Excrement liquid collecting device for rectal fistula patient

Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to a liquid dung collecting device for a rectal fistula patient, which comprises a chassis mechanism fixed on the skin of the patient, a plugging mechanism arranged on the chassis mechanism, and a liquid dung collecting mechanism clamped with the plugging mechanism, the blocking mechanism comprises a sleeve shell arranged on one side of the chassis mechanism and further comprises a discharge port formed in the end, away from the chassis mechanism, of the sleeve shell and a blocking assembly arranged in the sleeve shell, and the discharge port and the blocking assembly are sealed in an extrusion mode. The blocking assembly is driven to be unblocked when the excrement liquid collecting mechanism is connected with the blocking mechanism, so that the excretion opening of the blocking mechanism is opened, and the problem that when a rectal fistula patient uses an ostomy bag to collect excrement after an operation, the excrement liquid may flow out through the fistula opening and pollutes the surrounding environment and patient clothes in the ostomy bag replacement process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and more particularly to a fecal liquid collecting device for patients with rectal fistula. Background Art

[0002] Rectovaginal fistula is a common gynecological disease in clinical practice, which causes the patient's feces to flow uncontrollably from the rectum into the vagina through the fistula. This situation not only causes great physical discomfort and psychological pressure to the patient, but long-term fecal immersion may also cause redness and itching of the coccyx and perineum skin, and even ulceration and infection, seriously affecting the patient's quality of life.

[0003] For the treatment of rectovaginal fistula, doctors may choose different surgical options depending on the size and location of the fistula. For patients with smaller fistulas, surgery can be performed directly to close the fistula; for patients with larger fistulas, part of the rectum may need to be removed and reconnected, a procedure usually called a rectal diversion or ostomy. After a rectal diversion, the patient's stool will no longer be discharged through the original rectum, but will be discharged from the body through an artificial fistula. At this time, an ostomy bag will be needed to collect the stool.

[0004] However, there are some problems in the use of ostomy bags, especially when changing ostomy bags. Since the fistula of the patient is continuously open, if the patient happens to discharge feces during the process of changing the ostomy bag, the feces may flow out through the fistula and contaminate the surrounding environment and the patient's clothes, which not only increases the cleaning burden of the patient, but also may cause risks such as infection.

[0005] In order to solve the above problems, a fecal liquid collection device for patients with rectal fistula is proposed. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] In view of the problems existing in the prior art, the present invention provides a fecal liquid collection device for patients with rectal fistula, so as to solve the problem mentioned in the background technology that when patients with rectal fistula use ostomy bags to collect feces after surgery, the fecal liquid may flow out through the fistula opening during the process of changing the ostomy bag and contaminate the surrounding environment and the patient's clothes.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a fecal liquid collection device for patients with rectal fistula, comprising a chassis mechanism fixed on the patient's skin, a blocking mechanism arranged on the chassis mechanism, and a fecal liquid collection mechanism engaged with the blocking mechanism;

[0010] The blocking mechanism includes a casing disposed on one side of the chassis mechanism, a discharge port opened at an end of the casing away from the chassis mechanism, and a blocking component disposed inside the casing;

[0011] The excretion port and the blocking component are squeezed and sealed, and the blocking component is driven to unseal when the feces collection mechanism and the blocking mechanism are connected, so that the excretion port of the blocking mechanism is opened to allow the excrement of the patient's fistula to enter the feces collection mechanism through the excretion port.

[0012] The present invention is further configured such that a retaining ring is provided on the inner circumferential wall of the casing, and the blocking assembly is provided on one side of the retaining ring;

[0013] The blocking assembly includes an extrusion spring arranged inside the housing and abutting against one side of the retaining ring, an abutting ring arranged at an end of the extrusion spring away from the retaining ring, a first support rod arranged on the abutting ring, and a blocking block fixedly connected by the first support rod.

