CN223627839U - Double-layer stomach tube - Google Patents
Double-layer stomach tubeInfo
- Publication number
- CN223627839U CN223627839U CN202422649555.0U CN202422649555U CN223627839U CN 223627839 U CN223627839 U CN 223627839U CN 202422649555 U CN202422649555 U CN 202422649555U CN 223627839 U CN223627839 U CN 223627839U
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Abstract
The utility model provides a double-layer stomach tube, which comprises an inner tube, an outer tube and an inner tube connector, wherein the inner tube comprises an inner tube body and an inner tube end fixedly connected to the rear end of the inner tube body, the inner tube connector is detachably and hermetically connected with the inner tube end, the outer tube is sleeved outside the inner tube, the outer diameters of the inner tube body and the inner tube end are smaller than the inner diameter of the outer tube, the front section of the inner tube body extends out of the front end of the outer tube, a plurality of side holes are formed in the front section of the inner tube body, when the condition of stomach tube blockage and the like occurs, the inner tube is pulled out along the outer tube, cleaned and sterilized, then is reinserted along the outer tube, or a new inner tube is replaced and inserted along the outer tube, when the outer tube needs to be replaced, the inner tube is connected with the extension tube, and then the outer tube is pulled out along the inner tube and the extension tube, so that the success rate of repeated intubation is improved, and when the inner tube is inserted and pulled out, the inner tube cannot contact with the esophagus and other parts of a patient due to the isolation function of the outer tube.
Description
Technical Field
The utility model relates to the technical field of gastric tubes, in particular to a double-layer gastric tube.
Background
The stomach tube is a medical catheter which is inserted through nostrils or oral cavities, passes through the throat and the esophagus to reach the stomach, one end of the stomach tube is placed in the stomach, and the other end of the stomach tube is led out through the nasal cavity or the oral cavity. The application is used for extracting gastric contents such as gastric juice, gastrointestinal tract qi accumulation or blood clots during gastrointestinal bleeding, and the like, and medicines, nutrient solution or food can be infused through the gastric tube.
The success rate of the stomach tube insertion is closely related to the technical level, experience and patient matching of medical staff. When the stomach tube used by the patient is blocked, the stomach tube needs to be replaced immediately. Meanwhile, due to long-term retention, gastric acid corrosion and irritation can cause gastric tube aging and damage, and the functions of the gastric tube are affected, so that the nutrition intake and recovery of a patient are affected. Therefore, the gastric tube also needs to be replaced periodically. However, when the existing single-tube-structure gastric tube is replaced, the old tube must be completely pulled out and then a new tube must be inserted. The process not only increases the pain of the patient, but also can cause the damage of esophagus and gastric mucosa due to improper operation or mismatching of the patient, and the uncomfortable symptoms such as bleeding, pain and the like are caused, so that the patient is more likely to be mistakenly inserted into the trachea, the aspiration pneumonia is caused, and the life health of the patient is seriously threatened. Therefore, a novel double-layer stomach tube which is convenient to replace, simple and practical is needed to solve the problems.
Disclosure of Invention
The utility model aims to solve the problems in the background technology and provides a novel double-layer gastric tube which is convenient to replace the gastric tube, relieves the discomfort such as bleeding and pain caused by inserting the gastric tube and improves the success rate of intubation.
The double-layer stomach tube comprises an inner tube, an outer tube and an inner tube connector, wherein the inner tube comprises an inner tube body and an inner tube end fixedly connected to the rear end of the inner tube body, and the inner tube connector is detachably and hermetically connected with the inner tube end;
The outer pipe sleeve is arranged outside the inner pipe, the outer diameters of the inner pipe body and the inner pipe end are smaller than the inner diameter of the outer pipe, the front section of the inner pipe body extends out of the front end of the outer pipe, a plurality of side holes are formed in the front section of the inner pipe body extending out of the outer pipe, and the inner pipe can slide along the axis of the outer pipe.
