A bendable handle for a ureteral guide sheath

Abstract

The utility model relates to a kind of bending handle for ureter guide sheath, including upper shell, traction silk disc, lower shell, traction silk disc and locking assembly;Upper shell and lower shell are connected to form handle main body, traction silk disc is rotatably installed between upper shell and lower shell, and locking assembly is installed in upper shell;One end of handle main body can be connected with negative pressure connector, sheath tube can be extended into handle main body and connected with negative pressure connector, traction silk disc can be connected with sheath tube end by traction silk, and traction silk disc rotates to pull sheath tube end by traction silk, and locking assembly can be connected with upper shell and traction silk disc to realize positioning.It has beneficial effects that it is convenient and fast to operate, without continuous operation handle, effectively reduce the operation burden of doctor, improve surgical effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable handle for a ureteral guide sheath. Background Technology

[0002] A ureteral guiding sheath is a commonly used medical device in retrograde nephrectomy (RIRS) or examinations, playing a crucial role in establishing access and protecting the ureter. A ureteral guiding sheath typically consists of two parts: a dilator assembly and a sheath assembly, used to insert endoscopes and other instruments into the urinary tract. Proper and correct use of the ureteral guiding sheath can reduce patient pain and trauma, improve surgical success rates and patient cure rates, making it an indispensable medical device.

[0003] Currently, traditional sheaths often cannot be locked when bent, or the locking mechanism is not perfect. Doctors often need to continuously press the handle, which increases the workload of doctors, increases the difficulty and risk of surgery, and affects the surgical outcome. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a bending adjustment handle for a ureteral guide sheath, which solves the technical problems of the prior art being unable to lock or not being convenient enough in locking and bending, increasing the doctor's operating burden and affecting the surgical effect.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] This utility model provides a bending handle for a ureteral guiding sheath, including an upper shell, a traction wire disc, a lower shell, and a locking assembly; the upper shell and the lower shell are connected to form the handle body, the traction wire disc is rotatably installed between the upper shell and the lower shell, and the locking assembly is installed on the upper shell; one end of the handle body can be connected to a negative pressure connector, the sheath can extend into the handle body and connect to the negative pressure connector, the traction wire disc can be connected to the end of the sheath through the traction wire, the rotation of the traction wire disc can pull the end of the sheath to bend through the traction wire, and the locking assembly can connect the upper shell and the traction wire disc to achieve positioning.

[0009] Optionally, the locking assembly includes a locking bolt and a knob; the knob is mounted on the head of the locking bolt; the locking bolt is mounted in the mounting hole of the upper housing, and the traction spool has a threaded hole, the mounting hole and the threaded hole are connected, and positioning is achieved by screwing the locking bolt into the threaded hole through the knob.

[0010] Optionally, the traction spool is provided with a handle and a fixing screw; the traction wire is connected to the traction spool by the fixing screw, and the handle is located on the side of the traction spool to facilitate rotation of the traction spool.

[0011] Optionally, the fixing screw is located on the end face of the wire passage groove of the traction spool.

[0012] Optionally, the upper housing is provided with a scale extending circumferentially thereon; the handle is provided with an arrow pointing to the scale.

[0013] Optionally, the upper and lower housings are connected by snap-fit.

[0014] Optionally, an installation channel is provided inside the lower housing, through which the sheath is connected to the negative pressure connector.

[0015] Optionally, the negative pressure connector can be a Y-type negative pressure connector, a W-type negative pressure connector, or other types of negative pressure connectors.

[0016] Optionally, an external plug is provided on the outside of the lower housing.

[0017] (III) Beneficial Effects

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a bending handle for a ureteral guide sheath. In use, the traction wire disc rotates and pulls the end of the sheath to produce a bend. After the target bend is reached, the traction wire disc and the upper shell are connected and locked by the positioning component. The operation is convenient and quick, and there is no need to continuously operate the handle, which effectively reduces the doctor's workload and improves the surgical effect. Attached Figure Description

[0020] Figure 1 This is an exploded view of the structure of a bending handle for a ureteral guide sheath according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the traction coil in Embodiment 1 of this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the locking bolt not locking the traction coil in Embodiment 1 of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the locking bolt locking the traction coil in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the ureteral guiding sheath in Embodiment 2 of this utility model.

[0025] [Explanation of Labels in the Attached Image]

[0026] 1: Upper housing; 11: Scale; 2: Lower housing; 21: External plug; 3: Traction coil; 31: Handle; 32: Fixing screw; 33: Arrow; 41: Locking bolt; 42: Knob; 5: Sheath; 6: Negative pressure connector. Detailed Implementation

[0027] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0028] Example 1:

[0029] like Figure 1 As shown, this embodiment provides a bending handle for a ureteral guiding sheath, including an upper housing 1, a lower housing 2, a traction wire spool 3, and a locking assembly. The upper housing 1 and lower housing 2 are connected to form the handle body. The traction wire spool 3 is rotatably installed between the upper housing 1 and the lower housing 2. The locking assembly is installed on the upper housing 1. One end of the handle body can be connected to a negative pressure connector 6. The sheath tube 5 can extend into the handle body and connect to the negative pressure connector 6. The traction wire spool 3 can be connected to the end of the sheath tube 5 through a traction wire. The rotation of the traction wire spool 3 pulls the end of the sheath tube 5 to bend through the traction wire. The locking assembly can connect and position the upper housing 1 and the traction wire spool 3. The upper housing 1 and lower housing 2 are connected by a snap-fit. An installation channel is provided inside the lower housing 2, and the sheath tube 5 is connected to the negative pressure connector 6 through the installation channel. An external plug 21 is provided on the outside of the lower housing 2 to facilitate connection with external devices.

[0030] Specifically, during use, the traction wire disc 3 is rotated to pull the end of the sheath tube 5 and bend it by the traction wire. After the target bending degree is achieved, the traction wire disc 3 and the upper housing 1 are connected and locked by the positioning component. The operation is convenient and quick, and there is no need to continuously operate the handle, which effectively reduces the doctor's operating burden and improves the surgical effect.

[0031] Furthermore, such as Figures 1-4 As shown, the locking assembly includes a locking bolt 41 and a knob 42; the knob 42 is mounted on the head of the locking bolt 41; the locking bolt 41 is installed in the mounting hole of the upper housing 1, and the traction coil 3 has a threaded hole. The mounting hole and the threaded hole are connected. During positioning, the locking bolt 41 is screwed into the threaded hole by the knob 42, so that the locking bolt 41 is pressed tightly against the upper housing 1 to achieve positioning. The positioning method is simple and quick, convenient for doctors to operate, and does not affect the progress of surgery.

[0032] Furthermore, such as Figure 2 As shown, the traction wire reel 3 is equipped with a handle 31 and a fixing screw 32 for the traction wire. One end of the traction wire is pre-embedded inside the sheath 5, and the other end is wound around the fixing screw 32. The traction wire is connected to the traction wire reel 3 via the fixing screw 32. The handle 31 is located on the side of the traction wire reel 3 to facilitate rotation of the traction wire reel 3. Specifically, the fixing screw 32 is located on the end face of the wire groove of the traction wire reel 3. In this embodiment, the upper housing 1 is provided with a scale 11 extending circumferentially thereon; the handle 31 is provided with an arrow 33 pointing to the scale 11, which facilitates the doctor to accurately determine the curvature of the sheath 5.

[0033] The bending adjustment handle for the ureteral guiding sheath provided in this embodiment is used as follows: The traction wire disc 3 is rotated using the handle 31. The curvature of the sheath 5 is determined according to the scale 11 indicated by arrow 33 on the handle 31. The end of the sheath 5 is bent to the target curvature by pulling the traction wire. Then, the locking bolt 41 is screwed into the threaded hole using the knob 42 to lock the traction wire disc 3. When the curvature of the sheath 5 needs to be adjusted, the locking bolt 41 is loosened using the knob 42, the rotation angle of the traction wire disc 3 is adjusted, and then the locking bolt 41 is screwed into the threaded hole again using the knob 42.

[0034] Example 2:

[0035] like Figure 5 As shown, this embodiment provides a ureteral guiding sheath, which is the application of the bending adjustment handle described in Embodiment 1 in a surgical device. It includes a sheath 5, a negative pressure connector 6, and the bending adjustment handle described in Embodiment 1. The sheath 5, the bending adjustment handle, and the negative pressure connector 6 are connected sequentially, with the sheath 5 connected to the negative pressure connector 6 via the bending adjustment handle. In this embodiment, the negative pressure connector 6 is a Y-type negative pressure connector, a W-type negative pressure connector, or another type of negative pressure connector.

[0036] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A bending handle for a ureteral guide sheath, characterized in that, It includes an upper housing (1), a lower housing (2), a traction coil (3), and a locking assembly; The upper housing (1) and the lower housing (2) are connected to form the handle body. The traction coil (3) is rotatably installed between the upper housing (1) and the lower housing (2). The locking assembly is installed on the upper housing (1). One end of the handle body can be connected to the negative pressure connector (6), the sheath (5) can be inserted into the handle body and connected to the negative pressure connector (6), the traction coil (3) can be connected to the end of the sheath (5) through the traction wire, the rotation of the traction coil (3) can pull the end of the sheath (5) to bend through the traction wire, and the locking assembly can connect the upper shell (1) and the traction coil (3) to achieve positioning; The locking assembly includes a locking bolt (41) and a knob (42); The knob (42) is installed on the head of the locking bolt (41); the locking bolt (41) is installed in the mounting hole of the upper housing (1), and the traction spool (3) has a threaded hole. The mounting hole and the threaded hole are connected. When positioning, the locking bolt (41) is screwed into the threaded hole by the knob (42) to achieve positioning.

2. The bending handle for the ureteral guide sheath as described in claim 1, characterized in that, The traction spool (3) is equipped with a handle (31) and a fixing screw (32); The traction wire is connected to the traction wire disc (3) by a fixing screw (32), and the handle (31) is located on the side of the traction wire disc (3) to facilitate the rotation of the traction wire disc (3).

3. The bending handle for the ureteral guide sheath as described in claim 2, characterized in that, The fixing screw (32) is set on the end face of the wire groove of the traction coil (3).

4. The bending handle for the ureteral guide sheath as described in claim 2, characterized in that, The upper housing (1) is provided with a scale (11) extending circumferentially thereon. An arrow (33) pointing to the scale (11) is provided on the handle (31).

5. The bending handle for the ureteral guide sheath as described in claim 1, characterized in that, The upper housing (1) and the lower housing (2) are connected by a snap fastener.

6. The bending handle for a ureteral guide sheath as described in claim 1, characterized in that, An installation channel is provided inside the lower housing (2), and the sheath (5) is connected to the negative pressure connector (6) through the installation channel.

7. The bending handle for the ureteral guide sheath as described in claim 1, characterized in that, The negative pressure connector (6) is either a Y-type negative pressure connector or a W-type negative pressure connector.

8. The bending handle for a ureteral guide sheath as described in claim 1, characterized in that, An external plug (21) is provided on the outside of the lower housing (2).

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