CN119950321A - A visual jejunal nutrition tube - Google Patents
A visual jejunal nutrition tube Download PDFInfo
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- CN119950321A CN119950321A CN202510080882.5A CN202510080882A CN119950321A CN 119950321 A CN119950321 A CN 119950321A CN 202510080882 A CN202510080882 A CN 202510080882A CN 119950321 A CN119950321 A CN 119950321A
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Abstract
本发明公开了一种可视空肠营养管，包括空肠营养管主体和图像传感器模块，其中，空肠营养管主体内部设有从近端延伸至远端的空肠营养管管腔，空肠营养管管腔在近端设有第一开口，空肠营养管主体的远端设有多个与空肠营养管管腔内部连通的侧孔；图像传感器模块设置在空肠营养管远端，图像传感器模块设有摄像头，该摄像头用于撷取空肠营养管远端的影像，图像传感器模块还设有至少一个朝向摄像头前端喷射清洗剂的第一喷嘴。采用本发明的可视空肠营养管，借助图像传感器模块，在空肠营养管插入的过程中实时、清晰地观察前端的影像，顺利将空肠营养管插管到位。
The present invention discloses a visual jejunal nutrition tube, comprising a jejunal nutrition tube body and an image sensor module, wherein a jejunal nutrition tube lumen extending from the proximal end to the distal end is provided inside the jejunal nutrition tube body, the jejunal nutrition tube lumen is provided with a first opening at the proximal end, and the distal end of the jejunal nutrition tube body is provided with a plurality of side holes connected with the jejunal nutrition tube lumen; the image sensor module is arranged at the distal end of the jejunal nutrition tube, the image sensor module is provided with a camera, the camera is used to capture the image of the distal end of the jejunal nutrition tube, and the image sensor module is also provided with at least one first nozzle for spraying a cleaning agent toward the front end of the camera. The visual jejunal nutrition tube of the present invention can be used to observe the image of the front end in real time and clearly during the insertion of the jejunal nutrition tube with the help of the image sensor module, so that the jejunal nutrition tube can be smoothly inserted into place.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a jejunum nutrition tube with a visual function.
Background
Enteral nutrition technology is an important basic technology in critical patient treatment and is an important therapeutic measure for improving survival and function of patients. Transnasal catheterization to the stomach (nasogastric) or small intestine (nasogastric) is the most common route for enteral nutrition, but in many patients, especially critically ill patients, there is a potential for increased gastric retention, gastroesophageal reflux, poor enteral nutrition tolerance, thereby affecting the patient's enteral nutritional effects and safety, which in turn affects the patient's overall long-term survival outcome, and quality of life. Nasal and intestinal nutrition (or post-pylorus feeding) is a simple and effective nutrition way for improving feeding tolerance of patients, reducing aspiration caused by gastroesophageal reflux and pneumonia risk and guaranteeing enteral nutrition effectiveness, and is also recommended by related diagnosis and treatment guidelines at home and abroad in the professional field. For example Zhang Li, wang Xinying, reading the national guidelines for clinical application of extra-intestinal nutrition in Chinese adult patients (2023 edition) [ J ]. J.J. J.tumor metabolism and nutrition electronic journal 2023,10 (06): 718-723, and further, the ESPEN Utility guidelines part revision of Singer P, blaser AR, berger MM et al, clinical nutrition ,Clin Nutr.2023;42(9):1671-1689[Singer P,Blaser AR,Berger MM,et al.ESPEN practical and partially revised guideline:Clinical nutrition in the intensive care unit.Clin Nutr.2023;42(9):1671-1689]; in intensive care units and application of Liu Y, wang Y, zhang B, wang J, sun L, xao Q gastric tube feeding and post-pylorus feeding (duodenal feeding) in severe patients, systemic review of the occurrence of pulmonary aspiration and nutrition-related outcomes and analysis of .Eur J Clin Nutr.2021;75(9):1337-1348[Liu Y,Wang Y,Zhang B,Wang J,Sun L,Xiao Q.Gastric-tube versus post-pyloric feeding in critical patients:a systematic review and meta-analysis of pulmonary aspiration-and nutrition-related outcomes.Eur J Clin Nutr.2021;75(9):1337-1348]. nasogastric tube (or jejunal tube), Gastrointestinal tube) is applied to all clinical departments of nearly all large and medium hospitals in China, but the placement of the nasal gastrointestinal tube is difficult at present, and most of nasal gastrointestinal tubes can be achieved by blind insertion technology, but medical staff can learn for a long time, patients need posture change, and the difficult patients still need to achieve by means of endoscope and X-ray fluoroscopy. For example Dan Haiyan, liu Aihua, ma Xiao, et al, "Retention and maintenance of adult nasal intestinal tube" group standard interpretation [ J ]. Chinese journal of critical care, 2023,4 (11): 1011-10155; for example SLINGERLAND-Boot R, bouw-Ruiter M, VAN MANEN C, arbous S, van Zanten A. Video assisted placement ,Clin Nutr.2021;40(8):5000-5007[Slingerland-Boot R,Bouw-Ruiter M,van Manen C,Arbous S,van Zanten A.Video-assisted placement of enteral feeding tubes using the Integrated Real-Time Imaging System(IRIS)-technology in critically ill patients.Clin Nutr.2021;40(8):5000-5007]. of enteral feeding tube for critical patients using integrated real-time imaging system (IRIS) is shown in FIG. 1, because nasal intestinal tube may face digestive tract buckling during placement, the pylorus is S-shaped, and the pylorus is difficult to pass through in blind insertion and X-ray perspective operation, so that the investment of manpower, material resources and financial resources of doctors and patients is greatly increased, the timeliness and effectiveness of enteral nutrition treatment of clinically critical patients are hindered, and the medical risk of the patients in the catheterization process is increased. Early retention of the naso-intestinal feeding tube using visual techniques has proven to be a safe and effective way.
