CN113521422B - Milk tube dredging and flushing device - Google Patents

Abstract

The utility model provides a breast pipe mediation washing unit, including stretching into in the breast pipe and inside have the filling pipe who fills the passageway, fill the passageway front end and stretch out filling pipe and form the perfusate export, can insert or extract a hollow wire guide in filling the passageway, this wire guide front end has and aerifys the district of expanding, after injecting aseptic compressed air into the wire guide, aerify the expansion of district of expanding and form conical flexible probe-in head, it moves the breast pipe bottom in the breast pipe to drive filling the catheter, it is intraductal to make to aerify the district of expanding and withdraw into the wire guide through the gassing, utilize the perfusate passageway to carry out the breast pipe and fill after taking out the wire guide. Although the invention causes the whole operation of the galactoscopy to become complex and needs to be firstly filled by the galactoscopy filling component, then the galactoscopy is carried out after the galactoscopy filling component is taken out, the filling process is more natural, the dosage is easier to control, and simultaneously, the filling from inside to outside and the washing effect are better.

Description

Milk tube dredging and flushing device

Technical Field

The invention relates to the field of galactoscopy in the mammary department, in particular to a breast duct dredging and flushing device.

Background

The ductoscopy is a method for examining the lumen and the wall of a mammary duct by an ultrafine optical fiber endoscope ductoscopy, can observe the position, the size, the surface form and the number of a focus under direct vision, helps a clinician to determine the position, the operation range and the like of the focus, can realize early discovery and early treatment on patients with malignant tumors in the duct, and improves the detection rate of early breast cancer.

Generally, during the process of the galactoscopy, liquid is injected into the breast duct cavity to wash out the blocked breast duct cavity and wash out mucus in the cavity so as to facilitate the observation of the galactoscopy, and during the process of the galactoscopy or the process of withdrawing the galactoscopy, the galactoscopy inevitably stimulates the breast duct cavity to generate secretions, so that the secretions need to be filled and washed after the galactoscopy is withdrawn.

At present, the breast duct perfusion generally adopts a liquid injection pipeline carried by a breast duct endoscope body, but the liquid injection pipeline is very thin and is generally only 0.2mm, the length is generally 150-200mm, the liquid injection resistance is very large, the assistant is inconvenient to operate, and the dosage of the perfusion liquid is difficult to master.

Disclosure of Invention

The invention provides a breast duct dredging and flushing device, which is an independent part outside a breast duct endoscope and is matched with the breast duct endoscope for use, so that the whole operation of breast duct endoscope inspection becomes complicated, the breast duct infusion assembly is required to be used for infusion, then the breast duct infusion assembly is taken out, and then the breast duct endoscope inspection is carried out, but the infusion process is more natural, the dosage is easier to control, meanwhile, the infusion from inside to outside is carried out, and the flushing effect is better.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a breast pipe mediation washing unit, including stretching into the intraductal filling pipe of breast, and the tail end that fills the pipe has the filling joint of being connected with the syringe, fill the inside filling channel that has of pipe, the filling channel front end stretches out filling pipe and forms the perfusate export, can insert or extract a hollow wire guide pipe in filling the channel, this wire guide pipe front end has aerifys the expansion district, the rear end has the gas pocket, this gas pocket is when wire guide pipe inserts filling channel, communicate with the compressed air pipe on filling the joint, compressed air pipe passes through the gas pocket and pours into behind the aseptic compressed air to the intraductal injection of wire, aerify the expansion of expansion district and form conical flexible probe, this flexible probe moves filling pipe and removes the breast pipe bottom in the breast pipe, afterwards, make through gassing and aerify the expansion district and retract to the wire guide, utilize the perfusate liquid passageway to carry out the breast pipe to pour into after taking out the wire guide pipe.

As an improved scheme of the milk tube dredging and washing device, the silk guide tube comprises a hollow tube body, an inflation and expansion area at the front end of the hollow tube body is formed by surrounding an annular silica gel tube at the front end of the hollow tube body and a first elastic skin for sealing the free end of the annular silica gel tube, after inflation, the first elastic skin expands and protrudes to form a conical head, and the elastic annular silica gel tube is extruded to the lateral rear side to form a lateral side protruding part for shielding the front end of the perfusion catheter.

As another kind of improvement scheme of breast pipe mediation washing unit, the front end of filling the pipe has export protection architecture, this export protection architecture has the silica gel body with perfusate export syntropy open-ended including encircleing the setting of filling the pipe front end, be provided with second elastic coating between silica gel body open end and perfusate export, and second elastic coating, silica gel body and fill the pipe front end and enclose into a first inflation district that encircles the perfusate export, this first inflation district is through the gas passage that is equipped with in the filling pipe and is gone into aseptic compressed air and make it expand to the perfusate export direction in the middle of it.

