CN208910272U - A kind of negative pressure device of conduit - Google Patents
A kind of negative pressure device of conduit Download PDFInfo
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- CN208910272U CN208910272U CN201821115602.1U CN201821115602U CN208910272U CN 208910272 U CN208910272 U CN 208910272U CN 201821115602 U CN201821115602 U CN 201821115602U CN 208910272 U CN208910272 U CN 208910272U
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- rotating bar
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- clamping joint
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Abstract
The utility model relates to medical instruments fields, specifically disclose a kind of negative pressure device of conduit, including shell, rotating bar is rotatably connected in shell, the part that rotating bar is stretched out outside shell is fixedly connected with handle, torsional spring is equipped between rotating bar and shell, winding is equipped with drawstring in rotating bar, the both ends of drawstring have been respectively fixedly connected with piston, piston is equipped with pressure spring between the side and shell of rotating bar, piston is fixed with spring far from the side of rotating bar, the free end of spring is fixedly connected with valve plate, the position of side face of the valve plate far from spring is equipped with clamping joint on shell, the discharge port gone out for clot is additionally provided on shell, discharge port is equipped with discharging check valve.Easily the sludged blood for blocking tee tube can be sucked out using this programme, while the present apparatus can also be used for multiple times.
Description
Technical field
The utility model relates to medical instruments fields, specifically disclose a kind of negative pressure device of conduit.
Background technique
Either routine physical examination or sick inspection, blood test are all the physical examination sets that a most people can select
One of big event of meal.But since individual physique is different, physical condition is also not very identical, for example the blood of some patients is viscous
The reasons such as coagulating platelets can generate sludged blood when consistency is very high or draws blood, so usually will appear on bloodletting tube when blood drawing
The blocked situation of tee tube, the prior art are that after the first opening that tee tube is connected with human body is closed, syringe etc. is filled
Set the third open communication with tee tube, then manually pull syringe negative pressure is formed in syringe, thus by sludged blood from
It is sucked out in tee tube, pulls when this method practical operation the movement of syringe to strangle very much hand and will lead to hand and ache very much and behaviour can not be continued
Make, so arrange two nurses even more individually usually to pull syringe that sludged blood is sucked out in turn, so the party
Method very labor intensive and time, also allow Health care staff very painful.
Utility model content
The utility model is intended to provide a kind of negative pressure device of conduit, and easily the sludged blood for blocking tee tube can be sucked out
Come, while the present apparatus can also be used for multiple times.
In order to achieve the above objectives, the base case of the utility model is as follows: a kind of negative pressure device of conduit, including shell and
It is slidably connected at the intracorporal piston of shell, rotating bar is rotatably connected in shell, the part that rotating bar is stretched out outside shell is fixedly connected
Have handle, opened through-hole in rotating bar, winding is equipped with drawstring in rotating bar, drawstring pass through the both ends of through-hole and drawstring respectively with
The upper surface of piston connects, and piston is fixed with pressure spring between the side and shell of rotating bar, between rotating bar and shell
It is fixed with torsional spring；
Piston is fixed with spring far from the side of rotating bar, and the lower end of spring is fixedly connected with valve plate, and shell is additionally provided with
Clamping joint, clamping joint and valve plate face are simultaneously connected to shell；
The discharge port for sludged blood outflow is additionally provided on shell, discharge port is located at the side of clamping joint, and discharge port is equipped with
Discharge check valve.
