CN209596269U - A kind of medical pressure-adjustable negative-pressure aspirator head - Google Patents
A kind of medical pressure-adjustable negative-pressure aspirator head Download PDFInfo
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- CN209596269U CN209596269U CN201821964932.8U CN201821964932U CN209596269U CN 209596269 U CN209596269 U CN 209596269U CN 201821964932 U CN201821964932 U CN 201821964932U CN 209596269 U CN209596269 U CN 209596269U
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- regulator valve
- pressure
- pressure regulator
- inner cavity
- inner core
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Abstract
The utility model discloses a kind of medical pressure-adjustable negative-pressure aspirator heads, including pressure regulator valve, the pressure regulator valve outer wall is cylindric, and the upper surface middle position of pressure regulator valve is provided with compression inner cavity, and the left end of pressure regulator valve is connected with negative pressure connecting tube, the right end of pressure regulator valve is provided with suction tube, the upper-end inner diameter of the compression inner cavity is smaller, the bottom diameter for compressing inner cavity is larger, and compression inner cavity upper end slidably connects pressure regulator valve inner core, the upper surface of the pressure regulator valve inner core is provided with end cap, and the outer diameter of the end cap is greater than the internal diameter of compression inner cavity upper end, the utility model changes suction size using the adjustable pressure valve of push type, it is easy to operate, vacuum suction can be cut off in time, sealing effect is enhanced simultaneously, it prevents from revealing, practical value with higher.
Description
Technical field
The utility model relates to technical field of medical equipment, specially a kind of medical pressure-adjustable negative-pressure aspirator head.
Background technique
Medical vacuum extractor head is mainly used for absorbing operative site blood, disrupting tissue etc. when operation, keeps operating field
Completely, doctor is facilitated to operate.Aspirator head for medicine includes once connecting the suction tube, pressure regulator valve and negative pressure connecting tube communicated, is born
Connecting tube is pressed to connect negative pressure suction device.
Existing clinically used suction aspirator tip is to open side opening in the middle, presses side opening control using doctor's finger when operation
Suction size processed, but there is certain deficiency in this kind of side opening pressure control, and even if opening wide side opening completely, aspirator head end still has certain suction
When missing the tissue such as blood sampling pipet when power, especially surgical procedure, vacuum suction cannot be quickly cut off in time, often results in certain tissue
Damage；And existing clinical common suction aspirator tip need to close knob switch, operate blunt lack if you need to cut off negative pressure.
Utility model content
The purpose of this utility model is to provide a kind of medical pressure-adjustable negative-pressure aspirator heads, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions:
A kind of medical pressure-adjustable negative-pressure aspirator head, including pressure regulator valve, the pressure regulator valve outer wall are cylindric, and pressure regulator valve
Upper surface middle position be provided with compression inner cavity, and the left end of pressure regulator valve is connected with negative pressure connecting tube, and the right end of pressure regulator valve is set
It is equipped with suction tube, the upper-end inner diameter of the compression inner cavity is smaller, and the bottom diameter for compressing inner cavity is larger, and it is sliding to compress inner cavity upper end
Dynamic to be connected with pressure regulator valve inner core, the upper surface of the pressure regulator valve inner core is provided with end cap, and the outer diameter of the end cap is greater than in compression
The internal diameter of chamber upper end, the intermediate ends of pressure regulator valve inner core are provided with inner core horizontal pipeline, the lower end surface middle position of pressure regulator valve inner core
It is arranged fluted, which is provided with spring, and the lower end surface edge of pressure regulator valve inner core is provided with limited block, the compression
Limiting slot is opened up on the inner wall of inner cavity, limited block is plugged on respectively in corresponding limiting slot, the centre of the inner core horizontal pipeline
Axis is parallel to the medial axis of negative pressure connecting tube and suction tube, and pressure regulator valve inner core is run through in the left and right ends of inner core horizontal pipeline
And be connected to inner cavity of shutting off, the upper end inner wall of pressure regulator valve is arranged in the inner cavity of shutting off, and is provided on the left of inner cavity of shutting off vertical
To conduit, the lower end of the longitudinal duct is connected to negative pressure upper end of connecting tube.
