Small-caliber laser resectoscope suitable for various operations

Abstract

The utility model relates to the field of medical instruments, and discloses a small-caliber laser resectoscope suitable for various surgeries, which comprises a resectoscope main body and an outer sheath, an inner sheath is inserted in the outer sheath in a penetrating manner, a first handheld ring is mounted at the bottom of the resectoscope main body, a second handheld ring is mounted at the outer part of the inner sheath close to the front end, and the first handheld ring is connected with the second handheld ring. A positioning mechanism is installed on the front portion of the first handheld ring, a dismounting and mounting assembly is installed in the first handheld ring, the positioning mechanism comprises a positioning seat and a rotating rod, the positioning seat is installed on the front portion of the first handheld ring, the rotating rod is movably installed in the positioning seat, and an adjusting disc is fixedly installed at the bottom end of the rotating rod; the rotating rod is sleeved with a sliding block, and a guide rod is fixedly installed at the top of the sliding block. The inner sheath is prevented from stretching and sliding due to mistaken touch, and the lens and the electrode are prevented from being scratched and damaged; meanwhile, the positioning seat is convenient to mount and dismount, and is suitable for being mounted on resectoscope main bodies for different operations.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, concretely to a small-caliber laser resectoscope suitable for various operations. BACKGROUND

[0002] The laser resectoscope is mainly used in urological operations, especially in operations such as prostate hyperplasia and bladder tumor resection, and combines laser technology and resection technology to cut tissues through the energy generated by laser.

[0003] A laser resectoscope is provided in Chinese patent with publication number CN219594789U, which comprises a handheld piece, elastic wire, linear drive mechanism and inner sheath, one end of the inner sheath is installed on the handheld piece, a laser optical fiber is arranged in the inner sheath, the elastic wire is arranged in the inner sheath, one end of the elastic wire away from the handheld piece is provided with a shovel-shaped prying structure made of memory metal material, the linear drive mechanism is arranged on the side of the handheld piece away from the inner sheath, and the linear drive mechanism is connected with one end of the elastic wire away from the prying structure, for adjusting the length of the elastic wire extending out of the inner sheath.

[0004] The above-mentioned laser resectoscope has the advantages of accurate cutting, gasification and ablation of tissues by the laser optical fiber, but after the operation is completed or when it is temporarily held and placed, the inner sheath is easily automatically extended and retracted due to accidental touch, which causes the lens and electrode to be scratched and damaged, and the resectoscope body needs to be replaced when different operations are performed on different patients, which is not convenient for the quick installation and disassembly of the positioning seat. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a small-caliber laser resectoscope suitable for various operations to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A small-caliber laser resectoscope suitable for various operations comprises a resectoscope body and an outer sheath, an inner sheath is inserted through the inside of the outer sheath, a first handheld ring is installed at the bottom of the resectoscope body, a second handheld ring is installed at the front end of the outside of the inner sheath, a positioning mechanism is installed at the front part of the first handheld ring, a disassembly and assembly component is installed in the inside of the first handheld ring, the positioning mechanism comprises a positioning seat and a rotating rod, the positioning seat is installed at the front part of the first handheld ring, the rotating rod is movably installed in the inside of the positioning seat, an adjusting disc is fixedly installed at the bottom end of the rotating rod, a sliding block is sleeved on the outside of the rotating rod, a guide rod is fixedly installed at the top of the sliding block, a positioning ring is fixedly installed at the top end of the guide rod, a spring is sleeved on the bottom of the sliding block and outside of the rotating rod, and a threaded ring is arranged on the middle segment of the periphery of the rotating rod.

[0008] Preferably, the sliding block is sleeved on the outer part of the rotating rod and is arranged to slide up and down, and the rotating rod is arranged to rotate in the inner part of the positioning base.

[0009] Preferably, the positioning ring is arranged in a semicircular ring in cross section and is arranged to match each other at the front end outside the inner sheath.

[0010] Preferably, the upper and lower ends of the spring are in contact with the inner wall of the positioning base and the sliding block respectively, and the threaded ring on the outer periphery of the rotating rod is arranged in threaded connection with the sliding block.

[0011] Preferably, the dismounting assembly comprises two hangers which are fixedly arranged on one side of the positioning base, a hanging groove is arranged between the hanger and the rear part of the positioning base, a screw rod is movably arranged through the rear part of the hanger, and a knob is fixedly arranged at the rear end of the screw rod.

[0012] Preferably, the top view of the hanger is arranged in an L shape, and the front end of the hanger is fixedly arranged with the positioning base.

