CN117225829A - Inner hole cleaning device - Google Patents

Abstract

The invention relates to an inner hole cleaning device which is characterized by comprising a longitudinal rod and a sheath, wherein the sheath is hollow and tubular, the longitudinal rod is provided with a proximal end and a distal end, the distal end is provided with a scraper, the scraper comprises a flexible fin layer and a flexible disc, the flexible fin layer is closer to the distal end of the longitudinal rod than the flexible disc, the flexible fin layer comprises two or more flexible fins, an edge opening is formed between two adjacent flexible fins of the flexible fin layer, the flexible fins and the flexible disc are made of non-water-absorbing materials, the longitudinal rod passes through the sheath, the longitudinal rod and the sheath can relatively move back and forth along an axis so as to enable the scraper to extend out of or retract into the sheath, and when the scraper is outside the sheath, the top edges of the flexible fins and the flexible disc are outside the inner surface of the sheath. The invention has the advantages of cleaning without damaging the inner surface, good cleaning effect, repeated use, simple operation and simple structure.

Description

Inner hole cleaning device

Technical Field

The invention relates to the technical field of cleaning devices, in particular to an inner hole cleaning device.

Background

For simplicity of disclosure, the term hollow shape will be used to refer to a hole, tube, catheter, tube, cannula, cavity, or trocar, and is represented in the drawings as a simple cylinder. Cleaning the inner surface of the hollow shape is a form of maintenance required for cleaning. The prior art has a number of devices for cleaning the inner surface of a hollow shape.

In the oil, gas, sewer and water industries, pipes or conduits are typically cleaned by autonomous equipment to clean the interior surfaces by mechanical scraping or grinding. Such a remotely controlled or autonomous device may be driven or moved by fluid pressure to travel from one end of the conduit or duct to the other to complete the desired cleaning area.

For firearms and armies, holes are typically cleaned using a shaped wire brush with brass bristles emanating radially from a common shaft, pushed or pulled through the holes, removing contaminants from the inner surface. After brushing of the inner surface, the shape of the water absorbing material, such as a cloth, is pushed and/or pulled to deposit compatible lubricant and remove any fine particles remaining after the brushing.

In the medical field, the prior art, after cleaning the bore or cannula portion of the trocar, prohibits the use of disposable devices for cleaning and reuse because they use initially dry absorbent materials that become saturated with biological material. For minimally invasive procedures, various types of hollow shapes, such as holes, tubes, cannulas, lumens, or trocars, are used as ports through which instruments and endoscopes enter the biological abdomen cavity to access the interior. An endoscope with a camera and light source at the distal end must enter a clean hollow shape to prevent contamination from impeding the clear camera view of the surgical site of the surgeon.

The prior art devices and methods for cleaning hollow shapes are not reusable, for example: 1) A thin rod-like member attached to the distal end with a sufficiently soft dry material, typically made of synthetic foam shape, organic spun fibers or wrapped gauze; 2) A larger rod-like member sized to closely fit the hollow shape has a series of dry absorbing rings spaced apart at the distal end of the rod-like member. The prior art cleaning device uses linear reciprocating motion in combination with rotation as a cleaning technique inside the hollow shape. The disposable device, which uses a drying medium to absorb liquid, collect contaminants and become saturated, leaves debris or stains on the inner surface when returned through the hollow shape. Since the device is disabled for cleaning, additional cleaning is required to remove dirt and residual debris before the endoscope is inserted into the hollow shape, requiring the use of a second or third disposable set. In the prior art, saturated absorbent materials are not able to obtain a contamination-free scraping surface when passing through the hollow shape.

In the medical field of minimally invasive surgery, such as laparoscopy, surgeons mainly use trocars with hollow-shaped cannulas or holes to pass endoscopes through the biological abdominal wall to view the internal biological abdominal cavity. The hollow shape has a seal at the proximal end to retain the inhaled gas to dilate the biological pelvis and prevent the inhaled gas from escaping the dilated biological pelvis when no instruments or devices are inserted. The endoscope includes a camera lens and a light source for viewing and illuminating a dark lumen of a biological abdominal cavity. The hollow shape is inserted into the abdominal wall by making a small incision in the epidermis.

The hollow shape incorporates an internally detachable sharp piercing member to push through the epidermal incision and over the fat layer and musculature until piercing the internal peritoneum, lining found in the bio-abdominal pelvic cavity. Said puncturing of said tissue causes minor damage to tissue and blood vessels, producing a quantity of blood drainage; thus, when the removable sharp piercing member is contaminated with blood and is withdrawn through the hollow shape, a volume of blood is transferred onto the inner surface of the hollow shape.

