CN213048995U

CN213048995U - Stomach tube connecting device

Info

Publication number: CN213048995U
Application number: CN202021195639.7U
Authority: CN
Inventors: 王宏玲; 彭丽晶; 陶金萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-04-27
Anticipated expiration: 2030-06-24

Abstract

The utility model provides a stomach tube connecting device, including the three-way valve, stomach and intestine pressure reducer and fluid injector, three-way valve adjustable intercommunication stomach tube and stomach and intestine pressure reducer or stomach tube and fluid injector, fluid injector has the syringe body that holds the chamber including inside, smooth piston of holding the intracavity of locating, circular cross section's syringe access pipe and syringe contact tube, the one end intercommunication that the syringe inserted the pipe holds the chamber, install annular seal along the direction from entering the mouth to holding the chamber in proper order in the intraductal of the other end, it has the one-way board to articulate, when the one-way board is on a parallel with syringe access pipe cross section, one side of sealing washer contact one-way board, the one-way board is a plectane and removes a fan ring, a part of fan ring and sealing. The utility model discloses can carry out the operation of stomach intestine decompression, injection nutrient solution, injection medicine, need not to connect repeatedly and detach the stomach tube, whether stomach intestine decompressor and fluid injector work all can keep connecting on the three-way valve.

Description

Stomach tube connecting device

Technical Field

The utility model relates to a stomach tube technical field specifically is a stomach tube connecting device.

Background

In clinical practice, some patients need to place a stomach tube so as to continuously carry out gastrointestinal decompression, reduce flatulence and be convenient for observe the gastric juice condition, need to be interrupted to inject medicine and nutrient solution into the patient body through the stomach tube simultaneously to reach the purpose of treatment and nutrition supply, the stomach tube collects and injects medicine, injects nutrient solution and gastrointestinal decompression in an organic whole promptly. One end of the stomach tube is positioned in the body of a patient, and the other end of the stomach tube is a stomach tube interface for injecting medicine or nutrient solution or connecting the gastrointestinal decompressor. In the current application, when medicine or nutrient solution are injected into to needs, the equipment of injecting medicine or nutrient solution is connected to the stomach tube joint, when the stomach intestine decompression is carried out to needs, stomach tube joint connection gastrointestinal pressure reducer. That is, the stomach tube connector needs to be alternately connected to different devices, or the gastrointestinal decompression device needs to be repeatedly connected to or disconnected from the stomach tube connector, which causes the following problems: firstly, infection is easily caused when gastrointestinal decompression device and stomach tube joint are separated; secondly, gastric juice, liquid medicine and nutrient solution are easy to flow back and leak; thirdly, the nursing workload is increased; fourthly, repeated separation operation is carried out, and the gastrointestinal decompression device is repeatedly extruded, so that the effective use time of the gastrointestinal decompression device is shortened.

SUMMERY OF THE UTILITY MODEL

The above-mentioned problem to prior art exists, the utility model aims at providing a stomach tube connecting device, connecting device can carry out the operation of stomach intestine decompression, injection nutrient solution, injection medicine, need not to connect repeatedly and detach the stomach tube, and stomach intestine decompressor and fluid injector no matter whether work can all keep connecting on the three-way valve, only need can realize the switching of each operating mode through adjusting the three-way valve.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

a stomach tube connecting device comprises a three-way valve, a gastrointestinal decompressor and a fluid injector, wherein three joints of the three-way valve are respectively connected with the stomach tube, the gastrointestinal decompressor and the fluid injector, the three-way valve is communicated with the stomach tube and the gastrointestinal decompressor or the stomach tube and the fluid injector in an adjustable manner, the fluid injector comprises an injector body, a piston, an injector access pipe and an injector access pipe, the injector access pipe is communicated with the cavity, the injector access pipe is provided with a circular bulge along the circumferential direction at two ends, the bulges at two ends are respectively matched with a groove on the injector body and a groove on the three-way valve, one end of the injector access pipe is communicated with the cavity, an annular sealing ring along the circumferential direction is sequentially arranged in the pipe at the other end along the direction from an inlet to the cavity, a one-way plate is hinged through a hinge pin, the sealing ring is in contact with one side of the one-way plate, the cross section of the syringe access pipe is circular, the shape of the one-way plate is a circular plate with a sector ring removed, the outer diameter of the circular plate is not larger than the diameter of the cross section of the syringe access pipe and larger than the inner diameter of the sealing ring, the sector ring is the same as one part of the sealing ring, and the sector ring is positioned on one side of the hinge pin.

