CN211381478U

CN211381478U - Excrement collector

Info

Publication number: CN211381478U
Application number: CN201921999466.1U
Authority: CN
Inventors: 姚国荣; 蒋巧平
Original assignee: First Affiliated Hospital of Zhejiang University School of Medicine
Current assignee: First Affiliated Hospital of Zhejiang University School of Medicine
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-09-01
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to the field of medical equipment, especially a fecal collector. Gather in relying on the intestinal canal to current collector, gather injury intestinal mucosa and the complicated scheduling problem of seal structure many times, the utility model provides a fecal collector, be the open anus swab in tubulose and front end closure rear end including one, but the intracavity is equipped with the piston of back-and-forth movement, be fixed with the sleeve pipe that extends to the rear end on the piston, sleeve pipe one end and the outer upper cover rigid coupling of anus swab rear end, establish the lower cover between upper cover and the anus swab rear end, it passes sleeve pipe and piston and stretches into the anus lumen to cover to establish the connecting rod down, the connecting rod stretches into the end and is equipped with the storage pocket that matches with anus swab lumen blind end shape, be equipped with the indent bowl chamber that can contain the material on the storage pocket, the storage pocket is equipped with the flange that corresponds with the side opening at bowl chamber border. The utility model discloses a negative pressure suction improves once and gathers the success rate, reduces and gathers number of times protection sick child intestinal mucosa to keep apart the collection sample with simpler seal structure.

Description

Excrement collector

Technical Field

The utility model relates to the field of medical equipment, especially a fecal collector.

Background

Traditional anus swab is long 15cm, diameter 7mm, and the transparent plastic pipe of 1mm of tube wall thickness, and the front end is uncovered for hemispherical blind end rear end that closes, and there is a excrement collecting hole the pipe side that the blind end corresponds, lightly packs people's anus during the collection and then the rotatory sampling of deepening about 8 ~ 10cm, and the sampling is taken out and is put into dry test tube and then is submitted inspection. There are a number of problems with the use of such an anal swab: the rotary defecation is needed during operation, and for diarrhea children who are often accompanied with congestion and edema of intestinal mucosa, the rotary defecation easily causes mucosa injury and ulceration, brings pain to the children and may cause false positive of fecal occult blood to influence diagnosis and treatment of doctors; when the intestinal cavity pressure of the infant is low, the excrement is not easy to enter the side hole, so that the quantity of the collected samples is small; when the pressure of the intestinal cavity of the infant is overlarge, the excrement can be splashed out from the rear end opening of the anal swab; when the quantity of excrement in the intestinal cavity is insufficient, the quantity of the collected specimens of the anal swab is insufficient, and the specimens are collected for multiple times after the infant has a dietary rest, so that anxiety of parents of the infant and the risk of injury to the intestinal mucosa of the infant can be increased due to the multiple collection and long-time waiting; the specimen is placed in the test tube for open storage after being taken out and defecated smoothly, which is easy to cause specimen pollution or change of physicochemical properties. 201821372255.0 Chinese patent "A multihole antiseep stool collector" discloses an improved stool collector, which is not easy to damage the intestinal mucosa in use, has scale indication of insertion depth, and can prevent the leakage splash and good sealing, but the collector needs to rely on the inner pressure of the intestinal canal to force the stool to enter the inner cavity of the anal swab from the side hole in use, if the hard stool or the water sample stool is difficult to collect once by the inner pressure of the intestinal canal, and needs to collect for many times, the intestinal mucosa of the patient is easy to be damaged; meanwhile, a complex double-layer piston structure is also needed in the inner cavity of the anus swab and matched with a gas-liquid filter screen to seal the collected sample so as to prevent leakage from the side hole; after the collection is finished, an outer sleeve is required to be added outside the anus swab to seal the anus swab, so that the collected sample is prevented from leaking out of the side hole.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems and provide the technical task that aiming at the problems that the collector disclosed by the prior patent depends on the internal pressure collection of the intestinal canal, the intestinal mucosa is easy to be damaged due to the multiple collection, the sealing structure after the collection of the anus swab is complicated and the like, the utility model provides an excrement collector which improves the success rate of one-time collection by negative pressure suction, thereby reducing the collection times to protect the intestinal mucosa of the sick children; meanwhile, the collected specimen is safely isolated by using a simpler sealing structure, so that the sample collected in the anus swab is prevented from overflowing, and the infection incidence of a hospital is reduced. Furthermore, the utility model is also provided with an adjustable limiting device to limit the insertion depth of the anus swab at each time so as to well match the intestinal conditions of patients of different ages; the basket type storage pocket for storing the sample in the anus swab is convenient to be connected with automatic inspection equipment to quickly feed the sample into the storage pocket, and conditions are created for subsequent inspection automation.

