Hysteroscope uterine submucosal myoma detacher

Abstract

The invention relates to the field of myoma stripping instruments, and discloses a hysteroscope uterine submucosa myoma stripper which comprises a handle, a controller and a power source, a catheter is arranged at one end of the handle, a smashing head is arranged at one end of the catheter, a movable covering mechanism is arranged on the outer side of the smashing head, and the movable covering mechanism is arranged on the outer side of the handle. The movable covering mechanism is used for clamping and fixing the myoma and then is matched with the crushing head to stably crush the myoma; the movable covering mechanism comprises a plurality of cover plates, one ends of the cover plates are movably connected to the guide pipe, and the cover plates are distributed in the circumferential direction; and the driving assembly is used for driving the plurality of cover plates to realize expansion or contraction actions. According to the myoma crushing device, the movable covering mechanism is arranged, so that the process of covering and wrapping the crushing head and clamping myoma for crushing can be realized according to needs, and compared with adverse consequences caused by overflow of myoma crushing by a direct method, the myoma crushing device is more reasonable in treatment of myoma tissues and higher in safety.

Description

Technical Field

[0001] The invention relates to the field of myoma stripping instruments, and in particular to a hysteroscopic submucosal myoma stripper. Background Art

[0002] Uterine fibroids, as a benign tumor mainly composed of smooth muscle and connective tissue, mainly occur in women aged 30 to 50, but are relatively rare in women under 20. In most cases, this tumor is not accompanied by significant symptoms, or only shows mild symptoms. Its cause is not yet fully understood, but it is generally believed to be closely related to the level of sex hormones in women, so it is considered a hormone-dependent disease. It is worth noting that even after surgical removal, uterine fibroids still have a certain risk of recurrence.

[0003] Among the methods for treating uterine fibroids, uterine fibroid dissection is a commonly used method. After dissection of the fibroids, the broken fibroid tissue is removed with a uterine crusher, which greatly prolongs the operation time and increases the amount of bleeding. At the same time, the broken fibroid tissue is inevitably missed or falls off during removal, leading to subsequent fibroid implantation in the uterus. Therefore, how to achieve the fragmentation of fibroid tissue while minimizing the possibility of residual fibroid tissue implantation is an urgent problem to be solved. Summary of the invention

[0004] The purpose of the present invention is to provide a hysteroscopic submucosal myoma stripper to solve the technical problem of how to achieve fragmentation of myoma tissue while minimizing the risk of residual myoma tissue and implantation.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A hysteroscopic submucosal myoma stripper comprises a handle, a controller and a power supply, wherein a catheter is arranged at one end of the handle, a crushing head is arranged at one end of the catheter, and a movable covering mechanism is arranged on the outer side of the crushing head, wherein the movable covering mechanism is used to clamp and fix the myoma and then cooperate with the crushing head to stably crush the myoma; the movable covering mechanism comprises:

[0007] A plurality of cover plates, one end of each of the cover plates being movably connected to the conduit, and the plurality of cover plates being distributed along the circumferential direction;

[0008] The driving assembly is used to drive the multiple cover plates to achieve expansion or contraction.

[0009] Further, the drive assembly includes a collar;

[0010] The collar is sleeved on the outer ring of the catheter, a permanent magnetic ring is embedded and connected on the side of the collar facing the handle, an electromagnetic ring is also fixedly arranged on the outer ring of the catheter, and a distance is arranged between the electromagnetic ring and the crushing head;

[0011] One end of the cover plate is hinged on the side end of the ring, and a slide groove is arranged on the inner side surface of the cover plate, the depth of the slide groove gradually becomes shallower toward one side of the ring, and a protrusion corresponding to the slide groove is also arranged on the side end of the ring; a connecting spring is also arranged between the ring and the electromagnetic ring, and the connecting spring is made of plastic.

[0012] Furthermore, the plurality of cover plates are cylindrical structures with a hollow interior in the retracted state.

[0013] Furthermore, the protrusion is configured as an inverted T-shaped structure, the slide groove is a T-shaped groove, and the slide groove cooperates with the protrusion.

[0014] Furthermore, a control component is also provided on the outer ring of the sleeve, and the control component can control the opening angle of the cover plate according to the size of the fibroid.

