CN217886755U

CN217886755U - Flushing catheter

Info

Publication number: CN217886755U
Application number: CN202221422106.7U
Authority: CN
Inventors: 张锡朋; 孙轶; 江佩师; 张智春
Original assignee: Tianjin People Hospital
Current assignee: Tianjin People Hospital
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-25
Anticipated expiration: 2032-06-08

Abstract

The utility model belongs to the technical field of medical instrument, especially, relate to a washing catheter, include: the catheter comprises a catheter body and a catheter body, wherein the catheter body comprises a catheter wall, a hollow cavity and an embedded channel which is formed on the catheter wall and communicated with the hollow cavity, the two ends of the catheter body are respectively an operating end and a functional end, the functional end close to the catheter wall is provided with a plurality of through holes, and the outer side of the catheter wall is also provided with a catheter positioning structure; an irrigation tube extending into the hollow cavity through the insertion channel; the guide wire pipe extends into the operation end of the catheter body and extends out of the function end of the catheter body, and a guide wire pipe positioning structure is arranged on the guide wire pipe; the switching structure, it includes with the operation end demountable installation's of pipe body adapter and honeycomb duct, the pencil that adds of assembly on the adapter, the pencil that adds the pencil adds the medicine end and stretches into within the well cavity. The irrigation catheter can be used independently and in combination, integrates the functions of catheter guiding, drainage, irrigation and midway administration, and is suitable for wide popularization in the field.

Description

Flushing catheter

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a washing catheter.

Background

Postoperative anastomotic fistula is one of common and serious complications after intestinal surgery, researches show that continuous flushing of anastomotic stoma by using a flushing catheter has a good treatment effect on treatment of anastomotic leakage, but the flushing catheter is more expensive than a single-tube drainage tube, economic burden of a patient is increased by using the flushing catheter in a preventive manner, the single-tube drainage tube is often adopted for patients after colorectal surgery in practice considering factors such as cost at present, and the single-tube drainage tube cannot be replaced by the flushing catheter under the non-operative condition after the anastomotic leakage occurs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a washing catheter which integrates the functions of guiding, placing the catheter, draining, washing and midway administration.

The utility model discloses a technical scheme who takes for solving this problem is:

an irrigation catheter comprising:

the catheter comprises a catheter body and a catheter body, wherein the catheter body comprises a catheter wall, a hollow cavity and an embedded channel which is formed on the catheter wall and communicated with the hollow cavity, the two ends of the catheter body are respectively an operating end and a functional end, the functional end close to the catheter wall is provided with a plurality of through holes, and the outer side of the catheter wall is also provided with a catheter positioning structure;

a flush tube extending into the hollow cavity through the insertion passage;

the guide wire pipe extends into the operation end of the guide pipe body and extends out of the function end of the guide pipe body, and a guide wire pipe positioning structure is arranged on the guide wire pipe;

the switching structure, it includes with the operation end demountable installation's of pipe body adapter and honeycomb duct, the pencil that adds of assembly on the adapter, the pencil that adds the pencil adds the medicine end and stretches into within the well cavity.

Preferably, the pipe wall is of a sectional type structure and comprises a main pipe section, a connecting pipe section, an operating pipe section and a threaded pipe section which are sequentially connected, at least one embedding channel is obliquely embedded into the connecting pipe section, and the outer surface of the operating pipe section is composed of a plurality of edge surfaces.

Further preferably, the adapter is in threaded connection with the threaded pipe section, the flow guide pipe is provided with a flow adjusting structure, and the end parts of the flushing pipe and the dosing pipe are respectively provided with a cap plug.

Further preferably, the through holes are at least two rows and are respectively and uniformly arranged along the axial direction of the pipe wall, and at least one row of the through holes are obliquely arranged towards the direction deviating from the functional end.

Preferably, the flushing pipe comprises a first flushing pipe section tightly penetrating through the embedded channel and a second flushing pipe section tightly attached to the inner wall of the main pipe section, the side wall of the second flushing pipe section is provided with a plurality of flushing holes, the flushing holes correspond to the positions of the through holes close to the second flushing pipe section, and the through holes close to the second flushing pipe section are obliquely arranged towards the direction departing from the functional end.