The principle and advantage of this programme are: when bloodletting tube is blocked by sludged blood, bloodletting tube being connected to clamping
On head, the first enclosure space is formed between bloodletting tube and shell.Rotational handle loosens the drawstring in rotating bar, and piston loses
Going after the active force of drawstring can be mobile to the direction of clamping joint under the action of pressure spring, until valve plate and clamping joint will be against will be clamped
After head is blocked, valve plate separates bloodletting tube and shell to form the second enclosure space inside housings, if piston is also continuing
Mobile, piston can be squeezed out the gas in the second enclosure space outside shell by discharging check valve.Handle, rotating bar are decontroled at this time
The rotation to set back can be done under the action of torsional spring, so that drawstring is wrapped in rotating bar again, drawstring pulls piston to make
Piston does the movement far from clamping joint, and piston driving spring is mobile, and spring drives valve plate mobile, thus by bloodletting tube and the second envelope
It closes space connection and forms the first enclosure space again, a negative pressure can be formed when piston continues to move in shell, to will take out
Sludged blood in blood vessel is pumped into shell.
1) this programme only needs for bloodletting tube to be caught in the clamping joint of negative pressure device, and being rotated further by handle can be in shell
A negative pressure is formed to take out a sludged blood.And in the prior art, negative pressure is formed thus by blood coagulation by manually twitching piston
Block extraction, it needs individually nurse's power to be arranged to extract sludged blood out waste of manpower；And artificial piston handle of repeatedly twitching is easy to hand
Pain, so sludged blood is taken out in often several nurse's rotations.Compared with the prior art, the mode of this programme rotational handle more easily saves
Power, it is not necessary to waste the time of multiple nurses, save the time for medical treatment；
2) this programme can use air caused by extruding of the piston to clamping joint direction when mobile to enclosure interior gas
The sludged blood of suction is blown out shell by flow process, is cleaned to realize to a kind of negative pressure device of conduit, is made it can
With nonexpondable purpose；
3) rotating bar when not in use, can be turned to the state that valve plate is resisted against on clamping joint, make impurity not by this programme
It can enter in shell, to guarantee the cleaning inside of negative pressure device；And rotating bar is turned to valve plate and is resisted against clamping by holding
State behind head position can make the operation of the utility model more simple and fast, and when operation only needs bloodletting tube being caught in clamping joint,
Then rotating bar is unclamped, rotating bar can reset under the drive of torsional spring, and then do with piston far from clamping joint direction
It is mobile, make formation negative pressure in shell start to inhale sludged blood.Bloodletting tube is caught in negative pressure device to start to take out and coagulate i.e. in this programme
Clot after moving a certain distance without pistons such as first rotational handles to clamping joint direction, then decontrols handle and starts to take out sludged blood.
Further, the one end of the clamping joint far from valve plate is along axial direction there are the gap for tightening, and clamping joint is far from valve
The outer surface of one end of plate is equipped with protrusion, also slidably connects sleeve on clamping joint, and tension spring, set are equipped between sleeve and protrusion
The inner surface of the clamping joint of cylinder face is equipped with arc groove, and the gap for tightening is located at the side of arc groove.
It arc groove is set can be matched with the curved flanges on tee tube so as to avoid tee tube and taken off from clamping joint
It falls, and sleeve forms clamping device outside clamping joint, and clamping joint is tightened the second opening for making tee tube and clamping joint
Stable links together.
Further, the arc groove rubber layer high using leakproofness.
Curved flanges can be accommodated using rubber layer setting arc groove to make tee tube be stably connected with clamping joint and
The sealing being able to achieve between the second opening and clamping joint, avoids gas leakage.
Further, the valve plate is fixed with the sealant for enhancing air-tightness far from the side of piston.
Valve plate is used to control the opening and closing of clamping joint, and sealant is arranged on valve plate can guarantee that valve plate can close completely clamping joint
It closes, ensure that not having impurity entrance when the present apparatus is not used causes device internal environment contaminated.
Further, the sealant is rubber ring, and rubber ring is embedded in valve plate.
It not only can guarantee that valve plate can be tightly connected with clamping joint using rubber ring, but also sealing material can be saved.
Further, the rotating bar is crank rotating bar, is fixed on the shell for clamping crank rotating bar
Bayonet.
Crank rotating bar can be rotated and be clamped on a position afterwards to a certain degree, so that medical staff only needs when in use
Crank rotating bar is taken off from bayonet directly, crank rotating bar rotation band piston can be realized and form negative pressure in shell and open
The purpose of beginning absorption sludged blood.So that the work of absorption sludged blood is more simple and convenient.
