Equipment for hysteroscopic surgery

Abstract

The invention relates to the field of medical auxiliary equipment, in particular to hysteroscope operation equipment which comprises a hysteroscope body, a waste liquid collecting mechanism and a specimen processing mechanism, the hysteroscope body comprises a water inlet pipe and a water outlet pipe, and flow meters are mounted on the water inlet pipe and the water outlet pipe; the waste liquid collecting mechanism comprises an outer barrel, an inner barrel, a cover body and a pipeline, a nozzle is arranged on the cover body, an annular cavity is formed between the inner barrel and the outer barrel, and the inner barrel is communicated with the outer barrel; the specimen processing mechanism comprises a floating ring, a rack, a gear, a pin shaft, an annular specimen cup, a filter screen and a grid cutter which are arranged in the annular cavity, the rack is fixedly connected with the floating ring and can be meshed with the gear, the specimen cup is clamped with the upper end of the rack, the filter screen is placed in the specimen cup and can be matched with the pipeline, an abutting rod is fixed to the cover body, and the grid cutter is fixed to the abutting rod. The gear is rotationally arranged in the outer barrel through a pin shaft, and the pin shaft extends out of the outer barrel. By the adoption of the technical scheme, the in-out amount of normal saline can be measured conveniently, and operation before a sample is submitted for inspection is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of medical auxiliary equipment, and in particular to equipment for hysteroscopic surgery. Background Art

[0002] Hysteroscopic surgery requires saline solution to distend the uterus, so that the uterine cavity is in an expanded state for easy operation. The saline solution enters the uterine cavity through the water inlet pipe, and then is discharged from the uterine cavity along with blood and water through the drainage pipe into the waste liquid collection bucket. In order to maintain the balance of fluids in the body and ensure the safety of the operation, the amount of saline solution in and out needs to be measured. In addition, a filter is installed in the waste liquid collection bucket to filter tissues in the waste liquid, such as fibroid fragments and endometrial biopsy tissue, for further testing. Before testing, the specimen tissue needs to be cleaned. To facilitate the subsequent full penetration of the fixative, tissues that are too large, such as fibroid fragments larger than 1 cm, need to be cut into small pieces of 5-10 mm with sterile scissors. Then, the specimen is placed in the specimen box with tweezers and the fixative is added for testing, which is relatively inconvenient. Summary of the Invention

[0003] The present invention aims to provide a device for hysteroscopic surgery, which can measure the amount of physiological saline in and out and facilitate the operation before specimens are sent for examination.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a hysteroscopic surgical device, comprising a hysteroscope body, a waste liquid collection mechanism and a specimen processing mechanism, the hysteroscope body comprising a water inlet pipe and a water outlet pipe, both of which are equipped with flow meters; the waste liquid collection mechanism comprises an outer barrel, an inner barrel arranged in the outer barrel, a cover body detachably connected to the outer barrel, and a pipe rotatably connected to the cover body, a plurality of nozzles are provided on the cover body, an annular cavity is formed between the inner barrel and the outer barrel, the height of the inner barrel is lower than the height of the outer barrel, and the side wall of the bottom of the inner barrel is provided with a nozzle connected to the outer barrel. The specimen processing mechanism includes a floating ring, a rack, a gear, a pin, an annular specimen cup, a filter and a grid cutter. The floating ring is slidably arranged in the annular cavity. The lower end of the rack is fixedly connected to the floating ring. The upper end of the rack is provided with a bayonet. The specimen cup is clamped with the upper end of the rack. The filter is placed inside the specimen cup. A convex column that can cooperate with the pipeline key is fixed to the middle of the filter. An abutment rod is fixed on the cover body. The grid cutter is fixed to the abutment rod and can contact the filter. The gear is rotatably arranged in the outer barrel through the pin and the pin extends out of the outer barrel. The gear is located above the rack and can engage with the rack.

