Expander capable of being stably adjusted

Abstract

The utility model relates to the technical field of medical instruments, and discloses a stably adjustable dilator which comprises an upper shifting piece, rotating blocks are fixedly connected to the left side and the right side of the front end of the upper shifting piece, a U-shaped frame is jointly and rotatably connected to the middles of the rotating blocks, first adjusting assemblies are installed on the left side and the right side of the U-shaped frame, and second adjusting assemblies are installed on the left side and the right side of the U-shaped frame. A sliding block is slidably connected to the inner side of the U-shaped frame, a lower shifting piece is fixedly connected to the upper side of the sliding block, limiting holes are formed in the left end and the right end of the lower side of the sliding block, and limiting pins are fixedly connected to the left end and the right end of the bottom of the inner side of the U-shaped frame. The first adjusting assembly and the second adjusting assembly can adjust the upper poking piece and the lower poking piece respectively, a user can adjust the upper poking piece and the lower poking piece according to actual requirements, the arc-shaped sliding rail and the threaded rod are arranged so that adjustment can be more flexible, the adjusting process can be more stable, and discomfort of a patient can be reduced; and the first fastener and the second fastener are arranged on the outer side, so that the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a stably adjustable expander. Background Art

[0002] Vaginal dilators are also called vaginal expanders. They are composed of an upper dilator and a lower dilator. They can adjust the distance between the upper and lower dilators. Vaginal dilators are mainly used for routine gynecological examinations and surgeries. Vaginal dilators are generally duckbill clamp-shaped.

[0003] The existing vaginal dilator has a single adjustment method and only has a single adjustment method. It is not possible to flexibly select the adjustment method according to the needs. In addition, during the actual operation, the tightening effect of manually tightening the nut is poor, and the nut is inconvenient to operate because it is small. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a stable and adjustable expander, aiming to improve the problems of single adjustment mode, inability to flexibly select adjustment modes according to needs, poor tightening effect of manually tightening the nut, and inconvenient operation due to the small size of the nut.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a stably adjustable expander, comprising an upper paddle, the left and right sides of the front end of the upper paddle are fixedly connected with rotating blocks, the middle part of the rotating block is rotatably connected with a U-shaped frame, the left and right sides of the U-shaped frame are installed with a first adjustment component, the inner side of the U-shaped frame is slidably connected with a sliding block, the upper side of the sliding block is fixedly connected with a lower paddle, the left and right ends of the lower side of the sliding block are provided with limiting holes, the left and right ends of the inner bottom of the U-shaped frame are fixedly connected with limiting pins, the upper end of the limiting pin is inserted into the limiting hole, the middle part of the lower side of the sliding block is fixedly connected with a handle, and the second adjustment component is arranged inside the handle.

[0006] As a further description of the above technical solution:

[0007] The first adjustment component includes an L-shaped plate, the lower end of which is slidably connected to an arc-shaped slide rail, an arc-shaped slide groove is provided on the outer side of the arc-shaped slide rail, the outer side of the lower end of the L-shaped plate is threadedly connected to a first fastener, and the inner end of the first fastener is movably connected to the inside of the arc-shaped slide groove.

[0008] As a further description of the above technical solution:

[0009] The top end of the L-shaped plate is fixedly connected to the outer end of the rotating block.

[0010] As a further description of the above technical solution:

[0011] The middle part of the upper side of the arc-shaped slide rail is correspondingly fixedly connected to the lower side of the U-shaped frame.

[0012] As a further description of the above technical solution:

[0013] The second adjustment component comprises an internal threaded tube, a screw rod is internally threadedly connected to the lower end of the internal threaded tube, a rotating seat is fixedly connected to the bottom of the screw rod, and a second fastener is threadedly connected to the right side of the rotating seat.

[0014] As a further description of the above technical solution:

[0015] The outside of the internal threaded tube is slidably connected to the inside of the U-shaped frame and the handle, and the top of the internal threaded tube is fixedly connected to the middle part of the lower side of the sliding block.

[0016] As a further description of the above technical solution:

[0017] The upper end of the rotating seat is rotatably connected to the outside of the lower end of the handle.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the first adjusting component can drive the upper paddle to rotate through the rotating block, and the opening range of the upper paddle and the lower paddle can be adjusted by controlling the rotation angle of the upper paddle. The second adjusting component can drive the sliding block and the lower paddle to descend, thereby adjusting the opening size of the upper paddle and the lower paddle. The user can choose the adjustment method according to actual needs.

[0020] 2. In the utility model, the arrangement of the arc-shaped slide rail and the screw rod makes the adjustment more flexible and the adjustment process smoother, thereby reducing the patient's discomfort. At the same time, the first fastener and the second fastener can fix the L-shaped plate, the arc-shaped slide rail, the handle and the rotating seat respectively, thereby fixing the upper paddle and the lower paddle, thereby increasing the stability of the fixation. The first fastener and the second fastener are located on the outside for easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of a stable and adjustable expander proposed by the utility model;

[0022] Figure 2 A schematic diagram of a U-shaped frame of a stably adjustable expander proposed by the utility model;

[0023] Figure 3 A schematic diagram of a sliding block of a stably adjustable expander proposed by the utility model;

[0024] Figure 4A schematic diagram of an L-shaped plate of a stable and adjustable expander proposed in the utility model;

[0025] Figure 5 A schematic diagram of a screw of a stably adjustable expander proposed in the utility model.

