Auxiliary device for taking specimen through anus in NOSES operation

Abstract

The utility model discloses an auxiliary device for taking a specimen through the anus in a NOSES operation, which comprises an inserting cylinder, a connecting cylinder, a connecting rod and a connecting rod, wherein the center of the inserting cylinder is provided with an operating hole, the rear end of the inserting cylinder is provided with a connecting convex ring which protrudes outwards in the radial direction, and the periphery of the connecting convex ring is provided with the connecting cylinder; the front end of the protective cover is embedded into the connecting cylinder and is provided with an extension ring, and a through hole is formed in the center of one end, away from the inserting cylinder, of the protective cover; the pressing sleeve is in threaded connection with the connecting cylinder and is provided with a pressing part; the sealing sleeve penetrates through the through hole, and the center of the sealing sleeve is provided with an operation channel for an operation instrument to penetrate through. By means of the design of the insertion cylinder, the disposable medical sampling tube can be directly inserted into the rectum of a human body, so that medical instruments can penetrate into the insertion cylinder for sampling, complication risks caused by traditional abdominal wall incisions are avoided, and pain and recovery time of a patient are reduced; the pressing sleeve is in threaded connection with the connecting cylinder, installation and connection are convenient, and the sealing performance is good; the sealing sleeve can wrap the medical instrument, the sealing effect of one end is achieved, air leakage is reduced, and it is guaranteed that surgical operation is conducted smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a transanal specimen collection auxiliary device for NOSES surgery. Background Art

[0002] In the medical field, particularly when diagnosing digestive system diseases, doctors often need to obtain tissue or fluid samples from the rectum for pathological analysis. This procedure is crucial for disease diagnosis, but it also comes with certain challenges. Traditional rectal sampling methods typically involve making an incision in the abdominal wall to facilitate instrument insertion and sample collection. However, this method carries certain risks, including the potential for complications such as infection or poor healing. These complications not only increase patient discomfort but can also prolong recovery time. To mitigate these risks, modern medicine prefers a gentler sampling method: inserting medical instruments directly through the anus to obtain samples. This method avoids making an incision in the abdominal wall, thereby reducing the risk of complications. However, this direct anal sampling method also has its limitations. However, sampling through the anus often lacks a seal, which can lead to a decrease in rectal pressure, potentially compromising surgical procedures. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems in the prior art. To this end, the utility model proposes a NOSES surgery transanal specimen collection auxiliary device, which can.

[0004] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0005] A device for assisting in transanal specimen collection during NOSES surgery comprises: an insertion tube, the center of which is provided with an operating hole penetrating the insertion tube, the front end of the insertion tube being used for insertion into a human body, the rear end being provided with a connecting convex ring protruding radially outward, the outer periphery of the connecting convex ring being provided with a connecting tube extending rearward along the axis of the insertion tube; a protective cover, the front end of which is embedded in the connecting tube and provided with an epitaxial ring extending outward, the epitaxial ring being embedded in the connecting tube and fitting with the connecting convex ring, the center of the protective cover being provided with a through hole at one end away from the insertion tube; a pressing sleeve, which is threadedly connected to the connecting tube and provided with a pressing portion that is embedded in the connecting tube and presses the epitaxial ring, the pressing portion cooperating with the connecting convex ring to clamp and fix the epitaxial ring; a sealing sleeve, which is passed through the through hole and the center of which is provided with an operating channel for operating instruments to pass through.

[0006] Furthermore, the outer peripheral edge of the epitaxial ring is provided with a positioning protrusion extending back to the connecting protrusion, and the clamping portion is provided with a clamping protrusion avoiding the positioning protrusion. The clamping protrusion is located inside the positioning protrusion and clamps the epitaxial ring.

[0007] Furthermore, the compression sleeve is provided with a sleeve located on the outer peripheral side of the connecting tube, and the sleeve is threadedly connected to the outer periphery of the connecting tube.

[0008] Furthermore, the rear end of the sleeve is connected to the rear end of the pressing portion via a connecting end portion, and the sleeve, the pressing portion and the connecting end portion form an embedding groove for the connecting tube to be embedded.

[0009] Furthermore, a peripheral wall of the sealing sleeve is provided with a clamping groove for the perforated edge of the protective cover to be embedded in, and a front end edge of the sealing sleeve is provided with a chamfer.

[0010] Furthermore, the operating channel includes a contact hole section and an expansion hole section, which are arranged in sequence toward the rear. The expansion hole section is flared toward the rear, and the diameter of the contact hole section is smaller than that of the expansion hole section.

