CN209220345U - A kind of automatic puncture of anterior chamber pumping device of negative pressure - Google Patents
A kind of automatic puncture of anterior chamber pumping device of negative pressure Download PDFInfo
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- CN209220345U CN209220345U CN201821915672.5U CN201821915672U CN209220345U CN 209220345 U CN209220345 U CN 209220345U CN 201821915672 U CN201821915672 U CN 201821915672U CN 209220345 U CN209220345 U CN 209220345U
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- Prior art keywords
- vacuum tube
- aqueous humor
- embedded
- slot
- negative pressure
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Abstract
The utility model relates to technical field of medical equipment, more particularly, to a kind of automatic puncture of anterior chamber pumping device of negative pressure, the utility model includes conveying device, vacuum tube and pipe cap, conveying device includes syringe needle and hard tube, the upper surface of pipe cap is offered through slot, and hard tube contacts at the bottom of vacuum inside pipe wall far from one end of syringe needle, is offered on the outer wall of hard tube and is embedded slot, it is embedded in slot and is equipped with opening and closing device, be connected with pushing meanss on vacuum tube.When medical staff needs to acquire aqueous humor, syringe needle is pierced into eyeball, open the opening and closing device that closing is embedded slot, aqueous humor will be entered constantly in hard tube under the drive of vacuum tube negative pressure, until reaching normal pressure in vacuum tube, if there is the case where syringe needle blocking during aqueous humor acquisition, using pushing meanss by the aqueous humor reverse flow in hard tube, so as to efficiently solve the problem of aqueous humor blocks syringe needle.The utility model can efficiently solve the problem of aqueous humor blocking syringe needle.
Description
Technical field
The utility model relates to technical field of medical equipment, fill more particularly, to a kind of automatic puncture of anterior chamber drawing liquid of negative pressure
It sets.
Background technique
Aqueous humor is filled with a kind of transparent clear liquid before eyes, in back room, it is generated by ciliary body is prominent, in medical treatment
In the process, the aqueous humor that doctor needs to extract patient's eyes carries out medical laboratory, and evacuated collection is exactly common acquisition and storage
Deposit the vessel of aqueous humor sample.
By retrieval, Chinese patent notification number CN205924299U discloses a kind of aqueous humor materials and collection device, including
Puncture of anterior chamber aqueous humor sampling device and negative pressure of vacuum collecting pipe, puncture of anterior chamber aqueous humor sampling device is by paracentesis needle protection pipe
Cap, paracentesis needle, hand holding handle, aqueous humor drainage channel, humor collection needle, humor collection needle gum cover are constituted, and negative pressure of vacuum is collected
Pipe is sealed by rubber ring, enters anterior chamber by puncturing aqueous humor sampling device, connection negative pressure of vacuum collecting pipe realization aqueous humor materials,
Integration is collected in packing, and the complication such as anterior chamber caused by avoiding artificial swabbing pressure excessive or unevenness collapses, tissue damage have
Effect improves the safety and convenience of aqueous humor tissue sampling and collection.
Prior art among the above has the following deficiencies: when entering vacuum under drive of the aqueous humor in vacuum tube negative pressure
When in pipe, syringe needle is possible to the case where blocking, and evacuated collection at this time will be unable to the aqueous humor for extracting specified amount.
Utility model content
In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a kind of automatic puncture of anterior chamber drawing liquids of negative pressure
Device can efficiently solve the problem of aqueous humor blocks syringe needle.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of automatic anterior chamber of negative pressure
Tapping device is set to the pipe cap outside vacuum tube including conveying device, vacuum tube and sliding sleeve, and conveying device includes for adopting
For storing the hard tube of aqueous humor, the upper surface of pipe cap is offered to be worn for hard tube for the syringe needle and the fixed syringe needle that is connected to that collect aqueous humor
It through slot, is offered on the outer wall of hard tube through hard tube and is embedded slot, be embedded in slot and be equipped with for being opened and closed the opening and closing for being embedded slot
Device is connected on vacuum tube so that aqueous humor reverse flow in hard tube is to solve the pushing meanss of syringe needle blocking.