The utility model provides a technical scheme that technical problem adopted: a fecal collector comprises a tubular anal swab with a closed front end and an open rear end, a side hole is arranged on the tube wall of the front end of the anal swab and communicated with a tube cavity, it is characterized in that a piston which can move back and forth is arranged in the lumen of the anus swab, the piston can move towards the back end along the length direction of the lumen to form negative pressure in the lumen of the front section, a sleeve pipe which extends towards the back end is fixed on the piston, one end of the sleeve pipe is fixedly connected with an upper cover outside the back end of the anus swab, a lower cover is arranged between the upper cover and the rear end of the anus swab, a connecting rod is arranged on the lower cover and forwards penetrates through the sleeve and the piston to extend into the front section tube cavity of the anus swab, the connecting rod passes through the piston in a sealing way, a storage pocket matched with the shape of the closed end of the anal swab tube cavity is arranged at the extending end of the connecting rod, the storage pocket is provided with an inwards concave bowl cavity capable of containing materials, a flange corresponding to the side hole is arranged on the edge of the bowl cavity of the storage pocket, and the flange can rotate along with the lower cover to shield the side hole on the wall of the anus swab. The excrement collector of the utility model can actively suck and collect excrement samples through negative pressure suction, thereby improving the one-time successful collection rate of patients and children, further reducing the collection times and protecting intestinal mucosa of children patients; need not additionally to increase an outer tube after the collection is accomplished, carry out safety isolation to the sample through the more simple structure of anus swab intracavity, prevent that the sample from spilling over from the side opening of anus swab pipe wall, reduce the hospital infection morbidity. When the disposable collecting device is used, the upper cover is pulled to move the piston in the tube cavity of the anal swab to the rear end, so that negative pressure is formed in the front-section tube cavity of the anal swab and the anal swab is matched to rotate, a sample to be collected can be sucked in from the side hole in a negative pressure manner without depending on the internal pressure of an intestinal tube, the disposable collecting device is very convenient for a patient with hard excrement or water sample excrement, the success rate of one-time collection can be greatly improved, and the risk of injury to the intestinal mucosa of the patient due to repeated collection is effectively reduced; after the collection is accomplished, rotate the flange that the lower cover made storage pocket bowl chamber border and remove the side opening position, the flange covers the sample of side opening pipe intracavity from anus swab's lumen inboard and carries out safety isolation, prevents that the sample from the side opening excessive, and the indent bowl chamber of storage pocket is used for the storage to follow the inspiratory collection sample of side opening.

As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: 2 ~ 4 side openings are seted up around the circumference on the pipe wall of anus swab front end, the storage pocket is equipped with the equivalent flange that corresponds with the side opening position at the bowl chamber border. A plurality of side holes are opened around the circumference on the pipe wall of front end to the anus swab, and through rotating the anus swab, can inhale excrement and urine simultaneously from a plurality of side holes in the acquisition process for sample collection quantity improves once and gathers the success rate.

