Sealing structure for resectoscope

Abstract

The invention discloses a sealing structure for a resectoscope, and relates to the technical field of sealing structures, the sealing structure comprises a first sealing ring arranged around the outer wall of an inner sheath of the resectoscope, and a water inlet of the inner sheath of the resectoscope is located between the first sealing rings; the spring clamp comprises a clamping sleeve, a first spring and a second spring; the jacket is slidably arranged on the peripheral side wall of the resectoscope inner sheath in a sleeving mode, a first spring groove is formed in the end, facing the resectoscope outer sheath, of the jacket, and the first spring is arranged in the first spring groove and pushes the resectoscope outer sheath to be away from the jacket; a second spring groove is formed in the end, back to the resectoscope outer sheath, of the clamping sleeve, and the second spring is installed in the second spring groove and pushes the resectoscope inner sheath to be away from the clamping sleeve. The resectoscope operating handle is provided with a penetrating hole for the electrode cutter head to penetrate through, the second sealing ring is located between the outer wall of the electrode cutter head and the hole wall of the penetrating hole, and a locking conical surface is formed on the peripheral side wall of the second sealing ring. The sealing performance can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of sealing structures, and in particular to a sealing structure for an electroresectoscope. Background Art

[0002] In recent years, with the development of minimally invasive surgical techniques, resectoscopes, as an important medical device, have been widely used in many departments such as urology and gynecology.

[0003] When using a resectoscope, saline is usually injected into the body to expand the field of view and remove blood, thereby improving the visibility and safety of the operation. However, one of the common problems encountered during the use of a resectoscope is the poor sealing between the inner and outer sheaths and the poor sealing between the operating handle and the electrode blade, which causes water leakage, which not only affects the progress of the operation, but also may cause contamination to the surgical area and increase the risk of infection.

[0004] At present, the common sealing measure for resectoscopes on the market often uses rubber sealing rings, which are usually installed inside the operating handle of the resectoscope and achieve sealing through compression force. However, rubber sealing rings are prone to aging and deformation during long-term use, resulting in a decrease in sealing performance. Summary of the invention

[0005] In order to improve the sealing performance, the present application provides a sealing structure for an electric resectoscope.

[0006] The present application provides a sealing structure for an electric resectoscope, which adopts the following technical solution: A sealing structure for an electric resectoscope, It includes a first sealing ring, which is arranged around the outer wall of the inner sheath of the resectoscope, the first sealing ring is located between the inner wall of the outer sheath of the resectoscope and the outer wall of the inner sheath of the resectoscope, the first sealing ring is symmetrically arranged, and the water inlet of the inner sheath of the resectoscope is located between the first sealing rings; A spring clip, comprising a clip sleeve, a first spring and a second spring; The jacket is slidably mounted on the outer peripheral side wall of the inner sheath of the resectoscope, and a first spring groove is formed at one end of the jacket facing the outer sheath of the resectoscope. The first spring is arranged in the first spring groove, and the first spring pushes the outer sheath of the resectoscope away from the jacket; A second spring groove is formed at one end of the jacket facing away from the outer sheath of the resectoscope, and the second spring is installed in the second spring groove, and the second spring pushes the inner sheath of the resectoscope away from the jacket; The second sealing ring is arranged on the operating handle of the resectoscope. The operating handle of the resectoscope is formed with a through hole for the electrode bit to pass through. The second sealing ring is located between the outer wall of the electrode bit and the wall of the through hole. The outer peripheral side wall of the second sealing ring is formed with a locking cone surface.

[0007] By adopting the above technical solution, the first sealing ring is embedded in the gap between the inner sheath and the outer sheath through the annular structure, thereby achieving a preliminary sealing effect. Then, through the action of the first spring and the second spring, the inner sheath and the outer sheath of the resectoscope are pressed against the first sealing ring in a direction away from each other, so that when the first sealing ring ages, the first sealing ring can maintain the degree of tightness between the inner sheath and the outer sheath of the resectoscope, further enhancing the sealing effect. The second sealing ring is tightly combined with the wall of the through hole through the locking cone surface, effectively reducing the leakage of liquid from the gap between the operating handle and the electrode blade head, and when the second sealing ring ages, the second sealing ring can be adapted to maintain the sealing performance between the through hole and the electrode blade head of the resectoscope.

[0008] Optionally, outer walls of the first sealing ring and the second sealing ring are provided with a nano waterproof coating.

