Hysteroscope suck-back prevention connector

Abstract

The utility model discloses an anti-suck-back connector of a hysteroscope, and belongs to the technical field of hysteroscope parts. The medical one-way filter comprises a medical one-way filter body, a first connector and a second connector, the first connector is communicated with one side of the one-way filter body, the second connector is communicated with the other side of the one-way filter body, and stable connecting mechanisms are arranged on the sides, away from the medical one-way filter body, of the first connector and the second connector. By arranging the fixed connecting mechanism, the connecting sleeve can be installed on the surface of the connecting ring through mutual matching of the connecting threads and the meshing threads, the connecting sleeve can drive the connecting pipe to be arranged on the surface of the matching pipe in a sleeving mode along the slope of the matching pipe through the clamping ring in the installation process, and the clamping ring is attached to the connecting ring; compared with an existing mode of direct sleeving and interference fit connection, the hysteroscope connecting pipe connecting device has the advantage of being stable in connection, the phenomenon that the connecting pipe is prone to falling off is avoided, and normal detection of a hysteroscope is prevented from being affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of hysteroscope parts and components, in particular to a hysteroscope anti-back-suction joint. Background Art

[0002] Hysteroscopy is an optical instrument used to observe, diagnose and treat the uterine cavity. Hysteroscopes can be divided into diagnostic and surgical types, and soft and hard types. Soft diagnostic hysteroscopes are made of advanced optical fibers, with a small diameter and can be bent at will. They are easy to observe and diagnose the entire uterine cavity. The inspection process is fast (about 2 to 5 minutes), painless and does not hurt the uterus.

[0003] During hysteroscopic surgery, water pipes need to be connected to hysteroscopic instruments. The water pipes used for hysteroscopes cannot be replaced for each operation, and repeated use may cause cross infection of patients. Therefore, a hysteroscopic anti-backflow joint is needed. The hysteroscopic anti-backflow joint is disposable, and the medical one-way filter in the middle part can effectively isolate the cross infection caused by liquid backflow, which is safer. For example, the hysteroscope anti-backflow joint disclosed in the existing patent CN201720455110.6 includes a medical one-way filter, a spiral interface and a convex interface; the medical one-way filter is provided with a cavity inside, and a one-way valve is provided inside the medical one-way filter; the left end outlet of the medical one-way filter is connected to the right end of the first connecting tube, and the right end outlet of the medical one-way filter is connected to the left end of the second connecting tube; the other end of the first connecting tube is provided with a convex interface; the other end of the second connecting tube is provided with a spiral interface, and the inner side wall of the lower end of the spiral interface is provided with an internal thread that cooperates with the hysteroscope interface, and the lower end of the second connecting tube passes through the lower end of the spiral interface and extends to the bottom of the lower end of the spiral interface. The hysteroscope anti-backflow joint is reasonably designed and disposable, and the medical one-way filter in the middle part can effectively isolate the cross infection caused by liquid backflow, which is safer. However, the right end of the first connecting tube and the left end of the second connecting tube in the above patent are respectively mounted on the first interface and the second interface, and there is an interference fit between the first interface and the second interface, and no relatively stable connecting mechanism is provided. The connection only by interference fit is not stable and is easy to fall off during use. Once the connecting tube falls off, it will affect the normal operation of the entire hysteroscope, and further affect the inspection progress.

[0004] Therefore, it is necessary to redesign the anti-back-suction joint of the hysteroscope to effectively prevent the phenomenon that the connection is not stable only through interference fit and is easy to fall off during use. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a hysteroscope anti-backsuction joint, which has the advantage of stable connection and solves the problem that the existing hysteroscope anti-backsuction joint is not provided with a relatively stable connection mechanism, so the connecting tube is easy to fall off during use, and once the connecting tube falls off, it will affect the normal operation of the entire hysteroscope.

[0006] The utility model provides the following technical solution: a hysteroscope anti-backflow joint, comprising a medical one-way filter, a first interface and a second interface, wherein the first interface is connected to one side of the one-way filter, and the second interface is connected to the other side of the one-way filter, and the first interface and the second interface are both provided with a stable connection mechanism on the side away from the medical one-way filter, and the first interface and the second interface are both connected to a connecting pipe on the side away from the medical one-way filter through the fixed connection mechanism;

[0007] The fixed connection mechanism includes a connecting ring fixedly connected to the surfaces of the first interface and the second interface, the surface of the connecting ring is fixedly connected with a connecting thread, the surface of the connecting thread is threadedly connected with an engaging thread, the surface of the engaging thread is fixedly connected with a connecting sleeve sleeved on the surface of the connecting ring, the outer side of the inner wall of the connecting sleeve is inclined, the first interface and the second interface are both connected to a matching tube on the side away from the medical one-way filter, the outer side of the connecting sleeve extends to the surface of the matching tube, the matching tube is inclined and cooperates with the inclined surface of the connecting sleeve, the connecting tube is sleeved on the surface of the matching tube, the inner side of the connecting tube extends to the interior of the connecting sleeve and is fixedly connected with a clamping ring clamped with the connecting sleeve, and the clamping ring is fitted with the connecting ring.

