CN207119023U - A kind of backflow attractor for laparoscopic surgery - Google Patents
A kind of backflow attractor for laparoscopic surgery Download PDFInfo
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- CN207119023U CN207119023U CN201720129500.4U CN201720129500U CN207119023U CN 207119023 U CN207119023 U CN 207119023U CN 201720129500 U CN201720129500 U CN 201720129500U CN 207119023 U CN207119023 U CN 207119023U
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- suction
- aspirator tip
- tube
- gas
- suction aspirator
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Abstract
The utility model discloses a kind of backflow attractor for laparoscopic surgery, including Attraction structure and gas return-flow structure, Attraction structure includes suction aspirator tip, suction tube, the port of export of suction aspirator tip is with attracting tube inlet to be connected, the outlet of suction tube is connected with liquid storage bottle and safety flack, the port of export of safety flack is connected with filter, filter outlet end connects piston pump, piston pump is connected with blast pipe, gas backstreaming structure includes the gas backstreaming pipe being connected with exhaust outlet, gas backstreaming pipe is connected with suction aspirator tip, suction aspirator tip is provided with air return plenums, suction tube is provided with intake valve, intake valve is between suction aspirator tip and liquid storage bottle, one-way control valve is installed on blast pipe.Attractor adds gas backstreaming structure, and improvement has been carried out to suction aspirator tip structure makes it be realized with gas backstreaming respective outer side edges during continuous negative pressure suction, maintains intraperitoneal stable gas pressure and keeps clean visual area, beneficial to the progress of laparoscopic surgery.
Description
Technical field
The utility model belongs to technical field of medical instruments, especially a kind of backflow attractor for laparoscopic surgery.
Background technology
At present, attractor is that intraoperative hemorrhage is removed in surgical operation, oozes out important operating theater instruments with flue dust, and it can be protected
It is clear to hold visual area, reduces operating difficulty.As Chinese patent Authorization Notice No. is：Disclosed in CN202666175U《Laparoscope
Operation suction apparatus》, it is applied to suction blood in body and raffinate intraperitoneal, and its structure includes attraction system and flushing
System, as long as attraction system presses water suction valve button, water sucking mouth is connected with sucking pump, is rinsed raffinate and is entered suction out of human body
Pipe, enter water sucking mouth after entering water suction valve body from suction pipe, will rinse outside raffinate discharge human body, realize suction function, decontrol and inhale
Penstock button, under the action of the spring, absorb water valve button and valve body reset, stops attracting；In operation is applied, system is rinsed
As long as system presses inlet valve button, flushing liquid enters water inlet valve body from water inlet, and it is laggard to enter suction seat from water inlet valve body
Enter suction pipe, flushing liquor exits into human body from suction mouth, realizes in human body and rinse, and inlet valve button is decontroled, in spring
In the presence of, inlet valve button and water inlet valve body reset, and stop rinsing；Then raffinate is discharged through water system；Common
Surgical operation in, the blood and raffinate that attract to occur in surgical procedure using traditional attractor, contribute to the progress of operation；
But in the operation carried out in dependent on the chamber established by carbon dioxide, the use of traditional attractor is always one
More intractable problem.Because carrying out laparoscopic surgery in the chamber for relying on carbon dioxide foundation, lasting negative pressure is inhaled
Draw and inevitably cause collapsing for gas chamber, and then influence operation technique, so attraction traditional in laparoscopic surgery
The use of device is limited always, and this is also the operation compared with one of most important defect of abdominal.Herein, author designed one
The new attractor of kind, can keep maintaining intraperitoneal stable gas pressure while clean visual area in continuous negative pressure suction.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of backflow for laparoscopic surgery and attracted
Device, the backflow attractor can be kept maintaining intraperitoneal stable gas pressure while clean visual area during continuous negative pressure suction.
