Laser resectoscope and handle sliding seat thereof

Abstract

The utility model provides a laser resectoscope and a handle sliding seat thereof. The handle sliding seat comprises a fixed handle, a movable handle, a positioning tube and a sliding seat body, a connecting hole penetrates through the sliding seat body, an optical fiber tube is arranged at the right end of the connecting hole, and a fixing assembly is arranged on the sliding seat body; the laser resectoscope comprises an outer sheath, an inner sheath, an endoscope, an electrode, a laser assembly and the handle sliding seat, the laser assembly comprises an optical fiber guide tube and a laser optical fiber, the optical fiber is fixed in the connecting hole through a fixing assembly, and the electrode comprises a double-core wire. The handle sliding seat can be used for electrode connection and can also be used for optical fiber connection, so that electrode resection and laser resection can share the same set of handle sliding seat, integration of various treatment operations can be achieved, and operation efficiency is improved. The device also has the advantages of convenient switching, reduced cost and the like, and can improve the operation efficiency and accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of tissue cutting and pulverizing devices, in particular to a laser resectoscope and a handle slide seat thereof. Background Art

[0002] The electrosurgical equipment used in prostate surgery usually consists of an observation mirror, a joystick base and a cutting tool. The joystick base includes components such as a fixed handle, a movable handle and a sliding block. These components are pre-assembled as a whole structure and are not suitable for separation during surgery. Cutting tools such as electrodes or laser devices are connected to the sliding block, and the sliding block and cutting tools can be driven to move in the observation mirror by moving the handle. Since the electrosurgical and laser equipment have different structures, they each require matching joystick bases and other components. During surgery, if the cutting tool needs to be replaced, the entire electrosurgical equipment must be disassembled and the relevant joystick bases must be replaced, which may delay the efficiency of the operation. At the same time, equipping two different devices will also increase the cost of medical consumables and the subsequent cleaning and maintenance workload. Utility Model Content

[0003] The utility model provides a laser resectoscope and a handle slide seat thereof. The handle slide seat of the utility model can be used for connecting electrodes and optical fibers, thereby realizing the integration of multiple treatment operations and improving the operation efficiency.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A handle slide for a laser resectoscope comprises a handle slide, the handle slide comprises a fixed handle, a movable handle, a positioning tube and a slide body, a connecting hole is passed through the slide body, an optical fiber tube is arranged at the right end of the connecting hole, and a fixing component is arranged on the slide body.

[0006] Furthermore, a sleeve is fixed on the positioning tube, and the axis of the sleeve coincides with the axis of the connecting hole. The sleeve can be provided to increase the stability and safety of the electrode or optical fiber and prevent the electrode from accidentally falling off or being damaged.

[0007] Furthermore, a first metal sleeve and a second metal sleeve are provided in the connecting hole, a cutting electrode terminal electrically connected to the first metal sleeve is provided on the sliding seat body, and a return electrode terminal electrically connected to the second metal sleeve is provided on the positioning tube.

[0008] A laser resectoscope comprises an outer sheath, an inner sheath, an endoscope, an electrode, a laser assembly and a handle slide. The laser assembly comprises an optical fiber guide tube and a laser optical fiber. The optical fiber is fixed in a connecting hole through a fixing assembly. The electrode comprises a double-core wire.

[0009] Furthermore, it also includes a water inlet and a water outlet, and the water inlet and the water outlet are both arranged on the outer sheath, or the water outlet is arranged on the outer sheath, the water inlet is arranged on the inner sheath, or the water inlet and the water outlet are both arranged on the inner sheath. A detachable negative pressure control valve is arranged on the water outlet, and a guide surface is arranged on the water inlet side of the water inlet. A detachable negative pressure control valve is arranged on the water outlet, and the negative pressure of the water outlet can be adjusted as needed to ensure the stability and safety of the water flow. The inner diameter of the water inlet side of the water outlet is increased to facilitate the discharge of gravel produced by the operation into the water outlet. The direction of the arrow in the figure is the direction of water flow.

