CN218356175U - Nasogastric tube inserting mirror - Google Patents

Abstract

The utility model provides a nasogastric intubation lens, include: the one end of connecting portion is for holding the portion of putting, and the other end is connected the endoscope structure and is stretched into the intraductal integrative structure that forms of nose intestines, and the endoscope structure includes the module of making a video recording of nose tip to and connect the cable of this module of making a video recording and connecting portion and weave the structure, wherein, the cable is woven the structure and is included outer cavity cable sheath and the cable bundle of parcel in it, and the cable bundle is woven by many signal conductor and stranded guide wire and is formed. The cable that will guide wire and sight glass structure is woven, through weaving the inside adjustment of arranging of structure to the sight glass cable, make the cable weave the structure and can have the rigidity and the flexibility characteristic of cable and guide wire concurrently, thereby when guaranteeing sight glass signal transmission, make the sight glass guide the inserting of nose intestines pipe more convenient, improve and put a tub success rate and efficiency, and nose intestines pipe is difficult for producing the dish in human natural passage and is strutted, and simultaneously, the cable external diameter obtains further the limit and contracts.

Description

Nasogastric tube inserting mirror

Technical Field

The utility model relates to the technical field of medical equipment, specifically speaking relates to one kind and weaves cable construction and guide wire structure to form and to compromise flexible and rigid endoscope cable and weave the structure, the visual nasogastric tube mirror that utilizes this structure to form again.

Background

After the human body eats, food enters the stomach through the esophagus after being chewed and ground through the oral cavity. Gastric juice is secreted while the stomach peristalsis, protein and other components in the food are digested, and then the food in a semi-liquid thick state is delivered to the intestinal tract system. Bile secreted by the liver and gall is mixed with pancreatic juice secreted by the pancreas in small intestine to decompose thick food into small molecular substances, and finally, villi on the wall of the small intestine absorbs the decomposed small molecular substances and delivers nutrients to cells of the whole body through a blood system.

It is obvious that each organ plays a different important role in human digestion. Damage to any part of the gastrointestinal system can cause an obstruction to the digestive process. Clinically, there are many cases in which the gastrointestinal function is insufficient and the nutrition cannot be normally taken, in addition to patients who have a lesion in the stomach and are entirely resected from the stomach. In cases where transgastric nutrition is not tolerated or there is a risk of reflux and aspiration, enteral nutrition support is often used in cases where postpyloric feeding is used in order to pass the stomach system directly into the intestinal system behind the pylorus.

For feeding after pylorus, one way in the prior art is to perform a minimally invasive gastrostomy or a minimally invasive jejunostomy, i.e. to open artificial passages to the stomach or intestine in the flank of the patient, and then to deliver the liquid food directly to the intestine of the patient through the indwelling esophagus erected in these artificial passages. However, in the case of the indwelling esophagus through the artificial passageway into the patient's body, the artificial passageway extending from the patient's epidermis to the stomach or intestine must be formed through multiple layers of body tissue, making it difficult to avoid infection at the wound site during and after the operation.

In view of the above wound infection problem with artificial pathways, there is a trend in the art to implement the above pyloric postfeeding scheme with natural pathways in the human body. For example, in the clinical enteral nutrition support treatment, the indwelling naso-enteric esophagus is inserted from the nasal cavity of a patient by blinding, and the intubation tube passes through the esophagus and the stomach in sequence according to the factors such as the self-peristalsis of the gastrointestinal tract and gravity, and finally reaches the intestinal tract through the pylorus. In the blind insertion method, in order to facilitate the staying of the nasal-intestinal esophagus to advance in a human body, a flexible guide wire is penetrated through a flexible hose, and after the staying nasal-intestinal esophagus enters a specified position along with the flexible guide wire, the guide wire is pulled out, so that the indwelling nasal-intestinal esophagus catheterization process is completed.

