certain to puncture needle core positioning pluging rod
Positioning pluging rod retaining component is stuck by puncture needle core positioning pluging rod.
Further, the puncture needle core drives the bottom of head to be equipped with and drives head puncture needle core jack, the puncture needle core
It drives the side of head to be equipped with and drives head puncture needle core fixing screwed hole, the drive head puncture needle core fixing screwed hole and drive head
Puncture needle core jack communicates, and the drive head puncture needle core fixing screwed hole is equipped with puncture needle core fixing screws, the puncture
The upper end of needle core, which is plugged in, to be driven in head puncture needle core jack, and the front end of the puncture needle core fixing screws is supported with puncture needle core
It connects.
Beneficial effect is that this structure makes puncture needle core and puncture needle core drive head fixation, avoids puncture needle core
Be detached from, and puncture needle core be mounted on puncture needle core drive head on when it is convenient and simple.
Further, the piston rod includes piston club shaft, piston rod tooth plate and piston rod tooth plate fixing screws, described
Piston club shaft is equipped with piston club shaft groove, and the piston club shaft groove is equipped with piston club shaft groove threaded hole,
The piston rod tooth plate is equipped with piston rod tooth plate screw hole, and the piston rod tooth plate is passed through by piston rod tooth plate fixing screws
Piston rod tooth plate screw hole screws in piston club shaft groove threaded hole and is mounted on piston club shaft groove, and the piston rod tooth is set
It sets on piston rod tooth plate, the piston driving bar includes piston driving club shaft, piston driving bar tooth plate and piston driving bar
Tooth plate fixing screws, the piston driving club shaft are equipped with piston driving club shaft groove, and the piston driving club shaft is recessed
Slot is equipped with piston driving club shaft groove threaded hole, and the piston driving bar tooth plate is equipped with piston driving bar tooth plate screw
Hole, the piston driving bar tooth plate pass through piston driving bar tooth plate screw hole by piston driving bar tooth plate fixing screws and screw in work
Plug drives club shaft groove threaded hole to be mounted on piston driving club shaft groove, and the piston driving bar tooth is arranged in piston band
On lever tooth plate, the geared parts include gear shaft and gear, and the tube body is equipped with gear shaft and installs threaded hole, the tooth
Wheel shaft is equipped with gear axle thread, and the gear shaft is mounted on gear shaft installation threaded hole, and the gear shaft installs threaded hole
It is matched with gear axle thread, the gear is rotatably set on gear shaft, the piston rod tooth and piston driving bar tooth
Engaged with gear, the piston club shaft be equipped with gear left limit item and gear right limit item, the left side of the gear with
Gear left limit item contacts, and right side and the gear right limit item of the gear contact,
Beneficial effect, which is that this structure to cooperate between piston rod and piston driving bar, to be stablized, and gear slipping is prevented, and
And can limiting gear move left and right, prevent the interior wall friction of gear and tube body stuck.
Further, the front end of the piston rod is equipped with rubber piston set plug, and the rubber piston set plug is equipped with
Rubber piston set limit flange collar, the inner wall of the rubber piston set are equipped with rubber piston set and limit recessed circle, the rubber piston
Set limit flange collar enters rubber piston set and limits in recessed circle, and it is convex that the outer surface of the rubber piston set is equipped with rubber piston set sealing
Circle, the rubber piston set sealing flange collar are contacted with piston bar jack inner wall,
Beneficial effect is that this structure makes so that rubber piston set installation is more firm, and rubber piston covers and piston rod
Jack inner wall abutting is even closer, and vacuum effect is more preferable.
Further, the piston driving bar be equipped with pressing lantern ring, the two sides of the tube body be respectively equipped with Zola's hook and
Right drag hook, wherein pressing lantern ring is mounted on piston driving bar by screw, so that when using more smoothly.
