Coated uterus rotary cutter

Abstract

The utility model discloses a coating type uterus rotary cutter which comprises a coating assembly and a working rod which are arranged along an axis. The coating assembly comprises an elastic sleeve and at least two movable arms; the movable arm is hinged with the working rod; the movable arms are circumferentially arranged by taking the axis of the working rod as the center; the elastic sleeve is wrapped outside the movable arm; a control assembly is arranged on the working rod; the control assembly comprises a controller and a tractor; one end of the tractor is fixedly connected with the controller, and the other end is fixedly connected with the movable arm; and the controller slides on the outer wall of the working rod. In the operation process, the wrapping assembly and the working rod reach the body of a patient along an endoscope channel, then the control assembly drives the wrapping assembly to be opened and wrap the hysteromyoma, and then the rotary cutter is driven by the driving assembly to rotate and cut the hysteromyoma, and cut hysteromyoma fragments are contained in the working rod; uterine myoma fragments are prevented from being left in the body of a patient, and the treatment effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a coated uterine morecellation device. BACKGROUND

[0002] Uterine fibroids are benign growths from uterine smooth muscle tissue. The disease mainly affects women aged 30 to 50 years, although it is less common in groups under 20 years of age, but it can still occur. The potential patient may have no obvious symptoms, but the disease is found through physical examination. The classification of uterine fibroids is mainly based on the relationship between myoma and uterine wall, such as intramural fibroids, subserosal fibroids and submucosal fibroids, etc., among which intramural fibroids are the most common, with an incidence of 60% to 70%.

[0003] Most uterine fibroid patients have no symptoms, and some patients show symptoms including abnormal menstruation, increased leukorrhea, abdominal mass and lower abdominal distension. When myoma compresses the bladder and rectum, it can cause frequent urination, dysuria, pain during defecation and constipation.

[0004] The uterine morecellation device is a handheld device used by medical personnel to perform uterine and uterine fibroid resection surgery under the cooperation of an endoscope. The existing uterine morecellation device can pull the uterine fibroids into its interior and cut them to ensure that the cut uterine fibroid fragments can be completely collected inside the uterine morecellation device to prevent them from being left in the patient's body. However, due to the size limitation of the endoscope, the uterine morecellation device that enters the patient's body cannot pull the uterine fibroids into its interior. This makes it impossible for the cut uterine fibroid fragments to be completely stored inside the uterine morecellation device during the cutting process, resulting in the uterine fibroid fragments being left in the patient's body, increasing the risk of recurrence and uterine fibroid fragment dissemination, and reducing the treatment effect.

[0005] The utility model provides a coated uterine morecellation device aiming at the above problems. UTILITY MODEL CONTENTS

[0006] In order to overcome the problems raised in the background art, the utility model provides a coated uterine morecellation device.

[0007] A coated uterine morecellation device comprises a coating assembly and a working rod arranged along an axis; the coating assembly comprises an elastic sleeve and at least two movable arms; the movable arms are hinged to the working rod; the movable arms are arranged in a circle with the axis of the working rod as the center; the elastic sleeve is wrapped outside the movable arms; the working rod is provided with a control assembly; the control assembly comprises a controller and a tractor; one end of the tractor is fixedly connected with the controller, and the other end is fixedly connected with the movable arm; the controller slides on the outer wall of the working rod.

[0008] Further, the elastic sleeve is provided with a working port at one end away from the working rod; the diameter of the working port is smaller than the maximum diameter of the elastic sleeve.

[0009] Further, the middle part of the movable arm is connected with the tractor.

[0010] Further, the movable arm comprises a first rotating arm and a second rotating arm; one end of the first rotating arm is hinged with the working rod, and the other end is hinged with the second rotating arm; the second rotating arm is connected with the tractor.

[0011] Further, the working rod is internally provided with a rotary cutter; one end of a driving assembly provided at one end of the working rod away from the covering assembly is inserted into the interior of the working rod and detachably connected with the rotary cutter.

[0012] Further, the rotary cutter comprises a rotating roller and a cutting end; one end of the rotating roller is detachably connected with the driving assembly; the cutting end is fixed at one end of the rotating roller away from the driving assembly.

[0013] Further, one end of the rotating roller away from the driving assembly is gradually tapered.

[0014] Further, the working rod is provided with a guide structure; the controller makes reciprocating linear motion along the guide structure.

[0015] Further, the controller is wrapped outside the guide structure; the tractor is fixedly connected with the controller after passing through the guide structure.

[0016] Further, the working rod is provided with a suction port; one end of the suction port is fixedly connected with the working rod.

[0017] The utility model discloses the beneficial effects of:

[0018] 1, the covering assembly can be opened under the drive of the control assembly, in the operation process, the covering assembly and the working rod reach the patient's body along the endoscope channel, then the control assembly drives the covering assembly to open and wrap outside the uterine fibroids, then the rotary cutter rotates and cuts the uterine fibroids under the drive of the driving assembly and stores the cut uterine fibroids fragments in the interior of the working rod, prevents the uterine fibroids fragments from remaining in the patient's body, and enhances the treatment effect.

