Calculus collecting device

Abstract

The utility model provides a calculus collecting device and a negative pressure ureter guiding sheath system, the calculus collecting device comprises an outer shell assembly, the outer shell assembly is provided with a mounting port, a collecting cavity and a liquid outlet, the mounting port is communicated with the liquid outlet through the collecting cavity, and the liquid outlet is used for being connected with a liquid outlet pipe; the first end cover is detachably connected to the opening wall of the mounting opening, a liquid inlet is formed in the first end cover, the liquid inlet communicates with the collecting cavity, and the liquid inlet is used for being connected with a liquid inlet pipe; the filtering part is connected to the inner wall of the first end cover, and the filtering part is used for filtering and collecting stones. The negative pressure ureter guiding sheath is used in cooperation with the negative pressure ureter guiding sheath, fine and firm fragments are filtered through the filtering piece and then collected in the filtering piece, and the collection efficiency and the operation efficiency of calculus specimens can be improved. The portability and the applicability are higher, and the popularization and the use are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ureteroscopic lithotripsy, in particular to a stone collecting device. Background Art

[0002] Flexible ureteroscopic lithotripsy (FURL) is a surgical procedure for treating kidney stones and upper ureteral stones. This technique uses the body's natural cavity to perform intracavitary lithotripsy and is currently the preferred treatment for kidney stones with an outer diameter of less than 2 cm and upper ureteral stones. Disposable ureteral guide sheaths are a commonly used medical device in flexible ureteroscopic lithotripsy, used to establish a channel for flexible ureteroscopes and other instruments to enter the urinary tract. The role of the ureteral guide sheath is not only to significantly reduce the risk of ureteral injury caused by repeated endoscopic operations, but also to increase the reflux of perfusion fluid, which is beneficial to the discharge of stone debris, improve the intracavitary surgical field, and reduce the pressure and temperature in the renal pelvis.

[0003] Based on the ureteral guide sheath, a new type of negative pressure suction ureteral guide sheath has appeared in recent years. The side branch of its terminal joint can be connected to negative pressure suction, and the tip of the guide sheath can directly suck out small stone fragments during surgery. Literature shows that this device can further reduce the pressure and temperature in the renal pelvis during surgery and significantly improve the primary stone clearance rate of surgery. However, in current clinical practice, the stone fragments sucked out during surgery flow into the negative pressure suction bag (bucket) in the operating room through the pipeline, which makes it inconvenient to collect stone specimens after surgery. The negative pressure ureteral guide sheath is a relatively new surgical consumable. The existing collection bottles on the market are often part of the manufacturer's special equipment and are not portable enough. There is currently a lack of universal portable stone specimen collection devices, which is not conducive to the promotion of technology. Summary of the invention

[0004] The utility model provides a stone collecting device to solve the above technical problems.

[0005] A stone collection device, the stone collection device comprising: an outer shell component, the outer shell component is provided with an installation port, a collection chamber and a liquid outlet, the installation port is connected with the liquid outlet through the collection chamber, and the liquid outlet is used to connect a liquid outlet pipe; a first end cover, the first end cover is detachably connected to the mouth wall of the installation port, and the first end cover is provided with a liquid inlet, the liquid inlet is connected with the collection chamber, and the liquid inlet is used to connect the liquid inlet pipe; a filter element, the filter element is connected to the inner wall of the first end cover, and the filter element is used to filter and collect stones.

[0006] Preferably, the outer shell assembly includes a cylinder and a second end cover, the cylinder and the second end cover are detachably connected to form the collecting chamber, the mounting port is arranged at one end of the cylinder, the second end cover and the first end cover are arranged at opposite ends of the cylinder, and the liquid outlet is arranged on the second end cover.

[0007] Preferably, the inner wall of the first end cover is provided with a first threaded portion, the wall of the mounting opening is provided with a second threaded portion, and the first end cover is threadably connected to the cylinder.

[0008] Preferably, the first end cover is further provided with a third threaded portion, one end of the filter element is provided with a fourth threaded portion, and the filter element is threadedly connected to the inner wall of the first end cover.

[0009] Preferably, the filter element is a plastic grid.

[0010] Preferably, the cylinder is a transparent member.

[0011] Preferably, the second end cover is provided with a fifth threaded portion, the port at the other end of the cylinder is provided with a sixth threaded portion, and the second end cover is threadedly connected to the cylinder.

[0012] Preferably, the first end cover is provided with a first connecting tube connected to the liquid inlet, and along the length direction of the first connecting tube, starting from the first end cover, at least a portion of the outer diameter of the first connecting tube tends to decrease, and the first connecting tube is used to connect the liquid inlet pipe.

[0013] Preferably, the outer shell assembly is provided with a second connecting tube connected to the liquid outlet, and along the length direction of the second connecting tube, starting from the outer shell assembly, at least a portion of the outer diameter of the second connecting tube tends to decrease, and the second connecting tube is used to connect the liquid outlet pipe.

[0014] Preferably, the first connecting tube and / or the second connecting tube is provided with a clamping portion, and the clamping portion is used to be clamped and matched with the liquid inlet tube and / or the liquid outlet tube.

[0015] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written description and the drawings.

[0016] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic structural diagram of a stone collection device described in one embodiment of the utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the stone collection device described in one embodiment of the utility model.

[0020] In the figure: 100, stone collection device; 110, outer shell assembly; 111, collection chamber; 112, liquid outlet; 113, cylinder; 114, second end cover; 115, second connecting pipe; 120, first end cover; 121, liquid inlet; 122, first connecting pipe; 130, filter element. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] The present utility model embodiment provides a stone collection device 100, such as Figure 1 and Figure 2As shown, the stone collection device 100 includes: an outer shell component 110, a first end cover 120 and a filter 130. The outer shell component 110 is provided with a mounting port, a collection chamber 111 and a liquid outlet 112, the mounting port is connected to the liquid outlet 112 through the collection chamber 111, and the liquid outlet 112 is used to connect the liquid outlet pipe; the first end cover 120 is detachably connected to the wall of the mounting port, and the first end cover 120 is provided with a liquid inlet 121, the liquid inlet 121 is connected to the collection chamber 111, and the liquid inlet 121 is used to connect the liquid inlet pipe; the filter 130 is connected to the inner wall of the first end cover 120, and the filter 130 is used to filter and collect stones.

[0024] The working principle and beneficial effects of the above technical solution are as follows: during use, the liquid inlet 121 and the liquid outlet 112 of the device are connected between the negative pressure ureteral guide sheath and the negative pressure suction bag (bucket) in the operating room, and are used in combination with the negative pressure ureteral guide sheath in the negative pressure ureteroscope lithotripsy surgery. Through the effect of negative pressure, the perfusion liquid is sucked out, and the small solid fragments are filtered through the filter 130 and collected in the filter 130, so there is no need to collect the postoperative stone specimens in the suction bag or suction bucket, which is conducive to improving the collection efficiency of stone specimens and the efficiency of surgery. In addition, the detachable connection design can adapt to the pipelines of various negative pressure ureteral guide sheaths, which is more portable and applicable, and convenient for promotion and use.

[0025] Optionally, the outer shell assembly 110 may be an integral structure or a combined structure.

[0026] In one embodiment, see Figure 1 and Figure 2 The outer shell assembly 110 includes a barrel 113 and a second end cover 114, and the barrel 113 and the second end cover 114 are detachably connected to form a collecting chamber 111. The installation port is arranged at one end of the barrel 113, the second end cover 114 and the first end cover 120 are arranged at opposite ends of the barrel 113, and the liquid outlet 112 is arranged on the second end cover 114.

[0027] The working principle and beneficial effects of the above technical solution are as follows: the combined outer shell assembly 110 is convenient for production and transportation, has lower cost and is easier to promote, and is convenient for connection with the pipeline of the guide sheath.