The inner surface must be cleaned prior to insertion of the endoscope to clearly see the interior of the biological abdomen cavity; otherwise, the blood contaminants may obstruct the surgeon's camera view and light emission. After the inner surface of the hollow shape is sufficiently cleaned, the endoscope can be inserted to view the biological abdomen cavity.

When biological materials such as blood, irrigation saline, anatomical tissue, and mucous materials contaminate the endoscope during surgery, there is a second surgical condition in which the interior surface of the hollow shape is contaminated.

During surgery, the endoscope is susceptible to contamination near the surgical site due to the accumulation of splattered debris and ejected liquid. As a result, the distal end of the endoscope is contaminated and obstructs the surgeon's camera view. Cleaning the camera lens and the light source requires removing the endoscope from the hollow shape and wiping the distal end of the endoscope with a cleaning medium external to the living organism. Removal of the contaminated endoscope through the hollow shape contaminates the inner wall of the hollow shape. The hollow shape remains in place and the interior surfaces must be adequately cleaned in an efficient manner prior to reinsertion of the endoscope for surgery. The prior art disposable devices use absorbent materials that are saturated and can soil the inner surface of the hollow shape during removal.

Disclosure of Invention

In order to solve the above problems, the present invention provides an inner hole cleaning device to improve cleaning effect and operation convenience, and designed to be reusable.

In order to achieve the above object, the present invention provides an inner hole cleaning device, which is characterized by comprising a longitudinal rod and a sheath, wherein the sheath is hollow and tubular, the longitudinal rod has a proximal end and a distal end, the distal end is provided with a scraper, the scraper comprises a flexible fin layer and a flexible disc, the flexible fin layer is closer to the distal end of the longitudinal rod than the flexible disc, the flexible fin layer comprises two or more flexible fins, an edge opening is formed between two adjacent flexible fins of the flexible fin layer, the flexible fins and the flexible disc are made of non-water-absorbing materials, the longitudinal rod passes through the sheath, and the longitudinal rod and the sheath can relatively move back and forth along an axis so as to enable the scraper to extend out of or retract into the sheath, and when the scraper is outside the sheath, the top edges of the flexible fins and the flexible disc are outside the inner surface of the sheath.

According to the inner hole cleaning device provided by the invention, when the scraper is arranged outside the sheath, the longitudinal rod and the sheath are inserted together and pass through the inner hole of the hollow shape, pollutants on the inner surface of the hollow shape are scraped to the scraper, the inner surface of the hollow shape is cleaned, then the scraper collecting the pollutants is retracted into the sheath, the longitudinal rod and the sheath are withdrawn together and withdrawn from the hollow shape, the pollutants are isolated in the sheath in the withdrawal process, the pollutants cannot cause secondary pollution to the inner surface of the hollow shape, the inner surface of the hollow shape is thoroughly cleaned, the cleaning effect is good, the scraper extends out of the sheath, the inner surface of the sliding sleeve is cleaned in the process, and finally the scraper can be repeatedly used after being washed. The invention has the advantages of cleaning without damaging the inner surface, good cleaning effect, repeated use, simple operation and simple structure.

Further, the flexible fin layers are multiple and are arranged along the axial direction of the longitudinal rod in a separated mode, and the edge openings on different flexible fin layers gradually decrease from the distal end of the longitudinal rod to the flexible disc. The scraper cleans and collects pollutants and is dispersed to the flexible disc and the flexible fin layers, so that the pollutants can be prevented from overflowing and leaking, and the cleaning effect is further improved.

Drawings

FIG. 1 is a perspective view of an inner bore cleaning device and trocar;

FIG. 2 is a perspective view of the bore cleaning device and hollow shape;

FIG. 3 is an end view of the bore cleaning device and hollow shape;

FIG. 4 is a schematic view of the structure of the longitudinal bar and scraper;

FIG. 5 is a state diagram of the bore cleaning device not inserted into the hollow shape;

FIG. 6 is a cross-sectional view taken along A-A of FIG. 5;

FIG. 7 is a state diagram of the insertion of the bore cleaning device into the hollow shape;

FIG. 8 is a B-B cross-sectional view of FIG. 7;

FIG. 9 is a state diagram of the scraper blade and sheath after passing through the hollow shape;

FIG. 10 is a state diagram of the scraper retracted into the sheath;

FIG. 11 is a state diagram of the bore cleaning device exiting the hollow shape;

FIG. 12 is a D-D sectional view of FIG. 11;

FIG. 13 is a schematic structural view of a sheath;

FIG. 14 is a C-C cross-sectional view of FIG. 13;

FIG. 15 is a schematic view of the structure of an integrated longitudinal bar;

FIG. 16 is an E-E cross-sectional view of FIG. 15;

FIG. 17 is a schematic view of the construction of an integrated sheath;

fig. 18 is a cross-sectional view taken in the direction F-F of fig. 17.