[0009] By adopting the above technical solution, the outer walls of the first sealing ring and the second sealing ring are provided with a nano-waterproof coating, which can significantly enhance the waterproof performance of the sealing ring, effectively reduce liquid penetration, further improve the overall sealing effect of the electrosurgical resectoscope, reduce the occurrence of water leakage, and ensure the safety and reliability of the surgical process.

[0010] Optionally, the sealing structure further includes a connecting seat, a sealing airbag and an extrusion plate; The connecting seat comprises a first connecting seat and a second connecting seat, the first connecting seat is disposed around the outer wall of the inner sheath of the resectoscope, and the outer peripheral side wall of the first connecting seat is formed with a first connecting groove for the first sealing ring to be inserted into; The second connection seat is disposed around the inner peripheral side wall of the outer sheath of the resectoscope, and the second connection seat is formed with a second connection groove for the first sealing ring to be inserted into; The sealing airbags are respectively arranged on the groove wall of the first connecting groove away from the groove opening and the groove wall of the second connecting groove away from the groove opening; An air supply bag is arranged in the connecting seat, and a connecting pipe connecting the air supply bag and the sealing bag is arranged in the connecting seat; The extrusion plate comprises a first extrusion plate and a second extrusion plate, wherein the first extrusion plate is slidably disposed on a groove wall of the first connecting groove away from the jacket; The first sealing ring pushes the first extrusion plate to squeeze the corresponding air supply airbag, and at this time the sealing airbag expands into the first connecting groove and wraps the inner peripheral side wall of the first sealing ring; The second extrusion plate is slidably disposed on the groove wall of the second connecting groove close to one side of the jacket, and the first sealing ring pushes the second extrusion plate to squeeze the corresponding air supply airbag. At this time, the corresponding sealing airbag expands into the second connecting groove and wraps the outer peripheral side wall of the first sealing ring.

[0011] By adopting the above technical solution, the combined design of the connecting seat, the sealing airbag and the extrusion plate enables the first sealing ring to automatically expand when under pressure, fit more closely to the inner first sealing ring, and further enhance the sealing performance.

[0012] Optionally, the extrusion plate is inclined to form a guide surface for guiding the first sealing ring into the first connecting groove and the second connecting groove.

[0013] By adopting the above technical solution, the design of the guide surface enables the first sealing ring to enter the first connecting groove and the second connecting groove more smoothly, thereby reducing resistance during the installation process and improving assembly efficiency.

[0014] Optionally, a transmission seat is provided in the connection seat, and a transmission cavity is formed in the transmission seat; The connecting tube includes a first tube body and a second tube body, the first tube body connects the air supply airbag and the transmission cavity, and the second tube body connects the transmission cavity and the sealing airbag; A blocking plate is hinged in the transmission seat, and the transmission seat is provided with a control component for controlling the blocking plate to block the first pipe opening; When the extrusion plate squeezes the air supply airbag, the blocking plate flips over and moves away from the first tube body.

[0015] By adopting the above technical solution, when the extrusion plate squeezes the air supply airbag, the sealing plate flips away from the first tube body, ensuring that the gas can be smoothly transmitted from the air supply airbag to the sealing airbag, thereby achieving effective wrapping and sealing of the first sealing ring, and at the same time limiting the airflow in the sealing airbag from flowing back into the air supply airbag.

[0016] Optionally, the control component includes a first magnet and a second magnet with opposite magnetic properties, the first magnet is arranged on the side of the blocking plate facing the first tube body, and the second magnet is arranged on the transmission seat; When the first magnet abuts against the second magnet, the blocking plate blocks the tube opening of the first tube body at a side away from the air supply bag.

[0017] By adopting the above technical solution, the first tube body is automatically blocked by the blocking plate by utilizing the interaction between the first magnet and the second magnet with opposite magnetic properties. At the same time, when gas circulation is required, the blocking plate can quickly flip away from the first tube body to ensure smooth gas transmission, thereby improving the overall performance and response speed of the sealing structure.

[0018] Optionally, the connection seat is slidably provided with a power plate corresponding to and opposite to the extrusion plate, and the connection seat is provided with a driving assembly; When the first sealing ring is separated from the first connecting groove, the driving assembly drives the power plate to slide into the first connecting groove, and at this time, the driving assembly drives the blocking plate to move away from the first tube body; When the first sealing ring is separated from the second connecting groove, the driving assembly drives the power plate to slide into the second connecting groove. At this time, the driving assembly drives the blocking plate to move away from the first tube body.

