CN219764243U - Direction-adjustable ultrasonic guiding nasal intestinal canal placement auxiliary device - Google Patents
Direction-adjustable ultrasonic guiding nasal intestinal canal placement auxiliary device Download PDFInfo
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- CN219764243U CN219764243U CN202320996081.XU CN202320996081U CN219764243U CN 219764243 U CN219764243 U CN 219764243U CN 202320996081 U CN202320996081 U CN 202320996081U CN 219764243 U CN219764243 U CN 219764243U
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- 230000000968 intestinal effect Effects 0.000 title description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 172
- 238000002347 injection Methods 0.000 claims abstract description 63
- 239000007924 injection Substances 0.000 claims abstract description 63
- 230000002496 gastric effect Effects 0.000 abstract description 35
- 238000005452 bending Methods 0.000 abstract description 6
- 239000003550 marker Substances 0.000 abstract description 3
- 238000002604 ultrasonography Methods 0.000 abstract description 3
- 230000002183 duodenal effect Effects 0.000 description 8
- 210000001187 pylorus Anatomy 0.000 description 7
- 210000001035 gastrointestinal tract Anatomy 0.000 description 5
- 210000000936 intestine Anatomy 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 210000001630 jejunum Anatomy 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 210000004203 pyloric antrum Anatomy 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 206010003504 Aspiration Diseases 0.000 description 1
- 206010070545 Bacterial translocation Diseases 0.000 description 1
- 206010021518 Impaired gastric emptying Diseases 0.000 description 1
- 206010033627 Pancreatic injury Diseases 0.000 description 1
- 206010033645 Pancreatitis Diseases 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 201000000660 Pyloric Stenosis Diseases 0.000 description 1
- 230000007375 bacterial translocation Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000002318 cardia Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 102000038379 digestive enzymes Human genes 0.000 description 1
- 108091007734 digestive enzymes Proteins 0.000 description 1
- 210000001198 duodenum Anatomy 0.000 description 1
- 210000000624 ear auricle Anatomy 0.000 description 1
- 239000002961 echo contrast media Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 208000021302 gastroesophageal reflux disease Diseases 0.000 description 1
- 208000001288 gastroparesis Diseases 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 230000007358 intestinal barrier function Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
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- 230000000638 stimulation Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 210000002417 xiphoid bone Anatomy 0.000 description 1
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Abstract
The utility model discloses an ultrasonic guiding naso-intestinal tube placement auxiliary device with adjustable direction, which belongs to the technical field of medical appliances and comprises a catheter, a guide wire and a water bag which are integrally formed. The conduit is a hollow structure with thicker pipe wall, 4 water injection pipes are symmetrically and alternately distributed on the pipe wall, and 4 conical water bags are symmetrically and alternately distributed on the head end of the conduit and are respectively communicated with the water injection pipes. After two or three water bags are expanded through water injection of the water injection pipe, the guide pipe at the bottom of the water bag can move towards the direction of the water bag which is not filled, so that the direction of the guide wire is adjusted, and the guide wire can pass through the part with larger gastrointestinal bending angle. After the water sac is full and large, the gastrointestinal cavity can be expanded, so that the guide wire can smoothly pass through the gastrointestinal cavity with narrow obstruction, and the guide pipe can be guided to move forwards. The end of the guide wire is soft and extends out of the catheter, so that the gastrointestinal wall is not damaged. The water bladder may also serve as a good marker of ultrasound display catheter position. The utility model can improve the success rate of ultrasonic guiding nose-intestine tube placement, shorten the time of placement and relieve the pain of patients.
Description
Technical Field
The utility model relates to an auxiliary device capable of adjusting the direction and used for nasal placement of an empty intestinal canal under ultrasonic guidance, and belongs to the technical field of medical appliances.
Background
Nasal enteral tube feeding is one of the currently important nutrition support means, and for patients with intestinal tract still functioning and no contraindications, enteral nutrition is suggested to be carried out early, so that intestinal barrier function can be maintained, bacterial translocation is reduced, and prognosis of the patients is improved. Nasal-intestinal tube feeding can reduce gastroesophageal reflux and reduce the risk of aspiration and pulmonary infection of patients. For patients with severe pancreatitis, placing the nose-intestine tube can reduce secretion of pancreatic digestive enzymes, and avoid aggravating pancreatic injury.