As a further improvement of the above technical solution:

the one-way plate is hinged in the syringe access pipe through a hinge pin, the hinge pin is parallel to the cross section of the syringe access pipe, two ends of the hinge pin are located in the wall surface of the syringe access pipe, a hinge hole which is parallel to the plane where the one-way plate is located and penetrates through the one-way plate is arranged on the one-way plate, the aperture of the hinge hole is not smaller than the outer diameter of the hinge pin, the one-way plate is located in the syringe access pipe, and the hinge pin penetrates through the hinge hole.

The hinge pin passes through a chord of the cross section and does not pass through the diameter thereof, the hinge pin and the syringe access tube are in interference fit, and two end faces of the hinge pin do not protrude out of the outer surface of the syringe access tube.

The fluid injector further comprises a plurality of sealing caps, and the inlet end of the injector access tube is detachably connected with the sealing caps.

The fluid injector also comprises a drain pipe, one end of the drain pipe is communicated with the containing cavity, and the other end of the drain pipe is detachably connected with the sealing cap.

The three-way valve comprises a three-way valve casing, the three-way valve casing comprises a stomach tube interface, an injector interface and a pressure reducer interface which are communicated with each other inside, and the stomach tube interface, the injector interface and the pressure reducer interface are respectively connected with a stomach tube, a fluid injector and a gastrointestinal pressure reducer.

The three-way valve further comprises a valve core, the valve core is in a circular truncated cone shape and is rotatably positioned inside the three-way valve shell, an L-shaped through hole is formed in the valve core, and two ends of the through hole are adjustable and are respectively communicated with two of the stomach tube connector, the injector connector and the pressure reducer connector.

The big end fixed connection spanner of round platform shape, the spanner is located the tee bend valve casing outside, and the spanner includes two connecting rods that connect into L shape, and the overhanging end of two connecting rods is facing to two access & exits of L shape through-hole respectively.

The interior of the syringe interface is provided with an annular syringe connecting groove along the circumferential direction, and the syringe connecting groove is matched and connected with a circular ring bulge at one end of the syringe connecting pipe.

A through hole is formed in one wall surface of the injector body, an annular groove is formed in the inner wall surface of the through hole, a protrusion at one end, away from the injector interface, of the injector connecting pipe is matched with the groove in the wall surface of the injector body, and the end face of the end, away from the injector connecting pipe, of the injector connecting pipe does not extend into the accommodating cavity.

The utility model has the advantages that: connecting device can carry out the stomach intestine decompression, pour into the nutrient solution, pour into the operation of medicine into, need not to connect repeatedly and detach the stomach tube, whether stomach intestine decompressor and fluid injector work all can keep connecting on the three-way valve, only need can realize the switching of each operating mode through adjusting the three-way valve, avoid relapseing pollution and the depreciation that the dismouting caused, patient's infection risk has been reduced, gastric juice has been avoided, liquid medicine and the palirrhea seepage of nutrient solution, nursing work intensity of labour has been reduced, the effective live time of stomach intestine decompressor has been guaranteed to the at utmost, fluid injector can realize pouring into medicine and nutrient solution and self and wash, need not to dismantle during the washing, the syringe inserts the pipe has one-way setting, prevent the reverse outflow of fluid, and is simple and.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of a three-way valve casing according to an embodiment of the present invention;

fig. 3 is a schematic view of a three-way valve housing and valve core matching structure according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a fluid injector according to an embodiment of the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 4;

FIG. 6 is a schematic view from perspective B of FIG. 5 with the sealing cap and the one-way plate removed;

FIG. 7 is a cross-sectional view along the hinge pin, as seen at B in FIG. 5;

fig. 8 is a schematic diagram of a one-way plate structure.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

A stomach tube connecting device is shown in figure 1 and comprises a three-way valve 2, a gastrointestinal decompressor 1 and a fluid injector 3, wherein three joints of the three-way valve 2 are respectively connected with a stomach tube, the gastrointestinal decompressor 1 and the fluid injector 3.