[0011] Furthermore, a central peripheral wall of the contact hole section is provided with an arched portion arched toward the center.

[0012] Furthermore, it also includes a sealing plug, which is connected to the outer peripheral wall of the sealing sleeve through a soft belt, and the sealing plug is used to be inserted into the operating channel.

[0013] Furthermore, one end of the sealing plug is used to be inserted into the operating channel, and the other end is provided with a pull-out plug.

[0014] Furthermore, the sealing plug is made of rubber or silicone.

[0015] The utility model has the following beneficial effects:

[0016] Through the design of the insertion tube, it can be directly inserted into the human rectum, so that medical instruments can be inserted into the insertion tube for sampling, avoiding the risk of complications caused by traditional abdominal wall incisions, and reducing the patient's pain and recovery time; the compression sleeve is threadedly connected to the connecting tube, and the outer ring is clamped and fixed with the connecting convex ring to achieve the connection and fixation of the insertion tube and the protective cover. The installation and connection are convenient and the sealing performance is good; the sealing sleeve is inserted into the perforation, and an operating channel for the operating instrument to pass through is provided in the center. The medical instrument passes through the operating channel for sampling. The sealing sleeve can wrap the medical instrument to achieve a sealing effect on one end, reduce air leakage, and ensure the smooth progress of the surgical operation.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of an exploded state of an embodiment of the present utility model;

[0021] Figure 3 It is a structural diagram of a sealing sleeve and a sealing plug;

[0022] Figure 4 It is a cross-sectional view of the embodiment of the utility model in combination with a medical device;

[0023] Figure 5 yes Figure 4 A magnified view of point A;

[0024] Figure 6 yes Figure 4 Magnified view of point B.

[0025] Legend:

[0026] Insertion tube 100, sampling forceps 101, operation hole 110, connecting collar 120, connecting tube 130;

[0027] Protective cover 200, epitaxial ring 210, positioning protrusion 211, through-hole 220;

[0028] Compression sleeve 300, embedding groove 301, compression portion 310, compression protrusion 311, sleeve 320, connecting end 330;

[0029] Sealing sleeve 400, operating channel 410, contact hole section 411, expansion hole section 412, arched portion 413, and mounting groove 420;

[0030] Sealing plug 500 , soft belt 510 , and pull-out plug 520 . DETAILED DESCRIPTION

[0031] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0035] Please refer to Figure 1 and Figure 2 The present invention provides a preferred embodiment of a transanal specimen collection assisting device for NOSES surgery, comprising an insertion tube 100, a protective cover 200, a compression sleeve 300, and a sealing sleeve 400. Both the insertion tube 100 and the protective cover 200 may be made of medical-grade plastics, such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), and high-performance polyolefin thermoplastic elastomer (TPE).

[0036] An operating hole 110 is provided at the center of the insertion tube 100, which passes through the insertion tube 100. The front end of the insertion tube 100 is used to be inserted into the human body. The rear end of the insertion tube 100 is provided with a connecting protrusion 120 that protrudes radially outward. The outer periphery of the connecting protrusion 120 is provided with a connecting tube 130 that extends backward along the axial direction of the insertion tube 100.

[0037] The front end of the protective cover 200 is embedded in the connecting tube 130 and is provided with an epitaxial ring 210 that expands and extends outward. The epitaxial ring 210 is embedded in the connecting tube 130 and fits with the connecting protrusion 120. A through hole 220 is provided in the center of the end of the protective cover 200 away from the insertion tube 100.

[0038] The compression sleeve 300 is threadedly connected to the connecting tube 130. The compression sleeve 300 has a compression portion 310 that is embedded in the connecting tube 130 and compresses the epitaxial ring 210. The compression portion 310 cooperates with the connecting bead 120 to clamp and secure the epitaxial ring 210. The protective cover 200 can be made of a flexible material, such as rubber or silicone. This allows the medical device to pass through the perforation 220 while utilizing the deformation capability of the protective cover 200 to allow the medical device to have a certain range of floating movement. Therefore, it is difficult for the protective cover 200 to be directly fixedly connected to the insertion tube 100, and the compression sleeve 300 is required to achieve a fixed connection with the insertion tube 100.

[0039] The sealing sleeve 400 is inserted into the through hole 220 , and an operating channel 410 for operating instruments to pass through is defined in the center of the sealing sleeve 400 .