At present, the nose intestine tube is mainly provided with the following methods: (1) the blind insertion method is to insert the nasal intestinal tube into the jejunum by bare hands, and the tube is arranged by virtue of the experience of an operator, so that the time consumption is long, the success rate is low, and complications such as damage and perforation of the respiratory tract and the digestive tract can be caused; (2) the X-ray fluoroscopy down tube is limited by the place, and patients are often required to be exposed to rays for a long time, so that the tube is not suitable for children and pregnant women; (3) the gastroscope guides the lower tube, improves the success rate of tube placement, but belongs to invasive operation, has great stimulation to patients and can cause complications such as cranium high pressure, bleeding and the like.
The nasal intestinal canal placement operation under ultrasonic guidance is a new technology developed in recent years, has the functions of guiding and confirming the position in real time, is simple and convenient to operate, has no radiation pollution, and improves the success rate of the placement of the nasal intestinal canal. However, in some difficult cases, such as gastroparesis, pyloric obstruction, gastrointestinal deformity, stenosis, and excessive bending angle of gastrointestinal tract, the success rate of the tube placement is significantly reduced.
Disclosure of Invention
The utility model aims to solve the defects of the existing nasal intestinal canal placement technology, and provides a nasal intestinal canal placement auxiliary device with adjustable direction according to the characteristics of ultrasonic guidance.
The utility model aims at realizing the aim that the ultrasonic guiding nose intestine tube placement auxiliary device with adjustable direction comprises a catheter main body and a water sac; the guide wire is arranged in the catheter cavity and can extend to the head end of the catheter body, the tail part of the guide wire is exposed out of the tail part of the catheter body, the inner side wall of the catheter is arranged outside the catheter cavity, the outer side wall of the catheter is arranged outside the inner side wall of the catheter, 4 water injection pipes are symmetrically distributed between the outer side wall of the catheter and the inner side wall of the catheter, the tail end of each water injection pipe is led out from the upper part of the catheter body, the tail ends of four water injection pipes which are symmetrically distributed are led out at intervals at the upper part of the catheter body, a one-way valve is arranged on the tail end of each water injection pipe which is led out, the four injectors are connected with the injectors through the one-way valves, and the four injectors can inject water into the corresponding water injection pipes in the catheter body through the corresponding one-way valves; four conical water bags are distributed around the head end of the catheter main body and are arranged around the water injection pipe, each water bag is communicated with the corresponding water injection pipe through a corresponding hole, and the corresponding water bag can be expanded after water is injected into the corresponding water bag through the water injection pipe and the corresponding hole.
The catheter main body, the water injection pipe and the water sac are integrally formed.
Specifically, the utility model adopts the following technical scheme:
an ultrasonic guiding nose-intestine tube placement auxiliary device with adjustable direction is characterized by comprising a guide wire, a guide tube and a water bag. The head end of the guide wire is softer and can extend out of the catheter, so that the gastrointestinal wall is not damaged; besides the head end, the guide wire is hard and medium, and can play a good role in supporting the catheter. The pipe wall of the conduit is thicker, four water injection pipes are arranged on the pipe wall, and the tail end of the conduit is provided with a one-way valve which can be connected with a syringe for water injection; four conical water bags are arranged around the head end of the catheter and are arranged around the catheter, and the water bags expand after water injection; by injecting water into different water bags, the water bags are in a cone shape, the bottom of the cone body pushes the gastrointestinal wall, and the gastrointestinal wall rebounds to push the catheter, so that the tail part of the catheter moves towards the direction of the water bags which are not injected with water, the effect of adjusting the direction of the catheter is achieved, and the catheter and the guide wire can pass through the part with larger bending angle of the gastrointestinal cavity, such as the antrum and the duodenal bulb; the water sac is filled, so that the gastrointestinal wall of the obstruction can be properly spread, and the guide tube and the guide wire can pass through the gastrointestinal cavity of the narrow obstruction; and the water bladder may be a good marker of ultrasound display catheter position.
Preferably, the conduit, the water bag and the water injection pipe are integrally formed. Four water injection pipes are symmetrically and alternately distributed on the pipe wall of the conduit.
Preferably, the water bag is located at a position 1cm away from the tail end of the catheter main body, the four water injection pipes are respectively communicated with the corresponding water bags through holes, the water bags are conical in shape in a complete filling state, the thickness of the near head end is 0.5cm, the thickness of the near tail end is 3cm, and the length of the near tail end is about 5cm.
Preferably, the four water bags and the water injection pipe of the guide pipe are in one-to-one correspondence, and the water bags are communicated with the water injection pipe through a small hole, and the two water bags are naturally continued.