The invention will be further described with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of negative pressure suction device provided by the present invention for aspiration biopsy；
Fig. 2 is the second structural representation provided by the present invention for the negative pressure suction device of aspiration biopsy；
Fig. 3 is one of the schematic cross-sectional view of negative pressure suction device provided by the present invention for aspiration biopsy；
Fig. 4 be provided by the present invention for the negative pressure suction device of aspiration biopsy schematic cross-sectional view two；
Fig. 5 is one of the partial enlargement structural representation of negative pressure suction device provided by the present invention for aspiration biopsy；
Fig. 6 be provided by the present invention for the negative pressure suction device of aspiration biopsy partial enlargement structural representation two；
Fig. 7 be provided by the present invention for the negative pressure suction device of aspiration biopsy partial enlargement structural representation three；
Fig. 8 be provided by the present invention for the negative pressure suction device of aspiration biopsy broken section enlarged structure schematic diagram it
One；
Fig. 9 be provided by the present invention for the negative pressure suction device of aspiration biopsy broken section enlarged structure schematic diagram it
Two；
Figure 10 is one of the decomposition texture schematic diagram of negative pressure suction device provided by the present invention for aspiration biopsy；
Figure 11 be provided by the present invention for the negative pressure suction device of aspiration biopsy decomposition texture schematic diagram two；
Figure 12 be provided by the present invention for the negative pressure suction device of aspiration biopsy decomposition texture schematic diagram three；
Figure 13 is one of the section components structural schematic diagram provided by the present invention for the negative pressure suction device of aspiration biopsy；
Figure 14 is the section components second structural representation provided by the present invention for the negative pressure suction device of aspiration biopsy；
Figure 15 is the section components enlarged structure schematic diagram provided by the present invention for the negative pressure suction device of aspiration biopsy.
Specific embodiment
As shown in 1 figure to Figure 15, provided by the present invention for the embodiment of the negative pressure suction device of aspiration biopsy, including pipe
Body 1, hollow piercing needle 2, puncture needle core 2-1, piston rod 3, rubber piston set 4, piston driving bar 5 and geared parts 6, institute
It states 1 front end of tube body and closes and be equipped with preceding aperture, the 1 rear end aperture of tube body, that is to say, that tube body 1 is in syringe sample, the tube body 1
Interior to be equipped with partition 7, the space in tube body 1 is separated into piston bar jack 8 and piston driving bar jack 9, the pipe by the partition 7
The front end of body 1 is equipped with syringe needle connecting tube 10, and the piercing needle 2 is mounted in syringe needle connecting tube 10, the piercing needle 2, needle
Head connecting tube 10 and piston bar jack 8 communicate, and the piston driving bar 5 is plugged in piston driving bar jack 9, the piston
Bar 3 is plugged in piston bar jack 8, and the rubber piston set 4 is set in the front end of piston rod 3, and the rubber piston covers 4 and lives
8 inner wall of stopper rod jack contacts, and the geared parts 6 are rotatably mounted on the tube body 1 of 7 top of partition, the piston
Bar 3 includes piston rod tooth 11, and the piston driving bar 5 includes piston driving bar tooth 12, the piston rod tooth 11 and piston driving
Bar tooth 12 is oppositely arranged, and the geared parts 6 are located between piston rod tooth 11 and piston driving bar tooth 12, the piston rod tooth 11
It is engaged with geared parts 6 with piston driving bar tooth 12, the piston rod 3 is equipped with piston rod needle core jack 3-1, the rubber
Piston bush 4 is equipped with rubber piston and covers needle core jack 4-1, and the puncture needle core 2-1 is inserted into piston rod needle core jack 3-1, rubber
In piston bush needle core jack 4-1, syringe needle connecting tube 10 and piercing needle 2,
1 side of tube body is equipped with puncture needle core locating piece 1-1, and the puncture needle core locating piece 1-1 is equipped with puncture needle
Core positioning jack 1-2, the puncture needle core positioning jack 1-2 are equipped with puncture needle core positioning pluging rod 1-3, and the puncture needle core is fixed
Position inserted link 1-3 can be moved up and down in puncture needle core positioning jack 1-2, and the puncture needle core positioning pluging rod 1-3, which is equipped with, to be punctured
Needle core drives head 1-4, and the upper end of the puncture needle core 2-1 is fixed on puncture needle core and drives on head 1-4, the puncture needle core positioning
Inserted link 1-3 is parallel with puncture needle core 2-1.
