Manual planer suitable for endoscope

Abstract

The utility model relates to a manual planer suitable for an endoscope, which comprises a shell, the front end of the shell is connected with an outer tube assembly through an adjusting knob, an inner tube assembly is arranged in the outer tube assembly, the inner tube assembly is provided with a rotation driving assembly, a rotation guiding mechanism is arranged in the shell, and the rotation driving assembly is in movable contact with the rotation guiding mechanism. An elastic driving assembly is arranged at the position, located on the rear side of the rotary guiding mechanism, of the shell, a collector is arranged on the rear side of the elastic driving assembly, the tail end of the inner pipe assembly is connected with the collector, and the elastic driving assembly is further movably connected with a pressing trigger. Therefore, a motor and the like do not need to be adopted as a power source, operation interference caused by vibration of the motor is avoided, and accurate cutting can be achieved. Cold knife operation can be achieved, tissue separation is achieved through rotary excision, additional cutting edges do not need to be arranged, the front side space of the outer tube assembly is not occupied, other normal tissue cannot be cut, and the endometrium cutting device is particularly suitable for endometrium excision.

Description

Technical Field

[0001] The utility model relates to a planer, in particular to a manual planer suitable for an endoscope. Background Art

[0002] With the continuous advancement of medical technology, endoscopic planers are increasingly used in minimally invasive surgery. They not only improve surgical efficiency, but also reduce surgical risks and provide patients with a better treatment experience.

[0003] Currently, there are surviving surfacing devices for removing endometrial polyps, submucosal uterine myomas, and other tissues. During use, fluid is supplied to the uterus to expand it, and an outer tube and an inner tube are inserted into the uterus. A vacuum device draws air, drawing the tissue to be cut into the outer tube through a window in the outer tube. A drive device then reciprocates the inner tube, thereby removing the tissue. The removed tissue is then sucked out through the hollow lumen of the inner tube by the vacuum device until the procedure is complete.

[0004] However, existing planers are mostly driven by motors, which can vibrate during operation, hindering precise positioning and interfering with imaging, affecting image quality. Furthermore, the cutting tip has a small opening, which can easily clog the blade with tissue fragments during planing, resulting in an incomplete cut, which can affect surgical effectiveness and prolong surgery.

[0005] Furthermore, there is a lack of relevant filtering and collecting devices. If further analysis of the tissue is required, samples need to be collected separately, which is cumbersome and increases the risk of doctors coming into contact with contaminants again.

[0006] In view of the above-mentioned defects, the designer has actively carried out research and innovation in order to create a manual planer suitable for endoscopes to make it more valuable for industrial use. Utility Model Content

[0007] In order to solve the above technical problems, the purpose of the utility model is to provide a manual planer suitable for endoscopes.

[0008] The utility model discloses a manual planer suitable for an endoscope, comprising a shell, wherein: the front end of the shell is connected to an outer tube assembly via an adjustment knob, the outer tube assembly is provided with an inner tube assembly, the inner tube assembly is provided with a rotation drive assembly, a rotation guide mechanism is provided in the shell, the rotation drive assembly is in movably contact with the rotation guide mechanism, the shell is provided with an elastic drive assembly on the rear side of the rotation guide mechanism, a collector is provided on the rear side of the elastic drive assembly, the tail end of the inner tube assembly is connected to the collector, and the elastic drive assembly is also movably connected to a press trigger.

[0009] Furthermore, the above-mentioned manual planer suitable for endoscopes, wherein the outer tube assembly includes an outer tube seat connected to the adjustment knob, the outer tube seat is provided with an outer tube body, the front end of the outer tube body is provided with an operation window, the inner tube assembly includes an inner tube body connected to the rotation drive assembly, the front end of the inner tube body is provided with an inner cutting edge, and in the initial planing state, the inner cutting edge corresponds to the operation window.

[0010] Furthermore, the above-mentioned manual planer suitable for endoscopes, wherein the rotation drive assembly includes a cylindrical cam, the cylindrical cam is surrounded by arc guide grooves, and the rotation guide mechanism is a convex column arranged in the shell, and the convex column is embedded in the arc guide groove.

[0011] Furthermore, the above-mentioned manual planer suitable for endoscopes, wherein the elastic drive component includes a bearing base, the front end of the bearing base is in contact with the rotation guide mechanism, the bearing base is sleeved with an elastic component, the front end of the elastic component is located on the bearing base and a retaining ring is movably provided, a limiting groove is provided at the corresponding position in the outer shell, the outer side of the retaining ring is embedded in the limiting groove, and a lower rack is distributed on the lower edge of the bearing base, and the lower rack is movably contacted with the press trigger.