Further, the double-layer stomach tube further comprises an extension tube, the extension tube comprises an extension tube body and an extension tube end fixedly connected to the front end of the extension tube body, a first thread is arranged on the inner wall surface of the inner tube end, a fifth thread is arranged on the outer wall surface of the extension tube end, and the first thread is in threaded connection with the fifth thread to realize detachable connection of the inner tube end and the extension tube end;
The outer diameter of the extension pipe body and the end of the extension pipe is smaller than the inner diameter of the outer pipe, the length of the extension pipe body is greater than or equal to that of the outer pipe, and the outer pipe can slide along the axis of the inner pipe and the extension pipe.
The inner pipe joint comprises a conical pipe, a connecting pipe, a sealing cap and a connecting belt, wherein the conical pipe is of a hollow conical structure with a closed front end face and an open rear end face, the connecting pipe is fixedly connected to the front end face of the conical pipe and is communicated with an inner cavity of the conical pipe, the sealing cap is connected to the rear end of the conical pipe through the connecting belt, and the sealing cap is used for sealing the rear end face of the conical pipe;
The inner wall surface of the inner pipe end is provided with first threads, the outer wall surface of the connecting pipe is provided with second threads, and the first threads are in threaded connection with the second threads, so that the inner pipe end and the connecting pipe can be detachably connected.
Further, the outer tube comprises an outer tube body and an outer tube end head fixedly connected to the front end of the outer tube body.
Further, the double-layer stomach tube further comprises a connecting structure for detachably connecting the inner tube connector and the outer tube, the connecting structure comprises a connecting sleeve and a connecting plate, the connecting sleeve is of a hollow cylinder structure with an open rear end face and a sleeved hole in the front end face, the connecting sleeve is sleeved outside the outer tube body, the open rear end face of the connecting sleeve faces the outer tube end, and the diameter of the sleeved hole is smaller than the outer diameter of the outer tube end and larger than the outer diameter of the outer tube body;
The connecting sleeve is characterized in that a third thread is arranged on the inner wall surface of the connecting sleeve, the connecting plate is fixedly arranged on the inner pipe joint, a fourth thread is arranged on the outer wall surface of the connecting plate, and the third thread is in threaded connection with the fourth thread, so that the connecting sleeve and the connecting plate can be detachably connected.
Further, the connection structure further comprises a limiting plate fixedly arranged on the outer side of the outer pipe body, the front end face of the connection sleeve is positioned between the outer pipe end head and the limiting plate, and the diameter of the sleeve joint hole is smaller than the outer diameter of the limiting plate.
Further, a sealing ring is arranged on the front end face of the conical tube in a cushioning mode.
Further, the front end head of the inner pipe body is of a round head structure, the front end face of the outer pipe is of a circular ring structure, and the inner side edge and the outer side edge of the circular ring structure are in arc transition.
Further, the outer walls of the inner pipe body and the outer pipe are marked with scale marks representing the lengths and corresponding scale values.
The double-layer stomach tube integrally adopts a sleeved double-layer tube structure of the outer tube and the inner tube, when the stomach tube is inserted, the outer tube is firstly inserted into the stomach of a patient from the nose or the mouth by adopting a conventional stomach tube insertion method, then the inner tube is inserted along the outer tube and enters the stomach, so that the intubation is completed, the inner tube connector is connected with the inner tube, and gastric contents can be extracted through the inner tube or medicines, nutrient solutions and foods can be injected through the inner tube;
When the gastric tube is blocked, the inner tube is pulled out along the outer tube, dredged, cleaned and disinfected, and then reinserted along the outer tube, or a new inner tube is replaced and inserted along the outer tube; the outer tube is used as the intubation channel of the inner tube, so that the replacement time of the outer tube can be prolonged, when the outer tube needs to be replaced, the outer tube is pulled out along the inner tube and the extension tube after the extension tube is connected with the inner tube, and a new outer tube is inserted along the inner tube and the extension tube.
