Novel pelvis endoscope operating handle

Abstract

The utility model relates to the technical field of medical equipment, in particular to a novel pelvis endoscope operating handle. Comprising a shell, a steering traction mechanism is arranged in the shell, two traction wires are arranged on the steering traction mechanism, two traction wheel assemblies are arranged in the shell, and each traction wire bypasses one traction wheel assembly to be connected with a guide pipe; and a working channel is arranged in the shell and is communicated with the guide pipe. The operating handle provided by the utility model is more in line with the ergonomic design, can provide comfortable operating experience in an operation of treating upper urinary calculi, and can prevent the operating handle and the tail end of the working channel from forming a larger break angle, and when the endoscope is rotated, the externally connected laser optical fiber has smaller swing compared with a traditional operating handle, so that the operating handle is more convenient to operate. And the laser fiber can be prevented from being broken accidentally.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a novel operating handle for a renal pelvis endoscope. Background Art

[0002] Southern China is a high-incidence area for urinary tract stones in the world, of which more than 70% are upper urinary tract stones. The current mainstream solution for treating upper urinary tract stones is the ureteroscopic laser lithotripsy using a pyeloscope. The traditional pyeloscope is a cylindrical operating handle with an angle control knob on top of the handle. By changing the direction of the angle control knob, the traction of the two internal steering wires can be changed, thereby changing the bending angle of the end of the pyeloscope.

[0003] However, in ureteroscopic surgery, the path to enter the ureter-renal pelvis is a horizontal path. This means that in actual upper urinary tract calculi treatment, if the surgeon's hand is in the functional position, it is easy to cause a large angle between the operating handle and the end of the working channel, which can easily lead to intraoperative laser fiber breakage and damage to the endoscope body; if the operating handle and the end of the working channel are kept within the safe angle range, the surgeon's wrist needs to bend excessively, which can easily increase surgical fatigue. Based on this, a new type of renal pelvic endoscope operating handle is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of pyeloscope operating handle, which is more ergonomically designed, can provide a comfortable operating experience in operations to treat upper urinary tract stones, and can avoid the operating handle and the end of the working channel from forming a large angle. When the endoscope is rotated, the external laser optical fiber has a smaller swing amplitude than the traditional operating handle, which can better avoid accidental breakage of the laser optical fiber.

[0005] The utility model provides a novel pyeloscope operating handle, comprising a shell, a steering traction mechanism is arranged inside the shell, two traction wires are arranged on the steering traction mechanism, two traction wheel assemblies are arranged inside the shell, each of the traction wires is distributed around one of the traction wheel assemblies and connected to a catheter; a working channel is arranged inside the shell, and the working channel is communicated with the catheter.

[0006] Furthermore, the shell is L-shaped; the vertical section of the shell is the operating part, and the horizontal section of the shell is the working part; the working channel is located in the horizontal section of the shell.

[0007] Furthermore, the traction wheel assembly is located at the connection between the horizontal section and the vertical section of the shell.

[0008] Furthermore, the traction wheel assembly includes a mounting base connected to the inner wall of the shell, a bearing is provided on the mounting base, and a first limiting ring and a second limiting ring are respectively provided at both ends of the bearing.

[0009] Furthermore, the mounting base is provided with bolts, and the bolts are connected to the inner wall of the shell.

[0010] Furthermore, two limiting grooves are provided inside the shell, each of the traction wires is located in one of the limiting grooves, and the limiting grooves are located at one end of the horizontal section of the shell close to the catheter.

[0011] Furthermore, the inlet of the working channel extends out of the shell.

[0012] Furthermore, the inlet of the working channel is arranged to be inclined upward relative to the horizontal section of the shell.

[0013] Furthermore, a mounting hole is provided at the bottom of the horizontal section of the shell, a signal wire is provided in the mounting hole, and the signal wire is connected to a circuit board located inside the shell.

[0014] Furthermore, an angle control knob is provided on the housing, and the angle control knob is connected to the steering traction mechanism.

