CN217660891U - Drainage device for gastrointestinal decompression - Google Patents

Abstract

The application discloses drainage device for stomach and intestine decompression, its include the drainage kettle, with the stock solution device and the connecting pipe that drainage kettle intercommunication set up, set up in the air vent at drainage kettle top with be used for opening and close the sealing plug of air vent, including running through set up in the drainage kettle is kept away from the water conservancy diversion hole of air vent one end, the drainage kettle in water conservancy diversion hole week side is provided with and is used for opening and close the starting and stopping mechanism in water conservancy diversion hole, the drainage kettle in starting and stopping mechanism keeps away from the one end of drainage kettle is provided with and is used for changing the connection structure of stock solution device. This application has the restriction and exposes the effect that leads to stomach content outflow when changing stock solution device drainage kettle export.

Description

Drainage device for gastrointestinal decompression

Technical Field

The application relates to the field of drainage device design, in particular to a drainage device for gastrointestinal decompression.

Background

The gastrointestinal decompression is that after a stomach tube is inserted from an oral cavity or a nasal cavity, the stomach tube is connected with a gastrointestinal decompressor, and the gastric contents in the patient are led out of the patient by utilizing the negative pressure or siphon separation, so that the decompression of the stomach of the patient is realized, and the drained gastric contents sometimes need to be measured or detected in a related way.

In the related technology, the Chinese patent with the application number of CN202122278793.1 provides an improved gastrointestinal decompressor, which comprises a drainage kettle capable of being compressed up and down, wherein the top of the drainage kettle is provided with a vent hole and a connecting pipe, a sealing plug is detachably arranged at the vent hole, the connecting pipe is provided with a regulator for regulating the flow rate and the on-off state of the connecting pipe, the improved gastrointestinal decompressor further comprises a transparent liquid storage device, and the liquid storage device is provided with scale marks; the bottom of drainage kettle is fixed with the first joint with drainage kettle intercommunication, be fixed with on the stock solution device with stock solution device intercommunication and can connect with first joint screw-thread fit's second, second joint department threaded connection has first sealed lid, the state and the drainage volume of drainage liquid are convenient for observe, the storage drainage liquid of being convenient for need not empty the drainage liquid in the drainage kettle, reduce nurse's work load, reduce cross infection's probability.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: stock solution device among the correlation technique connects threaded connection through first joint and second, when carrying out the stomach intestines drainage to the patient, if the stock solution device collects to be full or the drainage thing of collecting in the stock solution device need detect, when needing to change the stock solution device of being connected with the drainage kettle, the stomach content in the drainage kettle is easy to be flowed from first joint department, causes the dirty or the possibility that produces cross infection of environment.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that drainage kettle export exposes and leads to the outflow of stomach content when changing stock solution device, this application provides a drainage device for stomach and intestine decompression.

The application provides a drainage device for gastrointestinal decompression adopts following technical scheme:

the utility model provides a drainage device for stomach and intestine decompression, including the drainage kettle, with the stock solution device and the connecting pipe that drainage kettle intercommunication set up, set up in the air vent of drainage kettle one end with be used for opening and close the sealing plug of air vent, including running through set up in the drainage kettle is kept away from the water conservancy diversion hole of air vent one end, the drainage kettle in water conservancy diversion hole week side is provided with and is used for opening and close the opening and closing mechanism in water conservancy diversion hole, the drainage kettle in opening and closing mechanism keeps away from the one end of drainage kettle is provided with and is used for changing the connection structure of stock solution device.

By adopting the technical scheme, the opening and closing mechanism is used for opening and closing the flow guide hole, the liquid storage device is connected to one end, far away from the drainage kettle, of the opening and closing mechanism through the connecting structure, so that the opening and closing of the opening and closing mechanism are not influenced by the replacement of the liquid storage device, after the flow guide hole is closed through the opening and closing mechanism, the liquid storage device is taken down or replaced, the drainage kettle is in a closed state at the moment, the stomach contents which are not completely collected to the liquid storage device in the drainage kettle are prevented from flowing out from the connecting position of the drainage kettle and the liquid storage device as far as possible, the possibility of cross infection caused by the dirty environment of the stomach contents in the drainage kettle is reduced as far as possible, and the nurse works more conveniently and safely; after the liquid storage device is replaced, the diversion hole is opened through the opening and closing mechanism, and then the liquid storage device can be used for storing liquid.