As shown in fig. 2 and 3, the three-way valve 2 includes a three-way valve housing 21 and a valve core 22, the three-way valve housing 21 includes a stomach tube interface 211, an injector interface 212 and a decompressor interface 213, which are mutually communicated inside, and the stomach tube interface 211, the injector interface 212 and the decompressor interface 213 are respectively connected to a stomach tube, a fluid injector 3 and a gastrointestinal decompressor 1. An annular syringe attachment groove 214 is provided in the tube of the syringe port 212 along the circumference thereof.

The valve core 22 is in a circular truncated cone shape, an L-shaped through hole is formed in the valve core 22, and two ends of the through hole are adjustable and are respectively communicated with two of the stomach tube connector 211, the syringe connector 212 and the pressure reducer connector 213. The big end of the round platform shape is fixedly connected with a wrench 221, the wrench 221 comprises two connecting rods connected into an L shape, the pointing or overhanging ends of the two connecting rods respectively face two inlets and outlets of the L-shaped through hole, namely, the wrench 221 plays a role of pointing to the inlet and outlet of the valve core 22.

The valve core 22 is located inside the three-way valve casing 21, the wrench 221 is located outside the three-way valve casing 21 for operation, and the orientations of the two connecting rods of the wrench 221 represent the positions of the two ends of the L-shaped through hole. The wrench 221 is rotated, the valve core 22 rotates synchronously, so that the two connecting rods of the wrench 221 point to the stomach tube interface 211 and the injector interface 212 respectively, and at the moment, the stomach tube interface 211 is communicated with the injector interface 212; the wrench 221 is rotated to make the two connecting rods of the wrench 221 respectively point to the stomach tube interface 211 and the reducer interface 213, and at this time, the stomach tube interface 211 is communicated with the reducer interface 213. I.e. the wrench 221 serves both to operate the three-way valve 2 to change the passage and to direct the passage.

For the convenience of installation, the big end of the valve core 22 is provided with an annular bulge protruding out of the surface along the circumferential direction, the three-way valve casing 21 is provided with an annular groove matched with the annular bulge of the valve core 22, the inside of the three-way valve casing 21 is also provided with a groove, and the small end of the valve core 22 is clamped into the groove. Based on the above structure, the valve core 22 can be stably installed in the three-way valve housing 21 and can be rotationally adjusted.

The fluid injector 3 is used to inject a patient with a medication or nutrient solution. As shown in fig. 4, comprises a syringe body 31, a piston 32, a push-pull rod 33, a syringe access tube 34, a syringe access tube 35, a sewage drain 36 and a plurality of sealing caps 37.

The syringe body 31 has a cavity therein. The shape of the piston 32 is the same as that of the cross section of the accommodating cavity, the middle part of one side of the piston 32 is vertically connected with the push-pull rod 33, the piston 32 is parallel to the cross section of the accommodating cavity and is arranged in the accommodating cavity in a sliding mode, one end of the push-pull rod 33 is located in the accommodating cavity, the other end of the push-pull rod 33 is located outside the accommodating cavity, and the tail part of one end of the push-pull rod 33 located outside the accommodating cavity is vertically.

In this embodiment, the syringe body 31 is transparent and has a scale marked on its surface to observe the internal fluid condition and read the fluid volume.

The piston 32 divides the chamber into two separate chambers of varying volume, one of which is located by a portion of a push-pull rod 33. The syringe access tube 34, syringe access tube 35 and waste pipe 36 all communicate with a chamber that is free of the push-pull rod 33.