[0019] By adopting the above-mentioned technical solution, when the first sealing ring is separated from the first connecting groove or the second connecting groove, the driving component can automatically drive the power plate to slide into the corresponding first connecting groove or the second connecting groove, and at the same time drive the sealing plate away from the first tube body, ensuring that the gas in the air supply airbag can be smoothly transferred to the sealing airbag, so that the sealing airbag expands and wraps the first sealing ring, thereby effectively reducing the possibility of water leakage and improving the sealing performance of the first sealing ring.

[0020] Optionally, the driving assembly includes a driving spring and a driving rope; The driving rope is slidably inserted into the connecting seat, one end of the driving rope is connected to the side of the blocking plate facing away from the first tube body, and the other end is connected to the power plate; The driving spring is sleeved on the outer peripheral side of the driving rope and is located in the connecting seat. One end of the driving spring abuts against the power plate, and the other end abuts against the connecting seat.

[0021] By adopting the above technical solution, the driving assembly can effectively control the movement of the sealing plate, ensuring that when the first sealing ring is detached, the power plate can drive the sealing plate away from the first tube body through the driving rope, ensuring smooth flow of gas, thereby enhancing the expansion effect of the sealing airbag and further improving the sealing performance.

[0022] Optionally, a connecting sealing ring is provided on the outer peripheral side of the driving rope, and the connecting sealing ring is located in the connecting seat.

[0023] By adopting the above technical solution, the setting of the connecting sealing ring effectively reduces the liquid leakage caused by the gap between the driving rope and the inner wall of the connecting seat during movement, and further improves the sealing performance of the entire sealing structure.

[0024] Optionally, the power plate is inclined to have a sliding surface for the first sealing ring to slide.

[0025] By adopting the above technical solution, the sliding surface on the power plate can guide the first sealing ring to slide smoothly into or out of the first connecting groove and the second connecting groove, reduce friction resistance, ensure that the installation and disassembly of the sealing ring is more convenient, and at the same time reduce the damage to the first sealing ring caused by friction, further improving the reliability and service life of the sealing structure.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. Through the action of the first spring and the second spring, the inner sheath and the outer sheath of the resectoscope are pressed against the first sealing ring in a direction away from each other, so that when the first sealing ring is aged, the first sealing ring can maintain the tightness between the inner sheath and the outer sheath of the resectoscope, further enhancing the sealing effect. The second sealing ring is tightly combined with the wall of the through hole through the locking cone surface, effectively reducing the leakage of liquid from the gap between the operating handle and the electrode head, and when the second sealing ring is aged, the second sealing ring can be adapted to maintain the sealing performance between the through hole and the electrode head of the resectoscope; 2. The combined design of the connecting seat, the sealing airbag and the extrusion plate enables the first sealing ring to automatically expand when under pressure, fit the inner first sealing ring more closely, and further enhance the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the external structure of the first embodiment of the present application; Figure 2 is a schematic diagram of the internal cross-section of Embodiment 1 of the present application; Figure 3 yes Figure 1 A magnified schematic diagram of part A; Figure 4 yes Figure 1 A magnified schematic diagram of part B; Figure 5 is a schematic diagram of the internal cross-section of the second embodiment of the present application; Figure 6 yes Figure 5 Enlarged schematic diagram of part C of FIG.

[0028] 1. The first sealing ring; 2. The spring clip; 21. The jacket; 211. The first spring groove; 212. The second spring groove; 22. The first spring; 23. The second spring; 3. The second sealing ring; 31. The locking cone; 4. The power plate; 41. The sliding surface; 5. The connecting seat; 51. The first connecting seat; 511. The first connecting groove; 52. The second connecting seat; 521. The second connecting groove; 53. The transmission seat; 531. The transmission cavity; 532. The blocking plate; 54. The air supply bag; 55. The connecting pipe; 551. The first tube body; 552. The second tube body; 6. The sealing bag; 7. The extrusion plate; 71. The first extrusion plate; 72. The second extrusion plate; 73. The guiding surface; 8. The control assembly; 81. The first magnet; 82. The second magnet; 9. The driving assembly; 91. The driving spring; 92. The driving rope; 921. The connecting sealing ring. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] The embodiment of the present application discloses a sealing structure for a resectoscope.

[0031] The inventor of the present application has found that in recent years, with the development of minimally invasive surgical techniques, the resectoscope, as an important medical device, has been widely used in many departments such as urology and gynecology. When using the resectoscope, physiological saline is usually injected into the body to expand the field of view and remove blood, thereby improving the visibility and safety of the operation. However, one of the problems often encountered during the use of the resectoscope is the poor sealing between the inner sheath and the outer sheath, and the leakage caused by the poor sealing between the operating handle and the electrode blade, which will not only affect the progress of the operation, but also may cause contamination to the surgical area and increase the risk of infection. To this end, the present application mainly adopts a sealing structure for the resectoscope, which achieves the effect of improving the sealing performance. The present application is further described in detail below.