A limiting ring capable of moving back and forth is sleeved outside the pipe wall at the rear part of the anus swab, and an adjustable limiting structure is arranged between the outer surface of the pipe wall of the anus swab and the limiting ring. The working insertion depth of the anus swab is limited by the position of the limiting ring, so that the device is more convenient and practical compared with the prior device which can only observe the insertion depth by looking at scales, and the insertion depth of the anus swab can only reach the limiting ring every time; and the spacing collar can move back and forth, can adjust according to different patient health condition is nimble, adjusts and changes anus swab depth of insertion, and application scope is wider.

The limiting structure is of a threaded structure, and the threaded structure comprises internal threads on the inner edge of the limiting ring and external threads on the outer surface of the wall of the anal swab tube. The thread structure is simple, the processing is convenient, the moving requirement of the limit ring on the anus swab can be met, and the limit ring can move back and forth on the anus swab only by rotating the limit ring positively/reversely during use.

The outer peripheral edge of the limiting ring is provided with a folded edge extending towards one side of the rear end of the anus swab, and the folded edge is continuously or discontinuously arranged along one circle of the outer peripheral edge of the limiting ring. The hem can be followed the outer peripheral edge round of spacing collar and is continuous or be interrupted the setting to form the round surrounding edge, the hand can be held the anus swab and support the surrounding edge simultaneously when using the collector, and the operation of inserting is more handy and be convenient for slowly insert, and the relative anus swab of hand slides when preventing to insert and causes to grip the shakiness and insert too fast, arouses the patient to be uncomfortable.

The elastic piece is arranged at one end of the cavity at the front end of the anus swab and is abutted against the material storage pocket, so that the material storage pocket, the connecting rod and the lower cover move towards the rear end of the anus swab together; the anus swab is equipped with the turn-ups of radial evagination at the pipe wall border of rear end, the turn-ups encircles the pipe wall round and is continuous and establish at least one breach, the lower cover is equipped with towards the location lockstitch that turn-ups one side extended and buckled along the periphery, the location lockstitch can support the turn-ups and make the lower cover spacing in anus swab rear end. The elastic element in the cavity of the front end of the anus swab can abut against the storage pocket to push the storage pocket to tend to one side of the rear end of the anus swab, and the positioning locking edge abuts against the outward protruding flanging at the rear end of the opening of the anus swab under the action of the elastic element; when the sampling is required to be taken out, the lower cover is rotated to enable the positioning locking edge to move to the notch on the flanging, then the lower cover is pressed to one side of the elastic part, the elastic part is rebounded to push the storage pocket after being pressed, the lower cover is jacked to bounce away from the open rear end of the anus swab, the storage pocket is conveniently taken out along with the upward movement of the lower cover, the collected sample can be sent to be tested, the ingenious structure for jacking the lower cover after being rotated also enables subsequent design matching automatic equipment to be possible, as long as the automatic equipment can complete the manual operation process for the collector, and the foundation is laid for the automatic testing.

The lower cover is provided with two positioning locking edges, the connecting line of the two positioning locking edges penetrates through the center of the lower cover, the flanging is provided with two notches matched with the positioning flanging, 2 side holes are uniformly distributed on the pipe wall of the front end of the anus swab around the circumference, the edge of the bowl cavity of the storage bag is provided with flanges corresponding to the positions of the two side holes, and the connecting line of the two positioning locking edges is vertical to the connecting line of the two flanges; the elastic part is a vertically arranged spring, the lower end of the spring is fixed on a spring base arranged on the inner wall of the front end tube cavity of the anus swab, and the upper end of the spring can abut against a storage pocket. Cover preferred two location lockrand down, set up two positions flange on 2 side openings and the storage pocket on the cooperation anus swab pipe wall, the relative side opening dislocation of this preceding two positions flange of sample is in order to avoid the side opening, two positions flange covers two positions side opening along with the lower cover rotation after the sample, and two positions location lockrand supports anus swab opening end evagination turn-ups under spring pushing action, rotate the lower cover when will taking out the sample and make two positions location lockrand move to corresponding two breach positions, press elastic component pressurized resilience promotion storage pocket such as lower cover, the uncovered rear end of jacking lower cover bullet from the anus swab.