Wherein puncture needle core locating piece 1-1 is rectangular, and the puncture needle core positioning jack 1-2 is square hole, the puncture
Needle core positioning pluging rod 1-3 is square pole, and puncture needle core locating piece 1-1 can be integrally formed with tube body, can also by screw or
Puncture needle core locating piece 1-1 is fixed on tube body 1 by glue, and puncture needle core drives head 1-4 and puncture needle core positioning pluging rod 1-3 mono-
Body formed, puncture needle core drives head 1-4 to be located at 3 top of piston rod.
The puncture needle core locating piece 1-1 is equipped with puncture needle core positioning pluging rod retaining component 1-5, and the puncture needle core is fixed
Position inserted link retaining component 1-5 is matched with puncture needle core positioning pluging rod 1-3.The puncture needle core locating piece 1-1 is equipped with retaining
Component mounting post 1-6, the puncture needle core positioning pluging rod retaining component 1-5 include retaining component casting die 1-7, the support of retaining component
Spring 1-8, retaining component circlip 1-9 and retaining component pressure ball 1-10, the retaining component casting die 1-7 are equipped with retaining component pressure
Part overlap aperture 1-11, the retaining component mounting post 1-6 are equipped with retaining component mounting post card slot 1-12, the retaining component pressure
Part 1-7 is set on retaining component mounting post 1-6, and the retaining component circlip 1-9 is fastened on retaining component mounting post card slot 1-
On 12, the retaining component support spring 1-8 is set on retaining component mounting post 1-6, the retaining component support spring 1-8
Between retaining component circlip 1-9 and retaining component casting die 1-7, one end of the retaining component support spring 1-8 and retaining
Component circlip 1-9 is abutted, and the other end of the retaining component support spring 1-8 is abutted with retaining component casting die 1-7, the retaining
Component pressure ball 1-10 is mounted on retaining component casting die 1-7, the retaining component pressure ball 1-10 and puncture needle core positioning pluging rod 1-3
It contacts.
Wherein puncture needle core locating piece 1-1 and retaining component mounting post 1-6 is integrally formed, and retaining component mounting post 1-6 is
Square column, retaining component casting die overlap aperture 1-11 are square hole, by rectangular cooperation so that retaining component casting die 1-7 not can rotate
It can be moved forward and backward, the effect of retaining component circlip 1-9 is fixed retaining component support spring 1-8, makes retaining component support spring
1-8 is pressed on retaining component casting die 1-7, and when motive force is greater than retaining component support spring 1-8, retaining component casting die 1-7 can
With movement, when retaining component casting die 1-7 is moved back, retaining component support spring 1-8 is compressed, and can avoid retaining component casting die in this way
1-7 is stuck, and can provide elastic anchorage force, and retaining component casting die 1-7 is in handle-shaped, retaining component casting die 1-7 and retaining component
Pressure ball 1-10 is integrally formed.
The puncture needle core drives the bottom of head 1-4 to be equipped with and drives head puncture needle core jack 1-13, the puncture needle core band
The side of dynamic head 1-4, which is equipped with, drives head puncture needle core fixing screwed hole 1-14, the drive head puncture needle core fixing screwed hole 1-
14 communicate with head puncture needle core jack 1-13 is driven, and the drive head puncture needle core fixing screwed hole 1-14 is equipped with puncture needle core
Fixing screws 1-15, the upper end of the puncture needle core 2-1, which is plugged in, to be driven in head puncture needle core jack 1-13, the puncture needle core
The front end of fixing screws 1-15 is connected on puncture needle core 2-1, that is to say, that will be worn by puncture needle core fixing screws 1-15
The upper end of pricker core 2-1, which is fixed on, to be driven in head puncture needle core jack 1-13.