Detailed description of the invention
Fig. 1 is a kind of main sectional view of the negative pressure device embodiment one of conduit of the utility model；
Fig. 2 is the structural schematic diagram of tee tube in the utility model embodiment one；
Fig. 3 is the cross-sectional view of A-A in the utility model Fig. 1；
Fig. 4 is the structural schematic diagram of rotating bar and pin hole in the utility model embodiment two.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: shell 1, rotating bar 2, through-hole 3, piston 4, drawstring 5, pressure spring 6, handle
7, spring 8, discharging check valve 9, valve plate 10, clamping joint 11, protrusion 12, tension spring 13, sleeve 14, arc groove 15, first are open
16, the second opening 17, third opening 18, curved flanges 19, pin hole 20.
Embodiment is substantially as shown in Fig. 1: a kind of negative pressure device of conduit, shell 1 and work including vertical sliding connection
4 are filled in, the rotating bar 2 being laterally arranged is rotatably connected in shell 1, the part that rotating bar 2 is stretched out outside shell 1 is welded with handle 7, turns
Through-hole 3 is opened in lever 2, the both ends of rotating bar 2 are wound respectively is equipped with a drawstring 5, by taking the drawstring 5 on right side as an example, drawstring 5
Specific setting it is as follows, drawstring 5 is across through-hole 3 and the both ends of drawstring 5 are fixedly connected with the upper surface of piston 4 respectively.On piston 4
It is fixedly connected with pressure spring 6 between surface and shell 1, is fixedly connected with torsional spring between rotating bar 2 and shell 1, so that drawstring 5 is normal
It is wrapped in rotating bar 2 that pressure spring 6 is made to be in compressive state under state.
The lower surface of piston 4 is welded with spring 8, and the lower end of spring 8 is welded with valve plate 10, in the present embodiment, valve plate 10
The position of lower surface face clamping joint 11 is fixedly connected with rubber ring, and rubber ring is embedded into the lower surface of valve plate 10.Specifically set
Set as follows, integrally formed with annular receiving groove, rubber ring is fixedly connected on for the position of the lower surface face clamping joint 11 of valve plate 10
In annular receiving groove.Shell 1 is additionally provided with clamping joint 11, and specific setting is as follows, and the lower end edge of clamping joint is axial, and there are as shown in Figure 3
The gap for tightening, the lower end of clamping joint 11 also slidably connects sleeve integrally formed with protrusion 12, the top of protrusion 12
14, it is fixedly connected with tension spring 13 between sleeve 14 and protrusion 12, specific setting is as follows, and the lower end of tension spring 13 is located in protrusion 12,
And tension spring 13 is under normal conditions, the lower surface of sleeve 14 and the upper surface abutting contact of protrusion 12.14 face of sleeve under normal conditions of tension spring 13
Clamping joint 11 inner surface on integrally formed with arc groove 15, the downside of arc groove 15 is located at for the gap of tightening.
In the present embodiment, the rubber layer high using leakproofness of arc groove 15.
The discharge port for sludged blood outflow is opened on left side side wall on shell 1, is fixedly connected with discharging on discharge port
Check valve 9, discharging check valve 9 are used to make gas and sludged blood in shell 1 can only be flowed to outside shell 1 out of shell 1.
As shown in Fig. 2, with a kind of tee tube that the negative pressure device of conduit is connected of the utility model include first opening 16,
Second opening 17, third opening 18 and valve, valve, which is used to control first the 16, second opening 17 of opening, and third is open 18 opens
It closes, integrally formed with curved flanges 19 on the outer surface of the second opening 17.
Specific implementation process is as follows: the valve for first rotating three-way pipeline closes the first opening 16 of tee tube, and first is opened
Mouth 16 is connected with bloodletting needle, and third opening 18 is connected to heparin tube.Then it opens the first opening 16 and closes the second opening 17,
It can start to draw blood.