Preferably, the four water bags of the catheter can be filled with water independently, and the direction of the catheter can be changed by injecting two or three adjacent water bags, so that the direction of the guide wire at the head end is changed, the defect that the angle between a gastrointestinal cavity such as a gastric antrum and a duodenal bulbar is overlarge is overcome, and the guide wire can smoothly enter the duodenal bulbar through the pylorus is facilitated. The water bag has the functions that after the water bag is filled, the water bag can block the local gastrointestinal cavity of the water bag, so that the guide wire is prevented from turning back, and the guide wire can move forwards. After the water bag is filled, the gastrointestinal cavity can be properly expanded, so that the guide wire can smoothly pass through the blocked gastrointestinal cavity, and the nose intestinal canal can be guided to pass through the blocked gastrointestinal cavity.
Preferably, the tail end of the water injection pipe is provided with a one-way valve to prevent water in the water bag from flowing out and keep the water bag in a full state.
Preferably, the cap assembly of the catheter comprises a conical connector and a cap, wherein the conical connector is positioned at the tail end of the catheter, and the cap is used for closing the inlet of the catheter.
Preferably, the guide wire is an ultra-smooth stainless steel guide wire, the head end of the guide wire is soft and elastic, and the guide wire does not damage the gastrointestinal wall after being stretched out of the catheter. After the guide wire reaches the destination, the catheter can be withdrawn and then placed into the nose-intestine.
Compared with the prior art, the utility model has the advantages that:
the four water bags are conical, can be filled with water independently, and can change the direction of the catheter and the guide wire by filling part of the water bags, thereby being beneficial to the guide wire to pass through the gastrointestinal cavity with larger bending angle. The filled water sac can properly prop open the gastrointestinal cavity, and is beneficial for the guide wire to pass through the pylorus or the narrow gastrointestinal cavity. The filled water bag can also prevent the guide wire from turning back, and is beneficial to the forward running of the guide wire catheter. The guide wire is an ultra-smooth guide wire, the head end is soft, and the guide wire extends out of the guide tube, so that the gastrointestinal wall is not damaged, and the nose intestinal tube can be guided to move forwards. The water sac is easy to identify by the ultrasonic, the position of the catheter can be accurately positioned, and the guide wire can be identified by the ultrasonic after the catheter is withdrawn. After the nose intestine is placed, ultrasonic micro-bubble contrast agent can be injected into the nose intestine for ultrasonic radiography, so that the position of the nose intestine is further determined.
Drawings
Fig. 1 is a schematic structural diagram of the present utility model, in which: 1 is a guide wire; 2 is the tail end of the water injection pipe; 3 is a catheter main body; and 4 is a water sac.
Fig. 2 is a schematic view of a long axis section of the catheter body of fig. 1, in which: 1 is a guide wire, 3-1 is a catheter cavity, 3-2 is the outer side wall of the catheter, 3-3 is the inner side wall of the catheter, and 3-4 is a water injection pipe.
Fig. 3 is a schematic structural diagram of the water bladder in fig. 1 in communication with a water injection pipe on a pipe wall through an aperture, wherein: 4-1 is one of the water bags, and 4-2 is the pore.
FIG. 4 is a schematic cross-sectional view of the water bladder of FIG. 1 in communication with a water injection tube through an aperture, wherein: 4-1 is one of the water bags, and 4-2 is the pore.
Fig. 5 is a schematic structural view of a water injection pipe, an outer side wall and one of water bags penetrating between adjacent water bags by tightly fitting a communicating pipe through a hole formed in the water injection pipe, a hole formed in the corresponding position of the outer side wall and a hole formed in the corresponding position of one of the water bags.
Description of the embodiments
The following description of the embodiments of the utility model will be made clearly and fully with reference to the detailed description that is to be taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, are intended to fall within the protection scope of the present utility model based on the embodiments of the present utility model.