However, the difficulty with the blind insertion method is: due to the lack of a visual scheme, the movement of the guide wire in the human body completely depends on the manual operation of medical care personnel, so the success rate of putting the tube is difficult to ensure. In order to solve the technical problem, a visualization scheme of the gastrointestinal tube is provided in the prior art. For example, a visual nasogastric tube is disclosed in the utility model with the publication number of CN 212090251U, which combines a catheter and an endoscope, a guide cavity for delivering nutrient solution after placing the tube and a cable cavity for laying a camera module cable are formed in the catheter, the cable in the cable cavity is connected with the camera module fixed at the front end of the catheter, then, in the tube placing process, a guide wire passes through the guide cavity, so that the position of the catheter is observed in real time through the camera module, and the catheter with the guide wire is continuously adjusted to enable the pipeline to move slowly in the human body.

The existing gastrointestinal tube visualization scheme including the cited scheme solves the problem that the blind-insertion method tube placement process is invisible, but still has the following problems:

1) After placement, the guidewire is withdrawn, leaving the gastrointestinal tube in the patient. In the prior art, after a period of delivery, the gastrointestinal catheter is taken out and replaced with a new one. The reason why the taken-out gastrointestinal tube is not reused after being cleaned is that the slender indwelling hose is in the human body for a long time in a use state, so that the thorough cleaning is difficult and the process is complicated. Accordingly, the camera module fixedly connected to the front end of the catheter is abandoned together, so that the treatment cost is increased;

2) In order to avoid the camera module at the front end of the guide pipe, the guide cavity forms a biased output opening, and the direction of the output opening on the pipe wall of the guide pipe is not consistent with the extending direction of the guide pipe, so that the conveying of the fluid food is influenced by the output opening and is difficult to calibrate;

3) In order to adapt to the inlet wire of seal wire and the cable of the module of making a video recording respectively, the pipe preparation needs to form two cavity structures, and the sealed colloid structure that the pipe front end was used for fixed the module of making a video recording in addition for the bore of pipe is difficult to further reduce.

Therefore, improvements should be made to the prior art to solve the above technical problems with existing gastrointestinal tube visualization schemes.

SUMMERY OF THE UTILITY MODEL

The utility model is not enough to prior art, the utility model provides a to guide the silk and weave into the thigh with the module cable of making a video recording, under the prerequisite of guaranteeing endoscope signal transmission for the endoscope module cable of making a video recording realizes compromising rigidity and flexibility ability, and on the basis of realizing the visual scheme of speculum, improves the nasogastric tube mirror of putting pipe precision and efficiency.

In order to solve the technical problem, the utility model discloses an edible gastrointestinal intubation mirror of nose has been taken, this edible gastrointestinal intubation mirror of nose includes: the nasal and intestinal tube is a hollow hose, one end of the two ends of the nasal and intestinal tube is an insertion end, and the other end of the two ends of the nasal and intestinal tube is a connecting end; the endoscope structure comprises a camera module at the head end part and a cable weaving structure for connecting the camera module and the connecting part, wherein the cable weaving structure comprises an outer-layer hollow cable sheath and a cable bundle wrapped in the cable sheath, the cable bundle is formed by weaving a plurality of signal wires and a plurality of guide wires, and the outer diameter of the cable weaving structure is in the range of 1.8 mm to 1.9 mm.

As an optimization of this scheme, connecting portion are the cone of tapering from the tail end to the head end, and its head end face further extends again and forms the connector, wherein, the cable is woven the structure and is passed through the connector with the butt joint can be dismantled to connecting portion, the link of nose intestines tube forms the coupling that expands gradually, the coupling cover is established on the connector and with connecting portion cup joint.

Preferably, each signal conductor is covered by a shielding film layer, a plurality of strands of the guide wire are woven into at least one strand of the guide bundle structure, and a plurality of signal conductors and the guide bundle structure are woven to form the cable bundle, wherein the plurality of signal conductors are distributed between the guide bundle structure and the cable sheath.

As still another further preference of the present solution, the guided beam structure is coated by a shielding film layer.

In yet another preferred embodiment of the present invention, the cable harness is formed by winding a plurality of signal conductors around the surface of the guide harness structure.

Preferably, each of the signal conductors is covered by a shielding film layer, and a plurality of the signal conductors and a plurality of the guide wires are mixed and braided to form the cable bundle, wherein at least part of the plurality of signal conductors is located between the plurality of the guide wires.