Some present visual nasogastric tubes (also commonly called as stomach tubes and intestinal tubes) with light source cameras are arranged at the front ends of the catheters, for example, the patent number CN202121376225.9 of the utility model provides a visual stomach tube, which comprises a stomach tube body, wherein one end of the stomach tube body is provided with a visual camera, an auxiliary fixing device is detachably arranged on the stomach tube body, one end of the stomach tube body is fixedly connected with a mounting seat, the visual camera is arranged on the mounting seat, a transparent protective cover is arranged on the outer side of the visual camera, a plurality of through holes are formed in the side wall, close to the mounting seat, of the stomach tube body in an annular equidistant penetrating manner, a plurality of micro illuminating lamps are arranged on the mounting seat, and the micro illuminating lamps are positioned in the transparent protective cover. COVIDIEN provides an IRIS visualization system, but the system has only a visualization probe. For example SLINGERLAND-Boot R, bouw-Ruiter M, VAN MANEN C, arbous S, van Zanten A. Use of an integrated real-time imaging system (IRIS) to carry out video assisted placement ,Clin Nutr.2021;40(8):5000-5007[Slingerland-Boot R,Bouw-Ruiter M,van Manen C,Arbous S,van Zanten A.Video-assisted placement of enteral feeding tubes using the Integrated Real-Time Imaging System(IRIS)-technology in critically ill patients.Clin Nutr.2021;40(8):5000-5007], of enteral feeding tube and for example KRPASITI T, shepherd SJ. use direct visual positioning to carry out post-pyloric feeding tube (duodenal feeding tube) placement in mechanically ventilated patients, a single central case series study ,Intensive Crit Care Nurs.2022;70:103222[Krpasiti T,Shepherd SJ.Bedside post-pyloric tube placement using direct visualisation in mechanically ventilated patients:A single centre case series.Intensive Crit Care Nurs.2022;70:103222], or more involves a visual gastric tube which, although it can realize visual placement, does not control the bending angle, can not smoothly and accurately insert the pylorus, duodenum of nasogastric tube through gastric cavity to jejunum or desired site, and such gastric tube is mounted at the front end of a camera, can easily adhere sputum, blood, body fluid to the protective cover to view the field of the camera, and in the case of incapable of observing the front end of gastric tube, especially if reaching site of S-shaped bending results in an uncertainty orientation, affecting normal catheterization in place, resulting in a longer whole catheterization, or requiring repeated catheterization after catheterization.
Disclosure of Invention
In view of the technical problems set forth in the background art, the present invention provides a visual jejunal feeding tube, so as to at least partially solve at least one of the technical problems.
In order to solve the technical problems, the invention provides the following technical scheme:
The invention relates to a visual jejunum nutrition tube, which comprises a jejunum nutrition tube main body and an image sensor module, wherein a jejunum nutrition tube cavity extending from a proximal end to a distal end is arranged in the jejunum nutrition tube main body, a first opening is arranged in the jejunum nutrition tube cavity at the proximal end, a plurality of side holes communicated with the interior of the jejunum nutrition tube cavity are arranged at the distal end of the jejunum nutrition tube main body, the image sensor module is arranged at the distal end of the jejunum nutrition tube, the image sensor module is provided with a camera for capturing images of the distal end of the jejunum nutrition tube, and at least one first nozzle for spraying cleaning agent towards the front end of the camera is also arranged in the image sensor module;
the front end face of the image sensor module is provided with a first suction port, a suction channel communicated with the first suction port is arranged in the image sensor module, the suction channel is communicated with a suction lumen arranged in the wall of the jejunum nutrition tube main body, and the first suction port is positioned on the opposite side of the first nozzle relative to the camera.
In a further preferred embodiment, the image sensor module is further provided with at least one second nozzle for spraying a cleaning agent towards the distal end of the jejunal feeding tube.
In a further preferred embodiment, the first nozzle and the second nozzle are integrally formed and protrude from the front end of the camera, and the first nozzle and the second nozzle are communicated with a first cleaning agent pipe cavity inside the image sensor module.
In a further preferred embodiment, the jejunal feeding tube body is provided with a second cleaning agent lumen extending from the proximal end to the distal end, the second cleaning agent lumen being in communication with the first cleaning agent lumen at the distal end.
Further preferred embodiments further comprise at least one third nozzle disposed within the jejunal nutrition lumen, the third nozzle in communication with the second cleaning agent lumen, the third nozzle for spraying cleaning agent toward the side hole and/or toward the distal end of the jejunal nutrition lumen.
In a further preferred embodiment, the image sensor module further comprises at least one light source arranged at the distal end.
In a further preferred embodiment, the jejunal feeding tube body is further provided with a cable lumen extending from the proximal end to the distal end, the cable is arranged in the cable lumen in a penetrating manner, and the cable is connected with the camera and/or the light source at the distal end and is used for transmitting the image captured by the camera to the display device at the proximal end and/or providing electric energy for the camera and/or the light source.
In a further preferred embodiment, the side wall of the jejunum nutrition tube body is provided with at least one second suction port, and the second suction port is communicated with a suction lumen in the tube wall of the jejunum nutrition tube body.
In a further preferred embodiment, the image sensor module has a length of 3-8mm.
In a further preferred embodiment, the front end face of the image sensor module forms a projection which surrounds the side facing away from the first nozzle and has an opening facing the camera, the first nozzle being aligned with the direction of the opening.
In a further preferred embodiment, the connection between the front end surface of the protrusion and the side surface of the protrusion facing the camera adopts a rounded transition, and/or the connection between the side surface of the protrusion facing the camera and the front end surface of the image sensor module adopts a rounded transition, and/or the connection between the front end surface of the image sensor module far away from the protrusion and the side surface adopts a rounded transition.
In a further preferred embodiment, the protrusions protrude 1-4mm from the front face of the image sensor module.
In a further preferred embodiment, the outer surface of the jejunal feeding tube body is provided with an inflatable cuff disposed at the trailing end of the side hole.
In a further preferred embodiment, a reinforcing steel wire is arranged in the jejunal nutrition tube main body, and the reinforcing steel wire is spiral and embedded in the inner wall of the jejunal nutrition tube lumen or arranged in the wall of the jejunal nutrition tube main body.
Further preferred embodiments further comprise an angle adjustment device insertable into the lumen of the jejunal feeding tube for adjusting the bending angle of the distal end of the jejunal feeding tube.
Further preferred embodiments, the angle adjusting device comprises a snake bone structure, a first pull wire, a second pull wire and an operating member, wherein the distal end of the snake bone structure is insertable into the distal end of the jejunum nutrient canal lumen, the distal ends of the first pull wire and the second pull wire are connected to the distal end of the snake bone structure, and the proximal end is connected to the operating member.
Further preferred embodiment, the operating part comprises a holding part, a rotating shaft, a rotating piece and a stirring element, wherein the rotating shaft is arranged on the holding part in a rotatable mode, the rotating piece is arranged at one end of the rotating shaft, which is positioned in the holding part, the stirring element is arranged at one end of the rotating shaft, which extends out of the holding part, and the first traction guide wire and the second traction guide wire are fixed at opposite positions along the circumference of the rotating piece.
In a further preferred embodiment, the snake bone structure is bent at an angle of 90-150 degrees.
The visual jejunum nutrition tube can acquire clear images at a far end in real time by means of the camera in the image sensor module and the first nozzle, the second nozzle and/or the first suction port, particularly, the camera is arranged at the front end of the jejunum nutrition tube, no shielding exists before a camera lens, the acquired images are clearer, the visual angle of the camera is wider, sputum, gastric contents and the like are adhered to the camera lens even in the process of jejunum tube insertion and after jejunum tube placement or in front of the camera, the camera lens can be washed and sucked in time by the first nozzle, the second nozzle and/or the first suction port, and the cleaning of the camera lens can be kept at any time, so that a doctor with rich experience or a doctor without experience can insert the jejunum nutrition tube in place very smoothly. In addition, by means of the angle adjusting device, the bending angle of the jejunum tube can be adjusted under the visual condition, the jejunum tube can smoothly pass through the bent intestinal canal, and even if mucus, gastric contents and the like are adhered to the front end of the jejunum tube, the cleaning agent can be timely sprayed through the first nozzle and the second nozzle to always keep the camera to capture clear images. The visual jejunum nutrition tube can greatly shorten the intubation time and reduce the intubation pain and medical risks suffered by patients.
Drawings
FIG. 1 is a schematic illustration of a jejunal feeding tube inserted into a patient's intestinal tract;
FIG. 2 is a perspective view of one embodiment of a visual jejunal feeding tube protected in accordance with the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of FIG. 3 taken along the camera and nozzle positions;
FIG. 5 is a front view of an embodiment of a visual jejunal feeding tube protected in accordance with the present invention;
FIG. 6 is a bottom view of one embodiment of the visual jejunal feeding tube protected in accordance with the present invention;
FIG. 7 is a cross-sectional view taken at B-B of FIG. 6;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
FIG. 9 is a perspective view of another embodiment of the visual jejunal feeding tube protected by the present invention;
FIG. 10 is a front view of another embodiment of the visual jejunal feeding tube protected by the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 9 at A;
FIG. 12 is a cross-sectional view of FIG. 11 taken along the plane of the first nozzle, camera and first suction port;
FIG. 13 is a cross-sectional view taken at D-D of FIG. 10;
FIG. 14 is a cross-sectional view taken at E-E of FIG. 10;
FIG. 15 is an enlarged view of a portion of FIG. 10 at F;
FIG. 16 is a cross-sectional view taken at G-G of FIG. 15;
fig. 17 is a partial perspective view of yet another embodiment of a visual jejunal feeding tube protected according to the present invention.
In the figure, 10-jejunal nutrient canal, 11-jejunal nutrient canal body, 110-cable lumen, 111-jejunal nutrient canal lumen, 112-first opening, 113-side hole, 114-second cleaning agent lumen, 115-third nozzle, 116-suction lumen, 117-second suction port, 118-inflation lumen, 119-reinforced wire, 12-image sensor module, 121-camera, 122-first nozzle, 123-second nozzle, 124-first cleaning agent lumen, 125-light source, 126-first suction port, 1261-suction channel, 13-angle adjustment device, 131-snake bone structure, 1311-sleeve, 132-first pull wire, 133-second pull wire, 134-operating member, 1-grip, 1342-spindle, 1343-rotary piece, 1344-toggle element, 135-rotary control device, 1351-toggle protuberance, 14-inflatable cuff.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely configured to illustrate the invention and are not configured to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element.
As shown in fig. 2-17, various views and partial views of the presently claimed visual jejunal feeding tube are shown. Wherein fig. 2 is a perspective view of one embodiment of the visual jejunal feeding tube of the present invention wherein the visual jejunal feeding tube 10 comprises a jejunal feeding tube body 11 and an image sensor module 12. For ease of description, referring to fig. 2, 5 and 9, one end of the image sensor module 12 is defined as a distal end or a front end, an end operated by a doctor is defined as a proximal end or a rear end, and the relative distal/front end and proximal/rear end refer to a relative positional relationship, and are not limited to a certain fixed location or position.
Preferably, the jejunum feeding tube main body 11 is made of TPU or PVC material, and has a certain flexibility, so that the jejunum feeding tube 10 is convenient to bend, while the image sensor module 12 is made of hard material, and cannot bend, and the longer image sensor module 12 can affect the insertion of the jejunum feeding tube 10 due to the large bending angle in the intestinal tract, for example, the image sensor module 12 cannot bend at the large bending angle during the intubation process, and scratches the inner wall of the intestinal tract or squeeze the bending part of the intestinal tract, and in severe cases, scratches the inner wall of the intestinal tract, so that the length of the image sensor module 12 is designed to be shorter, preferably, the length of the image sensor module 12 is 3mm-8mm, and more preferably, the length is 5mm.
Referring to fig. 7 and 8, a jejunum nutrition tube cavity 111 extending from a proximal end to a distal end is arranged in the jejunum nutrition tube main body 11, a first opening 112 is arranged in the jejunum nutrition tube cavity 111 at the proximal end, a plurality of side holes 113 communicated with the interior of the jejunum nutrition tube cavity 111 are arranged at the distal end of the jejunum nutrition tube main body 11, the side holes 113 are used for feeding food in the jejunum nutrition tube cavity 111 into an intestinal tract, an image sensor module 12 is arranged at the distal end of the jejunum nutrition tube 10, and preferably, the rear end of the image sensor module 12 is sleeved at the distal end of the jejunum nutrition tube main body 11 and is adhered and fixed through glue.
Further, referring to fig. 3 and 4, the image sensor module 12 is provided with a camera 121, and further preferably, the camera 121 is a high-definition micro-camera for capturing an image of the distal end of the jejunum nutrition tube 10, and the image sensor module 12 is further provided with at least one first nozzle 122 for spraying a cleaning agent toward the lens at the front end of the camera 121. Preferably, the cleansing agent is physiological saline to avoid rejection by the patient. The first nozzle 122 sprays the cleaning agent towards the camera 121 to wash away mucus, sputum, body fluid and the like adhered to the lens of the camera 121, so that the camera 121 can always capture clear images of the front end.
Preferably, the direction in which the first nozzle 122 sprays the cleaning agent forms an included angle of 0-30 degrees with the lens surface of the camera 121, and further preferably forms an included angle of 5-15 degrees, which is favorable for cleaning the adhesion objects on the lens surface of the camera 121.
Further preferably, as shown in fig. 3,4, 11 and 12, the image sensor module 12 is further provided with at least one second nozzle 123 for spraying a cleaning agent toward the distal end of the jejunal nutrition tube 10, and when the camera 121 collects images of mucus, sputum or the like collected at the front end, the mucus, sputum or the like is flushed out in advance through the second nozzle 123 in order to avoid adhesion to the lens of the camera 121 or influence on the insertion of the jejunal nutrition tube. Preferably, the direction in which the second nozzle 123 sprays the cleaning agent makes an angle of 0 to 10 degrees with the axial direction of the camera 121, and more preferably, an angle of 3 to 8 degrees. As an alternative embodiment, the second nozzles 123 include a plurality of second nozzles 123, so that the sprayed cleaning agent spreads in an umbrella shape, which is beneficial to wash away the adhesive at the front end of the image sensor module in advance and effectively, so as to avoid adhering to the camera 121 and viewing the image.
It is further preferable that the first nozzle 122 and the second nozzle 123 protrude from the front end of the camera 121, and it is preferable that the first nozzle 122 and the second nozzle 123 are formed in the image sensor module 12 by integral injection molding, and it is further preferable that the first nozzle 122 and the second nozzle 123 communicate internally and communicate with the first cleaning agent lumen 124 inside the image sensor module 12.
Further preferably, the first nozzle 122, the second nozzle 123 and the first cleaning agent lumen 124 are integrally injection molded, and the image sensor module 12 is provided with a cleaning agent lumen channel 1241, and the first cleaning agent lumen 124 is inserted into the cleaning agent lumen channel 1241 and is tightly fitted.
Further preferably, as shown in fig. 3, 4, 11 and 12, a protrusion 1243 is formed protruding from the front end surface of the image sensor module 12, the protrusion 1243 being located on one side of the front end surface of the image sensor module 12 and having an opening 1242 toward the camera 121, and the cleaning agent lumen passage 1241 extends from the inside of the image sensor module 12 toward the front end through the protrusion 1243 and communicates with the opening 1242 at the side surface of the protrusion 1243.
It is further preferred that the plane of the lens of the camera 121 is flush with or lower than the front end face of the image sensor module 12, and the protrusion 1243 protrudes 1-4mm, more preferably 2-3mm, most preferably 3mm from the front end face of the image sensor module 12.
When an object is closely attached to the camera lens, the object distance is too small to obtain a clear image, so in the above embodiment, the protrusion 1243 protrudes from the plane where the camera lens 121 is located, so that it can be ensured that the camera lens 121 always keeps a certain distance from the observed object, especially when passing through the curved intestinal tract, the protrusion 1243 preferentially contacts the inner wall of the intestinal tract, so as to ensure that the camera lens 121 keeps a certain distance from the inner wall of the intestinal tract, and still obtain a clear image.
It is further preferred that the first nozzle 122 and the second nozzle 123 are disposed in the cleaning agent lumen channel 1241 located at the protrusion 1243, and the first nozzle 122 is aligned with the direction of the opening 1242, that is, the protrusion 1243 surrounds the side facing away from the first nozzle 122, and the opening 1242 is formed at the side of the first nozzle 122, so that the cleaning agent sprayed from the first nozzle 122 can reach the lens surface of the camera 121. It can be seen that since the first nozzle 122 and the second nozzle 123 are located at the foremost end of the jejunal feeding tube 10, the protrusion 1243 can function to protect the first nozzle 122 and the second nozzle 123 from being deformed by being squeezed during the intubation process.
Further preferably, as shown in fig. 3 and 11, the connection between the front end surface of the protrusion 1243 and the side surface of the protrusion 1243 facing the camera 121 adopts an outward protruding rounded corner, the side surface of the protrusion 1243 facing away from the camera 121 is consistent with the circular arc surface of the image sensor module 12, and the connection between the bottom of the protrusion 1243 facing the camera 121 and the front end surface of the image sensor module 12 adopts an inward recessed rounded corner.
It is further preferred that the image sensor module 12 also adopts an outwardly protruding rounded transition at the junction of the front face and the side surface on the side remote from the projection 1243.
Because the image sensor module 12 and the protrusion 1243 are both located at the forefront end of the jejunal nutrition tube, the rounded transition design described above can effectively avoid injuring the intestinal tract or stomach of the patient during the intubation process.
It is further preferred that the second nozzle 123 is flush with the front end face of the projection 1243 or protrudes slightly beyond the front end face of the projection 1243.
It is further preferred that the jejunal feeding tube body 11 is provided with a second cleaning agent lumen 114 extending from a proximal end to a distal end, the second cleaning agent lumen 114 being in communication with the first cleaning agent lumen 124 at the distal end, as shown in fig. 4 and 12. The particular first cleaning agent lumen 124 and second cleaning agent lumen 114 may communicate directly in butt joint or through separate conduits.
Further preferably, as shown in fig. 8, at least one third nozzle 115 is also provided within the jejunal nutrition lumen 111, the third nozzle being in communication with the second cleaning agent lumen 114, the third nozzle 115 being operable to spray cleaning agent toward the side aperture 113 and/or toward the distal end of the jejunal nutrition lumen 111. It is further preferred that at least one third nozzle 115 is provided for each side hole 113, and that the third nozzle 115 is provided on the inner wall of the jejunal nutrient lumen 111 opposite to the side hole 113.
Further preferably, the image sensor module 12 further comprises at least one light source 125 disposed at the distal end. The preferred light source 125 is an LED cold light source.
It is further preferred that the jejunal feeding tube body 11 is further provided with a cable lumen 110 extending from the proximal end to the distal end, the cable is penetrated in the cable lumen 110, and the cable is connected with the camera 121 and/or the light source 125 at the distal end, for transmitting the image captured by the camera 121 to a display device (not shown in the figure) at the proximal end in real time, so that a doctor can observe the condition of the front end of the camera 121 in real time, or provide electric power for the camera 121 and the light source 125.
It is further preferred, as shown in fig. 5 to 7, to further comprise an angle adjusting means 13, which angle adjusting means 13 is insertable into the jejunal feeding tube lumen 111 for adjusting the bending angle of the distal end of the jejunal feeding tube 10.
Further preferably, the angle adjusting device 13 includes a snake bone structure 131, a first traction wire 132, a second traction wire 133, and an operation member 134, wherein a distal end of the snake bone structure 131 is insertable into a distal end of the jejunum nutrition tube lumen 111, distal ends of the first traction wire 132 and the second traction wire 133 are connected to the distal end of the snake bone structure 131, and a proximal end is connected to the operation member 134.
Further preferably, the operating member 134 includes a grip portion 1341, a rotation shaft 1342, a rotation piece 1343 and a toggle member 1344, and the grip portion 1341 is preferably shaped to be held by a doctor's hand, such as a handle. The rotating shaft 1342 is rotatably disposed on the holding portion 1341, the rotating piece 1343 is disposed at an end of the rotating shaft 1342 located in the holding portion 1341, the stirring element 1344 is disposed at an end of the rotating shaft 1342 extending out of the holding portion 1341, and the first traction guide wire 132 and the second traction guide wire 133 are fixed at circumferentially opposite positions along the rotating piece 1343.
It is further preferred that the snake bone structure 131 of the angle adjusting device 13 be bendable at a large angle, preferably 90-150 degrees, so that the enteral feeding tube 10 can bypass the intestine at a large bending angle during insertion.
Under the condition that the snake bone structure 131 of the angle adjusting device 13 is inserted into the jejunum nutrition tube cavity 111 and reaches the distal end, the first traction guide wire 132 or the second traction guide wire 133 can be pulled through the reciprocating rotation of the stirring element 1344, the snake bone structure 131 is further controlled to bend, the front end of the jejunum nutrition tube is driven to bend in two directions, the bending angle is adjustable, the bending condition in the intestinal tract can be observed according to a camera, the jejunum nutrition tube 10 is controlled to bend in which direction, the bending angle is also controllable, the jejunum nutrition tube 10 can be rapidly intubated in place, the intubating operation can be successfully completed even a doctor without much experience, and the misoperation of the operation is reduced.
It is further preferred that an inflatable cuff 14 is provided at the rear end of the side hole 113 along the outer surface of the jejunal feeding tube body 11 and an inflation lumen 118 is provided in the inner wall of the jejunal feeding tube body, the inflation lumen 118 being connected at a proximal end to a gas source for inflating or deflating the inflatable cuff 14 so that the inflatable cuff 14 is switched between an inflated state and a deflated state, the inflatable cuff 14 being shown in the figures.
After the jejunum nutrient canal 10 is successfully placed in the intestinal canal of a patient, the jejunum nutrient canal 10 is relatively soft, and along with the peristaltic motion of the intestinal canal, the position of the jejunum nutrient canal 10 relative to the intestinal canal can be changed, so that the normal feeding is affected. After successful placement of jejunal feeding tube 10, inflatable cuff 14 is filled with gas through inflation lumen 18, inflatable cuff 14 is in press fit with the inner wall of the intestine so that jejunal feeding tube 10 is positioned relative to the intestine and displacement is avoided.
Because jejunum nutrition tube 10 is in order to be put into in complicated intestinal structure, jejunum nutrition tube main part 11 adopts flexible material to make, but flexible material also can bring other problems of putting the pipe, for example jejunum nutrition tube is easy to buckle, tie a knot, especially in the comparatively open position of stomach, the condition of piling up appears in jejunum nutrition tube easily, can lead to jejunum nutrition tube 10 to appear great bending angle like this, can cause the inside each cavity of jejunum nutrition tube main part 11 to block up or reduce the cavity internal diameter easily, influence normal feeding and gas passage, the normal supply or the take out of liquid passageway, perhaps put the unsmooth problem of pipe.
Further preferably, as shown in fig. 17, in order to increase the rigidity of the jejunal feeding tube 10, a reinforcing steel wire 119 is provided in the jejunal feeding tube body 11. Preferably, the reinforcement wire 119 is helical and embedded in the inner wall of the jejunal feeding tube lumen 111 or in the wall of the jejunal feeding tube body 11. The helical reinforcement wire 119 ensures a certain rigidity of the jejunal feeding tube 10 and still allows a normal bending under the control of the angle adjusting means 13 according to the intestinal structure. The reinforcing steel wire 119 is provided in this embodiment so that the air-sausage nutrition tube has a certain rigidity to solve the above-mentioned problems.
It is further preferred that, as shown in fig. 11 and 12, the front end surface of the image sensor module 12 is further provided with a first suction port 126, and a suction channel 1261 communicating with the first suction port 126 is provided inside the image sensor module 12, a suction lumen 116 extending from the proximal end to the distal end is provided in the wall of the jejunum feeding tube main body 11, the suction lumen 116 communicates with the suction channel 1261 in the image sensor module 12, the suction lumen 116 is connected at the proximal end with a suction device (not shown in the drawings) for sucking out or blocking the contents (including mucus, sputum, body fluid, gastric residues, etc.) in the intestinal tract or stomach adhered or blocked at the front end of the image sensor module 12, in combination with the flushing of the lens of the camera 121 by the first nozzle 122, the first suction opening 126 can suck the flushed content at the same time, so that the definition of the lens of the camera 121 is further ensured, especially, after the jejunum nutrition tube 10 enters the stomach, the stomach content is blocked at the front end of the lens of the camera 121 and is wide in the stomach, and the pylorus is narrow, and the doctor hardly recognizes the position of the pylorus in the intubation process, therefore, the gastric content at the front end of the jejunum nutrition tube 10 can be timely cleared by the arrangement of the first suction opening 126, the position of the pylorus is facilitated to be recognized, and the jejunum nutrition tube 10 can smoothly enter the pylorus, so that the success of tube placement is ensured, and the tube placement time can be greatly shortened.
Further preferably, the first suction opening 126 is located at an opposite side of the first nozzle 122 with respect to the camera 121, so that the cleaning agent sprayed from the first nozzle 122 directly enters the suction opening 126 to suck the cleaning agent together with the adhesion object after the adhesion object on the lens surface of the camera 121 is removed, thereby avoiding secondary adhesion to the camera 121 or adhesion in the intestinal tract, and simultaneously avoiding blocking the feeding side hole 113.
Further preferably, at least one second suction port 117 is provided on the side wall of the jejunum nutrition tube main body 11 near the connection position of the image sensor module 12 and the jejunum nutrition tube main body 11, the second suction port 117 is communicated with the suction lumen 116 in the wall of the jejunum nutrition tube main body 11, the contents in the inner wall of the intestinal tract or the stomach can be further sucked through the suction of the suction device, the side hole 113 for feeding is prevented from being blocked, and meanwhile, the adhesion or the contents which are not sucked cleanly by the first suction port 126 can be further sucked cleanly.
It is further preferable to provide a plurality of second suction ports 117 along the longitudinal axis of the jejunal feeding tube body 11 to increase the sucking effect.
Further preferably, as shown in fig. 9 and 10, the second suction port 117 is located at the front end of the first side hole 113 in the axial direction and is not in the same straight line with the first side hole 113, so that it is ensured that the jejunum nutrition tube lumen 111 communicated with the first side hole 113 and the suction lumen 116 communicated with the second suction port 117 are kept in straight line extension, the lumen is prevented from crossing or the extension direction is changed, and the processing and forming of the whole jejunum nutrition tube 11 main body are facilitated.
It is further preferred that the snake bone structure 131 be disposed within a sleeve 1311, the sleeve 1311 extending from a proximal end to a distal end, and disposed proximally within the grip 1341, the first pull wire 132 and the second pull wire 133 being disposed within the sleeve 1311, as shown in fig. 14-16.
Further preferably, in order to increase the adjustment mode and flexibility of the distal end of the jejunum nutrition tube 10, the angle adjusting device 13 is further provided with a rotation control device 135, the rotation control device 135 is disposed at the front end of the holding portion 1341 and can rotate left and right relative to the holding portion 1341, the rotation control device 135 is tightly matched with the proximal sleeve 1311, so that the left and right rotation operation of the rotation control device 135 synchronously drives the sleeve 1311 to rotate left and right, further the distal snake bone structure 131 can be controlled to do left and right rotation, thus the distal end of the jejunum nutrition tube 10 can be bent or rotated by a certain angle, the flexibility of controlling the distal end of the jejunum nutrition tube 10 is improved, even if the more complex intestinal structures such as the gastric wall folds can pass smoothly and be placed, and the field of view of the image collected by the camera 121 is further enlarged.
Further preferably, for the convenience of the doctor, a toggle protrusion 1351 is provided on the outer surface of the rotation control means 135.
The present invention is not limited to the above embodiments, and the above embodiments may be recombined to form new embodiments without collision, which all fall within the scope of the present invention. The invention is not limited to the specific structures and processes described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. The method processes of the present invention are not limited to the specific steps described and shown, but various changes, modifications and additions, or the order between steps may be made by those skilled in the art after appreciating the spirit of the present invention.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. The present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
In the foregoing, only the specific embodiments of the present invention are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and they should be included in the scope of the present invention.
Claims (18)
1. The visual jejunum nutrition tube is characterized by comprising a jejunum nutrition tube main body and an image sensor module, wherein a jejunum nutrition tube cavity extending from a proximal end to a distal end is arranged in the jejunum nutrition tube main body, a first opening is arranged in the jejunum nutrition tube cavity at the proximal end, a plurality of side holes communicated with the interior of the jejunum nutrition tube cavity are arranged at the distal end of the jejunum nutrition tube main body, the image sensor module is arranged at the distal end of the jejunum nutrition tube, the image sensor module is provided with a camera for capturing images of the distal end of the jejunum nutrition tube, and the image sensor module is further provided with at least one first nozzle for spraying cleaning agent towards the front end of the camera;
the front end face of the image sensor module is provided with a first suction port, a suction channel communicated with the first suction port is arranged in the image sensor module, the suction channel is communicated with a suction lumen arranged in the wall of the jejunum nutrition tube main body, and the first suction port is positioned on the opposite side of the first nozzle relative to the camera.
2. The visual jejunal feeding tube of claim 1 wherein said image sensor module is further provided with at least one second nozzle for spraying a cleaning agent toward the distal end of the jejunal feeding tube.
3. The visual jejunal feeding tube of claim 2 wherein said first and second nozzles are integrally formed and protrude from the front end of the camera head, the first and second nozzles communicating with a first cleaning agent lumen within the image sensor module.
4. A visual jejunal feeding tube according to claim 3 wherein said jejunal feeding tube body is provided with a second cleaning agent lumen extending from a proximal end to a distal end, said second cleaning agent lumen being in communication with said first cleaning agent lumen at the distal end.
5. The visual jejunal feeding tube of claim 4 further comprising at least one third nozzle disposed within the jejunal feeding tube lumen, the third nozzle in communication with the second cleaning agent lumen, the third nozzle for spraying cleaning agent toward the side hole and/or toward the distal end of the jejunal feeding tube lumen.
6. The visual jejunal feeding tube of claim 1, wherein said image sensor module further comprises at least one light source disposed at a distal end.
7. The visual jejunal feeding tube of claim 6 wherein the jejunal feeding tube body is further provided with a cable lumen extending from a proximal end to a distal end, the cable being threaded into the cable lumen, the cable being connected to a camera and/or light source at the distal end for transmitting images captured by the camera to a display device at the proximal end and/or for providing electrical power to the camera and/or light source.
8. The visual jejunal feeding tube of claims 1-7 wherein the side wall of the jejunal feeding tube body is provided with at least one second suction port in communication with a suction lumen in the wall of the jejunal feeding tube body.
9. The visual jejunal feeding tube of any of claims 1-7, wherein said image sensor module is 3-8mm in length.
10. The visual jejunal feeding tube of any of claims 1-7 wherein the front face of the image sensor module defines a protrusion surrounding a side facing away from the first nozzle and having an opening facing the camera, the first nozzle being aligned with the direction of the opening.
11. Visual jejunal nutrition tube according to claim 10, characterized in that the junction of the front end surface of the bulge and the side surface of the bulge facing the camera is rounded, and/or the junction of the side surface of the bulge facing the camera and the front end surface of the image sensor module is rounded, and/or the junction of the front end surface of the image sensor module facing away from the bulge and the side surface is rounded.
12. The visual jejunal feeding tube of claim 10 wherein said protrusions protrude 1-4mm from the front face of the image sensor module.
13. The visual jejunal feeding tube of any of claims 1-7 wherein an inflatable cuff is disposed on an outer surface of said jejunal feeding tube body and is disposed at a rear end of said side hole.
14. The visual jejunal feeding tube of any of claims 1-7 wherein reinforcing wires are disposed within the jejunal feeding tube body, wherein the reinforcing wires are helical and embedded within the inner wall of the jejunal feeding tube lumen or disposed within the jejunal feeding tube body wall.
15. The visual jejunal feeding tube of claim 5 further comprising an angle adjustment device insertable into the lumen of the jejunal feeding tube for adjusting the bending angle of the distal end of the jejunal feeding tube.
16. The visual jejunal feeding tube of claim 15 wherein said angular adjustment means comprises a snake bone structure, a first pull wire, a second pull wire and an operating member, wherein the distal end of the snake bone structure is insertable into the distal end of the jejunal feeding tube lumen, the distal ends of the first pull wire and the second pull wire being connected to the distal end of the snake bone structure, and the proximal end being connected to the operating member.
17. The visual jejunal feeding tube of claim 16, wherein the operating member comprises a grip, a shaft rotatably disposed on the grip, a rotary blade disposed at an end of the shaft within the grip, and a toggle member disposed at an end of the shaft extending beyond the grip, the first pull wire and the second pull wire being secured at circumferentially opposed positions along the rotary blade.
18. The visual jejunal feeding tube of claim 16 wherein said snake bone structure is bent at an angle of 90-150 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510080882.5A CN119950321A (en) | 2025-01-17 | 2025-01-17 | A visual jejunal nutrition tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510080882.5A CN119950321A (en) | 2025-01-17 | 2025-01-17 | A visual jejunal nutrition tube |
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| CN119950321A true CN119950321A (en) | 2025-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510080882.5A Pending CN119950321A (en) | 2025-01-17 | 2025-01-17 | A visual jejunal nutrition tube |
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