Visual nasal gastrointestinal combined tube

Abstract

The utility model discloses a visible nasal gastrointestinal combined tube, which belongs to medical instruments and solves the problems that the existing jejunum catheter passively depends on gastric peristalsis to pass through a pylorus, the time for passing through the pylorus is uncertain, and the treatment is delayed. The front end of the intestinal tube is embedded into the guide tube cavity through the channel to combine the intestinal tube with the guide tube, separation is also facilitated, and the gastrointestinal combined tube is suitable for being conveyed to the gastral cavity and conveying the intestinal tube into the intestinal tract. Moreover, the visual head is arranged at the top of the front end of the tube wall of the guide tube, and the position and the direction of the intestinal canal are observed through the visual head of the guide tube before passing through the pylorus, so that the intestinal canal can be actively conveyed purposefully and directionally instead of passively depending on gastric peristalsis, the intestinal canal can accurately and quickly pass through the pylorus, the discomfort feeling of a patient is relieved, and the patient experience is improved. The examination and medical treatment efficiency of medical staff on the patient is improved, and the patient is treated in time.

Description

Technical Field

[0001] The utility model belongs to medical equipment, in particular to a visual transnasal gastrointestinal combined tube for infusing liquid into the jejunum, which is suitable for combining an intestinal tube with a guide tube to deliver the liquid to the stomach cavity and to the intestinal tract through the pylorus, and the intestinal tube and the guide tube can be separated as needed, and the position can be observed by the visual head of the guide tube before passing through the pylorus, which is conducive to the accurate and rapid passage of the combined tube through the pylorus. Background Art

[0002] The invention patent specification with the authorization announcement number CN100387314C discloses a liquid-sac jejunal catheter, which is carried by a guide tube and transported into the stomach.

[0003] However, after the jejunal catheter is inserted into the stomach cavity in combination with the guide tube, the jejunal catheter needs to passively rely on gastric peristalsis to pass through the pylorus, and the time it takes for the jejunal catheter to pass through the pylorus is relatively long. When the gastric peristalsis function is low or even stagnant due to disease, the time it takes for the jejunal catheter to pass through the pylorus is even longer. The time it takes for this jejunal catheter to passively rely on gastric peristalsis to pass through the pylorus is uncertain, which will delay treatment. Utility Model Content

[0004] The technical problem to be solved and the technical task proposed by the utility model are to overcome the defect that the existing jejunal catheter passively relies on gastric peristalsis to pass through the pylorus, and to provide a visual transnasal gastrointestinal combination tube, which is intended to observe the position and direction of the intestinal tube through the pylorus by using the visual head of the guide tube, and to promote the intestinal tube to pass through the pylorus accurately and quickly through active intervention.

[0005] In order to achieve the above-mentioned purpose, the utility model of the visual nasogastric combined tube is characterized by comprising:

[0006] The guide tube has a guide tube cavity surrounded by a soft guide tube wall, a front end side wall of the guide tube wall is provided with a channel connecting the guide tube cavity with the outside, and a visual head is provided at the front end top of the guide tube wall, and the visual head is connected to an external cable;

[0007] The intestinal tube has a first lumen surrounded by a soft intestinal tube wall, and a liquid injection hole connecting the first lumen with the outside is opened at the front end of the intestinal tube;

[0008] The front end of the intestinal tube is suitable for being embedded in the lumen of the guide tube through the channel so that the intestinal tube can be combined or separated from the guide tube.

[0009] Based on this, the intestinal tube and the guide tube can be combined together and delivered to the stomach cavity through the nose and to the intestine through the pylorus. The intestinal tube and the guide tube can be separated as needed, and the position and direction of the intestinal tube can be observed with the visual head of the guide tube before passing through the pylorus. This is conducive to actively delivering the intestinal tube in a purposeful and directional manner rather than passively relying on gastric peristalsis to deliver the intestinal tube, allowing the intestinal tube to pass through the pylorus accurately and quickly, thereby reducing the patient's discomfort, improving the efficiency of medical staff in examining and treating patients, and providing timely treatment to patients.

