CN204484239U - Negative pressure suction device - Google Patents
Negative pressure suction device Download PDFInfo
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- CN204484239U CN204484239U CN201520144839.2U CN201520144839U CN204484239U CN 204484239 U CN204484239 U CN 204484239U CN 201520144839 U CN201520144839 U CN 201520144839U CN 204484239 U CN204484239 U CN 204484239U
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- suction device
- pressure suction
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Abstract
The utility model discloses a kind of negative pressure suction device, comprise the sheath pipe of vacuum extractor, convergent divergent channel, hollow; Described sheath pipe is formed by connecting by near-end sheath pipe and distal sheath pipe, is provided with movable sealing lid at the near-end of near-end sheath pipe, and described convergent divergent channel can be inserted by the near-end of near-end sheath pipe and extends to the far-end of distal sheath pipe and convergent divergent channel is fixed on near-end sheath pipe; Described near-end sheath pipe is connected with the side pipe of at least 2 hollows, described vacuum extractor is connected to one of them side pipe one end away from sheath pipe.This utility model aims to provide a kind of negative pressure suction device that can remove calculus effective, convenient, accurately and efficiently, and this negative pressure suction device can also be used for removing of the foreign body of human intracavity and the tissue of excision simultaneously.
Description
Technical field
This utility model relates to field of medical device, particularly a kind of processing ease, structure simple, remove the high negative pressure suction device of efficiency.
Background technology
Renal calculus and the cholelithiasis puzzlement mankind are for a long time.Calculus is present in the complication that urethra or biliary tract cause, and usually needs surgical operation interventional therapy.Traditional surgical operation removing calculus is that the abdominal part that surgeon cuts patient removes calculus, and client need treats long time rehabilitation in hospital.The design of outside taking-up calculus decreases patient and suffers the time that is painful and rehabilitation.
In in the past 40 years, the treatment of calculus disease has obtained very large progress, particularly endoscope's rubble field in vitro.But these all utility models focus on the fragmentation of passage and calculus.Extracorporeal shock-wave lithotripsy (ESWL) technology utilizes pressure wave to crush calculus, but requires that patient self gets rid of brash.In lithotrity, make art sheath via the kidney of skin allow to contact calculus with various ureter sheath.But they are also required that patient leans on when self getting rid of brash or rubble and are discharged by pressure washing and calculus tweezers.Pressure washing and calculus tweezers add the complexity of operating time and surgery.
Utility model content
The purpose of this utility model is to provide a kind of negative pressure suction device that can remove calculus effective, convenient, accurately and efficiently, and this negative pressure suction device can also be used for removing of the foreign body of human intracavity and the tissue of excision simultaneously.
The technical solution of the utility model is a kind of negative pressure suction device, comprises the sheath pipe of vacuum extractor, convergent divergent channel, hollow; It is characterized in that, described sheath pipe is formed by connecting by near-end sheath pipe and distal sheath pipe, be provided with movable sealing lid at the near-end of near-end sheath pipe, described convergent divergent channel can be inserted by the near-end of near-end sheath pipe and extends to the far-end of distal sheath pipe and convergent divergent channel is fixed on near-end sheath pipe; Described near-end sheath pipe is connected with the side pipe of at least 2 hollows, described vacuum extractor is connected to one of them side pipe one end away from sheath pipe.
In above-mentioned negative pressure suction device, the outside of described sheath pipe is provided with accessory channel, and described sheath pipe and accessory channel form double cavity structure.
In above-mentioned negative pressure suction device, being provided with one at the far-end of described distal sheath pipe can enlarged configuration.
In above-mentioned negative pressure suction device, described can enlarged configuration be can the air bag of inflation/deflation or the expansion spring that can expand or shrink.
In above-mentioned negative pressure suction device, be provided with radiopaque interlayer at described sheath inside pipe wall, or be provided with radiopaque interlayer at described sheath pipe outer wall, or be inlaid with radiopaque interlayer at described sheath tube wall.
In above-mentioned negative pressure suction device, described movable sealing covers the through hole be provided with for inserting endoscope, and the diameter of described through hole and the external diameter of endoscope adapt.
