CN110201254A - A kind of flow diverter for tumour ponding - Google Patents
A kind of flow diverter for tumour ponding Download PDFInfo
- Publication number
- CN110201254A CN110201254A CN201910619952.4A CN201910619952A CN110201254A CN 110201254 A CN110201254 A CN 110201254A CN 201910619952 A CN201910619952 A CN 201910619952A CN 110201254 A CN110201254 A CN 110201254A
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- piston head
- push
- pull rod
- cylinder
- stage piston
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/101—Pleural cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1021—Abdominal cavity
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to area of medical devices field, specifically a kind of flow diverter for tumour ponding.Including water-logging box, piercing needle and injection tube, the needle mouth of piercing needle and the injection nozzle of injection tube pass through hose respectively and are connected with water-logging box, the piston of injection tube is split type and including first stage piston head and second piston head, the interior edge of the cylinder of the outer and injection tube of first stage piston head is cooperated in a manner of Frictional Slipping, second piston head is connected with the push-pull rod of injection tube, and first stage piston head and second piston head can engage so that the plunger shaft of cylinder is isolated from the outside automatically in the drawing journey of push-pull rod, first stage piston head and second piston head can be also automatically separated in the rise of push-pull rod so that the plunger shaft of cylinder is connected to by the Separation of first stage piston head and second piston head with outside.The duration of ponding drainage can be improved in the present invention, and the ponding surgical drainage time is greatly shortened.
Description
Technical field
The present invention relates to area of medical devices field, specifically a kind of flow diverter for tumour ponding.
Background technique
Tumor patient is frequently accompanied by the ponding in thoracic cavity or abdominal cavity, and when ponding early stage will appear the violent pectoralgia of Ipsilateral, as needle pierces
Cut sample deeply breathes or coughs and is even more serious, this is because caused by sticky liquid and two layers of pleura friction.As hydrops increases
More, patient will appear shortness of breath, palpitaition and expiratory dyspnea, and gradually aggravate.
Original ponding surgical drainage is usually to extract after using syringe to be pierced into Ipsilateral to ponding.Hydrops exhausts
Afterwards, the pressure that big blood vessel is subject in lung, the heart and thoracic cavity can be released, the symptoms such as shortness of breath, palpitaition, expiratory dyspnea can mitigate, temporarily
When alleviate pain.But in the biggish situation of water accumulating volume, need replacing more syringes and repeatedly Ipsilateral is punctured, increases
The big pain of patient.
With the development of ponding surgical drainage, there is a kind of syringe needle, water-logging box and the ponding drainage of injection tube cooperation
Device, syringe needle and injection tube are connect with the water-logging box of rigidity respectively.After syringe needle is pierced into Ipsilateral, pass through the outer push-and-pull for drawing injection tube
Bar makes to generate negative pressure in water-logging box, so that ponding be drained in water-logging box from Ipsilateral, and can be accommodated by water-logging box relatively large
Ponding.But such drainage device is when in use, after injection tube push-pull rod is pulled outwardly extremely limit, needs to lead to injection tube
It crosses quick coupling to remove from water-logging box, and will be connected again with water-logging box after the air in push-pull rod push-in exhaustjet cylinder, with
It avoids directly inwardly pushing when push-pull rod and more air is squeezed into water-logging box even patient's body.In the more situation of ponding
Under, it needs being dismounted for multiple times injection tube that operation is exhausted, substantially prolongs the duration of ponding surgical drainage, increase doctor
Operation strength.