[0040] The utility model provides a NOSES surgical specimen collection auxiliary device, which can be directly inserted into the human rectum through the design of the insertion tube 100, so as to provide medical instruments (such as Figure 4 The sampling forceps 101 shown are inserted into the insertion tube 100 for sampling, avoiding the risk of complications caused by traditional abdominal wall incisions and reducing the patient's pain and recovery time; the compression sleeve 300 is threadedly connected to the connecting tube 130, and the connecting convex ring 120 is used to clamp and fix the extension ring 210, so as to realize the connection and fixation of the insertion tube 100 and the protective cover 200. The installation and connection are convenient and the sealing is good; the sealing sleeve 400 is inserted into the perforation 220, and an operating channel 410 for the operating instrument to pass through is provided in the center. The medical instrument passes through the operating channel 410 for sampling. The sealing sleeve 400 can wrap the medical instrument to achieve a sealing effect at one end, reduce air leakage, and ensure the smooth progress of the surgical operation.

[0041] Reference Figure 2 、 Figure 4 and Figure 5 In some embodiments of the present invention, a positioning protrusion 211 extending back to the connecting protrusion 120 is provided on the outer peripheral edge of the epitaxial ring 210, and the clamping portion 310 is provided with a clamping protrusion 311 avoiding the positioning protrusion 211. The clamping protrusion 311 is located on the inner side of the positioning protrusion 211 and presses the epitaxial ring 210, thereby limiting the deformation of the positioning protrusion 211 toward the center, preventing the epitaxial ring 210 from shrinking toward the center and disengaging from the clamping protrusion 311 and the connecting protrusion 120, thereby improving the stability of the component connection.

[0042] Reference Figure 2 、 Figure 4 and Figure 5 In a further embodiment of the present invention, the compression sleeve 300 is provided with a sleeve 320 located on the outer peripheral side of the connecting tube 130, and the sleeve 320 is threadedly connected to the outer periphery of the connecting tube 130, so that the sleeve 320 is on the outside of the connecting tube 130, which facilitates the screwing operation of the sleeve 320 to achieve a threaded connection with the connecting tube 130. The outer peripheral contour of the sleeve 320 is a regular polygon, which is convenient for screwing.

[0043] Reference Figure 5 In a further embodiment of the present invention, the rear end of the sleeve 320 is connected to the rear end of the clamping portion 310 through a connecting end 330. The sleeve 320, the clamping portion 310 and the connecting end 330 form a groove 301 for the connecting tube 130 to be embedded, thereby improving the tightness of the connection, and the connecting end 330 can also be offset against the connecting tube 130 to limit the screwing depth of the thread.

[0044] Reference Figure 3 and Figure 6 In some embodiments of the present invention, the sealing sleeve 400 is provided with a snap-fitting groove 420 on its peripheral wall for the edge of the through-hole 220 of the protective cover 200 to engage. The snap-fitting groove 420 allows the sealing sleeve 400 to be connected to the protective cover 200. The front edge of the sealing sleeve 400 is chamfered to facilitate insertion of the front end of the sealing sleeve 400 into the through-hole 220 during installation. During installation, the front end of the sealing sleeve 400 is inserted into the through-hole 220 until the edge of the through-hole 220 of the protective cover 200 partially engages the snap-fitting groove 420, completing the installation and connection between the sealing sleeve 400 and the protective cover 200. The sealing sleeve 400 can be made of an elastic material (rubber or silicone). When the sampling forceps 101 is inserted through it, it elastically deforms and adheres tightly to the peripheral wall of the sampling forceps 101. Compared to inserting the sampling forceps 101 directly through the through-hole 220, the use of the sealing sleeve 400 provides a better seal. The edges of the sealing sleeve 400 and the through-hole 220 can be filled with sealant to improve sealing and connection stability.

[0045] Reference Figure 3 and Figure 6 In some embodiments of the present invention, the operating channel 410 includes a contact hole section 411 and an expansion hole section 412. The contact hole section 411 and the expansion hole section 412 are arranged in sequence toward the rear. The expansion hole section 412 is flared toward the rear. The diameter of the contact hole section 411 is smaller than that of the expansion hole section 412. The contact hole section 411 is used to contact the hollow rod in the middle of the sampling forceps 101, thereby achieving a better sealing effect. The expansion hole section 412 facilitates the insertion of the sampling forceps 101, and has a certain swinging space after insertion.

[0046] Reference Figure 6 In some embodiments of the present invention, a central peripheral wall of the contact hole section 411 is provided with an arched portion 413 that arches toward the center, so that after the sampling forceps 101 is inserted, the arched portion 413 elastically deforms and fits tightly against the peripheral wall of the sampling forceps 101, thereby achieving a better sealing effect.