When bloodletting tube is blocked by sludged blood, the valve for rotating tee tube closes the first opening 16, then by second
Opening 17 is connected on clamping joint 11, and concrete operations are as follows, and by 14 upward sliding of sleeve, the second opening 17 is then filled in clamping
In first 11, when curved flanges 19 reach 15 position of arc groove after decontrol sleeve 14, sleeve 14 can under the action of tension spring 13 to
Lower movement, while the lower end of radial compaction clamping joint 11 is to make curved flanges 19 be stuck in arc groove 15, to realize
Second opening 17 is sealed with clamping joint 11 and is removably attachable to together.At this point, in the lower half of bloodletting tube and shell 1
/ form the first enclosure space.
Rotational handle 7 loosens the drawstring 5 in rotating bar 2, and piston 4 can be in pressure spring 6 after losing the active force of drawstring 5
It is mobile to the direction of clamping joint 11 under effect, until valve plate 10 and clamping joint 11 are after blocking the second opening 17, valve plate 10
The lower half of shell 1 and bloodletting tube are separated into two parts, to form the second enclosure space inside shell 1, piston 4 after
It is continuous when moving down, can compressed spring 8 gas in the second enclosure space is squeezed out outside shell 1 by discharging check valve 9 simultaneously.
Rotating bar 2 can do the rotation to set back under the action of torsional spring after decontroling handle 7, so that drawstring 5 be twined again
It is wound in rotating bar 2, drawstring 5, which will pull piston 4, moves up piston 4, and piston 4 drives spring 8 mobile, and spring 8 drives valve
Plate 10 is mobile, forms the first enclosure space again so that the second opening 17 is connected to the second enclosure space, piston 4 continues up
Movement can form a negative pressure in the first enclosure space, so that the sludged blood in bloodletting tube is pumped into shell 1.
And in the present solution, because torsional spring restore elastically-deformable active force can continuous action on drawstring 5, and then drive and live
Plug 4 continues to move to a direction, continues firmly to keep after pulling the piston 4 of syringe manually with nurse is needed in the prior art
Piston 4 is not slided back by vacuum suction and is compared, and this programme, which does not need nurse, to be continued to exert oneself, to reduce the physical strength labor of nurse
Traverse degree decreases the Health care staff of operation, to reduce medical treatment cost.
It after sludged blood adsorbs, rotational handle 7 can also be moved down again with piston 4, piston 4 is to moving down
The gas in 1 lower half portion of shell can be squeezed when dynamic blows gas from the gas in 1 lower half portion of shell from discharging check valve 9
Out, it is mobile that the air-flow that piston 4, which moves down, can push down on sludged blood, and be formed when gas blowout will drive sludged blood, and finally leads to
Discharging check valve 9 is crossed to blow out sludged blood in shell 1, thus after realizing sludged blood being adsorbed onto shell 1, it can be to shell 1
The purpose that inside is cleared up.So a kind of negative pressure device of conduit of the utility model may be reused.
Embodiment two
As shown in figure 4, the difference between this embodiment and the first embodiment lies in rotating bar 2 is crank rotating bar, 1 outer surface of shell
It is welded with the bayonet for clamping crank rotating bar.Specific setting on shell 1 below rotating bar 2 as shown in figure 4, opened
Pin hole 20, when rotating bar 2 turn to valve plate 10 and clamping joint 11 against after, bolt is inserted into pin hole 20, and make bolt
Right end and the vertical portion of rotating bar 2 lean, resetted under the action of torsional spring so as to avoid rotating bar 2.So not
When using the present apparatus, rotating bar 2 can be turned to the state that valve plate 10 is resisted against on clamping joint 11, fill a kind of negative pressure of conduit
Impurity will not be entered in setting, guarantee the cleaning inside shell 1；Meanwhile when bloodletting tube is caught in clamping joint 11, rotation is directly unclamped
Bar 2 can be such that piston 4 moves up to form the purpose of negative pressure in the first enclosure space.So with being needed in embodiment one
After first rotational handle 7 makes piston 4 move down certain distance, then decontrol handle 7 start adsorb sludged blood compare, the present embodiment energy
Realize bloodletting tube be caught in clamping joint 11 can start adsorb sludged blood, so this programme energy more convenient and quicker carry out absorption blood coagulation
The work of block.