Optionally, the opening and closing mechanism includes two slide rails fixedly connected to the drainage kettle at two opposite positions on two sides of the flow guide hole, and a shifting piece connected to the drainage kettle in a sliding manner through the slide rails, a through hole is formed in the shifting piece, and a sliding path of the shifting piece passes through the flow guide hole; the opening and closing mechanism further comprises a positioning structure and a locking structure, the positioning structure is used for positioning the position where the poking piece closes or opens the flow guide hole, and the locking structure is used for limiting the poking piece to the opening position or the closing position.

By adopting the technical scheme, when the shifting piece slides to the through hole to be communicated with the flow guide hole, the stomach contents in the flow guide kettle can sequentially flow out of the flow guide hole and the through hole to the liquid storage device; when the plectrum slides to the through-hole and is not communicated with the diversion hole, the plectrum seals the diversion hole and then limits the outflow of gastric contents in the drainage kettle from the diversion hole, thereby avoiding the outflow of gastric contents causing dirty environment or cross infection when the liquid storage device is replaced as far as possible.

Optionally, the positioning structure includes a first positioning strip and a second positioning strip fixedly connected to the drainage kettle, and when the shifting sheet abuts against the first positioning strip, the through hole is communicated with the flow guide hole; when the plectrum with when the second location strip butt, the plectrum closes the water conservancy diversion hole.

By adopting the technical scheme, the first positioning strip and the second positioning strip position the sliding of the shifting piece, when the shifting piece slides to be abutted against the first positioning strip, the flow guide hole is in an open state, and the flow guide device is used for normally guiding flow; when the shifting piece slides to abut against the second positioning strip, the flow guide hole is in a closed state and is used for replacing the liquid storage device; make the nurse more convenient to open and close of drainage kettle through setting up first location strip and second location strip.

Optionally, the locking structure includes a first slot provided at one end of the first positioning strip close to the shifting piece and a second slot provided at one end of the second positioning strip close to the shifting piece, and two ends of the shifting piece are respectively in interference insertion with the first slot and the second slot; and anti-skid grains are formed on the groove walls of the first slot and the second slot.

Through adopting above-mentioned technical scheme, when the plectrum cunning move to with first location strip or second location strip butt, the plectrum is pegged graft in first slot or second slot, has avoided the plectrum to remove in first slot or second slot as far as through anti-skidding line, makes that the plectrum can be stable messenger water conservancy diversion hole be in the open mode or closed state.

Optionally, one end of the poking piece, which is far away from the drainage kettle, is fixedly connected with an easy poking piece.

By adopting the technical scheme, the shifting piece is easy to shift, so that medical staff can conveniently swing the shifting piece.

Optionally, the connecting structure includes a first joint fixedly connected to the slide rail and away from one end of the drainage kettle, and a second joint arranged at one end of the liquid storage device, wherein an internal thread is formed on the first joint, and an external thread adapted to the internal thread is formed on the second joint.

By adopting the technical scheme, the drainage kettle is in threaded connection with the liquid storage device through the first joint and the second joint, so that the connection operation is convenient and fast and the connection is tight; meanwhile, the first connector is arranged at one end of the sliding rail, so that the influence of the replacement of the liquid storage device on the opening and closing mechanism is avoided as much as possible, and an operation space is reserved for stirring the shifting piece.

Optionally, the second connects and is equipped with the annular cover in the cover, the rigid coupling has the connecting band on the annular cover, the connecting band is kept away from the one end rigid coupling of annular cover has and is used for sealing the closed stopper that the second connects.

By adopting the technical scheme, the liquid storage device with the collected gastric contents can be closed by closing the second connector through the closing plug after being taken down, so that the gastric contents in the liquid storage device can be conveniently stored and transported, and the gastric contents can be conveniently used for detection; meanwhile, the loss of the sealing plug is avoided as much as possible by arranging the annular sleeve and the connecting band.

Optionally, one end of the drainage kettle close to the connecting pipe is further fixedly connected with a flange, a hanging hole is formed in the flange, and one end of the liquid storage device far away from the drainage kettle is fixedly connected with a hook matched with the hanging hole.

By adopting the technical scheme, when the liquid storage device is not needed in drainage work, the liquid storage device can be stored by hanging the hook on the hanging hole; when the stomach contents collected in the liquid storage device are detected, the liquid storage device is hung upside down through the hook, so that the stomach contents collected in the liquid storage device can be poured out conveniently.