Further preferably, the functional end of the catheter body is provided with an end head, the end head is in a truncated cone shape or a hemispherical shape with an opening in the middle, and the end head is provided with a developing ring.

Preferably, the outer wall of the pipe wall is evenly provided with guide pipe scale marks along the axial direction, and the guide pipe scale marks are provided with a guide pipe developing line at intervals.

Further preferably, the catheter positioning structure is located at the proximal functional end of the catheter wall, the catheter positioning structure is a first positioning balloon, and the first positioning balloon is oval or double-concave when expanded.

Further preferably, the guide wire tube is a hollow tube structure, the guide wire tube positioning structure is a second positioning bag arranged at the end part of the guide wire tube, and the second positioning bag is oval or double-concave when expanding.

Further preferably, the outer wall of the silk guide pipe is evenly provided with silk guide pipe scale marks along the axial direction, and the silk guide pipe scale marks are provided with a silk guide pipe developing line at intervals.

The utility model has the advantages and positive effects that:

1. the utility model discloses in, the pipe body can use alone or with the cooperation of adapter structure. When the catheter is used independently, the body fluid at the focus part can be directly drained to the outside of the body through the functional end, the through hole and the middle cavity of the catheter body, and the operation is convenient; when the catheter body is matched with the switching structure for use, the guide pipe on the switching structure can continue to play a drainage function, and the medicine can be injected into the focus part through the medicine adding pipe on the switching structure, so that the operation is convenient and fast.

2. The utility model discloses in, at catheter body drainage in-process, when needs wash or because of clot, pus etc. block up the through-hole, can connect flushing arrangement on the flushing pipe, the flush fluid can be washed to through-hole department through the flushing pipe, on the one hand, can play the effect of mediation through-hole, and on the other hand still can play the effect of washing the focus.

3. The utility model discloses in, the pipe wall is the sectional type structure, and the connection pipeline section is external structure, can connect with multiple external function pipe such as well communicating flushing pipe of cavity, suction tube, realizes that a chamber is multi-functional, does benefit to the pipe volume of putting that reduces the patient, and the surface of operation pipeline section is prismatic faceted pebble structure, can cooperate with external centre gripping fixed knot structure, realizes the pipe body in external firm location, prevents to take place circumstances such as rotating, aversion.

4. The utility model discloses in, the through-hole orientation that is close to mutually with the flushing pipe deviates from function end direction slope setting, when washing, through the washing direction of the flush fluid that the through-hole outwards jetted out for deviating from function end direction, the foreign matter that is favorable to the focus position is by the operation end direction of washing the pipe body, prevents that the foreign matter from being washed the focus depths, can play the effect of wasing the focus.

5. The utility model discloses in, the through-hole that is close to the dosing pipe sets up towards function end direction slope, and when the injection liquid medicine, the medicine is through adding medicine hole, the direct outside ejection of through-hole, and the direction that jets out of medicine is towards function end direction, is favorable to the medicine to arrive the focus depths.

6. The utility model discloses in, evenly carve along its axial on the outer wall of pipe wall and be equipped with the pipe scale mark, can audio-visual observation the depth of insertion of pipe body, one section distance at every interval of pipe scale mark is provided with a pipe development line, and accurate development under X-ray can audio-visual observation the depth of insertion of pipe body with insert the trend.

7. The utility model discloses in, first location bag can expand to pipe body exterior space after aerifing/water, is oval or two spill when first location bag expands, compares in ordinary annular utricule, and special-shaped location bag can play more stable location effect, can prevent that the pipe body from taking place axial displacement and the rotation displacement of circumference around, and pipe body location is fixed more reliably.

8. The utility model discloses in, the guide wire pipe can play the guide effect, during the use, inserts the single tube drainage tube that needs the replacement with the guide wire pipe, to second location intracapsular injected water or gas to fixed second location bag is at internal spatial position, and single tube drainage tube is extracted to the back, along guide wire pipe insertion pipe body, convenient operation.