The piston rod 3 includes piston club shaft 13, piston rod tooth plate 14 and piston rod tooth plate fixing screws 15, the work
The stopper rod body of rod 13 is equipped with piston club shaft groove 16, and the piston club shaft groove 16 is equipped with piston club shaft groove screw thread
Hole 17, the piston rod tooth plate 14 are equipped with piston rod tooth plate screw hole 18, and the piston rod tooth plate 14 passes through piston rod tooth plate
Fixing screws 15 pass through piston rod tooth plate screw hole 18 and screw in 17 hole of piston club shaft groove screw thread to be mounted on piston club shaft recessed
On slot 16, the piston rod tooth 11 is arranged on piston rod tooth plate 14, and the piston driving bar 5 includes piston driving club shaft 5-
1, piston driving bar tooth plate 19 and piston driving bar tooth plate fixing screws 20, the piston driving club shaft 5-1 are equipped with piston
Club shaft groove 21 is driven, the piston driving club shaft groove 21 is equipped with piston driving club shaft groove threaded hole 22, institute
Piston driving bar tooth plate 19 is stated equipped with piston driving bar tooth plate screw hole 23, the piston driving bar tooth plate 19 passes through piston band
Lever tooth plate fixing screws 20 pass through piston driving bar tooth plate screw hole 23 and screw in the peace of piston driving club shaft groove threaded hole 22
On piston driving club shaft groove 21, the piston driving bar tooth 12 is arranged on piston driving bar tooth plate 19,
The geared parts 6 include gear shaft 24 and gear 25, and the tube body 1 is equipped with gear shaft and installs threaded hole 26,
The gear shaft 24 is equipped with gear axle thread 27, and the gear shaft 13 is mounted on gear shaft installation threaded hole 26, the tooth
Wheel shaft installation threaded hole 26 is matched with gear axle thread 27, and the gear 25 is rotatably set on gear shaft 24, described
Piston rod tooth 11 is engaged with gear 25 with piston driving bar tooth 12, and the piston club shaft 13 is equipped with gear left limit item 28
With gear right limit item 29, left side and the gear left limit item 28 of the gear 25 are contacted, the right side of the gear 25 with
Gear right limit item 29 contacts.
The front end of the piston rod 3 is equipped with rubber piston and covers plug 30, and the rubber piston set plug 30 is equipped with rubber
Piston bush limits flange collar 31, and the inner wall of the rubber piston set 4 is equipped with the recessed circle 32 of rubber piston set limit, the rubber piston
Set limit flange collar 31 enters in the recessed circle 32 of rubber piston set limit, and the outer surface of the rubber piston set 4 is equipped with rubber piston set
Flange collar 33 is sealed, the rubber piston set sealing flange collar 33 is contacted with 8 inner wall of piston bar jack.
The piston driving bar 5 is equipped with pressing lantern ring 34, and the two sides of the tube body 1 are respectively equipped with Zola's hook 35 and right drawing
Hook 36, wherein pressing lantern ring 34 is fixed by screws on piston driving bar 5,1 one of Zola's hook 35 and right drag hook 36 and tube body
Molding.