Optionally, one end of the drainage kettle close to the connecting pipe is further provided with a marker for displaying drainage information.

Through adopting above-mentioned technical scheme, the nurse can pass through marker record patient's drainage information, and the doctor of being convenient for judges patient's the state of an illness or the nurse's of being convenient for work of shifting to work.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the flow guide hole is opened and closed through the opening and closing mechanism, the liquid storage device is connected to one end, far away from the drainage kettle, of the opening and closing mechanism through the connecting structure, the opening and closing of the opening and closing mechanism are not affected by the replacement of the liquid storage device, the liquid storage device is taken down or replaced after the flow guide hole is closed through the opening and closing mechanism, the drainage kettle is in a closed state at the moment, the phenomenon that gastric contents which are not completely collected to the liquid storage device in the drainage kettle flow out from the connecting position of the drainage kettle and the liquid storage device is avoided as far as possible, the possibility of cross infection caused by the dirty environment in the stomach of the contents in the drainage kettle is reduced as far as possible, and nurses can work more conveniently and safely; after the liquid storage device is replaced, the opening and closing mechanism opens the flow guide hole, so that the liquid storage device can be used for storing liquid;

2. when the shifting piece slides to the through hole to be communicated with the diversion hole, the gastric contents in the drainage kettle can sequentially flow out of the drainage hole and the through hole to the liquid storage device; when the plectrum slides to the through hole and is not communicated with the diversion hole, the plectrum seals the diversion hole so as to limit the gastric contents in the drainage kettle to flow out from the diversion hole, thereby avoiding the situation that the gastric contents flow out to cause a dirty environment or cross infection when the liquid storage device is replaced as far as possible;

3. after the liquid storage device with the collected gastric contents is taken down, the second joint can be sealed through the sealing plug so as to seal the liquid storage device, so that the gastric contents in the liquid storage device can be conveniently stored and transported, and the gastric contents can be conveniently used for detection; meanwhile, the loss of the sealing plug is avoided as much as possible by arranging the annular sleeve and the connecting band.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view mainly used for showing a flange, a hanging hole and a handle in the embodiment of the application.

Fig. 3 is an exploded structure diagram mainly used for showing an opening and closing mechanism and a connecting structure in the embodiment of the application.

Reference numerals:

11. a drainage pot; 12. a liquid storage device; 13. a connecting pipe; 14. a vent hole; 15. a sealing plug; 16. a flow guide hole;

2. an opening and closing mechanism; 21. a shifting sheet; 22. a slide rail; 23. a through hole; 241. a first positioning bar; 242. a second positioning bar; 251. a first slot; 252. a second slot; 26. the part is easy to be pulled;

3. a connecting structure; 311. a first joint; 312. the connecting circular hole; 321. a second joint; 322. an external thread;

41. an annular sleeve; 42. a connecting belt; 43. a closing plug;

51. a flange; 52. hanging holes; 53. hooking; 54. a transparent pinch plate;

6. a handle;

7. scale lines are marked.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses drainage device for gastrointestinal decompression. Referring to fig. 1, the drainage device for gastrointestinal decompression comprises a drainage pot 11, a liquid storage device 12 and a connecting pipe 13 which are communicated with the drainage pot 11, a vent hole 14 arranged at one end of the drainage pot 11, and a sealing plug 15 for opening and closing the vent hole 14. Specifically, the connection pipe 13 and the vent hole 14 are located on the same end surface of the drainage pot 11, and for convenience of description, they are referred to as a top end in the embodiment of the present application, and an end of the drainage pot 11 opposite to the top end is referred to as a bottom end. Drainage kettle 11 in the embodiment of this application is the ripple kettle, and one end threaded connection of connecting pipe 13 is in the stomach tube threaded connection of the top of drainage kettle 11, the other end and the pre-insertion patient stomach, adjusts the atmospheric pressure in drainage kettle 11 through air vent 14 and sealing plug 15, and then carries out the drainage to stomach content.

Referring to fig. 2, the top end of the drainage pot 11 is further provided with a marker for displaying drainage information, the marker in the embodiment of the present application is a transparent buckle plate 54 fixedly connected to the top end of the drainage pot 11, the transparent buckle plate 54 can be made of plastic, acrylic or other transparent materials, the top end of the drainage pot 11 is further movably provided with an information card in plug-in fit with the transparent buckle plate 54, and medical staff can record drainage information of a patient on the information card.