[0019] 2, the covering assembly is opened and wrapped outside the uterine fibroids first, then the rotary cutter is opened and cuts the uterine fibroids, which can prevent the cut uterine fibroids from splashing into the patient's abdominal cavity and prevent the uterine fibroids from spreading. DRAWINGS

[0020] Figure 1 It is a perspective view of a covering type uterine rotary cutter.

[0021] Figure 2 It is a front view of the coated uterine resector of the utility model;

[0022] Figure 3 It is Figure 2 A-A sectional view of the utility model;

[0023] Figure 4 It is Figure 3 The partial enlarged view of the coating assembly in

[0024] Figure 5 It is Figure 3 The partial enlarged view of the control assembly in

[0025] Figure 6 It is Figure 3 The partial enlarged view of the driving assembly in

[0026] In the figure, 1, control assembly; 11, controller; 111, slider; 12, tractor; 2, working rod; 21, guide structure; 211, groove; 3, coating assembly; 31, elastic sleeve; 32, movable arm; 321, first rotating arm; 322, second rotating arm; 4, suction port; 5, driving assembly; 51, shell; 52, holding end; 53, driving motor; 531, output shaft; 54, rotary cutter; 541, rotating roller; 542, cutting end. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The utility model can also be implemented or applied through other different specific embodiments, and the following embodiments and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] In the description of the utility model, it is understood that the terms "center", "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified.

[0030] As shown in Figures 1-6 A covered type of uterine rotary resectoscope, which comprises a covering assembly 3 and a working rod 2 arranged along an axis; the covering assembly 3 comprises an elastic sleeve 31 and at least two movable arms 32; the movable arms 32 are hinged to the working rod 2; the movable arms 32 are arranged in a circumferential manner around the axis of the working rod 2; the elastic sleeve 31 is wrapped outside the movable arms 32; the working rod 2 is provided with a control assembly 1; the control assembly 1 comprises a controller 11 and a puller 12; one end of the puller 12 is fixedly connected to the controller 11, and the other end is fixedly connected to the movable arm 32; the controller 11 slides on the outer wall of the working rod 2. The puller 12 corresponds to the movable arm 32 one by one; each puller 12 can drive different movable arms 32 to move.

[0031] Specifically, four movable arms 32 are arranged. The four movable arms 32 are arranged in a circumferential manner around the axis of the working rod 2. The same number of pullers 12 as the movable arms 32 are arranged inside the working rod 2.

[0032] The puller 12 is in a wire-like structure, such as a steel wire, a guide wire, etc.

[0033] The covering assembly 3 can be opened under the driving of the control assembly 1; during the operation, the covering assembly 3 and the working rod 2 are sent into the patient's body along the endoscope channel, and then the control assembly 1 drives the covering assembly 3 to open and wrap outside the uterine fibroids, and then the rotary cutter 54 rotates and cuts the uterine fibroids under the driving of the driving assembly 5 and stores the cut uterine fibroid fragments in the inside of the working rod 2, preventing the uterine fibroid fragments from remaining in the patient's body and enhancing the treatment effect.

[0034] Further, an operating port is arranged at the end of the elastic sleeve 31 away from the working rod 2; the diameter of the operating port is smaller than the maximum diameter of the elastic sleeve 31. During the opening process of the covering assembly 3 driven by the control assembly 1, the operating port gradually expands until the operating port can accommodate the uterine fibroids, and then the covering assembly 3 is wrapped outside the uterine fibroids and the rotary cutting is started.

[0035] Further, the middle part of the movable arm 32 is connected to the puller 12 to ensure that the puller 12 can drive the movable arm 32 to rotate.

[0036] Specifically, the outer side wall of the movable arm 32 is connected with the tractor 12, so that the tractor 12 can drive the movable arm 32 to rotate away from the axis of the working rod 2, and the covering assembly 3 can be opened.

[0037] In some embodiments of the present application, as shown in Figures 1-6 The movable arm 32 comprises a first rotating arm 321 and a second rotating arm 322; one end of the first rotating arm 321 is hinged with the working rod 2, and the other end is hinged with the second rotating arm 322; the second rotating arm 322 is connected with the tractor 12.

[0038] When the covering assembly 3 is opened by the control assembly 1, the first rotating arms 321 rotate away from the axis of the working rod 2, so that the cross-sectional area of the barrel-shaped structure formed by the second rotating arms 322 increases, and finally a cavity with a single working port is formed, at this time the uterine fibroids can enter the cavity through the working port, and the uterine fibroids are wrapped.

[0039] The purpose of this design is to form a cylindrical space after the covering assembly 3 is opened to accommodate large uterine fibroids.

[0040] In the illustrative embodiments of the present application, as shown in Figures 1-6 The interior of the working rod 2 is provided with a rotary cutter 54; one end of the working rod 2 away from the covering assembly 3 is provided with a driving assembly 5; one end of the driving assembly 5 is inserted into the interior of the working rod 2 and detachably connected with the rotary cutter 54.