As another kind of improvement scheme of breast pipe mediation washing unit, set up the first inflation and deflation hole of intercommunication first inflation district and gas channel on the silica gel body, and this first inflation and deflation hole is controlled it by the first shutoff pad that is in the gas channel and is opened and close, first shutoff pad be in the afterbody of a rotating member, the outer wall of this rotating member and the outer tube inner wall threaded connection who fills the pipe, and form handheld rotation portion behind the protruding outer tube of the front end of rotating member, twist through the finger and hand the anticlockwise or clockwise rotation of rotation portion, drive rotating member and outer tube and take place relative movement, and then realize that first shutoff pad is to first opening and closing of inflating and deflating the hole.

As another improvement scheme of the milk tube dredging and washing device, a positioning mechanism for fixing is arranged at the front end of the perfusion catheter, the positioning mechanism comprises an annular hollow support sleeve fixed around an outer tube of the perfusion catheter, at least three hollow support tubes are uniformly distributed around the hollow support sleeve, an inflation expansion end is arranged at the end part of each hollow support tube, the inflation expansion end, the hollow support tubes and the hollow support sleeve are communicated, and the hollow support sleeve is communicated with a gas channel arranged in the perfusion catheter through at least two second inflation and deflation holes.

As another kind of improvement scheme of breast pipe mediation washing unit, the second fills the gassing hole and is controlled it by the second shutoff pad that is in gas passage and open and close, the second shutoff pad is in on the rotating member, the outer wall of this rotating member and the outer tube inner wall threaded connection who fills the pipe, and forms handheld rotating part behind the front end protrusion outer tube of rotating member, twist handheld rotating part anticlockwise or clockwise rotation through the finger, drive rotating member and outer tube and take place relative movement, and then realize the second shutoff pad and fill opening and closing of gassing hole to the second.

As another improvement scheme of the milk duct dredging and flushing device, a sliding type milk duct dredging structure is arranged on the perfusion catheter in a sliding mode and comprises a sliding ring sleeved on the perfusion catheter in a sliding mode, two vertical plates surrounding the edge of the sliding ring are symmetrically arranged on two sides of the sliding ring, an annular cavity is formed between the two vertical plates, an annular air bag is arranged at the bottom of the annular cavity, at least three arc-shaped scrapers are arranged on the annular air bag and spliced to form an annular piece surrounding the annular air bag when the annular air bag is not inflated and expanded, the top of the annular piece does not protrude out of the annular cavity, the arc-shaped scrapers are pushed to extend out of the annular cavity after the annular air bag is inflated and expanded to form a dredging head protruding out of the annular air bag, gaps are formed between every two adjacent arc-shaped scrapers, when perfusion liquid sprayed out of a perfusion liquid outlet flows back to the sliding type milk duct dredging structure, one part of the arc-shaped scrapers flows out of the milk duct through the gaps, the other part of the arc-shaped scrapers generates pressure for pushing the sliding type milk duct dredging structure to slowly move outside the milk duct along the perfusion catheter.

As another improvement of the milk tube dredging and flushing device, the sliding milk tube dredging structure has an initial position close to the perfusate outlet, and when the sliding milk tube dredging structure is at the initial position, a third air charging and discharging hole arranged in the slip ring is communicated with an air channel arranged in the perfusion catheter so as to complete air charging and discharging of the annular air bag through the air channel.

As another improvement scheme of breast pipe mediation washing unit, fill and have the air guide hole of filling the pore butt joint with the third on the pipe, this air guide hole is closed and is opened by third shutoff pad control, third shutoff pad be in on a rotating member, the outer wall of this rotating member and the outer tube inner wall threaded connection who fills the pipe, and form handheld rotating part behind the protrusion outer tube of the front end of rotating member, twist handheld rotating part anticlockwise or clockwise rotation through the finger, drive rotating member and outer tube and take place relative movement, and then realize that third shutoff pad opens and closes the third and fill the air guide hole.

As another improvement of the milk tube dredging and washing device, the tail end of the perfusion catheter is provided with a transparent overflowing liquid collecting sleeve, the overflowing liquid collecting sleeve comprises an elastic cover made of a silica gel material, the center of the elastic cover is provided with a mounting hole for the perfusion catheter to pass through, the outer edge of the elastic cover is curled to form a liquid storage space, a nipple probing area is formed between the outer edge and the mounting hole, and the back of the outer edge is provided with a sticker adsorbed on a breast.

Compared with the prior art, the invention has the following beneficial effects:

1) The invention is independent of the independent part outside the breast duct mirror, and is used with the breast duct mirror in a matching way, although the whole operation of the breast duct mirror examination becomes complex, the breast duct injection assembly is required to be used for injection firstly, and then the breast duct injection assembly is taken out to carry out the breast duct mirror examination, but the injection process is more natural, the dosage is easier to control, and meanwhile, the injection from the inside to the outside has better flushing effect;

2) According to the invention, the guide wire tube is inserted into the perfusion catheter, and then the guide wire tube is inflated, so that the inflatable expansion area at the front end of the guide wire tube is expanded to form the conical flexible probe head, the arrangement mode can guide the perfusion catheter to directly reach the interior of the breast duct, then the air in the flexible probe head is discharged, and the guide wire tube is drawn out for perfusion, and the flexible probe head formed at the front end of the guide wire tube can shield the front end of the perfusion catheter, so that the resistance of the perfusion catheter inserted into the breast duct is reduced, and the blockage of a lesion tissue to the perfusion catheter is prevented; (ii) a