[0014] The present invention is further configured such that the extrusion spring and the inner cavity of the casing are matched in diameter, and the abutment ring is slidably mounted in the inner cavity of the casing, the first support rod is symmetrically arranged with respect to the inner wall of the abutment ring, and the blocking block and the discharge port are sealed and matched.

[0015] The present invention is further configured such that the casing and the chassis mechanism are detachably connected, and a sealing gasket is arranged inside the casing, the sealing gasket is arranged on the side of the retaining ring away from the extrusion spring, and the casing and the chassis mechanism are sealed by pressing the sealing gasket when they are fixedly connected.

[0016] The present invention is further configured such that the chassis mechanism includes an adhesive patch for fixed connection with the patient's skin, a connecting sleeve column arranged on one side of the center position of the adhesive patch, and a dimension marking line arranged on a side of the adhesive patch away from the connecting sleeve column;

[0017] The dimension marking line and the connecting sleeve column are concentrically arranged, and an external thread is provided on the outer wall of the connecting sleeve column. The connecting sleeve column is connected to the sleeve shell thread through the external thread.

[0018] The present invention is further configured such that an inner thread is formed at one end of the inner wall of the casing away from the discharge port, and the inner thread matches the outer thread, and the sealing gasket is arranged in the casing in the inner thread area.

[0019] The present invention is further configured such that the drainage port is opened at a central position of one end of the casing, and a guide surface is opened at the drainage port position on the casing, and the guide surface is arranged on the inner wall of the casing.

[0020] The present invention is further configured such that the feces collection mechanism includes a mounting seat sleeved on the outside of the casing and fixedly engaged with the casing, and also includes a collection bag disposed at one end of the mounting seat for receiving the feces; and a driving assembly disposed at one end of the mounting seat close to the collection bag;

[0021] A slot is provided at one end of the inner wall of the mounting seat away from the collecting bag, and a convex ring is provided at one end of the circumferential outer wall of the casing away from the collecting bag, and the convex ring matches the slot.

[0022] The present invention is further configured such that a plurality of scrapers are arranged in an array at one end of the inner wall of the mounting seat close to the card slot, and the scrapers are arranged obliquely, the inner diameter of the scrapers is smaller than the outer wall of the casing, and the scrapers are made of slightly elastic plastic material;

[0023] A matching ring is arranged at one end of the inner wall of the mounting seat away from the clamping groove, and the matching ring matches with the outer wall of one end of the discharge port of the housing.

[0024] The present invention is further configured such that the driving assembly includes a second support rod disposed at one end of the mounting seat away from the slot, and a top rod disposed on the second support rod and located at the axis of the mounting seat.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the present invention provides a fecal liquid collection device for patients with rectal fistula, which has the following beneficial effects:

[0027] 1. In the present invention, by setting the blocking mechanism, when the feces collection mechanism is replaced, during the process of disassembling the feces collection mechanism, the extrusion spring pushes the blocking block to block the excretion port, thereby avoiding the surrounding ring pollution caused by the patient's discharge behavior when the collection bag is cleaned and replaced. At the same time, when the collection bag is cleaned and installed, the plug-in installation action drives the push rod to push the blocking block, so that the excretion port is opened, so that the patient's excrement can be collected normally.

[0028] 2. The present invention not only has a sealing effect by setting a plurality of scrapers, but also can clean the casing when disassembling the feces collection mechanism, thereby avoiding contamination of the outer wall of the casing. When disassembling the feces collection mechanism, the scraper on the inner wall of the mounting seat first contacts the outer wall of the casing. Since the scraper is made of slightly elastic plastic material and is inclined, it can fit tightly to the surface of the casing and scrape off attached residues. As the mounting seat is pulled out, the scraper continues to clean the casing to ensure the cleanliness of the outer wall of the casing. This design not only improves the sealing performance of the device, but also simplifies the user's cleaning work and enhances the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a schematic diagram of the overall structure of a fecal liquid collection device for patients with rectal fistula.

[0030] Figure 2 The present invention is a schematic diagram of the chassis structure of a fecal liquid collection device for patients with rectal fistula.