With continued reference to fig. 2, the top end of the drainage pot 11 is also hinged with a handle 6, which is convenient for the patient to carry the drainage pot 11 when moving; a flange 51 is fixedly connected to one side of the top end of the drainage kettle 11 far away from the handle 6, a hanging hole 52 is formed in the flange 51 in a penetrating mode, and when a patient moves, the drainage kettle 11 can be hung on the neck after a rope penetrates through the hanging hole 52.

Further, an activated carbon bag (not shown in the figure) is fixedly connected to the end face of the top end of the drainage kettle 11, which is positioned in the drainage kettle 11, and is used for disinfecting and deodorizing gas and liquid absorbed in the stomach and intestine.

When more drainage objects/gastric contents are stored in the drainage kettle 11, the air pressure in the drainage kettle 11 is easily influenced, and further influences the drainage effect, so that, referring to fig. 1, the bottom end of the drainage kettle 11 is communicated with a liquid storage device 12, the liquid storage device 12 in the embodiment of the application is a drainage bag made of transparent plastics, and scale marks 7 are printed on the outer side of the drainage bag, so that the drainage objects can be conveniently measured by observing the color of the drainage objects/gastric contents in the bag and comparing the scale marks 7; meanwhile, the drainage matter collected in the drainage bag can also be used for detection.

Specifically, with reference to fig. 1 and fig. 3, a flow guide hole 16 is formed in the bottom of the flow guide kettle 11 in a penetrating manner, an opening and closing mechanism 2 for opening and closing the flow guide hole 16 is arranged on the periphery of the flow guide hole 16 of the flow guide kettle 11, and a connecting structure 3 for replacing the liquid storage device 12 is arranged at one end of the flow guide kettle 11, far away from the flow guide kettle 11, of the opening and closing mechanism 2 of the flow guide kettle 11.

Referring to fig. 3, water conservancy diversion hole 16 in this application embodiment is the round hole, and operating mechanism 2 includes the slide rail 22 of rigid coupling in two relative positions in water conservancy diversion hole 16 both sides and slides through slide rail 22 and connect the plectrum 21 on drainage kettle 11, and plectrum 21 in this application embodiment is the rectangle piece, and the one end rigid coupling that drainage kettle 11 was kept away from to plectrum 21 has the easy piece 26 of dialling of being convenient for medical staff to stir plectrum 21, and easy piece 26 of dialling in this application embodiment is the rectangular shape arch that the through-hole 23 one end was kept away from in plectrum 21 to the rigid coupling.

The slide rail 22 is an L-shaped rail, the length direction of the slide rail 22 is perpendicular to the radial direction of the flow guide hole 16, and the L-shaped slide rail 22 can prevent the shifting piece 21 from slipping off the flow guide kettle 11 as much as possible; set up through-hole 23 on the plectrum 21, through-hole 23 and water conservancy diversion hole 16 shape in this application embodiment are the same, and the partial area that through-hole 23 was not seted up to plectrum 21 is big than the cross section of water conservancy diversion hole 16, and the slippage route of plectrum 21 covers water conservancy diversion hole 16.

When the plectrum 21 slides to the through hole 23 to be communicated with the diversion hole 16, the stomach content in the drainage kettle 11 can sequentially flow out from the diversion hole 16 and the through hole 23, namely the bottom end of the drainage hole is in an open state; when the shifting piece 21 slides to the diversion hole 16 and is not overlapped with the through hole 23, the diversion hole 16 is closed by the shifting piece 21, namely, the bottom end of the diversion hole is in a closed state.

Further, in order to enable medical staff to conveniently determine the poking position of the poking piece 21 and then accurately open and close the drainage pot 11 through the poking piece 21, the opening and closing mechanism 2 further comprises a positioning structure for positioning the poking piece 21 and a locking structure for limiting the poking piece 21 to be in an opening position or a closing position.

Specifically, referring to fig. 3, the positioning structure includes a first positioning strip 241 and a second positioning strip 242 fixedly connected to the drainage kettle 11, and the first positioning strip 241 and the second positioning strip 242 in this embodiment are long strips made of a silica gel material and having a certain deformation capability.