The surface of the side hole is a smooth concave surface, the depth of the side hole is contracted along the pipe wall of the anus swab from outside to inside, the width of the side hole extends around the pipe wall of the anus swab, and the hole diameters of two ends of the width are one larger and one smaller. The side opening is the smooth concave surface in surface, and the side opening degree of depth changes along anus swab pipe wall outside-in undergauge, and the side opening width encircles the extension of anus swab pipe wall and both ends aperture has the branch of size simultaneously, and such shape purpose is for making things convenient for the sample to get into anus swab lumen, and the at utmost keeps the side opening surface to be infected with the sample less after the sampling is accomplished simultaneously, and the rotation direction of anus swab rotates to the macropore end for the micropore end of side opening width direction during the sampling.

The utility model actively sucks and collects the excrement sample through negative pressure suction, thereby improving the one-time successful collection rate of the sick infants, further reducing the collection times and protecting the intestinal mucosa of the sick infants; after the collection is finished, an extra outer sleeve is not needed, the sample is directly and safely isolated through a simpler structure in the cavity of the anus swab tube, the sample is prevented from overflowing from a side hole of the wall of the anus swab tube, and the incidence rate of nosocomial infection is reduced; meanwhile, the ingenious self-opening structure is convenient for taking out collected samples from the anus swab, and a foundation is laid for the subsequent design of automatic inspection equipment.

Drawings

FIG. 1: the utility model discloses packaging structure schematic diagram.

FIG. 2: fig. 1 is a side view.

FIG. 3: the lower cover, the connecting rod and the storage pocket are integrated.

FIG. 4: fig. 3 is a side view.

FIG. 5: the utility model discloses negative pressure sampling schematic diagram.

FIG. 6: the utility model discloses take out the hand-basket schematic diagram after the sampling.

In the figure: 1. the anal swab, 2. side hole, 3. piston, 4. sleeve, 5. upper cover, 6. lower cover, 7. connecting rod, 8. storage pocket, 9. flange, 10. spacing ring, 11. spring base, 12. external screw thread, 13. hem, 14. turn-ups, 15. breach, 16. positioning lock edge, 17. elastic component.

Detailed Description

The present invention will be further described with reference to the following embodiments.

As shown in figures 1-6, a feces collector comprises a tubular anal swab 1 with a closed front end and an open rear end, wherein the wall of the front end of the anal swab 1 is provided with two side holes 2 which are spaced by 180 degrees and communicated with a tube cavity, the surface of each side hole 2 is an elliptical smooth concave surface, the hole diameter of each side hole is reduced from outside to inside along the wall of the anal swab 1, a piston 3 which can move back and forth is arranged in the tube cavity of the anal swab 1, the piston 3 can move towards the rear end along the length direction of the tube cavity to form negative pressure inside the front-section tube cavity, a sleeve 4 which extends towards the rear end is fixed on the piston 3, one end of the sleeve 4 is fixedly connected with an upper cover 5 outside the rear end of the anal swab 1, a lower cover 6 is arranged between the upper cover 5 and the rear end of the anal swab 1, a connecting rod 7 arranged on the lower cover 6 penetrates the sleeve 4 and the piston 3 forwards and extends into the front-section tube cavity of the anal swab 1, the extending end of the connecting rod 7 is provided with a storage pocket 8 matched with the shape of the closed end of the tube cavity of the anus swab 1, the storage pocket 8 is provided with an inward concave bowl cavity capable of containing materials, two retaining sides 9 corresponding to the positions of the side holes 2 are arranged at the edge of the bowl cavity of the storage pocket 8, and the two retaining sides 9 can rotate along with the lower cover 6 to shield the two side holes 2 on the tube wall of the anus swab 1; the elastic piece 17 is arranged at one end of the cavity at the front end of the anus swab 1 and is abutted against the storage pocket 8, so that the storage pocket 8, the connecting rod 7 and the lower cover 6 move towards the rear end of the anus swab 1 together, in the embodiment, the elastic piece 17 is preferably a vertically arranged spring, the lower end of the spring is fixed on a spring base 11 arranged on the inner wall of the cavity at the front end of the anus swab 1, and the upper end of the spring can be abutted against the storage pocket 8; the edge of the pipe wall of the rear end of the anus swab 1 is provided with a radially outward convex flanging 14, the flanging 14 surrounds the pipe wall for a circle and is continuously provided with two notches 15 at intervals of 180 degrees, the edge of the outer edge of the lower cover 6 is provided with two positioning locking edges 16 which extend and bend towards one side of the flanging 14, the connecting line of the two positioning locking edges 16 penetrates through the center of the lower cover 6, the positioning locking edges 16 can abut against the flanging 14 to limit the lower cover 6 at the rear end of the anus swab 1, and the connecting line of the two positioning locking edges 16 is vertical to the connecting line of the two retaining edges 9; the pipe wall at the rear part of the anus swab 1 is sleeved with a limiting ring 10 capable of moving back and forth, the outer peripheral edge of the limiting ring 10 is provided with a folded edge 13 extending towards one side of the rear end of the anus swab 1, the folded edge 13 is continuously or discontinuously arranged along the outer peripheral edge of the limiting ring 10 in a circle, a thread structure for adjusting limiting is arranged between the outer surface of the pipe wall of the anus swab 1 and the limiting ring 10, and the thread structure comprises internal threads on the inner edge of the limiting ring 10 and external threads 12 on the outer surface of the pipe wall of the anus swab 1.