As needed, specific embodiment of the invention is disclosed herein, it will be appreciated that the disclosed embodiments are
The demonstration present invention, the present invention can have different and alternative form to implement.Attached drawing is not necessarily drawn to scale.Therefore, institute is public herein
The specific structure and function details opened be understood not to it is in a limiting sense, but only as representative basis to instruct ability
Field technique personnel are of the invention using implementing.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Claims (10)
1. being used for the negative pressure suction device of aspiration biopsy, it is characterised in that: including tube body (1), hollow piercing needle (2), wear
Pricker core (2-1), piston rod (3), rubber piston set (4), piston driving bar (5) and geared parts (6), before the tube body (1)
Preceding aperture is closed and be equipped with to end seal, and tube body (1) the rear end aperture, the tube body (1) is interior to be equipped with partition (7), and the partition (7) will
Space in tube body (1) is separated into piston bar jack (8) and piston driving bar jack (9), and the front end of the tube body (1) is equipped with needle
Head connecting tube (10), the piercing needle (2) are mounted on syringe needle connecting tube (10), the piercing needle (2), syringe needle connecting tube
(10) and piston bar jack (8) communicates, and the piston driving bar (5) is plugged in piston driving bar jack (9), the piston
Bar (3) is plugged in piston bar jack (8), and the rubber piston set (4) is set in the front end of piston rod (3), and the rubber is living
Plug sleeve (4) is contacted with piston bar jack (8) inner wall, and the geared parts (6) are rotatably mounted on above partition (7)
On tube body (1), the piston rod (3) includes piston rod tooth (11), and the piston driving bar (5) includes piston driving bar tooth
(12), the piston rod tooth (11) is oppositely arranged with piston driving bar tooth (12), and the geared parts (6) are located at piston rod tooth
(11) between piston driving bar tooth (12), the piston rod tooth (11) and piston driving bar tooth (12) with geared parts (6)
Engagement, the piston rod (3) are equipped with piston rod needle core jack (3-1), and the rubber piston set (4) is equipped with rubber piston set
Needle core jack (4-1), puncture needle core (2-1) insertion piston rod needle core jack (3-1), rubber piston cover needle core jack (4-
1), in syringe needle connecting tube (10) and piercing needle (2),
Tube body (1) side is equipped with puncture needle core locating piece (1-1), and the puncture needle core locating piece (1-1), which is equipped with, to be punctured
Needle core positioning jack (1-2), the puncture needle core positions the slotting hole (1-2) and is equipped with puncture needle core positioning pluging rod (1-3), described to wear
Pricker core positioning pluging rod (1-3) can move up and down in puncture needle core positioning jack (1-2), the puncture needle core positioning pluging rod
(1-3) is equipped with puncture needle core and drives head (1-4), and the upper end of the puncture needle core (2-1) is fixed on puncture needle core and drives head (1-
4) on, the puncture needle core positioning pluging rod (1-3) is parallel with puncture needle core (2-1).
2. the negative pressure suction device according to claim 1 for aspiration biopsy, it is characterised in that: the puncture needle core is fixed
Position part (1-1) is equipped with puncture needle core positioning pluging rod retaining component (1-5), the puncture needle core positioning pluging rod retaining component (1-
5) it is matched with puncture needle core positioning pluging rod (1-3).
3. the negative pressure suction device according to claim 2 for aspiration biopsy, it is characterised in that: the puncture needle core is fixed
Position part (1-1) is equipped with retaining component mounting post (1-6), and the puncture needle core positioning pluging rod retaining component (1-5) includes retaining
Component casting die (1-7), retaining component support spring (1-8), retaining component circlip (1-9) and retaining component pressure ball (1-10), institute
It states retaining component casting die (1-7) and is equipped with retaining component casting die overlap aperture (1-11), set on the retaining component mounting post (1-6)
There is retaining component mounting post card slot (1-12), the retaining component casting die (1-7) is set in retaining component mounting post (1-6),
The retaining component circlip (1-9) is fastened on retaining component mounting post card slot (1-12), the retaining component support spring (1-
8) it is set in retaining component mounting post (1-6), the retaining component support spring (1-8) is located at retaining component circlip (1-9)
Between retaining component casting die (1-7), one end and the retaining component circlip (1-9) of the retaining component support spring (1-8) are supported
It connects, the other end of the retaining component support spring (1-8) is abutted with retaining component casting die (1-7), the retaining component pressure ball
(1-10) is mounted on retaining component casting die (1-7), the retaining component pressure ball (1-10) and puncture needle core positioning pluging rod (1-3)
It contacts.
4. the negative pressure suction device according to claim 1 or 2 or 3 for aspiration biopsy, it is characterised in that: the puncture
Needle core drives the bottom of head (1-4) to be equipped with and drives head puncture needle core jack (1-13), and the puncture needle core drives the side of head (1-4)
Portion, which is equipped with, drives head puncture needle core fixing screwed hole (1-14), the drive head puncture needle core fixing screwed hole (1-14) and drive
Head puncture needle core jack (1-13) communicates, and the drive head puncture needle core fixing screwed hole (1-14) is fixed equipped with puncture needle core
Screw (1-15), the upper end of the puncture needle core (2-1), which is plugged in, to be driven in head puncture needle core jack (1-13), the puncture needle
The front end of core fixing screws (1-15) is connected on puncture needle core (2-1).