Above-described is only the embodiments of the present invention, the common sense such as well known specific structure and/or characteristic in scheme
It does not describe excessively herein.It should be pointed out that for those skilled in the art, before not departing from the utility model design
It puts, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not shadow
Ring effect and patent practicability that the utility model is implemented.This application claims protection scope should be in its claim
Subject to appearance, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (6)
1. a kind of negative pressure device of conduit, it is characterised in that: including shell and be slidably connected at the intracorporal piston of shell, turn in shell
Dynamic to be connected with rotating bar, the part that rotating bar is stretched out outside shell is fixedly connected with handle, through-hole, rotating bar has been opened in rotating bar
Upper winding is equipped with drawstring, and drawstring passes through through-hole and the both ends of drawstring are connect with the upper surface of piston respectively, and piston is close to rotating bar
Side and shell between be fixed with pressure spring, torsional spring is fixed between rotating bar and shell；
Piston is fixed with spring far from the side of rotating bar, and the lower end of spring is fixedly connected with valve plate, and shell is additionally provided with clamping
Head, clamping joint and valve plate face are simultaneously connected to shell；
The discharge port for sludged blood outflow is additionally provided on shell, discharge port is located at the side of clamping joint, and discharge port is equipped with discharging
Check valve.
2. a kind of negative pressure device of conduit according to claim 1, it is characterised in that: the clamping joint far from valve plate one
Along axial direction there are the gap for tightening, the outer surface of the one end of clamping joint far from valve plate is equipped with protrusion at end, goes back on clamping joint
Sleeve is slidably connected, tension spring is equipped between sleeve and protrusion, the inner surface of the clamping joint of sleeve face is equipped with arc groove,
The gap for tightening is located at the side of arc groove.
3. a kind of negative pressure device of conduit according to claim 2, it is characterised in that: the arc groove uses leakproofness
High rubber layer.
4. a kind of negative pressure device of conduit according to claim 1, it is characterised in that: side of the valve plate far from piston
It is fixed with the sealant for enhancing air-tightness.
5. a kind of negative pressure device of conduit according to claim 4, it is characterised in that: the sealant is rubber ring and rubber
Cushion rubber is embedded in valve plate.
6. a kind of negative pressure device of conduit according to claim 4, it is characterised in that: the rotating bar is crank rotation
Bar is fixed with the bayonet for clamping crank rotating bar on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115602.1U CN208910272U (en) | 2018-07-13 | 2018-07-13 | A kind of negative pressure device of conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115602.1U CN208910272U (en) | 2018-07-13 | 2018-07-13 | A kind of negative pressure device of conduit |
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| Publication Number | Publication Date |
|---|---|
| CN208910272U true CN208910272U (en) | 2019-05-31 |
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ID=66694026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821115602.1U Active CN208910272U (en) | 2018-07-13 | 2018-07-13 | A kind of negative pressure device of conduit |
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| CN (1) | CN208910272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215556A (en) * | 2019-06-15 | 2019-09-10 | 南阳市中心医院 | A kind of division of respiratory disease alveolar wass device |
-
2018
- 2018-07-13 CN CN201821115602.1U patent/CN208910272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215556A (en) * | 2019-06-15 | 2019-09-10 | 南阳市中心医院 | A kind of division of respiratory disease alveolar wass device |
| CN110215556B (en) * | 2019-06-15 | 2021-06-15 | 南阳市中心医院 | Pneumology department's alveolar lavage device |
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