Drawings
FIG. 1 is a schematic view showing the overall structure of a double-layer gastric tube in example 1 of the present utility model.
Fig. 2 is a schematic structural view of the inner tube 1 in the present utility model.
Fig. 3 is a schematic structural view of the outer tube 2 in embodiment 1 of the present utility model.
Fig. 4 is a schematic structural view of the inner pipe joint 3 in embodiment 1 of the present utility model.
Fig. 5 is a schematic view showing the overall structure of a double-layer gastric tube in embodiment 2 of the present utility model.
Fig. 6 is a schematic view showing the structure of the outer tube 2 in embodiment 2 of the present utility model.
Fig. 7 is a schematic view showing a partially sectional structure of the rear end of the outer tube 2 in embodiment 2 of the present utility model.
Fig. 8 is a schematic structural view of the inner pipe joint 3 in embodiment 2 of the present utility model.
Fig. 9 is a schematic view of the structure of the extension tube 4 of the present utility model.
The reference numerals are explained as an inner tube 1, an inner tube body 11, a side hole 111, an inner tube end 12, a first screw thread 121, an outer tube 2, an outer tube body 21, an outer tube end 22, a connection sleeve 23, a third screw thread 231, a socket hole 232, a stopper 24, an inner tube joint 3, a conical tube 31, a connection tube 32, a second screw thread 321, a closing cap 33, a connection strap 34, a connection plate 35, a fourth screw thread 351, an extension tube 4, an extension tube body 41, an extension tube end 42, and a fifth screw thread 421.
Detailed Description
For a clearer description of embodiments of the utility model or of the prior art, the drawings that are needed in the description of the embodiments or of the prior art will be briefly described, it will be apparent that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained by a person skilled in the art without inventive effort, the utility model being further described below with reference to the accompanying drawings:
example 1
Referring to the accompanying drawings 1 and 9 of the specification, the double-layer stomach tube comprises an inner tube 1, an outer tube 2, an inner tube joint 3 and an extension tube 4.
Referring to fig. 2 of the specification, the inner tube 1 includes an inner tube body 11 and an inner tube end 12 fixedly connected to the rear end of the inner tube body 11, the inner tube end 12 is of a hollow structure communicated with the inner cavity of the inner tube body 11, a first thread 121 is arranged on the inner wall surface of the inner tube end 12, a plurality of side holes 111 are formed in the front section of the inner tube body 11, the side holes 111 serve as passage ports for communicating a gastric cavity with the inner cavity of the inner tube body 11, the front end of the inner tube body 11 is of a round head structure, the damage of the inner tube body 11 to gastric mucosa can be further reduced, discomfort such as bleeding and pain can be prevented to a certain extent, and scale marks representing lengths and corresponding scale values are marked on the outer wall of the inner tube body 11 so that the length of the inner tube body 11 is placed in can be observed intuitively.
Referring to fig. 3 of the specification, the outer tube 2 includes an outer tube body 21 and an outer tube end 22 fixedly connected to the front end of the outer tube body 21, the outer tube end 22 is of a hollow structure communicated with the inner cavity of the outer tube body 21, the outer diameters of the inner tube body 11 and the inner tube end 12 are smaller than the inner diameters of the outer tube body 21 and the outer tube end 22, the outer tube 2 is sleeved outside the inner tube 1, the inner tube 1 can slide along the axis of the outer tube 2, the outer tube 2 can slide along the axis of the inner tube 1, the front section of the inner tube body 11 extends out of the front end of the outer tube body 21, and the side holes 111 are formed in the section (the length of the section is about 5 cm to 9 cm) of the inner tube body 11 extending out of the outer tube body 21.
The outer wall of the outer tube body 21 is marked with scale marks representing the length and corresponding scale values so as to visually observe the length of the outer tube body 21, the front end face of the outer tube body 21 is of a circular ring-shaped structure, and the inner side edge and the outer side edge of the circular ring-shaped structure are in arc transition, so that the front end face edge of the outer tube body 21 is round and smooth, the damage of the outer tube body 21 to gastric mucosa or esophagus mucosa and other parts can be further reduced when the outer tube body 21 is placed, and discomfort such as bleeding and pain can be prevented to a certain extent.