[0005] The beneficial effects of this solution are: when performing hysteroscopic surgery, the water outlet pipe is connected to the pipeline, and the normal saline enters the uterine cavity through the water inlet pipe, and then is discharged into the outer barrel and the inner barrel for collection along with the waste liquid through the water outlet pipe. The flow meter measures the normal saline entering and leaving, and by calculating the difference between the liquid inflow and liquid outflow, maintaining the difference within a certain range is conducive to ensuring the safety of the operation.

[0006] After the waste liquid is discharged to the outer barrel through the outlet pipe and the pipeline, the tissue in the waste liquid is filtered and intercepted by the filter, and the waste liquid enters the inner barrel, and then enters the annular cavity through the through hole, thereby driving the floating ring to move upward, and then driving the specimen cup and filter screen upward through the rack; after the operation is completed, water flows through the nozzle to flush the tissue. During the flushing process, the rack engages with the gear, and then the medical staff rotates the pin shaft in the opposite direction to drive the rack downward through the gear. When the upper end of the rack engages with the gear at the extreme position and then separates, since the lower end of the rack is in contact with the waste liquid buffer through the floating ring, the rack will float up again and engage with the gear after separation. The rotation of the gear will drive the rack down again. In this process, the cycle drives the specimen cup and filter screen to rise and fall, thereby driving the tissue on the filter screen to flip, thereby achieving sufficient cleaning of the tissue.

[0007] After cleaning is completed, the medical staff rotates the pin shaft forward to drive the rack, specimen cup and filter screen to move up through the gear. The convex column on the filter screen cooperates with the pipe key to prevent the waste liquid remaining in the pipe from falling; after the filter screen contacts the grid cutter, the grid cutter cuts the large particles of tissue on the filter screen, and then the medical staff rotates the pin shaft in the opposite direction to drive the rack to move downward through the gear to separate the filter screen from the grid cutter; then rotate the pipe, and drive the convex column and the filter screen that cooperate with its key to rotate through the pipe, so that the tissue specimen on the screen is centrifuged into the specimen cup, thereby realizing tissue cleaning, cutting and boxing, which is more convenient.

[0008] In addition, placing the tissue specimen into the annular specimen cup by rotating it can also prevent tissue accumulation and improve penetration efficiency. Ordinary specimen cups are mostly single cylindrical cavities. If multiple small tissues are placed in them, they are easily stacked and squeezed at the bottom of the cup. The tissues at the stacked position cannot directly contact the fixative and need to wait for the fixative to slowly penetrate into the interior, which may cause local cell autolysis. The method adopted in this scheme allows the tissue to be spread naturally in the annular specimen cup. The tissues can independently contact the fixative, improve penetration efficiency, ensure that the tissue is fully fixed from the surface to the center, and the cell morphology is more complete, providing high-quality specimens for pathological sections.

[0009] Secondly, the fixative in ordinary specimen cups tends to form a static area at the bottom of the cup. Residual impurities after rinsing, such as small amounts of blood and tissue debris, tend to settle at the bottom of the cup. Long-term contact with the specimen may contaminate the tissue. However, the annular specimen cup of this solution makes it easier for the fixative to flow. For example, when it is slightly shaken, the fixative circulates along the annular structure, and the deposited impurities will flow with the fixative, reducing the contact between the impurities and the specimen and reducing the risk of contamination.

[0010] Further, the inner side wall of the specimen cup is provided with an annular groove, a barrel is slidably arranged in the annular groove, a spring is arranged between the lower end of the barrel and the bottom of the annular groove, and the upper end of the barrel is abutted against the abutting rod and then slid into the annular groove. The beneficial effects of the scheme are that the barrel is beneficial to prevent the waste liquid from splashing into the specimen cup, and facilitates lifting the specimen cup through the barrel, and when the buckle cover is opened to the lid on the specimen cup, the auxiliary pushing force provided by the spring is beneficial to opening the lid, avoiding that the fixing liquid is splashed out due to the force for opening the lid.

[0011] Further, the controller and the alarm are further included, the flow meters on the water inlet pipe and the water outlet pipe are connected with the controller and the alarm, and when the value of the flow meter on the water inlet pipe minus the value of the flow meter on the water outlet pipe is greater than or equal to 500 ml, the controller controls the alarm to alarm.