9. The utility model discloses in, for oval or two spill when the second location bag expands, compare in ordinary annular utricule, more stable location effect can be played to the location bag of dysmorphism, can prevent that the silk guide pipe from taking place the axial displacement around and the rotation displacement of circumference, and the silk guide pipe location is fixed more reliably, not only does benefit to the accuracy follow-up of pipe body, can guarantee to follow-up the position unanimity when changing different pipe bodies moreover.

10. The utility model discloses in, evenly carve along its axial on the outer wall of seal wire pipe and be equipped with seal wire pipe scale mark, can audio-visual observation seal wire pipe's the depth of insertion, seal wire pipe scale mark one section distance at every interval is provided with a seal wire pipe development line, and accurate development under the X-ray can audio-visual observation seal wire pipe's the depth of insertion and insert the trend.

Drawings

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and therefore should not be considered as limiting the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein only, and are not necessarily drawn to scale.

FIG. 1 is a schematic view showing the structure of a catheter body in an assembled state with an irrigation tube and a transit structure in example 1;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a front view of the adapter structure with the flow regulating structure;

FIG. 5 is a schematic half-section view of example 3;

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a schematic view of the catheter body and the irrigation pipe in an assembled state in example 3;

fig. 8 is a schematic structural view of an adapter structure in embodiment 3;

FIG. 9 is a half-sectional view showing the assembled state of the catheter body with the flush tube and the guidewire tube in example 3;

FIG. 10 is a front view of FIG. 9;

FIG. 11 is a schematic view showing the structure of the other angle state of embodiment 3;

FIG. 12 is a schematic half-section view of FIG. 11;

FIG. 13 is a schematic structural diagram of the adapting structure shown in FIG. 11;

FIG. 14 is a schematic view of the structure of FIG. 11 at another angular position;

FIG. 15 is a schematic half-section view of FIG. 14;

FIG. 16 is a front view in half section of embodiment 4;

FIG. 17 is a schematic view of the catheter body in the assembled state with the irrigation tube and the adapter structure in example 5;

FIG. 18 is an enlarged view of the portion A of FIG. 17;

FIG. 19 is a schematic view showing the structure of a guidewire tube in example 7;

fig. 20 is an enlarged view of the portion B of fig. 19.

In the figure: 1. the medical device comprises a tube wall, 101, a main tube section, 102, a connecting tube section, 103, an operation tube section, 104, a threaded tube section, 2, an embedding channel, 3, a through hole, 4, a catheter positioning structure, 5, a flushing tube, 501, a first flushing tube section, 502, a second flushing tube section, 6, a guide wire tube, 601, a guide wire tube positioning structure, 7, an adapter, 8, a guide tube, 9, a dosing tube, 10, a flow regulating structure, 11, a cap plug, 12, a flushing hole, 13, a tip, 14, a developing ring, 15, a catheter scale mark, 16, a catheter development line, 17, a guide wire tube scale mark and 18, and a catheter development line.

Detailed Description

First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in the embodiments described herein or shown or implicit in the drawings or any single feature or features shown or implicit in the drawings may still be any combination or subtraction between these features (or their equivalents) may continue to provide yet further embodiments of the present invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating the inside of two elements or for interacting with each other, unless otherwise specifically defined, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances. The present invention will be described in detail with reference to the accompanying drawings.

Example 1:

an irrigation catheter comprising: the catheter comprises a catheter body, a catheter body and a catheter positioning structure, wherein the catheter body comprises a catheter wall 1, a hollow cavity and an embedded channel 2 formed on the catheter wall 1 and communicated with the hollow cavity, the two ends of the catheter body are respectively an operation end and a function end, as shown in fig. 1, the upper end and the lower end of the catheter body are respectively the operation end and the function end, a plurality of through holes 3 are formed in the functional end, close to the catheter wall 1, of the catheter body, and a catheter positioning structure 4 is further arranged on the outer side of the catheter wall 1; a flushing pipe 5, which extends into the hollow cavity through the insertion passage 2; the guide wire pipe 6 extends into the operation end of the guide pipe body and extends out of the function end of the guide pipe body, and a guide wire pipe positioning structure 601 is arranged on the guide wire pipe 6; switching structure, its include with the operation end demountable installation's of pipe body adapter 7 and the honeycomb duct 8 of assembly on adapter 7, add pencil 9 add the pencil end and stretch into within the well cavity.