[0032] Embodiment 1 See also Figure 1 and Figure 2 The sealing structure for the resectoscope provided in the embodiment of the present application includes a first sealing ring 1, a spring clip 2, and a second sealing ring 3, which achieves the effect of improving the sealing performance.

[0033] See also Figure 2 and Figure 3 Specifically, the outer sheath of the resectoscope is sleeved outside the inner sheath of the resectoscope, a first sealing groove is formed on the outer wall of the inner sheath of the resectoscope along the circumferential direction, the first sealing ring 1 surrounds the outer wall of the inner sheath of the resectoscope and the inner circumferential side portion is clamped and fixed in the first sealing groove. A second sealing groove extending along the circumferential direction is formed on the inner wall of the outer sheath of the resectoscope, the outer circumferential side portion of the first sealing ring 1 is clamped in the second sealing groove, at this time, the first sealing ring 1 is located between the inner wall of the outer sheath of the resectoscope and the outer wall of the inner sheath, so as to achieve sealing.

[0034] At the same time, two first sealing rings 1 are symmetrically arranged, a water inlet pipe is fixedly arranged on the outer wall of the top of the outer sheath of the resectoscope, and a water outlet pipe is fixedly arranged on the outer wall of the bottom of the outer sheath of the resectoscope; a water inlet is formed on the inner sheath of the resectoscope, and the water inlet is aimed at the water inlet pipe and is offset from the water outlet pipe. The water inlet pipe and the water inlet are located between the two first sealing rings 1, and one of the first sealing rings 1 is located between the water inlet pipe and the water outlet pipe. At this time, the two first sealing rings 1 can form a water transfer cavity between the inner sheath of the resectoscope and the outer sheath of the resectoscope, and the physiological saline introduced by the water inlet pipe enters the water transfer cavity and then enters the water inlet, reducing the possibility of the introduced physiological saline directly leaking out of the water transfer cavity.

[0035] The spring clip 2 is arranged between the outer sheath of the resectoscope and the inner sheath of the resectoscope, and is used to drive the outer sheath of the resectoscope and the inner sheath of the resectoscope to move away from each other, form an axial shear force, improve the tightness between the outer sheath of the resectoscope and the inner sheath of the resectoscope and the first sealing ring 1, and reduce the influence of aging of the first sealing ring 1 on the sealing performance.

[0036] The spring clip 2 includes a sleeve 21, a first spring 22 and a second spring 23. The sleeve 21 is slidably mounted on the outer wall of the inner sheath of the resectoscope. The sleeve 21 is formed with a first spring groove 211 at one end facing the outer sheath. The first spring 22 is installed in the first spring groove 211. One end of the first spring 22 abuts against the groove wall of the first spring groove 211 away from the groove, and the other end abuts against the outer sheath of the resectoscope. When the first spring 22 is elastically released, it pushes the outer sheath of the resectoscope away from the sleeve 21. At this time, the first sealing ring 1 is closer to the sleeve 21 and the degree of tightness with the outer sheath of the resectoscope is improved.

[0037] A second spring groove 212 is formed at one end of the jacket 21 facing away from the outer sheath of the resectoscope, and a second spring 23 is installed in the second spring groove 212. One end of the second spring 23 abuts against the outer wall protrusion of the inner sheath of the resectoscope, and the other end of the second spring 23 abuts against the groove wall of the second spring groove 212 away from the groove. When the second spring 23 is released elastically, the inner sheath of the resectoscope is pushed away from the jacket 21, and at this time, the first sealing ring 1 is more tightly pressed against the inner sheath of the resectoscope on the side away from the jacket 21.

[0038] The resectoscope operating handle is connected to the inner sheath of the resectoscope, wherein the resectoscope operating handle is formed with a through hole, and the electrode blade of the resectoscope is slidably penetrated through the through hole. The second sealing ring 3 is clamped and fixed on the through hole wall, and the electrode blade of the resectoscope slides through the middle of the second sealing ring 3. At this time, the second sealing ring 3 realizes the sealing between the electrode blade of the resectoscope and the through hole wall, reducing the possibility of leakage of saline in the inner sheath of the resectoscope at the through hole.

[0039] See also Figure 3 and Figure 4 At the same time, the outer peripheral side wall of the second sealing ring 3 is inclined to form a locking cone surface 31, and the through hole wall is formed with a corresponding abutment surface. When the second sealing ring 3 is installed, the locking cone surface 31 abuts the abutment surface, further enhancing the sealing performance of the second sealing ring 3 against the through hole wall and the electrode knife of the resectoscope.

