CN111359050B

CN111359050B - Apparatus for cleaning intestinal tract before enteroscopy in gastroenterology

Info

Publication number: CN111359050B
Application number: CN202010464557.6A
Authority: CN
Inventors: 张锁娟; 梁奇镇; 莫诚柱; 王云芳
Original assignee: Shanxi Bethune Hospital
Current assignee: Shanxi Bethune Hospital
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-10-13
Anticipated expiration: 2040-05-28
Also published as: CN111888561B; CN111888561A; CN111359050A

Abstract

The invention relates to an instrument for cleaning an intestinal tract before enteroscopy in the digestive department, which comprises a tubular shell, a flexible pipe for supplying cleaning fluid, a nozzle and a valve component.

Description

Apparatus for cleaning intestinal tract before enteroscopy in gastroenterology

Technical Field

The invention belongs to the technical field of gastroenterology, and particularly relates to an instrument for cleaning intestines before enteroscopy of the gastroenterology.

Background

In clinical practice in the department of gastroenterology, cleansing enema is one of the important means for treatment, examination and preparation before operation.

Colonoscopy is a special medical instrument which can visually detect the state of colon at present, and before the enteroscopy, the cleaning work of the intestinal tract is needed to ensure that the affected part observed by the enteroscopy is accurate and clear, so that the intestinal tract cleaning is one of very important steps.

At present, the intestinal tract is cleaned by warm water or enema liquid, the existing handheld intestinal tract cleaning device has complex structure, inconvenient operation, time and labor waste, and the nozzle of the intestinal tract cleaning device is inconvenient to install and replace; especially when the user is unskilled in handling, it is difficult to insert the nozzle in an oriented manner, and the existing nozzles may accidentally slip off during use, penetrate too much, and also risk trauma or tearing of the intestine.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides an intestinal tract cleaning device before enteroscopy in the department of gastroenterology.

The intestinal tract cleaning device comprises a tubular housing, a flexible tube for supplying cleaning fluid, a nozzle, a valve member, the tubular housing being formed by two half-shells connected to each other, the tubular housing comprising a rear handle extending along a first longitudinal axis a, an intermediate arcuate portion, a front cylinder having a second longitudinal axis B coinciding with the axis of the nozzle, the rear handle, the intermediate arcuate portion, the front cylinder being connected in sequence, wherein the first longitudinal axis a and the second longitudinal axis B have an angle α, the angle of the angle α being 60 ° to 75 °; the nozzle is removably connectable to the front cylinder and the flexible tube; the valve member is configured to permit and stop the flow of cleaning liquid within the flexible tube, and includes a shaft mounted on the intermediate arcuate portion, a tap rod rotatably connected to the shaft, and a cam connected to the tap rod to stop the flow of cleaning liquid within the flexible tube when the cam presses the flexible tube against the protrusion within the housing. Preferably, the flexible tube is a tubular element made of elastically flexible material, which is mounted inside the tubular housing and extends from the end of the rear handle to the end of the front cylinder, in which flows a liquid for intestinal cleansing, which can be selected from water of suitable temperature, with which the intestinal cleansing device is connected to a common mixer with hot and cold water or other pressurized cleansing fluid source. The cylindrical end of the lower part of the nozzle is inserted into the central hole of the front cylinder, a flexible pipe is inserted into the central hole of the cylindrical end from the lower end of the cylindrical end, the flexible pipe is coaxially arranged with the front cylinder and the cylindrical end, the outer diameter of the flexible pipe substantially corresponds to the inner diameter of the cylindrical end, the outer diameter of the cylindrical end substantially corresponds to the inner diameter of the front cylinder, and the cylindrical end, the front cylinder and the flexible pipe form a sealing connection; the upper end part of the front cylinder is also provided with two longitudinally arranged retaining arms and an annular elastic piece, the retaining arms are provided with lower end parts capable of bending outwards, the annular elastic piece can enable the upper end parts of the retaining arms and the upper end part of the front cylinder to be tightly attached to the cylindrical end part, the inner wall of the lower end part of each retaining arm is transversely provided with a semicircular elastic fin, when the cylindrical end part of the lower end of the nozzle is inserted into the front cylinder, the thrust force of the lateral bending of the retaining arms needs to be overcome, and the lower ends of the cylindrical end parts are abutted to the elastic fins to form sealing connection; an annular flange and an annular shoulder portion located below the annular flange are formed between the annular shoulder portion and the annular flange, an upper end portion protrusion of the front cylinder and the retaining arm are engaged into the annular groove, an outer side of the upper end portion of the front cylinder is formed with a mounting seat in which the annular elastic member is mounted, the flexible tube can be accurately aligned with a center hole of a lower end of the nozzle when the nozzle is engaged into the front cylinder, the lower end portion of the retaining arm can be bent outward when the cylindrical end portion of the lower end of the nozzle is inserted into the front cylinder, the upper end portion protrusions of the front cylinder and the retaining arm are engaged into the annular groove after the nozzle is inserted into the front cylinder, and the retaining arm and the front cylinder can be maintained in a locked state with the nozzle by the annular elastic member, thereby firmly connecting the nozzle to the intestinal tract cleaning device and avoiding the nozzle from being separated from the intestinal tract cleaning device when in use; when the nozzle needs to be separated from the front cylinder, the nozzle can be separated from the front cylinder and the flexible pipe only by pressing the lower end parts bent outwards of the two holding arms with one hand and pulling the nozzle upwards with the other hand, and then separating the front cylinder and the upper end part bulges of the holding arms from the annular groove.