By using above-mentioned technical proposal, when medical staff needs to acquire aqueous humor, syringe needle is pierced into eyeball, opens envelope
The opening and closing device for being embedded slot is closed, so that being embedded slot exposing, hard tube will be connected to vacuum tube, and aqueous humor is under the drive of vacuum tube negative pressure
It will constantly enter in hard tube, until reaching normal pressure in vacuum tube, if there is syringe needle blocking during aqueous humor acquisition
Situation, using pushing meanss by the aqueous humor reverse flow in hard tube, so as to efficiently solve asking for aqueous humor blocking syringe needle
Topic.
The utility model is further arranged to: vacuum tube offers the cunning through vacuum tube wall far from one end of pipe cap
Slot, pushing meanss include the sealing ring being fixed in sliding slot and sliding be embedded at it is powerful for changing vacuum tube internal pressure in sealing ring
Small slide bar.
It, can be by slide bar if there is the case where syringe needle blocking during aqueous humor extracts by using above-mentioned technical proposal
It is slided towards the direction close to pipe cap, increases the pressure in vacuum tube, so that the aqueous humor reverse flow in hard tube, so as to
The problem of efficiently solving aqueous humor blocking syringe needle, and slide bar can the certain journey of acquisition dosage progress to aqueous humor when slide in sliding slot
The adjusting of degree, sealing ring make vacuum tube be not easy to carry out gas exchanges with outside air, to ensure that normally making for vacuum tube
With.
The utility model is further arranged to: slide bar is fixed with close to one end of pipe cap contacts at vacuum inside pipe wall bottom
First limited block.
By using above-mentioned technical proposal, when slide bar slides into a certain distance away from the direction of pipe cap, first
Limited block will contact at the bottom of vacuum inside pipe wall, avoids slide bar and is detached from sliding slot, to ensure that normally making for vacuum tube
With.
The utility model is further arranged to: vacuum tube is equipped with briquetting and several are in the promotion dress being circumferentially arranged
It sets, all slide bars are both secured in same briquetting far from one end of pipe cap.
By using above-mentioned technical proposal, when needing that slide bar is pushed to make the aqueous humor reverse flow in hard tube, dress is pushed
Several have been installed, has efficiently solved the problems, such as to decrease the distance of sliding bar while aqueous humor blocks syringe needle, more just
Just medical staff operates, and can be slided slide bar along close to the direction of pipe cap by pressing briquetting, and briquetting increases
Area is pressed, so that pressing process is more stable, and improves comfort level when pressing.
The utility model is further arranged to: briquetting is fixed with the of control slide bar skidding distance close to one end of pipe cap
Two limited blocks.
By using above-mentioned technical proposal, when pushing slide bar to slide into a certain distance along the direction close to pipe cap,
Second limited block will contact at the outer wall of vacuum tube, efficiently solve the problems, such as also to control cunning while aqueous humor blocks syringe needle
The skidding distance of bar.
The utility model is further arranged to: opening and closing device includes being embedded to be embedded in slot for closing the rubber for being embedded slot
It encloses and for driving rubber ring mobile so that being embedded the pressing lever of slot exposing, rubber ring fixing sleeve is set to outside pressing lever, very
It is offered on the side wall of blank pipe and slides the through-hole being embedded for pressing lever.
By using above-mentioned technical proposal, when needing to acquire aqueous humor using vacuum tube, syringe needle is pierced into eyeball, pressing
Pressing lever, so that pressing lever slides in through-hole, rubber ring be will be disengaged from being embedded slot, so that being embedded slot exposing, hard tube will be connected to
In vacuum tube, under the drive of vacuum tube negative pressure, aqueous humor be will go into hard tube.
The utility model is further arranged to: rubber ring is fixedly embedded in vacuum tube, the inner wall of rubber ring is pushed against in hard
The outer wall of pipe.