[0008] The outer side of the surface of the connecting sleeve is arranged in an arc shape, and the arc end of the connecting sleeve replaces the right-angle end.

[0009] The surface of the connecting sleeve is fixedly connected with friction strips, and the number of the friction strips is several and evenly distributed on the surface of the connecting sleeve.

[0010] The outer side of the inner wall of the connecting sleeve is provided with a plurality of evenly distributed rolling grooves, the inside of the rolling grooves is rollingly connected with balls, and the balls are fitted with the connecting pipe and the clamping ring.

[0011] The side of the clamping ring close to the medical one-way filter is fixedly connected with an annular sealing strip, and the side of the connecting ring away from the medical one-way filter is provided with an annular sealing groove clamped with the annular sealing strip.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a fixed connection mechanism, and can utilize the mutual cooperation of the connecting thread and the meshing thread to install the connecting sleeve on the surface of the connecting ring. During the installation process, the connecting sleeve will drive the connecting tube to be sleeved on the surface of the matching tube along the slope of the matching tube through the clamping ring, and make the clamping ring fit with the connecting ring, so as to complete the stable connection of the connecting tube. Compared with the existing direct sleeve and connection through interference fit, the device has the advantage of stable connection, which can prevent the connecting tube from falling off easily and affect the normal detection of the hysteroscope.

[0014] 2. The utility model provides the arc end of the connecting sleeve, so that the device has the advantage of protection and safety, and avoids the situation where the right-angled connecting sleeve scratches medical staff during use, thereby ensuring the safety of the connecting sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Figure 2 It is a connection schematic diagram of the first interface, the fixed connection mechanism and the connecting pipe of the utility model.

[0017] Figure 3 For this utility model Figure 2 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figures 1 to 3 As shown, the anti-backflow joint of the hysteroscope in this embodiment includes a medical one-way filter 1, a first interface 2 and a second interface 3, the first interface 2 is connected to one side of the one-way filter 1, the second interface 3 is connected to the other side of the one-way filter 1, and the first interface 2 and the second interface 3 are both provided with a stable connection mechanism 4 on the side away from the medical one-way filter 1, and the first interface 2 and the second interface 3 are both connected to a connecting pipe 5 on the side away from the medical one-way filter 1 through the fixed connection mechanism 4;

[0020] The fixed connection mechanism 4 includes a connecting ring 41 fixedly connected to the surfaces of the first interface 2 and the second interface 3, the surface of the connecting ring 41 is fixedly connected with a connecting thread 42, the surface of the connecting thread 42 is threadedly connected with an engaging thread 43, the surface of the engaging thread 43 is fixedly connected with a connecting sleeve 44 sleeved on the surface of the connecting ring 41, the outer side of the inner wall of the connecting sleeve 44 is inclined, the first interface 2 and the second interface 3 are connected to the side away from the medical one-way filter 1 with a matching tube 45, the outer side of the connecting sleeve 44 extends to the surface of the matching tube 45, the matching tube 45 is inclined and cooperates with the inclined surface of the connecting sleeve 44, the connecting tube 5 is sleeved on the surface of the matching tube 45, the inner side of the connecting tube 5 extends to the interior of the connecting sleeve 44 and is fixedly connected with a clamping ring 46 clamped with the connecting sleeve 44, and the clamping ring 46 is fitted with the connecting ring 41.

[0021] refer to Figure 2 The outer side of the surface of the connecting sleeve 44 is set as an arc, and the arc end of the connecting sleeve 44 replaces the right angle end.

[0022] In this embodiment, the arc end of the connecting sleeve 44 is provided, so that the device has the advantage of protection and safety, and the right-angled connecting sleeve 44 is prevented from scratching medical staff during use, thereby ensuring the safety of the connecting sleeve 44.

[0023] refer to Figure 2 The surface of the connecting sleeve 44 is fixedly connected with friction strips 6 , and the number of friction strips 6 is several and evenly distributed on the surface of the connecting sleeve 44 .