[0028] Optionally, the first end cover 120 and the cylinder body 113 may be connected by at least one of threaded connection, snap connection, bonding, magnetic connection, plug-in connection or other detachable connection methods.

[0029] In one embodiment, the inner wall of the first end cover 120 is provided with a first threaded portion, the wall of the installation port is provided with a second threaded portion, and the first end cover 120 is threadedly connected to the cylinder 113. For example, the first threaded portion is an internal thread, and the second threaded portion is an external thread.

[0030] The working principle and beneficial effects of the above technical solution are: convenient disassembly and assembly, and helpful to ensure sealing.

[0031] Optionally, the first end cover 120 and the filter element 130 may be connected by at least one of threaded connection, snap connection, bonding, magnetic connection, plug-in connection or other detachable connection methods.

[0032] In one embodiment, the first end cover 120 is further provided with a third threaded portion, one end of the filter element 130 is provided with a fourth threaded portion, and the filter element 130 is threadedly connected to the inner wall of the first end cover 120 .

[0033] The working principle and beneficial effects of the above technical solution are: strong connection stability and convenient collection of stone specimens after disassembly.

[0034] Optionally, the filter element 130 may be a filter cloth bag, a mesh bag, a plastic grid, a metal mesh or other filter structures.

[0035] Specifically, see Figure 1 , the filter element 130 is a plastic grid.

[0036] The working principle and beneficial effects of the above technical solution are: low production cost, able to reduce overall cost while ensuring filtration and collection of stones, convenient for disposable use, and more suitable for popularization and use.

[0037] In one embodiment, see Figure 1 , the barrel 113 is a transparent part. For example, the barrel 113 is a PVC plastic part.

[0038] The working principle and beneficial effects of the above technical solution are as follows: the provision of the transparent part can facilitate the observation of the liquid suction and stone collection, so as to more intuitively understand the progress of the operation.

[0039] Optionally, the second end cover 114 and the cylinder body 113 may be connected in a manner of at least one of threaded connection, snap connection, bonding, magnetic connection, plug-in connection or other detachable connection manners.

[0040] Specifically, the second end cover 114 is provided with a fifth threaded portion, and the port at the other end of the cylinder 113 is provided with a sixth threaded portion, and the second end cover 114 is threadedly connected to the cylinder 113 .

[0041] The working principle and beneficial effects of the above technical solution are: convenient disassembly and assembly, and helpful to ensure sealing.

[0042] In one embodiment, see Figure 1 and Figure 2The first end cover 120 is provided with a first connecting tube 122 connected to the liquid inlet 121. Along the length direction of the first connecting tube 122, starting from the first end cover 120, at least a part of the outer diameter of the first connecting tube 122 tends to decrease. The first connecting tube 122 is used to connect the liquid inlet pipe.

[0043] It should be noted that, along the length direction of the first connecting tube 122, starting from the first end cover 120, at least a part of the outer diameter of the first connecting tube 122 shows a decreasing trend. It should be understood that the outer diameter of the first connecting tube 122 may first remain unchanged and then decrease, may continue to decrease, may first increase and then decrease and then remain unchanged, may first increase and then remain unchanged and then decrease, etc.

[0044] The working principle and beneficial effects of the above technical solution are: it can adapt to different types of liquid inlet pipes by changing the diameter, which has stronger adaptability and can also improve the sealing performance to avoid leakage.

[0045] In one embodiment, see Figure 1 and Figure 2 The outer shell component 110 is provided with a second connecting pipe 115 connected to the liquid outlet 112. Along the length direction of the second connecting pipe 115, starting from the outer shell component 110, at least a part of the outer diameter of the second connecting pipe 115 is decreasing. The second connecting pipe 115 is used to connect the liquid outlet pipe. The length direction of the second connecting pipe 115 is the same as the length direction of the first connecting pipe.

[0046] The working principle and beneficial effects of the above technical solution are: it can adapt to different types of liquid outlet pipes by changing the diameter, which has stronger adaptability and can also improve the sealing performance to avoid leakage.

[0047] In one embodiment, the utility model further provides a negative pressure ureteral guide sheath system (not shown in the figure), and the negative pressure ureteral guide sheath system includes any one of the above-mentioned stone collection devices 100.

[0048] The working principle and beneficial effects of the above technical solution are as follows: during use, the liquid inlet 121 and the liquid outlet 112 of the device are connected between the negative pressure ureteral guide sheath and the negative pressure suction bag (bucket) in the operating room, and are used in combination with the negative pressure ureteral guide sheath in the negative pressure ureteroscope lithotripsy surgery. Through the effect of negative pressure, the perfusion liquid is sucked out, and the small solid fragments are filtered through the filter 130 and collected in the filter 130, so there is no need to collect the postoperative stone specimens in the suction bag or suction bucket, which is conducive to improving the collection efficiency of stone specimens and the efficiency of surgery. In addition, the detachable connection design can adapt to the pipelines of various negative pressure ureteral guide sheaths, which is more portable and applicable, and convenient for promotion and use.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A stone collection device (100), characterized in that: The stone collection device (100) comprises: An outer shell component (110), the outer shell component (110) being provided with a mounting port, a collecting chamber (111) and a liquid outlet (112), the mounting port being in communication with the liquid outlet (112) through the collecting chamber (111), and the liquid outlet (112) being used for connecting to a liquid outlet pipe; a first end cover (120), the first end cover (120) being detachably connected to the wall of the installation opening, and the first end cover (120) being provided with a liquid inlet (121), the liquid inlet (121) being in communication with the collecting chamber (111), and the liquid inlet (121) being used to connect to a liquid inlet pipe; A filter element (130), the filter element (130) is connected to the inner wall of the first end cover (120), and the filter element (130) is used for filtering and collecting stones; the outer shell component (110) comprises a cylinder (113) and a second end cover (114), the cylinder (113) and the second end cover (114) are detachably connected to form the collection chamber (111), the installation port is arranged at one end of the cylinder (113), the second end cover (114) and the first end cover (120) are arranged at opposite ends of the cylinder (113), the liquid outlet (112) is arranged on the second end cover (114), and the cylinder (113) is a transparent member.

2. The stone collection device (100) according to claim 1, characterized in that: The inner wall of the first end cover (120) is provided with a first threaded portion, the wall of the installation opening is provided with a second threaded portion, and the first end cover (120) is threadedly connected to the cylinder (113).

3. The stone collection device (100) according to claim 1, characterized in that: The first end cover (120) is also provided with a third threaded portion, one end of the filter element (130) is provided with a fourth threaded portion, and the filter element (130) is threadedly connected to the inner wall of the first end cover (120).

4. The stone collection device (100) according to claim 1, characterized in that: The filter element (130) is a plastic grid.

5. The stone collection device (100) according to claim 1, characterized in that: The second end cover (114) is provided with a fifth threaded portion, and the port at the other end of the cylinder (113) is provided with a sixth threaded portion, and the second end cover (114) is threadedly connected to the cylinder (113).

6. The stone collection device (100) according to any one of claims 1 to 5, characterized in that: The first end cover (120) is provided with a first connecting pipe (122) connected to the liquid inlet (121); along the length direction of the first connecting pipe (122), starting from the first end cover (120), at least a portion of the outer diameter of the first connecting pipe (122) shows a decreasing trend; the first connecting pipe (122) is used to connect to the liquid inlet pipe.

7. The stone collection device (100) according to claim 6, characterized in that: The outer shell component (110) is provided with a second connecting pipe (115) connected to the liquid outlet (112); along the length direction of the second connecting pipe (115), starting from the outer shell component (110), at least a portion of the outer diameter of the second connecting pipe (115) tends to decrease; the second connecting pipe (115) is used to connect the liquid outlet pipe.

8. The stone collection device (100) according to claim 7, characterized in that: The first connecting tube (122) and / or the second connecting tube (115) are provided with a clamping portion, and the clamping portion is used to clamp and cooperate with the liquid inlet tube and / or the liquid outlet tube.

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