[0010] Beneficial effects of the utility model:

[0011] The handle slide of the utility model can be used for connecting electrodes and optical fibers, so that electrode removal and laser removal can share the same handle slide. In this way, the integration of multiple treatment operations can be achieved, and the efficiency of surgery can be improved. Since electrode removal and laser removal share the same handle slide, the number and cost of equipment can be reduced. Doctors can complete multiple treatment operations on one device, which reduces the switching and adjustment of equipment during surgery and improves the accuracy and safety of surgery. It also has the advantages of versatility and easy switching, which can improve surgical efficiency and accuracy and reduce equipment cost and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the right side of the handle slide;

[0014] Figure 2 It is a schematic diagram of the left three-dimensional structure of the handle slide;

[0015] Figure 3 is a schematic diagram of the structure of the electrode;

[0016] Figure 4 is a schematic diagram of the structure of the optical fiber guide tube;

[0017] Figure 5 It is a schematic diagram of the structure of the inner sheath;

[0018] Figure 6 is a schematic diagram of the structure of an endoscope;

[0019] Figure 7 is a schematic diagram of the structure of the outer sheath;

[0020] Figure 8 Schematic diagram of the guide surface structure of the water outlet;

[0021] Fig. 9 It is a structural schematic diagram of the electrical connection of the slide body.

[0022] Sliding seat body 1, electrode 2, connecting hole 3, optical fiber tube 4, optical fiber guide tube 5, fixing assembly 6, inner sheath 7, outer sheath 8, endoscope 11, fixed handle 12, movable handle 13, guide sleeve 15, water inlet 16, water outlet 17, negative pressure control valve 18, guide surface 22, sleeve 23, positioning tube 24, loop electrode terminal 25, cutting electrode terminal 26. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] The terms "left" and "right" in this application are relative to Figure 1 Position shown.

[0025] Example 1

[0026] like Figure 1-2 As shown, a handle slide of a laser resectoscope comprises a fixed handle 12, a movable handle 13 and a slide body 1. A connecting hole 3 is passed through the slide body 1. An optical fiber tube 4 is arranged at the right end of the connecting hole 3. A fixing component 6 is arranged on the slide body 1.

[0027] The movable handle 13 is used to push the slide body 1 to move along the positioning tube 24. The fixing assembly 6 can be a locking screw, a push-type elastic lock, etc. The fixing assembly 6 is a conventional structure and is used on the handle slide of the existing laser resectoscope. Figure 2 As shown, the fixing assembly 6 is installed on the slide body 1 at the connecting hole 3 .

[0028] A sleeve 23 is fixed on the positioning tube 24, and the axis of the sleeve 23 coincides with the axis of the connecting hole 3. By providing the sleeve 23, the stability and safety of the electrode 2 or the optical fiber guide tube 5 can be increased to prevent accidental falling off or damage. In addition, the sleeve 23 can reduce the number of connectors on the electrode 2 or the optical fiber guide tube 5, simplifying the assembly process. When the fixing component 6 is a push-type elastic locking piece, the optical fiber guide tube 5 passes through the optical fiber tube 4 and the connecting hole 3, and enters the sleeve 23, and then the optical fiber guide tube 5 is fixed by pressing the push-type elastic locking piece. The optical fiber tube 4 is a hollow circular tube, one end of which is a connecting end fixed in the connecting hole 3 by the fixing component 6.

[0029] like Fig. 9 As shown, a first metal sleeve and a second metal sleeve are provided in the connection hole 3, a cutting electrode terminal 26 electrically connected to the first metal sleeve is provided on the slide body 1, and a return electrode terminal 25 electrically connected to the second metal sleeve is provided on the positioning tube 24. The cutting electrode terminal 26 and the return electrode terminal 25 are respectively connected to the host through wires. The slide body 1 is made of insulating material.

[0030] The electrode 2 is provided with a guide sleeve 15, which is a semicircular elastic clamp; the rod of the electrode 2 is coated with an insulating layer. The insulating layer can prevent the current from being conducted to other parts, thereby improving the safety of the operation and the stability of the electrode 2. The guide sleeve 15 can provide better guidance and play a certain role in limiting the working end of the electrode 2.

[0031] Example 2

[0032] like Figure 1-9 As shown, a laser resectoscope comprises an inner sheath 7, an endoscope 11, an electrode 2, a laser assembly and the handle slide seat described in Example 1, the laser assembly comprises an optical fiber guide tube 5 and a laser optical fiber, the optical fiber guide tube 5 is fixed in the connecting hole 3 by a fixing assembly 6, and the electrode 2 comprises a double-core wire. The optical fiber 5 sequentially passes through the optical fiber tube 4 and the connecting hole 3 and enters the optical fiber guide tube 5 in the sleeve 23.

[0033] The handle slide comprises a fixed handle 12, a movable handle 13 and a slide body 1. The handle slide is fitted with an endoscope 11 via a positioning tube 24. The endoscope 11, the fixed handle 12, the movable handle 13 and the laser optical fiber are all existing conventional structures.

[0034] The method of using the laser resectoscope is as follows: when using the laser mirror function, the endoscope 11 is inserted into the handle slide, the optical fiber guide tube 5 is connected to the slide body 1 through the sleeve 23 and the connecting hole 3, and the optical fiber guide tube 5 is fixed in the connecting hole 3 through the fixing component 6; the laser optical fiber is inserted into the optical fiber tube 4, the connecting hole 3, and the optical fiber guide tube 5 in sequence, and finally the endoscope 11 with the optical fiber 5 is installed in the inner sheath 7, and the slide body 1 and the optical fiber guide tube 5 are pushed to move by the movable handle 13.

[0035] When using the resectoscope function, the endoscope 11 is inserted into the handle slide. When fixing the electrode 2, the connecting end of the electrode 2 is first inserted into the sleeve 23, and then the guide sleeve 15 is slidably sleeved on the endoscope 11. The double-core wire of the connecting end of the electrode 2 is inserted into the connecting hole 3. The electrode 2 includes a cutting electrode and a loop electrode of the double-core wire. The cutting electrode and the loop electrode are separated by a ceramic insulating tube to ensure that the current flows only between the two electrodes. The first metal sleeve and the second metal sleeve corresponding to the cutting electrode and the loop electrode are provided in the connecting hole 3. The first metal sleeve is electrically connected to the cutting electrode terminal 26, and the second metal sleeve is electrically connected to the loop electrode terminal 25. The electrode 2 is connected to the host through the cutting electrode terminal 26 and the loop electrode terminal 25. The electrical connection of the electrode 2 is a prior art.

[0036] The outer sheath 8 also includes a water inlet 16 and a water outlet 17, both of which are arranged on the outer sheath 8. Figure 8 As shown, either the water outlet 17 is arranged on the outer sheath 8, and the water inlet 16 is arranged on the inner sheath 7 of the laser resectoscope, or both the water inlet 16 and the water outlet 17 are arranged on the inner sheath 7. A detachable negative pressure control valve 18 is screwed to the water outlet side of the water outlet 17. The outer sheath 8 and the inner sheath 7 can provide double protection for the laser resectoscope and reduce the risk of damage to the laser resectoscope. A detachable negative pressure control valve 18 is provided, and the negative pressure of the water outlet 17 can be adjusted as needed to ensure the stability and safety of the water flow. Figure 8 As shown, a guide surface 22 is provided on the water inlet side of the water outlet 17, and the guide surface 22 is inclined outward by 1-2 mm, so that the inner diameter of the water inlet side of the water outlet 17 is increased. The arrow direction in the figure is the water flow direction. When transurethral prostatectomy is required, a resectoscope is used for conventional surgical operations. When laser lithotripsy of intrabladder stones is required, the water flow direction is reversed, and the water flows in from the original water outlet 17, which can realize intelligent pressure control, and the original water inlet 16 is discharged and sucked by negative pressure, so that the gravel produced by the operation can enter the original water inlet 16 for discharge.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handle slide for a laser resectoscope, the handle slide comprising a fixed handle (12), a movable handle (13), a positioning tube (24) and a slide body (1), characterized in that: A connecting hole (3) is formed through the slide body (1), an optical fiber tube (4) is arranged at the right end of the connecting hole (3), a fixing assembly (6) is arranged on the slide body (1), a first metal sleeve and a second metal sleeve are arranged in the connecting hole (3), a cutting electrode terminal (26) electrically connected to the first metal sleeve is arranged on the slide body (1), a return electrode terminal (25) electrically connected to the second metal sleeve is arranged on the positioning tube (24), a sleeve (23) is fixed on the positioning tube (24), and the axis of the sleeve (23) coincides with the axis of the connecting hole (3).

2. A laser resectoscope, characterized in that: The laser resectoscope comprises an outer sheath (8), an inner sheath (7), an endoscope (11), an electrode (2), a laser assembly and the handle slide seat as claimed in claim 1, wherein the laser assembly comprises an optical fiber guide tube (5) and a laser optical fiber, the optical fiber guide tube (5) is fixed in the connecting hole (3) by a fixing assembly (6), and the electrode (2) comprises a double-core wire.

3. A laser resectoscope according to claim 2, characterized in that: The invention also comprises a water inlet (16) and a water outlet (17), wherein the water inlet (16) and the water outlet (17) are both arranged on the outer sheath (8), or the water outlet (17) is arranged on the outer sheath (8) and the water inlet (16) is arranged on the inner sheath (7), or the water inlet (16) and the water outlet (17) are both arranged on the inner sheath (7), a detachable negative pressure control valve (18) is arranged on the water outlet (17), and a guide surface (22) is arranged on the water inlet side of the water inlet (16).

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