[0015] In summary, compared with the prior art, the utility model has the following advantages:

[0016] The technical solution of the utility model can help change the traction direction of the traction wire and maintain a larger bending angle of the end of the endoscope, thereby avoiding the risk of accidental breakage of the laser fiber due to a large angle formed between the operating handle and the end of the working channel during surgery; when rotating the endoscope, the external laser fiber has a smaller swing amplitude than the traditional operating handle, which can better avoid accidental breakage of the laser fiber; and when using it, the surgeon's wrist does not need to bend excessively, which is not easy to aggravate surgical fatigue and is more ergonomically designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the operating handle in the embodiment of the utility model;

[0019] Figure 2It is a side view of the operating handle in the embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the operating handle in the embodiment of the utility model;

[0021] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle A;

[0022] Figure 5 It is a schematic diagram of the disassembled structure of the traction wheel in the embodiment of the utility model.

[0023] Explanation of the reference numerals: 1-housing; 2-angle control knob; 3-working channel; 4-signal wire; 5-conduit; 6-baffle; 7-traction wire; 8-traction wheel assembly; 801-mounting base; 802-bearing; 803-first limiting ring; 804-second limiting ring; 805-bolt; 9-limiting groove. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Example

[0028] A new type of renal pelvic endoscope operating handle, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a housing 1, a steering traction mechanism is provided inside the housing 1, two traction wires 7 are provided on the steering traction mechanism, two traction wheel assemblies 8 are symmetrically provided inside the housing 1, each traction wire 7 is passed around one traction wheel assembly 8, one end of the traction wire 7 away from the steering traction mechanism is connected to a conduit 5, and the inlet end of the conduit 5 is inserted into the housing 1. A working channel 3 is fixed inside the housing 1, and the working channel 3 is connected to the conduit 5.

[0029] An angle control knob 2 is installed on the outer side of the housing 1. The angle control knob 2 is connected to the steering traction mechanism inside the housing 1. The steering traction mechanism is driven to rotate by the angle control knob 2 to change the traction force of the two traction wires 7, thereby adjusting the bending angle of the catheter 5. The steering traction mechanism generally has multiple components. In order to prevent the components of the steering traction mechanism from being misplaced, a baffle 6 is provided on one side thereof. The setting of the baffle 6 is a conventional technical means in this field. The steering traction mechanism and the angle control knob 2 in this embodiment are both conventional components of the renal pelvic endoscope operating handle in the prior art of the present invention. Reference can be made to the disposable electronic ureteropelvic endoscope catheter (model PU3033A) produced by Zhuhai Pusheng Medical Technology Co., Ltd. and sold on the market.

[0030] The improvements in this embodiment lie in the shape of the housing 1 , the working channel 3 , and the traction wheel assembly 8 .

[0031] In this embodiment, the housing 1 is L-shaped, wherein the vertical section of the housing 1 is the operating section and the horizontal section is the working section. The steering traction mechanism is located at the upper part of the vertical section of the housing 1; the working channel 3 is located inside the horizontal section of the housing 1, and two traction wheel assemblies 8 are evenly distributed at the connection between the vertical section and the horizontal section of the housing 1.

[0032] The traction wheel assembly 8 includes a hollow cylindrical mounting base 801 fixed on one of the inner side walls of the housing 1. Figure 5 As shown, a bearing 802 is fixed on the mounting base 801, and a first limiting ring 803 and a second limiting ring 804 are respectively fixed at both ends of the bearing 802. The two limiting rings are provided to form a guide rail for the traction wire 7, so that the traction wire 7 is stabilized on the bearing 802. The mounting base 801 is fixed on one of the inner side walls of the housing 1, and a threaded through hole is provided on the axis of the mounting base 801. A bolt 805 is provided in the threaded through hole, and the bolt 805 passes through the threaded through hole on the mounting base 801 and is threadedly connected to the inner wall of the housing 1. The traction wheel assembly 8 is provided at the corner of the housing 1 to change the traction direction of the traction wire 7, reduce the steering resistance caused by the friction force, and maintain a larger bending angle of the endoscope end on the basis of the structure of the "L"-shaped endoscope operating handle.

[0033] like Figure 3 and Figure 4 As shown, two limiting grooves 9 distributed in the vertical direction are provided inside the horizontal section of the shell 1, and the traction wire 7 bypasses the bearing 802 of the traction wheel assembly 8 and passes through the limiting grooves 9 to be connected with the catheter 5.

[0034] The working channel 3 fixed to the horizontal section inside the housing 1 is a channel for placing the laser optical fiber. Its entrance extends out of the housing 1 and is tilted upward relative to the horizontal section of the housing 1, with an inclination angle of 20-25° relative to the horizontal line. The working channel 3 is horizontal except for the entrance; the outlet of the working channel 3 is fixedly connected to the entrance end of the catheter 5. The purpose of the upward tilt of the entrance of the working channel 3 is to avoid obstruction of the rotating endoscope during surgery.

[0035] The horizontal section of the housing 1 slightly protrudes from the vertical section at the entrance of the working channel 3 in order to provide a palm support point during the operation.

[0036] The bottom of the horizontal section of the housing 1 is provided with a mounting hole, into which a signal wire 4 is inserted, and the signal wire 4 is inserted into the housing 1 and connected to a circuit board installed inside the housing 1. The signal wire 4 and the circuit board and the connection method in this embodiment are all prior art in the art. The improvement here is the mounting position of the signal wire 4, which is more convenient to use and less likely to damage the signal wire compared to a conventional operating handle in which the catheter and the signal wire face the same direction.

[0037] When the new renal pelvis endoscope operating handle provided by the utility model is used, the laser optical fiber is inserted into the catheter 5 through the working channel 3, and the steering traction mechanism is driven by the angle control knob 2 to change the pulling force of the traction wire 7, thereby changing the bending curvature of the catheter 5.

[0038] The operating handle provided by the utility model improves the shell and working channel of the operating handle on the basis of the original pyeloscope, and is provided with a traction wheel assembly. Its appearance is L-shaped, which can better meet the ergonomics during the operation and provide a more comfortable operation experience. At the same time, it can also avoid the risk of accidental breakage of the laser fiber due to the large angle formed between the operating handle and the end of the working channel during the operation. When rotating the endoscope, the external laser fiber has a smaller swing amplitude than the traditional operating handle, which can better avoid accidental breakage of the laser fiber.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A new type of renal pelvis endoscope operating handle, characterized in that: The invention comprises a shell (1), wherein a steering traction mechanism is provided inside the shell (1), wherein two traction wires (7) are provided on the steering traction mechanism, wherein two traction wheel assemblies (8) are provided inside the shell (1), wherein each traction wire (7) passes around one of the traction wheel assemblies (8) and is connected to a catheter (5); and wherein a working channel (3) is provided inside the shell (1), wherein the working channel (3) is connected to the catheter (5).

2. The novel renal pelvis endoscope operating handle according to claim 1 is characterized in that: The shell (1) is L-shaped, the vertical section of the shell (1) is the operating section, and the horizontal section of the shell (1) is the working section; the working channel (3) is located in the horizontal section of the shell (1).

3. The new renal pelvis endoscope operating handle according to claim 2 is characterized in that: The traction wheel assembly (8) is located at the connection between the horizontal section and the vertical section of the housing (1).

4. The novel renal pelvis endoscope operating handle according to claim 3 is characterized in that: The traction wheel assembly (8) comprises a mounting base (801) connected to the inner wall of the housing (1), a bearing (802) is provided on the mounting base (801), and a first limiting ring (803) and a second limiting ring (804) are respectively provided at both ends of the bearing (802).

5. The novel renal pelvis endoscope operating handle according to claim 4 is characterized in that: The mounting base (801) is provided with bolts (805), and the bolts (805) are connected to the inner wall of the housing (1).

6. The novel renal pelvis endoscope operating handle according to claim 3 is characterized in that: Two limiting grooves (9) are arranged inside the shell (1), and each of the traction wires (7) is located in one of the limiting grooves (9). The limiting grooves (9) are located at one end of the horizontal section of the shell (1) close to the catheter.

7. The novel renal pelvis endoscope operating handle according to claim 1 is characterized in that: The inlet of the working channel (3) extends out of the shell (1).

8. The novel renal pelvis endoscope operating handle according to claim 7 is characterized in that: The inlet of the working channel (3) is arranged obliquely upward relative to the horizontal section of the shell (1).

9. The novel renal pelvis endoscope operating handle according to claim 1 is characterized in that: A mounting hole is provided at the bottom of the horizontal section of the shell (1), a signal wire (4) is provided in the mounting hole, and the signal wire (4) is connected to a circuit board located inside the shell (1).

10. The novel renal pelvis endoscope operating handle according to claim 1 is characterized in that: The housing (1) is provided with an angle control knob (2), and the angle control knob (2) is connected to the steering traction mechanism.

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