3) The front end of the perfusion catheter is provided with an outlet protection structure, the core of the perfusion catheter is a first inflatable expansion area formed by an elastic skin and a silicone tube body, and the first inflatable expansion area expands out in the direction of the outlet of the middle perfusate after being inflated, so that the pathological tissue in the breast duct is expanded, and meanwhile, the blockage of the perfusate outlet by the secretion of the breast duct can be prevented;

4) The front end of the perfusion catheter is provided with a positioning mechanism which is provided with hollow supporting tubes, after the hollow supporting tubes are inflated, the inflation expansion ends at the end parts of the hollow supporting tubes expand and protrude and are contacted with the inner wall of the milk tube, so that the perfusion catheter is positioned and supported, and meanwhile, the channels between the inflation expansion ends cannot influence perfusion flushing of perfusion liquid flowing out of a perfusion liquid outlet on the milk tube;

5) The core of the slippage type milk duct dredging structure on the perfusion catheter is a sliding ring which is arranged on the perfusion catheter in a sliding mode, an annular air bag which is arranged on the sliding ring and an arc-shaped scraper which is arranged on the annular air bag, when the annular air bag is inflated and expanded, the arc-shaped scraper is pushed to extend out to form a protruded dredging head, due to the fact that the annular air bag is expanded uniformly, the arc-shaped scraper expands radially, gaps are formed between adjacent arc-shaped scrapers, when perfusion liquid flows into the front portion of the slippage type milk duct dredging structure, a part of the perfusion liquid generates pressure which pushes the arc-shaped scraper to move outwards, and therefore the arc-shaped scraper is pushed to drive the slippage type milk duct dredging structure to move outwards slowly and integrally, secretion on the inner wall of a milk duct is dredged in the moving process, due to the existence of the gaps between the adjacent arc-shaped scrapers, the pressure of perfusion liquid in the milk duct cannot be too high, and the breast duct is not irritated;

6) As the perfusion liquid is perfused and washed from inside to outside, the perfusion liquid inevitably flows to the chest skin of an operator after overflowing from the front end of the breast duct and then flows downwards along the skin of the operator, in order to solve the problem, the tail end of the perfusion duct is provided with the overflowing liquid collecting sleeve which is an elastic cover, the center of the elastic cover passes through the perfusion duct, the outer edge of the elastic cover is curled to form a liquid storage space, a nipple probing area is formed at the edge of the elastic cover, the nipple can conveniently stretch into the liquid storage space, and the back of the outer edge is provided with an adhesive which can be adsorbed on the skin, so that the overflowing liquid collecting sleeve is fixed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the rear portion of the irrigation catheter;

FIG. 3 is a schematic view of the structure of the guidewire tube;

FIG. 4 is an enlarged view of the front portion of the irrigation catheter (with the guidewire tube not inserted);

fig. 5 is a schematic perspective view of a sliding type milk duct dredging structure;

FIG. 6 is a schematic cross-sectional view of a sliding type milk duct dredging structure;

FIG. 7 is a schematic view of the inner cross section of the sliding type milk duct guiding structure (when not opened);

FIG. 8 is a schematic view of the inner cross section of the sliding type milk duct guiding structure (when opened);

FIG. 9 is a schematic view of the positioning mechanism (when not expanded);

FIG. 10 is a schematic view of the positioning mechanism (when expanded);

FIG. 11 is an enlarged view of the front portion of the irrigation catheter (guidewire tube inserted);

FIG. 12 is a schematic front view of the irrigation catheter after inflation of the guidewire tube inserted therein;

FIG. 13 is a front view of the infusion catheter after withdrawal of the guidewire tube for infusion;

FIG. 14 is a schematic view of the structure of the irrigation catheter and its front outlet protection structure (when not inflated);

FIG. 15 is a schematic structural view of the irrigation catheter and its frontal outlet protection structure (when inflated);

reference numerals: 1. the device comprises a perfusion catheter, 101, an outer tube, 102, a rotating piece, 103, an inner tube, 104, a gas channel, 105, a perfusion channel, 106, a third plugging pad, 107, a second plugging pad, 108, a first plugging pad, 109, a handheld rotating part, 2, a guide wire tube, 201, a hollow tube body, 202, an annular silicone tube, 203, a first elastic skin, 204, a tail plug part, 205, an air hole, 206, an operating handle, 3, an outlet protection structure, 301, a silicone tube body, 302, a second elastic skin, 303, a first inflation expansion area, 304, a perfusion liquid outlet, 4, a sliding type milk tube dredging structure, 401, a sliding ring, 402, a vertical plate, an arc scraper blade, 404, an annular air bag, 405, an annular cavity, 406, a third inflation and deflation hole, 407, a gap, 5, a positioning mechanism, 501, a hollow support sleeve, 502, a hollow support tube, 503, an inflation end, 6, a gas joint, 7, a overflowing liquid collection sleeve, 701, an elastic collection sleeve, 702, a mounting hole, a cover, 703, a support space, 705, a liquid storage space, a nipple joint, 9, and a nipple joint.