[0010] In order to avoid the local radial dimension being too large when the intestinal tube and the guide tube are combined together, which would hinder the transportation of the combined tube, the channel is provided with an inclined notch. When the intestinal tube and the guide tube are combined together, the radial dimension of the combined part of the intestinal tube and the guide tube is gradually changed through the guidance of the inclined notch, which is conducive to the transportation of the combined tube.

[0011] During specific implementation, the injection through hole is opened at the top of the front end of the intestinal tube and / or the front end side wall of the intestinal tube wall.

[0012] In order to enable the intestinal tube to be guided to move in the intestine, the intestinal tube has a second lumen surrounded by the intestinal tube wall and isolated from the first lumen. An elastic bag is provided at the front end of the intestinal tube. The second lumen is communicated with the elastic bag, and the first lumen is isolated from the elastic bag. The elastic bag is suitable for being embedded in the guide tube lumen through the channel together with the front end of the intestinal tube. Thus, after the intestinal tube is transported to the intestine, liquid or gas can be injected into the elastic bag to expand the elastic bag and become larger, which is similar to a chyme mass. Relying on the peristalsis of the intestine, the intestinal tube moves downward in the intestine. Moreover, the expanded elastic bag can be used to support the inner wall of the intestine to play a role in plugging leaks.

[0013] In one embodiment, the elastic bag is located at the front end top of the intestinal tube wall, and the injection through hole is opened at the front end side wall of the intestinal tube wall. The elastic bag of this structure is located at the front end of the intestinal tube and has the best guiding effect.

[0014] In another embodiment, the elastic bag surrounds the front side wall of the intestinal tube wall, and the injection hole is opened at the top of the front end of the intestinal tube or / and the front side wall of the intestinal tube wall. The elastic bag of this structure can support the intestinal tube and maintain its shape in the intestine.

[0015] Preferably, the intestinal tube has a third lumen surrounded by the intestinal tube wall and isolated from the first lumen and the second lumen, and the front end of the intestinal tube is provided with an auxiliary through hole connecting the third lumen with the outside. The auxiliary through hole and the third lumen establish a communication channel between the intestinal tube and the outside, which can be used to balance the intestinal pressure.

[0016] In order to reliably combine the intestinal tube with the guide tube, the passage includes a longitudinal incision extending forward from the notch. Accordingly, when the intestinal tube is combined with the guide tube, the elastic bag can be placed inside the longitudinal incision to ensure that the guide tube can surround the elastic bag and the front end of the intestinal tube. When the elastic bag expands in the intestine, it can open the longitudinal incision, which is conducive to the separation of the elastic bag and the guide tube.

[0017] Furthermore, the passage includes an auxiliary through hole located at the front end of the longitudinal incision and connecting the lumen of the guide tube with the outside. When the elastic sac expands in the intestine and expands to open the longitudinal incision and separate from the guide tube, the contact between the expanded elastic sac and the wall of the guide tube can be reduced, which is conducive to separation from the guide tube.

[0018] In order to quickly transport the intestinal tube, the intestinal tube includes a guide wire that can penetrate into the first lumen and be withdrawn from the first lumen. Accordingly, the intestinal tube can be pushed forward by the rigidity of the guide wire.

[0019] The utility model has a channel connecting the guide tube lumen and the outside on the front end side wall of the guide tube wall, and the front end of the intestinal tube is embedded in the guide tube lumen through the channel to combine the intestinal tube with the guide tube, and is also convenient for separation, which is suitable for conveying the gastrointestinal combination tube to the stomach cavity and conveying the intestinal tube to the intestine. In addition, a visual head is provided at the top of the front end of the guide tube wall, and the position and direction of the intestinal tube can be observed by the visual head of the guide tube before passing through the pylorus, which is conducive to actively conveying the intestinal tube in a purposeful and directional manner rather than passively relying on gastric peristalsis to convey the intestinal tube, so that the intestinal tube can pass through the pylorus accurately and quickly, thereby reducing the patient's discomfort, improving the efficiency of medical staff in examining and treating patients, and providing timely treatment to patients.

