CN208464757U - A kind of negative pressure aspirator - Google Patents
A kind of negative pressure aspirator Download PDFInfo
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- CN208464757U CN208464757U CN201721781054.1U CN201721781054U CN208464757U CN 208464757 U CN208464757 U CN 208464757U CN 201721781054 U CN201721781054 U CN 201721781054U CN 208464757 U CN208464757 U CN 208464757U
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- housing
- core bar
- negative pressure
- flange
- core
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Abstract
The utility model provides a kind of negative pressure aspirator, it includes housing, piston, core bar and locking system, the housing is cylindrical in shape, the first end of the housing is provided with pump orifice, the piston is arranged in the housing, cooperation is sealed with the housing with being reciprocally moveable, the first end of the core bar protrudes into the housing, it is connect with the piston, the second end of the core bar stretches out in outside the housing, the locking system is movably disposed in the second end of the housing, locking system core bar described in first state locking is mobile to the first end of the housing, the core bar described in the second states thereof.Negative pressure aspirator provided by the embodiment of the utility model is provided with locking system, so as to realize the locking of the core bar in aspiration procedure, staff's Suspend Job in aspiration procedure is aloowed, does not need to be continuously applied pulling force, therefore do not need the auxiliary of other staff.
Description
Technical field
The utility model relates to medical instruments field, especially a kind of negative pressure aspirator.
Background technique
Injector for medical purpose is also often used to aspiration medicinal liquid or body other than injecting purposes in routine clinical therapeutic process
Liquid purposes.Since the operations such as beauty or breast reconstruction increasingly increase, and autologous fat transplantation is also mainly becoming for beauty treatment
Gesture, syringe are commonly used in beauty treatment.Clinician must be by other positions of operator's body before carrying out fat transfer
Extraction living body fat transfer is orthopedic to play the role of part to art area.Often when extracting living body fat self by operator
It connects bodkin pipe using syringe to aspirate the autologous fat pre-processed, since ordinary syringe does not have clamping lock control
Device, liposuction doctor can only manually maintain syringe negative-pressure aspiration procedure, this feels operator during whole operation
Hand is very tired, time-consuming and laborious when extraction fat mass is larger often by two people's alternate operations.
Summary of the invention
In view of the deficiencies of the prior art, the utility model aim is to provide a kind of relatively labor-saving negative pressure aspirator.
On the one hand the utility model provides a kind of negative pressure aspirator comprising housing, piston, core bar and locking system, institute
State that housing is cylindrical in shape, the first end of the housing is provided with pump orifice, and the piston is arranged in the housing, with the housing
Sealing cooperation with being reciprocally moveable, the first end of the core bar protrudes into the housing, it is connect with the piston, the core bar
Second end stretches out in outside the housing, and the locking system is movably disposed in the second end of the housing, the locking dress
It is mobile to the first end of the housing to set the core bar described in first state locking, the core bar described in the second states thereof.
As the further improvement of above-described embodiment, the second end of the housing is provided with flange, the locking system packet
Lock ring is included, the lock ring is hinged on the flange, and the lock ring has snap-in structure, and the snap-in structure is in first state
Engage with the flange, the flange is detached from the second state.
As the further improvement of above-described embodiment, the snap-in structure includes the wide c-type lip interconnected and narrow c-type
Lip, in first state, the narrow c-type lip is located at the side of first end of the flange close to the housing, the width c-type lip
The side of first end positioned at the flange far from the housing, the core bar in the radial direction, the lip of the width c-type lip
While relative to the narrow c-type lip lip closer to the core bar central axis.
As the further improvement of above-described embodiment, the backstop of the restricted lock ring rotational angle is set on the lock ring
Portion.
As the further improvement of above-described embodiment, the locking system includes bolt, and the bolt is from the housing
The central axis direction of housing described in side direction is inserted into.
As the further improvement of above-described embodiment, the second end of the housing is provided with flange, and the housing is close to institute
It states and offers through-hole on the side wall of flange, the bolt is inserted into the through-hole.