Detailed Description

The technical solution of the present invention will be further described with reference to the following embodiments, and the portions of the present invention which appear in the following embodiments and are not described in detail do not relate to the improvement portion of the present invention, and the functions of the present invention, such as the structure of the perfusion connector 9 and the connection thereof with the existing perfusion apparatus or syringe, and the structure of the gas connector 6 and the connection thereof with the existing inflation apparatus, etc., can be realized by using the prior art or similar related structure.

Example 1

A milk tube dredging and flushing device is disclosed in figures 1, 3, 11 and 12, and comprises a perfusion catheter 1 extending into a milk tube, wherein the perfusion catheter 1 is a thin-walled metal tube with the thickness of 0.3-0.8mm, the diameter of the perfusion catheter can be determined according to the expansion condition of the milk tube according to the specific condition of a patient, the length of the perfusion catheter is generally 25-40cm, the perfusion catheter 1 has a perfusion connector 9 connected with an injector at the tail end, the tail end of the perfusion catheter 1 is connected with the perfusion connector 9 through the injector and is connected to a perfusion branch tube of the perfusion connector 9, the injector is pushed to enable the perfusion liquid in the perfusion catheter to flow into the milk tube along the perfusion catheter 1 to complete the perfusion of the milk tube, the perfusion catheter 1 is internally provided with a perfusion channel 105, the tail end of the perfusion channel 105 is communicated with the perfusion connector 9, the front end of the perfusion catheter extends out of the perfusion catheter 1 to form a perfusion liquid outlet 304, a hollow guide wire 2 can be inserted or pulled out of the perfusion channel 105, the front end of the guide wire 2 is provided with an inflatable expansion area, when the guide wire 2 is inserted into the perfusion channel 105, the rear end of the perfusion catheter 2 is designed to be inserted into a limiting block, and the perfusion catheter 2 is inserted into the perfusion catheter 2, and is limited to be supported on the perfusion catheter 1, and is limited to be positioned in the perfusion catheter 2, and is inserted into the perfusion catheter 1, and is supported on the perfusion area 304; the rear end has the air vent 205, this air vent 205 when the guide wire pipe 2 inserts in filling the passageway 105, with filling the compressed air pipe on the joint 9 and communicating, after the compressed air pipe injects aseptic compressed air into the guide wire pipe 2 through air vent 205, aerify the inflation district and expand and form conical flexible probe head, this flexible probe head moves filling pipe 1 and moves to the breast duct bottom in the breast duct, afterwards, make and aerify the inflation district and retract into guide wire pipe 2 through the gassing, utilize perfusate liquid passageway 105 to carry out the breast duct and pour after taking out guide wire pipe 2.

In this embodiment, the infusion connector 9 is connected to the infusion catheter 1, and has two branch tubes, one of which is used for connecting a syringe to inject infusion fluid into the infusion catheter 1, and the other of which is connected with compressed air, and after the guide wire tube 2 is inserted into the infusion channel 105, sterile compressed air is injected into the guide wire tube 2, and at this time, the infusion catheter 1 has a hole butted with the air hole 205.

In the embodiment, the perfusion is performed without the aid of a perfusion assembly carried by the existing galactoscope, the rear end of the perfusion catheter 1 is provided with the support rod 8, and the support rod 8 can be fixed on a support to avoid the movement caused by holding by hand during operation;

in this embodiment, the filling opening 2 and the gas connector 6 are both implemented by the prior art, and only the requirement of filling the liquid and the gas into the filling conduit 1 is satisfied.

The use method of the milk duct perfusion assembly comprises the following steps:

1) Inserting the guide wire tube 2 into the perfusion catheter 1 until the inflatable expansion area of the guide wire tube 2 protrudes out of the front end of the perfusion catheter 1;

2) Connecting the perfusion connector 9 to a compressed air pipe, and blowing sterile compressed air into the guide wire pipe 2 until the inflation expansion area expands to form a conical flexible probe;

3) Smearing a lubricant on the surface of the flexible probe, rotating the perfusion catheter 1 while probing the flexible probe into the target breast duct, and continuing to rotate the perfusion catheter 1 while stretching the perfusion catheter 1 into the target breast duct until the flexible probe enters the bottom of the target breast duct after the flexible probe completely enters the target breast duct; generally, the depth of a target breast duct is measured in advance by using a guide wire or in other modes, and then whether the target breast duct reaches the bottom of the breast duct is judged by the length of the perfusion catheter 1 extending into the breast duct;

4) Extracting the sterile compressed air in the guide wire tube 2, and then extracting the guide wire tube 2;

5) The perfusion connector 9 is connected with an injector for sucking the perfusion liquid, and the injector is slowly pushed to inject the perfusion liquid into the perfusion opening 2 until the perfusion liquid overflows from the front end of the breast duct. The perfusion time and the perfusion flow are set according to the command of the operating doctor.