[0040] At the same time, in order to further improve the sealing performance of the first sealing ring 1 and the second sealing ring 3, a layer of nano waterproof coating can be coated on the outer surface of the first sealing ring 1 and the second sealing ring 3 to further improve the anti-penetration ability and self-cleaning function of the first sealing ring 1 and the second sealing ring 3 and reduce bacterial growth.

[0041] The implementation principle of a sealing structure for an electric resectoscope in the first embodiment of the present application is as follows: The first sealing ring 1 is embedded in the gap between the inner sheath and the outer sheath through the annular structure, achieving a preliminary sealing effect. At the same time, the symmetrically arranged first sealing ring 1 can form a double seal at the water inlet of the inner sheath, reducing the possibility of leakage of physiological saline. Then, through the action of the first spring 22 and the second spring 23, the inner sheath of the resectoscope and the outer sheath of the resectoscope are pressed against the first sealing ring 1 in a direction away from each other, so that when the first sealing ring 1 is aged, the first sealing ring 1 can maintain the degree of tightness between the inner sheath of the resectoscope and the outer sheath of the resectoscope, further enhancing the sealing effect. The second sealing ring 3 is tightly combined with the wall of the perforated hole through the locking cone surface 31, effectively reducing the liquid from the gap between the operating handle and the electrode head. When the second sealing ring 3 is aged, the second sealing ring 3 can be adapted to maintain the sealing performance between the perforated hole and the electrode head of the resectoscope.

[0042] Embodiment 2 See also Figure 5 and Figure 6 The difference between the second embodiment of the present application and the first embodiment is that the sealing structure also includes a connecting seat 5, a sealing airbag 6 and an extrusion plate 7.

[0043] Among them, the connecting seat 5 includes a first connecting seat 51 and a second connecting seat 52. The first connecting seat 51 is arranged around the outer wall of the inner sheath of the electrosurgical resectoscope, and the first connecting seat 51 is fixedly installed in the first sealing groove; the second connecting seat 52 is arranged around the inner wall of the outer sheath of the electrosurgical resectoscope, and the second connecting seat 52 is fixedly installed in the second sealing groove.

[0044] A first connecting groove 511 is formed on the outer side wall of the first connecting seat 51, and a portion of the inner side of the first sealing ring 1 is snap-fitted into the first connecting groove 511; a second connecting groove 521 is formed on the inner side wall of the second connecting seat 52, and a portion of the outer side of the first sealing ring 1 is snap-fitted into the second connecting groove 521.

[0045] There are multiple sealing airbags 6 corresponding to the first connection seat 51 and the second connection seat 52, and the sealing airbags 6 are respectively embedded and fixed on the groove wall of the first connection groove 511 away from the groove opening and the groove wall of the second connection groove 521 away from the groove opening, and the sealing airbags 6 are made of rubber, silicone and other materials with elastic deformation ability. When air is supplied to the sealing airbags 6, the sealing airbags 6 expand into the corresponding first connection grooves 511 and second connection grooves 521 respectively.

[0046] The first connection seat 51 and the second connection seat 52 are respectively fixedly installed with air supply airbags 54, which correspond to the sealing airbags 6. The first connection seat 51 and the second connection seat 52 are respectively fixedly connected with connecting pipes 55, and the two ends of the connecting pipes 55 are respectively connected and fixed to the air supply airbags 54 and the sealing airbags 6.

[0047] The extrusion plate 7 is an annular plate structure, and the extrusion plate 7 includes a first extrusion plate 71 and a second extrusion plate 72. The first extrusion plate 71 is slidably mounted on the groove wall of the first connection groove 511 away from the jacket 21. The first sealing ring 1 pushes the first extrusion plate 71 to slide into the first connection seat 51. At this time, the first extrusion plate 71 squeezes the corresponding air supply airbag 54, so that the gas in the air supply airbag 54 flows into the corresponding sealing airbag 6. At this time, the sealing airbag 6 expands into the first connection groove 511 and wraps the inner peripheral side wall of the first sealing ring 1, filling the gap between the inner peripheral side wall of the first sealing ring 1 and the groove wall of the first connection groove 511. In addition, the sealing airbag 6 has a certain elastic deformation capacity. When the first sealing ring 1 shrinks and deforms due to aging, the over-expanded sealing airbag 6 can quickly fill the gap between the inner peripheral wall of the first sealing ring 1 and the groove wall of the first connection groove 511.