[0020] The intestinal tube of the utility model can be embodied in various structural forms such as single-lumen tube, double-lumen tube, with elastic sac, without elastic sac, etc. for clinical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the intestinal tube of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the cross section of the intestine shown;

[0023] Figure 3 This is a cross-sectional schematic diagram of another type of intestinal tube;

[0024] Figure 4 for Figure 1 Schematic diagram of the intestinal tube after the elastic sac is inflated;

[0025] Figure 5 A schematic diagram of another intestinal tube after the elastic sac is inflated;

[0026] Figure 6This is a structural schematic diagram of a guide tube of the utility model;

[0027] Figure 7 This is a structural schematic diagram of another guide tube of the utility model;

[0028] Figure 8 The intestinal tube of the utility model Figure 7 A schematic diagram of the guide tubes shown being combined together;

[0029] Fig. 9 for Figure 8 Left view of

[0030] Fig.10 for Fig. 9 A schematic diagram showing the elastic balloon being expanded and detached from the guide tube;

[0031] Description of the numbers in the figure:

[0032] 100 guide tube: 101 guide tube wall, 102 guide tube lumen, 103 notch, 104 longitudinal incision, 105 auxiliary through hole, 106 visible head;

[0033] 200 intestinal tube: 201 intestinal tube wall, 202 first tube cavity, 203 second tube cavity, 204 elastic bag, 205 injection hole, 206 first injection port, 207 second injection port, 208 third tube cavity;

[0034] 300 guide wire. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions. For example, a method or product comprising a series of technical features is not necessarily limited to those technical features clearly listed, but may also include other technical features that are not clearly listed and can be included in the method or product.

[0037] In the description of the present utility model, it is necessary to understand that the technical features defined by the terms "first", "second" and the like with sequential concepts are only for the purpose of clearly describing the defined technical features so that the defined technical features can be clearly distinguished from other technical features, but do not represent such naming in actual implementation, and therefore cannot be understood as a limitation of the present utility model.

[0038] The present invention is described in detail below in conjunction with specific embodiments and drawings.

[0039] like Figure 8-10 As shown, the visual transnasal gastrointestinal combination tube includes a guide tube 100 , an intestinal tube 200 , and a guide wire 300 .

[0040] The guide tube 100 is as follows Figure 6 or Figure 7 As shown, it has a guide tube lumen 102 surrounded by a soft guide tube wall 101, and a channel connecting the guide tube lumen and the outside is opened on the front side wall of the guide tube wall. Figure 6 In the embodiment, the channel is only an inclined notch 103. Figure 7 In the figure, the channel also includes a longitudinal incision 104 extending forward from the notch 103 and an auxiliary through hole 105 located at the front end of the longitudinal incision and connecting the guide tube cavity with the outside. The guide tube is made of rubber like the nasal guide tube. In the illustrated structure, a visual head 106 is provided at the top of the front end of the guide tube wall. The visual head 106 mainly includes a cold light source and a camera. The cold light source is used for lighting. The camera is used to capture images. The visual head 106 is connected to an external cable not shown in the figure, and the external cable can be buried in the guide tube wall or led out from the guide tube cavity. An interface is provided at the outer end of the external cable, and the interface is used to connect to an external device so that the image captured by the camera can be displayed through the external device, and the position and direction of the guide tube head can be observed in real time.

[0041] Figure 1-5 Several structural forms of the intestinal tube 200 are shown, but the invention is not limited to these structural forms.