In above-mentioned negative pressure suction device, the internal diameter of described side pipe is 0.8 ~ 1.2 times of the hollow bulb diameter of near-end sheath pipe; Or the internal diameter of described side pipe is 0.8 ~ 1.2 times of the hollow bulb diameter of distal sheath pipe.
In above-mentioned negative pressure suction device, described side pipe extends along near-end sheath pipe direction, and the angle of described side pipe and near-end sheath pipe is 20 ° ~ 70 °.
In above-mentioned negative pressure suction device, described sheath pipe is rigidity, semi-rigid or flexible pipe, and described near-end sheath pipe is transparent or semitransparent structure; The top of the junction of the described side pipe being connected with vacuum extractor and near-end sheath pipe is provided with indicia band; Described side pipe is connected with the pressure regulating mechanism for regulating pressure.
In above-mentioned negative pressure suction device, described vacuum extractor comprises collection container, the upper end lid that described collection container comprises bottle and is removably connected with described bottle, the upper end lid of described collection container is provided with inlet tube and outlet, described inlet tube is connected with corresponding side pipe by connection tube, and described outlet and negative pressure produce equipment and be connected; Described outlet produces equipment by a three-way valve with negative pressure and is connected.
Negative pressure suction device structure of the present utility model is simple, and there is the feasibility that one or more side pipe improves auxiliary facilities insertion, and by accessory channel, improve the accuracy of location, by mechanism can be expanded, improve the scope and effect of drawing rubble or other organizational structuries.Negative pressure suction device of the present utility model can be widely used in the extraction of the removing of calculus, fragment of tissue, reduces the misery of patient, improves operating efficiency.
Accompanying drawing explanation
Fig. 1 is the sheath pipe axonometric chart of this utility model embodiment 1;
Fig. 2 is the axonometric chart with the sheath pipe of indicia band of this utility model embodiment 1;
The axonometric chart sectional view of Fig. 3 this utility model embodiment 1;
The front view of Fig. 4 this utility model embodiment 1;
The rearview of Fig. 5 this utility model embodiment 1;
The top view of Fig. 6 this utility model embodiment 1;
The upward view of Fig. 7 this utility model embodiment 1;
The axonometric chart of a kind of negative pressure suction device of Fig. 8 this utility model embodiment 1;
The axonometric chart of the another kind of negative pressure suction device of Fig. 9 this utility model embodiment 1;
Having of Figure 10 this utility model embodiment 1 can the distal sheath pipe sectional view of enlarged configuration;
Having of Figure 11 this utility model embodiment 1 can the sectional view of distal sheath pipe in expansion situation of enlarged configuration;
The front view of a kind of way of realization of Figure 12 a this utility model embodiment 2;
The sectional view of a kind of way of realization of Figure 12 b this utility model embodiment 2;
The front view of the another kind of way of realization of Figure 13 a this utility model embodiment 2;
The sectional view of the another kind of way of realization of Figure 13 b this utility model embodiment 2.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical solution of the utility model is described in further detail, but does not form any restriction of the present utility model.
Embodiment 1
As shown in Fig. 1 ~ 11, a kind of negative pressure suction device 10, comprises the sheath pipe 20 of vacuum extractor, convergent divergent channel 90, hollow; Described sheath pipe 20 is formed by connecting by near-end sheath pipe 30 and distal sheath pipe 40, be provided with movable sealing lid 100 at the near-end of near-end sheath pipe 30, described convergent divergent channel 90 can be inserted by the near-end of near-end sheath pipe 30 and extends to the far-end of distal sheath pipe 40 and convergent divergent channel is fixed on near-end sheath pipe 30; Described near-end sheath pipe 30 is connected with the side pipe of at least 2 hollows, be preferably 2,3,4,5, the quantity of side pipe is 2 in the present embodiment, be the first side pipe 50 and the second side pipe 60 at this note, described vacuum extractor is connected to one of them side pipe i.e. the first side pipe 50 away from one end of sheath pipe.Specifically, near-end sheath pipe 30 comprises the first near-end 31 and the first far-end 32 and the first inner chamber 33, described distal sheath pipe 40 comprises the second near-end 41 and the second far-end 42 and the second inner chamber 43, the first described side pipe 50 comprises the 3rd near-end 51 and the 3rd far-end 52 and the 3rd inner chamber 53, first far-end 32 of described near-end sheath pipe 30 is connected with the second near-end 41 of distal sheath pipe 40, it connects preferably strippable connection or dismountable connected mode, if distal sheath pipe 40 is made up of peelable or tearable material.This also can realize with the perforation of the distally manufacture of the longitudinal axis of sheath pipe 40.Further preferably, the place be connected with near-end sheath pipe 30 of distal sheath pipe 40 is provided with two flanks, this will be conducive to being separated, peel off, tear, and movable sealing lid 100 is arranged on the first near-end 31, and convergent divergent channel 90 is inserted in sheath pipe 20 through the first near-end 31.