[0031] Figure 3 It is a schematic diagram of the structure to be installed of a chassis mechanism and a sealing mechanism in a fecal liquid collection device for patients with rectal fistula, and the sealing mechanism is a partial cross-section.

[0032] Figure 4 It is a schematic diagram of the cross-sectional structure of the blocking mechanism in the fecal liquid collection device for patients with rectal fistula.

[0033] Figure 5 A schematic diagram of the explosion structure of a sealing mechanism of a fecal liquid collection device for patients with rectal fistula.

[0034] Figure 6 It is a schematic diagram of the structure of the blocking mechanism and the feces collection mechanism to be installed in the feces collection device for patients with rectal fistula.

[0035] Figure 7 The present invention is a schematic diagram of the structure of the fecal liquid collection mechanism of the fecal liquid collection device for patients with rectal fistula.

[0036] In the figure: 1. chassis mechanism; 101. adhesive label; 102. connecting sleeve; 103. dimension mark; 104. external thread; 2. sealing mechanism; 201. sleeve; 202. discharge port; 203. retaining ring; 204. sealing gasket; 205. internal thread; 206. guide surface; 207. convex ring; 3. feces collection mechanism; 301. mounting seat; 302. collecting bag; 303. slot; 304. scraper; 305. matching ring; 4. sealing assembly; 401. extrusion spring; 402. resistance ring; 403. first support rod; 404. sealing block; 5. driving assembly; 501. second support rod; 502. top rod. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0039] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0040] For examples, see Figure 1 - Figure 7 , a fecal liquid collection device for patients with rectal fistula, comprising a chassis mechanism 1 fixed on the patient's skin, a blocking mechanism 2 arranged on the chassis mechanism 1, and a fecal liquid collection mechanism 3 engaged with the blocking mechanism 2;

[0041] The blocking mechanism 2 includes a casing 201 disposed on one side of the chassis mechanism 1, a drain port 202 opened at one end of the casing 201 away from the chassis mechanism 1, and a blocking component 4 disposed inside the casing 201;

[0042] The excretion port 202 and the blocking component 4 are squeezed and sealed, and the blocking component 4 is driven to unseal when the feces collection mechanism 3 and the blocking mechanism 2 are connected, so that the excretion port 202 of the blocking mechanism 2 is opened to allow the excrement from the patient's fistula to enter the feces collection mechanism 3 through the excretion port 202.

[0043] The chassis mechanism 1 and the blocking mechanism 2 are detachably connected, and before the chassis mechanism 1 is fixed to the patient's skin, the blocking mechanism 2 and the chassis mechanism 1 are first connected, and then a avoidance hole is trimmed out of the center position of the chassis mechanism 1 with scissors according to the size of the fistula, and then the chassis mechanism 1 is fixed to the patient's skin, and finally the fecal liquid collecting mechanism 3 is connected to the blocking mechanism 2. Through the connection action between the fecal liquid collecting mechanism 3 and the blocking mechanism 2, the blocking component 4 is pushed, so that the excretion port 202 is opened, and the fecal liquid collecting mechanism 3 collects the fecal liquid at the patient's fistula.

[0044] Furthermore, when the amount of fecal liquid carried by the patient's fecal liquid collection mechanism 3 reaches a level that needs to be cleaned and discharged, the fecal liquid collection mechanism 3 is removed from the blocking mechanism 2. During the removal process, the blocking mechanism 2 is changed from the previous open state to the closed blocking state, thereby avoiding the situation where the patient's fistula excretes and causes fecal liquid to leak out when the patient's fecal liquid collection mechanism 3 is disassembled and cleaned.

[0045] A retaining ring 203 is disposed on the inner circumferential wall of the casing 201, and the blocking component 4 is disposed on one side of the retaining ring 203;

[0046] The blocking assembly 4 includes an extrusion spring 401 arranged inside the shell 201 and abutting against one side of the retaining ring 203, an abutting ring 402 arranged at the end of the extrusion spring 401 away from the retaining ring 203, a first support rod 403 arranged on the abutting ring 402, and a blocking block 404 fixedly connected by the first support rod 403.