5. the negative pressure suction device according to claim 1 or 2 or 3 for aspiration biopsy, it is characterised in that: the piston
Bar (3) includes piston club shaft (13), piston rod tooth plate (14) and piston rod tooth plate fixing screws (15), the piston club shaft
(13) it is equipped with piston club shaft groove (16), the piston club shaft groove (16) is equipped with piston club shaft groove threaded hole
(17), the piston rod tooth plate (14) is equipped with piston rod tooth plate screw hole (18), and the piston rod tooth plate (14) passes through piston
Bar tooth plate fixing screws (15) pass through piston rod tooth plate screw hole (18) screw-in piston club shaft groove screw thread (17) hole and are mounted on
On piston club shaft groove (16), the piston rod tooth (1) 1 is arranged on piston rod tooth plate (14), the piston driving bar (5)
Including piston driving club shaft (5-1), piston driving bar tooth plate (19) and piston driving bar tooth plate fixing screws (20), the work
Plug drives club shaft (5-1) to be equipped with piston driving club shaft groove (21), sets on the piston driving club shaft groove (21)
There is piston driving club shaft groove threaded hole (22), the piston driving bar tooth plate (19) is equipped with piston driving bar tooth plate screw
Hole (23), the piston driving bar tooth plate (19) pass through piston driving bar tooth plate by piston driving bar tooth plate fixing screws (20)
Screw hole (23) screws in piston driving club shaft groove threaded hole (22) and is mounted on piston driving club shaft groove (21), described
Piston driving bar tooth (12) is arranged on piston driving bar tooth plate (19), and the geared parts (6) include gear shaft (24) and tooth
It takes turns (25), the tube body (1) is equipped with gear shaft installation threaded hole (26), and the gear shaft (24) is equipped with gear axle thread
(27), the gear shaft (13) is mounted in gear shaft installation threaded hole (26), gear shaft installation threaded hole (26) and tooth
Wheel shaft (27) matches, and the gear (25) is rotatably set on gear shaft (24), the piston rod tooth (11) with
Piston driving bar tooth (12) is engaged with gear (25), and the piston club shaft (13) is equipped with gear left limit item (28) and tooth
It takes turns right limit item (29), left side and the gear left limit item (28) of the gear (25) contact, the right side of the gear (25)
Side is contacted with gear right limit item (29).
6. the negative pressure suction device according to claim 4 for aspiration biopsy, it is characterised in that: the piston rod (3)
Including piston club shaft (13), piston rod tooth plate (14) and piston rod tooth plate fixing screws (15), the piston club shaft (13)
It is equipped with piston club shaft groove (16), the piston club shaft groove (16) is equipped with piston club shaft groove threaded hole
(17), the piston rod tooth plate (14) is equipped with piston rod tooth plate screw hole (18), and the piston rod tooth plate (14) passes through piston
Bar tooth plate fixing screws (15) pass through piston rod tooth plate screw hole (18) screw-in piston club shaft groove screw thread (17) hole and are mounted on
On piston club shaft groove (16), the piston rod tooth (11) is arranged on piston rod tooth plate (14), the piston driving bar (5)
Including piston driving club shaft (5-1), piston driving bar tooth plate (19) and piston driving bar tooth plate fixing screws (20), the work
Plug drives club shaft (5-1) to be equipped with piston driving club shaft groove (21), sets on the piston driving club shaft groove (21)
There is piston driving club shaft groove threaded hole (22), the piston driving bar tooth plate (19) is equipped with piston driving bar tooth plate screw
Hole (23), the piston driving bar tooth plate (19) pass through piston driving bar tooth plate by piston driving bar tooth plate fixing screws (20)
Screw hole (23) screws in piston driving club shaft groove threaded hole (22) and is mounted on piston driving club shaft groove (21), described
Piston driving bar tooth (12) is arranged on piston driving bar tooth plate (19), and the geared parts (6) include gear shaft (24) and tooth
It takes turns (25), the tube body (1) is equipped with gear shaft installation threaded hole (26), and the gear shaft (24) is equipped with gear axle thread
(27), the gear shaft (13) is mounted in gear shaft installation threaded hole (26), gear shaft installation threaded hole (26) and tooth
Wheel shaft (27) matches, and the gear (25) is rotatably set on gear shaft (24), the piston rod tooth (11) with
Piston driving bar tooth (12) is engaged with gear (25), and the piston club shaft (13) is equipped with gear left limit item (28) and tooth
It takes turns right limit item (29), left side and the gear left limit item (28) of the gear (25) contact, the right side of the gear (25)
Side is contacted with gear right limit item (29).