As shown in Figure 3, described movable sealing lid 100 is provided with the through hole 101 for inserting endoscope, and the described diameter of through hole 101 and the external diameter of endoscope adapt.As shown in Figure 3, the first described side pipe 50 is connected to outside described near-end sheath pipe 31.The internal diameter of the first described side pipe 50 is 80% ~ 120% of the first inner chamber 33 diameter of near-end sheath pipe 30, as 80%, 100%, 120%; Or the internal diameter of the first described side pipe 50 is 80% ~ 120% of the second inner chamber 43 diameter of distal sheath pipe 40, as 80%, 100%, 120%, be as the criterion can ensure that calculus or other organizational structuries can be discharged smoothly, described sheath pipe 20 is rigidity, semirigid or flexible pipe.This sheath pipe 20 is made up of any medical grade material, and it comprises but is not limited to, nylon, polyethylene, polrvinyl chloride, Merlon, polypropylene or PEP.Sheath pipe 20 can be strengthened its tube wall strength with rigidity or semirigid coil or filament, to reach desirable intensity.Near-end sheath pipe 30 and distal sheath pipe 40 shell type that maybe can link together as a single-piece that can link together is connected.Preferably, near-end sheath pipe 30 is rigidity, the structure of polypropylene, Merlon or polrvinyl chloride and distal sheath pipe 40 is semirigid, is made up of nylon, polyethylene or the ethylene, propylene fluoridized.Sheath pipe 20 also has inner chamber 23 and outer surface 24.The length of sheath pipe 20 can corresponding to any length be known in the art.Such as, the length of described sheath pipe 20 is in the scope of 15 ~ 45 centimetres.The inner chamber 23 of sheath pipe 20 can be that any diameter allows endoscope path way to be conventional in lithotrity, and such as, the diameter of inner chamber 23 can change in the scope of 3 to 8 millimeters or 8 to 24Fr.Further preferably, be provided with radiopaque interlayer (not shown) at described sheath pipe 20 inwall, or be provided with radiopaque interlayer at described sheath pipe 20 outer wall, or be inlaid with radiopaque interlayer at described sheath pipe 20 tube wall.Such as, the interlayer of radiopaque material also can be used in the outer surface 24 of sheath pipe 20, and it can offer help in the position determining the sheath pipe 20 in patient body.
Described near-end sheath pipe 30 is transparent or semitransparent structure, and what be beneficial to when calculus is sucked out is visual.The first described side pipe 50 is connected with the pressure regulating mechanism 110 for regulating pressure, pressure regulating mechanism 110 can be the control blow vent of the form being simply slit or hole, or it can be more complicated mechanism's such as valve, further, pressure regulating mechanism 110 is the slit that can regulate aperture of the Axis Extension along the first side pipe 50, when without the need to regulating, this slit is in closed condition.In addition, pressure regulating mechanism 110 can also be the valve of three-way valve or other kinds, to regulate negative pressure.As shown in figs. 10-11, the second far-end 42 i.e. far-end 22 of sheath pipe 20 of the distal sheath pipe 40 described in this is can enlarged configuration 120, described can enlarged configuration 120 be can the air bag of inflation/deflation or the expansion spring that can expand or shrink, enlarged configuration 120 can be used to inside collecting sheath pipe calculus, foreign body or destination organization are treated.Further, far-end 22 i.e. second far-end 42 of distal sheath pipe 40 of sheath pipe 20 is constructed to pyramidal structure, is inserted in the body cavity of patient to facilitate described sheath pipe 20.Once the far-end 22 of sheath pipe 20 puts in place, then far-end 22 can expand as required, improves scope and the dynamics of absorption calculus or its hetero-organization, effectively raises the efficiency of negative-pressure adsorption.