[0015] Furthermore, the control component includes:

[0016] An extrusion strip is slidably arranged on the inner side wall of the conduit, and the side ends of the extrusion strip are arranged with chamfered angles. A plurality of through grooves are arranged on the inner side wall of the conduit above the extrusion strip at intervals, and a stopper is slidably and sealably connected in the through groove. A limiting plate is arranged on one side of the bottom end of the through groove, and the bottom end of the stopper is arranged as a downward probe. An electric push rod is arranged on one side of the extrusion strip, and the end of the electric push rod is fixedly connected to the end of the extrusion strip away from the electromagnetic ring.

[0017] Furthermore, a sealing layer is provided at the end of the cover plate, and a suction module is provided in the conduit, and the suction module is used to extract the fibroid tissue after being crushed by the crushing head. The suction module includes:

[0018] A straw is arranged in the conduit, one end of the straw is directly opposite to the crushing head, and the other end is connected to an external suction pump, and the crushing head and the suction pump are started and stopped synchronously.

[0019] Furthermore, an auxiliary cutting component is also provided on the cover plate, which is used to perform auxiliary cutting action on the fibroid at the end of the cover plate;

[0020] The auxiliary cutting mechanism includes a groove, a groove is provided at the end of the cover plate, an auxiliary cutter is slidingly and sealingly connected in the groove, a wire groove is provided inside the auxiliary cutter, the cover plate and the ring, a capillary is arranged in the wire groove, one end of the capillary is conductively connected to the groove, and the other end is conductively connected to an embedded groove provided on the side end of the ring, and the thickness of the permanent magnet ring is greater than the depth of the embedded groove.

[0021] Beneficial effects of the present invention:

[0022] (1) The present invention provides a movable covering mechanism to partially shield the pulverizing head, which can prevent the pulverizing head from damaging the inner wall of the uterus when not in operation. On the other hand, the fibroid can be clamped and pulverized inside the movable covering mechanism. Compared with the method of direct naked pulverization, the pulverized fibroid tissue is left inside the movable covering mechanism as much as possible, which can significantly reduce the probability of fibroid tissue being left in other parts of the uterus and implanting;

[0023] (2) The present invention controls the opening angle of the cover plate by setting a control component, so that it can be suitable for fibroids of different sizes, and further achieve the best possible clamping effect on fibroids of different specifications; the electric push rod is extended to push the extrusion bar to move to one side. When the top surface of the extrusion bar encounters the downward probe part, the downward probe part and the connected stopper are pushed upward to limit the free fall of the downward probe part. The top of the stopper protrudes from the outside of the ring and extends into the spring coil of the connecting spring, so that the effective number of coils of the connecting spring is limited, and further the stretching distance of the connecting spring is reduced, the displacement distance of the ring and the cover plate is shortened, and the opening angle of the cover plate end is also reduced; similarly, the greater the displacement distance of the extrusion bar to one side, the smaller the opening angle of the cover plate, and vice versa, the larger the opening angle of the cover plate. Through the above technical scheme, the opening angle of the cover plate can be controlled in advance to achieve the purpose of adapting to the specifications of the fibroid and realize an adaptive clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is an overall schematic diagram of the present invention;

[0026] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0027] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the control component in the present invention.

[0029] Description of the drawings: 1. handle; 2. catheter; 3. crushing head; 4. movable covering mechanism; 41. cover plate; 42. drive assembly; 421. collar; 422. permanent magnet ring; 423. electromagnetic ring; 424. slide groove; 425. protrusion; 426. connecting spring; 43. control assembly; 431. extrusion strip; 432. chamfer; 433. through groove; 434. stopper; 435. lower probe; 436. electric push rod; 437. sealing layer; 44. suction module; 441. suction tube; 442. suction pump; 45. auxiliary cutting assembly; 451. groove; 452. auxiliary cutting knife; 453. capillary; 454. embedded groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 -- Figure 4 As shown, the present invention is a hysteroscopic submucosal myoma stripper, comprising a handle 1, a controller and a power supply, one end of the handle 1 is provided with a catheter 2, one end of the catheter 2 is provided with a crushing head 3, and the outer side of the crushing head 3 is provided with a movable covering mechanism 4, the movable covering mechanism 4 is used to clamp and fix the myoma, and then cooperate with the crushing head 3 to stably crush the myoma;

[0032] The movable covering mechanism 4 comprises:

[0033] A plurality of cover plates 41, one end of each of the cover plates 41 is movably connected to the conduit 2, and the plurality of cover plates 41 are distributed along the circumferential direction;

[0034] The driving assembly 42 is used to drive the multiple cover plates 41 to achieve expansion or contraction.