Preferably, the nozzle is provided with a cylindrical elastic buffer member supported by an annular flange on the cylindrical end portion, the cylindrical elastic buffer member being made of an elastic resin, the cylindrical elastic buffer member being compressible when the nozzle is inserted, and the buffer also serving as a liquid seal when flushing, preventing the washing liquid from escaping when injecting.

Preferably, a plurality of longitudinal ribs are formed on the inner wall of the front cylinder, the longitudinal ribs being tapered in cross section, the longitudinal ribs being capable of maintaining the cylindrical end of the nozzle in perfect alignment with the end of the flexible tube after insertion into the front cylinder, the upper end of each longitudinal rib having an inclined surface which facilitates guiding the insertion of the nozzle into the front cylinder.

Preferably, an annular rib is provided on the inner wall of the rear handle, and a stopper is provided on the flexible tube, the annular rib being capable of preventing the stopper from sliding rearward.

The invention can achieve the following beneficial effects:

the intestinal tract cleaning device is convenient for a user to accurately insert the intestinal tract cleaning device into the intestinal tract, and the nozzle can be firmly connected to the intestinal tract cleaning device after being inserted into the front cylinder, so that the nozzle is prevented from being separated from or excessively penetrated through the intestinal tract cleaning device during use; when the nozzle needs to be replaced, the lower end part of the outward bending of the two holding arms and the nozzle upwards pulled by the other hand are pressed by one hand, and the separation of the nozzle from the front cylinder and the flexible pipe can be realized.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention

FIG. 2 is a cross-sectional view of FIG. 1

FIG. 3 is a sectional view of the structure taken in the direction 3-3 in FIG. 2

FIG. 4 is a schematic view of the front cylinder

FIG. 5 is a detail view of the front cylinder

FIG. 6 is a sectional view of the structure taken in the direction of 6-6 in FIG. 4

FIG. 7 is a schematic view of the installation of the flexible tube at the rear handle

Wherein: 10 tubular housing, 10.1 rear handle, 10.2 middle arcuate section, 10.3 front cylinder, 11 nozzle, 12 flexible tube, 13 valve member, 14 poker rod, 15 shaft, 16 cam, 17 projection, 18 elastic fin, 19 retaining arm, 20 annular groove, 21 annular shoulder, 22 cylindrical end, 23 annular elastic element, 24 mounting seat, 25 longitudinal rib, 26 inclined plane, 27 annular flange, 28 cylindrical elastic buffer, 10A rear handle end, 10B front cylinder end, 30 stop, 31 annular rib.