Described the first side pipe 50 being connected with vacuum extractor is provided with indicia band 36 with the top of the junction of near-end sheath pipe 30,3rd far-end 52 of the first side pipe 50 is connected with the side of near-end sheath pipe 30, first side pipe 50 and near-end sheath pipe 30 from the angle A in junction to the first near-end 31 direction at 0 ° within the scope of 180 °, between 10 ° and 170 °, between 20 ° and 160 °, 30 ° and 150 °, between 20 ° and 110 °, between 2 ° and 90 °, or between 20 ° and 70 °.Further preferably, the first side pipe 50 is 45 ° or 25 ° or 30 ° with the angle in junction to the direction of the first near-end 31 of near-end sheath pipe 30.3rd near-end 51 of the first side pipe 50 is configured to connection connection tube 70,3rd near-end 51 of the first side pipe 50 can be straight, open, taper, extendible, and/or ribbed and/or there is the adapter of some other types of the medical apparatus and instruments that luer lock or some other forms of adapters can be used in, including, but not limited to wire basket, seal wire, stylet, circle, a nipper etc.Backflow preventer also can in conjunction with being attached on the 3rd near-end 51 of the first side pipe 50.The effect of indicia band 36 is when endoscope is placed in sheath pipe 20, because calculus cannot be discharged more greatly smoothly, needs endoscope to move to indicia band in sheath pipe 20, and like this, calculus or other people soma can be discharged by the first side pipe 50 smoothly.
As shown in Figure 3, the second side pipe 60 is for providing the side pipe of the additional channel supplementing flushing or seal wire, calculus basket or other equipment that may need during foreign body removal process, and it also can be used to the additional channel of calculus or foreign body evacuation.Second side pipe 60 can be positioned at the optional position of the outer surface 34 of near-end sheath pipe.Second side pipe 60 is dispersed along the outer surface 34 of this near-end sheath pipe 30 and is upwards formed, and with the angle B of described near-end sheath pipe 30 at 0 ° within the scope of 180 °, between 10 ° and 170 °, between 20 ° and 160 °, 30 ° and 150 °, between 20 ° and 110 °, between 20 ° and 90 °, or between 20 ° and 70 °.Preferably, this angle is 45 °, 30 ° or 25 °.Preferably, the diameter of the inner chamber 63 of the second side pipe 60 is less than the first inner chamber 33 diameter, or is less than the diameter of the second inner chamber 43.In another embodies, diameter and first inner chamber 33 or the second inner chamber 43 of the inner chamber of the second side pipe 60 are identical or are 120% of its diameter, can promote effective evacuation of calculus, stone debris or other foreign bodies when the inner chamber internal diameter of the second side pipe 60 is larger.Each second side pipe 60 comprises the outer surface 34 that the 6th near-end 61 and the 6th far-end the 62, six far-end 62 are fixed to near-end sheath pipe 30.Second side pipe 60 also can comprise pressure regulating mechanism 110.Pressure regulating mechanism 110 can be simply the control blow vent of the form in slit or hole, or it can be more complicated mechanism's such as valve.Preferably, the pressure regulating mechanism 110 of the second side pipe 60 is longitudinal slit of the axis along described second side pipe 60, and this longitudinal slit is a controllable mechanism controlling ventilation aperture.When minimal negative pressure is required, this slit stays open or minimally is closed.When negative pressure need as required, the highest can complete totally enclosed slit.Preferably, this pressure regulating mechanism 110 can also be a three-way valve, and it has straight chamber 88 and chamber, right angle 89.Certainly as shown in Figures 4 and 5, it also can add pressure regulating mechanism 110.