[0035] The driving assembly 42 includes a collar 421;

[0036] The collar 421 is sleeved on the outer ring of the catheter 2, and a permanent magnetic ring 422 is embedded and connected to the side of the collar 421 facing the handle 1. An electromagnetic ring 423 is also fixedly arranged on the outer ring of the catheter 2, and a distance is arranged between the electromagnetic ring 423 and the crushing head 3;

[0037] One end of the cover plate 41 is hinged on the side end of the ring 421, and a slide groove 424 is provided on the inner side surface of the cover plate 41. The depth of the slide groove 424 gradually becomes shallower toward one side of the ring 421, and a protrusion 425 corresponding to the slide groove 424 is also provided on the side end of the ring 421; a connecting spring 426 is also provided between the ring 421 and the electromagnetic ring 423, and the connecting spring 426 is made of plastic.

[0038] In the present embodiment, in order to reduce the probability of the fibroid tissue falling during the process of removing and crushing, a movable covering mechanism 4 is used to partially cover the crushing head 3. On the one hand, it can prevent the crushing head 3 from damaging the inner wall of the uterus when not in operation. On the other hand, the fibroid can be clamped and crushed inside the movable covering mechanism 4. Compared with the direct naked crushing method, the crushed fibroid tissue is kept inside the movable covering mechanism 4 as much as possible, which can significantly reduce the probability of the fibroid tissue remaining in other parts of the uterus and implanting. Specifically, in the process of entering the uterus, the electromagnetic ring 423 remains in a power-off state, and under the elastic force of the connecting spring 426, the ring 421 and the connected cover plate 41 are in an initial state close to the electromagnetic ring 423. At this time, the depth of the slide grooves 424 in the multiple cover plates 41 cooperates with the protrusions 425, so that the multiple cover plates 41 are in a contracted and closed state. And enter in the smallest state, which is convenient for the subsequent operation of crushing and peeling off the tumor; when the position of the tumor is reached, the electromagnetic ring 423 is energized to obtain magnetism, and the electromagnetic ring 423 strongly repels the permanent magnet ring 422, overcoming the elastic force of the connecting spring 426, allowing the ring 421 and the connected cover plate 41 to move away from the electromagnetic ring 423, so that the protrusion 425 cooperates with the shallow part of the slide groove 424, and the cover plate 41 is passively lifted to expand outward until it moves into place, and multiple cover plates 41 together form an open structure, and then the fibroid is included in the space after the cover plate 41 is opened, and then the power is quickly turned off or the electromagnetic ring 423 is controlled to perform strong adsorption, so that the cover plate 41 is closed again, and then the fibroid is clamped in the space formed by the cover plate 41, and the crushing head 3 is started to perform the crushing operation until the entire fibroid is crushed. At this time, the present invention is directly taken out to achieve the peeling action of the fibroid.

[0039] The plurality of cover plates 41 are in a hollow cylindrical structure in the retracted state.

[0040] The protrusion 425 is configured as an inverted T-shaped structure, and the slide groove 424 is a T-shaped groove, and the slide groove 424 cooperates with the protrusion 425. In this embodiment, the inverted T-shaped structure and the T-shaped groove are configured to restrict the cover plate 41 and prevent interference caused by excessive deflection of the cover plate 41.

[0041] A control component 43 is also provided on the outer ring of the sleeve ring 421, and the control component 43 can control the opening angle of the cover plate 41 according to the size of the fibroid.

[0042] The control component 43 includes:

[0043] An extrusion strip 431 is slidably arranged on the inner wall of the conduit 2, and the side ends of the extrusion strip 431 are each provided with a chamfer 432. A plurality of through grooves 433 are spaced apart on the inner wall of the conduit 2 above the extrusion strip 431, and a stopper 434 is slidably and sealedly connected in the through groove 433. A limiting plate is arranged on one side of the bottom end of the through groove 433, and the bottom end of the stopper 434 is arranged as a downward probe 435. An electric push rod 436 is arranged on one side of the extrusion strip 431, and the end of the electric push rod 436 is fixedly connected to one end of the extrusion strip 431 away from the electromagnetic ring 423.