Summary of the invention
The present invention is intended to provide a kind of flow diverter for tumour ponding can be substantially to improve the duration of ponding drainage
Degree shortens the ponding surgical drainage time.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows: a kind of flow diverter for tumour ponding,
Including water-logging box, piercing needle and injection tube, the needle mouth of piercing needle and the injection nozzle of injection tube pass through hose and product respectively
Water box are connected, and the piston of injection tube is split type and including first stage piston head and second piston head, the outer of first stage piston head with
The interior edge of the cylinder of injection tube is cooperated in a manner of Frictional Slipping, and second piston head is connected with the push-pull rod of injection tube, and level-one is living
Chock plug and second piston head can engage automatically in the drawing journey of push-pull rod so that the plunger shaft of cylinder is isolated from the outside, first stage piston
Head and second piston head can be also automatically separated in the rise of push-pull rod so that the plunger shaft of cylinder passes through first stage piston head and two
The Separation of grade piston head is connected to outside.
Preferably, offer axis hole in the position of injection nozzle side opposite to each other on first stage piston head, on first stage piston head between
Multiple first ventholes for being equipped with connection plunger shaft and axis hole are separated, the shape of second piston head is tubular and gapless can be rotated
It is fitted in axis hole, runs through on the barrel of second piston head and offer the second ventilation corresponding with the first number of air hole
Hole, along being additionally provided with along inclined direction distribution and sliding slot closed at both ends in the barrel of second piston head, the end of push-pull rod with
The mode of clearance fit is plugged in second piston head and is equipped with along the radially-arranged driving lever of push-pull rod, and driving lever is slidably arranged in cunning
It driving second piston head can be rotated in slot and in opposite direction in axis hole in the rise of push-pull rod and drawing journey, so that driving lever
The first venthole and the second venthole when being located at sliding slot end positions are at one-to-one correspondence connection or interlaced
State.
Preferably, first stage piston head is made of rubber material, and second piston head includes using the interior of metal material production
Cylinder and use rubber material make and are fixed on the outer cylinder of inner cylinder periphery, and the second venthole is distributed through inner barrel and outer barrel.
Preferably, it is fixed with opposite to each other in the position of injection nozzle side using metal material production on first stage piston head
Sealing plate, corresponding on sealing plate to offer the through-hole passed through for push-pull rod, it is living to avoid second level that the aperture of through-hole is less than the internal diameter of axis hole
Chock plug is deviate from from axis hole.
Preferably, it is symmetrically arranged with two driving levers on push-pull rod, two sliding slots are correspondingly provided on the inner wall of inner cylinder.
Preferably, inner barrel and outer barrel is fixed by binder.
Preferably, through bellmouth of the big end towards injection nozzle directional spreding is offered on first stage piston head, second level is living
The shape of chock plug be taper type corresponding with tapered bore profile and being arranged in cylinder be located at first stage piston head and injection nozzle it
Between position, the small end of second piston head is fixedly connected with push-pull rod, and the side on push-pull rod positioned at bellmouth small end is fixed
It is greater than the block plate in the aperture of bellmouth small end equipped with outer diameter, is equipped at intervals on block plate multiple corresponding with the small end of bellmouth
Third venthole.
Preferably, through stepped hole of the macropore towards injection nozzle directional spreding is offered on first stage piston head, second level is living
Chock plug is arranged in the position in cylinder between first stage piston head and injection nozzle and can be used for blocking the macropore of stepped hole, push-and-pull
Bar is fixedly connected across stepped hole with second piston head with after the aperture clearance fit in stepped hole, and step is located on push-pull rod
Position in the macropore of hole is arranged with the spring for connecting first stage piston head and second piston head.