[0024] In this embodiment, the friction strip 6 is provided so that the device has the advantage of increasing friction, which can increase the friction when the connecting sleeve 44 is rotated, thereby avoiding slipping when the connecting sleeve 44 is rotated.

[0025] refer to Figure 3 A plurality of evenly distributed rolling grooves 7 are provided on the outer side of the inner wall of the connecting sleeve 44 , and balls 8 are rollingly connected inside the rolling grooves 7 , and the balls 8 are fitted with the connecting pipe 5 and the clamping ring 46 .

[0026] In this embodiment, the rolling groove 7 and the ball 8 are provided, so that the device has the advantage of increased smoothness, which can increase the smoothness between the connecting sleeve 44 and the clamping ring 46 and avoid wear between the connecting sleeve 44 and the clamping ring 46.

[0027] refer to Figure 3 The side of the clamping ring 46 close to the medical one-way filter 1 is fixedly connected with an annular sealing strip 9, and the annular sealing strip 9 is specifically made of soft rubber material. The side of the connecting ring 41 away from the medical one-way filter 1 is provided with an annular sealing groove 10 clamped with the annular sealing strip 9.

[0028] In this embodiment, the annular sealing strip 9 and the annular sealing groove 10 are provided, so that the device has the advantage of enhanced sealing performance, and the sealing performance between the clamping ring 46 and the connecting ring 41 can be enhanced to avoid leakage.

[0029] The utility model drives the connecting tube 5 to be sleeved on the surface of the matching tube 45 through the connecting sleeve 44, and then installs the connecting sleeve 44 on the surface of the connecting ring 41 through the mutual cooperation of the connecting thread 42 and the meshing thread 43. During the installation process, the connecting sleeve 44 will drive the connecting tube 5 to be sleeved on the surface of the matching tube 45 along the slope of the matching tube 45 through the clamping ring 46, and make the clamping ring 46 fit with the connecting ring 41. Through the firm connection of the thread, the connecting tube 5 can be firmly connected.

Claims

1. A hysteroscope anti-backflow connector, comprising a medical one-way filter (1), a first interface (2) and a second interface (3), characterized in that: The first interface (2) is connected to one side of the one-way filter (1), and the second interface (3) is connected to the other side of the one-way filter (1). The first interface (2) and the second interface (3) are both provided with a stable connection mechanism (4) on the side away from the medical one-way filter (1). The first interface (2) and the second interface (3) are both connected to a connecting pipe (5) on the side away from the medical one-way filter (1) via the stable connection mechanism (4). The fixed connection mechanism (4) comprises a connection ring (41) fixedly connected to the surface of the first interface (2) and the second interface (3); the surface of the connection ring (41) is fixedly connected with a connection thread (42); the surface of the connection thread (42) is threadedly connected with an engagement thread (43); the surface of the engagement thread (43) is fixedly connected with a connection sleeve (44) sleeved on the surface of the connection ring (41); the outer side of the inner wall of the connection sleeve (44) is inclined, and the first interface (2) and the second interface (3) are away from each other. One side of the medical one-way filter (1) is connected to a matching tube (45), the outer side of the connecting sleeve (44) extends to the surface of the matching tube (45), the matching tube (45) is arranged in an inclined shape and cooperates with the inclined surface of the connecting sleeve (44), the connecting tube (5) is sleeved on the surface of the matching tube (45), the inner side of the connecting tube (5) extends to the inside of the connecting sleeve (44) and is fixedly connected to a clamping ring (46) clamped to the connecting sleeve (44), and the clamping ring (46) is fitted with the connecting ring (41).

2. The hysteroscopic anti-backflow connector according to claim 1, characterized in that: The outer side of the surface of the connecting sleeve (44) is arranged in an arc shape.

3. The hysteroscopic anti-back-suction joint according to claim 2, characterized in that: The surface of the connecting sleeve (44) is fixedly connected with a friction strip (6), and the friction strips (6) are in a plurality and are evenly distributed on the surface of the connecting sleeve (44).

4. The hysteroscopic anti-backflow connector according to claim 2 or 3, characterized in that: The outer side of the inner wall of the connecting sleeve (44) is provided with a plurality of evenly distributed rolling grooves (7), the interior of the rolling grooves (7) is rollingly connected with balls (8), and the balls (8) are fitted with the connecting pipe (5) and the clamping ring (46).

5. The hysteroscopic anti-back-suction joint according to claim 4, characterized in that: The side of the clamping ring (46) close to the medical one-way filter (1) is fixedly connected to an annular sealing strip (9), and the side of the connecting ring (41) away from the medical one-way filter (1) is provided with an annular sealing groove (10) clamped to the annular sealing strip (9).

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