[0044] In this embodiment, the opening angle of the cover plate 41 is controlled by setting the control component 43, so that it can be suitable for fibroids of different sizes, and then the fibroids of different specifications can be clamped as much as possible; specifically, the electric push rod 436 is extended to push the squeezing bar 431 to move to one side. When the top surface of the squeezing bar 431 encounters the lower probe part 435, the lower probe part 435 and the connected stopper 434 are pushed upward, and the lower probe part 435 is restricted from falling freely. The top of the stopper 434 protrudes from the outside of the ring 421 and extends into the connecting spring. The spring coil of the spring 426 limits the effective number of turns of the connecting spring 426, thereby reducing the stretching distance of the connecting spring 426, shortening the displacement distance of the collar 421 and the cover plate 41, and reducing the opening angle of the end of the cover plate 41. Similarly, the greater the displacement distance of the extrusion strip 431 to one side, the smaller the opening angle of the cover plate 41, and vice versa. Through the above technical solution, the opening angle of the cover plate 41 can be controlled in advance to achieve the purpose of adapting to the specifications of the fibroids and to realize an adaptive clamping effect.

[0045] A sealing layer 437 is further provided at the end of the cover plate 41 , and a suction module 44 is provided in the conduit 2 , and the suction module 44 is used to extract the fibroid tissue after being crushed by the crushing head 3 .

[0046] The suction module 44 comprises:

[0047] A suction pipe 441 is arranged in the conduit 2, one end of the suction pipe 441 is directly opposite to the crushing head 3, and the other end is connected to an external suction pump 442, and the crushing head 3 and the suction pump 442 are started and stopped synchronously.

[0048] In this embodiment, in order to prevent the fibroid to be crushed from being too large, which makes it difficult to crush or peel it at one time, a suction module 44 is provided. The crushing head 3 and the suction pump 442 are started synchronously, so that the negative pressure generated is used to suck the synchronously crushed fibroid tissue, and it is extracted in time after passing through the suction tube 441; after the tumor tissue inside the cover plate 41 is crushed and extracted, the expansion and contraction action of the previous part can be repeated again, thereby achieving the effect of crushing larger fibroids multiple times without causing excess fibroid tissue to overflow, and the crushing head 3 can also be cleaned to a certain extent to prevent the fibroid tissue from being attached to the crushing head 3 and affecting subsequent crushing; it should be noted that the crushing head 3 adopts the existing technology, which can achieve the purpose of crushing the fibroid, and will not be elaborated here. At the same time, the space inside the cover plate 41 after assembly is in a conductive state with the catheter 2, so that the crushed tumor tissue is extracted from the suction tube 441 as much as possible, reducing the adverse effects caused by the overflow.

[0049] The cover plate 41 is also provided with an auxiliary cutting component 45 for performing auxiliary cutting on the fibroid at the end of the cover plate 41;

[0050] The auxiliary cutting mechanism includes a groove 451, a groove 451 is provided at the end of the cover plate 41, an auxiliary cutter 452 is slidably and sealedly connected in the groove 451, a wire groove is provided inside the cover plate 41 and the ring 421 of the auxiliary cutter 452, a capillary 453 is arranged in the wire groove, one end of the capillary 453 is conductively connected to the groove 451, and the other end is conductively connected to the embedded groove 454 provided on the side end of the ring 421, and the thickness of the permanent magnet ring 422 is greater than the groove depth of the embedded groove 454.

[0051] In this embodiment, by setting up the auxiliary cutting component 45, the gas in the groove 451 and the embedded groove 454 can be in a balanced state in the initial state. Only when the movable covering mechanism 4 is working and the electromagnetic ring 423 is energized, the repulsive force generated by it is used to first push the permanent magnetic ring 422 to move toward the inside of the embedded groove 454, so that excess gas enters the groove 451, and then pushes the auxiliary cutting knife 452 to extend out of the end of the cover plate 41 to perform auxiliary cutting on the fibroids in the clamping state. In summary, when the electromagnetic ring 423 switches between the repulsion and adsorption states, it can indirectly prompt the auxiliary cutting knife 452 to work, so that the fibroid tissue is located as much as possible inside the cover plate 41, so as to achieve the purpose of crushing the internal fibroid tissue in the space inside the cover plate 41, and further reduce the possibility of fibroid tissue overflow.