Beneficial effect
Injection tube in the present invention includes a split type piston, which is made of first stage piston head and second piston head,
And first stage piston head and second piston head can automatic closed be integral under the pulling force effect of push-pull rod, make the piston of injection tube
Chamber is isolated from the outside；And gap is automatically separated or generated under the impetus of push-pull rod so that plunger shaft in injection tube with
Outside connection.To make operator by the push-pull rod of reciprocating sliding injection tube, that is, it can reach injection tube and do not turn off and water-logging box
Lasting pumping effect under connection, and then improve the continuity of ponding drainage.Compared with prior art, it substantially increases
The efficiency of ponding drainage, shortens operating time.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the perspective view of the explosion under the injection tube partial cross state in the embodiment of the present invention 1；
Fig. 3 is status diagram of the injection tube part in push-pull rod rise in the embodiment of the present invention 1；
Fig. 4 is status diagram of the injection tube part in push-pull rod drawing journey in the embodiment of the present invention 1；
Fig. 5 is the schematic perspective view for pushing and pulling bar part in the embodiment of the present invention 1 in injection tube；
Fig. 6 is the cross-sectional view of inner cylindrical portion in injection tube second piston head in the embodiment of the present invention 1；
Fig. 7 is the structural schematic diagram of the injection tube part in the embodiment of the present invention 2；
Fig. 8 is the structural schematic diagram of the injection tube part in the embodiment of the present invention 3；
Marked in the figure: 1, piercing needle, 2, water-logging box, 3, injection tube, 4, second piston head, 401, outer cylinder, 402, sliding slot, 403,
Inner cylinder, the 404, second venthole, 5, first stage piston head, the 501, first venthole, 502, axis hole, 503, bellmouth, 504, step
Hole, 6, push-pull rod, 7, driving lever, 8, sealing plate, 9, through-hole, 10, cylinder, 11, plunger shaft, 12, injection nozzle, 13, third venthole,
14, block plate, 15, spring.
Specific embodiment
As shown in Figure 1, a kind of flow diverter for tumour ponding of the invention, including water-logging box 2, piercing needle 1 and
Injection tube 3.Injection tube 3 is approximate with regular injection cylinder 3, and the cylinder 10, setting including other end opening closed at one end are in cylinder
Injection nozzle 12, the push-pull rod 6 being threaded through in cylinder 10 and the piston being connected on push-pull rod 6 of 10 closing end positions, in cylinder
Cavity in body 10 between injection nozzle 12 and piston constitutes the plunger shaft 11 of variable volume.It is different from regular injection cylinder 3
Be: the piston in the present invention is made of first stage piston head 5 and second piston head 4, outer and the injection tube 3 of first stage piston head 5
The interior edge of cylinder 10 is cooperated in a manner of Frictional Slipping, and second piston head 4 is connected with the push-pull rod 6 of injection tube 3.And first stage piston head
5 and second piston head 4 can be engaged automatically in the drawing journey of push-pull rod 6 so that outside at plunger shaft 11 and 10 open end of cylinder every
Absolutely, first stage piston head 5 and second piston head 4 can be also automatically separated so that plunger shaft 11 passes through level-one in the rise of push-pull rod 6
The Separation of piston head 5 and second piston head 4 is connected to the outside at 10 open end of cylinder.In injection tube 3 i.e. of the present invention
Whether connection outside at plunger shaft 11 and its open end with the rise of push-pull rod 6 or draw Cheng Youguan, by the needle of piercing needle 1
It, can back and forth pushing away by 3 push-pull rod 6 of injection tube after the injection nozzle 12 of mouth and injection tube 3 is connected by hose with water-logging box 2 respectively
Drawing reach injection tube 3 do not turn off with the lasting pumping effect under 2 connection of water-logging box, improve ponding drainage continuity
It is carried out below with connection structure of three embodiments to the piston of injection tube 3 in the present invention and piston and push-pull rod 6 detailed
Illustrate:
Embodiment 1
As shown in Fig. 2,3 and 4: the first stage piston head 5 in the present embodiment is made of rubber material, in periphery and cylinder 10
Cooperate along Frictional Slipping.The circle for being coupled for second piston head 4 is offered in the center on 5 top of first stage piston head
The axis hole 502 of shape is also spaced apart on first stage piston head 5 and axis hole 502 is connected with the plunger shaft 11 of injection tube 3 equipped with multiple
The first venthole 501.Second piston head 4 rotates coaxially cooperation in axis hole 502, and including using in metal material production
Cylinder 403 and the outer cylinder 401 that 403 periphery of inner cylinder is fixed on by binder, outer cylinder 401 are equally made of rubber material, so as to
In realizing the blind-mate between 4 periphery of second piston head and 502 hole wall of axis hole, make piston in the drawing journey process of push-pull rod 6
The good obturation effect of middle holding plunger shaft 11.On the barrel of second piston head 4 be spaced apart be equipped with quantity and setting highly with
Corresponding multiple second ventholes 404 of first venthole 501, the second venthole 404 run through the inner cylinder 403 of second piston head 4
It is distributed with the barrel of outer cylinder 401, so that piston can be logical by the first venthole 501 and second in the rise with push-pull rod 6
Stomata 404 corresponds external being connected to that connection achievees the effect that plunger shaft 11 with the open end position of injection tube 3.