As shown in the attached drawing, the ultrasonic guiding naso-intestinal tube placement auxiliary device with adjustable direction comprises a catheter main body 3 and a water sac 4; the device is characterized in that a catheter main body 3 consists of a catheter cavity 3-1, an outer side wall 3-2 of the catheter, an inner side wall 3-3 of the catheter and a water injection pipe 3-4, wherein a guide wire 1 is arranged in the catheter cavity 3-1, the tail part of the guide wire is exposed out of the tail part of the catheter main body 3, the inner side wall 3-3 of the catheter is arranged outside the catheter cavity 3-1, the outer side wall 3-2 of the catheter is arranged outside the inner side wall 3-3 of the catheter, 4 water injection pipes 3-4 are symmetrically distributed between the outer side wall 3-2 of the catheter and the inner side wall 3-3 of the catheter, the pipe wall of the catheter main body is thicker (the outer side wall 3-2 of the catheter and the inner side wall 3-3 of the catheter are arranged), the tail end 2 of each water injection pipe is led out from the upper part of the catheter main body 3, the tail end 2 of each water injection pipe is led out of four water injection pipes which are distributed at intervals, a one-way valve is arranged on the tail end 2 of each water injection pipe which is led out, injectors can be connected with the corresponding water injection pipe in the catheter main body through the one-way valve; the head end of the guide wire 1 is softer and can extend out of the head end of the catheter main body 3, so that the gastrointestinal wall is not damaged; the hardness of the guide wire is medium except the head end, so that the guide wire can play a good role in supporting the catheter main body, and the tail end of the guide wire can extend out of the tail end of the catheter main body 3. Four conical water bags are distributed around the head end of the catheter main body and are arranged around the water injection pipe, each water bag is communicated with the corresponding water injection pipe through the corresponding hole, and the corresponding water bag is expanded after water is injected into the corresponding water bag through the water injection pipe and the corresponding hole; by injecting water into different water bags, the water bags are filled into a cone shape, the bottom of the cone-shaped body pushes the gastrointestinal wall, and the gastrointestinal wall rebounds, so that the cone-shaped bottom of the water bag at the head of the catheter main body moves towards the direction of the unfilled water bag, thereby reducing the angle of bending the gastrointestinal cavity to be close to a straight line, and facilitating the guide wire to pass through the part with larger bending angle of the gastrointestinal cavity, such as the antrum and the duodenal bulb; the water sac is filled, so that the obstructed gastrointestinal wall can be properly spread, and the catheter main body and the guide wire can pass through a narrow gastrointestinal cavity; and the water bladder may be a good marker of ultrasound display catheter position.
Preferably, the catheter body, the water sac and the water injection pipe are integrally formed (fig. 1). Four water injection pipes are symmetrically and alternately distributed on the pipe wall of the conduit (figure 2).
Preferably, the water sac is located at a position 1cm away from the head end of the catheter main body, the four water injection pipes are respectively communicated with the water sac through holes, the water sac is conical in a full filling state, the thickness of the near head end is 0.5cm, the thickness of the near tail end is 3cm, and the length of the near tail end is about 5cm (fig. 3).
Preferably, the four water bags and the water injection pipe of the catheter main body are in one-to-one correspondence, any one of the water bags 4-1 is communicated with the corresponding hole 4-2 of the water injection pipe through the corresponding hole of the corresponding part of the outer side wall 3-2 of the catheter, and the gap or the gap at the junction can be sealed by glue so as to prevent water injection from leaking out from the gap between the water injection pipe and the outer side wall 3-2 of the catheter and the gap between the water bag and the outer side wall 3-2 of the catheter after entering the water injection pipe, so that any one of the water bags 4-1 is communicated with the corresponding water injection pipe, and the two are naturally continued (fig. 4); the utility model can also pass through the hole 4-2 formed in the water injection pipe, the hole formed in the corresponding position of the outer side wall 3-2 of the conduit and the hole formed in the corresponding position of one water bag 4-1 through the close fit of the communicating pipe 5, so that the water injection pipe, the outer side wall 3-2 of the conduit and one water bag 4-1 are communicated adjacently, the outer wall of the hole 4-2 formed in the outer side wall of the communicating pipe 5 and the outer wall of the hole formed in the corresponding position of the outer side wall 3-2 of the conduit and the outer wall of the hole formed in the corresponding position of one water bag 4-1 are close fit or sealed by glue (see figure 5), and the situation that after the water is injected into the water injection pipe, a gap exists between the water injection pipe and the outer side wall 3-2 of the conduit and a gap exists between the water bag and the outer side wall 3-2 of the conduit is avoided, so that any one water bag 4-1 is communicated with the corresponding water injection pipe, and water can be injected into the water bag through the water injection pipe through the injector.
Preferably, the four water bags of the catheter can be filled with water independently, and the direction of the main body of the catheter can be changed by injecting two or three adjacent water bags, so that the direction of the guide wire at the head end is changed, the defect that the angle between a gastrointestinal cavity such as a gastric antrum and a duodenal bulbar portion is overlarge is overcome, and the guide wire can smoothly enter the duodenal bulbar portion through the pylorus is facilitated. The water bag also has the function of preventing the guide wire from turning back after the water bag is filled, and is beneficial to the guide wire to move forwards. After the water bag is filled, the gastrointestinal cavity can be properly expanded, so that the guide wire can be helped to smoothly pass through the blocked gastrointestinal cavity, and then the nose intestinal tube can be guided to pass through the blocked gastrointestinal cavity.