As the further improvement of above-described embodiment, the jam plate of protrusion is provided on the core bar, the locking system exists
Backstop is in the jam plate close to the side of the first end of the housing when first state.
As the further improvement of above-described embodiment, the core bar is provided with multiple jam plates along its axially spaced-apart.
As the further improvement of above-described embodiment, the core bar includes bar core, and the multiple jam plate is connected to the bar
It on core and is arranged in parallel, multiple stiffener plates is additionally provided between adjacent two jam plate, the multiple stiffener plate is connected to institute
It states on bar core side wall and being provided at circumferentially spaced along the bar core, adjacent two jam plate of both ends connection of the stiffener plate is described
The width of the first end of stiffener plate is greater than the width of second end, and the width of the jam plate is greater than the width of the stiffener plate
Degree.
As the further improvement of above-described embodiment, the jam plate is rounded, and the center of circle is located on the central axis of the core bar,
And the jam plate is perpendicular to the central axis of the core bar.
Negative pressure aspirator provided by the embodiment of the utility model is provided with locking system, so as to realize in aspiration procedure
The locking of middle core bar aloows staff's Suspend Job in aspiration procedure, does not need to be continuously applied pulling force, therefore not
Need the auxiliary of other staff.
Detailed description of the invention
Fig. 1 is the lock state structural schematic diagram of negative pressure aspirator provided by the embodiment of the utility model；
Fig. 2 is the non-locking state structural schematic diagram of negative pressure aspirator provided by the embodiment of the utility model；
Fig. 3 is the top view of negative pressure aspirator provided by the embodiment of the utility model；
Fig. 4 is the cross-sectional view of the N-N line along Fig. 3.
Specific embodiment
Technical solution described in the utility model is described in further detail in the following with reference to the drawings and specific embodiments, with
So that those skilled in the art is better understood the utility model and can be practiced, but illustrated embodiment is not as to this
The restriction of utility model.
Referring to figs. 1 to Fig. 4, the utility model embodiment provides a kind of negative pressure aspirator comprising housing 1, piston 2, core
Bar 4 and locking system 3.For housing 1 in substantially cylindrical, the first end of housing 1 is provided with pump orifice 11, and the protrusion of pump orifice 11 is set
It sets, for sucking air or other substances, the second end of housing 1 has opening.Piston 2 is arranged in housing 1, can with housing 1
Suction is realized in reciprocatingly sealing cooperation.The first end of core bar 4 protrudes into housing 1, connect with piston 2, and band piston 2 exists
It is moved back and forth in housing 1.The second end of core bar 4 stretches out in outside housing 1, and the end of the second end of core bar 4 is provided with by hand 5, just
It is operated in user.Locking system 3 is movably disposed in the second end of housing 1, the locking core in first state of locking system 3
Bar 4 is mobile to the first end of housing 1, in the second states thereof core bar 4.
Referring to FIG. 1, locking system 3 cannot be to the first end of housing 1 by 4 locking of core bar, core bar 4 in first state
It is mobile, but can be mobile to the second end of housing 1.Referring to FIG. 2, locking system 3 is moved relative to housing 1 in the second state
It moves to unlocked position, no longer locking core bar 4, core bar 4 can be moved back and forth relative to housing 1 at this time, be aspirated.Work as operator
Because locking system 3 being moved to lock position, then decontrols core bar 4, core bar 4 when long-time suction, which relatively being tired out, needs bait
It will not retract because of negative pressure to the second end of housing 1.After rest, when can continue suction, locking system 3 is moved to unlock
Position can continue to twitch core bar 4.
In a preferred embodiment, the second end of housing 1 is provided with flange 12, and flange 12 can be with the main part of housing 1
It is integrally formed.Locking system 3 includes lock ring, and lock ring is hinged on flange 12 by articulated shaft 31.Lock ring has snap-in structure,
When first state, snap-in structure engages with flange 12, is fixed on flange 12, and locking core bar 4, in the second state, lock
Ring turns to unlocked position relative to flange 12, is detached from flange 12.