The above is a basic implementation manner of the present invention, and the technical solution of the present invention may be further improved, optimized or limited on the basis of the above, so as to obtain the following embodiments:

example 2

This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: as shown in fig. 3, the guidewire tube 2 includes a hollow tube 201, the inflation and expansion area at the front end of the hollow tube 201 is surrounded by an annular silicone tube 202 surrounding the front end of the hollow tube 201 and a first elastic skin 203 closing the free end of the annular silicone tube 202, and after inflation, the first elastic skin 203 expands and protrudes to form a conical head, and presses the elastic annular silicone tube 202 towards the lateral rear to form a lateral protruding portion shielding the front end of the perfusion catheter 1, so as to prevent the end of the perfusion catheter 1 from entering during the process of probing the pathological tissue in the breast, as shown in fig. 11 and 12.

In this embodiment, as shown in fig. 3, the hollow tube body 201 has a tail plug portion 204 at the rear end thereof for plugging the hollow tube body, the free end of the tail plug portion 204 has an operating handle 206, the guide wire tube 2 is inserted or pulled out through the operating handle 206, and the air hole 205 is located at the end close to the tail plug portion 204; in addition, a limiting block can be designed on the tail plug part 204 for limiting the position of the guide wire tube 2 inserted into the perfusion catheter 1, and the limiting block is not marked on the figure.

Example 3

The embodiment is another improvement scheme based on the embodiment 1, and the main structure of the embodiment is the same as the embodiment 1, and the improvement points are as follows: as shown in fig. 14 and 15, the front end of the perfusion catheter 1 is provided with an outlet protection structure 3, the outlet protection structure 3 includes a silicone tube 301 which is disposed around the front end of the perfusion catheter 1 and has an opening in the same direction as the perfusate outlet 304, the silicone tube 301 is a semi-closed sleeve which is open at one end and closed at the other end, the perfusion catheter 1 extends into the sleeve through the closed end so as to wrap the perfusate outlet 304, a second elastic skin 302 is disposed between the open end of the silicone tube 301 and the perfusate outlet 304, and the second elastic skin 302, the silicone tube 301 and the front end of the perfusion catheter 1 enclose a first inflatable expansion region 303 which surrounds the perfusate outlet 304, the first inflatable expansion region 303 is inflated by sterile compressed air through a gas passage 104 disposed in the perfusion catheter 1 so as to expand towards the middle perfusate outlet 304 to prop up the lesion tissue in the breast, and at the same time, the perfusion outlet 304 is prevented from being blocked by secretion of the breast tube, and the tail end of the gas passage 104 is communicated with a gas connector 6 connected to the tail end of the perfusion catheter 1.

To ensure that the first inflatable expansion region 303 can expand towards the perfusate outlet 304 after inflation but does not block the perfusate outlet 304, the edge of the silicone tube body 301 generally extends beyond the edge of the perfusate outlet 304, so that the first elastic skin 302 is gradually inclined and lowered from the edge to the middle in the uninflated condition, and the tail end of the gas channel 104 is communicated with the gas connector 6 connected to the tail end of the perfusion catheter 1.

Example 4

This embodiment is an improved scheme based on embodiment 3, and the main structure thereof is the same as embodiment 3, and the improvement point is that: as shown in fig. 14 and 15, a first inflation/deflation hole communicating the first inflation/deflation area 303 and the gas channel 104 is formed in the silicone tube body 301, and the opening and closing of the first inflation/deflation hole is controlled by a first plugging pad 108 located in the gas channel 104, the number of the first inflation/deflation holes is generally two or three, and the first inflation/deflation holes are uniformly distributed around the perfusate outlet 304, the first plugging pads 108 correspond to the first plugging pads 108 one by one, the first plugging pad 108 is located at the tail part of a rotating member 102, the outer wall of the rotating member 102 is in threaded connection with the inner wall of the outer tube 101 of the perfusion catheter 1, and the front end of the rotating member 102 protrudes out of the outer tube 101 to form a handheld rotating part 109, the handheld rotating part 109 is twisted by a finger to rotate counterclockwise or clockwise, the rotating member 102 and the outer tube 101 are driven to move relatively, so as to open and close the first inflation/deflation hole 305 by the first plugging pad 108.

Example 5

The embodiment is another improvement scheme based on the embodiment 1, and the main structure of the embodiment is the same as the embodiment 1, and the improvement points are as follows: as shown in fig. 4, 9, 10, 12 and 13, a positioning mechanism 5 for fixing is disposed at the front end of the perfusion conduit 1, the positioning mechanism 5 is located at a side of the outlet protection structure 3 away from the first inflation expansion area 303, the positioning mechanism 5 includes an annular hollow support sleeve 501 fixed around the outer tube 101 of the perfusion conduit 1, at least three hollow support tubes 502 are uniformly distributed around the hollow support sleeve 501, 4 hollow support tubes are shown in fig. 9 and 10, the end portion of the hollow support tube 502 has an inflation expansion end 503, the hollow support tube 502 and the hollow support sleeve 501 are communicated, the hollow support sleeve 501 is communicated with the gas channel 104 disposed in the perfusion conduit 1 through at least two second inflation and deflation holes, and the tail end of the gas channel 104 is communicated with the gas connector 6 connected to the tail end of the perfusion conduit 1.