In this embodiment, the syringe outlet tube 35 is connected to the center of one wall surface of the syringe body 31. One end of the syringe outlet tube 35 is communicated with the cavity, and the other end is communicated with the syringe interface 212. The two ends of the syringe connecting pipe 35 are respectively provided with a circular protrusion along the circumference of the syringe connecting pipe 35, correspondingly, the wall surface of the syringe body 31 connected with the syringe connecting pipe 35 is provided with an annular groove matched with the protrusion, after the protrusion at one end of the syringe connecting pipe 35 is clamped into the groove on the wall surface of the syringe body 31, the end surface of the syringe connecting pipe 35 does not extend into the accommodating cavity. The projection at the other end of the syringe attachment tube 35 is fitted into the syringe attachment groove 214 such that the projection at the other end of the syringe attachment tube 35 is caught in the syringe attachment groove 214 after the attachment. The connection is stable and firm in sealing. Preferably, the syringe outlet tube 35 is made of a flexible tube material.

The two ends of the syringe access tube 34 are respectively connected with the cavity of the syringe body 31 and an external nutrient solution or medicine supply device. One end of the syringe access tube 34 is communicated with the cavity, and an annular sealing ring 341 along the circumferential direction and a one-way plate 342 hinged with the annular sealing ring are sequentially arranged in the tube at the other end along the direction from the inlet to the cavity. When the one-way plate 342 is parallel to the cross section of the syringe access tube 34, the sealing ring 341 contacts one side of the one-way plate 342, and the sealing ring 341 and the one-way plate 342 together block the inlet of the syringe access tube 34.

In this embodiment, the one-way plate 342 is hinged within the syringe access tube 34 by a hinge pin 343, the hinge pin 343 being parallel to the cross-section of the syringe access tube 34 with both ends located within the wall of the syringe access tube 34. The one-way plate 342 can rotate about the hinge pin 343. Specifically, the one-way plate 342 is provided with a hinge hole parallel to the plane where the one-way plate 342 is located and penetrating through the one-way plate 342, and the aperture of the hinge hole is not smaller than the outer diameter of the hinge pin 343. A one-way plate 342 is located within the syringe access tube 34 through which the hinge pin 343 passes. In this manner, the one-way plate 342 may rotate relative to the syringe access tube 34 about the hinge pin 343.

In this embodiment, the syringe access tube 34 is circular in cross-section, with the hinge pin 343 passing through a chord of the cross-section and not through its diameter, and the two ends of the hinge pin 343 being located on the wall of the syringe access tube 34. Preferably, the hinge pin 343 and the syringe access tube 34 are in interference fit, and two end faces of the hinge pin 343 do not protrude from the outer surface of the syringe access tube 34.

As shown in fig. 5 to 8, the one-way plate 342 is shaped as a circular plate with an outer diameter equal to the diameter of the cross section of the syringe access tube 34, except for a sector ring shaped as a part of the sealing ring 341 on one side of the hinge pin 343, to form a notch. So that the one-way plate 342 can only rotate on the side of the sealing ring 341 facing the cavity, and when the one-way plate 342 rotates, the notch of the one-way plate 342 on the side of the hinge pin 343 enables the one-way plate 342 to rotate freely without interference of the sealing ring 341, and when the one-way plate 342 is parallel to the cross section of the syringe access tube 34, the sector can be blocked and sealed by the sealing ring 341, and the part surrounded by the dotted line in fig. 7 is a part sealed by the sealing ring 341.

Based on the above structure, when the one-way plate 342 is parallel to the cross section of the syringe access tube 34, the one-way plate 342 and the sealing ring 341 close the inlet of the syringe access tube 34, and the sealing ring 341 performs a sealing function. The sealing ring 341 simultaneously limits the rotation range of the one-way plate 342: the one-way plate 342 can rotate only on one side of the sealing ring 341. When fluid flows in from the inlet of the syringe access tube 34, the fluid rushes the one-way plate 342 to rotate the one-way plate 342, and the fluid flows into the cavity through the inlet; when fluid flows from the chamber towards the inlet of the syringe access tube 34, the fluid rushes against the one-way plate 342, causing the one-way plate 342 to contact the sealing ring 341, the sealing ring 341 preventing the one-way plate 342 from rotating, the one-way plate 342 and the sealing ring 341 closing the inlet of the syringe access tube 34.