[0047] The retaining ring 203 is arranged on the inner wall of the casing 201 close to one end of the chassis mechanism 1, but there is a partial gap from the end. The remaining gap is to provide a connection between the chassis mechanism 1 and the casing 201. In the initial state of the extrusion spring 401, one end thereof abuts against the retaining ring 203, and the other end pushes the abutting ring 402, so that the abutting ring 402 drives the blocking block 404 to press the discharge port 202 of the casing 201 away from the end of the chassis mechanism 1 through the first support rod 403, thereby achieving the blocking of the discharge port 202, that is, when the fecal liquid collecting mechanism 3 is not installed, the blocking mechanism 2 is in a closed state. Then, when the patient's fistula has excretion at this time, the fecal liquid cannot temporarily leak out of the body due to the closure of the discharge port 202.

[0048] The extrusion spring 401 matches the inner diameter of the sleeve 201 , and the abutment ring 402 is slidably mounted in the inner cavity of the sleeve 201 . The first support rod 403 is symmetrically arranged about the inner wall of the abutment ring 402 , and the blocking block 404 is sealed and matched with the discharge port 202 .

[0049] By squeezing the spring 401 and limiting the contact ring 402, the blocking block 404 can maintain linear motion when being pushed, and the blocking block 404 is fixed to the axial position of the casing 201 by two symmetrically arranged first support rods 403, so that the blocking block 404 can correspond to the discharge port 202, and at the same time, the blocking block 404 is fixed by the first support rod 403, so that there is a certain gap between the outer wall of the blocking block 404 and the inner wall of the contact ring 402, and the gap is the flow gap of the fecal liquid when the blocking block 404 is separated from the discharge port 202.

[0050] The casing 201 and the chassis mechanism 1 are detachably connected, and a sealing gasket 204 is arranged inside the casing 201. The sealing gasket 204 is arranged on the side of the retaining ring 203 away from the extrusion spring 401, and the casing 201 and the chassis mechanism 1 are sealed by pressing the sealing gasket 204 when they are fixedly connected.

[0051] The extrusion seal of the sealing pad 204 prevents the fecal liquid from leaking.

[0052] The chassis mechanism 1 includes an adhesive patch 101 for fixedly connecting to the patient's skin, a connecting sleeve 102 arranged on one side of the center of the adhesive patch 101, and a dimension marking line 103 arranged on the side of the adhesive patch 101 away from the connecting sleeve 102;

[0053] The dimension marking line 103 and the connecting sleeve column 102 are concentrically arranged, and an external thread 104 is provided on the outer wall of the connecting sleeve column 102 , and the connecting sleeve column 102 is threadedly connected to the sleeve shell 201 via the external thread 104 .

[0054] A protrusion is provided on the circumferential edge of the adhesive tape 101, and two release papers are provided on the side of the adhesive tape 101 away from the connecting sleeve 102, one of the release papers is arranged in a circular shape to match the circumferential edge of the adhesive tape 101, and the other release paper matches the protrusion provided on the circumferential edge of the adhesive tape 101, which is used for patients to tear it off later, so as to facilitate the disassembly and replacement of the chassis mechanism 1.

[0055] The dimension marking line 103 is based on the axis of the connecting sleeve 102 and is marked with circular dotted lines of different diameters at equal intervals. The patient can use scissors to cut the size according to the size of the fistula, so as to fit the sleeve to avoid the fistula.

[0056] An inner wall of the casing 201 at one end away from the discharge port 202 is provided with an internal thread 205 , and the internal thread 205 matches the external thread 104 , and the sealing gasket 204 is disposed in the casing 201 in the area of ​​the internal thread 205 .