[0047] Reference Figure 3 In some embodiments of the present invention, a sealing plug 500 is further included. The sealing plug 500 is connected to the outer peripheral wall of the sealing sleeve 400 through a soft belt 510. The sealing plug 500 is used to be inserted into the operating channel 410.

[0048] Reference Figure 3 In some embodiments of the present invention, one end of the sealing plug 500 is used to be inserted into the operating channel 410, and the other end is provided with a pull-out plug 520, so as to facilitate the operation of the pull-out plug 520 to pull out and insert the sealing plug 500.

[0049] In the specific embodiment of the present invention, the sealing plug 500 is made of rubber or silicone material, which has a good sealing effect. It is understandable that the sealing plug 500, the soft belt 510 and the sealing sleeve 400 can be designed as an integral molding to facilitate processing.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for assisting the extraction of specimens through the anus during NOSES surgery, characterized in that: include: An insertion tube (100) is provided with an operation hole (110) at its center that passes through the insertion tube (100); the front end of the insertion tube (100) is used for insertion into a human body; the rear end is provided with a connecting convex ring (120) that protrudes radially outward; and the outer periphery of the connecting convex ring (120) is provided with a connecting tube (130) that extends rearward along the axis direction of the insertion tube (100); The protective cover (200) has a front end embedded in the connecting tube (130) and is provided with an outwardly expanding epitaxial ring (210), the epitaxial ring (210) is embedded in the connecting tube (130) and fits with the connecting convex ring (120), and a through hole (220) is provided at the center of one end of the protective cover (200) away from the insertion tube (100); A compression sleeve (300) is threadedly connected to the connecting tube (130) and is provided with a compression portion (310) embedded in the connecting tube (130) and compressing the epitaxial ring (210), wherein the compression portion (310) cooperates with the connecting convex ring (120) to clamp and fix the epitaxial ring (210); The sealing sleeve (400) is passed through the through hole (220) and has an operating channel (410) at its center for the operating instrument to pass through.

2. The NOSES surgery transanal specimen collection auxiliary device according to claim 1, characterized in that: The outer peripheral edge of the epitaxial ring (210) is provided with a positioning protrusion (211) extending away from the connecting protrusion (120); the pressing portion (310) is provided with a pressing protrusion (311) avoiding the positioning protrusion (211); the pressing protrusion (311) is located inside the positioning protrusion (211) and presses the epitaxial ring (210).

3. The NOSES surgery transanal specimen collection auxiliary device according to claim 1 or 2, characterized in that: The compression sleeve (300) is provided with a sleeve (320) located on the outer peripheral side of the connecting cylinder (130), and the sleeve (320) is threadedly connected to the outer periphery of the connecting cylinder (130).

4. The NOSES surgery transanal specimen collection auxiliary device according to claim 3, characterized in that: The rear end of the sleeve (320) is connected to the rear end of the pressing portion (310) via a connecting end (330), and the sleeve (320), the pressing portion (310) and the connecting end (330) form an embedding groove (301) for embedding the connecting tube (130).

5. The NOSES surgery transanal specimen collection auxiliary device according to claim 1, characterized in that: The peripheral wall of the sealing sleeve (400) is provided with a clamping groove (420) for the edge of the perforation (220) of the protective cover (200) to be embedded, and the front edge of the sealing sleeve (400) is provided with a chamfer.

6. The NOSES surgery transanal specimen collection auxiliary device according to claim 1, characterized in that: The operating channel (410) comprises a contact hole section (411) and an expansion hole section (412), wherein the contact hole section (411) and the expansion hole section (412) are arranged in sequence toward the rear, and the expansion hole section (412) is flared toward the rear, and the diameter of the contact hole section (411) is smaller than that of the expansion hole section (412).

7. The NOSES surgery transanal specimen collection auxiliary device according to claim 6, characterized in that: A central peripheral wall of the contact hole section (411) is provided with an arched portion (413) arched toward the center.

8. The NOSES surgery transanal specimen collection auxiliary device according to claim 1 or 6, characterized in that: It also includes a sealing plug (500), which is connected to the outer peripheral wall of the sealing sleeve (400) through a soft belt (510), and the sealing plug (500) is used to be inserted into the operating channel (410).

9. The NOSES surgery transanal specimen collection auxiliary device according to claim 8, characterized in that: One end of the sealing plug (500) is used to be inserted into the operating channel (410), and the other end is provided with a pull-out plug (520).

10. The NOSES surgery transanal specimen collection auxiliary device according to claim 8, characterized in that: The sealing plug (500) is made of rubber or silicone material.

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