The pipe orifices of the syringe access pipe 34 and the sewage discharge pipe 36 are detachably connected with the sealing cap 37, and when the syringe access pipe 34 or the sewage discharge pipe 36 is not used, the corresponding pipeline is sealed by the sealing cap 37, so that the pollution of external impurities to the inside is prevented.

The gastrointestinal decompression device 1 may adopt a structure of the prior art and will not be described in detail herein.

The utility model discloses a working process does: when in use, the stomach tube interface 211 of the connecting device is connected with a stomach tube. When the patient needs the stomach intestine to decompress, the spanner 221 is rotated, the overhanging ends of the two connecting rods of the spanner 221 face the stomach tube interface 211 and the reducer interface 213 respectively, at the moment, the stomach tube interface 211 is communicated with the reducer interface 213, the injector interface 212 is blocked, and the stomach intestine decompressing operation can be carried out on the patient.

When a patient needs to inject medicine or nutrient solution, the mouth of the sewage discharge pipe 36 is blocked by the sealing cap 37, the sealing cap 37 of the mouth of the syringe access pipe 34 is removed, the syringe access pipe 34 is connected with a nutrient solution or medicine supply device, and the syringe interface 212 is kept blocked. The push-pull rod 33 is then pulled to draw external nutrient solution or medication into the chamber through the syringe access tube 34, whereupon the nutrient solution or medication flushes the one-way plate 342 causing the one-way plate 342 to rotate about the hinge pin 343 and fluid flows into the chamber through the inlet. Then, the wrench 221 is rotated to make the overhanging ends of the two connecting rods of the wrench 221 respectively face the gastric tube interface 211 and the syringe interface 212, at this time, the gastric tube interface 211 and the syringe interface 212 are communicated, and the reducer interface 213 is blocked. Pushing the push-pull rod 33 to inject the nutrient solution or medicine in the cavity into the stomach tube through the syringe connecting tube 35 and the three-way valve 2, and then entering the body of the patient. At this time, the nutrient solution or the medicine flows from the cavity to the inlet of the syringe access tube 34, the fluid rushes to the one-way plate 342, so that the one-way plate 342 contacts the sealing ring 341, the sealing ring 341 prevents the one-way plate 342 from rotating, and the one-way plate 342 and the sealing ring 341 jointly close the inlet of the syringe access tube 34 to prevent the nutrient solution or the medicine from flowing out.

When the interior of the syringe body 31 needs to be cleaned, the nozzle of the waste pipe 36 is closed by the sealing cap 37, the sealing cap 37 of the nozzle of the syringe insertion pipe 34 is removed, the cleaning solution is connected to the syringe insertion pipe 34, and the syringe port 212 is kept closed. Then, the push-pull rod 33 is pulled to suck the external cleaning solution into the chamber through the syringe access tube 34. The sealing cap 37 at the mouth of the waste pipe 36 is then removed, the syringe port 212 is left blocked, and the push-pull rod 33 is pushed to discharge the cleaning solution in the chamber through the waste pipe 36.

Finally, it must be said here that: the above embodiments are only used for further detailed description of the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the modifications and adjustments made by those skilled in the art according to the above-mentioned contents of the present invention are all included in the scope of the present invention.