[0042] Figure 1-2 , Figure 4The intestinal tube 200 shown has a first tube cavity 202 and a second tube cavity 203 surrounded by a soft intestinal tube wall 201 and isolated from each other. An elastic capsule 204 is sealed at the top of the front end of the intestinal tube wall 201. The front end of the first tube cavity 202 is isolated from the elastic capsule 204, and the second tube cavity 203 is connected to the elastic capsule 204. At least one injection through hole 205 is opened on the side wall of the front part of the intestinal tube wall 201 to connect the first tube cavity 202 with the outside. The outer diameter of the intestinal tube wall 201 is smaller than the outer diameter of the guide tube 100, and the front end of the intestinal tube wall 201 and the elastic capsule 204 are suitable for being embedded in the guide tube cavity 102 through the channel. The rear end of the intestinal tube 200 is provided with a first injection port 206 of the first tube cavity 202 and a second injection port 207 of the second tube cavity 203. Liquid or gas can be injected into the second tube cavity through the second injection port 207 to cause the elastic capsule 204 to expand. In order to keep the elastic bladder in an expanded state, a valve is provided in the second injection port 207. After the elastic bladder expands, the valve is closed. The valve can be opened by a syringe to discharge the liquid or gas in the first lumen and the elastic bladder. The nutrient solution or liquid medicine required by the patient can be injected into the first lumen 202 through the first injection port 206.

[0043] like Figure 3 The figure shows another structure of an intestinal tube 200, wherein the intestinal tube 200 has a third lumen 208 surrounded by an intestinal tube wall 201 and isolated from the first lumen 202 and the second lumen 203. An auxiliary through hole connecting the third lumen 208 with the outside is opened at the front end of the intestinal tube 200. The auxiliary through hole and the third lumen establish a communication channel between the intestine and the outside, which can be used to balance the intestinal pressure. Figure 3 The intestine shown can also be Figure 1 , Figure 4 As shown, an elastic bag is arranged at the top of the front end, or as shown Figure 5 As shown, the elastic bag is surrounded by the front end side wall of the intestinal tube wall.

[0044] like Figure 5 As shown, the elastic bag 204 surrounds the front side wall of the intestinal tube wall 201, and the injection hole 205 is opened at the top of the front end of the intestinal tube 200 or / and the front side wall of the intestinal tube wall 201. The elastic bag of this structure can support the intestinal tube and maintain its shape in the intestine.

[0045] In other embodiments, the intestinal tube may be surrounded by a soft intestinal tube wall to form only a first lumen, and the injection hole is opened at the top of the front end of the intestinal tube and / or the front end side wall of the intestinal tube wall.

[0046] The guide wire 300 is a thin steel wire rope with certain rigidity and bendability. When the intestinal tube and the guide tube are transported to the stomach and intestine, in order to timely adjust the posture and position of the intestinal tube and increase the smoothness of transportation, the guide wire can be inserted into the first lumen to increase the controllability of the intestinal tube.

[0047] like Figure 8-9 As shown, the front end of the intestinal tube 200 is placed together with the elastic bag 204 in the inclined notch 203 of the guide tube 100, and a part of the elastic bag is placed in the lumen of the guide tube as much as possible to constrain the intestinal tube and the guide tube together, so that the intestinal tube 200 and the guide tube 100 can be combined together and transported to the gastric cavity through the nasal cavity.

[0048] In the gastric cavity, the position and direction of the front end of the guide tube can be observed in real time through the external device and the visual head 106 at the front end of the guide tube, which is conducive to delivering the combined tube to the vicinity of the pylorus. After the combined tube is delivered to the right place, the intestinal tube is separated from the guide tube, which shortens the path and time of the intestinal tube passing through the pylorus, is conducive to the accurate and rapid passage of the intestinal tube through the pylorus, alleviates the patient's discomfort, and improves the efficiency of medical staff in examining and treating patients. By operating the guide wire, the convenience of delivering the combined tube to the gastric cavity and increasing the convenience of the intestinal tube passing through the pylorus can be increased. Accordingly, the disadvantages of not being able to reach the ideal position when the combined tube is delivered only by the experience of the clinician and passively relying on gastric peristalsis to pass through the pylorus are avoided.

[0049] After the combined tube is delivered to the vicinity of the pylorus, liquid or gas can be injected into the second lumen 203 through the second injection port 207 with a syringe to cause the elastic sac 204 to expand and become larger, causing the intestinal tube 200 to be separated from the guide tube 100. After the intestinal tube 200 is separated from the guide tube 100, the visible head 106 at the front end of the guide tube can actively intervene in the rapid passage of the intestinal tube through the pylorus by relying on gastric peristalsis and the guidance of the guide wire. The intestinal tube moves in the intestine by the peristalsis of the intestine, and its movement can be assisted by injecting liquid into the elastic sac.