To achieve these goals, the technical solution adopted in the utility model is：A kind of backflow for laparoscopic surgery
Attractor, including Attraction structure, Attraction structure include suction aspirator tip, suction tube, and the port of export of suction aspirator tip is with attracting tube inlet
Connection, the outlet of suction tube are connected with liquid storage bottle and safety flack, and the port of export of safety flack is connected with filter, filter outlet end
Piston pump is connected, piston pump is connected with blast pipe, it is characterised in that：Also include gas backstreaming structure, gas backstreaming structure includes
The gas backstreaming pipe being connected with exhaust outlet, gas backstreaming pipe are connected with suction aspirator tip, and suction aspirator tip leads to provided with gas backstreaming
Road, the suction tube are provided with intake valve, and intake valve is provided with list between suction aspirator tip and liquid storage bottle on the blast pipe
To control valve.Attractor adds gas backstreaming structure, and suction aspirator tip structure improve makes itself and gas backstreaming knot
Structure, which coordinates, to be realized during continuous negative pressure suction, is maintained intraperitoneal stable gas pressure and is kept clean visual area, beneficial to laparoscope
The progress of operation.
Further, the suction aspirator tip is channel structure, respectively fluid passage and air return plenums, and fluid leads to
Road and air return plenums are mutually isolated not UNICOM, and the port of export of fluid passage is connected with suction tube, and air return plenums are close
One end of suction aspirator tip is provided with gas re-entry hole, the other end and the gas backstreaming pipe UNICOM of air return plenums.Suction aspirator tip
Channel structure can be parallel, arranged side by side, can be socketed, and can be the various structures such as straight channel or bending channel, using mutual
The mode of isolation is completed to complete the work for drawing raffinate and gas backstreaming.
Further, the suction aspirator tip includes the internal channel and outer tunnel in inside and outside socket distribution, the internal and external channel point
The fluid passage and air return plenums are not formed.Suction aspirator tip completes to draw raffinate using internal and external channel structure and gas returns
The work of stream.
Further, the suction aspirator tip includes the inner and outer tubes of socket, inner pipe passway and outer tube passage in same with one heart
Axle extends, and inner pipe passway is two communication type structure, and inner pipe passway forms the fluid passage, the arrival end extension of inner pipe passway
To the insertion end of suction aspirator tip, the port of export and the suction tube UNICOM of inner pipe passway, the outer tube passage is two closed configuration, outside
Tube passage is provided with gas re-entry hole close to a side wall of suction aspirator tip insertion end, and outer tube passage is in a side wall of suction tube
Provided with the stub interface being connected with gas his return duct, outer tube passage forms the air return plenums.The inner tube of suction aspirator tip
For drawing gas and liquid in abdominal cavity, conveyed through suction tube, liquid is drained into fluid reservoir, gas continues with exhaust
Pipe is discharged into gas backstreaming pipe and enters in outer tube passage and come back to by gas re-entry hole in abdominal cavity, keeps air pressure in abdominal cavity
It is stable, avoid attractor from also taking away gas therein while the raffinate in siphoning away abdominal cavity so that and abdominal cavity middle chamber collapses,
Influence the progress of operation.
Further, the inner and outer tubes split connection of the suction aspirator tip, inner tube is provided with close to one end of suction tube to be connected
Joint chair, connecting seat one end are connected with suction tube, and the connecting seat other end is extended with connecting tube, and connection pipe outer wall is provided with external screw thread, outside
Tube end is socketed in connecting tube and connected by screw threads for fastening.The structure setting that suction aspirator tip is connected by inner and outer pipes split,
It is easy to dismounting to clean.
Further, outer wall is provided with expansion shoulder on the connecting seat, and the perpendicular end surface of the expansion shoulder forms outer tube
Spacing end face, the external screw thread of the connecting tube extend to connecting tube and perpendicular end surface joining place.Expand shoulder to be located in connecting seat
Portion, the position-limiting action to outer tube end is played, the perpendicular end surface for expanding shoulder refers to expand the shoulder end vertical with inner tube axis
Face.
Further, the outer tube passage is provided with row's gas re-entry hole close to a side wall of suction aspirator tip insertion end,
One row's gas re-entry hole includes the gas re-entry hole that at least three is distributed in regular shape or irregular shape.Wherein regular shape
Such as linear or curve or broken line or circle or ellipse or rhombus or rectangle shape are distributed.