Detailed Description

For the purpose of describing the preferred embodiments of the present invention, the following description will refer to medical procedures, particularly laparoscopic procedures as previously described. In the drawings, there is shown and described a preferred embodiment for laparoscopic surgery; however, although the present invention is described in the preferred embodiment, it is not limited to the preferred embodiment and may be used for cleaning various types of hollow shapes.

Fig. 1 shows a bore cleaning device and a trocar 60 for use with the bore cleaning device. The bore cleaning device comprises a longitudinal rod 50 and a sheath 30, the longitudinal rod 50 having a proximal end provided with a first proximal structure 52 and a distal end 58, the distal end 58 being provided with a scraper 10. The sheath 30 is hollow and tubular, and is sleeved outside the longitudinal rod 50 and coaxial with the longitudinal rod 50. The longitudinal rod 50 passes through the sheath 30, and the longitudinal rod 50 and the sheath 30 can relatively move back and forth along the axial direction of the two, so that the scraper 10 can extend or retract into the sheath 30. There is a travel distance 66 between the longitudinal rod 50 and the sheath 30 from at least the first position 62 to the second position 64, as shown in fig. 5. The trocar 60 includes a hollow shape 40, the hollow shape 40 being hollow tubular with an inner bore therethrough along an axial direction, the hollow shape 40 having a hollow shaped proximal end 41 and a hollow shaped distal end 49, the hollow shaped proximal end 41 being provided with an attachment structure as shown in phantom lines in the drawing.

Referring to fig. 2, 3 and 4, the taping knife 10 includes a plurality of flexible fin layers and a plurality of flexible discs 16, the flexible fin layers being disposed closer to the distal end 58 of the longitudinal bar 50 than the flexible discs 16. Each flexible fin layer includes four flexible fins 14 with an edge opening 12 formed between two adjacent flexible fins 14. The flexible fins 14 of each flexible fin layer are identical in shape and are arranged at equal intervals, and an included angle 19 of 90 degrees is formed between two adjacent flexible fins 14. The size of the included angle 19 formed between two adjacent flexible fins is related to the number of the flexible fins, and the larger the number of the flexible fins is, the smaller the included angle 19 is. A plurality of flexible fin layers are disposed at intervals along the axial direction of the longitudinal rod 50 with a distance between adjacent two flexible fin layers. From the distal end 58 of the longitudinal rod to the flexible disk 16, the edge openings 12 on the different flexible fin layers gradually decrease and the area of the flexible fins 14 gradually increases. The number of flexible fins 14 of all flexible fin layers is the same, and flexible fins 14 on different flexible fin layers are opposite in the axial forward direction of the longitudinal rod, and side edges of a lower flexible fin 14 and side edges of an adjacent upper flexible fin 14 form a margin 15. The number of flexible fins included in the flexible fin layer is not limited to four in this embodiment, and may be two or more, and the flexible fins in the same flexible fin layer may be different in shape or may be arranged at unequal intervals. The flexible disks 16 are disk-shaped, but not limited to disk-shaped, have uninterrupted circumferences and no surface openings, and are not limited to four in number, and are spaced apart from each other, with a certain spacing between adjacent two flexible disks 16. When the doctor blade 10 is outside the sheath 30, the top edges of the flexible fins 14 and flexible disk 16 are outside the inner surface of the sheath 30, i.e. the diameter of the flexible fins 14 and flexible disk 16 is slightly larger than the inner diameter of the sheath 30, as shown in fig. 6 and 8. The flexible fins 14 and flexible disk 16 have a certain flexibility and elasticity, and can scrape and clean the wall surface without damaging the wall surface, and can be retracted into the sheath 30 by deformation, as shown in fig. 10 and 12. The flexible fins 14 and flexible disk 16 are made of a non-water absorbent material and can be rinsed and reused multiple times.

Referring to fig. 4 and 6, a sheath supporting disk 18 is provided on the longitudinal rod 50 for supporting the sheath 30 and maintaining the longitudinal rod 50 coaxial with the sheath 30 to reduce friction between the doctor blade 10 and the inner surface of the sheath 30 when the doctor blade 10 moves within the sheath 30. The longitudinal rod 50 has a small stem portion 51 of smaller diameter near its distal end 58, the small stem portion 51 being between a proximal step 57 and a distal step 59 of the longitudinal rod 50. The flexible fins 14, flexible disk 16 and sheath support disk 18 are co-located on the sleeve 11, the sleeve 11 being fitted over the small shank portion 51 of the longitudinal rod 50, the sleeve 11 being defined between the proximal step 57 and the distal step 59 to prevent the sleeve 11 from falling off the longitudinal rod 50. The flexible fins 14, flexible disk 16 and jacket support disk 18 may be provided together on the sleeve 11 or may be provided separately on different sleeves. The flexible fins 14, flexible disk 16 and jacket support disk 18 may be integrally formed with the sleeve or may be integrally formed and then connected together.