Claims

1. A stomach tube connecting device is characterized by comprising a three-way valve (2), a gastrointestinal decompressor (1) and a fluid injector (3), wherein three joints of the three-way valve (2) are respectively connected with the stomach tube, the gastrointestinal decompressor (1) and the fluid injector (3), the three-way valve (2) is adjustably communicated with the stomach tube and the gastrointestinal decompressor (1) or the stomach tube and the fluid injector (3), the fluid injector (3) comprises an injector body (31) with a containing cavity inside, a piston (32) arranged in the containing cavity in a sliding manner, an injector access pipe (34) and an injector access pipe (35) communicated with the containing cavity, two ends of the injector access pipe (35) are respectively provided with a circular bulge along the circumferential direction of the injector body, the bulges at the two ends are respectively matched with a groove on the injector body (31) and a groove on the three-way valve (2), one end of the injector, the inner side of the other end of the tube is sequentially provided with an annular sealing ring (341) along the circumferential direction along the direction from the inlet to the accommodating cavity, and a one-way plate (342) is hinged through a hinge pin (343), when the one-way plate (342) is parallel to the cross section of the syringe access tube (34), the sealing ring (341) is contacted with one side of the one-way plate (342), the cross section of the syringe access tube (34) is circular, the one-way plate (342) is in a shape that a circular plate is removed by a sector ring, the outer diameter of the circular plate is not more than the diameter of the cross section of the syringe access tube (34) and is more than the inner diameter of the sealing ring (341), the sector ring is the same as one part of the sealing ring (341).

2. The connection device of claim 1, wherein: the one-way plate (342) is hinged in the syringe access pipe (34) through a hinge pin (343), the hinge pin (343) is parallel to the cross section of the syringe access pipe (34), two ends of the hinge pin are positioned in the wall surface of the syringe access pipe (34), the one-way plate (342) is provided with a hinge hole which is parallel to the plane of the one-way plate and penetrates through the one-way plate (342), the aperture of the hinge hole is not smaller than the outer diameter of the hinge pin (343), the one-way plate (342) is positioned in the syringe access pipe (34), and the hinge pin (343) penetrates through the hinge hole.

3. The connection device of claim 2, wherein: the hinge pin (343) passes through one chord of the cross-section and not through its diameter, the hinge pin (343) and syringe access tube (34) are interference fit, and the two end faces of the hinge pin (343) do not protrude beyond the outer surface of the syringe access tube (34).

4. The connection device of claim 1, wherein: the fluid injector (3) also comprises a plurality of sealing caps (37), and the inlet end of the injector access pipe (34) is detachably connected with the sealing caps (37).

5. The connection device of claim 4, wherein: the fluid injector (3) also comprises a drain pipe (36), one end of the drain pipe (36) is communicated with the containing cavity, and the other end of the drain pipe is detachably connected with a sealing cap (37).

6. The connection device of claim 1, wherein: three-way valve (2) are including three-way valve casing (21), and three-way valve casing (21) are including inside stomach tube interface (211) that communicate each other, syringe interface (212) and pressure reducer interface (213), and stomach tube, fluid injector (3) and stomach intestines pressure reducer (1) are connected respectively to stomach tube interface (211), syringe interface (212) and pressure reducer interface (213).

7. The connection device of claim 6, wherein: the three-way valve (2) further comprises a valve core (22), the valve core (22) is in a circular truncated cone shape, the valve core (22) is rotatably located inside the three-way valve casing (21), an L-shaped through hole is formed in the valve core (22), and two ends of the through hole are adjustable and are respectively communicated with two of the stomach tube interface (211), the injector interface (212) and the pressure reducer interface (213).

8. The connection device of claim 7, wherein: big end fixed connection spanner (221) of round platform shape, spanner (221) are located three-way valve casing (21) outside, and spanner (221) include two connecting rods that connect into L shape, and the overhanging end of two connecting rods is facing to two access & exits of L shape through-hole respectively.

9. The connection device of claim 6, wherein: an annular syringe connecting groove (214) is arranged in the syringe interface (212) along the circumferential direction of the syringe interface, and the syringe connecting groove (214) is matched and connected with a circular ring-shaped bulge at one end of the syringe outlet pipe (35).

10. The connection device of claim 9, wherein: a through hole is formed in one wall surface of the injector body (31), an annular groove is formed in the inner wall surface of the through hole, a protrusion of one end, away from the injector interface (212), of the injector connecting pipe (35) is matched with the groove in the wall surface of the injector body (31), and the end face of the end, away from the injector connecting pipe (35), of the injector connecting pipe does not extend into the accommodating cavity.