Preferably, the tail end of the water injection pipe is provided with a one-way valve to prevent water in the water bag from flowing out and keep the water bag in a full state.
Preferably, the tail of the catheter body 3 is provided with a cap assembly comprising a tapered connector at the tail end of the catheter body and a cap for closing the catheter inlet from which the guidewire 1 can be inserted into the head end of the catheter body.
Preferably, the guide wire is an ultra-smooth stainless steel guide wire, the head end of the guide wire is soft and elastic, and the guide wire does not damage the gastrointestinal wall after extending out of the catheter body. After the guide wire reaches the destination, the catheter body can be withdrawn and then placed into the nose-intestine.
The application method of the utility model comprises the following steps:
the required instrument materials for the tube placement are prepared, the distance from the xiphoid process to the nose tip to the earlobe is measured, and the depth of the catheter placement is estimated.
The patient takes the semi-lying position or the right side lying position, and the gastrointestinal tract is ultrasonically inspected to judge the positions of the gastric cardia, the pylorus, the duodenum and the jejunum.
Paraffin oil fully lubricates the guide wire, the guide wire is placed in the catheter, and the tail end of the guide wire slightly extends out of the catheter.
And (3) placing the lubricated catheter into the nostril, and monitoring the position of the catheter in real time in the whole process.
When the catheter reaches the antrum and the tip reaches the pylorus, water is injected into the water bags according to the angle relation between the stomach Dou Bu and the duodenal bulbar, and two or three water bags can be filled, so that the antrum and the duodenal bulbar are in linear relation as much as possible, and the guide wire can pass through the pylorus conveniently.
After the guide wire passes through the pylorus, the guide wire is continuously pushed forward to reach the target gastrointestinal tract.
For the person expecting that the catheter can carry out gastrointestinal decompression through the obstructed intestinal section, liquid in the water sac can be extracted, the catheter is pushed forward, water is injected into the water sac after reaching the obstructed intestinal section, the intestinal cavity is properly expanded, the guide wire is further pushed to pass through the obstructed intestinal section, the catheter is withdrawn, the nasal intestinal tube is replaced, after reaching the target intestinal tube, the ultrasonic contrast agent is injected for ultrasonic radiography, after determining the position of the nasal intestinal tube, the guide wire is withdrawn, the tube cap assembly at the head end of the nasal intestinal tube is covered, and the nasal intestinal tube is fixed.
Although the present utility model has been described in terms of the foregoing embodiments, the scope of the utility model is not limited thereto, but is readily accomplished by any person skilled in the art without altering the basic concept of the claims, and is intended to be covered by the scope of the utility model, i.e. the scope of the utility model shall be determined by the claims.
Claims (2)
1. An ultrasonic guiding nose-intestine tube placement auxiliary device with adjustable direction comprises a catheter main body and a water sac; the guide wire is arranged in the catheter cavity and can extend to the head end of the catheter body, the tail part of the guide wire is exposed out of the tail part of the catheter body, the inner side wall of the catheter is arranged outside the catheter cavity, the outer side wall of the catheter is arranged outside the inner side wall of the catheter, 4 water injection pipes are symmetrically distributed between the outer side wall of the catheter and the inner side wall of the catheter, the tail end of each water injection pipe is led out from the upper part of the catheter body, the tail ends of four water injection pipes which are symmetrically distributed are led out at intervals at the upper part of the catheter body, a one-way valve is arranged on the tail end of each water injection pipe which is led out, the four injectors are connected with the injectors through the one-way valves, and the four injectors can inject water into the corresponding water injection pipes in the catheter body through the corresponding one-way valves; four conical water bags are distributed around the head end of the catheter main body and are arranged around the water injection pipe, each water bag is communicated with the corresponding water injection pipe through a corresponding hole, and the corresponding water bag can be expanded after water is injected into the corresponding water bag through the water injection pipe and the corresponding hole.
2. The ultrasonic guided nose-intestine placement aid with adjustable direction according to claim 1, wherein the catheter body, the water injection tube and the water sac are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320996081.XU CN219764243U (en) | 2023-04-27 | 2023-04-27 | Direction-adjustable ultrasonic guiding nasal intestinal canal placement auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320996081.XU CN219764243U (en) | 2023-04-27 | 2023-04-27 | Direction-adjustable ultrasonic guiding nasal intestinal canal placement auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219764243U true CN219764243U (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320996081.XU Active CN219764243U (en) | 2023-04-27 | 2023-04-27 | Direction-adjustable ultrasonic guiding nasal intestinal canal placement auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219764243U (en) |
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2023
- 2023-04-27 CN CN202320996081.XU patent/CN219764243U/en active Active
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