CN209091561U - A kind of department of cardiac surgery's puncture needle - Google Patents
A kind of department of cardiac surgery's puncture needle Download PDFInfo
- Publication number
- CN209091561U CN209091561U CN201821201194.1U CN201821201194U CN209091561U CN 209091561 U CN209091561 U CN 209091561U CN 201821201194 U CN201821201194 U CN 201821201194U CN 209091561 U CN209091561 U CN 209091561U
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- CN
- China
- Prior art keywords
- liquid
- piston cylinder
- piston
- tube
- liquid separatnig
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- 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.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of department of cardiac surgery's puncture needles, including piston cylinder, piston for pumping liquid is installed in the piston cylinder, the piston is connected with driving mechanism, the outer surface of the piston cylinder is radially fixed to be connected with liquid separatnig tube, the outer surface of the piston cylinder offers opening, the piston cylinder is connected to by opening with liquid separatnig tube, elastomeric closure for closing opening is installed in the liquid separatnig tube, the liquid separatnig tube is communicated with connecting tube far from one end of piston cylinder, the connecting tube is communicated with liquid capsule far from one end of liquid separatnig tube, drain pipe is communicated in the liquid capsule, screw thread nut cap is installed on the drain pipe.The design of the utility model liquid separatnig tube automatic drain formula, since the environment of an opposing seal is necessary for when piston extracts liquid in piston cylinder, therefore the setting of elastomeric closure can close piston cylinder in piston cylinder drawing liquid, and the liquid in piston cylinder is discharged by liquid separatnig tube after drawing liquid.
Description
Technical field
The utility model relates to department of cardiac surgery's equipment technical field more particularly to a kind of department of cardiac surgery's puncture needles.
Background technique
Currently, department of cardiac surgery's puncture treats the liquid drawing device used, structure is that the front end of injection-tube is cased with piercing needle,
It when the liquid of extraction is less, can once complete, when the liquid of extraction is more, it is necessary to which repeated multiple times extraction each time must
Injection-tube must be pulled out, pour out liquid in pipe, then connect again with piercing needle, increase the labor intensity of medical worker, and
It is unable to control drawing liquid amount for extracting the less occasion of liquid, doctor sometimes cannot more preferable control force when pulling piston rod
The organ sucking of patient is caused to damage by degree, overdraft.
Utility model content
It can not be extracted repeatedly purpose of the utility model is to solve puncture needle in the prior art and be unable to control drawing liquid
The problem of amount, and a kind of department of cardiac surgery's puncture needle proposed.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of department of cardiac surgery's puncture needle, including piston cylinder are equipped with the piston for pumping liquid in the piston cylinder,
The piston is connected with driving mechanism, and the outer surface of the piston cylinder is radially fixed to be connected with liquid separatnig tube, the piston cylinder it is outer
Surface offers opening, and the piston cylinder is connected to by opening with liquid separatnig tube, is equipped in the liquid separatnig tube for closing opening
Elastomeric closure, the liquid separatnig tube is communicated with connecting tube far from one end of piston cylinder, the connecting tube far from liquid separatnig tube one
End is communicated with liquid capsule, and drain pipe is communicated in the liquid capsule, screw thread nut cap is equipped on the drain pipe.
Preferably, the driving mechanism includes stock screw, nut and knob；
The stock screw is fixedly connected with the piston, and the nut is rotatably connected on the inner wall of piston cylinder, the stock
Screw is connect with nut thread, and the nut, which is located at the interference fit of the part outside piston cylinder, knob.
Preferably, the outer surface interference fit of the nut has a bearing, the bearing and is glued on the inner wall of piston cylinder.
Preferably, the elastomeric closure includes block and reset spring；
The block uses concave character type structure, and the block gap passes through liquid separatnig tube, and the block is located in liquid separatnig tube
Gluing has reset spring between part and the inner wall of liquid separatnig tube.
Preferably, external screw thread is offered on the drain pipe, the drain pipe is threaded with threaded cap by external screw thread
Cap.