In this embodiment, guide wire pipe 6 can play the guide effect, and after guide wire pipe arrived patient's focus position, the function end of pipe body can follow to focus position and wash, drainage etc. wherein: be equipped with seal wire pipe location structure 601 on the seal wire pipe 6, when seal wire pipe reachd assigned position department, can realize the location of seal wire pipe position through seal wire pipe location structure 601, prevent to take place aversion, skew condition, not only do benefit to the accuracy follow-up of pipe body, can guarantee to follow-up the position unanimity when changing different pipe bodies moreover.

The catheter body of this embodiment may be used alone or in combination with an adapter structure. When the catheter is independently applied, the negative pressure drainage equipment is arranged at the operation end of the catheter body, so that the body fluid at the focus part can be drained to the outside of the body through the functional end, the through hole 3 and the hollow cavity of the catheter body; in the drainage process of the catheter body, when the through hole needs to be flushed or blocked by clots, pus and the like, flushing equipment can be connected to the flushing pipe, and flushing fluid can flush the through hole through the flushing pipe, so that the through hole can be dredged, and a focus can be cleaned; when the catheter body is matched with the switching structure for use, the guide wire tube is taken out when the catheter body reaches the designated position, the switching structure is installed at the operation end of the catheter body, the guide tube on the switching structure can be connected with negative pressure drainage equipment to continue playing a drainage function, and medicines can be injected into a focus part through the medicine adding tube on the switching structure, so that the catheter is convenient and fast.

The irrigation catheter integrates the functions of guiding catheter placement, drainage, irrigation and midway administration, and is suitable for wide popularization in the field.

Further, it is also contemplated in the present embodiment that the pipe wall 1 is a segmented structure, which includes a main pipe segment 101, a connecting pipe segment 102, an operating pipe segment 103, and a threaded pipe segment 104 connected in sequence, wherein: connecting pipe section 102 is external structure, and its quantity can be one or more, and the slope embedding has at least one embedding passageway 2 on connecting pipe section 102, through embedding passageway joinable with well cavity multiple external function pipe such as communicating flushing pipe, suction tube, realize that a chamber is multi-functional, does benefit to the pipe volume of putting that reduces the patient, the surface of operation pipe section 103 comprises a plurality of faceted pebble, and the surface of operation pipe section 103 is prismatic faceted pebble structure, and the operation pipe section can cooperate with external centre gripping fixed knot structure, realizes the pipe body at external firm location, prevents the circumstances such as rotating, aversion. It should be noted that, in order to further increase the friction force of the edge surface and further improve the clamping stability, a plurality of convex points or concave points may be further disposed on the surface of the edge surface.

It should be noted that the main body pipe segment 101, the connection pipe segment 102, the operation pipe segment 103, and the threaded pipe segment 104 may be assembled integrally or assembled, and the connection manner of the assembled assembly may be, but not limited to, screwing, sleeving, and the like, and the assembly may be performed according to actual requirements, so as to improve the practicability in the use process.

Example 2:

embodiment 2 of the present invention is further improved on the basis of embodiment 1 so as to fully exert the technical advantages of the present invention, and this will be exemplified below.

For example: the connecting pipe section 102, the main pipe section 101 and the operation pipe section 103 are assembled in an assembling mode respectively, the connecting pipe section 102 can rotate on the main pipe section 101 and the operation pipe section 103, the connecting pipe section 102 can drive the embedding channel 2 to rotate when rotating, and the flushing end of the flushing pipe can face through holes 3 in different positions, so that the through holes in different positions on the catheter body can be flushed and dredged by only one flushing pipe, the pipe is multifunctional, multiple flushing pipes are not needed, and the requirement that enough operable space exists in a hollow cavity is met.