[0057] When the external thread on the connecting sleeve 102 is connected to the internal thread 205 on the sleeve shell 201, the connecting sleeve 102 squeezes the sealing gasket 204 along with the threaded connection, thereby achieving the sealing effect of the sealing gasket 204. Among them, after the connecting sleeve 102 and the sleeve shell 201 are threadedly connected, there is a certain distance between the end of the sleeve shell 201 and the adhesive tape 101, and the distance is the reserved gap for the clamping when the feces collection mechanism 3 and the blocking mechanism 2 are connected. Otherwise, if the clamping position deviates, it will be difficult to achieve clamping between the feces collection mechanism 3 and the blocking mechanism 2.

[0058] The drain port 202 is opened at the center of one end of the casing 201 , and a guide surface 206 is opened at the drain port 202 on the casing 201 , and the guide surface 206 is disposed on the inner wall of the casing 201 .

[0059] By setting the guide surface 206, after the blocking block 404 opens the discharge port 202, the fecal liquid flows through the gap between the outer wall of the blocking block 404 and the inner wall of the casing 201, so that the fecal liquid can quickly flow to the discharge port 202 after passing through the blocking block 404, and can more easily flow into the fecal liquid collection mechanism 3.

[0060] The feces collection mechanism 3 includes a mounting seat 301 which is sleeved on the outside of the casing 201 and fixedly connected to the casing 201, and also includes a collection bag 302 arranged at one end of the mounting seat 301 for receiving feces; and a driving assembly 5 arranged at one end of the mounting seat 301 close to the collection bag 302;

[0061] A slot 303 is formed on one end of the inner wall of the mounting seat 301 away from the collecting bag 302 , and a convex ring 207 is formed on one end of the circumferential outer wall of the casing 201 away from the collecting bag 302 , and the convex ring 207 matches the slot 303 .

[0062] The mounting seat 301 and the casing 201 are movably connected. After the connection, the convex ring 207 and the slot 303 are used to complete the connection, so that the collecting bag 302 is fixed to the casing 201. When the mounting seat 301 is connected to the casing 201, the mounting seat 301 drives the driving assembly 5 to move. Before the convex ring 207 and the slot 303 are connected, the driving assembly 5 pushes the blocking block 404 as the mounting seat 301 moves, so that the blocking block 404 is away from the discharge port 202, so that the discharge port 202 is in an open state.

[0063] A plurality of scrapers 304 are arranged in an array at one end of the inner wall of the mounting seat 301 near the slot 303, and the scrapers 304 are arranged in an inclined manner. The inner diameter of the scrapers 304 is smaller than the outer wall of the casing 201, and the scrapers 304 are made of slightly elastic plastic material;

[0064] A matching ring 305 is provided at one end of the inner wall of the mounting seat 301 away from the slot 303 , and the matching ring 305 matches with the outer wall of one end of the discharge port 202 of the housing 201 .

[0065] The scraper 304 is an inclined annular plastic sheet, and its initial inner diameter is smaller than the outer wall of the casing 201, so that when the mounting seat 301 is plugged into the outer wall of the casing 201, the scraper 304 is squeezed and deformed with the outer wall of the casing 201 under the action of the driving force, so that the scraper 304 is close to the outer wall of the casing 201. When it is necessary to disassemble and clean the collection bag 302 in the later stage, the mounting seat 301 is moved and pulled out from the casing 201, which will drive the scraper 304 to clean the feces liquid on the outer wall of the casing 201, so as to avoid a pile of feces liquid remaining on the outer surface of the casing 201 of the blocking mechanism 2 exposed to the outside after the feces liquid collecting mechanism 3 is disassembled. Furthermore, by providing multiple scrapers 304, the feces liquid on the outer surface of the casing 201 can be cleaned more thoroughly when the mounting seat 301 is disassembled.

[0066] Through the setting of the scraper 304, it can be known that the inner wall diameter of the mounting seat 301 is larger than the outer wall diameter of the casing 201. By setting a matching ring 305 at one end of the mounting seat 301 away from the scraper 304, when the mounting seat 301 is sleeved on the outside of the casing 201, both ends can maintain stable support.