Preferably, the negative pressure connecting tube and suction tube are sealingly mounted at the left and right end face of pressure regulator valve, and negative pressure connecting tube
It is located at same axis with the central axis of suction tube, negative pressure connecting tube and suction tube are vertically mounted on the outer end face of pressure regulator valve, negative pressure
The left end of connecting tube connects negtive-pressure implement.
Preferably, the upper end of the spring is against the groove upper surface in pressure regulator valve inner core lower end face, and the lower end of spring is against
Compress the lower end surface of inner cavity.
Preferably, the lower end minimum point of the inner core horizontal pipeline is parallel with the lower end surface for inner cavity of shutting off.
Compared with prior art, the utility model has the beneficial effects that pressure regulator valve inner core is arranged in the utility model, by pressing
Pressure regulator valve inner core is pressed to realize the compression to spring, so that the connection of inner core horizontal pipeline and negative pressure connecting tube, suction tube, leads to
The inner diameter size of control communicating position is crossed, realizes that controlled suction, between maximum, can cut off suction when accidentally inhaling in time, avoid zero
Accidentally injure tissue；By the way that inner cavity of shutting off is arranged, so that inner core horizontal pipeline is connected in non-pushed closed state with negative pressure connecting tube, and
When the residue in inner core horizontal pipeline is siphoned away, anti-backflow；
When inner core horizontal pipeline is in pressing connected state, between existing between compression inner cavity and pressure regulator valve inner core
Gap will cause blood and overflow to upper end, and be connected to due to shutting off inner cavity with negative pressure connecting tube, so that inner cavity of shutting off has absorption
Power, so that the blood overflowed is timely adsorbed to negative pressure connecting tube from inner cavity of shutting off, it is therefore prevented that the spilling of blood increases sealing
Effect.Compared with prior art, the adjustable pressure valve of utilization push type of the utility model changes suction size, easy to operate fast
Victory can cut off vacuum suction in time, while enhance sealing effect, prevent from revealing, practical value with higher.
Detailed description of the invention
Fig. 1 is the non-pushed closed state schematic perspective view of the utility model；
Fig. 2 is the non-pushed closed state schematic cross-sectional view of the utility model；
Fig. 3 is the pressing connected state schematic perspective view of the utility model；
Fig. 4 is the pressing connected state schematic cross-sectional view of the utility model；
Fig. 5 is the limit slot structure schematic diagram of the utility model.
In figure: in 1 pressure regulator valve, 2 negative pressure connecting tubes, 3 suction tubes, 4 pressure regulator valve inner cores, 5 inner core horizontal pipelines, 6 are shut off
Chamber, 7 springs, 8 limited blocks, 9 compression inner cavities, 10 limiting slots.
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.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, the utility model provides a kind of technical solution:
A kind of medical pressure-adjustable negative-pressure aspirator head, including pressure regulator valve 1,1 outer wall of pressure regulator valve are cylindric, and pressure regulator valve 1
Upper surface middle position be provided with compression inner cavity 9, and the left end of pressure regulator valve 1 is connected with negative pressure connecting tube 2, the right side of pressure regulator valve 1
End is provided with suction tube 3, is connected between the lower end pedestal and upper end outer wall of pressure regulator valve 1 by thread seal, compresses the upper of inner cavity 9
Hold internal diameter smaller, the bottom diameter for compressing inner cavity 9 is larger, and compresses 9 upper end of inner cavity and slidably connect pressure regulator valve inner core 4, pressure regulation
The upper surface of valve inner core 4 is provided with end cap, and the outer diameter of the end cap is greater than the internal diameter of compression 9 upper end of inner cavity, pressure regulator valve inner core 4
Intermediate ends are provided with inner core horizontal pipeline 5, and the lower end surface middle position setting of pressure regulator valve inner core 4 is fluted, which sets
It is equipped with spring 7.