The locking structure comprises a first slot 251 arranged at one end, close to the shifting piece 21, of the first positioning strip 241 and a second slot 252 arranged at one end, close to the shifting piece 21, of the second positioning strip 242, wherein the slot walls, far away from the drainage kettle 11, of the first slot 251 and the second slot 252 are both obliquely arranged, and both the slot walls are pointed to the drainage kettle 11 by one end, far away from the drainage kettle 11, of the first slot 251 and the second slot 252, so that the cross sections of the first slot 251 and the second slot 252 are in a hook shape.

Both ends of the poking piece 21 are respectively in inserting fit with the first slot 251 and the second slot 252, and because the first positioning strip 241 and the second positioning strip 242 have certain deformation capacity in the embodiment of the present application, when the poking piece 21 slides to the notch of the first slot 251 or the second slot 252, the poking piece 21 can be inserted into the slots by force, and after the poking piece 21 is inserted into the slots, the slot walls of the first slot 251 and the second slot 252, which are far away from the drainage kettle 11, tightly support the poking piece 21, so that interference insertion is realized, movement of the poking piece 21 is limited, drainage in the drainage kettle 11 is limited to flow out from the first slot 251 and/or the second slot 252 as far as possible, and the poking piece 21 can stably enable the drainage hole 16 to be in an open state or a closed state. Furthermore, the groove walls of the first slot 251 and the second slot 252 are both provided with anti-slip threads (not shown in the figure), so as to better prevent the shifting piece 21 from moving in the first slot 251 or the second slot 252.

With continued reference to fig. 3, the connecting structure 3 includes a first connector 311 fixed to the end of the slide rail 22 far from the drainage pot 11 and a second connector 321 disposed at an end of the liquid storage device 12. In the embodiment of the present application, the first joint 311 is square, which is convenient for being connected to the slide rail 22, in other feasible embodiments, the first joint 311 may also be a joint with a rectangular shape, a circular shape or other shapes, a connecting circular hole 312 is formed through the first joint 311, the connecting circular hole 312 is the same as the diversion hole 16 in size and is opposite to the diversion hole 16, and an internal thread is formed on the hole wall of the connecting circular hole 312.

The second connects 321 for hollow cylindrical connects, offers the external screw thread 322 with the internal thread adaptation on the circular arc periphery wall of second connects 321, and first joint 311 passes through internal thread and external screw thread 322 threaded connection with second connects 321, and then makes stock solution device 12 threaded connection on drainage kettle 11. At this time, after the opening and closing mechanism 2 opens the diversion hole 16, the drainage in the drainage bottle 11 flows into the liquid storage device 12 after passing through the diversion hole 16, the through hole 23, the connection circular hole 312 and the second connector 321 once.

Referring back to fig. 1, since medical staff sometimes detect the collected drainage, an annular sleeve 41 is sleeved on an end of the second connector 321 close to the liquid storage device 12, a soft silica gel connection band 42 is fixedly connected to the annular sleeve 41, and a sealing plug 43 for sealing the second connector 321 is fixedly connected to an end of the connection band 42 away from the annular sleeve 41, in this embodiment, the sealing plug 43 is also made of a silica gel material with a certain deformation capability, and the sealing plug 43 is slightly larger than a connection hole of the second connector 321, so that the second connector 321 can be better sealed.

When the drainage that can supply to detect was collected to liquid storage device 12, remove plectrum 21 and make plectrum 21 peg graft in second slot 252, make liquid storage device 12 and drainage kettle 11 separation unscrewing second joint 321, make the closed stopper 43 seal second joint 321 again, and then realized the closure to liquid storage device 12, the liquid storage device 12 that is convenient for collect the drainage shifts to the detection department.

Further, with reference to fig. 1, one end of the end surface of the liquid storage device 12, which is far away from the second joint 321 and is close to the flange 51, is fixedly connected with a hook 53 adapted to the hanging hole 52, and when the drainage objects are less and the liquid storage device 12 is not needed to be used, the hook 53 can be hung in the hanging hole 52, so as to store the liquid storage device 12, and avoid the liquid storage device 12 from swinging randomly as much as possible. Simultaneously, when drainage in the liquid storage device 12 is poured to the detection container, the hook 53 articulates the back with the liquid storage device 12, and the second connects 321 towards ground, can be convenient for the drainage flows out in the liquid storage device 12.