Compared with prior art, the utility model has following advantages:
1, liquid separatnig tube automatic drain formula designs, due to being necessary for an opposing seal in piston cylinder when piston extracts liquid
Environment, therefore the setting of elastomeric closure can close piston cylinder in piston cylinder drawing liquid, by the liquid in piston cylinder after drawing liquid
Be discharged by liquid separatnig tube, in effective solution traditional technology injection-tube repeatedly plug the problem of.
2, the design of screw drive mechanism, due to the stability of threaded connection, a circle can only realize that stock screw is a bit of
The movement of distance, in effective solution traditional technology piston rod cannot good control, be easy the problem of excessively pullling,
Effectively prevent imbibition from excessively causing to damage to patient organ.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of department of cardiac surgery's puncture needle structural schematic diagram；
Fig. 2 is part A enlarged structure schematic diagram in the utility model Fig. 1.
In figure: 1 piston cylinder, 2 pistons, 3 stock screws, 4 nuts, 5 bearings, 6 knobs, 7 liquid separatnig tubes, 8 connecting tubes, 9 liquid capsules,
10 drain pipes, 11 openings, 12 reset springs, 13 blocks.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-2, a kind of department of cardiac surgery's puncture needle, including piston cylinder 1 are equipped with for aspirated liquid in piston cylinder 1
The piston 2 of body, piston 2 are connected with driving mechanism.
More specifically, driving mechanism includes stock screw 3, nut 4 and knob 6, wherein stock screw 3, nut 4 and knob
6 can be used medical plastic, such as PC material is made；Stock screw 3 is fixedly connected with piston 2, and nut 4 is rotatably connected on piston
On the inner wall of cylinder 1, stock screw 3 is threadedly coupled with nut 4, and nut 4, which is located at the interference fit of the part outside piston cylinder 1, knob 6,
The effect of driving mechanism is, the axial movement of stock screw 3 is realized by the rotation of nut 4, to substitute in traditional technology
Piston rod.
The outer surface interference fit of nut 4 has a bearing 5, bearing 5 and is glued on the inner wall of piston cylinder 1, the setting of bearing 5
Play the role of supporting and fixing, to make nut 4 that can only realize rotation, medical plastic material is can also be used in bearing 5.
The outer surface of piston cylinder 1 is radially fixed to be connected with liquid separatnig tube 7, and the outer surface of piston cylinder 1 offers opening 11, piston
Cylinder 1 is connected to by opening 11 with liquid separatnig tube 7, and the elastomeric closure for closing opening 11 is equipped in liquid separatnig tube 7.
More specifically, elastomeric closure includes block 13 and reset spring 12；Block 13 uses concave character type structure, block 13
Gap passes through liquid separatnig tube 7, and block 13, which is located at gluing between the part in liquid separatnig tube 7 and the inner wall of liquid separatnig tube 7, reset spring 12,
The effect of elastomeric closure is that reset spring 12 drives block 13 to close opening 11 according to its elastic force under normality, in people
Under the pulling of power, the elastic force of reset spring 12 can be overcome to open opening 11.
Liquid separatnig tube 7 is communicated with connecting tube 8 far from one end of piston cylinder 1, and connecting tube 8 is communicated with far from one end of liquid separatnig tube 7
Liquid capsule 9 is communicated with drain pipe 10 in liquid capsule 9, screw thread nut cap is equipped on drain pipe 10.
Further, external screw thread is offered on drain pipe 10, drain pipe 10 is threaded with screw thread nut cap by external screw thread,
The mode stable connection that screw thread nut cap is connected through a screw thread, facilitates opening and closing.
It is worth noting that, the piston motion principle of piston cylinder 1 and piston 2 is common knowledge, details are not described herein again, this reality
The technical issues of with novel solution are as follows: puncture needle can not extract repeatedly and be unable to control drawing liquid amount.
When the utility model is used, the needle portion of piston cylinder 1 is pierced into affected part and carries out drawing liquid, subsequent manpower passes through thumb or thumb
Referring to that the cooperation turn knobs 6 with index finger, knob 6 drive nut 4 to rotate in turn, nut 4 drives stock screw 3 to be axially moved, and
And then piston 2 is pulled, piston 2 extracts chamber liquid after moving.