Referring to fig. 4 of the specification, the inner tube connector 3 comprises a conical tube 31, a connecting tube 32, a closing cap 33 and a connecting band 34, wherein the front end face of the conical tube 31 is of a hollow conical structure with an open rear end face, the connecting tube 32 is fixedly connected to the front end face of the conical tube 31 and is communicated with the inner cavity of the conical tube 31, the conical tube 31 is made of elastic materials and is used for connecting an injector or other instruments to extract gastric contents or inject medicines, nutrient solutions or foods through the inner tube 1, the closing cap 33 is connected to the rear end of the conical tube 31 through the connecting band 34, and the closing cap 33 is used for closing the rear end face of the conical tube 31 when the gastric contents are not required to be extracted or the medicines, nutrient solutions or foods are injected through the inner tube;
The outer wall surface of the connecting pipe 32 is provided with a second thread 321, and the first thread 121 is in threaded connection with the second thread 321, so that the inner pipe end 12 is detachably connected with the connecting pipe 32, and the inner pipe 1 and the inner pipe joint 3 are detachably connected.
In order to ensure the sealing connection between the inner tube 1 and the inner tube joint 3 and prevent leakage of gastric contents or medicines, nutrient solution or food, a rubber sealing ring is arranged on the front end surface of the conical tube 31 in a pad manner, and after the inner tube end 12 and the connecting tube 32 are in threaded connection, the sealing ring is tightly clamped between the end surface of the inner tube end 12 and the front end surface of the conical tube 31, so that leakage of gastric contents or medicines, nutrient solution or food can be prevented from the joint of the inner tube end 12 and the connecting tube 32.
Referring to fig. 9 of the specification, the extension pipe 4 includes an extension pipe body 41 and an extension pipe end 42 fixedly connected to the front end of the extension pipe body 41, where the extension pipe body 41 and/or the extension pipe end 42 may be of a solid structure or a hollow structure, a fifth thread 421 is provided on an outer wall surface of the extension pipe end 42, and the first thread 121 is in threaded connection with the fifth thread 421, so as to realize detachable connection between the inner pipe end 12 and the extension pipe end 42, that is, detachable connection between the inner pipe 1 and the extension pipe 4.
The outer diameters of the extension pipe body 41 and the extension pipe end 42 are smaller than the inner diameters of the outer pipe body 21 and the outer pipe end 22, the length of the extension pipe body 41 is larger than or equal to that of the outer pipe 2, the outer pipe 2 slides along the axes of the inner pipe 1 and the extension pipe 4, and the outer pipe 2 is placed in or pulled out along the inner pipe 1 and the extension pipe 4.
The double-layer stomach tube in the embodiment 1 is used for assisting a patient to take a semi-sitting position when the stomach tube is inserted for the first time, spreading a therapeutic towel, cleaning nostrils or oral cavities of the patient, selecting a nostril or oral cavity inlet tube on one side which is smoothly ventilated, taking out the outer tube 2, lubricating the front section of the outer tube 2 by paraffin oil, holding the outer tube 2 by left hand-held gauze, clamping the front section of the outer tube 2 by right hand-held forceps, inserting the outer tube 2 along the selected nostril or oral cavity, slowly and gently inserting the outer tube along the selected nostril or oral cavity, slowly inserting the outer tube into the throat part (14-16 cm), ordering the patient to perform swallowing, advancing the outer tube 2 forward by the patient when swallowing until the outer tube is of a preset length, determining whether the outer tube 2 is successfully inserted by using a gastric juice extraction method, an air-hearing and water-passing method and the like, and fixing the outer tube 2 by using articles such as medical adhesive tapes after the insertion is successful;
The inner tube 1 is taken out, the inner tube joint 3 is connected with the inner tube 1 through the threaded connection of the inner tube end 12 and the connecting tube 32, the front section of the inner tube 1 is lubricated by paraffin oil, the outer tube 2 is supported by left hand gauze, the front section of the inner tube 1 is clamped by right hand tweezers, the inner tube 1 is inserted along the outer tube 2 until reaching a preset length (the preset length can be primarily judged through marked scale marks representing the length on the outer walls of the inner tube body 11 and the outer tube body 21), the side hole 111 arranged at the front section of the inner tube 1 extends out of the front end of the outer tube 2, the inner tube 1 and/or the inner tube joint 3 are fixed by using articles such as medical adhesive tapes after the inner tube is successfully placed, when the stomach contents are required to be extracted or medicines, nutrient solutions or foods are injected through the inner tube, the stomach contents extraction or the injection medicines, nutrient solutions or foods can be carried out by opening the sealing and sleeving the instrument such as a syringe with the conical tube 31, and the operation of extracting the stomach contents or injecting medicines, nutrient solutions or foods is finished through the sealing cap 33.