Referring to fig. 2 and 6, sheath 30 has an outer surface 32, an inner surface 34, and a distal end 36, and the thickness between outer surface 32 and inner surface 34 should be as thin as possible. The hollow shape 40 has a hollow shape outer surface 48, a hollow shape proximal end 41, a hollow shape distal end 49, and a hollow shape inner surface 42, the hollow shape inner surface 42 having debris 44 shown as a contour shape and stains 46 shown as parallel short lines. Referring to fig. 8, sheath outer surface 32 has a diameter slightly smaller than the diameter of hollow shape inner surface 42, and sheath 30 can be inserted into hollow shape 40 and can be moved back and forth within hollow shape 40. The wall thickness of the jacket 30 between the inner surface 34 and the outer surface 32 is as thin as possible to minimize friction on the flexible fins 14 and flexible disk 16. The flexible fins 14 and flexible disk 16 have a diameter slightly larger than the diameter of the hollow-shaped inner surface 42, and the flexible fins 14 and flexible disk 16 are insertable into the hollow shape 40 by deformation and can be moved back and forth in the hollow shape 40 to scrape the debris 44 and dirt 46 from the hollow-shaped inner surface 42 without damaging the hollow-shaped inner surface 42 while cleaning.

Referring to fig. 1, the proximal end of the longitudinal rod 50 is provided with a first proximal structure 52 for a person or machine to operate the longitudinal rod 50 to move the longitudinal rod 50. The proximal end of the sheath 30 is provided with a second proximal structure 54 for a person or machine to manipulate the sheath 30 to move the sheath 30. Referring to fig. 13 and 14, sheath 30 has a proximal forming ring 39, but is not limited to a ring, to allow sheath 30 to be mounted to second proximal structure 54. The proximal end of the sheath 30 is also provided with a central passage 38 for the passage of a longitudinal rod 50 therethrough. The first proximal structure 52 and the second proximal structure 54 are collectively referred to as proximal structures, which remain outside of the living body. Fig. 11 does not depict a specific proximal structure, only the region of the proximal structure is depicted.

The longitudinal bars are made of various organic or thermoplastic materials, respectively, using manufacturing or injection molding techniques; the sheath is preferably made of polyolefin, but is not limited to extruded polyolefin thermoplastic materials having thin walls and transparent color; depending on the application, the doctor blade is made of an elastomeric material such as a thermoset or thermoplastic, respectively, by casting or injection molding.

The operation of the present invention is briefly described below with reference to the accompanying drawings. At the start of the cleaning operation, the blade 10 is outside the sheath 30, see fig. 5 and 6. The sheath 30 is inserted into the interior of the hollow shape 14 along with the longitudinal rod 50 from the hollow shape proximal end 41 and continues to move toward the hollow shape distal end 49, the flexible fins 14 and flexible disk 16 scrape against the hollow shape inner surface 42, the debris 44 and dirt 46 on the hollow shape inner surface 42 scrape against the flexible fins 14 and flexible disk 16, and the debris 44 and dirt 46 scraped against the flexible fins 14 and flexible disk 16 are referred to as scraper-collected contaminants 45, as shown in fig. 8. The sheath 30 and longitudinal rod 50 continue to move together until the distal end 36 of the sheath 30, flexible fins 14 and flexible disk 16 extend outside of the hollow shaped distal end 49, as shown in fig. 9. The top edge region of the flexible fins 14 closest to the distal end 58 is covered with contaminants 45, while the subsequent side edge regions of the flexible fins 14 are covered with contaminants 43 as the contaminants pass through the edge openings 12, and finally, the flexible disk 16 collects and scrapes off any subsequent remaining contaminants 47. Debris 44 and dirt 46 on the hollow-shaped inner surface 42 are collected onto the flexible fins 14 and flexible disk 16 in a progressive manner, thereby cleaning the hollow-shaped inner surface 42 and preventing the accumulation of the collected contaminants. The sheath 30 and the longitudinal rod 50 are then moved relative to each other, causing the flexible fins 14 and flexible disk 16 to retract inside the sheath 30, and contaminants accumulated on the flexible fins 14 and flexible disk 16 are isolated inside by the sheath 30, as shown in fig. 10. The sheath 30 is then withdrawn from the hollow shape 40 with the longitudinal rod 50, as shown in fig. 12, and the collected contaminants are not in contact with the hollow shape inner surface 42 during withdrawal, as the collected contaminants are isolated inside the sheath 30, and the hollow shape inner surface 42 is not contaminated again. After the sheath 30 and the longitudinal rod 50 are withdrawn from the hollow shape 40, the sheath 30 and the longitudinal rod 50 are moved relative to each other, the flexible fins 14 and flexible disk 16 extend beyond the distal end 36 of the sheath 30, cleaning the inner surface 34 of the sheath 30, carrying the collected contaminants out of the sheath 30, and flushing the contaminants away.