By using above-mentioned technical proposal, the inner wall of rubber ring is pushed against in the outer wall of hard tube, enhances the sealing of vacuum tube
Property, so that vacuum tube is not easy to that gas exchanges occur with external, it is effectively guaranteed the normal use of vacuum tube.
The utility model is further arranged to: several are fixed on the outer wall of pipe cap in circumferential setting for increasing friction
The friction block of coefficient.
By using above-mentioned technical proposal, friction block increases the coefficient of friction between finger and pipe cap, is convenient for pipe cap
It is removed from vacuum tube, it is practical.
In conclusion the utility model has the following beneficial effects:
1. the aqueous humor in hard tube can be passed through conveying device reverse flow, so as to effectively by the setting of pushing meanss
Solve the problems, such as that aqueous humor blocks syringe needle；
2. the setting of the first limit block and the second limit block, has efficiently controlled the skidding distance of slide bar, and avoids cunning
Bar is detached from sliding slot, ensure that the normal use of vacuum tube；
3. the setting of opening and closing device ensure that the leakproofness of vacuum tube.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pumping device in the utility model embodiment；
Fig. 2 is in the utility model embodiment for indicating that the structure of the cross-sectional view pushing meanss of vacuum tube internal structure is shown
It is intended to；
Fig. 3 is in the utility model embodiment for indicating the cross-sectional view of opening and closing device.
In figure: 1, conveying device；11, syringe needle；12, hard tube；121, it is embedded slot；2, vacuum tube；21, sliding slot；22, through-hole；
23, rubber ring；3, pipe cap；31, run through slot；32, friction block；4, opening and closing device；41, rubber ring；42, pressing lever；5, dress is pushed
It sets；51, sealing ring；52, slide bar；53, the first limited block；54, briquetting；55, the second limited block.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of automatic puncture of anterior chamber pumping device of negative pressure, including conveying device 1, vacuum tube 2 and pipe cap 3,
3 sliding sleeve of pipe cap is set to outside vacuum tube 2, several are fixed on the outer wall of pipe cap 3 in circumferential setting friction block 32, friction block 32
The coefficient of friction between finger and pipe cap 3 is increased, convenient for removing pipe cap 3 from vacuum tube 2.
Conveying device 1 includes the syringe needle 11 and the fixed hard tube 12 for being connected to syringe needle 11 and being used to store aqueous humor of acquisition aqueous humor,
The diameter of syringe needle 11 is 25G, length 2mm.
As shown in Figures 2 and 3, the upper surface of pipe cap 3 is offered through slot 31, and hard tube 12 is passed through from slot 31, very
Rubber ring 23 is fixedly embedded in blank pipe 2, the inner wall of rubber ring 23 is pushed against in the outer wall of hard tube 12, enhances the close of vacuum tube 2
Feng Xing is effectively guaranteed the normal use of vacuum tube 2 so that vacuum tube 2 is not easy to that gas exchanges occur with external.
Hard tube 12 contacts at the bottom of 2 inner wall of vacuum tube far from one end of syringe needle 11, offers and passes through on the outer wall of hard tube 12
Be through at hard tube 12 is embedded slot 121, is embedded in slot 121 and is equipped with opening and closing device 4.
Opening and closing device 4 includes being embedded at the rubber ring 41 being embedded in slot 121 and the fixed pressing being embedded in rubber ring 41
Bar 42, rubber ring 41 are embedded slot 121 for closing, and through-hole 22 is offered on the side wall of vacuum tube 2, and the sliding of pressing lever 42 is embedded at
In through-hole 22.
When medical staff presses pressing lever 42, pressing lever 42 will be slided along through-hole 22, so that it is embedded the exposing of slot 121,
Hard tube 12 will be connected to vacuum tube 2, and water flow enters into hard tube 12 under the drive of 2 negative pressure of vacuum tube, when aqueous humor is inhaled into
When volume in hard tube 12 reaches 0.1ml, normal pressure, extraction of the vacuum tube 2 by stopping to aqueous humor are up in vacuum tube 2.
