CN217548749U

CN217548749U - Disposable lavage catheter for mammary gland pipe

Info

Publication number: CN217548749U
Application number: CN202122829186.XU
Authority: CN
Inventors: 徐明泉; 唐海涛; 丁文龙; 陈静
Original assignee: Jiangsu Suzhong Pharmaceutical Group Medical Devices Co ltd
Current assignee: Jiangsu Suzhong Pharmaceutical Group Medical Devices Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-10-11
Anticipated expiration: 2031-11-18

Abstract

The utility model provides a disposable lavage catheter for a mammary duct, which comprises an insertion tube component, a sleeve body and a lavage hose; the inserting pipe assembly is a hollow pipeline, and one end of the inserting pipe assembly is inserted into the sleeve body and fixed; one end of the lavage hose is connected with the sleeve body; the insertion tube assembly, the sleeve body and the lavage hose are communicated to form a milk lavage liquid injection and extraction channel. The utility model provides a disposable lavage pipe for mammary gland pipe has following outstanding advantage for prior art: the outer diameter and the length of the insertion tube accord with the physiological structure of the female mammary duct, and the insertion tube is made of plastic, so that mammary tissue cannot be damaged, false tracts cannot occur, and the insertion tube is safe and reliable; the steel needle is arranged in the insertion tube, and the steel needle retracts into the insertion tube to play a role of supporting the insertion tube, namely the insertion tube cannot be collapsed and damaged to influence the injection or extraction of the lavage fluid; the collection amount of the lavage fluid is large, and the positive rate of cytological examination is improved.

Description

Disposable lavage catheter for mammary gland pipe

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to lavage pipe for mammary gland pipe.

Background

The method is characterized in that a special medicine is not available at present for benign lesions of mammary gland such as non-lactation mastitis, mammary gland hyperplasia, mammary gland pain and the like, the mammary gland duct lavage treatment is a treatment method based on mammary gland anatomy and pathogenic factors of mammary gland diseases, normal saline (some ground-based methasone, metronidazole and the like can be properly added) is adopted for lavage of the mammary gland duct, secretion deposited in the mammary gland duct is cleaned, then an anti-inflammatory medicine is injected into the mammary gland duct, and the medicine directly acts on the mammary gland duct and is diffused to a gland body to achieve a treatment effect, so that pain and lumps are eliminated. Clinically, the No. 4 and No. 5 flat-head needles self-made by hospitals are inserted into the breast hole with the overflowing liquid, false tracts and puncture mammary tissue are easy to occur during operation, and the conditions of nipple edema, treatment failure and the like are caused. A great deal of literature reports that the curative effect of the lavage treatment under the breast (gland guide) tube endoscope is remarkable, however, the breast (gland guide) tube endoscope is a valuable medical instrument, the breast (gland guide) tube endoscope is easily damaged after being repeatedly used, the cost is high, and the operation requirement is high, which are main factors restricting the lavage treatment under the breast (gland guide) tube endoscope and causes that the lavage treatment cannot be widely developed clinically. Patent application numbers CN200820127422.5, CN201120053844.4, CN201520590020.9, CN202020539471.0, CN202020567938.2 and CN202010054063.0 refer to the breast duct irrigator, wherein a plurality of insertion tubes correspond to a plurality of inflammatory breast ducts affected by hyperplasia of mammary glands, and the irrigator has a certain curative effect after irrigation, but cannot repeatedly irrigate, namely cannot completely irrigate secretion in the breast ducts, so that the injection amount of the medicine is insufficient, the structure and the operation are relatively complex, and the cost is high.

In addition, the breast (ductus adenophorus) endoscope can directly visualize the non-space occupying lesion of the breast duct, but the positive rate of the breast (ductus adenophorus) endoscope on the tiny lesion, particularly early breast cancer, is not high, and is mainly limited in that the outer diameter of the probe of the breast (ductus adenophorus) endoscope can only be generally inserted into the mouth parts of a grade III breast duct and a grade IV breast duct, meanwhile, the breast (ductus adenophorus) endoscope often only inspects the galactophore duct and cannot see the interstitial condition outside the breast duct, part of the floccus of the ductus mammitis and the papilloma in the breast duct are difficult to identify, and certain inconsistency exists between the breast (ductus adenophorus) endoscope inspection and the pathological diagnosis due to factors of small space occupying lesion volume, easy falling in the operation, difficult material taking and the like. In the existing large number of literature reports, cytological examination of lavage fluid of a breast (adenoductal) ductoscopy can improve the positive rate of benign and malignant diagnosis of non-space-occupying lesion by assisting the cytological examination of the breast (adenoductal) ductoscopy with diagnosis, and meanwhile, in order to avoid insufficient material taking amount of the lavage fluid, the breast (adenoductal) ductoscopy needs to be repeatedly used, and the problems of high cost and high operation requirement also occur.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows: in order to solve the defects of the prior art, the utility model provides a disposable lavage catheter for mammary gland duct.

