CN205460352U - Through a mouthful nasal cavity esophagus conduction device - Google Patents

Abstract

The utility model discloses a through a mouthful nasal cavity esophagus conduction device, including be used for putting into the nasopharynx chamber say in external nares and choana exit set up the passageway be convenient for to guide the core in this passageway guide down by the nasal cavity guide wire of choana export inlet port intracavity, get into the oral cavity and be used for connecting the nose bile duct temporarily behind outlet chamber through the choana down in the guide of nasal cavity guide wire and be used for guiding the nose bile duct through choana entering nasal cavity after the core is guided to the elasticity of external nares play nasal cavity. Set up the guide chamber in the nasal cavity guide wire, guide chamber head end sets up the J -shaped bending, and the major axis of elasticity guide core behind lower guide chamber of guide of guide chamber head end J -shaped bending becomes 15 - 90 contained angles with the major axis of guide intracavity. It is all alone that elasticity guide core sets up as that the leaded light of establishing reflecting material is scribbled on the surface, and the head end of elasticity guide core sets up the elasticity ring body. The utility model discloses a simple structure, convenient to use can be quick effectually put into the nose bile duct under the scope after will can reduce patient's misery in the nasal cavity is guided to the bile duct that the mouth was put into, reduce the medical staff operation degree of difficulty, and is safe effective.

Description

Per os nasal cavity esophagus conduction device

Technical field

This utility model relates to a kind of medical guide wire, belongs to the technical field of medical apparatus and instruments.

Background technology

Clinically, be expert at endoscopic retrograde ERCP (ERCP) time, often need some patients's indwelling nose bile duct Carry out biliary drainage in bile duct.During indwelling nose bile duct, first pass through oral cavity duodenoscope through digestive tract by one end of nose bile duct Being placed in biliary tract, the other end is stayed outside oral cavity, then is drawn from nasal cavity by nose bile duct through mouth and nose conversion, to alleviate patient's indwelling nose gallbladder The uncomfortable degree of pipe.

When the mouth and nose carrying out nose bile duct are changed, it is common practice to: one is had certain elastic nose tube at one end It is inserted in oral cavity from nasal cavity, then with hands, it from oral cavity pull-out and is docked with staying extrabuccal nose bile duct, namely by nose One end of bile duct is inserted one end of nose conduit and is mutually linked, the nose conduit other end outside then tractive stays nasal cavity by nose conduit Extracting out from nasal cavity, nose bile duct is i.e. gone to nasal cavity with nose conduit by oral cavity and stretches out from nasal cavity, is pulled out from nose conduit nose bile duct one end Go out, thus complete mouth and nose transformation process.

The difficult point of nose bile duct mouth and nose conversion is inserting and taking-up from oral cavity of nose tube at one end: (1) nose conduit inserts The degree of depth is difficult to grasp, and crosses and deeply may touch or insert glottis and cause choking and cough even laryngospasm equivalent risk；(2) the one of nose conduit The end taking-up from oral cavity is fingerhold or lock ring nesting, operating difficulties；(3) one end of nose conduit the taking-up behaviour from oral cavity The misery of patient is increased, it is also possible to cause damage when making；(4) in operation, patient is likely to, when not being resistant to and shut up, the behaviour that bites Author's finger, even causes infectious disease；(5) one end of nose conduit is relatively deep due to oral cavity when the taking-up in oral cavity, illumination deficiency shadow Ring operator to observe, in turn result in increase operation easier.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of per os nasal cavity esophagus conducting Device, forms the guiding channel through external nares to oral cavity by nasal cavity guide wire, will guide core by guiding channel is fast and convenient Per os is derived.Guide core and can propagate the light of tail end, be both easy to be accurately positioned when surgical doctor goes out choana to nasal cavity guide wire, Again to oral cavity deep illuminating, it is simple to surgical doctor operates.Dissect special patient, guide elastic ring and hook that core print end is arranged Bar with the use of, also can be readily accomplished guiding operation.Nasal cavity guide wire and guiding core hydrophilic coating are arranged, and can reduce frictional force, Reduce patient's discomfort and damage.This utility model solves the outer operation problem that nose bile duct imports nasal cavity of per os, alleviates Patient is uncomfortable, reduces medical worker's operation easier, could be used that special dissection patient in time, simple in construction, with low cost, Safe and reliable.

Described a kind of per os nasal cavity esophagus conduction device, exports at external nares and choana including in inserting nasopharynx tract Place sets up the soft quality nasal cavity guide wire of passage and guides nose bile duct to enter the resilient guide core of nasal cavity for direct oral cavity.Described nasal cavity Being provided for guiding the lead-in cavity of resilient guide core in guide wire, it is curved that described lead-in cavity is set to J-shaped at nasal cavity guide wire head end Song, the two ends of described J-shaped bending become 15 ° of 90 ° of angles.Bend at forced section potential energy after described resilient guide core stress, stress Can Fast Restoration after disappearance.The cross section of described resilient guide core cross section and lead-in cavity matches, and described resilient guide core can be inserted Slide smoothly along lead-in cavity major axis in lead-in cavity.The both sides that described resilient guide core bends at J-shaped after going out J-shaped bending along lead-in cavity Near-end becomes 15 ° of 90 ° of angles.

Described resilient guide core is that the straight-line profile that optical material is made leads core, at described resilient guide core print end 1-2cm Lateral wall in addition is coated with reflectorized material.Described resilient guide core tail end is arranged can shirk light source, described light source energy and elastic conducting Draw core tail end to connect temporarily.

The head end of described resilient guide core is provided for connecting the guiding interface of nose bile duct temporarily, and described guiding interface can be with Nose bile duct tail end coupling connects.

Described resilient guide core print end arranges elastic ring, and described elastic ring can be accommodated in the lead-in cavity of nasal cavity guide wire, Described elastic ring can Quick-return be circulus after going out lead-in cavity.

The described nasal cavity guide wire nasal cavity guide wire lateral surface in the opening side that lead-in cavity head end J-shaped bends is arranged Location line with nasal cavity guide wire longer axis parallel.

Described per os nasal cavity esophagus conduction device also includes that stretching into oropharynx position for per os ticks the raker of elastic ring, described Raker one end arranges soft eave tile, and the other end arranges hand holding handle.

Described raker closes on eave tile side and arranges luminous body, be set in described raker power supply that luminous body powers and for Control the switch of luminous body.

Described resilient guide core print end arranges magnetic material or the metal that can be attracted by magnetic material.

Described per os nasal cavity esophagus conduction device also include for through pars oralis pharyngis position for utilizing magnetic attracting force to attract and drawing Go out described resilient guide core print end pulls bar, described in pull rod head end arrange can by resilient guide core print end attract metal Or magnetic material.

Advantage of the present utility model: form the guiding channel through external nares to oral cavity by nasal cavity guide wire, by guiding Passage is fast and convenient inserts guiding core per nasal exit orifice and per os derivation；Nasal cavity guide wire cavity wall and guiding outer core are coated with Hydrophilic layer, reduces frictional force, the most convenient to operate, reduces again damage；The light source box arranged by outside and the guiding of tube material Core coordinates, and surgical doctor can be facilitated location, nasal cavity guide wire J-shaped bending exit position, can provide for ccavum oropharygeum deep again and shine Bright, it is simple to observe；Nasal cavity guide wire J-shaped bending outlet side arranges location line, and nasal cavity guide wire can be inserted rotation during nasal cavity Turn direction to make a decision；The head end of resilient guide core arranges guiding interface and is easy to be connected with nose bile duct tail end, it is to avoid come off；In elasticity The head end of guiding core arranges elastic ring and coordinates with raker, it is simple to the patient in anatomic abnormalities will guide core pull-out；Described raker head End arranges light source, can be to oral cavity deep illuminating, it is simple to surgical doctor operates；What magnetic attracted pulls bar and resilient guide core print end Also it is beneficial to take out the resilient guide core in deep, oral cavity.

Accompanying drawing explanation

Fig. 1 is this utility model overall schematic；

Fig. 2 is the structural representation of this utility model nasal cavity guide wire；

Fig. 3 is the structural representation of this utility model resilient guide core；

Fig. 4 is that this utility model resilient guide core is tube material connection light source box and bends through lead-in cavity head end J-shaped Opening goes out the structural representation of nasal cavity guide wire；

Fig. 5 is the structural representation that this utility model resilient guide core arranges elastic ring at head end；

Fig. 6 is this utility model raker structural representation.

Description of symbols: the bending of 1-nasal cavity guide wire, 11-lead-in cavity, 12-J shape, 2-resilient guide core, 21-guide interface, 22-elastic ring, 23-light source, 3-raker, 31-eave tile, 32-hand holding handle, 33-luminous body.

Detailed description of the invention

Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.

As shown in Fig. 1 and Fig. 4, a kind of per os nasal cavity esophagus conduction device, including in inserting nasopharynx tract at external nares Set up the soft quality nasal cavity guide wire 1 of passage with choana exit and guide nose bile duct to enter the elastic conducting of nasal cavity for direct oral cavity Draw core 2.Being provided for guiding the lead-in cavity 11 of resilient guide core 2 in described nasal cavity guide wire 1, described lead-in cavity 11 is led at nasal cavity Skirt 1 head end is set to J-shaped bending 12, and the two ends of described J-shaped bending 12 become 15 ° of 90 ° of angles.Described resilient guide core 2 is subject to Bending at forced section potential energy after power, stress can Fast Restoration after disappearing.Described resilient guide core 2 cross section and the cross section of lead-in cavity 11 Matching, described resilient guide core 2 slides smoothly along lead-in cavity 11 major axis in inserting lead-in cavity 11.Described resilient guide core 2 After going out J-shaped bending 12 along lead-in cavity 11, the both sides near-end in J-shaped bending 12 becomes 15 ° of 90 ° of angles.

It should be noted that this utility model uses exist opportunity: after nose bile duct successfully inserts biliary tract under gastroscope guides, protect Hold nose bile duct position motionless, through operating gastroscope hole, gastroscope is successfully deviate from outside nose bile duct.Now, the head end of nose bile duct is embedded in In bile duct, nose bile duct body is positioned at outside oral cavity through digestive tract outlet plenum, back segment redundance.In order to make patient comfort tolerance insert Internal nose bile duct, needs the redundance nose bile duct body of oral external is drawn external nares and by sky through choana and nasal cavity The nose bile duct of intracavity is fixing after making in order.

When being embodied as, the external diameter of described nasal cavity guide wire 1 is preferably smaller than 7mm, and preferred outside diameter is 5mm.By nose during use Chamber guide wire 1 inserts nasal cavity through external nares, makes head end go out choana and the most i.e. stops.At this moment the head end J-shaped of nasal cavity guide wire 1 The opening of bending 12 is between choana and esophageal aperture, then rotates nasal cavity guide wire 1 and makes the openings of J-shaped bending 12 To away from cavum nasopharyngeum rear wall, make the opening direction of J-shaped bending 12 just to oral cavity space direction.Now, nasal cavity guide wire 1 reaches Good use state.

Described nasal cavity guide wire 1 is outside the nasal cavity guide wire 1 of the opening side of lead-in cavity 11 head end J-shaped bending 12 Face arranges the location line with nasal cavity guide wire 1 longer axis parallel.By position line setting, operator by nasal cavity guide wire 1 through outward When nostril is inserted, the anglec of rotation to nasal cavity guide wire 1 has certain anticipation, and operator only need to will ensure the location of nasal cavity guide wire 1 Line is just to patient facial region's dead ahead, it is possible to guarantee that the opening of J-shaped bending 12 will not be just to posterior wall of oropharynx, even if could not be just To in oral cavity space, without departing from the most remote, it is simple to the location reached nasal cavity guide wire 1 when most preferably using state to operate is complete Become.

In order to increase the operability of operator further, described nasal cavity guide wire 1 and resilient guide core 2 outer surface are along long Axle arranges length scale line.Medical worker's setting by length scale line, inserts the degree of depth essence of nasal cavity to nasal cavity guide wire 1 Really grasp, be conducive to operating safety.In general, prenaris to Choanal distance is the external nares distance to ear-lobe, nasal cavity Guide wire 1 inserts the degree of depth of nasal cavity when reaching this distance, should extremely situation in meticulous inspection patient oral cavity.Now can tell trouble Person's head is swung back, and magnifies oral cavity, continuously sends out the sound of " ".Resilient guide core 2 outer surface length scale line is conducive to elasticity Guiding core 2 is inserted the degree of depth of nasal cavity guide wire 1 and is accurately positioned, thus judges the position of resilient guide core 2.As: work as resilient guide Core 2 enter the length of nasal cavity guide wire 1 consistent with the length of nasal cavity guide wire 1 time, the head end of resilient guide core 2 is positioned at nasal cavity leads The exit of skirt 1.After guaranteeing that nasal cavity guide wire 1 reaches optimum position, when resilient guide core 2 enters the length of nasal cavity guide wire 1 Spending when growing ear-lobe to the distance of bicker than the length of nasal cavity guide wire 1, the head end of resilient guide core 2 should arrive mouth in theory At lip；If not it is observed that resilient guide core 2 in oral cavity, illustrate to still need adjustment in the position of nasal cavity guide wire 1, at this moment need institute State resilient guide core 2 head end to back to, into nasal cavity guide wire 1 intracavity, can the position of nasal cavity guide wire 1 be adjusted.This Time, the scale on resilient guide core 2 surface is most important.

Under normal physiological condition, nasal cavity is corresponding with glottis mouth and esophageal aperture position, and via intranasal application inserts pipeline correspondence direction For esophagus or air flue direction.In order to make the resilient guide core 2 being embedded in nasal cavity guide wire 1 lead-in cavity 11 go out nasal cavity guide wire 1 After opening, direction of advance away from glottis and esophageal aperture but changes to point to oral cavity direction, and we are at nasal cavity guide wire 1 Lead-in cavity 11 head end arrange J-shaped bending 12, J-shaped bending 12 two ends become 15 ° of 90 ° of angles, this angle makes to reach most preferably to make Originally point to glottis by nasal cavity guide wire 1 lead-in cavity 11 of state and esophageal aperture direction is changed as pointing to oral cavity space side To.Under head end arranges the guiding of the lead-in cavity 11 that J-shaped bends 12, the resilient guide core 2 being embedded in lead-in cavity 11 is advanced to go out After the opening of the J-shaped bending 12 of lead-in cavity 11, resilient guide core 2 becomes 15 ° of 90 ° of angles, i.e. at the both sides near-end of J-shaped bending 12 After the opening of the J-shaped bending 12 that resilient guide core 2 goes out lead-in cavity 11, direction of advance points to oral cavity opening direction in being oral cavity.If nothing Fortuitous event, continues to advance resilient guide core 2, occurs in the face that the head end of resilient guide core 2 will open from patient.

Only the head end of resilient guide core 2 need to be connected with nose bile duct temporarily, the afterbody of the most hand-held resilient guide core 2, will Resilient guide core 2 together retires pull-out external nares together with nasal cavity guide wire 1, and the nose bile duct of outlet plenum will be at resilient guide core originally Go out external nares through choana and nasal cavity under the guiding of 2, continue to draw in suitable length and the nose bile duct that patient oral cavity inner disc turns is made in order, But ten million notes being taken out of by the nose bile duct in esophagus.Now, by external nares, nose bile duct is fixed, i.e. complete nose bile duct and lead Draw and fixing operation.

Outer wall beyond lead-in cavity 11 outboard sidewalls of nasal cavity guide wire 1 and resilient guide core 2 head end 1-2cm is coated with hydrophilic Coating.The purpose that hydrophilic coating is arranged is to reduce when nasal cavity guide wire 1 guides resilient guide core 2 friction to resilient guide core 2 Power, meanwhile, can reduce resilient guide core when using resilient guide core 2 to guide nose bile duct when choana and nasal cavity go out external nares 2 and the frictional force of nasal cavity, reduce patient's sense of discomfort and injury that nasal cavity mucosa is likely to result in by resilient guide core 2.

As shown in Fig. 3, Fig. 4 level Fig. 5, the head end of resilient guide core 2 is provided for connecting the guiding interface of nose bile duct temporarily 21, described guiding interface 21 can be connected with nose bile duct tail end coupling.By the guiding interface arranged at the head end of resilient guide core 2 21, resilient guide core 2 can the most firmly connect with nose bile duct tail end temporarily, it is to avoid uses resilient guide core 2 to guide nose bile duct Time nose bile duct afterbody and resilient guide core 2 depart from, cause guiding unsuccessfully, it is ensured that guide successfully.

As shown in Figure 4, the straight-line profile that resilient guide core 2 is made for optical material leads core, in 2, described resilient guide core Lateral wall beyond end 1-2cm is coated with reflectorized material.Correspondingly, described resilient guide core 2 tail end is arranged can shirk light source 23, Described light source 23 can be connected with resilient guide core 2 tail end temporarily.

Connected by resilient guide core 2 tail end and can shirk light source 23, the resilient guide core 2 that light can make at optical material Inside travel to head end.Lateral wall beyond described resilient guide core 2 head end 1-2cm is coated with reflectorized material, on the one hand reduces luminous energy Loss, strengthens and can shirk light source 23 light conduction to brightness during resilient guide core 2 head end, on the other hand, the painting of reflectorized material If making to shirk light source 23 light can change angle conduction in J-shaped bends the resilient guide core 2 of 12 embedded sets.

Before concrete operations, resilient guide core 2 head section is inserted suitable length in nasal cavity guide wire 1, makes resilient guide core 2 Head end is embedded in the opening of J-shaped bending 12 of nasal cavity guide wire 1.Now light source 23 light through propagate after at resilient guide core 2 At head end 1-2cm, i.e. the opening part of J-shaped bending 12 appears with optimal brightness.Resilient guide core 2 is same together with nasal cavity guide wire 1 Step is inserted, resilient guide core 2 head end luminous time at the opening arrival choana that the J-shaped of nasal cavity guide wire 1 bends 12 Be easy at 1-2cm be observed by medical worker, the degree of depth of nasal cavity guide wire 1 be fine-tuned and angle make it is observed that light Reaching the brightest state, the opening of the J-shaped bending 12 of nasal cavity guide wire 1 now points to direction in oral cavity.Fixing nasal cavity is led Skirt 1 continues to insert resilient guide core 2, and under the light of resilient guide core 2 head end guides, medical worker can in oral cavity easily Capture resilient guide core 2, thus carry out subsequent operation.

As it is shown in figure 5, resilient guide core 2 head end arranges elastic ring 22, described elastic ring 22 can be accommodated in nasal cavity guide wire 1 Lead-in cavity 11 in, described elastic ring 22 go out lead-in cavity 11 after can Quick-return be circulus.Correspondingly, such as Fig. 6 institute Showing, described per os nasal cavity esophagus conduction device also includes that stretching into oropharynx position hook for per os takes the raker 3 of elastic ring 22, described hook Bar 3 one end arranges soft eave tile 31, and the other end arranges hand holding handle 32.

The nose bile duct being disposed to tackle under extreme case of elastic ring 22 and raker 3 guides operation, such as patient anatomy Exception, head and neck are tetanic.After resilient guide core 2 enters oral cavity, catch on by the raker 3 soft eave tile of head end 31 is stretched into oral cavity Elastic ring 22, direct oral cavity pull-out resilient guide core 2, guiding operation can be easily accomplished.

As shown in Figure 6, raker 3 closes on eave tile side and arranges luminous body 33, is set to the power supply that luminous body is powered in raker 3 And for controlling the switch of luminous body.

In like manner, the setting of luminous body 33 makes medical worker can be more easily accomplished above-mentioned behaviour when lighting condition improves Make.This raker 3 can be used as the spatula arranging light source if desired, increase operation possibility, after eave tile 31 now The raker 3 in portion should be set to flat platy structure.Certainly, photographic head can be set at luminous body 33 edge, by taking the photograph of coupling As above-mentioned data assisted by screen shooting gained image.

In order to further increase operability, can be provided for interim fixing at the tail end opening part of nasal cavity guide wire 1 The temporary securing mechanism of the resilient guide core 2 being embedded in lead-in cavity 11, guides resilient guide core 2 and nasal cavity when being used for needing The position of pipe 1 is temporarily fixing or gets loose, and facilitates medical worker to operate, is the most no longer addressed further under.

Further, in order to strengthen operability, resilient guide core 2 head end can arrange magnetic material or can be by magnetic material The metal attracted.Correspondingly, this utility model also include for through pars oralis pharyngis position for utilizing magnetic attracting force to attract And pull out described resilient guide core 2 head end pull bar, described in pull rod head end and arrange and can be attracted by resilient guide core 2 head end Metal or magnetic material.

During operation, when resilient guide core 2 head end arrives pars oralis pharyngis, head end is arranged by medical worker can be with resilient guide core What 2 head ends attracted each other structure pulls bar per os posting port bottleneck throat, under magnetic attracting force effect, resilient guide core 2 head end It is attracted to pull on the Attraction structure of club head, then pulls bar by operation and can easily resilient guide core 2 be pulled out outside oral cavity, Then next step operation being connected with nose bile duct tail end by resilient guide core 2 temporarily and being pulled to nasal cavity is carried out.

In a word: this utility model simple in construction, can be easily quick after inserting nose bile duct through gastroscope, safe and reliable will suffer from Person's per os nose bile duct is converted to per nasal nose bile duct, improves efficiency, decreases patient suffering, and simple in construction is with low cost, is worth At clinical expansion.

Claims (9)

1. a per os nasal cavity esophagus conduction device, is characterized in that: include in inserting nasopharynx tract external nares and choana Exit is set up soft quality nasal cavity guide wire (1) of passage and guides nose bile duct to enter the resilient guide core of nasal cavity for direct oral cavity (2)；Being provided for guiding the lead-in cavity (11) of resilient guide core (2) in described nasal cavity guide wire (1), described lead-in cavity (11) exists Nasal cavity guide wire (1) head end is set to J-shaped bending (12), and the two ends of described J-shaped bending (12) become 15 ° of 90 ° of angles；Described bullet Property guide and bend at forced section potential energy after core (2) stress, stress can Fast Restoration after disappearing；Described resilient guide core (2) cross section Matching with the cross section of lead-in cavity (11), it is interior along lead-in cavity (11) major axis that described resilient guide core (2) can insert lead-in cavity (11) Slide smoothly；Described resilient guide core (2) goes out to bend after J-shaped bends (12) the both sides near-end of (12) at J-shaped along lead-in cavity (11) Become 15 ° of 90 ° of angles.

The most according to claim 1, per os nasal cavity esophagus conduction device, is characterized in that: described resilient guide core (2) is light guide The straight-line profile that material is made leads core, and the lateral wall beyond described resilient guide core (2) head end 1-2cm is coated with reflectorized material；Institute Stating the setting of resilient guide core (2) tail end and can shirk light source (23), described light source (23) can connect with resilient guide core (2) tail end temporarily Connect.

The most according to claim 1, per os nasal cavity esophagus conduction device, is characterized in that: the head end of described resilient guide core (2) sets Putting for the interim guiding interface (21) connecting nose bile duct, described guiding interface (21) can be connected with nose bile duct tail end coupling.

The most according to claim 1, per os nasal cavity esophagus conduction device, is characterized in that: described resilient guide core (2) head end is arranged Elastic ring (22), described elastic ring (22) can be accommodated in the lead-in cavity (11) of nasal cavity guide wire (1), and described elastic ring (22) goes out Can Quick-return be circulus after lead-in cavity (11).

The most according to claim 1, per os nasal cavity esophagus conduction device, is characterized in that: described nasal cavity guide wire (1) is in lead-in cavity (11) nasal cavity guide wire (1) lateral surface of the opening side of head end J-shaped bending (12) is arranged and nasal cavity guide wire (1) major axis Parallel location line.

The most according to claim 4, per os nasal cavity esophagus conduction device, is characterized in that: also includes stretching into oropharynx position for per os Ticking the raker (3) of elastic ring (22), described raker (3) one end arranges soft eave tile (31), and the other end arranges hand holding handle (32).

The most according to claim 6, per os nasal cavity esophagus conduction device, is characterized in that: described raker (3) closes on eave tile side and sets Put luminous body (33), be set to power supply that luminous body powers in described raker (3) and for controlling the switch of luminous body.

The most according to claim 1, per os nasal cavity esophagus conduction device, is characterized in that: described resilient guide core (2) head end is arranged Magnetic material or the metal that can be attracted by magnetic material.

Per os nasal cavity esophagus conduction device the most according to claim 8, is characterized in that: also include for through pars oralis pharyngis position for Utilize magnetic attracting force to attract and pull out described resilient guide core (2) head end pull bar, described in pull that rod head end arranges can quilt The metal of resilient guide core (2) head end attraction or magnetic material.