[0012] Further, the gear belt, the two groups of racks, the two groups of gears and the two groups of pin shafts are further included, and the two pin shafts are connected through the gear belt.

[0013] Further, the height of the outer side wall of the specimen cup is greater than the height of the inner side wall.

[0014] Further, the motor is installed on the cover body, and the gears meshing with each other are arranged on the motor and the pipeline.

[0015] Further, the upper end of the convex column is conical.

[0016] Further, the outer barrel and the pipeline are transparent. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a three-dimensional view of the present application; Figure 2 is a schematic view of the waste liquid collecting mechanism and the specimen processing mechanism of the present application; Figure 3 is Figure 2 is a local enlarged view of A in FIG. 4.

[0018] The following will be further described in detail through specific embodiments: The reference signs in the drawings of the specification include: a water inlet pipe 1, a water outlet pipe 2, a flow meter 3, an outer barrel 4, an inner barrel 5, a cover body 6, a pipeline 7, a through hole 8, a motor 9, a spray head 10, a floating ring 11, a rack 12, a specimen cup 13, a filter screen 14, a grid cutter 15, a convex column 16, an abutting rod 17, and a barrel 18. DETAILED DESCRIPTION

[0019] EMBODIMENT The embodiment is basically as shown in the drawings, like Figures 1-3 , Figure 1 , 2The device shown is a hysteroscopic surgical device, including a hysteroscope body, a waste liquid collection mechanism and a specimen processing mechanism. The hysteroscope body includes an inlet pipe 1 and an outlet pipe 2. A flow meter 3 is installed on both the inlet pipe 1 and the outlet pipe 2. The flow meters 3 on the inlet pipe 1 and the outlet pipe 2 are connected to an alarm through a controller. When the value of the flow meter 3 on the inlet pipe 1 minus the value of the flow meter 3 on the outlet pipe 2 is greater than or equal to 500 ml, the controller controls the alarm to sound an alarm.

[0020] like Figure 2 As shown, the waste liquid collection mechanism includes an outer barrel 4, an inner barrel 5, a cover body 6 and a pipe 7. The inner barrel 5 is welded in the outer barrel 4, and an annular cavity is formed between the inner barrel 5 and the outer barrel 4. The height of the inner barrel 5 is lower than that of the outer barrel 4 and a through hole 8 connected to the outer barrel 4 is opened on the side wall of the bottom of the inner barrel 5; the cover body 6 is detachably connected to the outer barrel 4. This embodiment uses a snap connection. The pipe 7 is rotatably connected to the cover body 6. The water outlet pipe 2 of the hysteroscope body can be connected to the pipe 7 with a hose. In order to facilitate the automatic rotation of the pipe 7, a motor 9 is installed on the cover body 6. Gears that mesh with each other are fixedly provided on the motor 9 and the pipe 7; a plurality of nozzles 10 are provided on the cover body 6. The nozzles 10 are divided into annular portions. The nozzles 10 are connected to each other and are connected to the water source through a pipeline.

[0021] The specimen processing mechanism includes a floating ring 11, a rack 12, a pin, a toothed belt, an annular specimen cup 13, a filter 14 and a grid cutter 15. There are two sets of racks 12 and pins. The pins are rotatably set on the outer barrel 4, and the rear end of the pins extends out of the outer barrel 4. The two protruding parts of the pins are connected by a toothed belt. A crank is welded to one of the pins, and a gear is also fixedly welded to the pin. The gear is located in the outer barrel 4 and above the rack 12.