[0041] When the covering assembly 3 is wrapped outside the uterine fibroids, the driving assembly 5 is started to drive the rotary cutter 54 to rotate to gradually remove the uterine fibroids.

[0042] Specifically, the rotary cutter 54 comprises a rotating roller 541 and a cutting end 542; one end of the rotating roller 541 is detachably connected with the driving assembly 5; the cutting end 542 is fixed at the end of the rotating roller 541 away from the driving assembly 5.

[0043] Preferably, the cutting end 542 is a spiral blade, and the rotating direction of the cutting end 542 is the same as the spiral direction. The purpose of this design is:

[0044] 1. The spiral cutting of the uterine fibroids prevents the residual of the uterine fibroids and achieves the effect of complete removal.

[0045] 2. The spiral blade has a guiding effect, which can transport the cut uterine fibroid fragments to the interior of the working rod 2 to prevent the cut uterine fibroid fragments from remaining in the patient's body.

[0046] Further, the end of the rotating roller 541 away from the driving assembly 5 is gradually tapered to facilitate the rotary cutting of the uterine fibroids by the cutting end 542.

[0047] In some examples of the present application, the working rod 2 is provided with a guide structure 21. The guide structure 21 functions to make the controller 11 reciprocate linearly along the guide structure 21, preventing the controller 11 from rotating.

[0048] Specifically, the controller 11 is wrapped outside the guide structure 21; the puller 12 is fixedly connected with the controller 11 after passing through the guide structure 21.

[0049] Preferably, one end of the controller 11 is provided with a sliding block 111, and the inside of the guide structure 21 is provided with a groove 211. The sliding block 111 slides inside the groove 211, and the puller 12 is fixedly connected with the sliding block 111. The purpose of this design is:

[0050] 1. To further ensure that the controller 11 reciprocates linearly along the guide structure 21, preventing the controller 11 from rotating.

[0051] 2. When the controller 11 moves along the guide structure 21 to drive the covering assembly 3 to open, the sliding block 111 moves away from the covering assembly 3, at which time part of the puller 12 is pulled into the inside of the groove 211, preventing the puller 12 from being stuck between the controller 11 and the guide structure 21, causing the controller 11 to fail.

[0052] In specific examples of the present application, the working rod 2 is provided with an attraction port 4; one end of the attraction port 4 is fixedly connected with the working rod 2. When in use, an external negative pressure attraction device is connected to the attraction port 4, which can attract the uterine fibroid fragments placed inside the working rod 2 out, preventing the uterine fibroid fragments from accumulating in large quantities inside the working rod 2.

[0053] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The embodiments described herein are only a part of the embodiments of the present application, rather than all the embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the specification. The present application can also be implemented or applied by other different specific embodiments, and the following embodiments and features in the embodiments can be combined with each other without conflict, and all other embodiments obtained by those skilled in the art on the basis of the embodiments in the present application without creative labor belong to the protection scope of the present application.

Claims

1. An over-the-wire morcellator comprising an over-the-wire assembly and a working shaft disposed along an axis; wherein, The covering assembly comprises an elastic sleeve and at least two movable arms; the movable arms are hinged to a working rod; the movable arms are arranged in a circle with the axis of the working rod as the center; the elastic sleeve is wrapped outside the movable arms; the working rod is provided with a control assembly; the control assembly comprises a controller and a puller; one end of the puller is fixedly connected to the controller, and the other end is fixedly connected to the movable arms; the controller slides on the outer wall of the working rod.

2. An over-the-wire morcellator according to claim 1, wherein, An end of the elastic sleeve away from the working rod is provided with a working port; the diameter of the working port is smaller than the maximum diameter of the elastic sleeve.

3. An over-the-wire morcellator according to claim 1, wherein, The middle part of the movable arm is connected to the puller.

4. An over-the-wire morcellator according to claim 1, wherein, The movable arm comprises a first rotating arm and a second rotating arm; one end of the first rotating arm is hinged to the working rod, and the other end is hinged to the second rotating arm; the second rotating arm is connected to the puller.

5. An over-the-wire morcellator according to claim 1, wherein, The inside of the working rod is provided with a rotary cutter; one end of the working rod away from the covering assembly is provided with a driving assembly; one end of the driving assembly is inserted into the inside of the working rod and is detachably connected to the rotary cutter.

6. An over-the-wire morcellator according to claim 5, wherein, The rotary cutter comprises a rotating roller and a cutting end; one end of the rotating roller is detachably connected to the driving assembly; the cutting end is fixed to the end of the rotating roller away from the driving assembly.

7. An over-the-wire morcellator according to claim 6, wherein, The end of the rotating roller away from the driving assembly is gradually tapered.

8. An over-the-wire morcellator according to claim 1, wherein, The working rod is provided with a guide structure; the controller makes reciprocating linear motion along the guide structure.

9. An over-the-wire morcellator according to claim 8, wherein, The controller is wrapped outside the guide structure; the puller is fixedly connected to the controller after passing through the guide structure.

10. An over-the-wire morcellator according to any one of claims 1-9, wherein, The working rod is provided with a suction port; one end of the suction port is fixedly connected to the working rod.

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