Detailed Description

As shown in fig. 1-4, the intestinal cleansing device comprises a tubular housing 10, a flexible tube 12 for supplying cleansing fluid, a nozzle 11, a valve member 13, said tubular housing 10 being formed by two half-shells connected to each other, said tubular housing 10 comprising a rear handle 10.1 extending along a first longitudinal axis a, an intermediate arcuate portion 10.2, a front cylinder 10.3 having a second longitudinal axis B coinciding with the axis of said nozzle 11, said rear handle 10.1, intermediate arcuate portion 10.2, front cylinder 10.3 being connected in sequence, wherein the first longitudinal axis a has an angle α with the second longitudinal axis B, the angle of the angle α being 60 ° to 75 °; said nozzle 11 being removably connectable to the front cylinder 10.3 and to the flexible tube 12; the enteral cleaning device further comprises a manually operable valve member 13, said valve member 13 being configured to allow and stop the flow of cleaning liquid in the flexible tube 12, said valve member 13 comprising a shaft 15 mounted on the intermediate arcuate portion 10.2, a tap lever 14 in rotational connection with the shaft 15, and a cam 16 connected to the tap lever 14, the cam 16 being movable by a user when tapping the tap lever 14 forwards or backwards (see fig. 2) between a rear position, in which the cam 16 presses the flexible tube 12 against a protrusion 17 in the housing 10, at which point the flow of cleaning liquid in the flexible tube 12 stops, and a front position, shown in broken lines, in which the cam 16 releases the flexible tube 12 to allow the flow of cleaning liquid towards the injection nozzle 11. A flexible tube 12 is a tubular element made of an elastic flexible material, the flexible tube 12 being mounted inside the tubular housing 10 and extending from the end 10A of the rear handle 10.1 to the end 10B of the front cylinder 10.3, in which flexible tube 12 flows a liquid for bowel cleansing, which can be selected from water of suitable temperature, the bowel cleansing apparatus being connected by means of the flexible tube 12 to a common mixer of hot and cold water or other pressurized cleansing fluid source. The cylindrical end 22 of the lower part of said nozzle 11 is inserted into the central hole of the front cylinder 10.3, the flexible tube 12 is inserted into the central hole of the cylindrical end 22 from the lower end of the cylindrical end 22, the flexible tube 12 is arranged coaxially with the front cylinder 10.3, the cylindrical end 22, the outer diameter of the flexible tube 12 substantially corresponds to the inner diameter of the cylindrical end 22, the outer diameter of the cylindrical end 22 substantially corresponds to the inner diameter of the front cylinder 10.3, said cylindrical end 22, said front cylinder 10.3 and said flexible tube 12 form a sealed connection; the upper end of the front cylinder 10.3 is also provided with two longitudinally arranged retaining arms 19 and an annular elastic piece 23, the retaining arms 19 are provided with lower ends capable of bending outwards, the annular elastic piece 23 can tightly attach the upper ends of the retaining arms 19 and the upper end of the front cylinder 10.3 to the cylindrical end 22, the inner wall of the lower end of each retaining arm 19 is transversely provided with a semicircular elastic fin 18, the cylindrical end 22 of the lower end of the nozzle 11 is inserted into the front cylinder 10.3 to overcome the thrust force of the lateral bending of the retaining arms 19, and the lower end of the cylindrical end 22 abuts against the elastic fins 18 to form a sealing connection; the outer side of the upper end of said cylindrical end 22 has an annular flange 27 and an annular shoulder 21, said annular shoulder 21 being located below the annular flange 27, an annular groove 20 being formed between said annular shoulder 21 and the annular flange 27, the front cylinder 10.3 and the upper end projection of the retaining arm 19 each snapping into said groove 20, the outer side of the upper end of said front cylinder 10.3 being formed with a mounting seat 24, said annular elastic member 23 being mounted in the mounting seat 24, the flexible tube 12 being able to be correctly aligned with the central hole of the lower end of the nozzle 11 when the nozzle 11 is engaged in the front cylinder 10.3, the lower end of the retaining arm being able to flex outwards when said cylindrical end of the nozzle lower end is inserted in said front cylinder, the upper end projections of said front cylinder and said retaining arm each snapping into said annular groove after said nozzle is inserted in the front cylinder, meanwhile, the annular elastic piece can keep the retaining arm and the front cylinder and the nozzle in a locking state, so that the nozzle is firmly connected to the intestinal tract cleaning device, and the nozzle is prevented from being separated from the intestinal tract cleaning device in use; when the nozzle needs to be replaced, the lower end parts of the two holding arms which are bent outwards are pressed by one hand, meanwhile, the nozzle is pulled upwards by the other hand, the front cylinder and the upper end part bulges of the holding arms are separated from the annular groove, and then the separation of the nozzle from the front cylinder and the flexible pipe can be realized.