Second inner chamber 43 of distal sheath pipe 40 can for medical instrument as endoscope, convergent divergent channel, calculus, tissue fragment etc. also can be supplied to pass through, it has outer surface 44 and locking member 45, as shown in Figure 3, locking member 45 is for keeping the reliable connection of distal sheath pipe 40 and near-end sheath pipe 30, and distal sheath pipe 40 and near-end sheath pipe 30 can be constructed to the telescoping structure of single-piece on straight line.Distal sheath pipe 40 can be straight, taper, extendible or flash of light.Second far-end 42 of distal sheath pipe 40 can be smooth, tilt, convex or recessed, preferably, it is flat end, preferably, second far-end 42 of distal sheath pipe 40 can be coated with hydrophilic coating and/or politef, particularly at fluid environment to reduce friction.Described distal sheath pipe 40 can be opaque, translucent, transparent or these combination.In preferably embodying, distal sheath pipe 40 is opaque, to avoid illumination for endoscope luminous reflectance.As shown in Figure 4, described distal sheath pipe 40 can also have measurement markers 46, has been advanced in body cavity with the length of indicating remote sheath pipe 40.The length of distal sheath pipe 40 can in the scope of 15 ~ 45 centimetres.
In the present embodiment, as shown in Figure 3, convergent divergent channel 90 is the instrument of laparoscopic technique, convergent divergent channel 90 is by rigidity, and semirigid or flexible material is made, and can have axle and outer surface 94, its smooth texture, it is a solid construction or the structure having a hollow center.Convergent divergent channel 90 has the 5th near-end 91 and the 5th far-end 92, and proximally the first near-end 31 of sheath pipe inserts, and is inserted in sheath pipe 20 through the first inner chamber 33 and the second inner chamber 43.5th far-end 92 can be straight, circle, taper, or splay.Convergent divergent channel 90 is the inwalls being applicable to being close to sheath pipe 20.Preferably, convergent divergent channel 90 has the 5th far-end 92 that a hollow centre forms the 5th inner chamber 93 and a taper, and leading line can be transmitted by the 5th inner chamber 93.More preferably, convergent divergent channel 90 is solid and the 5th far-end 92 is inclined-plane.5th near-end 91 of convergent divergent channel 90 can be constructed to handle and be easy to hold, and uses luer lock mechanism, attached with what allow a syringe.In the present embodiment, the interface between convergent divergent channel 90 and near-end 21 i.e. first near-end 31 of near-end sheath pipe 30 of sheath pipe 20 is provided with bindiny mechanism 35.This bindiny mechanism 35 is preferably threaded connection or coupling screwing machine structure, to ensure the stable connection of convergent divergent channel 90 and sheath pipe 20, such as, this bindiny mechanism 35 is a screw and corresponding screw hole, after its permission convergent divergent channel 90 is engaged to the first near-end 31 of near-end sheath, screw in bindiny mechanism can be removed, and convergent divergent channel 90 takes out from the inner chamber 23 of sheath pipe.And for example, bindiny mechanism 35 is undertaken by the convergent divergent channel 90 of winding and the luer lock mechanism of sheath pipe 20.This will prevent the disengaging sheath pipe 20 of convergent divergent channel 90 and pass in the passage of main body.The outer surface of convergent divergent channel 90 is provided with scale 96, clearly can observe the insertion depth of convergent divergent channel 90.
In the present embodiment, as shown in Figure 3, movable sealing lid 100, refers to through structure with the first near-end 31 of applicable near-end sheath pipe 30.Central opening can be self-packing, and movable sealing lid 100 can by rubber, and silicones or known acceptable any material are in the art made.Its center is provided with a through hole 101 passed for endoscope, and when not having endoscope to pass, this through hole 101 can be sealed by a sealing-plug.