In this embodiment, the inflatable puff 503 is made of an elastic film, and when not inflated, has a height not exceeding the edge of the outlet protection structure 3, and when inflated with a certain amount of gas, the inflatable puff 503 protrudes to a height exceeding the edge of the outlet protection structure 3 and contacts the milk duct wall; the loft of the inflation puff 503 is controlled by controlling the inflation pressure to match the elasticity of the material of the inflation puff 503.

Example 6

This embodiment is an improved scheme based on embodiment 5, and the main structure thereof is the same as embodiment 5, and the improvement point is as follows: as shown in fig. 14 and 15, the second inflation/deflation hole is controlled to be opened and closed by a second plugging pad 107 located in the gas channel 104, the second plugging pad 107 is located on a rotating member 102, the outer wall of the rotating member 102 is in threaded connection with the inner wall of the outer tube 101 of the perfusion catheter 1, the front end of the rotating member 102 protrudes out of the outer tube 101 to form a handheld rotating part 109, the handheld rotating part 109 is screwed by fingers to rotate anticlockwise or clockwise, the rotating member 102 and the outer tube 101 are driven to move relatively, and then the second inflation/deflation hole is opened and closed by the second plugging pad 107.

The rotating member 102 in this embodiment is actually the same as the rotating member 102 in embodiment 4, and the second sealing pad 107 and the first sealing pad 108 synchronously control the opening and closing of the second air vent and the first air vent.

Example 7

The present embodiment is another modified scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, and the improvement point is that: as shown in fig. 4, 5, 6, 7 and 8, the perfusion catheter 1 is slidably provided with a sliding milk duct dredging structure 4, the sliding milk duct dredging structure 4 comprises a sliding ring 401 slidably sleeved on the perfusion catheter 1, two vertical plates 402 surrounding the edge of the sliding ring 401 are symmetrically arranged on both sides of the sliding ring 401, an annular cavity 405 is formed between the two vertical plates 402, an annular air bag 404 is arranged at the bottom of the annular cavity 405, the bottom of the annular air bag 404 is fixedly connected with the sliding ring 401, the upper part of the annular air bag can expand along the annular cavity 405 after being inflated, at least three arc-shaped scrapers 403 are arranged on the annular air bag 404, the arc-shaped scrapers 403 are spliced to form an annular piece surrounding the annular air bag 404 when the annular air bag 404 is not inflated and expanded, the top of the annular piece does not protrude out of the annular cavity 405, when the annular air bag 404 is inflated and expands to push the arc-shaped scrapers 403 to extend out of the annular cavity 405, a dredging head protruding outside is formed, the protruding dredging head is higher than the protruding into the perfusion catheter 1 of the probe 3, a gap 407 is formed between the two adjacent arc-shaped scrapers, the milk duct outflow structure is ejected from the outflow port 304, when the milk duct 4, the outflow structure is pushed to slowly move back to the milk duct dredging structure, and the milk duct outflow structure 4 moves along the other milk duct 4, and the milk duct outflow structure 4, and the milk duct outflow structure moves slowly.

Example 8

This embodiment is an improved scheme based on embodiment 7, and the main structure thereof is the same as that of embodiment 7, and the improvement point is that: as shown in fig. 6, 7 and 8, the sliding type milk duct canalizing structure 4 has an initial position close to the perfusate outlet 304, and when the sliding type milk duct canalizing structure 4 is in the initial position, the third air inflation and deflation hole 406 formed in the sliding ring 401 is communicated with the air passage 104 formed in the perfusion catheter 1 to complete the air inflation and deflation of the annular air bag 404 through the air passage 104, and the tail end of the air passage 104 is communicated with the air connector 6 connected to the tail end of the perfusion catheter 1.

In this embodiment, the perfusion tube 1 corresponding to the initial position has an air hole corresponding to the third inflation/deflation hole 406, and the air hole is sealed by the third plugging pad 106, during the sliding process, because the connection between the slider 401 and the surface of the perfusion tube 1 is not completely sealed, the air can gradually escape, and further the protruding height of the scraper 403 is gradually reduced, so as to meet the characteristics of the diameter of the milk tube, that is, the inside is wide and the outside is narrow.

Example 9

This embodiment is an improved scheme based on embodiment 8, and the main structure thereof is the same as that of embodiment 8, and the improvement point is that: as shown in fig. 6, 14 and 15, the perfusion catheter 1 has an air-guide hole in butt joint with the third air-vent 406, the air-guide hole is controlled to be closed and opened by the third plugging pad 106, the third plugging pad 106 is located on a rotating member 102, the outer wall of the rotating member 102 is in threaded connection with the inner wall of the outer tube 101 of the perfusion catheter 1, and the front end of the rotating member 102 protrudes out of the outer tube 101 to form a handheld rotating part 109, and the handheld rotating part 109 is screwed by fingers to rotate counterclockwise or clockwise to drive the rotating member 102 and the outer tube 101 to move relatively, thereby opening and closing the third air-vent 406 by the third plugging pad 106.