[0048] The second extrusion plate 72 is slidably mounted on the groove wall of the first connection groove 511 close to the jacket 21. The first sealing ring 1 pushes the second extrusion plate 72 to slide into the second connection seat 52. At this time, the second extrusion plate 72 squeezes the corresponding air supply airbag 54, so that the gas in the air supply airbag 54 flows into the corresponding sealing airbag 6. At this time, the sealing airbag 6 expands into the second connection groove 521 and wraps the outer peripheral side wall of the first sealing ring 1, filling the gap between the part of the outer peripheral side wall of the first sealing ring 1 and the groove wall of the second connection groove 521. In addition, the sealing airbag 6 has a certain elastic deformation ability. When the first sealing ring 1 shrinks and deforms due to aging, the over-expanded sealing airbag 6 can quickly fill the gap between the outer peripheral wall part of the first sealing ring 1 and the groove wall of the second connection groove 521.

[0049] At the same time, in order to facilitate the first sealing ring 1 to slide into the first connecting groove 511 and the second connecting groove 521, the extrusion plate 7 is inclined to form a guide surface 73, and the first sealing ring 1 slides on the guide surface 73 to reduce the resistance encountered by the first sealing ring 1 when entering the first connecting groove 511 and the second connecting groove 521.

[0050] The first connection seat 51 and the second connection seat 52 are respectively installed with a transmission seat 53, and there is a one-to-one correspondence between the transmission seat 53 and the connection tube 55, and a transmission cavity 531 is formed in the transmission seat 53. The connection tube 55 includes a first tube body 551 and a second tube body 552. The two ends of the first tube body 551 are respectively connected and fixed to the air supply airbag 54 and the transmission seat 53. When in use, the air supply airbag 54 and the transmission cavity 531 are connected through the first tube body 551. The two ends of the second tube body 552 are respectively fixedly connected to the transmission seat 53 and the sealing airbag 6. When in use, the transmission cavity 531 and the sealing airbag 6 are connected through the second tube body 552.

[0051] A blocking plate 532 is hinged in the transmission seat 53, and the area of ​​the blocking plate 532 is smaller than the area of ​​the wall of the transmission cavity 531 where the first tube body 551 is provided. The transmission seat 53 is provided with a control component 8, which is used to control the blocking plate 532 to block the tube mouth of the first tube body 551. The control component 8 includes a first magnet 81 and a second magnet 82, and the magnetic properties of the first magnet 81 and the second magnet 82 are opposite. Among them, the first magnet 81 is embedded and fixed on the side wall of the blocking plate 532 facing the tube mouth of the first tube body 551, and the second magnet 82 is embedded and fixed on the wall of the transmission cavity 531 and adjacent to the tube mouth of the first tube body 551. When the first magnet 81 abuts against the second magnet 82, the blocking plate 532 blocks the tube mouth of the first tube body 551 away from the air supply airbag 54, and the blocking plate 532 is not flipped under the action of gravity, limiting the airflow in the sealing airbag 6 from flowing back to the air supply airbag 54. When the squeezing plate 7 squeezes the air supply bag 54, the airflow in the air supply bag 54 pushes the blocking plate 532 to flip away from the first tube body 551 until it abuts against the side wall of the transmission cavity 531 facing the tube opening of the first tube body 551, so that the airflow can flow into the sealing air bag 6. Afterwards, when the airflow in the air supply bag 54 stops flowing into the transmission cavity 531, the first magnet 81 and the second magnet 82 are magnetically attracted to each other, controlling the blocking plate 532 to block the tube opening of the first tube body 551.

[0052] The first connection groove 511 is slidably provided with a power plate 4 on one side of the groove wall facing the first extrusion plate 71 and the second connection groove 521 is slidably provided with a power plate 4 on one side of the groove wall facing the second extrusion plate 72. The power plate 4 is a ring plate structure and can approach or move away from the extrusion plate 7. The power plate 4 is inclined with a sliding surface 41, and the first sealing ring 1 slides on the sliding surface 41, so as to reduce the resistance encountered by the first sealing ring 1 when entering the first connection groove 511 and the second connection groove 521.