When the device is used, the limiting ring is rotated according to the age of a patient to move to a proper position on the anus swab, the insertion depth of the anus swab is limited, the anus swab of the collector is inserted into the patient, the upper cover is rotated to pull the upper cover to drive the piston to move in the tube cavity of the anus swab to the rear end, negative pressure is formed in the front-section tube cavity of the anus swab, the anus swab is rotated in a matching manner, and a feces sample to be collected can be sucked in from the side hole through the negative pressure without depending on the internal pressure of an intestinal tube; after the collection is accomplished, rotate the flange that the lower cover made storage pocket bowl chamber border and remove the side opening position, the flange covers the sample of side opening to the pipe intracavity from the lumen inboard of anus swab and carries out safety isolation, it is excessive to prevent that the sample from the side opening, the indent bowl chamber of storage pocket is used for saving the collection sample of inhaling from the side opening, the elastic component of anus swab front end lumen simultaneously can conflict the storage pocket and promote its trend anus swab rear end one side, the turn-ups that supports the uncovered rear end evagination of anus swab is kept a lock limit in the elastic component effect down, the lower cover is spacing in the rear end of anus swab. The negative pressure suction collection mode is very convenient for the sick children who suffer from hard excrement or water sample excrement, can greatly improve the success rate of one-time collection, and effectively reduces the risk of injury to the intestinal mucosa of the sick children due to multiple times of collection; after the collection is accomplished, rotate the flange that the lower cover made storage pocket bowl chamber border and remove the side opening position, the flange covers the sample of side opening pipe intracavity from anus swab's lumen inboard and carries out safety isolation, prevents that the sample from the side opening excessive, and the indent bowl chamber of storage pocket is used for the storage to follow the inspiratory collection sample of side opening. When the sample needs to be taken out, the lower cover is rotated to enable the positioning locking edge to move to the notch on the flanging, then the lower cover is pressed to one side of the elastic part, the elastic part rebounds after being pressed to push the storage pocket, the lower cover is jacked to bounce away from the open rear end of the anus swab, the storage pocket is conveniently taken out along with the upward movement of the lower cover, and the collected sample can be sent to be tested. This kind of rotate back push down the ingenious structure that plays the lower cover and still make follow-up design supporting automatic equipment possible, as long as automatic equipment can accomplish aforementioned manual operation process to the collector can, lay the basis for the inspection automation.