Furthermore, it can be considered in embodiment 1 or 2 that the adapter 7 and the threaded pipe segment 104 are connected by threads, so that the installation and the disassembly are convenient. The flow regulating structure 10 is arranged on the flow guide pipe 8 and can be used for controlling the flow of the flow guide pipe, the cap plugs 11 are respectively arranged at the end parts of the flushing pipe 5 and the dosing pipe 9, and the cap plugs 11 can be used for sealing the flushing pipe and the dosing pipe 9.

Furthermore, it is also considered in embodiment 1 or 2 that the through holes 3 are at least two rows, and are respectively and uniformly arranged along the axial direction of the pipe wall 1, wherein at least one row of the through holes 3 is obliquely arranged towards the direction away from the functional end. Taking embodiment 1 or 2 as an example, as shown in fig. 1-6, four rows of through holes are arranged at the functional end near the main body pipe section 101, the number of the through holes in each row of through holes is 6, the through holes close to the flushing pipe are obliquely arranged towards the direction away from the functional end, when flushing is performed, the flushing direction of the flushing liquid ejected outwards through the through holes is towards the direction away from the functional end, which is beneficial to the direction of the operation end of the catheter body for flushing the foreign body at the focus part, so that the foreign body is prevented from being flushed to the deep part of the focus, and the function of cleaning the focus can be achieved.

Example 3:

embodiment 3 of the present invention is further improved on the basis of embodiment 1 or 2 so as to fully exert the technical advantages of the present invention, and this will be exemplified below.

For example: as shown in fig. 5-6, the flushing pipe 5 includes a first flushing pipe section 501 tightly penetrating the insertion channel 2 and a second flushing pipe section 502 tightly adhered to the inner wall of the main pipe section 101, the sidewall of the second flushing pipe section 502 is provided with a plurality of flushing holes 12, the flushing holes 12 correspond to the positions of the through holes 3 close to the second flushing pipe section 502, the through holes 3 close to the second flushing pipe section 502 are obliquely arranged towards the direction away from the functional end, when flushing, flushing liquid is directly ejected outwards through the flushing holes 12 and the through holes 3, on one hand, the through holes can be directly dredged, on the other hand, the flushing direction of the flushing liquid is towards the direction away from the functional end, which is beneficial for the foreign body at the focus position to be flushed by the operation end direction of the catheter body, so as to prevent the foreign body from being flushed to the deep focus, and to play a role in cleaning the focus.

It should be noted that, in order to improve the flushing effect, a plurality of embedding channels 2 may be obliquely embedded in the connecting pipe section 102, and a plurality of flushing pipes flush synchronously, thereby greatly improving the flushing effect; the assembling mode of the connecting pipe section 102, the main body pipe section 101 and the operation pipe section 103 in the embodiment 2 can also be adopted, when the connecting pipe section 102 rotates, the embedding channel 2 can be driven to rotate, the flushing holes 12 of the flushing pipes can face to the through holes 3 at different positions (except for the through holes close to the dosing pipes), so that the flushing in different directions can be realized by only one flushing pipe, the flushing pipe is multipurpose, a plurality of flushing pipes are not required to be equipped, and the requirement that enough operable space exists in a hollow cavity is met.

Example 4:

embodiment 4 of the present invention is further improved on the basis of

embodiment

1 or 2 or 3 so as to fully exert the technical advantages of the present invention, which will be exemplified below.