The lower end surface edge of pressure regulator valve inner core 4 is provided with limited block 8, and 1 inner wall lower end of pressure regulator valve is arranged in limited block 8
In limiting slot, and the limiting slot extends to the lower end surface of pressure regulator valve 1, compresses and opens up limiting slot 10, limited block on the inner wall of inner cavity 9
8 are plugged on respectively in corresponding limiting slot 10, by the matching design of limited block 8 and limiting slot 10, can prevent in pressure regulator valve
Core 4 rotates, and limited block 8 is contacted with the lower end inner wall of compression inner cavity 9, and the medial axis of inner core horizontal pipeline 5 is parallel to negative pressure company
The medial axis of adapter tube 2 and suction tube 3, and the left and right ends of inner core horizontal pipeline 5 through pressure regulator valve inner core 4 and with inner cavity of shutting off
6 connections, the upper end inner wall of pressure regulator valve 1 is arranged in inner cavity 6 of shutting off, and the left side for inner cavity 6 of shutting off is provided with longitudinal duct, the longitudinal direction
The lower end of conduit is connected to 2 upper end of negative pressure connecting tube.
Negative pressure connecting tube 2 and suction tube 3 are sealingly mounted at the left and right end face of pressure regulator valve 1, and negative pressure connecting tube 2 and attraction
The central axis of pipe 3 is located at same axis, and negative pressure connecting tube 2 and suction tube 3 are vertically mounted on the outer end face of pressure regulator valve 1, and negative pressure connects
The left end of adapter tube 2 connects negtive-pressure implement.
The upper end of spring 7 is against the groove upper surface of 4 lower end surface of pressure regulator valve inner core, and the lower end of spring 7 is against compression inner cavity 9
Lower end surface.
The lower end minimum point of inner core horizontal pipeline 5 is parallel with the lower end surface of inner cavity 6 of shutting off.
Working principle: the utility model includes negative pressure connecting tube 2, pressure regulator valve 1 and the suction tube 3 for being sequentially connected and communicating.
Negative pressure connecting tube 1 is attached with Negative pressure machine when use, starting Negative pressure machine makes aspirator generate negative pressure, and suction tube 3 is close to hand
Art region, presses the pressure regulator valve inner core 4 on pressure regulator valve 1, and compressed spring 7 makes inner core horizontal pipeline 5 and negative pressure connecting tube 2, attracts
The connection of pipe 3 carries out attraction work.Control pressing dynamics are adjusted inner core horizontal pipeline 5 and are connected to size with suction tube 2
To attracting strength to be adjusted, being fully pressed into bottom keeps attraction maximum.