Vacuum tube 2 offers the sliding slot 21 through 2 wall of vacuum tube far from one end of pipe cap 3, is connected with and pushes away on vacuum tube 2
Dynamic device 5, pushing meanss 5 include the slide bar 52 that the sealing ring 51 being fixed in sliding slot 21 is embedded in sealing ring 51 with sliding,
Sealing ring 51 is used to guarantee the leakproofness of vacuum tube 2, so that vacuum tube 2 is not easy to external generation gas exchanges, slide bar 52 is close
In seal 51 when sliding, the size of pressure in vacuum tube 2 will be changed so that the aqueous humor in hard tube 12 can reverse flow, to solve
The case where syringe needle 11 of having determined blocks.
Slide bar 52 is fixed with the first limited block 53 for contacting at 2 inner wall bottom of vacuum tube close to one end of pipe cap 3, when will slide
When bar 52 is pulled to certain distance away from the direction of pipe cap 3, the first limited block 53 will contact at the inner wall of vacuum tube 2, have
The sliding distance for controlling to effect slide bar 52, avoids slide bar 52 from skidding off out of vacuum tube 2, ensure that the normal use of slide bar 52.
Vacuum tube 2 is equipped with briquetting 54 and several are in the pushing meanss 5 being circumferentially arranged, and it is stifled to efficiently solve aqueous humor
The distance of the sliding of slide bar 52, more convenient medical staff's operation are decreased while filling in 11 problem of syringe needle.
All slide bars 52 are both secured in same briquetting 54 far from one end of pipe cap 3, by pressing briquetting 54
Slide bar 52 to be slided along close to the direction of pipe cap 3, briquetting 54 increases pressing area, so that pressing process is more stable,
Comfort level when pressing is improved, and avoids slide bar 52 completely into arriving in vacuum tube 2, ensure that the normal use of slide bar 52
Briquetting 54 is fixed with the second limited block 55 close to one end of pipe cap 3, when pressing briquetting 54 makes briquetting 54
When sliding into a certain distance along the direction close to pipe cap 3, the second limited block 55 will contact at the outer wall of vacuum tube 2, effectively
Ground controls the sliding distance of slide bar 52.
Briquetting 54 and the second limited block 55 are discoid, and the diameter of briquetting 54 is greater than the straight of the second limited block 55
Diameter pulls convenient for the direction by briquetting 54 away from pipe cap 3.
The implementation principle of the present embodiment are as follows: when medical staff needs to acquire aqueous humor, syringe needle 11 is inserted into eyeball, and
Pressing pressing lever 42 slides pressing lever 42 along through-hole 22, and rubber ring 41 will be disengaged from being embedded slot 121, so that being embedded slot
121 are exposed, and hard tube 12 will be connected to vacuum tube 2, and aqueous humor will constantly enter hard tube 12 under the drive of 2 negative pressure of vacuum tube
It is interior, when the volume that aqueous humor is inhaled into hard tube 12 reaches 0.1ml, normal pressure is up in vacuum tube 2, vacuum tube 2 will stop
Extraction to aqueous humor just completes the collection process of aqueous humor at this time.
During aqueous humor acquisition, if the extraction amount of aqueous humor is not up to 0.1ml and syringe needle 11 blocks, pressable is pressed
Briquetting 54, so that three slide bars 52 are slided towards the direction close to pipe cap 3, so that the pressure in vacuum tube 2 is increased, so that
Aqueous humor reverse flow in hard tube 12, so as to efficiently solve the problem of aqueous humor blocks syringe needle 11.
It, can be by slide bar 52 along separate when the pressure of vacuum tube 2 reaches the dosage still deficiency of normal pressure and aqueous humor acquisition
The direction of pipe cap 3 is slided, and is reduced the pressure in vacuum tube 2, so that the intracorporal aqueous humor of people is inhaled into hard tube 12, is realized
Adjusting to the acquisition dosage of aqueous humor.