One-to-one correspondence connected state in the present embodiment between the first venthole 501 and the second venthole 404 or envelope of interlocking
Closed state is realized by the rotation of second piston head 4, and the rotation then company with push-pull rod 6 and second piston head 4 of second piston head 4
The rise or drawing Cheng Youguan of binding structure and push-pull rod 6, are in particular in: in conjunction with shown in Fig. 5 and Fig. 6, pushing away in the present embodiment
6 lower end position of pull rod is symmetrically fixed with driving lever 7.Confession is correspondingly provided with along position in the barrel of 4 metal interior bucket of second piston head
The sliding slot 402 that driving lever 7 is slidably matched respectively, and sliding slot 402 is correspondingly arranged along 3 cylinder of injection tube, 10 axially direction is favoured.
After two driving levers 7 are slidably fitted in the sliding slot 402 of respective side respectively, due to second piston head 4 and and piston head between be only
Be rotatably assorted, so that with push-pull rod 6 to 12 direction of injection nozzle push or to opposite to each other in injection nozzle 12 direction pull out can by dial
The cooperation of bar 7 and sliding slot 402 is stirred second piston head 4 and is rotated in opposite direction in axis hole 502.It is being pushed away to reach the present invention
Pull rod 6 draws plunger shaft 11 and 3 open end of injection tube in journey to completely cut off, otherwise the technical effect of connection, and the second level in the present embodiment is living
The second venthole 404 and sliding slot 402 on chock plug 4 are set as shown in Figures 3 and 4, when the driving lever 7 on push-pull rod 6 is with pushing away
When pull rod 6 drops to 402 lower end position of sliding slot, driving lever 7 stirs second piston head 4 and turns to the second venthole 404 and first logical
Stomata 501 corresponds connection；When the driving lever 7 on push-pull rod 6 rises to 402 upper end position of sliding slot with push-pull rod 6, driving lever 7
Stir that second piston head 4 turns to the second venthole 404 and the first venthole 501 interlocks one by one, closed piston chamber 11 and cylinder
Communicating passage outside at 10 open ends.