When the inner tube 1 is blocked or needs to be replaced due to other reasons, the inner tube 1 is released from being fixed, the outer tube 2 is supported by left-hand gauze, the rear section of the inner tube 1 is clamped by right-hand tweezers, the inner tube 1 is pulled out along the outer tube 2, the inner tube 1 is discarded in a medical trash can after being pulled out, a new inner tube 1 is taken out, and the inner tube 1 is successfully placed and fixed along the outer tube 2 by adopting the same inner tube 1 placement method;
When the outer tube 2 needs to be replaced, the inner tube end 12 and the connecting tube 32 are unscrewed through threads, the inner tube connector 3 is separated from the inner tube 1, the extension tube 4 is taken out, the inner tube connector 3 is connected with the extension tube 4 through threads of the inner tube end 12 and the extension tube end 42, the outer tube 2 is fixed, left-hand gauze holds the inner tube 1 and the extension tube 4, right-hand tweezers clamp the rear section of the outer tube 2, the outer tube 2 is pulled outwards along the inner tube 1 and the extension tube 4, the outer tube 2 is discarded in a medical garbage can after being pulled out, a new outer tube 2 is taken out, the front section of the outer tube 2 is lubricated by paraffin oil, the left-hand gauze holds the inner tube 1 and the extension tube 4, the right-hand tweezers clamp the front section of the outer tube 2, the outer tube 2 is inserted into the inner tube 1 along the extension tube 4 until a preset length is reached, and after the outer tube 2 is fixed by using medical adhesive tape and other articles after the insertion success.
Example 2
The inventor finds that after the inner tube 1 and the outer tube 2 are respectively put in place, the inner tube 1 and the outer tube 2 need to be fixed in position, on one hand, the whole gastric tube is prevented from being pulled out or displaced, on the other hand, the inner tube 1 and the outer tube 2 are prevented from being displaced relatively, if the inner tube 1 and the outer tube 2 are respectively fixed in position, the fixing difficulty is increased, and meanwhile, the inner tube 1 and the outer tube 2 are difficult to ensure not to be displaced relatively;
Thus, in view of the above problems, based on embodiment 1 and referring to fig. 5 and 9 of the specification, a double-layered gastric tube includes an inner tube 1, an outer tube 2, an inner tube connector 3, an extension tube 4, and a connection structure for detachably connecting the inner tube connector 3 and the outer tube 2.