The embodiment of present embodiment is the preferred embodiment of the utility model, is not limited according to this of the invention
Protection scope, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the utility model
Protection scope within.
Claims (8)
1. a kind of automatic puncture of anterior chamber pumping device of negative pressure, including conveying device (1), vacuum tube (2) and sliding sleeve are set to vacuum
Manage the pipe cap (3) of (2) outside, it is characterised in that: the conveying device (1) includes for acquiring the syringe needle of aqueous humor (11) and fixed company
Syringe needle (11) are passed through for storing the hard tube (12) of aqueous humor, the upper surface of the pipe cap (3) is offered to be worn for hard tube (12)
Through slot (31), being embedded slot (121) through hard tube (12) is offered on the outer wall of the hard tube (12), it is described to be embedded slot
(121) it is equipped in for being opened and closed the opening and closing device (4) for being embedded slot (121), is connected on the vacuum tube (2) so that hard tube (12)
Interior aqueous humor reverse flow is to solve the pushing meanss (5) that syringe needle (11) block.
2. the automatic puncture of anterior chamber pumping device of a kind of negative pressure according to claim 1, it is characterised in that: the vacuum tube
(2) one end far from pipe cap (3) offers the sliding slot (21) through vacuum tube (2) wall, and the pushing meanss (5) include fixing
In in sliding slot (21) sealing ring (51) and sliding be embedded at it is powerful small for changing vacuum tube (2) internal pressure in sealing ring (51)
Slide bar (52).
3. the automatic puncture of anterior chamber pumping device of a kind of negative pressure according to claim 2, it is characterised in that: the slide bar (52)
One end close to pipe cap (3) is fixed with the first limited block (53) for contacting at vacuum tube (2) inner wall bottom.
4. the automatic puncture of anterior chamber pumping device of a kind of negative pressure according to claim 2, it is characterised in that: the vacuum tube
(2) briquetting (54) are equipped with and several are in the pushing meanss (5) being circumferentially arranged, all slide bars (52) are far from pipe cap
(3) one end is both secured on same briquetting (54).
5. the automatic puncture of anterior chamber pumping device of a kind of negative pressure according to claim 4, it is characterised in that: the briquetting
(54) one end close to pipe cap (3) is fixed with second limited block (55) of control slide bar (52) skidding distance.
6. the automatic puncture of anterior chamber pumping device of a kind of negative pressure according to claim 2, it is characterised in that: the opening and closing device
It (4) include being embedded to be embedded in slot (121) for closing the rubber ring (41) for being embedded slot (121) and for driving rubber ring (41)
It is mobile that so that being embedded the pressing lever (42) of slot (121) exposing, rubber ring (41) fixing sleeve is set to pressing lever (42) outside,
It is offered on the side wall of the vacuum tube (2) and slides the through-hole (22) being embedded for pressing lever (42).
7. the automatic puncture of anterior chamber pumping device of a kind of negative pressure according to claim 1, it is characterised in that: the vacuum tube
(2) it is fixedly embedded at rubber ring (23) in, the inner wall of the rubber ring (23) is pushed against in the outer wall of hard tube (12).
8. the automatic puncture of anterior chamber pumping device of a kind of negative pressure according to claim 1, it is characterised in that: the pipe cap (3)
Outer wall on be fixed with several in the circumferential friction block (32) being arranged for increasing coefficient of friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915672.5U CN209220345U (en) | 2018-11-20 | 2018-11-20 | A kind of automatic puncture of anterior chamber pumping device of negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821915672.5U CN209220345U (en) | 2018-11-20 | 2018-11-20 | A kind of automatic puncture of anterior chamber pumping device of negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209220345U true CN209220345U (en) | 2019-08-09 |
Family
ID=67503601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821915672.5U Expired - Fee Related CN209220345U (en) | 2018-11-20 | 2018-11-20 | A kind of automatic puncture of anterior chamber pumping device of negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209220345U (en) |
-
2018
- 2018-11-20 CN CN201821915672.5U patent/CN209220345U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190809 Termination date: 20211120 |