Referring to FIG. 2, in a further preferred embodiment, snap-in structure includes the wide c-type lip 32 and narrow C interconnected
Type lip 33.Wide c-type lip 32 and narrow c-type lip 33 are spaced apart in the height direction, thus in wide c-type lip 32 and narrow c-type lip
Card slot is formed between 33.Referring to FIG. 4, in first state, narrow c-type lip 33 is located at first end of the flange 12 close to housing 1
Side, wide c-type lip 32 are located at the side of first end of the flange 12 far from housing 1, and flange 12 is thus stuck in wide c-type lip 32 and narrow
Between c-type lip 33.Core bar 4 in the radial direction, the lip of wide c-type lip 32 relative to narrow c-type lip 33 lip closer to core
The central axis of bar 4, therefore a part of the opening of 1 second end of housing is sealed, thus by 4 locking of core bar.
Referring to FIG. 2, the stopper section of restricted lock ring rotational angle is arranged in a further preferred embodiment, on lock ring
34.After lock ring has rotated certain angle relative to flange 12, stopper section 34 is abutted with the side wall of flange 12, to prevent lock ring
It continues to rotate.
In another preferred embodiment, locking system includes bolt (not shown), side direction housing 1 of the bolt from housing 1
Central axis direction insertion.Bolt can be N-shaped bolt or template bolt etc., can open up through-hole on the side wall 13 of housing 1.?
When first state, bolt passes through through-hole and protrudes into housing 1, by 4 locking of core bar.In the second state, bolt is displaced outwardly, is made
It solves lock core pole 4, so that core bar 4 be allow freely to move back and forth in housing 1.
In a further preferred embodiment, the second end of housing 1 is provided with flange 12, and housing 1 is close to the side of flange 12
Through-hole is offered on wall 13, bolt is inserted into through-hole.Namely bolt is set close to flange 12 close to the side of the first end of housing 1
It sets.In further embodiments, bolt can be set in the side of first end of the flange 12 far from housing 1.
In a preferred embodiment, the jam plate 42 of protrusion is provided on core bar 4, the backstop in first state of locking system 3 exists
Jam plate 42 is close to the side of the first end of housing 1, thus by 4 locking of core bar.The size of jam plate 42 substantially with the internal diameter phase of housing 1
Deng.In a further preferred embodiment, core bar 4 is provided with multiple jam plates 42 along its axially spaced-apart, therefore core bar 4 can be existed
Different positions carries out locking, more convenient operation.
In a preferred embodiment, core bar 4 includes bar core 41, and bar core 41 is generally cylindrical, and multiple jam plates 42 are connected to bar
It on core 41 and is arranged in parallel, multiple stiffener plates 43 longitudinally extended along core bar 4 is additionally provided between adjacent two jam plate 42, it is more
A stiffener plate 43 is connected to being provided at circumferentially spaced on the side wall of bar core 41 and along bar core 41.It is more on the cross section of core bar 4
A stiffener plate 43 is arranged centered on bar core 41 in radioactivity.The both ends of stiffener plate 43 connect adjacent two jam plate 42, are used for
Reinforce the intensity of core bar 4.The width of the first end (i.e. close to the end of the first end of housing 1) of stiffener plate 43 be greater than its second
The width of (end of the first end i.e. far from housing 1) is held, and the width of jam plate 42 is greater than the width of stiffener plate 43,.
In a further preferred embodiment, jam plate 42 is rounded, and the internal diameter of diameter and housing 1 is roughly equal, jam plate
42 center of circle is located on the central axis of core bar 4, and jam plate 42 is perpendicular to the central axis of core bar 4.