As another preferable embodiment of the present invention, the cable braiding structure further includes at least one reserved channel for guiding an instrument, each reserved channel is a hollow accommodating cavity, wherein the reserved channel is located in a space between the cable sheath and the cable bundle, and/or the reserved channel is located in the cable bundle.

As a further preferable aspect of the present invention, the camera module includes: the cable weaving structure comprises a cable weaving structure, a connecting part and a head end sleeve structure, wherein the cable weaving structure is connected with the connecting part in a butt joint mode; the camera, this camera inlays and locates head end bushing structure hold the intracavity, just the tip of camera with the tip parallel and level of head end bushing structure, wherein, still include the light source subassembly, the light source subassembly encircles and locates the camera periphery.

Preferably, the light source assembly includes a plurality of light sources symmetrically distributed in the camera axis direction.

As still further preferred aspect of the present invention, an end of the camera head at least partially protrudes beyond an end of the head-end sleeve structure.

Due to the adoption of the technical scheme, the utility model discloses compare in prior art and have following beneficial technological effect:

1. on the basis of the existing visual intubation scheme, a guide wire and a cable of a sight glass structure are woven, and the woven cable woven structure can have the rigidity of the cable and the flexibility of the guide wire at the same time through the adjustment of the internal arrangement of the sight glass cable woven structure, so that the sight glass signal transmission is ensured, the guide insertion of the sight glass is more convenient, the intubation success rate and efficiency are improved, and the intubation is not easy to coil and squat in a natural channel of a human body; moreover, after the guide wire and the cable are woven into a strand, the cable or the wire channel which are separated from each other does not need to be arranged in the nasointestinal tube, so that the possibility is provided for further limiting the size of the cable outer protective sleeve; in combination with the two aspects, furthermore, as the camera module of the sight glass structure is not fixed with the port of the hose through the sealant, the space occupied by the sealant is saved at the port of the insertion end of the nasointestinal hose, and the specification of the nasointestinal hose can be further reduced on the basis of the size;

2. the camera module is separated from the gastrointestinal catheterization, and after the catheterization is finished, the endoscope structure can be integrally pulled away along with the guide wire, so that the difficulty and cost of cleaning and sterilizing the endoscope structure are reduced, and the possibility of lens recovery is provided; meanwhile, the endoscope cable weaving structure is detachably connected with the connector of the connecting part, so that the endoscope structure can be selectively recycled after the endoscope is pulled out and detached by quickly separating the handle of the connecting part from the endoscope structure, and the intubation scope part or the whole body can be used once;

3. the endoscope structure is drawn away along with the guide wire, so that the fluid food can be directly output through the opening of the insertion end of the endoscope structure after entering the nose and intestine hose, and compared with the scheme that the output port is offset on the tube wall in the prior art, the scheme that the fluid food is conveyed by utilizing the opening of the insertion end of the nose and intestine hose to be matched with the offset opening on the tube wall ensures that the food conveying position is more accurate, and the blocking condition of the fluid food at the offset conveying port is avoided to a greater extent;

4. the signal cable is coated by a shielding film layer, a ground wire is added into a wire bundle, and the outer diameter of the cable of the nasogastric intubation lens is limited to be within the range of 1.8 mm to 1.9 mm after the cable is woven into a whole strand structure;

5. according to different cable weaving structures, under the same outer diameter, more guide wires can be woven into the cable sheath, the overall rigidity of the cable weaving structure is improved, and under the condition that the same number of guide wires are adopted, the inner space of the cable sheath can be saved, so that the outer diameter of the cable weaving structure can be further reduced in addition to the improvement of the channel expansibility;

6. after reasonable adjustment, a reserved channel can be added in the inner space of the cable sheath, the reserved channel can realize the expansion of the detection function of the endoscope, and the requirement of the guidance of other instruments in operation can be met.

Drawings

FIG. 1 is a schematic view showing the overall structure of a nasogastric intubation lens according to a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram showing a front view of the nasogastric and gastrointestinal intubation lens of FIG. 1 with the nasointestinal tube removed;

fig. 3 is a partially enlarged view showing an enlarged structure of a portion a of fig. 2;

fig. 4 is a cross-sectional view schematically showing a cable transverse cross-section of a cable braiding structure according to a first embodiment of the present invention;

fig. 5 is a schematic view schematically illustrating a front view structure of a cable braiding structure according to a second embodiment of the present invention;

fig. 6 is a cross-sectional view schematically showing a cable transverse cross-section of a cable braiding structure according to a third embodiment of the present invention;

fig. 7 is a cross-sectional view schematically showing a cable transverse cross section of a cable braided structure in a fourth embodiment of the present invention;

fig. 8 is a cross-sectional view schematically showing a cable transverse cross section of a cable braiding structure according to a fifth embodiment of the present invention.

Detailed Description

Embodiments of the nasogastric intubation lens according to the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.

It should be noted that, in the embodiments of the present invention, the expressions "first" and "second" are used for distinguishing two entities with the same name but different names or different parameters, and it can be seen that "first" and "second" are only used for convenience of description and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe this any more.

Although various intubating endoscope visualization schemes are provided in the prior art, the essence of the intubating endoscope visualization scheme is that a guide wire and an endoscope structure are inserted into a nasointestinal soft tube together. In the process of tube placement, the guide wire plays a guiding role, and the endoscope solves the problem of visualization, so that the problem of tube placement by blind insertion of the nasogastric tube is solved. However, in order to achieve the insertion of the guide wire and the endoscope structure together, at least two separate channels are generally required to be formed in the nasointestinal tube, and are used as a threading channel of the guide wire and an insertion channel of the endoscope, or a camera assembly is fixed at the end of the nasointestinal tube. And the ubiquitous problem among the above-mentioned existing scheme is that just can't reduce the size of nose intestines hose and endoscope cable in order to compromise the rigidity and the flexibility of intubate mirror overall structure, perhaps in order to reduce the size of endoscope cable again, just can't guarantee the rigidity and the flexibility of intubate mirror overall structure. Whether the rigidity and flexibility of the intubating lens structure or the size of the hose and cable are important technical criteria of the intubating lens.

The utility model provides an aforementioned technical problem of prior art's thinking include:

1) In order to further reduce the specification of the cable on the basis of considering both the rigidity and the flexibility of the cable, the guide wire is combined with the original cable, and meanwhile, the hardness and the flexibility of the braided structure are improved through the optimization of the arrangement of the guide wire and the signal cable, so that the occupied space of the cable structure is saved;

2) The mode that the hose is walked line and camera lens is fixed at the hose head end is improved to the mode of endoscope structure and nose intestines hose separation to can take out the endoscope structure is whole after putting the pipe and accomplishing.

Fig. 1 is a schematic view schematically showing a front view structure of a nasogastric intubation lens according to a preferred embodiment of the present invention. Referring to fig. 1, in the preferred embodiment, the nasogastric intubation lens includes a long straight nasointestinal tube 10, a connection portion 20, and a grip portion 30, as seen from a front view. The nasointestinal tube 10 is generally a hollow hose with two open ends, and includes an insertion end 11 and a connection end 12, the connection end 12 is a portion for being butted against the connection portion 20, as shown in the figure, the connection end 12 forms a gradually expanding tube joint 13, and the gradually expanding structure of the tube joint 13 can be adapted to the gradually contracting structure on the head end of the connection portion 20, and the fixation between the two is realized by sleeving, butting and the like. The insertion end 11 is inserted into the nasal cavity of a patient during catheterization, and a biased liquid diet output port 14 is formed in the tube wall close to the insertion end 11. The grip portion 30 is a columnar handle member formed at the rear end of the connection portion 20, and when operated, the nasointestinal tube 10 is inserted from the nasal cavity by holding the grip portion with the hand.

When the nasointestinal tube 10 is removed, the endoscope is connected to the tip end of the connecting portion 20. Referring to fig. 2, fig. 2 is a schematic view showing a front view of the nasogastric intubation lens of fig. 1 with the nasointestinal tube removed. As shown, the head end of the connection portion 20 is connected with the cable braided structure of the endoscope structure 40. The connecting portion 20 is tapered from the tail end to the head end to form a frustum body, and the head end surface of the frustum body further extends to form a conical connector 21. Referring back to fig. 1 in conjunction with fig. 2, as previously described, the connecting end 12 of the nasointestinal tube 10 forms a tapered structure that is adapted to the tapered structure of the connecting portion 20.

The endoscope structure 40 is composed of a camera module 41 and a cable weaving structure 42, and the camera module 41 is used as the head end of the endoscope structure 40 and is butted with the connecting head 21 through the cable weaving structure 42. During assembly, the camera module 41 is inserted into the insertion end 11 from the connection end of the nasointestinal tube 10 until the gradually expanding tube joint 13 of the nasointestinal tube 10 is connected with the gradually reducing body of the connection part 20 to form an integral structure. It should be noted that the cable braiding structure 42 and the connector 21 may be detachably arranged, so that the cable braiding structure 42 and the connecting portion 20 are separated by the connector when the endoscope structure is integrally pulled out after the tube is placed. If equipment needs to be retrieved, the abluent degree of difficulty and cost of equipment can be reduced after the separation, and if equipment disposable, then adopt detachable structure can conveniently carry out corresponding processing to different parts.

The camera module 41 is described. Fig. 3 is a partially enlarged view showing an enlarged structure of a portion a of fig. 2. As shown in the figure, camera module 41 includes head end bushing structure 411, camera 412 and light source subassembly 413, head end bushing structure 411 is as the cable and weaves the structure 42 and camera 412's linking structure, it forms multistage bushing structure, according to the direction that fig. 3 presented, including being located the first tubular structure that the bottom is used for the cable to weave structure 42 and receives the bundle, and be located the top and be used for bearing the second tubular structure of camera, the caved-in formation of second tubular structure holds the chamber, it inlays and is equipped with camera 412 to hold the intracavity, light source subassembly 413 is around establishing the periphery at camera 412. In the preferred embodiment of the present invention, to the configuration of light source subassembly, can be as shown in fig. 3, adopt annular whole light source ring to locate around the camera, also can adopt mated light source, symmetric distribution is around the camera, the preferred embodiment of the present invention is not limited to this, no longer gives details here.

With reference to the external structure, an embodiment of the cable braiding structure will be described below with reference to the drawings.

Example one

In the endoscope structure, the guide wire is a whole strand structure formed by binding and weaving a plurality of steel wires, and the signal cables are single-stranded wires respectively coated by the shielding film layer. On this basis, referring to fig. 4, fig. 4 is a cross-sectional view schematically illustrating a cable transverse cross section of a cable weaving structure in a first embodiment of the present invention. The outer-layer hollow cable sheath 421 is made of PTFE (polytetrafluoroethylene) material, hard stainless steel is selected as the material to make a braided net of a shielding layer, a plurality of guide steel wires are braided into a whole guide bundle 422, and then the guide steel wires are braided with five signal wires 423 and a ground wire 424 to form a cable bundle, and the signal wires 423 are arranged around the guide bundle 422 and are positioned in an area between the guide bundle 422 and the cable sheath 421.

After the cable braided structure is adopted, the outer diameter of the cable braided structure of the internal endoscope structure can be reduced to be in the range of 1.8 mm to 1.9 mm.

Example two

According to the scheme of the first embodiment, a common guide bundle structure is not improved, the signal conducting wire and the guide bundle are directly woven, and the manufacturing process is relatively simple. However, in the case of the cable structure of the endoscope structure, the flexibility directly determines whether the guide wire is easily broken during the catheterization process, and is an important parameter equal to the hardness. Therefore, in order to further improve the flexibility of the cable braided structure, a further improvement is made on the basis of the first embodiment to form a second embodiment. Referring to fig. 5, fig. 5 is a schematic view schematically illustrating a front view structure of a cable braiding structure according to a second embodiment of the present invention. As shown in the figure, six signal wires are respectively coated by the shielding film layers to form a six-core flat cable and are wound on the surface of the guide bundle structure, so that the flexibility of the whole cable is effectively improved.

EXAMPLE III

In the first embodiment, a plurality of signal conductors 423 and a ground wire 424 are distributed around the guiding bundle 422, but as can be seen from fig. 4, a large number of gaps are still left between the signal conductors 423, the ground wire 424 and the whole guiding bundle 422 in the inner cavity area of the cable sheath, and in order to utilize the gaps, the preferred embodiment of the present invention provides the following improvement to the cable braiding structure shown in the first embodiment to form a third embodiment.

Referring to fig. 6, fig. 6 is a cross-sectional view schematically illustrating a cable transverse cross section of a cable braiding structure according to a third embodiment of the present invention. Referring back to fig. 4 and comparing fig. 6, the difference from the first embodiment is that the plurality of guide wires are not woven into the entire guide bundle as in the first embodiment, but are woven into a plurality of guide bundles 422.

Referring to fig. 6, a pre-channel 425 is further formed in the cable sheath 421, and the pre-channel 425 is a hollow sleeve made of PTFE (polytetrafluoroethylene), and the pre-channel is located at the center of the cable sheath 421, so that the plurality of guiding bundles 422 and the signal wires 423 and the ground wires 424 are distributed in the annular region between the inner wall of the cable sheath 421 and the outer wall of the pre-channel 425. The pre-channel 425 may be penetrated by a tube or other intraoperative instruments, such as a guide wire of a forceps if biopsy is required, or a needle for drug delivery if drug delivery is required.

Example four

In the flat cable structure of the second embodiment, the flexibility of the cable is improved, but in the winding structure, the positions of the signal conductors 423 and the ground wire 424 in the cable sheath 421 are still easily shifted, and on the other hand, in the first embodiment and the second embodiment, the inner space of the outer cable sheath 421 is not effectively utilized. To this problem, for compromise above-mentioned aspect, the utility model discloses make further improvement again, proposed embodiment four. Referring to fig. 7, fig. 7 is a cross-sectional view schematically illustrating a cable transverse cross section of a cable braiding structure according to a fourth embodiment of the present invention. As shown in the figure, the signal wire 423 and the ground wire 424 are covered by a shielding film layer, and then a plurality of strands of guiding steel wires, the signal wire 423 and the ground wire 424 after shielding treatment are mixed and braided to form a whole strand of cable bundle which is wrapped in the cable sheath 421.

To this structure, compare in current structure, the beneficial technological effect that it possessed lies in:

1) The shielding layer outside the whole guide bundle is cancelled, and the signal conducting wires and the guide wires are woven into a whole strand in a mixed weaving mode, so that the internal space of a cable sheath can be greatly saved under the condition that the same number of guide steel wires are adopted, and the outer diameter of a cable can be further reduced; if the outer diameter is the same, more guide wires can be woven in the cable sheath to improve the overall rigidity of the cable weaving structure;

2) The space in the cable sheath is further utilized, and besides the outer diameter of the cable sheath can be reduced, other function expansion lines can be additionally arranged by utilizing the space, and the function expansion lines can be positioned in the space between the cable sheath and the cable bundle and can also be arranged in the cable bundle;

3) The mixed braiding of the whole strand of cable bundle can meet the requirements of hardness and flexibility by adjusting the number of the guide wires, so that the nose and intestine tube is not easy to roll and squat in a human body in the tube arranging process.

When the intubation is actually performed, the nasogastric intubation lens with any one of the first to fourth embodiments which is formed in an assembling mode is inserted into the nasal cavity of a patient, then the condition of a body channel is observed through the camera module, the intubation lens slowly passes through the nasal cavity, the esophagus and the stomach and finally passes through the pylorus to reach the intestinal tract, and intubation is completed. Then, by withdrawing the endoscope structure entirely within the nasointestinal tube, the liquid food can be discharged through the offset liquid food discharge port 14 and the insertion end opening.

EXAMPLE five

In the third embodiment and the fourth embodiment, the insufficient space utilization in the sheath existing in the first embodiment and the second embodiment is solved, respectively, and it is easy to think that the fifth embodiment is formed by combining the third embodiment and the fourth embodiment, that is, applying the reserve channel in the third embodiment to the result of the fourth embodiment.

Referring to fig. 8, fig. 8 is a cross-sectional view schematically illustrating a cable transverse cross section of a cable braiding structure according to a fifth embodiment of the present invention. As shown, a reserved channel as shown in the third embodiment is added to the hybrid of the signal wire 423, the ground wire 424 and the guide wire.

In practice, when the third embodiment is combined with the fourth embodiment or the fifth embodiment according to the specific requirements of the intubation lens, the multi-strand guide wire can be partially woven into a guide bundle structure as described in the third embodiment, and at least one guide bundle structure is mixed with the single-strand guide wire, the signal wire and the ground wire to form a cable woven structure. The preferred embodiment of the present invention should not be limited by the number of the guiding bundle structures, the number of the guiding wires in the guiding bundle structures, and the specific combination and arrangement between the guiding bundle structures and the signal wires and the ground wires.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A nasogastric intubation lens, characterized in that it comprises:

the nasal and intestinal tube is a hollow hose, one end of the two ends of the nasal and intestinal tube is an insertion end, and the other end of the two ends of the nasal and intestinal tube is a connecting end;

a connecting part, a holding part is formed at the tail end of the connecting part, an endoscope structure capable of extending into the nose intestine is arranged at the head end of the connecting part, the endoscope is inserted from the connecting end of the nose intestine and extends to the inserting end until the connecting end of the nose intestine is in butt joint with the head end of the connecting part to form an integral structure, the endoscope structure comprises a camera module at the head end part and a cable weaving structure for connecting the camera module and the connecting part, wherein,

the cable braided structure comprises an outer layer of hollow cable sheath and a cable bundle wrapped in the cable sheath, the cable bundle is formed by braiding a plurality of signal conducting wires and a plurality of guiding wires, and the outer diameter of the cable braided structure is in the range of 1.8 mm to 1.9 mm.

2. The nasogastric intubation lens according to claim 1, wherein the connection part is a cone tapered from a tail end to a head end, and a head end surface of the cone further extends to form a connection head, wherein,

the cable is woven the structure and is passed through the connector with connecting portion detachable butt joint, the link of nose intestines tube forms the coupling that gradually expands, the coupling cover is established on the connector and with connecting portion cup joint.

3. A nasogastric intubation lens according to claim 2, wherein each of said signal wires is covered by a shielding film layer, a plurality of said guide wires are braided into at least one stranded guide bundle structure, a plurality of said signal wires are braided with said guide bundle structure to form said cable bundle, wherein,

a plurality of the signal conductors are distributed between the guide bundle structure and the cable jacket.

4. A nasogastric intubation mirror according to claim 3, wherein the guide bundle structure is covered by a shielding film layer.

5. The nasogastric intubation lens according to claim 3 or 4, wherein the cable bundle is formed by winding a plurality of signal wires around the surface of the guide bundle structure.

6. The nasogastric intubation lens according to claim 2, wherein each of said signal conductors is covered by a shielding film layer, and a plurality of said guide wires are mixed with a plurality of said signal conductors to form said cable bundle, wherein,

the plurality of signal conductors are at least partially positioned between the plurality of guide wires.

7. The nasogastric intubation lens according to any one of claims 1 to 4 and 6, wherein the cable braided structure further comprises at least one pre-passage for instrument guidance, each pre-passage being a hollow receiving cavity, wherein,

the pre-channel is located in a space between the cable sheath and the cable bundle, and/or,

the reserve channel is located in the cable bundle.

8. The nasogastric intubation lens according to claim 1, wherein the camera module comprises:

the cable weaving structure comprises a cable weaving structure, a connecting part and a head end sleeve structure, wherein the cable weaving structure is connected with the connecting part in a butt joint mode;

a camera embedded in the accommodating cavity of the head end sleeve structure, wherein the end part of the camera is flush with the end part of the head end sleeve structure,

still include the light source subassembly, the light source subassembly ring is located the camera periphery.

9. The nasogastric intubation mirror according to claim 8, wherein said light source assembly comprises a plurality of light sources symmetrically distributed about said camera axis.

10. A nasogastric intubation scope according to claim 9, wherein an end of said camera head at least partially protrudes out of an end of said head end sleeve structure.

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