Hysteroscope cold knife cutter

Abstract

The utility model belongs to the technical field of medical instruments, and relates to a hysteroscope cold knife cutter which comprises a holding frame, one end of the holding frame is rotationally connected with a driving frame, the other end of the holding frame is provided with a movable sleeve, the end, close to the holding frame, of the movable sleeve extends to the inner side of the holding frame, and the movable sleeve is connected with the holding frame in a sliding mode. A moving assembly is arranged at the position, corresponding to the moving sleeve, of the inner side of the holding frame, a hollow rotating cylinder is arranged on the inner side of the moving sleeve, and the hollow rotating cylinder is rotationally connected with the moving sleeve. Through the matching structural design of the movable sleeve, the hollow rotating cylinder, the cold knife scissors, the connecting rope and the movable assembly, a needle point electrode part can be changed into a sharp knife head, electrification is not needed, and the knife head is used for sharp cutting and adhesion separation, so that electric heating damage is reduced as much as possible, meanwhile, the movable sleeve can be moved, and operation is convenient. Furthermore, the cold knife scissors are stored on the inner side of the movable sleeve, and the damage to the inner wall of the uterine cavity in the moving process of the cold knife scissors is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and relates to a hysteroscope cold knife cutter. BACKGROUND

[0002] Hysteroscopic metroplasty is a minimally invasive surgery for treating intrauterine adhesion, aiming to restore the normal shape and function of the uterus, and hysteroscopic metroplasty uses hysteroscopic technology to separate the adhesion tissue in the uterine cavity under direct vision, thereby restoring the normal anatomical structure of the uterus.

[0003] The existing hysteroscope needle electrode may damage the normal tissue around the operation area during the electric cutting operation, resulting in thermal injury or electric burn, and even causing tissue necrosis in severe cases. UTILITY MODEL CONTENTS

[0004] The utility model wants to solve the technical problem that the existing hysteroscope needle electrode may damage the normal tissue around the operation area during the electric cutting operation, resulting in thermal injury or electric burn, and even causing tissue necrosis in severe cases.

[0005] The utility model discloses a hysteroscope cold knife cutter, including the holding frame, one end of the holding frame is rotatably connected with the drive frame, the other end of the holding frame is provided with the moving sleeve, the one end of the moving sleeve close to the holding frame extends to the inside of the holding frame, the moving sleeve is slidably connected with the holding frame, the position department of the inside of the holding frame and the moving sleeve correspond is provided with the moving assembly, the inside of the moving sleeve is provided with the hollow rotating cylinder, the hollow rotating cylinder is rotatably connected with the moving sleeve, the one end of the hollow rotating cylinder away from the holding frame is provided with the cold knife scissors, the other end of the hollow rotating cylinder extends to the inside of the holding frame, the hollow rotating cylinder is rotatably connected with the holding frame, the position department of the inside of the holding frame and the hollow rotating cylinder correspond is provided with the rotating assembly, is adjusted to the angle of cold knife scissors, the one end of the cold knife scissors close to the hollow rotating cylinder is fixed with the connecting rope, the one end of the connecting rope away from the cold knife scissors extends to the top outside of the moving sleeve, the top of the drive frame is fixed with the connecting rod, the connecting rope is fixedly connected with the connecting rod.

[0006] The moving assembly comprises an internal screw rod fixed at one end of the moving sleeve inside the holding frame, a driving screw rod screw-connected at the end of the internal screw rod away from the moving sleeve, the driving screw rod extending to the outside of one end of the holding frame, and a second knob fixed at the end of the driving screw rod outside the holding frame.

[0007] A plurality of insertion grooves are uniformly arranged at the end of the driving screw rod outside the second knob, a plurality of insertion balls are uniformly arranged at positions corresponding to the insertion grooves inside the holding frame, the insertion balls are insertedly connected with the driving screw rod through the insertion grooves, an insertion spring is fixed at the side of the insertion ball away from the driving screw rod, and the end of the insertion spring away from the insertion ball is fixedly connected with the holding frame.

[0008] Anti-rotation sliding blocks are fixed at both sides of the end of the internal screw rod close to the driving screw rod, and the anti-rotation sliding blocks are slidingly connected with the holding frame.

[0009] The rotating assembly comprises a transmission worm wheel arranged at the position of the hollow rotating cylinder inside the holding frame, the transmission worm wheel is fixedly connected with the hollow rotating cylinder, a driving worm is arranged at the position corresponding to the transmission worm wheel inside the holding frame, the driving worm is rotationally connected with the holding frame, the driving worm is meshingly connected with the transmission worm wheel, the top end of the driving worm extends to the outside of the top end of the holding frame, and a first rotating knob is fixed at the end of the driving worm outside the top end of the holding frame.

[0010] A limiting sliding block is arranged at the end of the hollow rotating cylinder outside the holding frame, the limiting sliding block is slidingly connected with the hollow rotating cylinder, and the limiting sliding block is fixedly connected with the holding frame.

[0011] The inside of the hollow rotating cylinder is provided with a conversion plate, the conversion plate is slidingly connected with the hollow rotating cylinder, a rotating connecting block is rotationally connected at the side of the conversion plate away from the cold knife scissors, and the connecting rope is connected with the hollow rotating cylinder through the rotating connecting block.

[0012] Compared with the prior art, the utility model has the advantages that: through the cooperation of the moving sleeve, the hollow rotating cylinder, the cold knife scissors, the connecting rope and the moving assembly, the needle tip electrode part can be changed into a sharp cutter head, without the need of electrification, for sharp cutting and separating adhesion, so as to minimize the electric heating damage, and the moving sleeve can be moved, so that the cold knife scissors can be stored inside the moving sleeve, avoiding the damage to the intrauterine wall in the moving process of the cold knife scissors.

[0013] Through the structural design of the rotating assembly, the hollow rotating cylinder and the cold knife scissors can be rotated simultaneously, so that the angle of the cold knife scissors can be adjusted according to the position of the lesion on the uterine cavity wall, and then the affected part is conveniently and better operated, and the practicability of the device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram of the utility model.

[0015] Figure 2 It is the structure schematic diagram of the moving assembly in the utility model.

[0016] Figure 3 It is the schematic diagram of the rotating assembly in the utility model.

[0017] Figure 4 It is the structure schematic diagram of the rotating connecting block in the utility model. Figure 3 It is the enlarged view of A in the utility model.

[0018] Figure 5 It is the enlarged view of B in the utility model. Figure 3 It is the enlarged view of B in the utility model.

[0019] Figure 6 It is the structure schematic diagram of the rotating connecting block in the utility model.

[0020] In the drawing: 1, holding frame; 2, driving frame; 3, moving sleeve; 4, hollow rotating cylinder; 5, cold knife scissors; 6, connecting rope; 7, connecting rod; 8, transmission worm; 9, driving worm; 10, first rotating knob; 11, second knob; 12, built-in threaded rod; 13, driving threaded rod; 14, anti-rotation sliding block; 15, plug-in slot; 16, plug-in ball; 17, plug-in spring; 18, limit sliding block; 19, adapter plate; 20, rotating connecting block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0022] It should be noted that the examples in the utility model and the features and technical solutions in the examples can be combined with each other without conflict.

[0023] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] Example 1

[0025] As Figures 1-6 shown, including holding frame 1, one end of holding frame 1 is rotatably connected with driving frame 2, the other end of holding frame 1 is provided with moving sleeve 3, moving sleeve 3 extends to the inside of holding frame 1 near one end of holding frame 1, moving sleeve 3 is slidingly connected with holding frame 1, in order to facilitate the movement of moving sleeve 3, the inside of holding frame 1 and corresponding to the position of moving sleeve 3 is provided with moving assembly, the inside of moving sleeve 3 is provided with hollow rotating cylinder 4, hollow rotating cylinder 4 is rotatably connected with moving sleeve 3, in order to facilitate sharp cutting of the affected area, the end of hollow rotating cylinder 4 away from holding frame 1 is provided with cold knife scissors 5, the other end of hollow rotating cylinder 4 extends to the inside of holding frame 1, hollow rotating cylinder 4 is rotatably connected with holding frame 1, in order to facilitate the rotation of hollow rotating cylinder 4, the inside of holding frame 1 and corresponding to the position of hollow rotating cylinder 4 is provided with rotating assembly, for adjusting the angle of cold knife scissors 5, in order to facilitate the shearing of cold knife scissors 5 when holding driving frame 2, the end of cold knife scissors 5 close to hollow rotating cylinder 4 is fixed with connecting rope 6, the end of connecting rope 6 away from cold knife scissors 5 extends to the outside of the top end of moving sleeve 3, the top end of driving frame 2 is fixed with connecting rod 7, connecting rope 6 is fixedly connected with connecting rod 7; in order to prevent the connecting rope 6 inside the hollow rotating cylinder 4 from rotating when the hollow rotating cylinder 4 rotates, the inside of hollow rotating cylinder 4 is provided with adapter plate 19, adapter plate 19 is slidingly connected with hollow rotating cylinder 4, rotating connection block 20 is rotatably connected with the side of adapter plate 19 away from cold knife scissors 5, connecting rope 6 is connected with hollow rotating cylinder 4 through rotating connection block 20, connecting rope 6 is divided into two ends, one end of connecting rope 6 is fixedly connected with cold knife scissors 5 and adapter plate 19 respectively, the other end of connecting rope 6 is rotatably connected with adapter plate 19 through connecting block 20, the other end is fixedly connected with connecting rod 7.

[0026] In use, first, the moving assembly drives the moving sleeve 3 to move away from the holding frame 1, when the cold knife scissors 5 are located inside the moving sleeve 3, the movement of the moving sleeve 3 is stopped, then the device is inserted into the patient's uterine cavity through the hysteroscope, and then the moving sleeve 3 is moved towards the holding frame 1, so that the cold knife scissors 5 are located outside the moving sleeve 3, then the rotating assembly drives the hollow rotating cylinder 4 to rotate, so that the hollow rotating cylinder 4 drives the cold knife scissors 5 to rotate, and the cold knife scissors 5 are adjusted to the appropriate angle, then the holding frame 1 and the driving frame 2 are driven to rotate, and the moving sleeve 3 is rotated, and the cold knife scissors 5 are sheared through the connecting rod 7, the adapter plate 19 and the connecting rope 6, and the operation is completed. Through the cooperation of the moving sleeve 3, the hollow rotating cylinder 4, the cold knife scissors 5, the connecting rope 6 and the moving assembly, the needle tip electrode part can be changed into a sharp knife head, without power supply, which is used for sharp incision and separation of adhesion, so as to minimize the damage caused by electric heating, and the moving sleeve 3 can be moved, so that the cold knife scissors 5 are stored in the inside of the moving sleeve 3, avoiding damage to the uterine cavity wall during the movement of the cold knife scissors 5.

[0027] Embodiment 2

[0028] As Figures 2-4 shown, in order to facilitate the movement of the moving sleeve 3, the moving assembly includes an internal threaded rod 12 fixed at one end of the moving sleeve 3 inside the holding frame 1, in order to facilitate the movement of the internal threaded rod 12, the internal threaded rod 12 is threadedly connected with a driving threaded rod 13 at the other end of the internal threaded rod 12 away from the moving sleeve 3, the driving threaded rod 13 extends to the outside of one end of the holding frame 1, in order to facilitate the rotation of the driving threaded rod 13, the second knob 11 is fixed at one end of the driving threaded rod 13 outside the holding frame 1; in order to facilitate the rotation of the internal threaded rod 12, anti-rotation sliding blocks 14 are fixed on both sides of the internal threaded rod 12 close to the driving threaded rod 13, and the anti-rotation sliding blocks 14 are slidingly connected with the holding frame 1.