For example: as shown in fig. 16, it adds the medicine hole to have seted up a plurality of on the lateral wall of medicine tube, it is corresponding with the through-hole 3 positions that are close to the medicine tube to add the medicine hole, and the through-hole 3 that is close to the medicine tube sets up towards function end direction slope, and when the injection liquid medicine, the medicine is through adding medicine hole 901, through-hole 3 direct outwards jets out, can directly dredge the through-hole on the one hand, and the direction of jetting out of on the other hand medicine is towards function end direction, is favorable to the medicine to reach the focus deep department, plays the effect of adding the medicine midway. As shown in figure 16, the inclined directions of the through holes close to the flushing pipe and the medicine feeding pipe are different, so that foreign matters can be prevented from being flushed to the focus and extending into the focus when in flushing, and medicines can reach the deep part of the focus conveniently when in medicine feeding.

Example 5:

embodiment 5 of the present invention is further improved on the basis of

embodiment

1 or 2 or 3 or 4 so as to fully exert the technical advantages of the present invention, which will be exemplified below.

For example: as shown in fig. 14 and 17, the functional end of the catheter body is provided with a tip 13, the tip 13 is in a truncated cone shape or a hemispherical shape with an opening in the middle, which is beneficial to puncture of the catheter body, the tip 13 is provided with a developing ring 14, which can be used for accurately developing under X-ray, and visually observing the insertion position, the direction and the depth of the functional end of the catheter body.

Furthermore, it can be considered in this embodiment that, as shown in fig. 17-18, the outer wall of the tube wall is uniformly engraved with the tube graduation lines 15 along the axial direction thereof, so that the insertion depth of the tube body can be visually observed, the tube graduation lines 15 are provided with a tube development line 16 at intervals, the tube development lines 16 are accurately developed under X-ray, and the insertion depth and the insertion direction of the tube body can be visually observed.

Example 6:

embodiment 6 of the present invention is further improved on the basis of

embodiment

1 or 2 or 3 or 4 or 5 so that the technical advantages of the present invention can be fully exerted, which will be exemplified below.

For example: catheter location structure 4 is located the nearly function end of pipe wall, catheter location structure 4 is first location bag, first location bag is for having the utricule of gas transmission/water pipe, gas transmission/water pipe is current structure, not shown in the figure, first location bag can expand to catheter body exterior space behind aerifing/water, be oval or biconcave or prism when first location bag expands out, compare in ordinary annular utricule, special-shaped location bag can play more stable location effect, when first location bag expands out, can prevent that the catheter body from taking place axial displacement and circumferential displacement around and the rotation displacement, the fixed more reliable of catheter body location.

It should be noted that, the first positioning balloons on the catheter body are made of polymer materials, the number of the first positioning balloons is not limited to one, and the installation number and the installation position of the first positioning balloons can be selected according to actual requirements.

When the catheter body adopts the assembly mode in embodiment 2, the operation pipe section 103 can be matched with an external clamping and fixing structure to prevent the operation pipe section from rotating and shifting, the main body pipe section 101 is positioned by the catheter positioning structure to prevent the main body pipe section from rotating and shifting, and when the position of the flushing pipe needs to be adjusted, the flushing hole 12 of the flushing pipe can be towards the through hole 3 at different positions by only rotating the connecting pipe section 102, so that the flushing in different directions can be realized by only one flushing pipe, and the catheter is multifunctional and strong in practicability.

Example 7:

embodiment 7 of the present invention is further improved on the basis of

embodiment

1 or 2 or 3 or 4 or 5 or 6 so as to fully exert the technical advantages of the present invention, which will be exemplified below.

For example: the utility model discloses a catheter, including guide wire pipe 6, the guide wire pipe location structure 601, the guide wire pipe is the hollow tube structure, second location bag for setting up at the guide wire pipe end, guide wire pipe 6 can play the guide effect, still can regard as the gas transmission/water pipe use of second location bag, during the use, guide wire pipe reachs behind patient's focus position, the function end of catheter body can follow to the focus position and wash, the drainage etc., when the position to guide wire pipe is fixed a position, accessible guide wire pipe aerifys/water to second location bag, be oval or two spill when second location bag expands, compare in ordinary annular utricule, special-shaped location bag can play more stable locate effect, when second location bag expands, can prevent that guide wire pipe from taking place axial displacement and circumferential rotational displacement around, guide wire pipe fixed location is more reliable, not only do benefit to the accuracy follow-up of catheter body, and can guarantee to follow-up the position unanimity when changing different catheter bodies. When the guide wire tube needs to be drawn out, the second positioning bag is exhausted/watered through the guide wire tube, and the guide wire tube can move freely after the second positioning bag retracts.