[0050] When delivering the combined tube into the stomach cavity and passing the intestinal tube through the pylorus alone, the guide wire 300 can be inserted into the first lumen 202 according to actual conditions to increase controllability so as to quickly and smoothly deliver the combined tube or the intestinal tube to the desired position.

[0051] Figure 8-9 Shows Figure 7 The guide tube 100 shown is combined with the intestinal tube 200. Figure 6 The guide tube 100 shown is used to guide the intestinal tube, and the elastic bag 204 is embedded in the inner side of the longitudinal incision 104. If an intestinal tube without an elastic bag is combined with the guide tube, the front end of the intestinal tube is placed in the lumen of the guide tube.

[0052] In order to clearly express the guide tube and the intestinal tube, Figure 8-10 In the figure, the solid line represents the outline of the guide tube, and the dotted line represents the outline of the intestinal tube.

Claims

1. Visual nasogastric combined tube, characterized by include: The guide tube (100) comprises a guide tube lumen (102) surrounded by a soft guide tube wall (101); a front end side wall of the guide tube wall (101) is provided with a channel connecting the guide tube lumen and the outside; a front end top of the guide tube wall (101) is provided with a visual head (106); the visual head (106) is connected to an external cable; An intestinal tube (200) having a first tube cavity (202) surrounded by a soft intestinal tube wall (201), and a liquid injection through hole (205) connecting the first tube cavity (202) and the outside is opened at the front end of the intestinal tube (200); The front end of the intestinal tube (200) is suitable for being embedded in the guide tube lumen (102) through the channel so that the intestinal tube and the guide tube can be combined or separated.

2. The visual transnasal gastrointestinal combined tube according to claim 1, characterized in that: The channel is an inclined notch (103).

3. The visual transnasal gastrointestinal combined tube according to claim 1, characterized in that: The liquid injection through hole (205) is opened at the top of the front end of the intestinal tube (200) and / or the front end side wall of the intestinal tube wall.

4. The visual nasogastric combined tube according to any one of claims 1 to 3, characterized in that: The intestinal tube (200) has a second tube cavity (203) surrounded by an intestinal tube wall (201) and isolated from the first tube cavity (202); an elastic bag (204) is provided at the front end of the intestinal tube (200); the second tube cavity (203) is communicated with the elastic bag (204), and the first tube cavity (202) is isolated from the elastic bag (204); the elastic bag (204) is suitable for being embedded in the guide tube cavity (102) together with the front end of the intestinal tube (200) through a channel.

5. The visual transnasal gastrointestinal combined tube according to claim 4, characterized in that: The elastic bag (204) is located at the front end top of the intestinal tube wall (201), and the injection through hole (205) is opened on the front end side wall of the intestinal tube wall (201).

6. The visual transnasal gastrointestinal combined tube according to claim 4, characterized in that: The elastic bag (204) surrounds the front end side wall of the intestinal tube wall (201), and the injection hole (205) is opened at the top of the front end of the intestinal tube (200) and / or the front end side wall of the intestinal tube wall (201).

7. The visual transnasal gastrointestinal combined tube according to claim 4, characterized in that: The intestinal tube (200) has a third tube cavity (208) surrounded by an intestinal tube wall (201) and isolated from the first tube cavity (202) and the second tube cavity (203). An auxiliary through hole connecting the third tube cavity with the outside is opened at the front end of the intestinal tube (200).

8. The visual transnasal gastrointestinal combined tube according to claim 2, characterized in that: The channel includes a longitudinal cutout (104) extending forwardly from the notch (103).

9. The visual transnasal gastrointestinal combined tube according to claim 8, characterized in that: The channel comprises an auxiliary through hole (105) located at the front end of the longitudinal incision (104) and connecting the guide tube lumen (102) with the outside.

10. The visual transnasal gastrointestinal combined tube according to claim 1, characterized in that: The intestinal tube (200) includes a guide wire (300) that can be inserted into the first lumen (202) and withdrawn from the first lumen.

Images