The rotating member 102 in this embodiment is actually the same as the rotating member 102 in embodiments 4 and 6, and one rotating member 102 drives the third plugging pad 106, the second plugging pad 107 and the first plugging pad 108 synchronously to control the opening and closing of the third air charging and discharging hole 406, the second air charging and discharging hole and the first air charging and discharging hole.

Example 10

The present embodiment is another modified scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, and the improvement point is that: as shown in fig. 2, the tail end of the perfusion catheter 1 is provided with a transparent overflow collecting sleeve 7, the overflow collecting sleeve 7 comprises a sheet of elastic cover 701 made of silica gel material, the center of the elastic cover 701 is provided with a mounting hole 702 for the perfusion catheter 1 to pass through, the outer edge 703 of the elastic cover 701 is curled to form a liquid storage space 704, a nipple probing area 706 is formed between the outer edge 703 and the mounting hole 702, and the back of the outer edge 703 is provided with a sticker 705 attached to the breast. In this embodiment, after the front end of the perfusion catheter 1 extends into the breast duct, the cover 7 is collected by sliding the overflowing liquid, so that the nipple passes through the nipple probing area 706, and then the sticker 705 at the back of the outer edge 703 is adhered to the breast, so that the nipple is sealed, the perfusate and the tissue liquid overflowing from the breast duct can enter the overflowing liquid collecting cover 7.

In this embodiment, the elastic cover 701 has a slit along the radial direction of the mounting hole 702 to separate the cover, and the two sides of the slit are combined into a whole by using an adhesive structure, and when in use, the mounting hole 702 is sleeved on the perfusion catheter 1 through the slit.

Example 11

The present embodiment is another modified scheme based on embodiment 1, and the main structure of the present embodiment is the same as that of embodiment 1, and the improvement point is that: as shown in fig. 14 and 15, the perfusion catheter 1 includes an outer tube 101 and an inner tube 103 disposed therein, a gas passage 104 is formed between an outer wall of the inner tube 103 and an inner wall of the outer tube 101, and a perfusion passage 105 is formed inside the inner tube 103.

Claims (9)

1. The utility model provides a breast pipe mediation washing unit, is including stretching into perfusion catheter (1) in the breast pipe, and the tail end of perfusion catheter (1) has the perfusion joint (9) of being connected with the syringe, its characterized in that: the milk tube perfusion device is characterized in that a perfusion channel (105) is arranged in the perfusion catheter (1), the front end of the perfusion channel (105) extends out of the perfusion catheter (1) to form a perfusion liquid outlet (304), a hollow guide wire tube (2) can be inserted into or pulled out of the perfusion channel (105), the front end of the guide wire tube (2) is provided with an inflatable expansion area, the rear end of the guide wire tube is provided with an air hole (205), the air hole (205) is communicated with a compressed air tube on a perfusion connector (9) when the guide wire tube (2) is inserted into the perfusion channel (105), the compressed air tube injects sterile compressed air into the guide wire tube (2) through the air hole (205), the inflatable expansion area expands to form a conical flexible probe, the flexible probe moves the perfusion catheter (1) to the bottom of a milk tube in the milk tube, then retracts the inflatable expansion area into the guide wire tube (2) through deflation, and the perfusion channel (105) is used for milk tube perfusion after the guide wire tube (2) is pulled out;

the breast milk duct outflow pushing device is characterized in that a sliding type breast milk duct dredging structure (4) is arranged on the perfusion catheter (1) in a sliding mode, the sliding type breast milk duct dredging structure (4) comprises a sliding ring (401) which is sleeved on the perfusion catheter (1) in a sliding mode, two vertical plates (402) which surround the edge of the sliding ring (401) are symmetrically arranged on two sides of the sliding ring (401), an annular cavity (405) is formed between the two vertical plates (402), an annular air bag (404) is arranged at the bottom of the annular cavity (405), at least three arc-shaped scrapers (403) are arranged on the annular air bag (404), when the annular air bag (404) is not inflated and expanded, the arc-shaped scrapers (403) are spliced to form an annular piece which surrounds the annular air bag (404), the top of the annular piece does not protrude out of the annular cavity (405), when the annular air bag (404) is inflated and expanded, the arc-shaped scrapers (403) are pushed to extend out of the annular cavity (405), dredging heads which protrude out are formed, gaps (407) are formed between every two adjacent arc-shaped scrapers (403), when perfusion liquid which flows back to the sliding type breast milk duct outflow guiding structure (4) from the perfusion liquid outlet (304), a part of the sliding type breast milk duct outflow pushing structure (4) slowly pushes the breast milk duct outflow, and the other breast milk duct outflow pushing structure (4) moves along the sliding type breast milk duct outflow pushing structure (407).