As shown in Figure 8 and Figure 9, described vacuum extractor comprises collection container 80, the upper end lid 81 that described collection container 80 comprises bottle 84 and is removably connected with described bottle, the height of described bottle 84 is 1 ~ 4 times of the height of upper end lid 81, be preferably 1 ~ 3 times, the aspect ratio being more preferably upper end lid 81 and bottle 84 is 3:7, the advantage of this ratio is adopted to be, the stability of collection container 80 can be improved, when upper end lid 81 is provided with multiple assembly, suitable upper end lid 85 and the ratio of bottle 84 contribute to the maintenance of sealing property, described bottle 84 is connected by connector with upper end lid 81, the selection of connector can be multiple, as bottle 84 is provided with sealing ring, the place that upper end lid 81 coordinates with bottle 84 is provided with the holding tank holding sealing circle, or, bottle 84 and upper end lid 81 are in the Packed situation of difference tool, employing bolt is fixedly connected with, or, bottle 84 and upper end lid 81 are in the Packed situation of difference tool, the Plastic Bandage that employing can be fastening or the bonding jumper that can lock are fixed connection.The upper end lid 81 of described collection container 80 is provided with inlet tube 82 and outlet 83, and described inlet tube 82 is connected with the first corresponding side pipe 50 by connection tube 70.Connection tube 70 can be rigidity, any medical grade material in semi-rigid or flexible pipe.Connection tube 70 has a connection tube near-end 71 and a connection tube far-end 72, connection tube inner chamber 73.Have in application, connection tube 70 is transparent pvc pipes.Collection container 80 is containers of any shape.Inlet tube 82 can have or can not have a check valve, in case fluid and other materials backflow enter connection tube 70.The outlet 83 or similar sieve 85 preventing microlith or foreign body fragment or other materials from flowing into collection container 80 mechanism can be equipped with along the optional position of outlet 83.Inlet tube 82 has bindiny mechanism, for being connected to connection tube 70.Outlet 83 is connected to the negative pressure-pumping machine 120 of a standard by an assistant connecting pipe 78, as shown in Figure 10.
In the present embodiment, outlet 83 is provided with and has three-way valve.The straight chamber 88 of three-way valve is connected to negative pressure system and chamber, right angle 89 is connected to syringe.Chamber, right angle in normal operating closes.But when there being stone debris, clot or fragment of tissue choke outlet conduit 83, this chamber, right angle 89 can be opened to utilize additional injections device to rinse and remove obturator.
In actual applications, movable sealing lid 100 is taken off, then convergent divergent channel 90 is inserted from the first near-end 31, and be locked on the near-end 21 (i.e. the first near-end 31 of near-end sheath pipe 30) of sheath pipe 20 by retaining mechanism 35, by convergent divergent channel 90, distal sheath pipe 40 is guided to the position needing to draw rubble or other people soma's fragment, then convergent divergent channel 90 is taken off, the movable sealing lid 100 being provided with endoscope is covered on the near-end (i.e. the first near-end 31 of near-end sheath pipe 30) of sheath pipe 20, location is assisted to draw rubble or other people soma's fragment by endoscope, when rubble or other people volume of soma's fragment larger, but when being less than again the second inner chamber 43 diameter, endoscope is evacuated to indicia band 56 position, then by negative pressure sucking-off.In the process, negative pressure is provided by vacuum extractor, by collection container 80, can effectively avoid the negative pressure-pumping machine 120 of resorption, blocking standard as problems such as vacuum pumps, pressure can be regulated by the pressure regulating mechanism 110 that the first side pipe 50 connects, whole operation sequence is simple, handling ease, can effectively remove rubble or fragment of tissue, what is more important, by the second far-end 42 of distal sheath pipe 40 enlarged configuration 120 can effectively can expand the scope that rubble or fragment of tissue remove, improve and remove efficiency.By setting up this second side pipe 60, can the more equipment of additional input, in addition can as the passage of rubble or fragment of tissue, improve the accuracy that rubble or fragment of tissue remove.
Embodiment 2
As Figure 12 a, 12b, 13a, shown in 13b, roughly the same with embodiment 1, different places is, in the present embodiment, the outside of described sheath pipe 20 is provided with one for inserting the accessory channel 130 of seal wire, this accessory channel 130 comprises the 4th near-end 131 and the 4th far-end 132 and the 4th inner chamber 133, seal wire is inserted in the 4th inner chamber 133, 4th far-end 132 of described accessory channel 130 exceeds the second far-end 42 of described distal sheath pipe as shown in figures 13a andb, or it is concordant as shown in figures 12 a and 12b with the second far-end 42, preferably, it exceeds the second described far-end 42, exceed distance and be approximately 1 centimetre, 2 centimetres 3 centimetres or be less than 5 centimetres, accessory channel 130 assists the far-end 22 of the described sheath pipe in location in the position nestling up calculus or foreign body.In addition, accessory channel 130 also can be used for guiding extra flushing, conduit, foreign body basket, check instrument or equipment, and with the position of close calculus or foreign body, this extra flushing, conduit, foreign body basket, check instrument or equipment are carried by accessory channel 130.
Seal wire can assist sheath pipe 20 accurately to locate by this accessory channel 130, improves accuracy when rubble or fragment of tissue absorption.