[0022] The floating ring 11 is slidably arranged in the annular cavity, and the lower end of the rack 12 is fixedly connected to the floating ring 11, such as by bonding. The upper end of the rack 12 is provided with a bayonet, and the rack 12 can mesh with the gear after moving upward; Figure 3 As shown, a square hole is opened on the specimen cup 13 to engage with the upper end of the rack 12, and the filter screen 14 is placed inside the specimen cup 13. There is friction between the side wall of the filter screen 14 and the specimen cup 13. A protrusion 16 that can cooperate with the key of the pipe 7 is fixed in the middle of the filter screen 14, that is, a flat key is welded on the protrusion 16, and a key groove is vertically opened on the inner wall of the pipe 7. The width of the key groove is greater than the width of the flat key. After the staff puts the filter screen 14 and the cover body 6 in place according to the direction of the flat key and the key groove, the flat key is aligned with the key groove. In addition, the upper end of the protrusion 16 is tapered, and the outer barrel 4 and the pipe 7 can be made of transparent material.

[0023] like Figure 2 As shown, the cover 6 is welded with an abutment rod 17, and the grid cutter 15 is welded with the abutment rod 17 and can contact the filter screen 14; Figure 3As shown, the inner wall of the specimen cup 13 is provided with an annular groove, and a tube 18 is slidably arranged in the annular groove. A spring is welded between the lower end of the tube 18 and the bottom of the annular groove. The upper end of the tube 18 abuts against the abutting rod 17 and then slides into the annular groove; of course, the height of the outer wall of the specimen cup 13 can be set to be greater than the height of the inner wall.

[0024] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A device for hysteroscopic surgery, characterized in that: The invention comprises a hysteroscope body, a waste liquid collection mechanism and a specimen processing mechanism. The hysteroscope body comprises a water inlet pipe and a water outlet pipe, and a flow meter is installed on the water inlet pipe and the water outlet pipe; the waste liquid collection mechanism comprises an outer barrel, an inner barrel arranged in the outer barrel, a cover body detachably connected to the outer barrel, and a pipe rotatably connected to the cover body, a plurality of nozzles are arranged on the cover body, an annular cavity is formed between the inner barrel and the outer barrel, the height of the inner barrel is lower than the height of the outer barrel, and the side wall of the bottom of the inner barrel is provided with a through hole connected to the outer barrel; the specimen processing mechanism comprises a floating ring, a gear The rack comprises a gear, a pin, an annular specimen cup, a filter screen and a grid cutter. The floating ring is slidably arranged in the annular cavity. The lower end of the rack is fixedly connected to the floating ring. The upper end of the rack is provided with a bayonet. The specimen cup is clamped with the upper end of the rack. The filter screen is placed inside the specimen cup. A convex column that can cooperate with the pipeline key is fixed in the middle of the filter screen. An abutment rod is fixed on the cover body. The grid cutter is fixed to the abutment rod and can contact the filter screen. The gear is rotatably arranged in the outer barrel through the pin and the pin extends out of the outer barrel. The gear is located above the rack and can engage with the rack.

2. The hysteroscopic surgical device according to claim 1, characterized in that: The inner wall of the specimen cup is provided with an annular groove, in which a tube is slidably arranged, a spring is arranged between the lower end of the tube and the bottom of the annular groove, and the upper end of the tube abuts against the abutting rod and then slides into the annular groove.

3. The hysteroscopic surgical device according to claim 2, characterized in that: It also includes a controller and an alarm. The flow meters on the water inlet pipe and the water outlet pipe are connected to the alarm through the controller. When the value of the flow meter on the water inlet pipe minus the value of the flow meter on the water outlet pipe is greater than or equal to 500ml, the controller controls the alarm to sound.

4. The hysteroscopic surgical device according to claim 3, characterized in that: It also includes a toothed belt, two groups of racks, two groups of gears, and two groups of pins, and the two pins are connected by a toothed belt.

5. The hysteroscopic surgical device according to claim 4, characterized in that: The height of the outer wall of the specimen cup is greater than the height of the inner wall.

6. The hysteroscopic surgical device according to claim 5, characterized in that: A motor is installed on the cover body, and gears meshing with each other are also provided on the motor and the pipeline.

7. The hysteroscopic surgical device according to claim 6, characterized in that: The upper end of the boss is tapered.

8. The hysteroscopic surgical device according to claim 7, characterized in that: The outer barrel and pipe are transparent.

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