7. the negative pressure suction device according to claim 1 or 2 or 3 for aspiration biopsy, it is characterised in that: the piston
The front end of bar (3) is equipped with rubber piston set plug (30), and rubber piston set plug (30) is equipped with rubber piston set limit
Flange collar (31), the inner wall of the rubber piston set (4) are equipped with rubber piston set and limit recessed circle (32), the rubber piston set limit
Position flange collar (31) enters rubber piston set and limits in recessed circle (32), and the outer surface of the rubber piston set (4) is equipped with rubber piston
Set sealing flange collar (33), rubber piston set sealing flange collar (33) contact with piston bar jack (8) inner wall.
8. the negative pressure suction device according to claim 4 for aspiration biopsy, it is characterised in that: the piston rod (3)
Front end be equipped with rubber piston set plug (30), rubber piston set plug (30) is equipped with rubber piston set limit flange collar
(31), the inner wall of the rubber piston set (4) is equipped with rubber piston set and limits recessed circle (32), and the rubber piston covers limit convex
It encloses (31) to limit in recessed circle (32) into rubber piston set, it is close that the outer surface of the rubber piston set (4) is equipped with rubber piston set
It seals flange collar (33), rubber piston set sealing flange collar (33) contacts with piston bar jack (8) inner wall.
9. the negative pressure suction device according to claim 6 for aspiration biopsy, it is characterised in that: the piston rod (3)
Front end be equipped with rubber piston set plug (30), rubber piston set plug (30) is equipped with rubber piston set limit flange collar
(31), the inner wall of the rubber piston set (4) is equipped with rubber piston set and limits recessed circle (32), and the rubber piston covers limit convex
It encloses (31) to limit in recessed circle (32) into rubber piston set, it is close that the outer surface of the rubber piston set (4) is equipped with rubber piston set
It seals flange collar (33), rubber piston set sealing flange collar (33) contacts with piston bar jack (8) inner wall.
10. the negative pressure suction device according to claim 9 for aspiration biopsy, it is characterised in that: the piston driving
Bar (5) is equipped with pressing lantern ring (34), and the two sides of the tube body (1) are respectively equipped with Zola's hook (35) and right drag hook (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187083.4A CN109965916A (en) | 2018-10-12 | 2018-10-12 | Negative pressure suction device for aspiration biopsy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187083.4A CN109965916A (en) | 2018-10-12 | 2018-10-12 | Negative pressure suction device for aspiration biopsy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109965916A true CN109965916A (en) | 2019-07-05 |
Family
ID=67076028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811187083.4A Pending CN109965916A (en) | 2018-10-12 | 2018-10-12 | Negative pressure suction device for aspiration biopsy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109965916A (en) |
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| CN209789894U (en) * | 2018-10-12 | 2019-12-17 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Negative pressure suction device for puncture biopsy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007065324A1 (en) * | 2005-12-10 | 2007-06-14 | Shandong Weigao Group Medical Polymer Co., Ltd | A disposable safety syringe |
| KR101275917B1 (en) * | 2012-02-16 | 2013-06-17 | 권혁호 | Dual purpose pen type device for ultrasound guided fine needle aspiration and core needle biopsy |
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