Referring to fig. 6-7 of the specification, the connection structure comprises a connection sleeve 23 and a connection plate 35, wherein the connection sleeve 23 is a hollow cylinder structure with an open rear end face and a sleeved hole 232 formed in a front end face, the connection sleeve 23 is sleeved outside the outer pipe body 21, the open rear end face of the connection sleeve 23 faces the outer pipe end 22, a third thread 231 is arranged on the inner wall surface of the connection sleeve 23, the diameter of the sleeved hole 232 is smaller than the outer diameter of the outer pipe end 22 and larger than the outer diameter of the outer pipe body 21, so that the connection sleeve 23 can move along the outer pipe body 21 and is limited by the outer pipe end 22;
Referring to fig. 8 of the specification, a connection plate 35 is fixedly installed at the outer side of the tapered tube 31 of the inner tube fitting 3, and a fourth thread 351 is provided on the outer wall surface of the connection plate 35;
The third thread 231 is in threaded connection with the fourth thread 351, so that the connection sleeve 23 is detachably connected with the connection plate 35, and the inner pipe joint 3 is detachably connected with the outer pipe 2.
Because the rear end of the connecting sleeve 23 is limited by the outer tube end 22, in order to prevent the connecting sleeve 23 from entering the nasal cavity or oral cavity of a patient when moving along the outer tube body 21, the front end of the connecting sleeve 23 needs to be limited, and referring to fig. 6-7 of the specification, the connecting structure further comprises a limiting plate 24 fixedly arranged on the outer side of the outer tube body 21, the limiting plate 24 is a distance away from the outer tube end 22, the front end surface of the connecting sleeve 23 is positioned between the outer tube end 22 and the limiting plate 24, and the diameter of the sleeve-connecting hole 232 is smaller than the outer diameter of the limiting plate 24, so that the connecting sleeve 23 can only move along the outer tube body 21 between the outer tube end 22 and the limiting plate 24.
After the inner tube 1 and the outer tube 2 are put in place, a sealing ring is sleeved outside the connecting tube 32, after the inner tube end 12 and the connecting tube 32 are connected in place by threads, the sealing ring is tightly clamped between the end face of the inner tube end 12 and the front end face of the conical tube 31, so that gastric contents or medicines, nutrient solutions or foods can be prevented from leaking from the connecting position of the inner tube end 12 and the connecting tube 32, the outer tube 2 is close to the inner tube end 3, the connecting sleeve 23 is sleeved on the connecting plate 35, the connecting sleeve 23 is rotated, the connecting sleeve 23 and the connecting plate 35 are connected with the fourth threads 351 by the third threads 231, and after the connecting sleeve 23 and the connecting plate 35 are connected in place by threads, the sealing ring is tightly clamped between the end face of the outer tube end 22 and the front end face of the conical tube 31, namely, the detachable fixed connection of the inner tube end 3 and the outer tube 2 is realized, a cavity between the inner tube 1 and the outer tube 2 is sealed, and the gastric contents can be prevented from leaking from the connecting position of the outer tube end 22 and the connecting tube 32.
The double-layer stomach tube in the embodiment 2 is used by assisting a patient to take a semi-sitting position when the stomach tube is inserted for the first time, spreading a therapeutic towel, cleaning nostrils or oral cavities of the patient, selecting a nostril or oral cavity inlet tube on one side which is smoothly ventilated, taking out the outer tube 2, lubricating the front section of the outer tube 2 by paraffin oil, holding the outer tube 2 by left hand-held gauze, clamping the front section of the outer tube 2 by right hand-held forceps, inserting the outer tube 2 along the selected nostril or oral cavity, slowly and gently inserting the outer tube along the selected nostril or oral cavity, slowly inserting the outer tube into the throat (14-16 cm) after the right hand-held forceps are slightly upward and parallel, and ordering the patient to perform swallowing, advancing the outer tube 2 forward by the patient when swallowing, until the outer tube 2 reaches a preset length, determining whether the outer tube 2 is successfully inserted by using a gastric juice extraction method and/or an air-breathing method, and fixing the outer tube 2 by using articles such as medical adhesive tapes after the insertion is successful;
Taking out the inner tube 1, connecting the inner tube joint 3 with the inner tube 1 through the threaded connection of the inner tube end 12 and the connecting tube 32, lubricating the front section of the inner tube 1 by paraffin oil, holding the outer tube 2 by a left hand gauze, clamping the front section of the inner tube 1 by a right hand tweezers, inserting the inner tube 1 along the outer tube 2 until reaching a preset length (which can be primarily judged by marking scale marks representing the length on the outer walls of the inner tube body 11 and the outer tube body 21) and enabling the side hole 111 arranged at the front section of the inner tube 1 to extend out of the front end of the outer tube 2, connecting the outer tube 2 with the inner tube joint 3 through the threaded connection of the connecting sleeve 23, fixing the inner tube 1 and/or the inner tube joint 3 through articles such as medical tapes after successful placement, and sealing and sleeving the inner tube 31 with the instrument such as a syringe, so as to extract or inject the medicine, the liquid or the food through the inner tube, and sealing and sleeving the conical tube 33, and re-sealing the inner tube 31 after the operation of extracting the stomach contents or the medicine, the liquid or the food through the inner tube.