Further, the outer tube passage is close to the tapered structure extension of side outer wall of suction aspirator tip insertion end, the cone
Shape structure end leaves distance between suction aspirator tip insertion end.The setting of the pyramidal structure coordinates suction aspirator tip insertion end to exist
When inserting in abdominal cavity, be advantageous to the smooth entrance of suction aspirator tip, reduce resistance.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing 1 is the utility model specific embodiment structure chart；
Accompanying drawing 2 is the structural representation of the utility model specific embodiment suction aspirator tip；
Accompanying drawing 3 is the utility model specific embodiment connecting base structure figure；
Accompanying drawing 4 is the inner and outer pipes constructional cross sectional view of the utility model specific embodiment suction aspirator tip；
Accompanying drawing 5 is the utility model specific embodiment suction aspirator tip inner tube and connecting base structure figure；
Accompanying drawing 6 is the utility model specific embodiment suction aspirator tip outer tube and connecting base structure figure；
Accompanying drawing 7 is the utility model specific embodiment gas flow direction structure chart；
Suction aspirator tip 1, insertion end 1a, inner tube 11, outer tube 12, pyramidal structure 121, connecting seat 13, connecting tube 131, outer spiral shell
Line 132, expansion shoulder 133, perpendicular end surface 133a, fluid passage 14, air return plenums 15, gas re-entry hole 16, branch connect
Mouth 17, suction tube 2, liquid storage bottle 3, safety flack 4, filter 5, piston pump 6, blast pipe 71, gas backstreaming pipe 72, intake valve 8, list
To control valve 9.
Embodiment
Specific embodiment of the utility model is the backflow attractor for laparoscopic surgery as shown in figs. 1-7, including is inhaled
Guiding structure and gas return-flow structure, Attraction structure include suction aspirator tip 1, suction tube 2, the port of export and the suction tube 2 of suction aspirator tip 1
Entrance connects, and the outlet of suction tube 2 is connected with liquid storage bottle 3 and safety flack 4, and the port of export of safety flack 4 is connected with filter 5, mistake
The port of export of filter 5 connects piston pump 6, and piston pump 6 is connected with blast pipe 71, and gas backstreaming structure includes exporting with blast pipe 71 and connected
The gas backstreaming pipe 72 connect, gas backstreaming pipe 72 are connected with suction aspirator tip 1, and suction aspirator tip 1 is provided with air return plenums 15, are attracted
Pipe 2 is provided with intake valve 8, with air inlet pipe can be connected between certain suction tube 2 and suction aspirator tip 1, by intake valve 8 be arranged on into
On tracheae, intake valve 8 is provided with one-way control valve 9 between suction aspirator tip 1 and liquid storage bottle 3 on blast pipe 71.Attractor increases
Gas backstreaming structure is added, and improvement has been carried out to the structure of suction aspirator tip 1 makes it be realized with gas backstreaming respective outer side edges lasting
During vacuum suction, maintain intraperitoneal stable gas pressure and keep clean visual area, beneficial to the progress of laparoscopic surgery.
Suction aspirator tip 1 is channel structure, respectively fluid passage 14 and air return plenums 15, and fluid passage 14 is gentle
Body return flow line 15 is mutually isolated not UNICOM, and the port of export of fluid passage 14 is connected with suction tube 2, and air return plenums 15 are close
One end of suction aspirator tip 1 is provided with gas re-entry hole 16, the other end and the UNICOM of gas backstreaming pipe 72 of air return plenums 15.Attract
The channel structure of device first 1 can be parallel, arranged side by side, can be socketed, and can be the various structures such as straight channel or bending channel, adopt
Completed to complete the work for drawing raffinate and gas backstreaming with the mode being mutually isolated.
Suction aspirator tip 1 includes the internal channel and outer tunnel in inside and outside socket distribution, and the internal and external channel respectively constitutes fluid and led to
Road 14 and air return plenums 15.Suction aspirator tip 1 is completed to draw the work of raffinate and gas backstreaming using internal and external channel structure.
Suction aspirator tip 1 includes the inner tube 11 of socket and outer tube 12, inner pipe passway and outer tube passage extend in concentric co-axial, interior
Tube passage is two communication type structure, and inner pipe passway forms fluid passage 14, and the arrival end of inner pipe passway extends to suction aspirator tip 1
Insertion end 1a, the port of export of inner pipe passway and the UNICOM of suction tube 2, outer tube passage is two closed configuration, and outer tube passage is close
The insertion end 1a of suction aspirator tip 1 side wall is provided with gas re-entry hole 16, and outer tube passage is provided with close to a side wall of suction tube 2
The stub interface 17 being connected with gas his return duct, outer tube passage form air return plenums 15.The inner tube 11 of suction aspirator tip 1 is used
In drawing gas and liquid in abdominal cavity, conveyed through suction tube 2, liquid is drained into fluid reservoir, gas continues with exhaust
Pipe 71 is discharged into gas backstreaming pipe 72 and enters in outer tube passage and come back to by gas re-entry hole 16 in abdominal cavity, keeps abdominal cavity
Middle stable gas pressure, attractor is avoided also to take away gas therein so that abdominal cavity middle chamber while the raffinate in siphoning away abdominal cavity
Collapse, influence the progress of operation.
The inner tube 11 of suction aspirator tip 1 connects with the split of outer tube 12, and inner tube 11 is provided with connecting seat close to one end of suction tube 2
13, the one end of connecting seat 13 is connected with suction tube 2, and the other end of connecting seat 13 is extended with connecting tube 131, and the outer wall of connecting tube 131 is provided with
External screw thread 132, the end of outer tube 12 are socketed in connecting tube 131 and connected by screw threads for fastening.Suction aspirator tip 1 passes through inner and outer pipes
11st, the structure setting of 12 splits connection, is easy to dismounting to clean.
Outer wall, which is provided with, on connecting seat 13 expands shoulder 133, and the perpendicular end surface 133a of the expansion shoulder 133 forms outer tube 12
Spacing end face, the external screw thread 132 of connecting tube 131 extend to connecting tube 131 and perpendicular end surface 133a joining places.Expand shoulder 133
Positioned at the middle part of connecting seat 13, the position-limiting action to the end of outer tube 12 is played, the perpendicular end surface 133a for expanding shoulder 133 refers to expand
The end face vertical with the axis of inner tube 11 of shoulder 133.
Outer tube passage is provided with row's gas re-entry hole 16, an exhaust body close to the insertion end 1a of suction aspirator tip 1 side wall
Return port 16 includes the gas re-entry hole 16 that at least three is distributed in regular shape or irregular shape.Wherein regular shape is such as in
Straight line or curve or broken line or circle or the shape such as ellipse or rhombus or rectangle are distributed.
Outer tube passage extends close to the insertion end 1a of the suction aspirator tip 1 tapered structure 121 of side outer wall, the pyramidal structure
Distance is left between the insertion end 1a of 121 threshold value suction aspirator tip 1.The setting of the pyramidal structure 121 coordinates suction aspirator tip 1 to insert
Hold 1a to be advantageous to the smooth entrance of suction aspirator tip 1 when inserting in abdominal cavity, reduce resistance.
The operation principle of the attractor is as follows：When attractor starts, dirt enters liquid storage bottle 3, solid and liquid with air-flow
Body dirt can fall into liquid storage bottle 3, and gas fume can be filtered by pneumatic filter 5,（These filters are all traditional attractors
Carry, highly developed design, if dirt can not be filtered effectively, the pump chamber into traditional attractor can bring fatal break
It is bad）, it is back to after the gas discharge filtered through blast pipe 71, gas backstreaming pipe 72, air return plenums 15 intraperitoneal.Unidirectionally
The critical function of control valve 9, it can not only be prevented air and caused air tap into pipeline with the air-tightness of holding meanss
Plug, when attractor is closed, is also prevented from back flow of gas, and this maintenance for attractor close moment Intra- abdominal pressure weighs very much
Will.The effect of intake valve 8 is to keep gas circuit seal when attractor is closed, so need first to close intake valve 8 when closed,
It is then turned off attractor power supply.
The utility model is not limited to above-mentioned embodiment, and persons skilled in the art are public according to the utility model
The content opened, other a variety of embodiments can be used to implement of the present utility model, or every use the utility model
Design structure and thinking, do simple change or change, both fall within the scope of protection of the utility model.
Claims (8)
1. a kind of backflow attractor for laparoscopic surgery, including Attraction structure, Attraction structure includes suction aspirator tip, attracted
Pipe, the port of export of suction aspirator tip is with attracting tube inlet to be connected, and the outlet of suction tube is connected with liquid storage bottle and safety flack, safety flack
The port of export is connected with filter, filter outlet end connection piston pump, and piston pump is connected with blast pipe, it is characterised in that：Also wrap
Gas backstreaming structure is included, gas backstreaming structure includes the gas backstreaming pipe being connected with exhaust outlet, and gas backstreaming pipe is with attracting
Device head connects, and suction aspirator tip is provided with air return plenums, and the suction tube is provided with intake valve, intake valve be located at suction aspirator tip and
Between liquid storage bottle, one-way control valve is installed on the blast pipe.
2. the backflow attractor according to claim 1 for laparoscopic surgery, it is characterised in that：The suction aspirator tip is
Channel structure, respectively fluid passage and air return plenums, fluid passage and air return plenums are mutually isolated not UNICOM,
The port of export of fluid passage is connected with suction tube, and air return plenums are provided with gas re-entry hole, gas close to one end of suction aspirator tip
The other end of body return flow line and gas backstreaming pipe UNICOM.
3. the backflow attractor according to claim 2 for laparoscopic surgery, it is characterised in that：The suction aspirator tip bag
The internal channel and outer tunnel in inside and outside socket distribution are included, the internal and external channel respectively constitutes the fluid passage and gas backstreaming is led to
Road.
4. the backflow attractor according to claim 3 for laparoscopic surgery, it is characterised in that：The suction aspirator tip bag
The inner and outer tubes of socket, inner pipe passway and outer tube passage is included in concentric co-axial to extend, inner pipe passway is two communication type structure,
Inner pipe passway forms the fluid passage, and the arrival end of inner pipe passway extends to the insertion end of suction aspirator tip, and inner pipe passway goes out
Mouth end and suction tube UNICOM, the outer tube passage is two closed configuration, and outer tube passage is close to the side of suction aspirator tip insertion end
Wall is provided with gas re-entry hole, and outer tube passage is provided with the branch being connected with gas his return duct close to a side wall of suction tube and connect
Mouthful, outer tube passage forms the air return plenums.
5. the backflow attractor according to claim 4 for laparoscopic surgery, it is characterised in that：The suction aspirator tip
Inner and outer tubes split connects, and inner tube is provided with connecting seat close to one end of suction tube, and connecting seat one end is connected with suction tube, connection
The seat other end is extended with connecting tube, and connection pipe outer wall is provided with external screw thread, and outer tube end is socketed in connecting tube and tight by screw thread
It is solidly connected.
6. the backflow attractor according to claim 5 for laparoscopic surgery, it is characterised in that：It is outer on the connecting seat
Wall, which is provided with, expands shoulder, and the perpendicular end surface of the expansion shoulder forms the spacing end face of outer tube, the external screw thread extension of the connecting tube
To connecting tube and perpendicular end surface joining place.
7. the backflow attractor according to claim 4 for laparoscopic surgery, it is characterised in that：The outer tube passage leans on
One side wall of nearly suction aspirator tip insertion end is provided with row's gas re-entry hole, and row's gas re-entry hole includes at least three in rule
Shape or the gas re-entry hole of irregular shape distribution.
8. the backflow attractor according to claim 4 for laparoscopic surgery, it is characterised in that：The outer tube passage leans on
The tapered structure of side outer wall of nearly suction aspirator tip insertion end extends, between the pyramidal structure threshold value suction aspirator tip insertion end
Leave distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720129500.4U CN207119023U (en) | 2017-02-14 | 2017-02-14 | A kind of backflow attractor for laparoscopic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720129500.4U CN207119023U (en) | 2017-02-14 | 2017-02-14 | A kind of backflow attractor for laparoscopic surgery |
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| Publication Number | Publication Date |
|---|---|
| CN207119023U true CN207119023U (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720129500.4U Active CN207119023U (en) | 2017-02-14 | 2017-02-14 | A kind of backflow attractor for laparoscopic surgery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917015A (en) * | 2022-04-22 | 2022-08-19 | 湖南医科医工科技有限公司 | Adjustable low negative pressure aspirator |
-
2017
- 2017-02-14 CN CN201720129500.4U patent/CN207119023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917015A (en) * | 2022-04-22 | 2022-08-19 | 湖南医科医工科技有限公司 | Adjustable low negative pressure aspirator |
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