As shown in fig. 3, the nozzle 11 is provided with a cylindrical elastic buffer 28, the cylindrical elastic buffer 28 is supported by an annular flange 27 on the cylindrical end portion 22, the cylindrical elastic buffer 28 is made of elastic resin, the cylindrical elastic buffer 28 can be compressed when the nozzle 11 is inserted, and the buffer 28 also functions as a sealing liquid to prevent the washing liquid from escaping during injection when washing.

As shown in fig. 5-6, on the inner wall of said front cylinder 10.3 a plurality of longitudinal ribs 25 are formed, said longitudinal ribs 25 being tapered in cross-section, said longitudinal ribs 25 being able to keep the cylindrical end 22 of the nozzle 11 perfectly aligned with the end of the flexible tube 12 after insertion into the front cylinder 10.3, the upper end of each longitudinal rib 25 having an inclined surface 26 which facilitates the introduction of the nozzle 11 into the front cylinder 10.3.

As shown in fig. 7, an annular rib 31 is provided on the inner wall of the rear handle 10.1 and a stopper 30 is provided on the flexible tube 12, the annular rib 31 being capable of preventing the stopper 30 from sliding backwards.

The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. An apparatus for cleaning the intestine prior to enteroscopy in gastroenterology, said apparatus comprising a tubular housing (10), a flexible tube (12) for supplying a cleaning fluid, a nozzle (11), a valve member (13), characterized in that: the tubular housing (10) is made up of two half-shells connected to each other, the tubular housing (10) comprising a rear handle (10.1) extending along a first longitudinal axis a, an intermediate arcuate portion (10.2), a front cylinder (10.3) having a second longitudinal axis B coinciding with the axis of the nozzle (11), the rear handle (10.1), the intermediate arcuate portion (10.2), the front cylinder (10.3) being connected in sequence, wherein the first longitudinal axis a and the second longitudinal axis B have an angle α, the angle of the angle α being 60 ° to 75 °; the nozzle (11) being removably connectable with the front cylinder (10.3) and the flexible tube (12); the flexible tube (12) is mounted inside the tubular housing (10) and extends from the end (10A) of the rear handle (10.1) to the end (10B) of the front cylinder (10.3); the front cylinder (10.3) has two longitudinally extending U-shaped grooves, two retaining arms (19) and an annular spring element (23), the two retaining arms (19) being mounted in the two U-shaped grooves, respectively, both retaining arms (19) having outwardly bendable lower ends, the annular elastic piece (23) can tightly attach the upper end parts of the two retaining arms (19) and the upper end part of the front cylinder (10.3) to the cylindrical end part (22) of the lower part of the nozzle (11), a semicircular elastic fin (18) is transversely arranged on the inner wall of the lower end of each retaining arm (19), the lower ends of both retaining arms (19) can be bent outwards when the cylindrical end (22) of the lower part of the nozzle (11) is inserted into the front cylinder (10.3), the lower end of the cylindrical end portion (22) forms a hermetic connection when abutting against the elastic fin (18); the upper end of the cylindrical end portion (22) is provided with an annular flange (27) and an annular shoulder (21) on the outer side, the annular shoulder (21) being located below the annular flange (27), an annular groove (20) being formed between the annular shoulder (21) and the annular flange (27), the upper end projection of the front cylinder (10.3) and