The implementation principle of the drainage device for gastrointestinal decompression in the embodiment of the application is as follows: when the liquid storage device 12 needs to be replaced, the poking piece 21 is poked to enable the poking piece 21 to be inserted into the second slot 252 to close the diversion hole 16, the second connector 321 is rotated to enable the second connector 321 to be separated from the first connector 311, and the separated liquid storage device 12 is closed through the closing plug 43; after the liquid storage device 12 is replaced, the shifting piece 21 is shifted to enable the shifting piece 21 to be inserted into the first slot 251, at the moment, the diversion hole 16 is opened, the diversion hole 16 corresponds to the through hole 23, the connecting circular hole 312 and the second connector 321, and the liquid storage device 12 is used for collecting drainage matters in the drainage kettle 11.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a drainage device for stomach and intestine decompression, including drainage kettle (11), with stock solution device (12) and connecting pipe (13) that drainage kettle (11) intercommunication set up, set up in air vent (14) at drainage kettle (11) top and be used for opening and close sealing plug (15) of air vent (14), its characterized in that: including running through set up in drainage kettle (11) are kept away from water conservancy diversion hole (16) of air vent (14) one end, drainage kettle (11) in water conservancy diversion hole (16) week side is provided with and is used for opening and close the opening and closing mechanism (2) of water conservancy diversion hole (16), drainage kettle (11) in opening and closing mechanism (2) are kept away from the one end of drainage kettle (11) is provided with and is used for changing connection structure (3) of stock solution device (12).

2. The drainage device for gastrointestinal decompression according to claim 1, characterized in that: the opening and closing mechanism (2) comprises two slide rails (22) fixedly connected to the drainage kettle (11) at two opposite positions on two sides of the flow guide hole (16) and a shifting piece (21) connected to the drainage kettle (11) in a sliding manner through the slide rails (22), a through hole (23) is formed in the shifting piece (21), and the sliding path of the shifting piece (21) passes through the flow guide hole (16); the opening and closing mechanism (2) further comprises a positioning structure and a locking structure, wherein the positioning structure is used for positioning the position of the poking piece (21) for closing or opening the diversion hole (16), and the locking structure is used for limiting the poking piece (21) to the opening position or the closing position.

3. The drainage device for gastrointestinal decompression according to claim 2, characterized in that: the positioning structure comprises a first positioning strip (241) and a second positioning strip (242) which are fixedly connected to the drainage kettle (11), and when the plectrum (21) is abutted against the first positioning strip (241), the through hole (23) is communicated with the flow guide hole (16); when the plectrum (21) is abutted against the second positioning strip (242), the plectrum (21) closes the diversion hole (16).

4. The drainage device for gastrointestinal decompression according to claim 3, characterized in that: the locking structure comprises a first slot (251) formed in one end, close to the shifting piece (21), of a first positioning strip (241) and a second slot (252) formed in one end, close to the shifting piece (21), of a second positioning strip (242), and two ends of the shifting piece (21) are respectively in interference insertion connection with the first slot (251) and the second slot (252); the groove walls of the first slot (251) and the second slot (252) are provided with anti-skid lines.

5. The drainage device for gastrointestinal decompression according to claim 2, characterized in that: one end of the poking sheet (21) far away from the drainage kettle (11) is fixedly connected with an easy poking piece (26).

6. The drainage device for gastrointestinal decompression according to claim 2, characterized in that: connection structure (3) include the rigid coupling in slide rail (22) are kept away from first joint (311) of drainage kettle (11) one end with set up in second joint (321) of stock solution device (12) one end, the internal thread has been seted up on first joint (311), the second connect (321) on seted up with external screw thread (322) of internal thread adaptation.

7. The drainage device for gastrointestinal decompression according to claim 6, characterized in that: the cover is equipped with annular cover (41) on second joint (321), the rigid coupling has connecting band (42) on annular cover (41), connecting band (42) are kept away from the one end rigid coupling of annular cover (41) has and is used for sealing closed stopper (43) that second joint (321).

8. The drainage device for gastrointestinal decompression according to claim 1, characterized in that: drainage kettle (11) are close to the one end of connecting pipe (13) still the rigid coupling has flange (51), hanging hole (52) have been seted up on flange (51), liquid storage device (12) are kept away from the one end rigid coupling of drainage kettle (11) have with couple (53) of hanging hole (52) adaptation.

9. The drainage device for gastrointestinal decompression according to claim 1, characterized in that: one end of the drainage kettle (11) close to the connecting pipe (13) is also provided with a marker for displaying drainage information.

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