In the present embodiment, to avoid second piston head 4 from being pulled out from axis hole 502 by push-pull rod 6, spy is in first stage piston head 5
On cohere the sealing plate 8 for being fixed with and being made of metal material in the position of 12 side of injection nozzle opposite to each other, correspondence opens up on sealing plate 8
There is the through-hole 9 passed through for push-pull rod 6, the aperture of through-hole 9 is less than the internal diameter of axis hole 502.The concrete application mode of the present embodiment is such as
Under: push-pull rod 6 is pulled up, it is living that the driving lever 7 on push-pull rod 6 stirs second level with the cooperation of sliding slot 402 on second piston head 4 first
Chock plug 4 turns to state as shown in Figure 4 in axis hole 502.Driving lever 7 is located at the closed upper end of sliding slot 402 at this time, and can push and pull
Bar 6 continues to pull up under state, with 402 upper end of driving lever 7 and sliding slot as a whole by second piston head 4 and first stage piston head 5
Pull-up together, the volume of continuous enlargement plunger shaft 11 form negative pressure and are transferred to progress ponding drainage in water-logging box 2.Work as push-and-pull
Bar 6 is pulled up to the extreme position of 10 end of cylinder, pushes push-pull rod 6, and the driving lever 7 on push-pull rod 6 is living with second level first
The cooperation of sliding slot 402 on chock plug 4 is stirred second piston head 4 and is rotated backward to state as shown in Figure 3, and driving lever 7, which is located at, at this time slides
The closed lower end position of slot 402, and can be during push-pull rod 6 continues pushing, by two with 402 lower end of driving lever 7 and sliding slot
Grade piston head 4 is thrown and first stage piston head 5 pushes together.It is mutually interconnected due to the first venthole 501 with the second venthole 404 at this time
It is logical, be connected to plunger shaft 11 with outside atmosphere, in the case where not removing injection tube 3 also can by the air in injection tube 3 by
At first venthole 501 and 404 dispatch of the second venthole to 10 open end of cylinder.The rise and drawing journey of above-mentioned push-pull rod 6 can be general
It includes are as follows: push-pull rod 6 is in rise or the initial phase of journey is drawn to drive second piston by the cooperation of driving lever 7 and sliding slot 402 first
First 4 turn to corresponding state, then drive second piston head 4 and first stage piston by the cooperation of 402 end of driving lever 7 and sliding slot
First 5 rise or fall as a whole.
Force of sliding friction in the present embodiment between 10 inner wall of first stage piston head 5 and cylinder should be greater than second piston head 4
Rotary resistance can be coated with profit between 502 hole wall of periphery and axis hole of second piston head 4 and between driving lever 7 and sliding slot 402
Lubricating oil, further increases the flexibility of the rotation of second piston head 4, and avoids driving lever 7 stuck in sliding slot 402, and it is logical to generate first
Stomata 501 and 404 relative position of the second venthole not in place in the case of driven by push-pull rod 6 and rub between piston overpowers and barrel
Wipe the case where power is directly slided.
Embodiment 2
As shown in fig. 7, the first stage piston head 5 and second piston head 4 in the present embodiment are all made of rubber material production.It is living in level-one
Run through on chock plug 5 and offers big end downward, the bellmouth 503 of small end upward.The shape of second piston head 4 be and bellmouth 503
The corresponding taper type of shape is simultaneously arranged in plunger shaft 11, and small end is fixedly connected with push-pull rod 6.Second piston head 4 can be
Bellmouth 503 is closed in the upward drawing journey of push-pull rod 6, makes plunger shaft 11 and external atmosphere.It is located at cone on push-pull rod 6
The side of 503 top of shape hole is fixed with block plate 14 of the outer diameter greater than the aperture of 503 small end of bellmouth, is spaced and sets on block plate 14
There are multiple third ventholes 13 corresponding with the small end of bellmouth 503, it can be in the downward rise of push-pull rod 6 on the one hand by two
The gap that the conical ring being connected with plunger shaft 11 is generated between grade piston head 4 and first stage piston head 5, on the other hand can be by above-mentioned
Block plate 14 pushes the mobile decline of first stage piston head 5 so that the air in plunger shaft 11 be connected by the gap with conical ring the
The discharge of three ventholes 13.
Embodiment 3
As shown in figure 8, the first stage piston head 5 and second piston head 4 in the present embodiment are all made of rubber material production.It is living in level-one
Run through on chock plug 5 and offers macropore stepped hole 504 directed downwardly.Second piston head 4, which is arranged in cylinder 10, is located at first stage piston head 5
Position between injection nozzle 12 and the macropore that can be used for blocking stepped hole 504, between the aperture in push-pull rod 6 and stepped hole 504
Stepped hole 504 is passed through after gap cooperation to be fixedly connected with second piston head 4, and the position in 504 macropore of stepped hole is located on push-pull rod 6
Set the spring 15 being arranged with for connecting first stage piston head 5 and second piston head 4.In the upward drawing journey of push-pull rod 6, second level is living
Chock plug 4 pushes first stage piston head 5 to move up together；In the downward rise of push-pull rod 6, second piston head 4 moves down first and with one
The gap being connected to for plunger shaft 11 with outside is generated between grade piston head 5, is then lived under the connection function of spring 15 by second level
Chock plug 4 moves down together with pulling first stage piston head 5 to overcome the frictional force between 10 inner wall of cylinder.