2. The milk tube dredging and flushing device of claim 1, wherein: the wire guide tube (2) comprises a hollow tube body (201), an inflation and expansion area at the front end of the hollow tube body (201) is formed by surrounding an annular silica gel tube (202) at the front end of the hollow tube body (201) and surrounding a first elastic skin (203) sealed at the free end of the annular silica gel tube (202), and after inflation, the first elastic skin (203) expands and protrudes to form a conical head, and the side rear part of the inflatable rubber tube (202) is extruded to have elasticity, so that a side protruding part blocking the front end of the perfusion tube (1) is formed.

3. The milk tube dredging and flushing device according to claim 1, characterized in that: the front end of filling pipe (1) has export protection architecture (3), this export protection architecture (3) have with perfusate export (304) syntropy open-ended silica gel body (301) including surrounding the setting of filling pipe (1) front end, be provided with second elasticity covering (302) between silica gel body (301) open end and perfusate export (304), and second elasticity covering (302), silica gel body (301) and fill pipe (1) front end enclose into a first inflation expansion district (303) of surrounding perfusate export (304), this first inflation expansion district (303) are through filling gas channel (104) that are equipped with in pipe (1) and are gone into aseptic compressed air and make it expand to middle perfusate export (304) direction.

4. A milk tube dredging and flushing device according to claim 3, characterized in that: the silica gel pipe body (301) is provided with a first inflation and deflation hole communicated with a first inflation and deflation area (303) and a gas channel (104), the first inflation and deflation hole is controlled to be opened and closed by a first plugging pad (108) in the gas channel (104), the first plugging pad (108) is arranged at the tail part of a rotating piece (102), the outer wall of the rotating piece (102) is in threaded connection with the inner wall of an outer pipe (101) of a perfusion conduit (1), the front end of the rotating piece (102) protrudes out of the outer pipe (101) to form a handheld rotating part (109), the handheld rotating part (109) is screwed by fingers to rotate anticlockwise or clockwise, the rotating piece (102) and the outer pipe (101) are driven to move relatively, and then the first inflation and deflation hole (305) is opened and closed by the first plugging pad (108).

5. The milk tube dredging and flushing device of claim 1, wherein: the front end of pouring into pipe (1) is provided with positioning mechanism (5) that are used for fixing, and this positioning mechanism (5) support cover (501) including the fixed ring form cavity of outer tube (101) that encircles pouring into pipe (1), encircles this cavity and supports cover (501) evenly distributed and have three at least hollow stay tubes (502), and the tip of hollow stay tube (502) has aerifys inflation end (503), aerify inflation end (503), hollow stay tube (502) and hollow stay cover (501) intercommunication, and hollow stay cover (501) fill the gas channel (104) intercommunication that is equipped with in gas charging and discharging hole and pouring into pipe (1) through two at least seconds.

6. A milk tube dredging and flushing device according to claim 5, characterized in that: the second air charging and discharging hole is controlled to be opened and closed by a second plugging pad (107) in the air channel (104), the second plugging pad (107) is arranged on a rotating piece (102), the outer wall of the rotating piece (102) is in threaded connection with the inner wall of an outer tube (101) of the perfusion catheter (1), a handheld rotating part (109) is formed after the front end of the rotating piece (102) protrudes out of the outer tube (101), the handheld rotating part (109) is screwed by fingers to rotate anticlockwise or clockwise, the rotating piece (102) and the outer tube (101) are driven to move relatively, and then the second plugging pad (107) is opened and closed to the second air charging and discharging hole.

7. The milk tube dredging and flushing device of claim 1, wherein: the sliding type milk duct dredging structure (4) is provided with an initial position close to the perfusate outlet (304), and when the sliding type milk duct dredging structure (4) is in the initial position, a third air charging and discharging hole (406) formed in the sliding ring (401) is communicated with an air channel (104) formed in the perfusion catheter (1) so as to complete air charging and discharging of the annular air bag (404) through the air channel (104).

8. The milk tube dredging and flushing device according to claim 7, wherein: the infusion catheter (1) is provided with an air guide hole in butt joint with a third air filling and discharging hole (406), the air guide hole is controlled to be closed and opened by a third plugging pad (106), the third plugging pad (106) is arranged on a rotating piece (102), the outer wall of the rotating piece (102) is in threaded connection with the inner wall of an outer tube (101) of the infusion catheter (1), the front end of the rotating piece (102) protrudes out of the outer tube (101) to form a handheld rotating part (109), the handheld rotating part (109) is screwed by fingers to rotate anticlockwise or clockwise to drive the rotating piece (102) and the outer tube (101) to move relatively, and then the third air filling and discharging hole (406) is opened and closed by the third plugging pad (106).

9. The milk tube dredging and flushing device according to claim 1, characterized in that: the tail end of the perfusion catheter (1) is provided with a transparent overflowing liquid collecting sleeve (7), the overflowing liquid collecting sleeve (7) comprises an elastic cover (701) made of a silica gel material, the center of the elastic cover (701) is provided with a mounting hole (702) for the perfusion catheter (1) to pass through, the outer edge (703) of the elastic cover (701) is curled to form a liquid storage space (704), a nipple probing area (706) is formed between the outer edge (703) and the mounting hole (702), and the back of the outer edge (703) is provided with a glue sticker (705) adsorbed on a breast.

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