In this actual operation, because it is expensive than single tube drainage tube to wash the pipe, often adopt single tube drainage tube to the patient after taking into account factors such as expense in the practice, can't then need single tube drainage tube replacement for washing the pipe under the condition of non-operation after the anastomotic stoma leaks when taking place. The replacement process is as follows: insert the single tube drainage tube that needs the replacement with the wire guide pipe, to second location intracapsular injected water or gas to fixed second location bag is at internal spatial position, and the single tube drainage tube is extracted to the back, inserts along the wire guide pipe and washes the pipe, promptly, the function end accessible wire guide pipe of pipe body follows to the focus position, and the wire guide pipe plays the guide and puts the pipe effect, realizes the replacement between single tube drainage tube replacement and the washing pipe, convenient operation.

Furthermore, it can be considered in this embodiment, as shown in fig. 19 to 20, the outer wall of the guidewire tube 6 is evenly marked with guidewire tube graduation lines 17 along the axial direction thereof, so that the insertion depth of the guidewire tube can be visually observed, and the guidewire tube graduation lines 17 are provided with one guidewire tube developing line 18 at intervals. The guide wire tube development line 18 is accurately developed under X-rays, and the insertion depth and the insertion direction of the guide wire tube can be visually observed.

The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An irrigation catheter, comprising: the method comprises the following steps:

an irrigation tube extending into the hollow cavity through the insertion channel;

2. An irrigation catheter as recited in claim 1, wherein: the pipe wall is of a sectional type structure and comprises a main pipe section, a connecting pipe section, an operation pipe section and a threaded pipe section which are sequentially connected, at least one embedding channel is obliquely embedded into the connecting pipe section, and the outer surface of the operation pipe section is composed of a plurality of edge surfaces.

3. An irrigation catheter as recited in claim 2, wherein: the adapter is connected with the threaded pipe section through threads, the flow adjusting structure is arranged on the flow guide pipe, and cap plugs are respectively arranged at the end parts of the flushing pipe and the dosing pipe.

4. An irrigation catheter according to claim 2, wherein: the through holes are at least two rows and are respectively and uniformly arranged along the axial direction of the pipe wall, wherein at least one row of the through holes are obliquely arranged towards the direction deviating from the functional end.

5. An irrigation catheter as recited in claim 4, wherein: the flushing pipe comprises a first flushing pipe section tightly penetrating through the embedded channel and a second flushing pipe section tightly attached to the inner wall of the main pipe section, and a plurality of flushing holes are formed in the side wall of the second flushing pipe section.

6. An irrigation catheter according to claim 4, wherein: the functional end of the catheter body is provided with an end head which is in a truncated cone shape or a hemispherical shape with an opening in the middle, and the end head is provided with a developing ring.

7. An irrigation catheter according to any one of claims 1-6, wherein: the outer wall of the pipe wall is evenly carved with a pipe scale line along the axial direction, and the pipe scale line is provided with a pipe developing line at intervals.

8. An irrigation catheter according to any of claims 1-6, wherein: the catheter positioning structure is positioned at the near functional end of the tube wall, the catheter positioning structure is a first positioning bag, and the first positioning bag is in an oval shape or a double-concave shape when being expanded.

9. An irrigation catheter according to any one of claims 1-6, wherein: the wire guide tube is of a hollow tube structure, the wire guide tube positioning structure is a second positioning bag arranged at the end part of the wire guide tube, and the second positioning bag is oval or double-concave when expanding.

10. An irrigation catheter as recited in claim 9, wherein: the silk guide tube developing device is characterized in that silk guide tube scale marks are evenly carved on the outer wall of the silk guide tube along the axial direction of the silk guide tube, and a silk guide tube developing line is arranged on the silk guide tube scale marks at intervals.