[0053] The connecting seat 5 is provided with a driving assembly 9, and the driving assembly 9 includes a driving spring 91 and a driving rope 92. The driving rope 92 can be made of nylon material, so that the surface of the driving rope 92 is smooth. There are two driving ropes 92 and they correspond to the blocking plates 532 one by one. The two blocking plates 532 are slidably penetrated in the first connecting seat 51 and the second connecting seat 52 respectively. One end of the driving rope 92 is connected and fixed to the side of the blocking plate 532 facing away from the first tube body 551, and the other end is connected and fixed to the side of the power plate 4 away from the first sealing ring 1. The driving spring 91 is sleeved on the outer peripheral side of the driving rope 92 and corresponds one by one. The driving spring 91 is located in the connecting seat 5, and one end of the driving spring 91 abuts against the side of the power plate 4 away from the first sealing ring 1, and the other end abuts against the connecting seat 5.

[0054] When the first sealing ring 1 is separated from the first connecting groove 511, the driving spring 91 drives the corresponding power plate 4 to slide into the first connecting groove 511. At this time, the driving rope 92 pulls the corresponding blocking plate 532 away from the tube mouth of the first tube body 551, so that the corresponding sealing airbag 6 can be deformed and restored, and the airflow is squeezed back into the air supply airbag 54. Similarly, when the first sealing ring 1 is separated from the second connecting groove 521, the driving spring 91 drives the corresponding power plate 4 to slide into the second connecting groove 521. At this time, the driving rope 92 pulls the corresponding blocking plate 532 away from the tube mouth of the first tube body 551, so that the corresponding sealing airbag 6 can be deformed and restored, and the airflow is squeezed back into the air supply airbag 54. When the first sealing ring 1 is inserted into the first connecting groove 511 or the second connecting groove 521, the corresponding driving rope 92 is in a loose state.

[0055] At the same time, a connecting sealing ring 921 is provided on the sliding sleeve on the outer peripheral side of the driving rope 92. The connecting sealing ring 921 is located in the connecting seat 5 and is fixedly connected, which is beneficial to reduce the possibility of airflow leakage and prevent external pollutants from entering the interior of the connecting seat 5, thereby ensuring the cleanliness and sealing effect of the sealing system.

[0056] The implementation principle of a sealing structure for an electric resectoscope in the second embodiment of the present application is as follows: When the first sealing ring 1 is inserted into the first connection groove 511 and the second connection groove 521, the first sealing ring 1 pushes the extrusion plate 7 to squeeze the air supply airbag 54, so that the corresponding sealing airbag 6 expands into the first connection groove 511 and the second connection groove 521, respectively. At this time, the sealing airbag 6 wraps the outer peripheral side wall and the inner peripheral side wall of the first sealing ring 1, thereby improving the sealing effect of the first sealing ring 1. In addition, the sealing airbag 6 has a certain elastic deformation ability. When the first sealing ring 1 shrinks and deforms due to aging, the over-expanded sealing airbag 6 can quickly fill the gap between the first sealing ring 1 and the first connection groove 511 and the second connection groove 521.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sealing structure for a resectoscope, characterized in that: It comprises a first sealing ring (1) which is arranged around the outer wall of the inner sheath of the resectoscope, the first sealing ring (1) is located between the inner wall of the outer sheath of the resectoscope and the outer wall of the inner sheath of the resectoscope, the first sealing ring (1) is symmetrically arranged, and the water inlet of the inner sheath of the resectoscope is located between the first sealing rings (1); A spring clip (2), comprising a clip sleeve (21), a first spring (22) and a second spring (23); The jacket (21) is slidably mounted on the outer peripheral side wall of the inner sheath of the resectoscope, and a first spring groove (211) is formed at one end of the jacket (21) facing the outer sheath of the resectoscope, and the first spring (22) is arranged in the first spring groove (211), and the first spring (22) pushes the outer sheath of the resectoscope away from the jacket (21); A second spring groove (212) is formed at one end of the jacket (21) facing away from the outer sheath of the resectoscope, and the second spring (23) is installed in the second spring groove (212). The second spring (23) pushes the inner sheath of the resectoscope away from the jacket (21); The second sealing ring (3) is arranged on the operating handle of the resectoscope. The operating handle of the resectoscope is formed with a through hole for the electrode blade to pass through. The second sealing ring (3) is located between the outer wall of the electrode blade and the wall of the through hole. The outer peripheral side wall of the second sealing ring (3) is formed with a locking cone surface (31).

2. A sealing structure for a resectoscope according to claim 1, characterized in that: The outer walls of the first sealing ring (1) and the second sealing ring (3) are provided with a nano waterproof coating.