When the inner tube 1 is blocked or needs to be replaced due to other reasons, the inner tube 1 is released from being fixed, the connecting sleeve 23 and the connecting plate 35 are unscrewed through threads, the outer tube 2 is separated from the inner tube connector 3, the outer tube 2 is supported by left-hand gauze, the rear section of the inner tube 1 is clamped by right-hand tweezers, the inner tube 1 is pulled out outwards towards the outer tube 2, the inner tube 1 is discarded in a medical trash can after being pulled out, a new inner tube 1 is taken out, and the inner tube 1 is successfully placed and fixed along the outer tube 2 by adopting the same inner tube 1 placement method as the above;
When the outer tube 2 needs to be replaced, the connecting sleeve 23 and the connecting plate 35 are unscrewed through threads, the outer tube 2 and the inner tube connector 3 are separated, the inner tube end 12 and the connecting tube 32 are unscrewed through threads, the inner tube connector 3 and the inner tube 1 are separated, the extension tube 4 is taken out, the inner tube connector 3 and the extension tube 4 are connected well through threads of the inner tube end 12 and the extension tube end 42, the outer tube 2 is fixed, the inner tube 1 and the extension tube 4 are held by left hand gauze, the rear section of the outer tube 2 is clamped by right hand tweezers, the outer tube 2 is pulled outwards along the inner tube 1 and the extension tube 4, the outer tube 2 is discarded in a medical garbage bin after being pulled out, a new outer tube 2 is taken out, the front section of the outer tube 2 is lubricated by paraffin oil, the inner tube 1 and the extension tube 4 are held by left hand gauze, the front section of the outer tube 2 is clamped by right hand tweezers, the outer tube 2 is inserted into the outer tube 2 along the extension tube 4 and the inner tube 1 until a preset length is reached, and the outer tube 2 is fixed by using articles such as medical adhesive tapes after being successfully put in.
It is apparent that modifications and/or additions of parts can be made to the above-described double-layered gastric tube and corresponding method without departing from the field and scope of the present utility model.
It is also clear that, although the present utility model has been described in detail with respect to this double-layered gastric tube, a person skilled in the art shall certainly be able to achieve many other equivalent forms of double-layered gastric tube and corresponding method, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
Claims (9)
1. The double-layer stomach tube is characterized by comprising an inner tube (1), an outer tube (2) and an inner tube connector (3), wherein the inner tube (1) comprises an inner tube body (11) and an inner tube end (12) fixedly connected to the rear end of the inner tube body (11), and the inner tube connector (3) is detachably and hermetically connected with the inner tube end (12);
the outer tube (2) is sleeved outside the inner tube (1), the outer diameters of the inner tube body (11) and the inner tube end (12) are smaller than the inner diameter of the outer tube (2), the front section of the inner tube body (11) extends out of the front end of the outer tube (2), a plurality of side holes (111) are formed in the front section of the inner tube body (11) extending out of the outer tube (2), and the inner tube (1) can slide along the axis of the outer tube (2).