Claims (8)
1. a kind of flow diverter for tumour ponding, it is characterised in that: including water-logging box (2), piercing needle (1) and injection tube
(3), the injection nozzle (12) of the needle mouth of piercing needle (1) and injection tube (3) is connected by hose with water-logging box (2) respectively, is injected
The piston of cylinder (3) is split type and including first stage piston head (5) and second piston head (4), the outer of first stage piston head (5) and note
The interior edge of the cylinder (10) of shooting cylinder (3) is cooperated in a manner of Frictional Slipping, the push-pull rod (6) of second piston head (4) and injection tube (3)
It is connected, and first stage piston head (5) and second piston head (4) can engage so that cylinder (10) automatically in the drawing journey of push-pull rod (6)
Plunger shaft (11) be isolated from the outside, first stage piston head (5) and second piston head (4) can also in the rise of push-pull rod (6) from
It is dynamic separate so that cylinder (10) plunger shaft (11) by the Separation of first stage piston head (5) and second piston head (4) with outside
Portion's connection.
2. a kind of flow diverter for tumour ponding according to claim 1, it is characterised in that: on first stage piston head (5)
Axis hole (502) are offered in the position of injection nozzle (12) side opposite to each other, is spaced apart on first stage piston head (5) and is equipped with connection piston
The shape of multiple first ventholes (501) of chamber (11) and axis hole (502), second piston head (4) is tubular and gapless can turn
It is dynamic to be fitted in axis hole (502), through offering and the first venthole (501) number on the barrel of second piston head (4)
Corresponding second venthole (404) is measured, edge is additionally provided with along inclined direction distribution and two end seals in the barrel of second piston head (4)
The sliding slot (402) closed, the end of push-pull rod (6) are plugged in second piston head (4) in a manner of clearance fit and are equipped with edge and pushed away
Pull rod (6) radially-arranged driving lever (7), driving lever (7) be slidably arranged in sliding slot (402) and can push-pull rod (6) rise and
Driving second piston head (4) in journey is drawn to rotate in opposite direction in axis hole (502), so that driving lever (7) is located at sliding slot
(402) the first venthole (501) when end positions is to correspond with the second venthole (404) and is connected to or mutually hands over
Wrong state.
3. a kind of flow diverter for tumour ponding according to claim 2, it is characterised in that: first stage piston head (5) is adopted
It is made of rubber material, second piston head (4) includes making using the inner cylinder (403) of metal material production and using rubber material
And it is fixed on the outer cylinder (401) of inner cylinder (403) periphery, the second venthole (404) is distributed through inner cylinder (403) and outer cylinder (401).
4. a kind of flow diverter for tumour ponding according to claim 3, it is characterised in that: in first stage piston head (5)
On be fixed with the sealing plate (8) made of metal material in the position of injection nozzle (12) side opposite to each other, correspondence is opened on sealing plate (8)
Equipped with the through-hole (9) passed through for push-pull rod (6), the aperture of through-hole (9) is less than the internal diameter of axis hole (502) to avoid second piston head
(4) abjection from axis hole (502).
5. a kind of flow diverter for tumour ponding according to claim 3, it is characterised in that: in push-pull rod (6) on pair
Claim to be equipped with two driving levers (7), two sliding slots (402) are correspondingly provided on the inner wall of inner cylinder (403).