the upper end projections of the two retaining arms (19) each snap into the annular groove (20), the outer side of the upper end of the front cylinder (10.3) is provided with a mounting seat (24), the annular elastic piece (23) is mounted in the mounting seat (24), -after the insertion of the nozzle (11) into the front cylinder (10.3), the two retaining arms (19) and the front cylinder (10.3) can be kept locked with the nozzle (11) by means of the annular elastic element (23); when the nozzle (11) needs to be replaced, the user can detach the nozzle (11) from the front cylinder (10.3) and the flexible tube (12) by pressing the outwardly bent lower ends of the two retaining arms (19) with one hand while pulling the nozzle (11) upwards with the other hand; -a cylindrical end portion (22) of the lower part of the nozzle (11) is inserted into a central hole of the front cylinder (10.3), -the flexible tube (12) is inserted into the central hole of the cylindrical end portion (22) from a lower end opening of the cylindrical end portion (22), -the flexible tube (12) is arranged coaxially with the front cylinder (10.3) and the cylindrical end portion (22), -the outer diameter of the flexible tube (12) substantially corresponds to the inner diameter of the cylindrical end portion (22), -the outer diameter of the cylindrical end portion (22) substantially corresponds to the inner diameter of the front cylinder (10.3), -the cylindrical end portion (22) and the front cylinder (10.3) form a sealed connection with the flexible tube (12); the valve member (13) is configured to allow or stop the flow of washing liquid inside the flexible tube (12), the valve member (13) comprising a shaft (15) mounted on the intermediate arcuate portion (10.2), a tap lever (14) in rotational connection with the shaft (15) and a cam (16) connected with the tap lever (14), the cam (16) being capable of pressing the flexible tube (12) against a protrusion (17) of the inner wall of the tubular housing (10).

2. The apparatus according to claim 1, wherein the apparatus is adapted to clean the intestine prior to enteroscopy in a gastroenterology unit, the apparatus comprising: the flexible tube (12) is a tubular element made of an elastically flexible material.

3. The apparatus according to claim 1, wherein the apparatus is adapted to clean the intestine prior to enteroscopy in a gastroenterology unit, the apparatus comprising: a cylindrical elastomeric damper (28) is provided on the nozzle (11), the cylindrical elastomeric damper (28) being supported by the annular flange (27) on the cylindrical end portion (22).

4. The apparatus according to claim 3, wherein the apparatus is adapted to clean the intestine prior to enteroscopy in a gastroenterology unit, the apparatus comprising: the cylindrical elastic buffer member (28) is made of an elastic resin.

5. The apparatus according to claim 1, wherein the apparatus is adapted to clean the intestine prior to enteroscopy in a gastroenterology unit, the apparatus comprising: a plurality of longitudinal ribs (25) are formed on the inner wall of the front cylinder (10.3), the longitudinal ribs (25) are tapered in cross section, and the upper end of each longitudinal rib (25) has an inclined surface (26).

6. The apparatus according to claim 1, wherein the apparatus is adapted to clean the intestine prior to enteroscopy in a gastroenterology unit, the apparatus comprising: an annular rib (31) is arranged on the inner wall of the rear handle (10.1), a stop device (30) is arranged on the flexible pipe (12), and the annular rib (31) can prevent the stop device (30) from sliding backwards.