When inner core horizontal pipeline 5 is in non-pushed closed state, inner core horizontal pipeline 5 is connected to negative pressure connecting tube 2,
Timely the residue in inner core transverse pipe 5 is siphoned away, anti-backflow；When inner core horizontal pipeline 5 is in pressing connected state
When, since there are gaps between compression inner cavity 9 and pressure regulator valve inner core 4, it will cause blood and overflowed to upper end, and due to inner cavity of shutting off
6 are connected to negative pressure connecting tube 2, so that inner cavity 6 of shutting off has adsorption capacity, so that the blood overflowed is timely inhaled from inner cavity 6 of shutting off
It is attached to negative pressure connecting tube 2, it is therefore prevented that the spilling of blood increases the effect of sealing.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of medical pressure-adjustable negative-pressure aspirator head, including pressure regulator valve (1), it is characterised in that: pressure regulator valve (1) outer wall is
It is cylindric, and the upper surface middle position of pressure regulator valve (1) be provided with compression inner cavity (9), and the left end of pressure regulator valve (1) be connected with it is negative
It presses connecting tube (2), the right end of pressure regulator valve (1) is provided with suction tube (3), and the upper-end inner diameter of compression inner cavity (9) is smaller, compression
The bottom diameter of inner cavity (9) is larger, and compresses inner cavity (9) upper end and slidably connect pressure regulator valve inner core (4), the pressure regulator valve inner core
(4) upper surface is provided with end cap, and the outer diameter of the end cap is greater than the internal diameter of compression inner cavity (9) upper end, pressure regulator valve inner core (4)
Intermediate ends are provided with inner core horizontal pipeline (5), and the lower end surface middle position setting of pressure regulator valve inner core (4) is fluted, in the groove
Portion is provided with spring (7), and the lower end surface edge of pressure regulator valve inner core (4) is provided with limited block (8), compression inner cavity (9)
It is opened up on inner wall limiting slot (10), limited block (8) is plugged on respectively in corresponding limiting slot (10), the inner core horizontal pipeline
(5) medial axis is parallel to the medial axis of negative pressure connecting tube (2) Yu suction tube (3), and the left and right of inner core horizontal pipeline (5)
Both ends are connected to through pressure regulator valve inner core (4) and with inner cavity of shutting off (6), upper end of inner cavity of shutting off (6) setting in pressure regulator valve (1)
Inner wall, and it is provided with longitudinal duct on the left of inner cavity of shutting off (6), the lower end and negative pressure connecting tube (2) upper end of the longitudinal duct connect
It is logical.
2. a kind of medical pressure-adjustable negative-pressure aspirator head according to claim 1, it is characterised in that: the negative pressure connecting tube
(2) the left and right end face of pressure regulator valve (1), and the center of negative pressure connecting tube (2) and suction tube (3) are sealingly mounted at suction tube (3)
Axle position is vertically mounted on the outer end face of pressure regulator valve (1), negative pressure connecting tube with suction tube (3) in same axis, negative pressure connecting tube (2)
(2) left end connects negtive-pressure implement.
3. a kind of medical pressure-adjustable negative-pressure aspirator head according to claim 1, it is characterised in that: the spring (7)
Upper end is against the groove upper surface of pressure regulator valve inner core (4) lower end surface, and the lower end of spring (7) is against the lower end surface of compression inner cavity (9).
4. a kind of medical pressure-adjustable negative-pressure aspirator head according to claim 1, it is characterised in that: the inner core transverse pipe
The lower end minimum point in road (5) is parallel with the lower end surface of inner cavity of shutting off (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821964932.8U CN209596269U (en) | 2018-11-27 | 2018-11-27 | A kind of medical pressure-adjustable negative-pressure aspirator head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821964932.8U CN209596269U (en) | 2018-11-27 | 2018-11-27 | A kind of medical pressure-adjustable negative-pressure aspirator head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209596269U true CN209596269U (en) | 2019-11-08 |
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ID=68394873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821964932.8U Expired - Fee Related CN209596269U (en) | 2018-11-27 | 2018-11-27 | A kind of medical pressure-adjustable negative-pressure aspirator head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209596269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023136A (en) * | 2020-09-11 | 2020-12-04 | 中南大学湘雅医院 | Press type surgical suction system with air source |
-
2018
- 2018-11-27 CN CN201821964932.8U patent/CN209596269U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023136A (en) * | 2020-09-11 | 2020-12-04 | 中南大学湘雅医院 | Press type surgical suction system with air source |
| CN112023136B (en) * | 2020-09-11 | 2023-09-15 | 中南大学湘雅医院 | Push type surgical suction system with air source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200615 Address after: 223800 Suqian City, Jiangsu province Sucheng District No. 120 Su branch Patentee after: SUQIAN FIRST Hospital Address before: The city of Suqian in 223800 places in Jiangsu Province branch No. 120 Patentee before: Li Meng |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20211127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |