CN104189994A - Gas injection valve and puncturing device with same - Google Patents
Gas injection valve and puncturing device with same Download PDFInfo
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- CN104189994A CN104189994A CN201410460004.8A CN201410460004A CN104189994A CN 104189994 A CN104189994 A CN 104189994A CN 201410460004 A CN201410460004 A CN 201410460004A CN 104189994 A CN104189994 A CN 104189994A
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Abstract
The invention discloses a gas injection valve and a puncturing device with the gas injection valve. The gas injection valve comprises a valve body, a valve element and a gas discharging button pin. The valve body is provided with a gas outlet capable of being connected with the puncturing device and a gas inlet capable of being connected with an external gas pump, and a gas channel is connected between the gas inlet and the gas outlet. The valve element has the first state for closing the gas channel and a second state for opening the gas channel. The gas discharging button pin can drive the valve element to move to the second state from the first state under the action of external force. The valve element is arranged to be subjected to the force for moving to the first state when in the second state. By means of the structure of the gas injection valve, the operation step of the gas injection valve can be simplified, and the operation efficiency in the puncturing device using process is improved.
Description
Technical field
The invention belongs to manufacture technology field of medical appliance, be specifically related to a kind of gas injection valve and there is the perforator of this gas injection valve.
Background technology
Perforator is a kind ofly to pierce through stomach wall and for other operating theater instruments provide the operating theater instruments that enters body cavity passage, belong to a kind of Minimally Invasive Surgery apparatus.Perforator generally includes as the sleeve assembly of other operating theater instruments admission passages with through the puncturing lever in described sleeve assembly.For transdermal, first cut epiderm skin with scalpel, then exert pressure to the near-end of puncturing lever, promote the most advanced and sophisticated transdermal of described puncturing lever and enter body cavity.Perforator enters body cavity, extracts subsequently puncturing lever out, and sleeve assembly just can be used as the mis instruments passage of carrying out endo-surgical and splanchnoscopy operation.
In actual operation technique, because stomach wall often and between internal organs of the body bonds, cause surgical field of view limited, and affect the operation of mis instruments, therefore enter after body cavity at perforator, conventionally need to pump into noble gas to intraperitoneal with external air pump, to prop up abdominal wall, and provide operative space.In prior art, when needs are during with external air pump gas, by air pump is connected with the gas injection valve on perforator, and open the gas injection pin on gas injection valve, make gas pump into abdominal cavity by perforator; When operation finish or operation process midfield intracavity gas contaminated, and then while affect surgical field of view, need cooperation open the venting pin on gas injection valve, gas can be excreted by perforator.
The problem of bringing is thus that, owing to needing in multiple times gas injection pin and venting pin to be operated in operation process, medical personnel can cause successfully implementing due to maloperation the operation of pump gas and venting unavoidably, and then the efficiency of impact operation.
Summary of the invention
One of object of the present invention is to provide a kind of gas injection valve, and operation when it can simplify pump gas and venting improves operation efficiency.
The present invention also aims to provide a kind of perforator.
One of for achieving the above object, the invention provides a kind of gas injection valve, for perforator, described gas injection valve comprises:
Valve body, is provided with the gas outlet that can be connected with described perforator and the air inlet that can be connected with external air pump on it, between described gas outlet and described air inlet, be connected with gas passage;
Spool, described spool has the first state of the described gas passage of sealing and opens the second state of described gas passage;
Venting button pin, described venting button pin can drive described spool to move to described the second state from described the first state under the effect of external force; Wherein,
Described spool is set to be subject to the power to described the first state motion in the time of described the second state.
As a further improvement on the present invention, when external air pump is from described air inlet during to described gas outlet pump gas, the resultant direction that described spool is subject to is identical to the direction of the second state motion from described the first state with it.
As a further improvement on the present invention, the first flexible member that described spool comprises valve piece and is connected with described valve piece, in described gas passage, be provided with the valve port with described valve piece adaptation, in the time that described spool is positioned at the first state, described valve piece and described valve port offset, in the time that described spool is positioned at the second state, described valve piece and described valve port are separated from one another.
As a further improvement on the present invention, on described venting button pin, be provided with limiting section, described limiting section limits described venting button pin along its axial largest motion distance.
As a further improvement on the present invention, described the first flexible member is conical helical spring.
As a further improvement on the present invention, described venting button pin has the initial position of not interfering with described spool and drives described spool to be positioned at the off-position of the second state, and described venting button pin is set to be subject to the power to described initial position motion in the time of described off-position.
As a further improvement on the present invention, described venting button pin comprises pin rod and is linked in the second flexible member on described pin rod, described pin rod is provided with the first stopper section offseting with described second flexible member one end, and the other end of described the second flexible member is relative with described pin rod fixing.
As a further improvement on the present invention, described venting button pin comprises pin rod and is linked in the second flexible member on described pin rod, described pin rod is provided with the first stopper section, in described valve body, be also provided with the second stopper section, the two ends of described the second flexible member are held in respectively described the first stopper section and described the second stopper section.
As a further improvement on the present invention, described the first stopper section fits in the inwall of described valve body.
For realizing above-mentioned another goal of the invention, the invention provides a kind of perforator, comprise sleeve assembly and through the puncturing lever in described sleeve assembly, the puncture sheath that described sleeve assembly comprises upper cover and fastens with described upper cover, described puncturing lever is connected with described upper cover, it is characterized in that, on described puncture sheath, be connected with gas injection valve as above.
Compared with prior art, gas injection valve provided by the invention is set to when the gas passage of opening in gas injection valve by spool, be subject to the power of state motion of closing this gas passage, therefore when act on valve body external force disappearance time, valve body can be closed gas passage voluntarily, prevents gas leakage; Meanwhile, in the time that needs are exitted, only need to gas passage be reopened by the operation of venting button pin, the operation while having simplified perforator pump gas and venting, have improved operation efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of gas injection valve one embodiment of the present invention;
Fig. 2 is the structural representation of button pin of exitting in gas injection valve one embodiment of the present invention;
Fig. 3 is the structural representation of valve body in gas injection valve one embodiment of the present invention;
Fig. 4 is in gas injection valve one embodiment of the present invention, cutaway view when spool is positioned at the first state;
Fig. 5 is in gas injection valve one embodiment of the present invention, cutaway view when spool is positioned at the second state;
Fig. 6 is the structural representation of perforator one embodiment of the present invention.
Detailed description of the invention
Describe the present invention below with reference to detailed description of the invention shown in the drawings.But these embodiments do not limit the present invention, the conversion in structure, method or function that those of ordinary skill in the art makes according to these embodiments is all included in protection scope of the present invention.
In the present invention, the word of described expression position and direction, is all using exercises on apparatus author as reference, is near-end near one end of operator, is far-end away from one end of operator.
Join Fig. 1 and Fig. 4, introduce a detailed description of the invention of gas injection valve 100 of the present invention.In the present embodiment, this gas injection valve 100 comprises valve body 10, spool 30 and venting button pin 20.
Coordinate with reference to Fig. 2, gas injection valve 100 shown in present embodiment is for perforator, on valve body 10, be provided with the gas outlet 12 that can be connected with perforator and the air inlet 11 that can be connected with external air pump, between this gas outlet 12 and air inlet 11, be connected with gas passage P.
It should be noted that, " the gas passage P " mentioning in present embodiment is not defined as it and distinguishes and standalone configuration with member is around strict, in fact, should " gas passage P " be defined by the inwall of valve body 10, and, should " gas passage P " can be also and surrounding structure between there is not physical separation boundary.
Valve body 10 has formed the general appearance of perforator, in the present embodiment, the valve gap 102 that this valve body 10 comprises main part 101 and is connected with this main part 101, can be for example between main part 101 and valve gap 102 by screw thread screw up, the selectable mode such as buckle is connected.In manufacture process, above-mentioned spool 30 and venting button pin 20 can be arrived in this main part 101 by pre-installation, then valve gap 102 is docked with this main part 101, to realize the integral installation of gas injection valve 100.
Spool 30 has the first state (state shown in Fig. 4) of confining gas passage P and opens the second state (state shown in Fig. 5) of gas passage P.Particularly, in gas passage P, be provided with valve opening 13, the first flexible member 32 that spool 30 comprises valve piece 31 and is connected with valve piece 31, spool 30 is by sealing this valve opening 13 to play the object of confining gas passage P.In the time that spool 30 is positioned at the first state, valve piece 31 offsets with valve opening 13, and in the time that spool 30 is positioned at the second state, valve piece 31 is separated from one another with valve opening 13.
In various possible embodiment, the shape of valve opening 13 and valve piece 31 is preferably set to can be adaptive, for example, valve opening is set to square, and valve piece is set to an area of section and is greater than the rectangular pyramid that the square of valve opening area of section or a base area are greater than valve opening area of section.In present embodiment, valve piece 31 is set to spherical, and the aperture of valve opening 13 is less than the diameter of valve piece 31.Valve opening 13 is roughly truncated cone-shaped, and the lateral wall of valve piece 31 can be fitted on the medial wall of valve opening 13 to stop passing through of gas.
In the present embodiment, spool 30 is set in the time of the second state, be subject to the power to the first state motion, that is to say, in the time moving to the second state under the effect of spool 30 in external force, if now external force is cancelled, spool 30 can return back to the first state voluntarily, and then closes gas passage P.The benefit of doing is like this, using after the depressed bundle of gas injection valve 100 pump, and operator is without gas injection valve 100 is carried out to extra operation, and can be directly external air pump and gas injection valve 100 be disconnected or directly stop the pump gas of external air pump.
The power that spool 30 is subject to first state when motion by the second state comes from fact spool 30 from the first state during to the second state motion, the first flexible member 32 put aside potential energy that suffers oppression.In the present embodiment, the first flexible member 32 preferably adopts conical helical spring, and the shock-absorbing capacity of conical helical spring is better, can bear larger load.And, it will be appreciated that, although in present embodiment, with spool 30, in the time that the first state moves to the second state, the first flexible member 32 suffers oppression and puts aside potential energy is example, technical scheme to the application is set forth, but in the embodiment of more replacements, also spool 30 can be set in the time that the first state moves to the second state, the first flexible member 32 is stretched to put aside potential energy, the embodiment of this kind of replacement, within must working as and belonging to protection scope of the present invention; And, can replace, at some, in other embodiment, the first flexible member 32 can be also to adopt other forms such as such as shell fragment or elastomer etc.
Coordinate with reference to Fig. 2, venting button pin 20 can drive spool 30 to move to the second state from the first state under the effect of external force, on venting button pin 20, is provided with limiting section 212, and these limiting section 212 restriction venting button pins 20 are along its axial largest motion distance.In present embodiment, limiting section 212 is arranged at venting button pin 20 and is matched with the part in valve body 10 outsides, limiting section 212 by with the interference of the valve gap 102 largest motion distance with restriction venting button pin 20.
As preferred embodiment, venting button pin 20 has the initial position (position shown in Fig. 4) of not interfering with spool 30 and drives spool 30 to be positioned at the off-position (position shown in Fig. 5) of the second state, and venting button pin 20 is set to be subject to the power to initial position motion in the time of off-position.Particularly, venting button pin 20 comprises pin rod 21 and is linked in the second flexible member 22 on pin rod 21, and it is relative with pin rod 21 fixing that pin rod 21 is provided with the other end of the first stopper section 211, the second flexible members 22 that offset with second flexible member 22 one end.In the time that External Force Acting is on venting button pin 20, venting button pin 20 compresses the second flexible member 22 by the first stopper section 211 on it, in this process, the second flexible member 22 is put aside potential energy, in the time that external force is cancelled, the second flexible member 22 discharges the potential energy of savings, drives venting button pin 20 to return back to the initial position of not interfering with spool 30.
In the embodiment of another replacement, the first stopper section 211 arranging on pin rod 21, the two ends that are also provided with the second stopper section 14, the second flexible members 22 in valve body 10 support respectively and the first stopper section 211 and the second stopper section 14.In this embodiment, action principle and the above-mentioned embodiment of venting button pin 20 are similar, do not repeat at this.
Preferably, the first stopper section 211 is set to fit in the inwall of valve body 10, and so that the direction of motion of venting button pin 20 is guided, the button pin 20 of guaranteeing to exit coordinates with the accurate of spool 30, improves the reliability of bleed air operation.
In above-mentioned embodiment, this venting button pin 20 can be applied in pump gas and deflation course simultaneously, and the concrete action principle of gas injection valve 100 is as follows:
When needs are during by gas injection valve 100 pump gas, drive spool 30 to move to the second state from the first state by venting button pin 20, gas passage P is opened, and external air pump can be from air inlet 11 to gas outlet 12 pump gas; After pump gas completes, close external air pump, spool 30, voluntarily from the second replying state to the first state and close gas passage P, prevents gas leakage; In the time needing to exit in operation end or operation process, again drive spool 30 to move to the second state from the first state by venting button pin 20, to reopen gas passage P, Intraabdominal gas pressurized adverse current, and discharge outside abdominal cavity by air inlet 11.
In the embodiment being more preferably, when external air pump is from air inlet 11 during to gas outlet 12 pump gas, the resultant direction that spool 30 is subject to is identical to the direction of the second state motion from the first state with it.Also, when pump gas, the gas pumping into can put on a thrust on spool 30, drives spool 30 move to the second state from the first state, and without the driving of the button pin 20 of exitting.In this embodiment, the concrete action principle of gas injection valve 100 is as follows:
When needs are during by gas injection valve 100 pump gas, the gas-powered spool 30 pumping into from air inlet 11 moves to the second state from the first state, and gas passage P is opened, the gas pumping into and then can pump into intraperitoneal from gas outlet 12; After pump gas completes, close external air pump, spool 30, voluntarily from the second replying state to the first state and close gas passage P, prevents gas leakage; In the time needing to exit in operation end or operation process, again drive spool 30 to move to the second state from the first state by venting button pin 20, to reopen gas passage P, Intraabdominal gas pressurized adverse current, and discharge outside abdominal cavity by air inlet 11.
Join Fig. 6, introduce a detailed description of the invention of perforator 200 of the present invention.In the present embodiment, this perforator 200 comprises sleeve assembly (do not indicate) and through the puncturing lever 203 in sleeve assembly, the puncture sheath 202 that this sleeve assembly comprises upper cover 201 and fastens with upper cover, the near-end of puncturing lever 203 is fixedly connected with this upper cover 201.On puncture sheath 202, be connected with the gas injection valve 100 of introducing in above-mentioned embodiment.
In use procedure, by upper cover 201 application of forces to perforator 200, puncturing lever 203 transdermals also enter body cavity, extract puncturing lever 203 out puncture sheath 202 subsequently by upper cover 201; Connect gas injection valve 100 with external air pump and carry out pump gas, gas enters body cavity by the gas passage P in gas injection valve 100 and puncture sheath 202, to prop up abdominal wall, now, puncture sheath 202 can be used as the mis instruments passage of carrying out endo-surgical and splanchnoscopy operation.
Owing to not relating in the application the improvement in perforator 200 other part-structures or function, therefore all the other structures of perforator are not also repeated.
The present invention is by above-mentioned embodiment, there is following beneficial effect: gas injection valve 100 provided by the invention is by being set to spool 30 when the gas passage P opening in gas injection valve 100, be subject to the power of moving to the state of closing this gas passage P, therefore in the time acting on external force on valve body 10 and disappear, valve body 10 can be closed gas passage P voluntarily, prevents gas leakage; Meanwhile, in the time that needs are exitted, only need to gas passage P be reopened by the operation of venting button pin 20, the operation while having simplified perforator pump gas and venting, have improved operation efficiency.
Be to be understood that, although this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present invention; they are not in order to limit the scope of the invention, all do not depart from the equivalent embodiment that skill spirit of the present invention does or change and all should be included in protection scope of the present invention within.