[0029] The driving threaded rod 13 is uniformly provided with a plurality of insertion grooves 15 at the other end of the driving threaded rod 13 away from the second knob 11, in order to facilitate the rotation of the driving threaded rod 13 through the insertion grooves 15, and improve the stability of the driving threaded rod 13, a plurality of insertion balls 16 are uniformly provided at positions corresponding to the insertion grooves 15 inside the holding frame 1, the insertion balls 16 are insertedly connected with the driving threaded rod 13 through the insertion grooves 15, in order to facilitate the rotation of the insertion balls 16, the insertion balls 16 are fixed with insertion springs 17 on the side away from the driving threaded rod 13, and the insertion springs 17 are fixedly connected with the holding frame 1 at the other end away from the insertion balls 16.

[0030] When it is needed to rotate the moving sleeve 3, first rotate the second knob 11, so that the second knob 11 drives the driving threaded rod 13 to rotate, when the driving threaded rod 13 rotates, the built-in threaded rod 12 connected with the driving threaded rod 13 through threads moves along the axial direction of the driving threaded rod 13, when the built-in threaded rod 12 moves, it drives the moving sleeve 3 fixed with the built-in threaded rod 12 to move simultaneously.

[0031] Embodiment 3

[0032] As shown in Figure 3 and Figure 5 In order to conveniently drive the hollow rotating cylinder 4 to rotate, the rotating assembly comprises a transmission worm 8, the transmission worm 8 is arranged at the position of the hollow rotating cylinder 4 inside the holding frame 1, the transmission worm 8 is fixedly connected with the hollow rotating cylinder 4, in order to conveniently drive the transmission worm 8 to rotate, the position corresponding to the transmission worm 8 inside the holding frame 1 is provided with a driving worm 9, the driving worm 9 is rotatably connected with the holding frame 1, the driving worm 9 is engagedly connected with the transmission worm 8, the top end of the driving worm 9 extends to the outside of the top end of the holding frame 1, in order to conveniently rotate the driving worm 9, the first rotating knob 10 is fixedly arranged at one end of the driving worm 9 outside the top end of the holding frame 1.

[0033] In order to axially limit the hollow rotating cylinder 4 and avoid transverse movement of the hollow rotating cylinder 4, the end outside the hollow rotating cylinder 4 inside the holding frame 1 is provided with a limiting sliding block 18, the limiting sliding block 18 is slidably connected with the hollow rotating cylinder 4, and the limiting sliding block 18 is fixedly connected with the holding frame 1.

[0034] When it is needed to adjust the angle of the cold knife shears 5, first rotate the first rotating knob 10, so that the first rotating knob 10 drives the driving worm 9 to rotate, when the driving worm 9 rotates, the hollow rotating cylinder 4 fixed with the transmission worm 8 is driven to rotate through the transmission worm 8 engagedly connected with the driving worm 9, so that the cold knife shears 5 are driven to rotate simultaneously.

[0035] In the utility model, the description of the structure direction and relative position relation, such as the description of before and after, left and right, up and down, does not constitute the limitation to the utility model, and is only convenient for description.

Claims

1. A hysteroscopic cold-knife morcellator, characterized by: The utility model provides a cold knife shears, including the holding frame (1), one end of holding frame (1) is rotatably connected with drive frame (2), the other end of holding frame (1) is provided with mobile sleeve (3), mobile sleeve (3) extends to the inside of holding frame (1) near one end of holding frame (1), mobile sleeve (3) is slidably connected with holding frame (1), and the position of the inside of holding frame (1) and mobile sleeve (3) corresponds is provided with mobile subassembly, the inside of mobile sleeve (3) is provided with hollow rotating cylinder (4), hollow rotating cylinder (4) is rotatably connected with mobile sleeve (3), and the one end of hollow rotating cylinder (4) away from holding frame (1) is provided with cold knife shears (5), and the other end of hollow rotating cylinder (4) extends to the inside of holding frame (1), and hollow rotating cylinder (4) is rotatably connected with holding frame (1), and the position of the inside of holding frame (1) and hollow rotating cylinder (4) corresponds is provided with rotating subassembly for adjusting the angle of cold knife shears (5), and the one end of cold knife shears (5) near hollow rotating cylinder (4) is fixed with connecting rope (6), and the one end of connecting rope (6) away from cold knife shears (5) extends to the top outside of mobile sleeve (3), and the top of drive frame (2) is fixed with connecting rod (7), and connecting rope (6) is fixedly connected with connecting rod (7).

2. The hysteroscopic cold-knife cutter according to claim 1, wherein: The mobile subassembly includes the built-in threaded rod (12), the built-in threaded rod (12) is fixed at the one end position of mobile sleeve (3) on the inside of holding frame (1), the one end inside of built-in threaded rod (12) away from mobile sleeve (3) is threadedly connected with drive threaded rod (13), the one end of drive threaded rod (13) away from built-in threaded rod (12) extends to the outside of one end of holding frame (1), and the one end of drive threaded rod (13) on the outside of holding frame (1) is fixed with second knob (11).

3. The hysteroscopic cold-knife cutter according to claim 2, wherein: The one end outside of drive threaded rod (13) near second knob (11) is uniformly provided with a plurality of insertion grooves (15), a plurality of insertion balls (16) are uniformly arranged at the position of the inside of holding frame (1) and corresponding to insertion groove (15), the insertion ball (16) is insertedly connected with drive threaded rod (13) through insertion groove (15), the one side of insertion ball (16) away from drive threaded rod (13) is fixed with insertion spring (17), and the one end of insertion spring (17) away from insertion ball (16) is fixedly connected with holding frame (1).

4. The hysteroscopic cold-knife cutter according to claim 2, wherein: The both sides of the one end of built-in threaded rod (12) near drive threaded rod (13) are fixed with anti-rotation sliding block (14), and the anti-rotation sliding block (14) is slidably connected with holding frame (1).

5. The hysteroscopic cold-knife cutter according to claim 1, wherein: The rotating assembly comprises a transmission worm wheel (8), which is arranged at the position where the hollow rotating cylinder (4) is located inside the holding frame (1), is fixedly connected with the hollow rotating cylinder (4), and is arranged at the position corresponding to the transmission worm wheel (8) inside the holding frame (1). A driving worm (9) is arranged at the position corresponding to the transmission worm wheel (8) inside the holding frame (1) and is rotatably connected with the holding frame (1). The driving worm (9) is meshingly connected with the transmission worm wheel (8). The top end of the driving worm (9) extends to the outside of the top end of the holding frame (1). The first rotating knob (10) is fixedly arranged at one end of the driving worm (9) outside the top end of the holding frame (1).

6. The hysteroscopic cold-knife cutter according to claim 1, wherein: The hollow rotating cylinder (4) is arranged outside one end of the holding frame (1) and is provided with a limiting sliding block (18), which is slidably connected with the hollow rotating cylinder (4) and is fixedly connected with the holding frame (1).

7. The hysteroscopic cold-knife cutter according to claim 1, wherein: The inside of the hollow rotating cylinder (4) is provided with an adapter plate (19), which is slidably connected with the hollow rotating cylinder (4). The adapter plate (19) is rotatably connected with a rotating connecting block (20) on the side away from the cold knife scissors (5). The connecting rope (6) is connected with the hollow rotating cylinder (4) through the rotating connecting block (20).

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