Above-describedly be only preferred embodiment of the present utility model, all do in spirit of the present utility model and spirit any amendment, equivalently to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a negative pressure suction device, comprises the sheath pipe of vacuum extractor, convergent divergent channel, hollow; It is characterized in that, described sheath pipe is formed by connecting by near-end sheath pipe and distal sheath pipe, be provided with movable sealing lid at the near-end of near-end sheath pipe, described convergent divergent channel can be inserted by the near-end of near-end sheath pipe and extends to the far-end of distal sheath pipe and convergent divergent channel is fixed on near-end sheath pipe; Described near-end sheath pipe is connected with the side pipe of at least 2 hollows, described vacuum extractor is connected to one of them side pipe one end away from sheath pipe.
2. negative pressure suction device according to claim 1, is characterized in that, the outside of described sheath pipe is provided with accessory channel, and described sheath pipe and accessory channel form double cavity structure.
3. negative pressure suction device according to claim 1 and 2, is characterized in that, being provided with one at the far-end of described distal sheath pipe can enlarged configuration.
4. negative pressure suction device according to claim 1, is characterized in that, described can enlarged configuration be can the air bag of inflation/deflation or the expansion spring that can expand or shrink.
5. negative pressure suction device according to claim 1, it is characterized in that, be provided with radiopaque interlayer at described sheath inside pipe wall, or be provided with radiopaque interlayer at described sheath pipe outer wall, or be inlaid with radiopaque interlayer at described sheath tube wall.
6. negative pressure suction device according to claim 1, is characterized in that, described movable sealing covers the through hole be provided with for inserting endoscope, and the diameter of described through hole and the external diameter of endoscope adapt.
7. negative pressure suction device according to claim 1, is characterized in that, the internal diameter of described side pipe is 0.8 ~ 1.2 times of the hollow bulb diameter of near-end sheath pipe; Or the internal diameter of described side pipe is 0.8 ~ 1.2 times of the hollow bulb diameter of distal sheath pipe.
8. negative pressure suction device according to claim 1, is characterized in that, described side pipe extends along near-end sheath pipe direction, and the angle of described side pipe and near-end sheath pipe is 20 ° ~ 70 °.
9. negative pressure suction device according to claim 1, is characterized in that, described sheath pipe is rigidity, semi-rigid or flexible pipe, and described near-end sheath pipe is transparent or semitransparent structure; The top of the junction of the described side pipe being connected with vacuum extractor and near-end sheath pipe is provided with indicia band; Described side pipe is connected with the pressure regulating mechanism for regulating pressure.
10. negative pressure suction device according to claim 1, it is characterized in that, described vacuum extractor comprises collection container, the upper end lid that described collection container comprises bottle and is removably connected with described bottle, the upper end lid of described collection container is provided with inlet tube and outlet, described inlet tube is connected with corresponding side pipe by a connection tube, and described outlet and negative pressure produce equipment and be connected; Described outlet produces equipment by a three-way valve with negative pressure and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144839.2U CN204484239U (en) | 2015-03-13 | 2015-03-13 | Negative pressure suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144839.2U CN204484239U (en) | 2015-03-13 | 2015-03-13 | Negative pressure suction device |
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| Publication Number | Publication Date |
|---|---|
| CN204484239U true CN204484239U (en) | 2015-07-22 |
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| CN201520144839.2U Active CN204484239U (en) | 2015-03-13 | 2015-03-13 | Negative pressure suction device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644242A (en) * | 2015-03-13 | 2015-05-27 | 广州维力医疗器械股份有限公司 | Negative pressure suction device |
| CN106137278A (en) * | 2016-07-22 | 2016-11-23 | 南京东万生物技术有限公司 | Resection organization's extractor |
-
2015
- 2015-03-13 CN CN201520144839.2U patent/CN204484239U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644242A (en) * | 2015-03-13 | 2015-05-27 | 广州维力医疗器械股份有限公司 | Negative pressure suction device |
| CN106137278A (en) * | 2016-07-22 | 2016-11-23 | 南京东万生物技术有限公司 | Resection organization's extractor |
| CN106137278B (en) * | 2016-07-22 | 2019-02-01 | 南京东万生物技术有限公司 | Resection organization's extractor |
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