[0052] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A hysteroscopic submucosal myoma dissector, comprising a handle (1), a controller and a power supply, wherein one end of the handle (1) is provided with a catheter (2), and one end of the catheter (2) is provided with a crushing head (3), characterized in that: A movable covering mechanism (4) is arranged on the outer side of the crushing head (3), and the movable covering mechanism (4) is used to clamp and fix the fibroid and then cooperate with the crushing head (3) to stably crush the fibroid; The movable covering mechanism (4) comprises: A plurality of cover plates (41), one end of each of the cover plates (41) being movably connected to the conduit (2), and the plurality of cover plates (41) being distributed along the circumferential direction; The driving assembly (42) is used to drive the plurality of cover plates (41) to achieve expansion or contraction.

2. The hysteroscopic submucous myoma dissector according to claim 1, characterized in that: The drive assembly (42) comprises a collar (421); The collar (421) is sleeved on the outer ring of the catheter (2); a permanent magnetic ring (422) is embedded and connected to the side of the collar (421) facing the handle (1); an electromagnetic ring (423) is also fixedly arranged on the outer ring of the catheter (2); and a distance is arranged between the electromagnetic ring (423) and the crushing head (3); One end of the cover plate (41) is hinged on the side end of the ring (421), and a slide groove (424) is arranged on the inner side surface of the cover plate (41), and the depth of the slide groove (424) gradually becomes shallower toward one side of the ring (421), and a protrusion (425) corresponding to the slide groove (424) is also arranged on the side end of the ring (421); a connecting spring (426) is also arranged between the ring (421) and the electromagnetic ring (423), and the connecting spring (426) is made of plastic material.

3. The hysteroscopic submucous myoma dissector according to claim 2, characterized in that: The plurality of cover plates (41) are in a cylindrical structure with a hollow interior in a retracted state.

4. The hysteroscopic submucous myoma dissector according to claim 3, characterized in that: The protrusion (425) is configured as an inverted T-shaped structure, the slide groove (424) is a T-shaped groove, and the slide groove (424) matches the protrusion (425).

5. The hysteroscopic submucous myoma dissector according to claim 2, characterized in that: A control component (43) is also provided on the outer ring of the sleeve ring (421), and the control component (43) can control the opening angle of the cover plate (41) according to the size of the fibroid.

6. The hysteroscopic submucous myoma dissector according to claim 5, characterized in that: The control component (43) comprises: An extrusion strip (431) is slidably arranged on the inner side wall of the conduit (2), and the side ends of the extrusion strip (431) are all provided with chamfered corners (432). A plurality of through grooves (433) are spaced apart on the inner side wall of the conduit (2) above the extrusion strip (431), and a stopper (434) is slidably and sealedly connected in the through groove (433). A limiting plate is arranged on one side of the bottom end of the through groove (433), and the bottom end of the stopper (434) is arranged as a downward probe (435). An electric push rod (436) is arranged on one side of the extrusion strip (431), and the end of the electric push rod (436) is fixedly connected to one end of the extrusion strip (431) away from the electromagnetic ring (423).

7. The hysteroscopic submucous myoma dissector according to claim 6, characterized in that: The end of the cover plate (41) is further provided with a sealing layer (437). A suction module (44) is provided in the conduit (2). The suction module (44) is used to extract the fibroid tissue after being crushed by the crushing head (3); the suction module (44) comprises: A suction pipe (441), wherein the suction pipe (441) is arranged in the conduit (2), one end of the suction pipe (441) is directly opposite to the crushing head (3), and the other end is connected to an external suction pump (442), and the crushing head (3) and the suction pump (442) are started and stopped synchronously.

8. The hysteroscopic submucous myoma dissector according to claim 7, characterized in that: The cover plate (41) is also provided with an auxiliary cutting component (45) for performing an auxiliary cutting action on the fibroid at the end of the cover plate (41); The auxiliary cutting mechanism comprises a groove (451), the end of the cover plate (41) is provided with a groove (451), an auxiliary cutting knife (452) is slidably and sealedly connected in the groove (451), the auxiliary cutting knife (452) and the cover plate (41) and the sleeve ring (421) are provided with a wire groove, a capillary (453) is arranged in the wire groove, one end of the capillary (453) is conductively connected to the groove (451), and the other end is conductively connected to an embedded groove (454) provided on the side end of the sleeve ring (421), and the thickness of the permanent magnet ring (422) is greater than the groove depth of the embedded groove (454).

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