Negative pressure aspirator provided by the embodiment of the utility model is provided with locking system, so as to realize in aspiration procedure
The locking of middle core bar aloows staff's Suspend Job in aspiration procedure, does not need to be continuously applied pulling force, therefore not
Need the auxiliary of other staff.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of negative pressure aspirator, which is characterized in that including housing, piston, core bar and locking system, the housing is cylindrical in shape,
The first end of the housing is provided with pump orifice, and the piston is arranged in the housing, is reciprocally moveable ground with the housing
Sealing cooperation, the first end of the core bar are protruded into the housing, are connect with the piston, and the second end of the core bar stretches out in
Outside the housing, the locking system is movably disposed in the second end of the housing, and the locking system is in first state
Core bar described in locking is mobile to the first end of the housing, the core bar described in the second states thereof.
2. negative pressure aspirator as described in claim 1, which is characterized in that the second end of the housing is provided with flange, described
Locking system includes lock ring, and the lock ring is hinged on the flange, and the lock ring has snap-in structure, and the snap-in structure exists
Engage when first state with the flange, the flange is detached from the second state.
3. negative pressure aspirator as claimed in claim 2, which is characterized in that the snap-in structure includes the wide c-type interconnected
Lip and narrow c-type lip, in first state, the narrow c-type lip is located at the side of first end of the flange close to the housing, institute
State the side that wide c-type lip is located at first end of the flange far from the housing, the core bar in the radial direction, the width
The lip of c-type lip relative to the narrow c-type lip lip closer to the core bar central axis.
4. negative pressure aspirator as claimed in claim 2, which is characterized in that the restricted lock ring rotation is arranged on the lock ring
The stopper section of angle.
5. negative pressure aspirator as described in claim 1, which is characterized in that the locking system includes bolt, the bolt from
The central axis direction of housing described in the side direction of the housing is inserted into.
6. negative pressure aspirator as claimed in claim 5, which is characterized in that the second end of the housing is provided with flange, described
Housing offers through-hole on the side wall of the flange, and the bolt is inserted into the through-hole.
7. such as negative pressure aspirator as claimed in any one of claims 1 to 6, which is characterized in that be provided with protrusion on the core bar
Jam plate, the locking system in first state backstop in the jam plate close to the side of the first end of the housing.
8. negative pressure aspirator as claimed in claim 7, which is characterized in that the core bar is provided with multiple institutes along its axially spaced-apart
State jam plate.
9. negative pressure aspirator as claimed in claim 8, which is characterized in that the core bar includes bar core, and the multiple jam plate connects
It connects on the bar core and is arranged in parallel, multiple stiffener plates, the multiple reinforcing rib are additionally provided between adjacent two jam plate
Plate is connected on the bar core side wall and being provided at circumferentially spaced along the bar core, the both ends connection adjacent two of the stiffener plate
Jam plate, the width of the first end of the stiffener plate is greater than the width of second end, and the width of the jam plate is greater than the reinforcement
The width of gusset.
10. negative pressure aspirator as claimed in claim 7, which is characterized in that the jam plate is rounded, and the center of circle is located at the core bar
Central axis on, and the jam plate is perpendicular to the central axis of the core bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721781054.1U CN208464757U (en) | 2017-12-19 | 2017-12-19 | A kind of negative pressure aspirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721781054.1U CN208464757U (en) | 2017-12-19 | 2017-12-19 | A kind of negative pressure aspirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208464757U true CN208464757U (en) | 2019-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721781054.1U Active CN208464757U (en) | 2017-12-19 | 2017-12-19 | A kind of negative pressure aspirator |
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| CN (1) | CN208464757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107961402A (en) * | 2017-12-19 | 2018-04-27 | 广州科荟泽生物科技有限公司 | A kind of negative pressure aspirator |
-
2017
- 2017-12-19 CN CN201721781054.1U patent/CN208464757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107961402A (en) * | 2017-12-19 | 2018-04-27 | 广州科荟泽生物科技有限公司 | A kind of negative pressure aspirator |
| CN107961402B (en) * | 2017-12-19 | 2024-04-26 | 广州科荟泽生物科技有限公司 | Negative pressure aspirator |
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