The technical scheme is as follows: the utility model provides a disposable mammary gland is lavage pipe for pipe, its characterized in that: comprises an insertion tube assembly, a cannula body and an irrigation hose; the inserting pipe assembly is a hollow pipeline, and one end of the inserting pipe assembly is inserted into the sleeve body and fixed; one end of the lavage hose is connected with the sleeve body; the insertion tube assembly, the sleeve body and the lavage hose are communicated.

As a modification, in the disposable breast duct irrigation duct, the insertion tube assembly, the cannula body and the irrigation hose are communicated to form a duct irrigation liquid injection and/or extraction channel.

As another improvement, the insertion tube assembly comprises an insertion tube and a steel needle, the steel needle is arranged in the insertion tube, and a rubber plug is arranged on the sleeve body; one end of the insert tube is communicated with the interior of the sleeve body, and the steel needle is inserted into the rubber plug for fixation. The rubber plug is arranged on the sleeve body, namely the rubber plug is arranged in the sleeve body, or the rubber plug is arranged at the end part of the sleeve body, so long as the rubber plug can play a role in fixing the steel needle and ensuring the sealing of the sleeve body, the purpose of the invention is realized. In some improvements, the insertion tube is connected with the sleeve body, and the connection is reliable; the connection mode can be glue joint or glue joint and simultaneously increase reliable connections such as crimping parts and the like. In some refinements, the steel needle is flat-ended.

As a further improvement, the insertion tube is made of plastic materials and comprises an insertion tube made of FEP materials and an insertion tube made of TPU materials; as a further improvement, the outer diameter of the insertion tube is 0.4 mm-0.75 mm, and the length is 30 mm-60 mm.

As a further improvement, the steel needle is a stainless steel capillary or a (hollow) stainless steel wire; preferably, the outer diameter of the steel needle is matched with the inner diameter of the insertion tube; in some refinements, the fit is a clearance fit.

As a further improvement, the needle tip of the steel needle is retracted into the insertion tube.

As a further improvement, the distance between the head end of the steel needle and the head end of the insertion tube is 0.5 mm-2 mm.

As another improvement, at least one irrigation channel is arranged on the sleeve body, and the irrigation hose is communicated with the irrigation channel.

As a further improvement, the irrigation hose is detachably connected or glued with the sleeve body; preferably, the irrigation hose is detachably connected or glued to the irrigation channel; preferably, the irrigation hose and the irrigation channel are detachably connected by a quick coupling. In some refinements, the glue joint may be a glue joint or a glue joint that adds a reliable joint such as a crimp.

As a further improvement, the quick connector comprises a mutually cooperating male and female luer male locking cone connector provided on the irrigation passage; after the lavage hose is inserted into the lavage channel, the lavage hose is detachably connected by using the quick connector.

As a further improvement, the number of the lavage channels and the number of the lavage hoses are both 1, one end of each lavage hose is connected with the lavage channel, and the other end of each lavage hose is connected with the tee piece; the three-way member is used to separate the irrigation fluid and the channel from which the irrigation fluid is withdrawn.

As a further improvement, the number of the lavage channels and the lavage hoses is 2, and one end of each lavage hose is connected with one lavage channel; the other end of the lavage hose can be connected with the joint piece; preferably, the fitting is connected to the other end of the irrigation hose using a luer lock.

As another improvement, a handle is further arranged on the sleeve body.

Has the advantages that: the utility model provides a disposable lavage pipe for mammary gland pipe has following outstanding advantage for prior art: (1) The outer diameter and the length of the insertion tube accord with the physiological structure of the female mammary duct, and the insertion tube is made of plastic, so that mammary tissue cannot be damaged, false tracts cannot occur, and the insertion tube is safe and reliable; (2) The steel needle is arranged in the insertion tube, and the steel needle retracts into the insertion tube to play a role of supporting the insertion tube, namely the insertion tube cannot be collapsed and damaged to influence the injection or extraction of the lavage fluid; (3) lavage can be repeated for a plurality of times, and the operation is simple; (4) The collection amount of the lavage fluid is large, and the positive rate of cytological examination is improved; (5) Is suitable for one-time use and accords with the principle of aseptic operation; and (6) the structure is simple, and the cost is low.