Claims (10)
1. a gas injection valve, for perforator, is characterized in that, described gas injection valve comprises:
Valve body, is provided with the gas outlet that can be connected with described perforator and the air inlet that can be connected with external air pump on it, between described gas outlet and described air inlet, be connected with gas passage;
Spool, described spool has the first state of the described gas passage of sealing and opens the second state of described gas passage;
Venting button pin, described venting button pin can drive described spool to move to described the second state from described the first state under the effect of external force; Wherein,
Described spool is set to be subject to the power to described the first state motion in the time of described the second state.
2. gas injection valve according to claim 1, is characterized in that, when external air pump is from described air inlet during to described gas outlet pump gas, the resultant direction that described spool is subject to is identical to the direction of the second state motion from described the first state with it.
3. gas injection valve according to claim 1, it is characterized in that, the first flexible member that described spool comprises valve piece and is connected with described valve piece, in described gas passage, be provided with the valve port with described valve piece adaptation, in the time that described spool is positioned at the first state, described valve piece and described valve port offset, and in the time that described spool is positioned at the second state, described valve piece and described valve port are separated from one another.
4. gas injection valve according to claim 3, is characterized in that, on described venting button pin, is provided with limiting section, and described limiting section limits described venting button pin along its axial largest motion distance.
5. gas injection valve according to claim 3, is characterized in that, described the first flexible member is conical helical spring.
6. gas injection valve according to claim 1, it is characterized in that, described venting button pin has the initial position of not interfering with described spool and drives described spool to be positioned at the off-position of the second state, and described venting button pin is set to be subject to the power to described initial position motion in the time of described off-position.
7. gas injection valve according to claim 6, it is characterized in that, described venting button pin comprises pin rod and is linked in the second flexible member on described pin rod, described pin rod is provided with the first stopper section offseting with described second flexible member one end, and the other end of described the second flexible member is relative with described pin rod fixing.
8. gas injection valve according to claim 6, it is characterized in that, described venting button pin comprises pin rod and is linked in the second flexible member on described pin rod, described pin rod is provided with the first stopper section, in described valve body, be also provided with the second stopper section, the two ends of described the second flexible member are held in respectively described the first stopper section and described the second stopper section.
9. according to the gas injection valve described in claim 7 or 8, it is characterized in that, described the first stopper section fits in the inwall of described valve body.
10. a perforator, comprise sleeve assembly and through the puncturing lever in described sleeve assembly, the puncture sheath that described sleeve assembly comprises upper cover and fastens with described upper cover, described puncturing lever is connected with described upper cover, it is characterized in that, on described puncture sheath, be connected with the gas injection valve as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460004.8A CN104189994B (en) | 2014-09-11 | 2014-09-11 | Gas injection valve and puncturing device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460004.8A CN104189994B (en) | 2014-09-11 | 2014-09-11 | Gas injection valve and puncturing device with same |
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| Publication Number | Publication Date |
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| CN104189994A true CN104189994A (en) | 2014-12-10 |
| CN104189994B CN104189994B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410460004.8A Active CN104189994B (en) | 2014-09-11 | 2014-09-11 | Gas injection valve and puncturing device with same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721651A (en) * | 2018-06-27 | 2018-11-02 | 北京大学深圳医院 | The preparation facilities of lipid ultrasonic microbubble contrast agent |
| CN109549691A (en) * | 2018-09-29 | 2019-04-02 | 江苏风和医疗器材股份有限公司 | Sealing element and puncture outfit for puncture outfit |
| CN117205080A (en) * | 2023-11-07 | 2023-12-12 | 德宝恒生科技服务有限公司 | Dispensing device, gas storage method, and gas dispensing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288568B (en) * | 2018-09-29 | 2020-06-26 | 江苏风和医疗器材股份有限公司 | Puncture outfit |
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| Publication number | Publication date |
|---|---|
| CN104189994B (en) | 2017-05-24 |
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Address after: 213000 block B, 26 Huashan Middle Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Jiangsu jianruibao Medical Technology Co., Ltd Address before: Hutang Town, Jiangsu city of Changzhou Province, 213001 New Road No. 256 Jiangsu Wujin Science Park building 7A Patentee before: CHANGZHOU HEALTHYPOWER MEDICAL INSTRUMENT Co.,Ltd. |