[0067] The driving assembly 5 includes a second support rod 501 disposed at one end of the mounting seat 301 away from the slot 303 , and a top rod 502 disposed on the second support rod 501 and located at the axis of the mounting seat 301 .

[0068] Three second support rods 501 are arranged in a circular array about the inner wall of the mounting seat 301 , and one end of the three second support rods 501 away from the inner wall of the mounting seat 301 is fixedly connected to one end of the circumferential side wall of the top rod 502 .

[0069] Specifically, when the feces collection mechanism 3 is installed on the blocking mechanism 2, the mounting seat 301 is sleeved on one end of the casing 201. When sleeved, the multiple scrapers 304 in the linear array on the mounting seat 301 are first deformed and expanded to fit tightly against the outer wall of the casing 201. At this time, the blocking block 404 still blocks the discharge port 202. When the multiple scrapers 304 are all sleeved and fitted to the outer wall of the casing 201, as the mounting seat 301 continues to be plugged in, the push rod 502 begins to resist and push the blocking block 404, so that the blocking block 404 moves away from the discharge port 202, thereby opening the discharge port 202, and the mounting seat 301 continues to move and plug in , until the card slot 303 and the convex ring 207 are deformed and engaged, at this time, the installation of the fecal liquid collecting mechanism 3 is completed, and the collecting bag 302 and the mounting seat 301 are in a connected state, so that the patient's fecal liquid can enter the collecting bag 302, wherein the collecting bag 302 is provided with an exhaust hole, and the exhaust hole is provided with a sealing plug. When the collecting bag 302 bulges, the gas can be discharged by removing the sealing plug on the exhaust hole. At the same time, the collecting bag 302 has a discharge port at the bottom, and a metal clip is provided at the end of the discharge port. The discharge port at the bottom of the collecting bag 302 is closed by rolling up the metal clip, and the rolled-up collecting bag 302 is fixed by folding the metal clip.

[0070] When the collection bag 302 needs to be replaced and cleaned, the mounting seat 301 is pulled out from the casing 201. When it is pulled out, the matching ring 305 is separated from one end of the casing 201. If the patient discharges fecal fluid at this time, the discharged fecal fluid will enter the gap between the casing 201 and the mounting seat 301, and will pollute the outer wall of the casing 201. The arrangement of multiple scrapers 304 plays a multi-layer sealing effect, thereby avoiding leakage of fecal fluid. At the same time, the scrapers 304 The design of the present invention ensures that the scraper 304 will continue to clean the outer wall of the sleeve 201 during the subsequent removal, so as to prevent the sleeve 201 from being dirty after the collection bag 302 is removed. When the mounting seat 301 is pulled out, the push rod 502 first breaks away from the push on the blocking block 404, so that the blocking block 404 is reset under the action of the extrusion spring 401, thereby sealing the excretion port 202. Therefore, after the fecal liquid collection mechanism 3 is removed, there is no need to worry about the patient's fecal liquid discharge causing pollution at this time.

[0071] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, welding is preferred for all fixed connections. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fecal collection device for patients with rectal fistula, characterized by: It comprises a chassis mechanism (1) fixed on the patient's skin, a blocking mechanism (2) arranged on the chassis mechanism (1), and a fecal liquid collection mechanism (3) engaged with the blocking mechanism (2); The blocking mechanism (2) comprises a casing (201) arranged on one side of the chassis mechanism (1), a discharge port (202) opened at an end of the casing (201) away from the chassis mechanism (1), and a blocking component (4) arranged inside the casing (201); The excretion port (202) and the blocking component (4) are squeezed and sealed, and the blocking component (4) is driven to be unsealed when the feces collection mechanism (3) and the blocking mechanism (2) are connected, so that the excretion port (202) of the blocking mechanism (2) is opened to allow the excrement from the fistula of the patient to enter the interior of the feces collection mechanism (3) through the excretion port (202).