Drawings

Fig. 1 is a schematic view showing the structure of a disposable irrigation catheter for a mammary gland catheter in example 1.

Fig. 2 is a schematic view showing the structure of the disposable breast duct of example 1 after the irrigation hose is removed from the irrigation duct.

Fig. 3 is a schematic structural view of the lavage catheter for the disposable mammary gland catheter of example 2.

Detailed Description

The present invention will be further explained below.

The disposable lavage catheter for the mammary duct comprises an insertion tube assembly, a sleeve body 3 and a lavage hose 4; the inserting pipe assembly is a hollow pipeline, and one end of the inserting pipe assembly is inserted into the sleeve body 3 and fixed; one end of the lavage hose 4 is connected with the sleeve body 3; the insertion tube assembly, the sleeve body 3 and the lavage hose 4 are communicated to form a lavage liquid injection and extraction channel of the milk (gland duct).

The insertion tube assembly comprises an insertion tube 1 and a steel needle 2, the steel needle 2 is arranged inside the insertion tube 1, and a rubber plug 6 is arranged in the sleeve body; one end of the insertion tube 1 is communicated with the interior of the sleeve body, and the steel needle 2 is inserted into the rubber plug and fixed; the steel needle is used to support the insertion tube. The insertion tube 1 is made of plastic materials and comprises an insertion tube made of FEP materials and an insertion tube made of TPU materials; the insertion tube made of the material meets the requirement of biocompatibility. The outer diameter of the insertion tube 1 is 0.4 mm-0.75 mm, and the length is 30 mm-60 mm. The steel needle 2 is a stainless steel capillary tube or a hollow stainless steel wire; the outer diameter of the steel needle 2 is matched with the inner diameter of the insertion tube 1. The needle point of the steel needle 2 retracts into the insertion tube 1, and the distance between the needle point and the head end of the insertion tube 2 is 0.5 mm-2 mm.

The sleeve body 3 is provided with at least one lavage channel 5, and the lavage hose 4 is communicated with the lavage channel 5. The lavage hose 4 is detachably connected with the lavage channel 5 through a quick joint. The quick connector comprises a luer inner locking conical connector and a luer outer conical locking connector which are arranged on the lavage channel 5 and are matched with each other and provided with external threads; after the irrigation hose 4 is inserted into the irrigation channel 5, it is glued using a quick connector. The number of the lavage channels 5 and the lavage hoses 4 is 1, one end of each lavage hose 4 is connected with the lavage channel 5, and the other end of each lavage hose 4 is connected with the tee piece; the irrigation fluid and the channel from which the irrigation fluid is withdrawn are separated by a tee. As a further improvement, the number of the irrigation channels 5 and irrigation hoses 4 is 2, and one end of each irrigation hose 4 is connected with one irrigation channel 5; the other end of the irrigation hose 4 can be connected with a luer lock connector with external threads; separate irrigation channels 5 are used to separate the irrigation liquid injection and irrigation liquid extraction channels. The sleeve body 3 is also provided with a handle 7.

The present invention will be further described with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, this embodiment provides a disposable mammary gland irrigation catheter for pipe, including intubate 1, steel needle 2, cannula body 3, lavage hose 4, rubber buffer 6, handle 7 and tee bend, intubate 1 is connected with cannula body 3, and steel needle 2 passes rubber buffer 6 and handle 7 fixed connection, and steel needle 2 is arranged in intubate 1 and is cooperateed with it, and lavage passageway 5 of cannula body 3 is connected with lavage hose 4.

The insertion tube 1 is an FEP tube, with an outer diameter D =0.6mm and a length l =50mm.

The steel needle 2 is made of a 0Cr18Ni9 capillary tube with the outer diameter d =0.4mm, and the distance a =1mm from the head end of the insertion tube 1 to the head end of the steel needle 2.