Claims

1. The utility model provides a fecal collector, includes one and is tubulose and the open anus swab (1) of front end closed rear end, but anus swab (1) is opened side opening (2) intercommunication lumen on the pipe wall of front end, characterized by but be equipped with piston (3) of back-and-forth movement in the lumen of anus swab (1), piston (3) can be followed lumen length direction and moved towards the rear end and make the inside negative pressure that forms of anterior segment lumen, are fixed with sleeve pipe (4) that extend to the rear end on piston (3), and sleeve pipe (4) one end and the outer upper cover (5) rigid coupling of anus swab (1) rear end, establish lower cover (6) between upper cover (5) and anus swab (1) rear end, be equipped with connecting rod (7) on lower cover (6) and pass sleeve pipe (4) forward and piston (3) and stretch into the anterior segment lumen of anus swab (1), and connecting rod (7) seal and pass piston (3), and connecting rod (7) stretch into end and be equipped with storage pocket blind end (8) that match with anus swab (1) lumen shape, be equipped with the indent bowl chamber that can contain the material on storage pocket (8), storage pocket (8) are equipped with flange (9) that correspond with side opening (2) at bowl chamber border, flange (9) can be rotated along with lower cover (6) and cover side opening (2) on anus swab (1) pipe wall.

2. The excrement collector according to claim 1, wherein 2-4 side holes (2) are formed in the pipe wall of the front end of the anus swab (1) around the circumference, and an equivalent retaining edge (9) corresponding to the position of each side hole (2) is arranged on the edge of the bowl cavity of the storage pocket (8).

3. The excrement collector according to claim 1, wherein a spacing ring (10) capable of moving back and forth is sleeved outside the tube wall at the rear part of the anus swab (1), and an adjustable spacing structure is arranged between the outer surface of the tube wall of the anus swab (1) and the spacing ring (10).

4. The fecal collector according to claim 3 characterized in that the stop structure is a screw thread structure comprising an internal thread on the inner edge of the stop collar (10) and an external thread (12) on the outer surface of the tube wall of the anal swab (1).

5. The fecal collector according to the claim 3, characterized in that the outer circumference of the spacing ring (10) is provided with a folding edge (13) extending towards the rear end side of the anal swab (1), and the folding edge (13) is continuously or discontinuously arranged along the circumference of the spacing ring (10).

6. The excrement collector according to claim 1, wherein an elastic part (17) is arranged at one end of the cavity at the front end of the anus swab (1) and abuts against the storage pocket (8), so that the storage pocket (8), the connecting rod (7) and the lower cover (6) move towards the rear end of the anus swab (1); the anus swab (1) is equipped with turn-ups (14) of radial evagination at the pipe wall border of rear end, turn-ups (14) encircle the pipe wall round and continue and establish at least one breach (15), lower cover (6) are equipped with towards turn-ups (14) one side extension location lockstitching (16) of buckling along the outer fringe border, location lockstitching (16) can support turn-ups (14) and make lower cover (6) spacing in anus swab (1) rear end.

7. The excrement collector according to claim 6, characterized in that two positioning locking edges (16) are arranged on the lower cover (6), the connecting lines of the two positioning locking edges (16) penetrate through the center of the lower cover (6), two notches (15) matched with the positioning locking edges (14) are arranged on the turning edges (14), 2 side holes (2) are uniformly distributed on the pipe wall of the front end of the anus swab (1) around the circumference, retaining edges (9) corresponding to the positions of the two side holes (2) are arranged on the edge of the bowl cavity of the storage pocket (8), and the connecting lines of the two positioning locking edges (16) are perpendicular to the connecting lines of the two retaining edges (9); the elastic piece (17) is a vertically arranged spring, the lower end of the spring is fixed on a spring base (11) arranged on the inner wall of the front end tube cavity of the anus swab (1), and the upper end of the spring can abut against a storage pocket (8).

8. The fecal collector according to claim 1 characterized in that the surface of the side hole (2) is smooth concave and the hole diameter of the side hole is reduced from outside to inside along the tube wall of the anal swab (1).