[0012] Furthermore, the above-mentioned manual planer suitable for endoscopes, wherein the front end of the supporting base is provided with a contact groove, a limiting column is provided in the contact groove, a stop block is provided at the end of the rotation guide mechanism, an annular groove is opened on the stop block, the limiting column is embedded in the annular groove, and the elastic component is a spring.

[0013] Furthermore, the above-mentioned manual planer suitable for endoscopes, wherein the collector includes a water box, the front end of the water box is conductively provided with a drainage cylinder, the drainage cylinder is conductively connected to the inner tube assembly, the drainage cylinder is provided with a preset water outlet, the water box is also conductively provided with an external tube, and a filter assembly is provided in the water box.

[0014] Furthermore, in the above-mentioned manual planer suitable for endoscope, a receiving groove is provided at the front end of the drainage tube, an O-ring is provided in the receiving groove, and the O-ring is inserted into the rear end of the inner tube assembly.

[0015] Furthermore, in the above-mentioned manual planer suitable for endoscopes, a first gasket is provided between the filter assembly and the water box, and the filter assembly is a filter cup; the water box is a split structure, which is connected by a threaded structure, and a second gasket is provided at the connection of the threaded structure.

[0016] Furthermore, in the above-mentioned manual planer suitable for endoscope, the external tube is a bamboo tube.

[0017] Furthermore, the above-mentioned manual planer suitable for endoscopes, wherein the press trigger includes a press wrench, the press wrench is connected to the outer shell through a rotating shaft, the upper end of the press wrench is provided with a contact arc, the contact arc is distributed with an upper rack, and the upper rack is connected to the elastic drive component.

[0018] By means of the above solution, the present invention has at least the following advantages:

[0019] 1. There is no need to use a motor as a power source, and there will be no operational interference due to motor vibration, so precise cutting can be achieved.

[0020] 2. It can realize cold knife operation and separate tissues through rotary resection without the need for additional cutting blades. It can be achieved through the cooperation of the inner tube component and the outer tube component. It does not occupy the front space of the outer tube component and will not cut other normal tissues. It is especially suitable for endometrial resection.

[0021] 3. It is equipped with a filter component to separate the liquid and tissue after the cutting operation, making it easy to remove the tissue for analysis without the user having to take samples from the cutting edge, ensuring safety and convenience of use.

[0022] 4. The overall structure is simple and can be combined with the current conventional endoscope system, with good versatility.

[0023] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a manual planer suitable for endoscopes.

[0025] Figure 2 It is a structural diagram of the outer tube body.

[0026] Figure 3 It is a structural diagram of the inner tube assembly and the rotary drive assembly.

[0027] Figure 4 It is a structural diagram of the elastic drive component.

[0028] Figure 5 It is a structural diagram of the collector.

[0029] The meanings of the reference numerals in the figures are as follows.

[0030] 1 Housing 2 Adjustment knob

[0031] 3 Elastic drive assembly 4 Collector

[0032] 5 Press the trigger 6 Outer tube socket

[0033] 7 Outer tube body 8 Operation window

[0034] 9 Inner tube body 10 Inner cutting edge

[0035] 11 Cylindrical cam 12 Arc guide groove

[0036] 13 bearing base 14 elastic component

[0037] 15 retaining ring 16 lower rack

[0038] 17 Stopper 18 Water container

[0039] 19 Drain tube 20 External pipe

[0040] 21 filter assembly 22 O-ring

[0041] 23 First washer 24 Second washer

[0042] 25 Upper rack DETAILED DESCRIPTION

[0043] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] like Figures 1 to 5 The endoscopic manual shaver comprises a housing 1. Its unique feature is that the front end of the housing 1 is connected to an outer tube assembly via an adjustment knob 2. This allows for easy replacement of the outer tube assembly with the appropriate one, facilitating assembly. Furthermore, to facilitate subsequent rotary cutting operations, an inner tube assembly is positioned within the outer tube assembly, which in turn is equipped with a rotary drive assembly. A rotary guide mechanism is provided within the housing 1, with the rotary drive assembly in active contact with the rotary guide mechanism. Furthermore, to effectively control the displacement of the inner tube assembly and enable self-resetting after cutting, an elastic drive assembly 3 is positioned behind the rotary guide mechanism. During operation, a collector 4 is positioned behind the elastic drive assembly 3, with the rear end of the inner tube assembly connected to the collector 4, to collect cut tissue. Furthermore, to facilitate manual triggering, the elastic drive assembly 3 is also movably connected to a press-action trigger 5.

[0045] In accordance with a preferred embodiment of the present invention, the outer tube assembly includes an outer tube base 6 connected to the adjustment knob 2, on which is disposed an outer tube body 7, with an operating window 8 provided at the front end of the outer tube body 7. This facilitates placing the tissue to be cut within the operating window 8 during subsequent operations. Simultaneously, to facilitate the cutting operation, the inner tube assembly includes an inner tube body 9 connected to the rotary drive assembly, with an inner cutting edge 10 provided at the front end. Furthermore, in the initial planing state, the inner cutting edge 10 corresponds to the operating window 8. Thus, the cut tissue can be delivered into the collector 4 through the cooperation of the operating window 8 and the inner cutting edge 10.

[0046] To achieve stable rotary cutting, the rotary drive assembly includes a cylindrical cam 11, which is surrounded by arcuate guide grooves 12. Correspondingly, the rotary guide mechanism employed is a boss (not shown) disposed within the housing 1, which engages within the arcuate guide grooves 12. Thus, the interaction between the boss and the arcuate guide grooves 12 allows the inner tube body 9 to simultaneously rotate while displacing.

[0047] In practical implementation, the elastic drive assembly 3 includes a support base 13, the front end of which contacts the rotation guide mechanism. To facilitate force application and reset adjustment, an elastic assembly 14 is sleeved onto the support base 13. A retaining ring 15 is movably mounted at the front end of the elastic assembly 14, located on the support base 13. Furthermore, a retaining groove is provided within the housing 1 at the corresponding position, into which the outer side of the retaining ring 15 engages. This effectively assists in positioning the retaining ring 15, allowing it to better restrain the front end of the elastic assembly 14, facilitating effective compression and release guidance. Furthermore, to facilitate manual force control, a lower rack 16 is provided along the lower edge of the support base 13, which movably contacts the push trigger 5. In practice, a contact groove is provided at the front end of the support base 13, within which a retaining post is positioned. A stopper 17 is provided at the end of the rotation guide mechanism. The stopper 17 has an annular groove into which the retaining post engages. In this way, the cylindrical cam 11 can be movably docked with the supporting base 13 without affecting its own rotation. Furthermore, considering the convenience of applying force and resetting, the elastic component 14 is a spring.

[0048] Taking a closer look, the collector 4 used includes a water box 18, and the front end of the water box 18 is conductively provided with a drain cylinder 19, and the drain cylinder 19 is conductively connected to the end of the inner tube body 9 to which the inner tube assembly belongs. The drain cylinder 19 is provided with a preset water outlet. At the same time, considering the need to drain the liquid, the water box 18 is also conductively provided with an external pipe 20. Moreover, in order to be able to separate the tissue while discharging the liquid, a filter assembly 21 is provided in the water box 18. During implementation, in order to have an appropriate liquid-tight effect, a receiving groove is provided at the front end of the drain cylinder 19, and an O-ring 22 is provided in the receiving groove, and the rear end of the inner tube body 9 to which the inner tube assembly belongs is inserted into the O-ring 22. Moreover, a first gasket 23 is provided between the filter assembly 21 and the water box 18, and the filter assembly 21 is a filter mesh cup.

[0049] To facilitate the removal of tissue from the filter assembly 21, the water container 18 is a split-piece structure, connected by a threaded structure. A second gasket 24 is provided at the threaded joint. This ensures a watertight seal. Furthermore, the external pipe 20 is a bamboo tube, which prevents it from becoming loose when connected to the external pipeline.

[0050] Furthermore, the push trigger 5 employed in the present invention includes a push wrench, which is connected to the housing 1 via a rotating shaft. Furthermore, a contact arc is provided at the upper end of the push wrench, on which an upper rack 25 is disposed. The upper rack 25 meshes with the lower rack 16 of the elastic drive assembly 3. Thus, the spring assembly can be driven by operating the push wrench and utilizing the interaction between the racks.

[0051] The working principle of this utility model is as follows:

[0052] The utility model is combined with an endoscope device. During use, the operating window 8 is aligned with the tissue. During this period, the adjustment knob 2 can be manually rotated to ensure that the angle of the operating window 8 is consistent with the position of the tissue.

[0053] Afterwards, after covering the operating window 8 with tissue, manually apply force to the pressing trigger 5. Thus, through the mutual cooperation of the upper rack 25 and the lower rack 16, the spring assembly and the inner tube assembly are driven to move to the left.

[0054] At the same time, the inner tube assembly rotates, and the inner cutting edge 10 at its front end cooperates with the operating window 8 to generate a shear force, which cuts the tissue. The severed tissue then falls into the inner tube. During this period, the spring is compressed by the force of the retaining ring 15.

[0055] Subsequently, the user releases the trigger 5 , and the inner tube assembly 5 moves backward due to the reset of the spring, and the inner tube body 9 exits the range of the operation window 8 .

[0056] Next, air is pumped through the pipe connected to the external pipe 20. Tissue and liquid from the cutting process are drawn into the collector 4. After being filtered through the filter cup, the liquid is discharged through the preset outlet of the drain tube 19. During this period, if the liquid cannot be discharged in time, it can be temporarily stored in the water storage box 18 and then discharged through the external pipe 20.

[0057] Finally, if the operator needs to analyze the resected tissue, he can directly remove the collector 4 and split it. The tissue can be clamped by the corresponding instrument without having to manually peel off the tissue from the inner tube assembly.

[0058] It can be seen from the above text description and the accompanying drawings that the present invention has the following advantages:

[0059] 1. There is no need to use a motor as a power source, and there will be no operational interference due to motor vibration, so precise cutting can be achieved.

[0060] 2. It can realize cold knife operation and separate tissues through rotary resection without the need for additional cutting blades. It can be achieved through the cooperation of the inner tube component and the outer tube component. It does not occupy the front space of the outer tube component and will not cut other normal tissues. It is especially suitable for endometrial resection.

[0061] 3. It is equipped with a filter component to separate the liquid and tissue after the cutting operation, making it easy to remove the tissue for analysis without the user having to take samples from the cutting edge, ensuring safety and convenience of use.

[0062] 4. The overall structure is simple and can be combined with the current conventional endoscope system, with good versatility.

[0063] In addition, the indicated orientations or positional relationships described in the present invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or structure referred to must have a specific orientation or be operated in a specific orientation structure. Therefore, they cannot be understood as a limitation on the present invention.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A manual planer for an endoscope, comprising a housing, characterized in that: The front end of the shell is connected to the outer tube assembly through an adjustment knob, the outer tube assembly is provided with an inner tube assembly, the inner tube assembly is provided with a rotation drive assembly, the shell is provided with a rotation guide mechanism, the rotation drive assembly is in movably contact with the rotation guide mechanism, the shell is provided with an elastic drive assembly on the rear side of the rotation guide mechanism, the rear side of the elastic drive assembly is provided with a collector, the tail end of the inner tube assembly is connected to the collector, and the elastic drive assembly is also movably connected to the press trigger.

2. The manual shaver suitable for endoscope according to claim 1, characterized in that: The outer tube assembly includes an outer tube seat connected to the adjustment knob, an outer tube body is provided on the outer tube seat, and an operation window is provided at the front end of the outer tube body. The inner tube assembly includes an inner tube body connected to the rotation drive assembly, and an inner cutting edge is provided at the front end of the inner tube body. In the initial planing state, the inner cutting edge corresponds to the operation window.

3. The manual shaver for endoscope according to claim 1, characterized in that: The rotary drive assembly includes a cylindrical cam, and arc guide grooves are distributed around the cylindrical cam. The rotary guide mechanism is a convex column arranged in the shell, and the convex column is embedded in the arc guide groove.

4. The manual shaver for endoscope according to claim 1, characterized in that: The elastic driving component includes a bearing base, the front end of the bearing base is in contact with the rotation guide mechanism, an elastic component is sleeved on the bearing base, the front end of the elastic component is located on the bearing base and a retaining ring is movably provided, a limiting groove is provided at the corresponding position in the shell, the outer side of the retaining ring is embedded in the limiting groove, a lower rack is distributed on the lower edge of the bearing base, and the lower rack is in movably contact with the press trigger.

5. The manual shaver suitable for endoscope according to claim 4, characterized in that: A contact groove is provided at the front end of the bearing base, a limiting column is provided in the contact groove, a stopper is provided at the end of the rotation guide mechanism, an annular groove is opened on the stopper, the limiting column is embedded in the annular groove, and the elastic component is a spring.

6. The manual shaver suitable for endoscope according to claim 1, characterized in that: The collector includes a water holding box, the front end of the water holding box is conductively provided with a drainage cylinder, the drainage cylinder is conductively connected to the inner tube assembly, the drainage cylinder is provided with a preset water outlet, the water holding box is also conductively provided with an external pipe, and a filter assembly is provided in the water holding box.

7. The manual shaver suitable for endoscope according to claim 6, characterized in that: The front end of the drainage cylinder is provided with a receiving groove, an O-ring is provided in the receiving groove, and the rear end of the inner tube assembly is inserted into the O-ring.

8. The manual shaver suitable for endoscope according to claim 6, characterized in that: A first gasket is provided between the filter assembly and the water box, and the filter assembly is a filter cup; the water box is a split structure, which is connected by a threaded structure, and a second gasket is provided at the connection of the threaded structure.

9. The manual shaver suitable for endoscope according to claim 6, characterized in that: The external pipe is a bamboo tube.

10. The manual shaver suitable for endoscope according to claim 1, characterized in that: The push trigger includes a push wrench, which is connected to the housing through a rotating shaft. A contact arc is provided at the upper end of the push wrench, an upper rack is distributed on the contact arc, and the upper rack is connected to the elastic drive component.

Images