2. A fecal liquid collection device for patients with rectal fistula according to claim 1, characterized in that: A retaining ring (203) is provided on the circumferential inner wall of the casing (201), and the blocking component (4) is arranged on one side of the retaining ring (203); The blocking assembly (4) comprises a compression spring (401) arranged inside the housing (201) and in contact with one side of the retaining ring (203), a contact ring (402) arranged at an end of the compression spring (401) away from the retaining ring (203), a first support rod (403) arranged on the contact ring (402), and a blocking block (404) fixedly connected via the first support rod (403).

3. A fecal liquid collection device for patients with rectal fistula according to claim 2, characterized in that: The extrusion spring (401) and the inner cavity of the casing (201) have matching diameters, and the abutment ring (402) is slidably mounted in the inner cavity of the casing (201), the first support rod (403) is symmetrically arranged with respect to the inner wall of the abutment ring (402), and the blocking block (404) and the discharge port (202) are sealingly matched.

4. A fecal liquid collection device for patients with rectal fistula according to claim 3, characterized in that: The casing (201) and the chassis mechanism (1) are detachably connected, and a sealing gasket (204) is arranged inside the casing (201). The sealing gasket (204) is arranged on a side of the retaining ring (203) away from the extrusion spring (401), and when the casing (201) and the chassis mechanism (1) are fixedly connected, a sealing process is performed by pressing the sealing gasket (204).

5. A fecal liquid collection device for patients with rectal fistula according to claim 4, characterized in that: The chassis mechanism (1) comprises an adhesive patch (101) for fixedly connecting to the patient's skin, a connecting sleeve column (102) arranged on one side of the center position of the adhesive patch (101), and a dimension marking line (103) arranged on a side of the adhesive patch (101) away from the connecting sleeve column (102); The dimension marking line (103) and the connecting sleeve column (102) are arranged concentrically, and an external thread (104) is provided on the outer wall of the connecting sleeve column (102). The connecting sleeve column (102) is threadedly connected to the sleeve shell (201) via the external thread (104).

6. A fecal liquid collection device for patients with rectal fistula according to claim 5, characterized in that: An inner wall of the casing (201) is provided with an internal thread (205) at one end away from the discharge port (202), and the internal thread (205) and the external thread (104) are thread-matched, and the sealing gasket (204) is arranged in the casing (201) in the area of ​​the internal thread (205).

7. A fecal liquid collection device for patients with rectal fistula according to claim 6, characterized in that: The drainage port (202) is opened at the center position of one end of the casing (201), and a guide surface (206) is opened at the drainage port (202) on the casing (201), and the guide surface (206) is arranged on the inner wall of the casing (201).

8. The fecal liquid collection device for patients with rectal fistula according to claim 7, characterized in that: The feces liquid collection mechanism (3) comprises a mounting seat (301) sleeved on the outside of the casing (201) and fixedly engaged with the casing (201), and also comprises a collection bag (302) arranged at one end of the mounting seat (301) for receiving feces liquid; and a driving assembly (5) arranged at one end of the mounting seat (301) close to the collection bag (302); A slot (303) is provided at one end of the inner wall of the mounting seat (301) away from the collecting bag (302), and a convex ring (207) is provided at one end of the circumferential outer wall of the casing (201) away from the collecting bag (302), and the convex ring (207) matches the slot (303).

9. A fecal liquid collection device for patients with rectal fistula according to claim 8, characterized in that: A plurality of scrapers (304) are arranged in an array at one end of the inner wall of the mounting seat (301) close to the slot (303), and the scrapers (304) are arranged in an inclined manner. The inner diameter of the scrapers (304) is smaller than the outer wall of the casing (201), and the scrapers (304) are made of slightly elastic plastic material; A matching ring (305) is provided at one end of the inner wall of the mounting seat (301) away from the slot (303), and the matching ring (305) matches the outer wall of one end of the discharge port (202) of the casing (201).

10. A fecal liquid collection device for patients with rectal fistula according to claim 9, characterized in that: The driving assembly (5) comprises a second support rod (501) arranged at one end of the mounting seat (301) away from the slot (303), and a top rod (502) arranged on the second support rod (501) and located at the axis of the mounting seat (301).

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