CN215607776U - Nasal jejunum tube scope - Google Patents

Abstract

The utility model provides a nasojejunoscope, relates to the technical field of medical instruments, and can guide the implantation of a nasojejunoscope in a visual state so as to effectively improve the implantation effect. A nasojejunoscopy comprising: the utility model provides a novel intestinal canal, including intestinal canal body and wear to locate this internal seal wire of intestinal canal, the seal wire penetrates and can wear out and can relatively slide in the intestinal canal body by the near-end of intestinal canal body by the distal end of intestinal canal body, the intestinal canal body is divided into interconnect's operation portion in proper order by the near-end to the distal end, insertion part and tip, be provided with in the operation portion and control the structure, a sliding position for controlling the seal wire, still be provided with the camera lens of being connected with the guide wire in the operation portion, it controls the position removal of camera lens through the guide wire to control the structure, wherein, still be provided with the mounting at the tip, the mounting is used for fixing or releasing the restraint to guide wire and/or seal wire under the control of controlling the structure.

Description

Nasal jejunum tube scope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a nasojejunoscope.

Background

For critically ill patients in medicine, particularly the digestive system, nutritional support is a significant component of the treatment process. At present, the nutrition support mode mainly comprises enteral nutrition and parenteral nutrition. All current international nutritional guidelines recommend early enteral nutrition for critically ill patients, which helps stimulate intestinal motility, prevent intestinal flora translocation, and avoid enterogenic infections.

Nasogastric tubes are currently the most commonly used enteral feeding modality, but nasojejunal tubes should be the first choice for patients at risk of regurgitation and pancreatitis patients.

At present, methods for placing the nasojejunal tube comprise a blind insertion method, an ultrasonic guidance method, an endoscope guidance method, an intraoperative tube placement method and the like. Blind-insertion method and supersound guide method are not high because its operation requirement, dependence to other auxiliary assembly is not strong, consequently it is comparatively general to use in prior art, but these two kinds of modes are put into all to have the shortcoming that the precision is not enough, put into the in-process and lead to patient's discomfort easily, lead to putting into position deviation and mistake even, it has better accuracy nature to adopt scope guide jejunum pipe to put into, but conventional scope operation is comparatively complicated, installation and cooperation operation between scope and the jejunum pipe also are difficult to master, it needs to ask internal medicine digestion consultation of medical science to diagnose to put into the operation through guide jejunum pipe under the scope, both efficiency is influenced, also can increase patient's treatment cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nasojejunoscope which can guide the implantation of a nasojejunum tube in a visual state and effectively improve the implantation effect.

The embodiment of the utility model is realized by the following steps:

the embodiment of the utility model provides a nasal jejunum endoscope, which comprises: the utility model provides a novel intestinal canal, including intestinal canal body and wear to locate this internal seal wire of intestinal canal, the seal wire penetrates and can wear out and can relatively slide in the intestinal canal body by the near-end of intestinal canal body by the distal end of intestinal canal body, the intestinal canal body is divided into interconnect's operation portion in proper order by the near-end to the distal end, insertion part and tip, be provided with in the operation portion and control the structure, a sliding position for controlling the seal wire, still be provided with the camera lens of being connected with the guide wire in the operation portion, it controls the position removal of camera lens through the guide wire to control the structure, wherein, still be provided with the mounting at the tip, the mounting is used for fixing or releasing the restraint to guide wire and/or seal wire under the control of controlling the structure.

Optionally, the end portion is arranged in a curve along the extending direction of the intestinal canal body.

Alternatively, the curvature of the end portion is provided as a circular arc curvature.

Optionally, the fixing member includes a buckle which is buckled with each other to form a ring shape, the buckle has two opposite clamping arms, the two opposite clamping arms accumulate elastic potential energy which is far away from each other in a buckled state, the control structure is connected with at least one clamping arm, the clamping arms are pulled by the control structure, the two clamping arms are separated from the buckled state, and the two clamping arms are bounced away from each other in a direction of being far away from each other under the action of the elastic potential energy.

Optionally, in the fastened state, an inner diameter of an annular shape of the fastener is smaller than a maximum width of the lens.

Optionally, the insertion part and the end part of the intestinal canal body are made of flexible materials.

Optionally, an expansion structure is further disposed within the intestinal tube body, the expansion structure being driven to expand the inner diameter of the insertion portion.

Optionally, the operation unit further includes an observation mirror connected to the guide wire, and the real-time image captured by the lens is visible through the observation mirror.

Optionally, a display connected with the lens in communication is further connected through the operation part and used for receiving and displaying image information shot by the lens.

The embodiment of the utility model has the beneficial effects that:

the embodiment of the utility model provides a nasal jejunum endoscope, which comprises: the utility model provides a novel intestinal canal, including intestinal canal body and wear to locate this internal seal wire of intestinal canal, the seal wire penetrates and can wear out and can relatively slide in the intestinal canal body by the near-end of intestinal canal body by the distal end of intestinal canal body, the intestinal canal body is divided into interconnect's operation portion in proper order by the near-end to the distal end, insertion part and tip, be provided with in the operation portion and control the structure, a sliding position for controlling the seal wire, still be provided with the camera lens of being connected with the guide wire in the operation portion, it controls the position removal of camera lens through the guide wire to control the structure, wherein, still be provided with the mounting at the tip, the mounting is used for fixing or releasing the restraint to guide wire and/or seal wire under the control of controlling the structure. The nose jejunum tube is placed into a patient body through the nose jejunum tube endoscope, the guide wire and the lens connected by the guide wire enter the patient body through the intestine tube body by the operation part and are further sent into a preset position in the intestine, and a real-time in-vivo picture is shot by the lens at the far end, so that an operation doctor can continuously send the picture in a visual state, the injury to internal organs, tissues and the like is effectively avoided, when the guide wire and the lens connected by the guide wire reach the preset position in the intestine, the restraint on the guide wire is released by the control structure at the near end, and then the guide wire and the guide wire are acted by the control structure, so that the lens and the guide wire are withdrawn towards the near end through the intestine tube body until the lens and the near end of the intestine tube body are completely withdrawn, the intestine tube body is left at the preset position in the intestinal tract, and the visual operation state can be realized by the mode, and compact structure is ingenious easy to operate, and the doctor can accurately and effectively realize the operation on the premise of not needing long-time professional training, guarantees the security, improves the accuracy of putting into the position and improves the work efficiency of putting into the operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a nasojejunoscope according to an embodiment of the present invention;

FIG. 2 is a second schematic structural view of a nasojejunoscope according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating a closed state of a fixing member in a nasojejunoscope according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating an opened state of a fixing member in a nasojejunoscope according to an embodiment of the present invention.

Icon: 10-the intestine body; 11-an operating part; 12-insert. 13-end; 20-a guide wire; 30-a manipulation mechanism; 40-a lens; 50-a fixing member; 51-card slot.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the related art, for the insertion of the nasojejunal tube of the patient, common methods include a blind insertion method, an ultrasonic guidance method, an endoscope guidance method, an intraoperative tube insertion method and the like. The blind insertion method is superior to the method that the specific position of the nasojejunal tube in the body of a patient cannot be seen, and the body tissue condition nearby can only be completely dependent on the experience and hand feeling of a doctor, even the doctor with rich experience hardly guarantees that the position deviation can not occur in the feeding process, thereby other body tissues are accidentally injured, the ultrasonic guiding method can adopt ultrasonic equipment as auxiliary guiding equipment for the nasojejunal tube to be placed, the process that the nasojejunal tube is placed is explored in vitro through the ultrasonic equipment to provide certain guiding help, but the ultrasonic method cannot visually see the clear image in the body after all, and the refined effective guiding for the nasojejunal tube to be placed cannot be met.

Fig. 1 is a schematic structural diagram of a nasojejunoscope according to an embodiment of the present invention, and referring to fig. 1, the embodiment of the present invention provides a nasojejunoscope, including: the utility model provides a medical device, including intestines tube body 10 and the seal wire 20 of locating in intestines tube body 10, seal wire 20 passes through by the near end of intestines tube body 10 and passes out by the distal end of intestines tube body 10 and can slide in intestines tube body 10 relatively, intestines tube body 10 divides into operation portion 11, insertion portion 12 and tip 13 that interconnect in proper order from the near end to the distal end, be provided with in operation portion 11 and control structure 30, be used for controlling the sliding position of seal wire 20, still be provided with the camera lens 40 that is connected with the guide wire in operation portion 11, control structure 30 controls the position of camera lens 40 through the guide wire and move, wherein, still be provided with mounting 50 at tip 13, mounting 50 is used for fixing or releasing the restraint to guide wire and/or seal wire 20 under the control of control structure 30.

The nasojejunal tube is a nasogastric tube, which enters the body through the nasal cavity and is delivered to the duodenum or jejunum for direct nutrient infusion for patients who need to enter the duodenum or jejunum directly through nasogastric. Generally, the nasal jejunum tube is made of a material which is flexible and does not stimulate the human body, and before the nasal jejunum tube is used for infusing the enteral nutrient solution, the tube needs to be flushed by sterile normal saline, and the nasal jejunum tube can be taken out and replaced or cleaned regularly as required.

Because it is flexible material by itself, need to have the guide wire 20 to guide in internal transport after getting into by the nasal cavity, the guide wire 20 passes in by intestines tube body 10, wear to establish in intestines tube body 10 by the near-end to the distal end, and guide wire 20 is smooth and have the material preparation that certain hardness can play the guide effect usually, in order to further improve the smooth and easy degree that nose jejunum pipe sent into under the guide effect of guide wire 20, reduce resistance and patient's discomfort, can also inject physiological saline into intestines tube body 10 by the near-end in the in-process of slowly sending into, on this basis, can also pour into the material that paraffin oil etc. can play the lubrication action into, can make the process of sending into have more smooth and easy effect.

As shown in fig. 1, the manipulation structure provided in the manipulation unit 11 at the proximal end of the intestinal canal body 10 is used to control the feeding and withdrawing of the guide wire 20, and the specific internal structure and manipulation manner of the manipulation structure in the embodiment of the present invention are not particularly limited as long as the guide wire 20 extending into the intestinal canal body 10 into the patient and the guide wire connected to the lens 40 can be stored, and the manipulation structure may have a grasping structure, may be directly stored in an opening, and the like.

Since the nasojejunal tube is used for the infusion of enteral nutrition, it is also possible to provide a detachable interface connection between the operation portion 11 and the insertion portion 12 so that the guide wire 20 and the pull wire are retrieved by the operation of the operation portion 11 through the position where the operation portion 11 is connected to the insertion portion 12.

In addition, as shown in fig. 1, the intestinal canal further comprises a lens 40 connected through a guide line, the lens 40 and the guide line connected to the lens 40 are also sent into the intestinal canal body 10 through the control structure, and the guide line is used for drawing the direction of the lens 40 and connecting signals with the lens 40, so as to transmit the pictures shot by the lens 40 in time. In general, the distal end of the guide wire 20 and the lens 40 connected to the guide wire are located at a relatively close position, the guide wire 20 guides the intestinal canal body 10 to be conveyed into the body, and the lens 40 captures a picture of the inside of the body where the guide wire 20 is located in real time, so that an operator can further perform feeding and direction selection adjustment on the guide wire 20 according to the actual position condition of the inside of the body displayed by the lens 40.

It should be noted that, since the guide wire 20 has a function of guiding the smooth feeding of the intestinal canal main body 10, it is generally required to use a special material, and the guide wire connected to the lens 40 also has a function of transmitting a signal, the guide wire 20 and the guide wire are generally separately provided, but this is not strictly limited in the embodiment of the present invention, and for example, if a linear structure capable of smoothly guiding in the body and transmitting a signal is selected, the guide wire 20 and the guide wire may be combined into one wire.

After the intestinal canal body 10 is successfully placed into the preset position in the body under the guide of the guide wire 20 and the help of the picture shot by the lens 40, the guide wire 20 and the lens 40 connected through the guide wire need to be withdrawn from the body, and the intestinal canal body 10 is left, so that the nutrient solution can be conveniently conveyed to the intestine from the nasojejunal canal. The end 13 of the intestine body 10 of the nasojejunoscope according to the embodiment of the present application is further provided with a fixing member 50, the fixing member 50 limits the range of the guide wire connected to the lens 40 in the process of guiding the feeding of the intestine body 10 by the guide wire 20 and the lens 40 connected by the guide wire, for example, the fixing member 50 is in a clamping structure, the opening and closing of the fixing member 50 can be controlled by the control mechanism 30 at the operation part 11, when the fixing member 50 is in the closed state, the guide wire clamped in the fixing member 50 can slide back and forth relative to the intestine body 10 but cannot be separated from the clamping, when the lens 40 needs to be withdrawn, the fixing member 50 is controlled to be changed from the closed state to the open state by the control mechanism 30 of the operation part 11, then the guide wire is withdrawn to the proximal end, and the lens 40 can be withdrawn.

The embodiment of the utility model provides a nasal jejunum endoscope, which comprises: the utility model provides a medical device, including intestines tube body 10 and the seal wire 20 of locating in intestines tube body 10, seal wire 20 passes through by the near-end of intestines tube body 10 and passes out by the distal end of intestines tube body 10 and can slide in intestines tube body 10 relatively, intestines tube body 10 divides into the operation portion 11, insertion portion 12 and the tip 13 that interconnect in proper order from the near-end to the distal end, be provided with in operation portion 11 and control the structure, be used for controlling the sliding position of seal wire 20, still be provided with the camera lens 40 that is connected with the seal wire in operation portion 11, it controls the position removal of camera lens 40 through the seal wire to control the structure, wherein, still be provided with mounting 50 at tip 13, mounting 50 is used for fixing or releasing the restraint to guide wire and/or seal wire 20 under the control of controlling the structure. The nasojejunal tube is placed into a patient body through a nasojejunoscope, the guide wire 20 and the lens 40 connected with the guide wire enter the patient body through the enteron tube body 10 by the operation part 11 and are further sent to a preset position in the intestine, and the operation doctor can continuously send operation in a visual state due to the fact that the lens 40 shoots a real-time in-vivo picture at the far end, so that internal organs, tissues and the like are effectively prevented from being damaged, when the guide wire 20 and the lens 40 connected with the guide wire reach the preset position in the intestine, the restraint on the guide wire is released by the fixing piece 50 controlled by the control structure at the near end, then the guide wire 20 and the guide wire are acted by the control structure, so that the lens 40 and the guide wire 20 are together withdrawn towards the near end through the enteron tube body 10 until the lens 40 and the guide wire 20 are completely withdrawn from the near end of the enteron body 10, and the enteron body 10 is left at the preset position in the intestinal tract in the body, this kind of mode is owing to can realize visual operating condition, and compact structure is ingenious easily to be operated moreover, and the doctor can guarantee the security, improve the accuracy of putting into the position and improve the work efficiency of putting into the operation at the accurate effectual realization operation under the prerequisite that does not need long-time professional training.

Alternatively, as shown in fig. 2, in another practicable aspect of the jejunal tube according to the embodiment of the present application, the end portion 13 of the tube body 10 is disposed in a curved manner along the extending direction of the tube body 10. Alternatively, the curvature of the end portion 13 is provided as a circular arc curvature.

The intestines tube body 10 is carried in the human body under the guide of seal wire 20, cooperates the organizational structure characteristics in the human body, sets up the tip 13 of intestines tube body 10 into crooked shape to be convenient for carry in vivo, moreover, when the direction that intestines tube body 10 carried needs to be adjusted, through rotating intestines tube body 10, make the tip 13 of crooked shape towards this direction, thereby can more be favorable to smooth and easy sending into. The bending of the end portion 13 is set to be the bending of the arc form, so that an invalid bending structure of an irregular bending structure at the middle section position is avoided, wherein in the embodiment of the application, the radian of the arc form of the end portion 13 is not specifically limited, and a person skilled in the art can specifically set and select the arc form according to needs.

Alternatively, as shown in fig. 3 and 4, fig. 3 and 4 are both partial enlarged structural views of the fixing member 50 in the intestine body 10, wherein fig. 3 shows the fixing member 50 in a closed state, and fig. 4 shows the fixing member 50 in an open state.

The fixing member 50 includes a buckle which is buckled with each other to form a ring shape, the buckle has two opposite clamping arms 51, the two opposite clamping arms 51 accumulate elastic potential energy which is far away from each other in a buckling state, the control structure is connected with at least one clamping arm 51, the clamping arms 51 are pulled by the control structure, the two clamping arms 51 are separated from the buckling state, and the two clamping arms are bounced away from each other in a direction of being far away from each other under the action of the elastic potential energy.

It should be noted that, in the embodiment of the present invention, the two clip arms 51 shown in fig. 4 are only an exemplary schematic diagram of the structure of the clip arms 51, and in fact, the structural form, the size, and the like of the two clip arms 51 in the embodiment of the present invention may be configured according to the structure, the inner diameter, and the like of the intestine body 10, so that the guide wire 20 and the guide wire can be smoothly passed into the intestine body 10 in the state that the clip arms 51 are opened, and the guide wire 20 and the guide wire can be constrained to avoid being pulled out in the state that the clip arms 51 are closed.

The two opposite clip arms 51 can be directly made of elastic materials, the clip of the fixing member 50 is in an open state when the two clip arms 51 are in a natural state, as shown in fig. 4, at this time, a guide wire can be smoothly put into the fixing member 50 through the open openings of the two clip arms 51, and the two clip arms 51 are manually pinched and buckled, as shown in fig. 3, the embodiment of the present application provides a form of clipping between the clip arms 51, the end portions 13 of the two clip arms 51 are provided with toothed mutual occlusion structures, and the two clip arms 51 can be buckled through the occlusion structures by manually overcoming elastic force. When the buckling structure needs to be opened, only one of the clamping arms 51 needs to be pulled to overcome the biting force of the meshing structure, and the elastic potential energy of the two clamping arms 51 is released, so that the fixing piece 50 can be opened.

For example, in the intestine main body 10 which needs to be repeatedly used after washing, the fixing member 50 may be provided outside the end portion 13 of the intestine main body 10 in order to make the operation of the fixing member 50 more intuitive and convenient, and thus, in the state where the fixing member 50 is opened, it is convenient to manually insert the guide wire into the hook and manually engage the two engaging arms 51.

It should be noted that, in the embodiment of the present application, the transmission connection form between the manipulation mechanism 30 and the at least one clip arm 51 on the fixing member 50 is not particularly limited, as long as the accurate transmission of the direction of the force can be formed between the two.

Optionally, in the buckled state, the inner diameter of the ring of the buckle is smaller than the maximum width of the lens 40.

In this way, since the annular inner diameter of the clip is smaller than the maximum width of the lens 40, as long as the fixing member 50 is not opened, since the size of the lens 40 is larger than the annular inner diameter of the clip, the lens 40 cannot be separated from the inside of the fixing member 50 in a state where the fixing member 50 is fastened, thereby ensuring the stability of the fastened state of the fixing member 50.

Optionally, the insertion portion 12 and the end portion 13 of the intestine body 10 are made of flexible materials.

As for the intestine body 10, at least the insertion portion 12 and the end portion 13 to be inserted into the human body are made of flexible materials, and are as skin-friendly and non-irritating as possible, and of course, as for the portion of the operation portion 11, since it is not generally directly inserted into the human body, the operation portion 11 may be made of a rigid connection structure instead of a flexible structure, so that the internal space of the operation portion 11 is stabilized, and of course, if necessary, a flexible structure may be provided, or at least the casing of the operation portion 11 may be replaced with a flexible structure.

In addition, the nasojejunoscope according to the embodiment of the present application may fix the guide wire 20 by the fixing member 50, or fix both the guide wire 20 and the guide wire.

Optionally, an expansion structure is further disposed in the intestine body 10, and the expansion structure is driven to expand the inner diameter of the insertion portion 12.

In the process of withdrawing the guide wire 20 and the guide wire with the lens 40, the problem that the intestinal canal body 10 is withdrawn along with the withdrawal is very easy to occur, or even if the intestinal canal body 10 is not completely withdrawn along with the guide wire 20, as long as the intestinal canal body 10 is withdrawn along with the guide wire 20 and the lens 40 carried with the guide wire together to the outside, the nasojejunal canal can be away from the duodenum due to the end part 13, and the intestinal canal body 10 which is partially withdrawn after being separated is not clear any more due to the target position, so that the implantation failure of the nasojejunal canal is also caused.

On the basis, in the embodiment of the present application, the inner wall of the intestine main body 10 is provided with the expansion structure (not shown in fig. 2), and the control operation of the control mechanism 30 can cause the volume of the expansion structure to change outwards, and the volume change of the expansion structure outwards inevitably pushes the inner diameter of the intestine main body 10 to expand correspondingly, so that the inner channel corresponding to the intestine main body 10 becomes larger, and therefore, the guide wire 20 and/or the lens 40 connected with the guide wire can be more smoothly withdrawn from the intestine main body 10.

Similarly, the embodiment of the present application is not limited to the specific embodiment of the expansion structure, for example, the expansion structure may be a similar expansion structure in a stent for heart implantation, the expansion structure is actually prepared by overlapping ultrafine alloy materials, and a support structure with a small volume can be formed rapidly and automatically by pulling a certain setting of the control mechanism 30, of course, other structures capable of achieving rapid expansion may also be used. It can also be set that when the control mechanism 30 pulls the expansion structure again, the expansion structure can be collapsed, so as to recover the flexible structure of the intestinal canal body 10, and thus, the comfort of the patient can be prevented from being affected by the overlarge tube diameter.

On this basis, it is also possible to provide corresponding structures for the transmission connection between the expansion structure and the operation of the fixing element 50, for example, by simultaneously triggering the opening of the fixing element 50 when the expansion structure is brought into the supporting state in which the tube wall is expanded in the manner described above, or by simultaneously bringing the fixing element 50 into engagement when the expansion structure is pulled again so that the expansion structure collapses.

Alternatively, the operation unit 11 may be further provided with an observation mirror connected to the guide wire, and the live view taken by the lens 40 may be viewed through the observation mirror. Optionally, a display connected to the lens 40 in communication is further connected through the operation unit 11, and is configured to receive and display image information captured by the lens 40.

In one embodiment, the real-time image captured by the lens 40 is received by the observation mirror and the position of the intestine main body 10 at this time can be visually seen at the observation mirror, and the observation mirror is arranged at the position of the operation part 11 of the intestine main body 10, so that the user can directly see the position inside through the observation mirror when the eyes and hands are cooperatively operated.

In another embodiment, a display may be connected to the lens 40 in communication, and a real-time image captured by the lens 40 is visually seen through a large high-definition screen of the display.

Optionally, a direction adjusting mechanism is further arranged in the intestinal canal body 10, and the direction adjusting mechanism comprises an adjusting piece arranged at the operating part 11, a fixed connecting end arranged at the end part 13 and a flexible connecting line arranged between the adjusting piece and the fixed connecting end; the fixed connection end is including the at least three that sets up along the inner wall circumference equipartition of intestines tube body 10, and the one end of a flexible connecting wire is fixed to each fixed connection end, and the other end of flexible connecting wire all is connected with the regulating part in order to be controlled by the regulating part pulling respectively.

The illustrated end 13 of the intestinal canal body 10 is uniformly provided with four fixed connecting ends in the circumferential direction of the inner wall, the fixed connecting ends are fixedly connected with the inner wall of the intestinal canal body 10, and each fixed connecting end is fixedly connected with the end of one flexible connecting line respectively, for example, the flexible connecting lines are thin ropes with good flexibility, and the other ends of the thin ropes are connected with an adjusting piece located in the operation portion through the intestinal canal body. When the nasojejunoscope of the embodiment of the application is in a conveying path in a body after entering from a nasal cavity, once the straight line is sent to meet an obstacle, if the straight line meets the condition of changing the direction, the end part 13 of the intestinal canal body 10 can be rotated to the required direction by pulling operation through controlling the adjusting piece of the operation part 11. For example, a placing position is taken as a representative direction for explanation, four fixed connecting ends are respectively positioned in four directions of an upper direction, a lower direction, a left direction and a right direction, so that when the nasojejunal colonoscope needs to rotate leftwards to pass through in the process of feeding in the nasojejunal colonoscope, the end part of the string connected with the fixed connecting end on the left side is pulled through the adjusting piece, the string is tensioned and drives the fixed connecting ends to move, the direction adjustment of the end part of the directional enteroscope body 10 can be realized, the mode is convenient to operate by hands and easy to operate, and the operation accuracy and the stability under the control matching of the lens 40 are high.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A nasojejunoscopy, comprising: the novel intestinal canal comprises an intestinal canal body and a guide wire penetrating through the intestinal canal body, wherein the guide wire penetrates through the near end of the intestinal canal body, penetrates out of the far end of the intestinal canal body and can relatively slide in the intestinal canal body, the intestinal canal body is divided into an operation part, an insertion part and an end part which are sequentially connected with each other from the near end to the far end, a control structure is arranged in the operation part and used for controlling the sliding position of the guide wire, a lens connected with the guide wire is further arranged in the operation part, the control structure controls the position of the lens to move through the guide wire, a fixing part is further arranged at the end part and used for fixing or releasing the restraint on the guide wire and/or the guide wire under the control of the control structure.

2. The nasojejunoscopy of claim 1 wherein the end portion is curved in the direction of extension of the body of the intestine.

3. The nasojejunoscopy of claim 2 wherein the curvature of the end is configured as a circular arc curvature.

4. The nasojejunoscope according to claim 1, wherein the fixing member comprises a buckle which is buckled with each other in a ring shape, the buckle has two opposite clamping arms which accumulate elastic potential energy in a buckled state and are far away from each other, the control structure is connected with at least one of the clamping arms, and the two clamping arms are separated from the buckled state and are bounced away from each other under the action of the elastic potential energy when the control structure pulls the clamping arms.

5. The nasojejunoscopy of claim 4 wherein the snap in the snap-fit state has an annular inner diameter that is less than the maximum width of the lens.

6. The nasojejunoscope according to claim 1, further comprising a direction adjusting mechanism provided in the intestine body, the direction adjusting mechanism comprising an adjusting member provided at the operation part, a fixed connection end provided at the end part, and a flexible connection line provided between the adjusting member and the fixed connection end; the fixed connection end is including following the at least three that the inner wall circumference equipartition of intestines pipe body set up, each fixed connection end is fixed one the one end of flexonics line, the other end of flexonics line all with the regulating part is connected with by the regulating part is the pulling respectively and is controlled.

7. The nasojejunoscopy of claim 1 wherein the insertion portion and the end of the body of the intestine are made of flexible material.

8. The nasojejunoscopy of claim 7 wherein an expansion structure is further provided within the body of the intestine, the expansion structure being driven to expand the inner diameter of the insertion portion.

9. The nasojejunoscopy according to claim 1, wherein an observation scope connected to a guide wire is further provided in the operation section, and a real-time image captured by the lens barrel is visible through the observation scope.

10. The nasojejunoscope according to claim 9, wherein a display communicatively connected to the lens is further connected through the operation part, and receives and displays image information photographed by the lens.

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