The one end of lavage hose 4 is inserted and can be dismantled the connection in 5 quick-operation joints of lavage passageway, and the other end splices in inserting the tee bend piece, and the tee bend piece other two is provided with the interior locking cone joint of luer of external screw thread, can be connected with syringe and extraction syringe for the lavage liquid for the lavage respectively, accomplishes mammary duct lavage liquid and collects, supplies the cytology inspection.

Be provided with the interior locking cone joint of luer of external screw thread on lavage passageway 5, lavage hose 4 is connected with lavage passageway 5 through having the outer cone locking joint of female screw thread luer, but the two high-speed joint also can dismantle, can directly be used for the mammary gland pipe to wash repeatedly after removing lavage hose 4 like figure 2 to inject into the non-occupation pathological change of drug therapy to the mammary gland pipe.

Example 2

As shown in fig. 3, this embodiment provides a disposable mammary gland irrigation catheter for pipe, including intubate 1, steel needle 2, cannula body 3, lavage hose 4, rubber buffer 6, handle 7 and two-way spare, intubate 1 is connected with cannula body 3, and steel needle 2 passes rubber buffer 6 and handle 7 fixed connection, and steel needle 2 is arranged in intubate 1 and is cooperateed with it, and lavage passageway 5 of cannula body 3 is connected with lavage hose 6.

The insertion tube 1 is a TPU tube with an outer diameter D =0.7mm and a length l =35mm.

The steel needle 2 is made of a 0Cr18Ni9 capillary tube with the outer diameter d =0.45mm, and the distance a =0.8mm between the needle head of the steel needle 2 and the head end of the insertion tube 1.

The sleeve body 3 is provided with two lavage channels 5 which are respectively glued with the lavage hose 4, the other end of the lavage hose 4 is glued with the two-way piece, the two-way piece is provided with an external thread luer inner locking conical joint and can be connected with an injector, and the collection of the lavage liquid of the mammary duct is completed for cytological examination.

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

Claims

1. A disposable lavage catheter for mammary gland pipe which characterized in that: comprises an insertion tube assembly, a sleeve body (3) and an irrigation hose (4); the insert pipe assembly is a hollow pipeline, and one end of the insert pipe assembly is inserted into the sleeve body (3) for fixing; one end of the lavage hose (4) is connected with the sleeve body (3); the insertion tube assembly, the sleeve body (3) and the lavage hose (4) are communicated; the insertion tube assembly comprises an insertion tube (1) and a steel needle (2), the steel needle (2) is arranged in the insertion tube (1), and a rubber plug (6) is arranged on the sleeve body (3); one end of the insertion tube (1) is communicated with the interior of the sleeve body, and the steel needle (2) is inserted into the rubber plug (6) and fixed.

2. A single use breast irrigation catheter as recited in claim 1 wherein: the insertion tube (1) is made of plastic and comprises an insertion tube made of FEP (fluorinated ethylene propylene) and an insertion tube made of TPU (thermoplastic polyurethane).

3. A single use breast irrigation catheter as claimed in claim 1, wherein: the outer diameter of the insertion tube (1) is 0.4 mm-0.75 mm, and the length is 30 mm-60 mm.

4. A single use breast irrigation catheter as recited in claim 1 wherein: the steel needle (2) is a stainless steel capillary tube or a stainless steel wire.

5. A single use breast irrigation catheter as claimed in claim 4 wherein: the stainless steel wire is hollow.

6. A single use breast irrigation catheter as claimed in claim 1, wherein: the outer diameter of the steel needle (2) is matched with the inner diameter of the insertion tube (1).

7. A single use breast irrigation catheter as recited in claim 1 wherein: the needle point of the steel needle (2) retracts into the insertion tube (1).

8. A single use breast irrigation catheter as recited in claim 1 wherein: the distance between the head end of the steel needle (2) and the head end of the insertion tube (1) is 0.5 mm-2 mm.

9. A single use breast irrigation catheter as claimed in any of claims 1 to 8 wherein: the sleeve body (3) is provided with at least one lavage channel (5), and the lavage hose (4) is communicated with the lavage channel (5).

10. A single use breast irrigation catheter as claimed in claim 9, wherein: the lavage hose (4) is detachably connected or glued with the sleeve body (3).

11. A single use breast irrigation catheter as claimed in claim 9, wherein: the lavage hose (4) is detachably connected with the lavage channel (5) or glued.

12. A single use breast irrigation catheter as recited in claim 9 wherein: the lavage hose (4) is detachably connected with the lavage channel (5) through a quick connector.