[0013] Preferably, the hanging groove is used for inserting the front part of the first hand ring, and the screw rod is arranged in threaded connection through the rear part of the hanger.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1) The small-caliber laser electric cutting mirror, through the setting positioning mechanism, the sliding block is automatically slid upward under the action of the spring, the inner sheath can be fixed through the clamping of the positioning ring and the inner sheath, the inner sheath is prevented from sliding up and down due to accidental touch, the lens and the electrode are prevented from being scratched and damaged, the positioning ring is separated from the sliding block through pressing the sliding block and rotating the rotating rod, the positioning ring is fixed, and the use of the cutting operation is convenient.

[0016] 2) The small-caliber laser electric cutting mirror, through the setting dismounting assembly, the hanger is hung on the first hand ring, the inner wall of the first hand ring is pressed and fixed through the screw rod, the installation and dismounting of the positioning base are facilitated, the positioning base is suitable for being installed on different electric cutting mirror bodies, and the electric cutting mirror body can be quickly replaced to be used for different operations. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of a small-caliber laser electric cutting mirror suitable for various operations in the utility model embodiment.

[0018] Figure 2 It is a structure schematic view of a positioning mechanism in the utility model embodiment.

[0019] Figure 3 It is an A enlarged view of the utility model embodiment. Figure 2

[0020] ​Figure 4 It is a structure schematic view of the disassembling and assembling component in the embodiment of the utility model.

[0021] In the drawing: 1, resectoscope main body; 2, outer sheath; 3, inner sheath; 4, first hand ring; 5, second hand ring; 6, positioning mechanism; 7, disassembling and assembling component; 8, positioning seat; 9, rotating rod; 10, adjusting disc; 11, sliding block; 12, guide rod; 13, positioning ring; 14, spring; 15, threaded ring; 16, hanging rack; 17, hanging groove; 18, screw rod; 19, knob. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Embodiment one

[0024] Combined with Figures 1-4 , a small-caliber laser resectoscope suitable for various operations, comprising a resectoscope main body 1 and an outer sheath 2, an inner sheath 3 is inserted through the inside of the outer sheath 2, a first hand ring 4 is installed at the bottom of the resectoscope main body 1, a second hand ring 5 is installed at the front end of the outside of the inner sheath 3, a positioning mechanism 6 is installed at the front part of the first hand ring 4, and a disassembling and assembling component 7 is installed in the inside of the first hand ring 4.

[0025] Referring to Figure 2 and Figure 3 , it is further obtained that the positioning mechanism 6 comprises a positioning seat 8 and a rotating rod 9, the positioning seat 8 is installed at the front part of the first hand ring 4, the rotating rod 9 is movably installed in the inside of the positioning seat 8, an adjusting disc 10 is fixedly installed at the bottom end of the rotating rod 9, a sliding block 11 is sleeved on the outside of the rotating rod 9, a guide rod 12 is fixedly installed at the top of the sliding block 11, a positioning ring 13 is fixedly installed at the top end of the guide rod 12, a spring 14 is sleeved on the outside of the rotating rod 9 and located at the bottom of the sliding block 11, and a threaded ring 15 is arranged on the middle segment of the periphery of the rotating rod 9.

[0026] The sliding block 11 is arranged to slide up and down on the outside of the rotating rod 9, and the rotating rod 9 is movably arranged to rotate in the inside of the positioning seat 8.

[0027] The positioning ring 13 is arranged in a semicircular ring in cross section, and the positioning ring 13 is arranged to match each other at the front end of the outside of the inner sheath 3.

[0028] The upper and lower ends of the spring 14 are respectively in contact with the inner wall of the positioning seat 8 and the sliding block 11, and the threaded ring 15 on the periphery of the rotating rod 9 is arranged in threaded connection with the sliding block 11.

[0029] Specifically, the slider 11 is upwardly slid by the spring 14, the positioning ring 13 is in contact with the inner sheath 3 and is clamped outside, which can prevent the second hand ring 5 from being accidentally touched to make the inner sheath 3 and the electrode extend, reduce the damage to the electrode, the positioning ring 13 is separated from the inner sheath 3 by pressing the slider 11, the slider 11 is connected with the threaded ring 15 by rotating the rotating rod 9, and then the slider 11 is fixed, which is convenient for the operation of the inner sheath 3.

[0030] Embodiment two

[0031] Referring to Figure 4 On the basis of the embodiment one, it is further obtained that the disassembling assembly 7 comprises two hanging racks 16, the two hanging racks 16 are fixedly installed on one side of the positioning seat 8, a hanging groove 17 is arranged between the hanging rack 16 and the rear part of the positioning seat 8, a screw rod 18 is movably installed through the rear part of the hanging rack 16, and a knob 19 is fixedly installed at the rear end of the screw rod 18.

[0032] The top view of the hanging rack 16 is in the shape of "L", and the front end of the hanging rack 16 is fixedly installed with the positioning seat 8.

[0033] The hanging groove 17 is used for inserting the front part of the first hand ring 4, and the screw rod 18 is threadedly connected through the rear part of the hanging rack 16.

[0034] Specifically, the positioning seat 8 is hung on the first hand ring 4 through the hanging rack 16, the first hand ring 4 is pressed and fixed by the screw rod 18 under the thread action, which is convenient for the installation and disassembly of the positioning seat 8 and convenient for installation on different resectoscopes.

[0035] In the actual operation process, the first hand ring 4 is used for holding the resectoscope main body 1, the inner sheath 3 is extended from the rear end inside the outer sheath 2 by pressing and pushing the second hand ring 5, and then the lens and the electrode are extended, and the operation and resection surgery are performed;

[0036] When the surgery is completed, the second hand ring 5 is easily accidentally touched, the inner sheath 3 drives the lens and the electrode to extend, the lens and the electrode are easily scratched and damaged, in the positioning process, the slider 11 drives the guide rod 12 and the positioning ring 13 to automatically slide upward under the action of the spring 14, the positioning ring 13 is in contact with the inner sheath 3 and is clamped, and then the second hand ring 5 is pressed and prevented from being accidentally touched to make the inner sheath 3 slide and extend, when used again, the positioning ring 13 is separated from the inner sheath 3 by pressing the slider 11, the slider 11 is slid to a specified position, the rotating adjusting disc 10 is rotated, the rotating rod 9 is rotated, the threaded ring 15 is threadedly connected with the slider 11, and then the slider 11 is fixed;

[0037] When different patients or different operations are performed, different resectoscopes need to be used, when disassembling, the positioning seat 8 is clamped on the first hand ring 4 through the hanging bracket 16, the first hand ring 4 is clamped into the hanging groove 17, the knob 19 is rotated, the screw rod 18 is rotated and slides under the action of the screw thread to press the inner wall of the first hand ring 4 tightly to be fixed, the installation and dismounting of the positioning seat 8 are facilitated, and the positioning seat 8 is suitable for being installed on different resectoscope main bodies 1.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A small-caliber laser resectoscope suitable for various surgeries, comprising a resectoscope body (1) and an outer sheath (2), an inner sheath (3) passing through the interior of the outer sheath (2), a first hand-held ring (4) being installed at the bottom of the resectoscope body (1), and a second hand-held ring (5) being installed outside the inner sheath (3) near the front end, characterized in that: The front part of the first hand ring (4) is provided with a positioning mechanism (6), and the inside of the first hand ring (4) is provided with a dismounting assembly (7); The positioning mechanism (6) comprises a positioning seat (8) and a rotating rod (9), the positioning seat (8) is installed at the front part of the first hand ring (4), the rotating rod (9) is movably installed inside the positioning seat (8), the bottom end of the rotating rod (9) is fixedly provided with an adjusting disc (10), the outside of the rotating rod (9) is sleeved with a sliding block (11), the top of the sliding block (11) is fixedly provided with a guide rod (12), the top end of the guide rod (12) is fixedly provided with a positioning ring (13), the outside of the rotating rod (9) and at the bottom of the sliding block (11) is sleeved with a spring (14), and the middle part of the periphery of the rotating rod (9) is provided with a threaded ring (15).

2. A small diameter laser resectoscope according to claim 1, characterized in that: The sliding block (11) is sleeved on the outside of the rotating rod (9) and is arranged in an up-down sliding mode, and the rotating rod (9) is movably arranged in the inside of the positioning seat (8) and is arranged in a rotating mode.

3. A small diameter laser resectoscope for use in a variety of surgical procedures according to claim 1, characterized in that: The positioning ring (13) is arranged in a semicircular ring mode in cross section, and the positioning ring (13) is arranged at the front end of the outside of the inner sheath (3) and is matched with each other.

4. A small diameter laser resectoscope according to claim 1, characterized in that: The upper and lower ends of the spring (14) are in contact with the inner wall of the positioning seat (8) and the sliding block (11) respectively, and the threaded ring (15) on the periphery of the rotating rod (9) is in threaded connection with the sliding block (11).

5. A small diameter laser resectoscope according to claim 1, characterized in that: The dismounting assembly (7) comprises two hangers (16), the two hangers (16) are fixedly installed on one side of the positioning seat (8), a hanging groove (17) is arranged between the hanger (16) and the rear part of the positioning seat (8), a screw rod (18) is movably installed through the rear part of the hanger (16), and a knob (19) is fixedly installed at the rear end of the screw rod (18).

6. A small diameter laser resectoscope according to claim 5, characterized in that: The top view of the hanger (16) is arranged in an "L" shape, and the front end of the hanger (16) is fixedly installed with the positioning seat (8).

7. A small diameter laser resectoscope according to claim 5, characterized in that: The hanging groove (17) is used for inserting the front part of the first hand ring (4), and the screw rod (18) is threadedly connected through the rear part of the hanger (16).

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