Referring to fig. 15 and 16, the longitudinal rod 50, the first proximal structure 52, the flexible fins 14, the flexible disk 16, and the sheath support disk are integrally formed to form a unitary longitudinal rod 53.

Referring to fig. 17 and 18, sheath 30 and second proximal structure 54 are integrally formed to form a unitary sheath 30.

When the scraper is arranged outside the sheath, the longitudinal rod and the sheath are inserted together and pass through the inner hole of the hollow shape, pollutants on the inner surface of the hollow shape are scraped to the scraper, the inner surface of the hollow shape is cleaned, then the scraper collecting the pollutants is retracted into the sheath, the longitudinal rod and the sheath are withdrawn from the hollow shape together, the pollutants are isolated in the sheath in the withdrawal process, the pollutants cannot cause secondary pollution to the inner surface of the hollow shape, the inner surface of the hollow shape is thoroughly cleaned, the cleaning effect is good, the scraper extends out of the sheath, the inner surface of the sliding sleeve is cleaned in the process, and finally the scraper can be repeatedly used after being washed clean. The scraper cleans and collects pollutants and is dispersed to the flexible disc and the flexible fin layers, so that the pollutants can be prevented from overflowing and leaking, and the cleaning effect is further improved. The invention has the advantages of cleaning without damaging the inner surface, good cleaning effect, repeated use, simple operation and simple structure.

As will be appreciated by those skilled in the art, the present invention is applicable to cleaning hollow shaped inner surfaces of various sizes, primarily for, but not limited to, medical use, but also for other industries having hollow shapes and for non-abrasive cleaning devices for scraping inner surfaces.

Claims (9)

1. The utility model provides an hole cleaning device, its characterized in that includes longitudinal rod and sheath, and the sheath is hollow tubular, and the longitudinal rod has proximal end and distal end, the distal end is equipped with the scraper, the scraper includes flexible fin layer and flexible dish, and flexible fin layer is closer to the distal end of longitudinal rod than flexible dish, and flexible fin layer includes two or more flexible fins, forms the edge opening between two adjacent flexible fins of flexible fin layer, flexible fin and flexible dish are by non-hydroscopic material preparation, and the longitudinal rod passes from in the sheath, can follow the relative back and forth movement of axle between longitudinal rod and the sheath, so that the scraper stretches out or withdraws back and forth the sheath, when the scraper is in the sheath outside, flexible fin and flexible dish's top edge is in the outside of sheath internal surface.

2. The bore cleaning device of claim 1, wherein the flexible fin layers are a plurality of and are spaced apart along the axial direction of the longitudinal rod, the edge openings on different flexible fin layers tapering from the distal end of the longitudinal rod to the flexible disk.

3. The bore cleaning apparatus of claim 2, wherein the longitudinal rod is provided with a sheath support disc for supporting the sheath and maintaining the longitudinal rod coaxial with the sheath.

4. A bore cleaning device according to claim 3, wherein the flexible fins of the same flexible fin layer are identical in shape and equally spaced along the circumferential direction of the longitudinal rod.

5. The bore cleaning device of claim 4, wherein the number of flexible fins of all flexible fin layers is the same, the flexible fins on different flexible fin layers being opposed in the axial forward direction of the longitudinal rod.

6. The bore cleaning device of claim 5, wherein the longitudinal rod has a small stem portion of smaller diameter near its distal end, the flexible fins and flexible disc being disposed on a sleeve that fits over the small stem portion.

7. The bore cleaning apparatus of claim 6, wherein the sheath support disc is disposed on the sleeve.

8. The bore cleaning apparatus of claim 3, wherein the flexible fins, flexible disc, sheath support disc and sleeve are integrally formed.

9. A bore cleaning apparatus as claimed in claim 3, wherein the longitudinal bars, flexible fins, flexible discs and sheath support discs are integrally formed.