3. A sealing structure for a resectoscope according to claim 1, characterized in that: The sealing structure also includes a connecting seat (5), a sealing airbag (6) and an extrusion plate (7); The connecting seat (5) comprises a first connecting seat (51) and a second connecting seat (52); the first connecting seat (51) is arranged around the outer wall of the inner sheath of the resectoscope; the outer peripheral side wall of the first connecting seat (51) is formed with a first connecting groove (511) for the first sealing ring (1) to be inserted into; The second connection seat (52) is arranged around the inner peripheral side wall of the outer sheath of the resectoscope, and the second connection seat (52) is formed with a second connection groove (521) for the first sealing ring (1) to be inserted into; The sealing airbags (6) are respectively arranged on the groove wall of the first connecting groove (511) away from the groove opening and the groove wall of the second connecting groove (521) away from the groove opening; An air supply bag (54) is arranged in the connection seat (5), and a connection pipe (55) is arranged in the connection seat (5) for connecting the air supply bag (54) and the sealing bag (6); The extrusion plate (7) comprises a first extrusion plate (71) and a second extrusion plate (72); the first extrusion plate (71) is slidably disposed on a groove wall of the first connecting groove (511) away from the jacket (21); The first sealing ring (1) pushes the first extrusion plate (71) to squeeze the corresponding air supply airbag (54), and at this time the sealing airbag (6) expands into the first connecting groove (511) and wraps around the inner peripheral side wall of the first sealing ring (1); The second extrusion plate (72) is slidably disposed on a groove wall of the second connecting groove (521) close to one side of the jacket (21), and the first sealing ring (1) pushes the second extrusion plate (72) to squeeze the corresponding air supply airbag (54), at which time the corresponding sealing airbag (6) expands into the second connecting groove (521) and wraps around the outer peripheral side wall of the first sealing ring (1).

4. A sealing structure for a resectoscope according to claim 3, characterized in that: The extrusion plate (7) is inclined to form a guide surface (73) for guiding the first sealing ring (1) to enter the first connecting groove (511) and the second connecting groove (521).

5. The sealing structure for a resectoscope according to claim 3, characterized in that: A transmission seat (53) is provided in the connection seat (5), and a transmission cavity (531) is formed in the transmission seat (53); The connecting tube (55) comprises a first tube body (551) and a second tube body (552), the first tube body (551) connecting the air supply airbag (54) and the transmission chamber (531), and the second tube body (552) connecting the transmission chamber (531) and the sealing airbag (6); A blocking plate (532) is hingedly connected in the transmission seat (53), and the transmission seat (53) is provided with a control component (8) for controlling the blocking plate (532) to block the pipe opening of the first pipe body (551); When the extrusion plate (7) squeezes the air supply airbag (54), the blocking plate (532) flips away from the first tube body (551).

6. A sealing structure for a resectoscope according to claim 5, characterized in that: The control component (8) comprises a first magnet (81) and a second magnet (82) having opposite magnetic properties, the first magnet (81) being arranged on a side of the blocking plate (532) facing the first tube body (551), and the second magnet (82) being arranged on the transmission seat (53); When the first magnet (81) abuts against the second magnet (82), the blocking plate (532) blocks the tube opening of the first tube body (551) on the side away from the air supply bag (54).

7. A sealing structure for a resectoscope according to claim 6, characterized in that: The connection seat (5) is slidably provided with a power plate (4) which corresponds to and is arranged opposite to the extrusion plate (7) in a one-to-one manner, and the connection seat (5) is provided with a driving assembly (9); When the first sealing ring (1) is separated from the first connecting groove (511), the driving component (9) drives the power plate (4) to slide into the first connecting groove (511), and at this time, the driving component (9) drives the blocking plate (532) to move away from the first tube body (551); When the first sealing ring (1) is separated from the second connecting groove (521), the driving component (9) drives the power plate (4) to slide into the second connecting groove (521), and at this time, the driving component (9) drives the blocking plate (532) to move away from the first tube body (551).

8. A sealing structure for a resectoscope according to claim 7, characterized in that: The driving assembly (9) comprises a driving spring (91) and a driving rope (92); The driving rope (92) is slidably inserted into the connecting seat (5), one end of the driving rope (92) is connected to the side of the blocking plate (532) facing away from the first tube body (551), and the other end is connected to the power plate (4); The driving spring (91) is sleeved on the outer peripheral side of the driving rope (92) and is located in the connecting seat (5); one end of the driving spring (91) abuts against the power plate (4), and the other end abuts against the connecting seat (5).

9. A sealing structure for a resectoscope according to claim 8, characterized in that: A connection sealing ring (921) is provided on the outer peripheral side of the driving rope (92), and the connection sealing ring (921) is located in the connection seat (5).

10. A sealing structure for a resectoscope according to claim 7, characterized in that: The power plate (4) is inclined to have a sliding surface (41) for the first sealing ring (1) to slide.

Images