6. a kind of flow diverter for tumour ponding according to claim 3, it is characterised in that: inner cylinder (403) and outer cylinder
(401) it is fixed by binder.
7. a kind of flow diverter for tumour ponding according to claim 1, it is characterised in that: in first stage piston head (5)
It is upper through offering bellmouth (503) of the big end towards injection nozzle (12) directional spreding, the shape of second piston head (4) is and cone
The corresponding taper type of shape hole (503) shape and being arranged in cylinder (10) be located at first stage piston head (5) and injection nozzle (12) it
Between position, the small end of second piston head (4) is fixedly connected with push-pull rod (6), is located at bellmouth (503) on push-pull rod (6)
The side of small end is fixed with block plate (14) of the outer diameter greater than the aperture of bellmouth (503) small end, is spaced and sets on block plate (14)
There are multiple third ventholes (13) corresponding with the small end of bellmouth (503).
8. a kind of flow diverter for tumour ponding according to claim 1, it is characterised in that: in first stage piston head (5)
Above through stepped hole (504) of the macropore towards injection nozzle (12) directional spreding is offered, second piston head (4) is arranged in cylinder
(10) it position between first stage piston head (5) and injection nozzle (12) and can be used for blocking the macropores of stepped hole (504) in, push away
Pull rod (6) is fixedly connected across stepped hole (504) with second piston head (4) with after the aperture clearance fit in stepped hole (504),
The position being located in stepped hole (504) macropore on push-pull rod (6) is arranged with for connecting first stage piston head (5) and second piston
The spring (15) of head (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210280538.7A CN114984334A (en) | 2019-07-10 | 2019-07-10 | But tumour ponding drainage ware of continuous suction |
| CN201910619952.4A CN110201254B (en) | 2019-07-10 | 2019-07-10 | Drainage device for tumor hydrops |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619952.4A CN110201254B (en) | 2019-07-10 | 2019-07-10 | Drainage device for tumor hydrops |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210280538.7A Division CN114984334A (en) | 2019-07-10 | 2019-07-10 | But tumour ponding drainage ware of continuous suction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110201254A true CN110201254A (en) | 2019-09-06 |
| CN110201254B CN110201254B (en) | 2022-04-12 |
Family
ID=67797086
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210280538.7A Withdrawn CN114984334A (en) | 2019-07-10 | 2019-07-10 | But tumour ponding drainage ware of continuous suction |
| CN201910619952.4A Active CN110201254B (en) | 2019-07-10 | 2019-07-10 | Drainage device for tumor hydrops |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210280538.7A Withdrawn CN114984334A (en) | 2019-07-10 | 2019-07-10 | But tumour ponding drainage ware of continuous suction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413494A (en) * | 2021-05-18 | 2021-09-21 | 南昌大学 | Injection equipment for detoxifying injection for snake bite emergency treatment and preparation method thereof |
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| CN107875476A (en) * | 2018-01-09 | 2018-04-06 | 耿金宏 | A kind of PICC nursing devices of adjustable pumping function |
| CN207286412U (en) * | 2017-02-24 | 2018-05-01 | 河南科技大学第一附属医院 | A kind of safety injector |
| CN108065971A (en) * | 2017-12-28 | 2018-05-25 | 山西阳光中天医疗器械有限公司 | A kind of suction lipectomy device that continuous negative pressure is provided and its application method |
| CN207591024U (en) * | 2017-05-27 | 2018-07-10 | 西安交通大学医学院第一附属医院 | A kind of contactless cubing body fluid drainage bag |
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| CN207591024U (en) * | 2017-05-27 | 2018-07-10 | 西安交通大学医学院第一附属医院 | A kind of contactless cubing body fluid drainage bag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113413494A (en) * | 2021-05-18 | 2021-09-21 | 南昌大学 | Injection equipment for detoxifying injection for snake bite emergency treatment and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110201254B (en) | 2022-04-12 |
| CN114984334A (en) | 2022-09-02 |
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