2. The double-layer stomach tube according to claim 1, wherein the double-layer stomach tube further comprises an extension tube (4), the extension tube (4) comprises an extension tube body (41) and an extension tube end head (42) fixedly connected to the front end of the extension tube body (41), a first thread (121) is arranged on the inner wall surface of the inner tube end head (12), a fifth thread (421) is arranged on the outer wall surface of the extension tube end head (42), and the first thread (121) is in threaded connection with the fifth thread (421) so as to realize detachable connection of the inner tube end head (12) and the extension tube end head (42);
The outer diameter of the extension pipe body (41) and the outer diameter of the extension pipe end (42) are smaller than the inner diameter of the outer pipe (2), the length of the extension pipe body (41) is larger than or equal to the length of the outer pipe (2), and the outer pipe (2) can slide along the axes of the inner pipe (1) and the extension pipe (4).
3. The double-layer stomach tube according to claim 1, wherein the inner tube connector (3) comprises a conical tube (31), a connecting tube (32), a sealing cap (33) and a connecting band (34), the conical tube (31) is of a hollow conical structure with a sealed front end surface and an open rear end surface, the connecting tube (32) is fixedly connected to the front end surface of the conical tube (31) and communicated with the inner cavity of the conical tube (31), the sealing cap (33) is connected to the rear end of the conical tube (31) through the connecting band (34), and the sealing cap (33) is used for sealing the rear end surface of the conical tube (31);
The inner wall surface of the inner pipe end (12) is provided with a first thread (121), the outer wall surface of the connecting pipe (32) is provided with a second thread (321), and the first thread (121) is in threaded connection with the second thread (321) so as to realize the detachable connection of the inner pipe end (12) and the connecting pipe (32).
4. The double-layer stomach tube according to claim 1, wherein the outer tube (2) comprises an outer tube body (21) and an outer tube end head (22) fixedly connected to the front end of the outer tube body (21).
5. The double-layer stomach tube according to claim 4, wherein the double-layer stomach tube further comprises a connecting structure for detachably connecting the inner tube connector (3) with the outer tube (2), the connecting structure comprises a connecting sleeve (23) and a connecting plate (35), the connecting sleeve (23) is a hollow cylinder structure with an open rear end face and a sleeved hole (232) formed in the front end face, the connecting sleeve (23) is sleeved outside the outer tube body (21), the open rear end face of the connecting sleeve (23) faces the outer tube end (22), and the diameter of the sleeved hole (232) is smaller than the outer diameter of the outer tube end (22) and larger than the outer diameter of the outer tube body (21);
The connecting sleeve is characterized in that a third thread (231) is arranged on the inner wall surface of the connecting sleeve (23), the connecting plate (35) is fixedly arranged on the inner pipe joint (3), a fourth thread (351) is arranged on the outer wall surface of the connecting plate (35), the third thread (231) is in threaded connection with the fourth thread (351), and the connecting sleeve (23) is detachably connected with the connecting plate (35).
6. The double-layer stomach tube according to claim 5, wherein the connecting structure further comprises a limiting plate (24) fixedly arranged on the outer side of the outer tube body (21), the front end face of the connecting sleeve (23) is positioned between the outer tube end (22) and the limiting plate (24), and the diameter of the sleeving hole (232) is smaller than the outer diameter of the limiting plate (24).
7. A double-layer stomach tube according to claim 3, wherein a sealing ring is arranged on the front end surface of the conical tube (31).
8. The double-layer stomach tube as set forth in claim 1, wherein the front end of the inner tube body (11) is of a round head structure, the front end of the outer tube (2) is of a circular ring structure, and the inner and outer edges of the circular ring structure are in arc transition.
9. The double-layer stomach tube according to claim 1, wherein the outer walls of the inner tube body (11) and the outer tube (2) are marked with scale marks representing the lengths and corresponding scale values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422649555.0U CN223627839U (en) | 2024-10-31 | 2024-10-31 | Double-layer stomach tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422649555.0U CN223627839U (en) | 2024-10-31 | 2024-10-31 | Double-layer stomach tube |
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