Percutaneous nephroscope sheath capable of adjusting height of side hole

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a percutaneous nephroscope sheath capable of adjusting the height of a side hole, which comprises an operation sheath shell serving as a connecting base frame, an operation cavity is formed in the operation sheath shell, a sliding groove is formed in the operation cavity, and a through hole communicated with the operation cavity is formed in the position, corresponding to the sliding groove, of the outer side of the operation sheath shell. The side-through component is connected in the operation sheath shell and serves as a stone fragment outlet, the side-through component comprises a catheter which is connected in the sliding groove in a sliding mode and communicated with the operation cavity, the outer side of the catheter is communicated with a connecting pipe, the connecting pipe extends to the outer side of the operation sheath shell through the through hole, and the arranged sliding groove is matched with the catheter, so that the position of the catheter in the sliding groove is convenient to move; the height of the side hole can be adjusted by changing the height position of the connecting pipe, the depth of the sheathing canal entering the collection system can be adjusted conveniently in the operation, stone fragments can be flushed out more efficiently, and the matching requirements of different patients for the height position of the water outlet in the operation are met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a percutaneous nephroscopic sheath with adjustable side hole height. Background Art

[0002] Percutaneous nephrolithotomy is still the gold standard for the treatment of complex upper urinary tract stones. Currently, percutaneous nephrolithotomy sheaths are roughly divided into two categories: ordinary sheaths and negative pressure suction sheaths.

[0003] The above two sheaths have the same disadvantage, that is, the length of the sheath is fixed, and the height of the water outlet is fixed. Because a large amount of stone fragments need to be removed through the sheath during percutaneous nephrolithotomy, the closer the water outlet is to the front end of the sheath, the higher the efficiency. At the same time, the sheath needs to be moved frequently during the operation to adjust the depth of the sheath entering the collecting system.

[0004] Different patients often have different requirements for matching the height of the water outlet during surgery. Even for the same patient undergoing the same surgery, the height of the water outlet may need to be adjusted during the operation. Currently, various types of percutaneous nephroscopic sheaths on the market cannot adjust the height of the water outlet, which is inconvenient to operate. Therefore, a percutaneous nephroscopic sheath with adjustable side hole height is proposed to better meet surgical needs. The biggest feature of the percutaneous nephroscopic sheath is that the height of the side hole can be adjusted, which is convenient for adjusting the depth of the sheath entering the collecting system during surgery and for more efficient flushing of stone fragments. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide a percutaneous nephroscopic sheath with adjustable side hole height, which can cooperate with the catheter through the set slide groove to facilitate the movement of the catheter from the position in the slide groove, and then change the height position of the connecting tube, so as to adjust the height of the side hole, facilitate intraoperative adjustment of the depth of the sheath entering the collecting system and more efficiently flush out stone fragments, and meet the matching requirements of different patients for the height of the water outlet position during surgery.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A percutaneous nephroscopic sheath with adjustable side hole height, comprising:

[0009] An operating sheath shell connected to the base frame, an operating cavity is provided in the operating sheath shell, a slide groove is provided in the operating cavity, and a through hole communicating with the operating cavity is provided on the outer side of the operating sheath shell at a position corresponding to the slide groove;

[0010] The side passage component is connected to the operating sheath housing and serves as an outlet for stone fragments.

[0011] As a preferred solution of a percutaneous nephroscopic sheath with adjustable side hole height described in the utility model, the side passage component includes a catheter slidably connected in a slide groove and connected to the operating cavity, and a connecting tube is connected to the outside of the catheter, and the connecting tube extends to the outside of the operating sheath shell through the through hole.

[0012] As a preferred solution of the percutaneous nephroscopic sheath with adjustable side hole height described in the utility model, in order to prevent the liquid from flowing out through the chute, the outer side of the catheter is coated with a sealing gasket, and the sealing gasket is arranged in contact with the chute.

[0013] As a preferred solution of the percutaneous nephroscopic sheath with adjustable side hole height described in the utility model, in order to facilitate the entry of fluid into the catheter, arc-shaped sections are provided at both ends of the catheter.

[0014] As a preferred solution of the percutaneous nephroscopic sheath with adjustable side hole height described in the utility model, the movement stroke of the connecting tube along the through hole is the same as the upward and downward sliding stroke of the catheter along the slide groove.

[0015] As a preferred solution of a percutaneous nephroscopic sheath with adjustable side hole height described in the utility model, wherein: the outer port of the connecting tube can be connected to a negative pressure suction auxiliary device, and the front end of the operating sheath shell is a horizontal section or an oblique section.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] By cooperating with the catheter through the provided slide groove, it is convenient to move the catheter from the slide groove, and then change the height position of the connecting tube, so as to adjust the height of the side hole, facilitate intraoperative adjustment of the depth of the sheath entering the collecting system and more efficiently flush out stone fragments, and meet the matching requirements of different patients for the height of the water outlet during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

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

[0020] Figure 2 For this utility model Figure 1Schematic diagram of explosion structure;

[0021] Figure 3 This is a schematic diagram of the internal structure of the operating sheath of the utility model;

[0022] Figure 4 For this utility model Figure 1 Schematic diagram of the cross-section structure.

[0023] In the figure: 100 operating sheath housing, 110 operating cavity, 120 slide groove, 121 through hole, 200 side passage component, 210 catheter, 211 sealing pad, 220 connecting pipe. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The utility model provides a percutaneous nephroscopic sheath with adjustable side hole height, please refer to Figure 1-4 , including an operating sheath housing 100 and a side passage component 200;

[0029] Please continue reading Figure 1-4 As an operating sheath shell 100 connected to the base frame, an operating cavity 110 is provided in the operating sheath shell 100, a slide groove 120 is provided in the operating cavity 110, and a through hole 121 communicating with the operating cavity 110 is provided at a position corresponding to the slide groove 120 on the outer side of the operating sheath shell 100;

[0030] Please continue reading Figure 1 , Figure 2 and Figure 4 , the side passage component 200 is connected to the operating sheath housing 100 and serves as an outlet for stone fragments;

[0031] The side passage component 200 includes a catheter 210 that is slidably connected to the slide groove 120 and is connected to the operation chamber 110. A connecting tube 220 is integrally formed and connected to the outer side of the catheter 210. The catheter 210 is connected to the connecting tube 220. The connecting tube 220 extends to the outer side of the operating sheath housing 100 through the through hole 121. The slide groove 120 cooperates with the catheter 210 to facilitate the movement of the catheter 210 from the slide groove 120 to change the height position of the connecting tube 220, so as to adjust the height of the side hole, facilitate the adjustment of the depth of the sheath entering the collection system during the operation, and more efficiently flush out the stone fragments, and meet the matching requirements of different patients for the height of the water outlet during the operation.

[0032] Furthermore, in order to prevent the liquid from flowing out through the chute 120, the outer side of the conduit 210 is covered with a sealing gasket 211, and the sealing gasket 211 is arranged in contact with the chute 120. The sealing gasket 211 is covered on the outer side of the conduit 210 as a sealing sleeve, which can prevent a gap from forming at the contact point between the conduit 210 and the chute 120, resulting in liquid flowing out;

[0033] Furthermore, to facilitate the fluid to enter the catheter, both ends of the catheter 210 are provided with arc-shaped sections (not marked in the figure);

[0034] Furthermore, the movement stroke of the connecting tube 220 along the through hole 121 is the same as the up and down sliding stroke of the guide tube 210 along the slide groove 120 .

[0035] Working principle: When the utility model is in use, the slide groove 120 is arranged to cooperate with the catheter 210, so as to facilitate the movement of the catheter 210 from the position in the slide groove 120, and then change the height position of the connecting tube 220, so as to adjust the height of the side hole, facilitate the adjustment of the depth of the sheath entering the collecting system during the operation and more efficiently flush out the stone fragments, and meet the matching requirements of different patients for the height of the water outlet during the operation.

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A percutaneous nephroscopic sheath with adjustable side hole height, characterized in that: include: An operating sheath shell (100) connected to a base frame, an operating cavity (110) is provided in the operating sheath shell (100), a slide groove (120) is provided in the operating cavity (110), and a through hole (121) communicating with the operating cavity (110) is provided on the outer side of the operating sheath shell (100) at a position corresponding to the slide groove (120); The side passage component (200) is connected to the operating sheath housing (100) and serves as an outlet for stone fragments.

2. A percutaneous nephroscopic sheath with adjustable side hole height according to claim 1, characterized in that: The side passage component (200) comprises a catheter (210) which is slidably connected in the slide groove (120) and is connected to the operating chamber (110). A connecting tube (220) is connected to the outside of the catheter (210), and the connecting tube (220) extends to the outside of the operating sheath housing (100) through the through hole (121).

3. A percutaneous nephroscopic sheath with adjustable side hole height according to claim 2, characterized in that: In order to prevent the liquid from flowing out through the chute (120), the outer side of the conduit (210) is coated with a sealing gasket (211), and the sealing gasket (211) is arranged in contact with the chute (120).

4. A percutaneous nephroscopic sheath with adjustable side hole height according to claim 2, characterized in that: To facilitate the fluid to enter the catheter, arc-shaped sections are provided at both ends of the catheter (210).

5. The percutaneous nephroscopic sheath with adjustable side hole height according to claim 2, characterized in that: The movement stroke of the connecting tube (220) along the through hole (121) is the same as the up and down sliding stroke of the guide tube (210) along the slide groove (120).

6. A percutaneous nephroscopic sheath with adjustable side hole height according to claim 2, characterized in that: The outer port of the connecting tube (220) can be connected to a negative pressure suction auxiliary device, and the front end of the operating sheath shell (100) is a horizontal section or an oblique section.

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