After to be extracted, block 13 is pulled to the side far from liquid separatnig tube 7 with finger, block 13 is under the action of manpower
The elastic force of reset spring 12 is overcome to move, so that block 13 is removed from opening 11, piston cylinder 1 is connected to liquid separatnig tube 7 at this time,
So that the pressure balance of piston cylinder 1 and liquid separatnig tube 7, therefore the liquid in piston cylinder 1 passes sequentially through liquid separatnig tube 7, company according to gravity
Adapter tube 8 enters in liquid capsule 9, and when liquid is excessive in liquid capsule 9, waste liquid is discharged for unwinding thread nut cap.
Claims (5)
1. a kind of department of cardiac surgery's puncture needle, including piston cylinder (1), which is characterized in that be equipped with and be used in the piston cylinder (1)
The piston (2) of pumping liquid, the piston (2) are connected with driving mechanism, the radially fixed connection in outer surface of the piston cylinder (1)
Have liquid separatnig tube (7), the outer surface of the piston cylinder (1) offers opening (11), and the piston cylinder (1) is by opening (11) and divides
Fluid cylinder (7) connection, the interior elastomeric closure being equipped with for closing opening (11) of the liquid separatnig tube (7), the liquid separatnig tube (7) are remote
One end from piston cylinder (1) is communicated with connecting tube (8), and the connecting tube (8) is communicated with liquid capsule far from the one end of liquid separatnig tube (7)
(9), it is communicated with drain pipe (10) on the liquid capsule (9), screw thread nut cap is installed on the drain pipe (10).
2. a kind of department of cardiac surgery's puncture needle according to claim 1, which is characterized in that the driving mechanism includes stock
Screw (3), nut (4) and knob (6)；
The stock screw (3) is fixedly connected with piston (2), and the nut (4) is rotatably connected on the inner wall of piston cylinder (1),
The stock screw (3) is threadedly coupled with nut (4), and the nut (4), which is located at the part interference fit of piston cylinder (1) outside, rotation
Button (6).
3. a kind of department of cardiac surgery's puncture needle according to claim 2, which is characterized in that the outer surface of the nut (4)
Interference fit has bearing (5), the bearing (5) and is glued on the inner wall of piston cylinder (1).
4. a kind of department of cardiac surgery's puncture needle according to claim 1, which is characterized in that the elastomeric closure includes gear
Block (13) and reset spring (12)；
The block (13) uses concave character type structure, and block (13) gap passes through liquid separatnig tube (7), and the block (13) is located at
Gluing has reset spring (12) between part and the inner wall of liquid separatnig tube (7) in liquid separatnig tube (7).
5. a kind of department of cardiac surgery's puncture needle according to claim 1, which is characterized in that opened up on the drain pipe (10)
There is external screw thread, the drain pipe (10) is threaded with screw thread nut cap by external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201194.1U CN209091561U (en) | 2018-07-27 | 2018-07-27 | A kind of department of cardiac surgery's puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201194.1U CN209091561U (en) | 2018-07-27 | 2018-07-27 | A kind of department of cardiac surgery's puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209091561U true CN209091561U (en) | 2019-07-12 |
Family
ID=67150026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821201194.1U Expired - Fee Related CN209091561U (en) | 2018-07-27 | 2018-07-27 | A kind of department of cardiac surgery's puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209091561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112401987A (en) * | 2020-11-05 | 2021-02-26 | 苏州法兰克曼医疗器械有限公司 | Endoscope puncture needle capable of quantitatively controlling negative pressure |
-
2018
- 2018-07-27 CN CN201821201194.1U patent/CN209091561U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112401987A (en) * | 2020-11-05 | 2021-02-26 | 苏州法兰克曼医疗器械有限公司 | Endoscope puncture needle capable of quantitatively controlling negative pressure |
| CN112401987B (en) * | 2020-11-05 | 2021-12-24 | 苏州法兰克曼医疗器械有限公司 | Endoscope puncture needle capable of quantitatively controlling negative pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 Termination date: 20210727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |