CN106075687B

CN106075687B - A kind of double-lumen catheter

Info

Publication number: CN106075687B
Application number: CN201610540194.3A
Authority: CN
Inventors: 阮云; 李珠真
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-11
Filing date: 2016-07-11
Publication date: 2019-02-22
Anticipated expiration: 2036-07-11
Also published as: CN106075687A

Abstract

The invention discloses a kind of double-lumen catheters, including outer tube and bronchial catheter；Cuff is respectively arranged on the lateral wall of the end of the outer tube and bronchial catheter, the cuff is connected with gas tube；The outer tube is equipped with a partition extended along outer tube length direction, and outer tube is separated into left chamber and right chamber by partition, and the length of the bronchial catheter is greater than the length of outer tube, in the mobilizable left chamber or right chamber for being sheathed on the outer tube of bronchial catheter.Double-lumen catheter of the present invention is simple to operate, rotating tubular body is not necessarily to when intubation, successful intubation is high, and does not damage mucous membrane.

Description

A kind of double-lumen catheter

Technical field

The present invention relates to medical instruments fields, more particularly to a kind of double-lumen catheter.

Background technique

When lung isolation technology is thoracic surgery anesthesia, it is ensured that patient smoothly can ventilate and perform the operation the weight that can be gone on smoothly Want component part.In the prior art, double-lumen catheter is most important utensil, double-lumen catheter when implementing lung Sequestration Using it is most be exactly Luo Botexiao double lumen tube.Luo Botexiao double lumen tube is made of using medical plastic, Luo Botexiao double lumen tube Design principle are as follows: two chamber of a pipe, two sections of two openings, an opening are located at the tracheae section of conduit, and it is main that another opening is located at distal end Segmenta bronchopulmonalia is separately installed with air bag in tracheae and main bronchus position, and Luo Botexiao double lumen tube is divided to levorotation and two kinds of right type.

The main body of Luo Botexiao double lumen tube be it is arc-shaped, due to the physiological structure of person's windpipe and oral cavity, by two-chamber Pipe is properly inserted in place, needs that human body throat bend and main tracheae and bronchus is overcome to pitch road.Therefore bis- using Luo Botexiao When lumen, need first be sent into the end of double lumen tube from patient mouthful, after end is by glottis position in oral cavity, need to the left or to Right rotation two-chamber caliber (being approximately rotated by 90 °), then send pipe still further below, until two-chamber pipe end reaches left bronchus or right branch Tracheae.

The double-lumen catheter has the following problems when in use:

1, it is needed in catheterization procedure midway while carrying out sending the movement such as pipe and rotation, the angle of the depth and rotation of sending pipe is difficult To hold, operation difficulty is big, is difficult that pipe is once sent to accurate location；

2, during rotation, the side wall of pipe and end may damage tracheal wall mucous membrane.

Summary of the invention

In order to solve the above technical problems, the present invention provides a kind of double-lumen catheter, exist for solving existing trachea cannula Send Guan Shixu rotating tubular body, it is difficult to which accurate intubation in place, and injures big problem to person's windpipe mucous membrane.

The present invention is implemented as follows:

A kind of double-lumen catheter, the double-lumen catheter include outer tube and bronchial catheter；

Cuff is respectively arranged on the lateral wall of the end of the outer tube and bronchial catheter, the cuff is connected with inflation Pipe；

The outer tube is equipped with a partition extended along outer tube length direction, and outer tube is separated into left chamber and the right side by partition Chamber, the length of the bronchial catheter are greater than the length of outer tube, the mobilizable left chamber for being sheathed on the outer tube of bronchial catheter Or in right chamber.

Further, the outer tube is curve bend, and the bronchial catheter is elastic catheter, the end of bronchial catheter To edgewise bend.

Further, the end of the partition is recessed in outer pipe end, and the distance that partition end inside contracts is greater than or equal to The length of bronchial catheter end bend section.

Further, the angle of the bending direction of the bending direction and bronchial catheter of the outer tube is 70 °~110 °.

Further, the bronchial catheter end to the angle of edgewise bend be 10 °~20 ° or 35 °~60 °.

Further, the top of the left chamber or right chamber of the outer tube is equipped with the connector extended to the side surface direction of outer tube.

Further, further include fixing clasp for fixing the relative position of bronchial catheter and outer tube.

Further, the outer tube is round tube body, and the section of the left chamber and right chamber is semicircle, and the bronchus is led Pipe is semicircle conduit.

Further, the end of the bronchial catheter is provided with venthole corresponding with right superior lobar bronchus.

Further, the side wall of the outer tube and bronchial catheter is equipped with scale.

The invention has the benefit that being different from the prior art, double-lumen catheter of the present invention includes outer tube and bronchus Conduit, outer tube are double lumen tube, in mobilizable one cavity of bronchial catheter being sheathed in outer tube of bronchial catheter, are being used When, first bronchial catheter is lifted up, receives its end to outer tube, then outer pipe end is inserted into close to after knuckle solid It is fixed, bronchial catheter is pushed still further below, its end is made to enter left bronchus or right bronchus.The outer tube and branch gas of this two-chamber tracheae Pipe conduit is connected by the way of socket, when in use can be inserted into outer tube with bronchial catheter without rotating tubular body predetermined Position, simple to operate, successful intubation is high, and because being not necessarily to rotating tubular body, to tunica mucosa tracheae when significantly reducing intubation Damage.

Detailed description of the invention

Fig. 1 is the schematic perspective view of right type double-lumen catheter in the specific embodiment of the invention；

Fig. 2 is the solid after the bronchial catheter of right type double-lumen catheter in the specific embodiment of the invention mentions upwards Structural schematic diagram；

Fig. 3 be Fig. 1 in A-A to sectional view；

Fig. 4 a is the transverse cross-sectional view of double-lumen catheter in an embodiment；

Fig. 4 b is the transverse cross-sectional view of double-lumen catheter in an embodiment；

Fig. 4 c is the transverse cross-sectional view of double-lumen catheter in an embodiment；

Fig. 4 d is the transverse cross-sectional view of double-lumen catheter in an embodiment；

Fig. 5 is the schematic diagram of double-lumen catheter when in use in an embodiment；

Fig. 6 is the partial enlarged view of circle B in Fig. 2；

Fig. 7 is the schematic perspective view of levorotation double-lumen catheter.

Label declaration:

1, outer tube；2, bronchial catheter；11, partition；12, right chamber；13, left chamber；

14, cuff；15, connector；16, accommodating cavity；21, cuff；22, connector；

23, venthole；31, main tracheae；32, right bronchus；33, knuckle；

34, right superior lobar bronchus mouth；141, gas tube；211, gas tube.

Specific embodiment

In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment And attached drawing is cooperated to be explained in detail.

Embodiment of the present invention, a kind of double-lumen catheter, (this when which is for General anesthesia When patient can not autonomous respiration), cooperate Use of respirator, for pulmo isolation (only left pulmonary ventilation or right lung ventilation).This pair Levorotation of the chamber tracheal catheter point for left pulmonary ventilation and the right type two types for right lung ventilation, and two types have confession All ages and classes people uses, multiple sizes of different length and caliber.

Please referring to Fig. 1 is to Fig. 3, and right type double-lumen catheter, which includes that outer tube 1 and bronchus are led The material of pipe 2, the outer tube 1 and bronchial catheter 2 is medical plastic, such as PVC, silica gel that PVC, silica gel or steel wire are strengthened Deng.The outer tube 1 is double lumen tube, and the middle part of outer tube 1 is provided with the partition 11 extended along outer tube length direction, and partition 11 will be described Outer tube 1 is separated into right chamber 12 and 13 two cavitys of left chamber, is respectively arranged on the lateral wall of the end of the outer tube 1 inflatable Cuff 14 is respectively arranged with inflatable cuff 21 on the lateral wall of the end of bronchial catheter 2, connects in cuff 14 useful In being connected with the gas tube 211 for inflating to air bag on the gas tube 141 inflated to air bag, cuff 21.The bronchus is led The length of pipe 1 is greater than the length of outer tube 1, in the bronchial catheter 2 right chamber 12 movable up and down for being socketed on outer tube 1, The top of mesobronchus conduit 2 is revealed to outside right chamber 12, and bronchial catheter 2 is equipped with the connector 22 connect with breathing circuit and (passes through breathing Circuit is connect with ventilator), the top of left chamber 13 is equipped with the connector 15 connecting with breathing circuit.As shown in Fig. 2, when being lifted up When bronchial catheter 2, end is just reduced in right chamber 12；As shown in Figure 1, when pushing down on bronchial catheter, end just from Outer pipe end is stretched out.

It please refers to Fig. 6 when in use, first bounces back to the end of bronchial catheter 2 in outer tube 1, by 1 end bead of outer tube Chamber is sent into, and stops, and send bronchial catheter 2 downwards when 1 end of outer tube is close to 33 position of knuckle, its end is made to enter right branch gas In pipe 32, when bronchial catheter 2 in place after, by cuff 21 of the gas tube 211 and 141 on outer tube 1 and bronchial catheter 2 and 14 inflations, the cuff 21 on bronchial catheter 2 seals bronchus 32 at this time, and the air bag 14 on outer tube 1 seals main tracheae 31. Confirmed by auscultation with stethoscope or branchofiberoscope and connect ventilator through breathing circuit after position is accurate, then pressed from both sides and close left pipe (folder Closing can be realized by a connection accessory having had at present), so that it may realize right lung one-lung ventilation.Similarly if you need to left pulmonary ventilation Folder closes right side conduit after insertion levorotation conduit.

Compared to existing double-lumen catheter, the double-lumen catheter in the technical program when in use, without rotation Outer tube and bronchial catheter can be inserted into predetermined position by tube body, and simple to operate, successful intubation is high, and without rotation Tube body, damage when significantly reducing intubation to tunica mucosa tracheae.

Preferably, as depicted in figs. 1 and 2, for the ease of intubation, the distal end faces of the outer tube 1 and bronchial catheter 2 are equal It is arranged to angled end-face, and is additionally provided with the venthole 23 ventilated to human body superior lobe of right lung in the end of bronchial catheter 2.

Since the throat physiological bending direction of human body is different from tracheae bifurcated direction, for the ease of outer tube is fed through Close to knuckle position, and improves and enter bronchial accuracy when sending under bronchus.In the present embodiment, by the outer tube The bend pipe of 1 setting camber, carries out plastotype for 2 end of bronchial catheter, makes the end of bronchial catheter 2 to lateral bending (to the right lateral bending of human body).Rotation angle when before use, pre-adjusting bronchial catheter 2 and the socket of outer tube 1, makes outer tube 1 bending direction and the angle of bending direction of bronchial catheter 2 and the bending direction of human body throat bend and intratracheal branch gas The angle of the bending direction of pipe is suitable.Preferably, the angle of the bending direction of the bending direction and bronchial catheter of the outer tube It is 90 °.I.e. outer tube 1 is bent along human body front-rear direction, and bronchial catheter 2 is bent along human body right direction, and the bend pipe of arc is just It is reached by the bend of throat close to 33 position of knuckle in outer tube 1, and the lateral bend to the right of bronchial catheter 2, make to send branch downwards When tracheal catheter 2, the bending section of 2 end of bronchial catheter is just inserted into bronchus 32 obliquely.In other embodiments, The angle of the bending direction of the bending direction and bronchial catheter 2 of the outer tube 1 is the other values in 70 °~110 °.

In the present embodiment, the curved angle in side is 15 ° to the left for 2 end of bronchial catheter, and in other realities Apply in mode, 2 end of bronchial catheter to the angle of edgewise bend can be other values within the scope of 10 °~20 °.Such as Shown in Fig. 1, in right type double-lumen catheter, the bronchial catheter 2 to the angle of edgewise bend be preferably 15 °, and one In a little embodiments, the bronchial catheter 2 of right type double-lumen catheter to the angle of edgewise bend can be 10 °~20 ° ranges Interior other values.

Fig. 1 and Fig. 2 are please referred to, in the present embodiment, the cuff 21 of 2 end of bronchial catheter is oblique air bag, The trend of air bag moves towards oblique (nonopiate) with 2 end of bronchial catheter.As shown in figure 5, right superior lobar bronchus opening 34 It is close apart from trachea carina 33, in order to make cuff 21 be not exposed from trachea carina 33, cuff 21 must be made as close as possible to distal end, and The air bag of right superior lobar bronchus mouth this side obtain as far as possible to side opening empty between must lean on toward proximal end, therefore just formed this slanting Airbag design.

Referring to Fig. 3, in the present embodiment, the outer tube 1 is preferably that outer ring is circular conduit, that is, round tube, it is described every It is semicircular right chamber 12 and left chamber 13 that outer tube is separated into two sections by plate 11, and the bronchial catheter 2 is circular pipe.Phase For rectangular or other shapes pipelines, circular outer tube can reduce caliber size, and circular outer pipe 1 is relative to other shapes Pipeline, can reduce the damage of endotracheal mucosal.

Fig. 4 a is please referred to, in some embodiments, the outer ring is circular conduit, and the bronchial catheter 2 half Circular pipe.Preferably, in this embodiment, the end of the bronchial catheter and top are set to circle, and Middle section in right chamber 12 is semicircle conduit.The tip designs of the bronchial catheter are circle, and appearance is all that arc-shaped does not have More sharp angle can prevent damage of 2 end of bronchial catheter to human body mucous membrane；And the middle section of the bronchial catheter 2 ( Part in right chamber 12), cross sectional shape is suitable with the cross sectional shape of right chamber, can prevent catheterization procedure mesobronchus conduit with Outer tube relative rotation guarantees the accuracy of bronchial catheter intubation.

Fig. 4 b is please referred to, in other embodiments, the outer tube is ellipse, and the width of outer tube left and right directions is greater than Width in the front-back direction, the partition 11 are symmetrically disposed on the middle part of outer tube, and outer tube 1 is divided into symmetrical left chamber 12 and right chamber 13, and it is D font that the bronchial catheter 2, which is cross section, area is greater than the semicircle of equal radiuses.Preferably In, oval outer tube more meets person's windpipe dissection (left and right diameter is greater than anteroposterior diameter), while can make full use of the sky in outer tube Between；Opposite with circular outer pipe, in identical ventilatory capacity, oval outer tube can accomplish smaller size.

Difference with Fig. 4 b embodiment is, in the embodiment shown in Fig. 4 c, the partition 11 is simultaneously asymmetric It is set in outer tube 1, but is disposed in proximity to left chamber direction, to make the sectional area of right chamber 12 slightly larger than left chamber 13, prop up in this way The sectional area of tracheal catheter 2 can be accomplished identical as the sectional area of right chamber 13.

Fig. 4 d is please referred to, in some embodiments, the cross section of the partition 11 is arc panel, and partition 11 is by outer tube 1 It is separated into the left chamber 13 that cross section is falcate and the right chamber 12 that cross section is approximate ellipsoidal, and the bronchial catheter 2 cross sectional shape is also approximate ellipsoidal compatible with right chamber 12.Preferably, the sectional area of the right chamber 12 is slightly larger than in a left side The sectional area of chamber 13, to make the sectional area of bronchial catheter 2 equal to the sectional area of left chamber 13.The structure makes in outer tube 1 Space be fully used, so that the outer diameter of outer tube 1 be allow to accomplish minimum.

Referring to Fig. 6, in the present embodiment, 11 end of partition of the outer tube 1 is recessed in outer tube 1, it is described interior Contracting refer to the end of partition and not up to outer tube end (i.e. partition 11 there is no whole outer tube 1 be all separated into left chamber and right chamber, And just no longer separate in the end of outer tube), it is not divided into left chamber and right chamber in the end of outer tube 1, to deposit in the end of outer tube 1 In section accommodating cavity 16 identical with outer tube section, the length of the accommodating cavity 16 is not less than 2 guiding-tube bend section of bronchus Length.Therefore when mentioning bronchial catheter 2 upwards, the end of bronchial catheter 2 is just received completely to the accommodating cavity of outer pipe end In 16.Relative to the not set accommodating cavity, bronchial catheter end is directly received to right chamber body, in upward revenue and expenditure tracheal catheter When with sending bronchial catheter downwards, the inner wall frictional force of bronchial catheter outer wall and right chamber is larger, and bronchial catheter is in right chamber Sliding has some setbacks, and is not easy to operate.It is provided with accommodating cavity 16 in the embodiment, it is curved to substantially reduce 2 end of bronchial catheter Frictional force between tune outer wall and the inner wall of right chamber 12 is convenient for so that bronchial catheter 2 be made smooth can to slide in right chamber Control pushes up the dynamics and speed of bronchial catheter, to ensure that the smoothness of intubation.

In some embodiments, the right chamber and the connector 15 of breathing connection are not tilted to side and are stretched out, but straight Connect the top for being set to right chamber.Fig. 1 to Fig. 2 is please referred to, in the present embodiment, the top of the left chamber 13 of the outer tube 1 is arranged The side surface direction of oriented outer tube 1 extend for connecting the connector 15 of breathing circuit, since the connector 15 of left chamber 13 is to outer tube Side stretch out, to concede sufficient space for the bronchial catheter 2 that is socketed in right chamber, enable bronchial catheter and right chamber Enough it is located on same vertical plane, convenient for operation bronchial catheter, while is also beneficial to the smoothness of bronchial catheter sliding.

Please refer to Fig. 7.For in another embodiment, the structural schematic diagram of levorotation double-lumen catheter is and above-described Right type double-lumen catheter the difference is that, the bronchial catheter of levorotation double-lumen catheter is mobilizable to be socketed on outer tube Left chamber in and the angle that is bent outwardly of bronchial catheter end it is different, the bending angle is mainly by human body left bronchus It is determined with right bronchial anatomical structure, in levorotation double-lumen catheter, the bronchial catheter is to the angle of edgewise bend Preferably 45 ° of degree, in other embodiments, the bending angle may be the other values between 35 °~60 °, left side branch Tracheae end does not have side stomata, therefore air bag and bronchus are orthogonal type.The working principle and use of levorotation double-lumen catheter Method is identical as right type double-lumen catheter.

For the ease of the relative position of fixed outer tube and bronchial catheter, prevent in surgical procedure outer tube and bronchial catheter Relative position change, in some embodiments, the double-lumen catheter further comprises one for fixing bronchus The fixing clasp of the relative position of conduit and outer tube.A step is provided on the inner sidewall of the fixing clasp, when fixed, fixing card Ring set is set to left chamber top, and the step arcuate surface on fixing clasp inner sidewall is opposite with the lateral surface of bronchial catheter, step Inner concave is opposite with the lateral wall of left chamber.

And for the ease of control outer tube and bronchial catheter depth, in one embodiment, in the outer tube and branch gas Scale is respectively provided on the side wall of pipe conduit.

For convenient for recognizing bronchial cuff under branchofiberoscope, left and right bronchial cuff is both designed as blue.

For convenient for perceiving each gasbag pressure, each air bag inflating port is additionally provided with the ballonet being connected with each cuff, simultaneously Equipped with a unidirectional charging valve.

To save space, the inflation tube portion for connecting each cuff is walked in tube wall.

The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims

1. a kind of double-lumen catheter, which is characterized in that including outer tube and bronchial catheter；

Cuff is respectively arranged on the lateral wall of the end of the outer tube and bronchial catheter, the cuff is connected with gas tube；

The outer tube is equipped with a partition extended along outer tube length direction, and outer tube is separated into left chamber and right chamber by partition, institute The length for stating bronchial catheter is greater than the length of outer tube, the mobilizable left chamber or right chamber for being sheathed on the outer tube of bronchial catheter It is interior；

The outer tube is curve bend, and the bronchial catheter is elastic catheter, and the end of bronchial catheter is to edgewise bend, institute It states that bronchial catheter end is recessed in the outer tube or the outer pipe end is stretched out in the bronchial catheter end, makes described The angle of the bending direction of the bending direction and bronchial catheter of outer tube is 70 °~110 °.

2. double-lumen catheter according to claim 1, which is characterized in that the end of the partition is recessed in outer pipe end Interior, the distance that partition end inside contracts is greater than or equal to the length of bronchial catheter end bend section.

3. double-lumen catheter according to claim 1, which is characterized in that the bronchial catheter end is to edgewise bend Angle be 10 °~20 ° or 35 °~60 °.

4. double-lumen catheter according to claim 1, which is characterized in that the left chamber of the outer tube or the top of right chamber are set The connector that the side surface direction of oriented outer tube is extended.

5. double-lumen catheter according to claim 1, which is characterized in that further include for fixing bronchial catheter and outer The fixing clasp of the relative position of pipe.

6. double-lumen catheter according to claim 1, which is characterized in that the outer tube is round tube body, the left chamber Section with right chamber is semicircle, and the bronchial catheter is semicircle conduit.

7. double-lumen catheter according to claim 1, which is characterized in that the end of the bronchial catheter be provided with The corresponding venthole of right superior lobar bronchus.

8. double-lumen catheter according to claim 1, which is characterized in that on the side wall of the outer tube and bronchial catheter Equipped with scale.