[0026] Legend:

[0027] 1. Upper paddle; 2. Rotating block; 3. U-shaped frame; 4. Sliding block; 5. Lower paddle; 6. Limit hole; 7. Limit pin; 8. Handle; 9. L-shaped plate; 10. Arc-shaped slide rail; 11. Arc-shaped slide groove; 12. First fastener; 13. Internally threaded tube; 14. Screw; 15. Rotating seat; 16. Second fastener. DETAILED DESCRIPTION

[0028] The following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0030] Reference Figure 1-5 The utility model provides an embodiment: a stably adjustable expander, comprising an upper paddle 1, a rotating block 2 is fixedly connected to the left and right sides of the front end of the upper paddle 1, a U-shaped frame 3 is rotatably connected to the middle part of the rotating block 2, a first adjusting component is installed on the left and right sides of the U-shaped frame 3, a sliding block 4 is slidably connected to the inner side of the U-shaped frame 3, a lower paddle 5 is fixedly connected to the upper side of the sliding block 4, limiting holes 6 are provided at the left and right ends of the lower side of the sliding block 4, limiting pins 7 are fixedly connected to the left and right ends of the inner bottom of the U-shaped frame 3, the upper end of the limiting pin 7 is penetrated into the limiting hole 6, a handle 8 is fixedly connected to the middle part of the lower side of the sliding block 4, and a second adjusting component is arranged inside the handle 8.

[0031] The front ends of the unopened upper paddle 1 and the lower paddle 5 are inserted into the vagina, and the upper paddle 1 can be driven to rotate through the first adjustment component to adjust the opening angle of the upper paddle 1 and the lower paddle 5. The sliding block 4 and the lower paddle 5 can be driven to descend through the second adjustment component, and the opening size can be adjusted by adjusting the distance between the upper paddle 1 and the lower paddle 5. Through the different adjustment methods set, the user can choose according to actual needs.

[0032] The first adjustment component includes an L-shaped plate 9, the lower end of the L-shaped plate 9 is slidably connected to an arc-shaped slide rail 10, an arc-shaped slide groove 11 is opened on the outer side of the arc-shaped slide rail 10, the outer side of the lower end of the L-shaped plate 9 is threadedly connected to a first fastener 12, the inner end of the first fastener 12 is movably connected to the inside of the arc-shaped slide groove 11, the top end of the L-shaped plate 9 is fixedly connected to the outer end of the rotating block 2, and the upper middle part of the arc-shaped slide rail 10 is fixedly connected to the lower side of the U-shaped frame 3.

[0033] Rotating the L-shaped plate 9 can drive the upper paddle 1 to rotate, and the lower end of the L-shaped plate 9 slides on the outside of the arc-shaped slide rail 10, thereby adjusting the opening angle of the upper paddle 1 and the lower paddle 5. Rotating the first fastener 12 can fix the L-shaped plate 9 and the arc-shaped slide rail 10, thereby fixing the upper paddle 1 and the lower paddle 5.

[0034] The second adjustment component includes an internal threaded tube 13, the lower end of the internal threaded tube 13 is connected to a screw rod 14 by internal threads, the bottom of the screw rod 14 is fixedly connected to a rotating seat 15, the right side of the rotating seat 15 is threadedly connected to a second fastener 16, the outside of the internal threaded tube 13 is slidably connected to the inside of the U-shaped frame 3 and the handle 8, the top of the internal threaded tube 13 is fixedly connected to the lower middle part of the sliding block 4, and the upper end of the rotating seat 15 is rotatably connected to the outside of the lower end of the handle 8.

[0035] Rotating the rotating seat 15 can drive the screw rod 14 to rotate, and the internal threaded tube 13 is fixed to the sliding block 4 and cannot rotate. Therefore, rotating the screw rod 14 can drive the internal threaded tube 13 to move downward, thereby driving the sliding block 4 and the lower paddle 5 to descend, and adjusting the opening size of the upper paddle 1 and the lower paddle 5. Rotating the second fastener 16 can fix the rotating seat 15 and the handle 8, so that the rotating seat 15 cannot rotate, thereby fixing the lower paddle 5 and the upper paddle 1.

[0036] Working principle: insert the unopened upper paddle 1 and lower paddle 5 into the vagina, then rotate the L-shaped plate 9 to drive the upper paddle 1 to rotate, and the lower end of the L-shaped plate 9 slides on the outside of the arc-shaped slide rail 10, so as to adjust the opening angle of the upper paddle 1 and the lower paddle 5, rotate the first fastener 12 to fix the L-shaped plate 9 and the arc-shaped slide rail 10, thereby fixing the upper paddle 1 and the lower paddle 5, rotate the rotating seat 15 to drive the screw 14 to rotate, and the rotation of the screw 14 can drive the internal threaded tube 13 to move downward, thereby driving the sliding block 4 and the lower paddle 5 to descend, and adjust the opening size of the upper paddle 1 and the lower paddle 5, rotate the second fastener 16 to fix the rotating seat 15 and the handle 8, so that the rotating seat 15 cannot rotate, thereby fixing the lower paddle 5 and the upper paddle 1.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable and adjustable expander, comprising an upper paddle (1), characterized in that: The front end of the upper paddle (1) is fixedly connected to a rotating block (2) on both sides, the middle part of the rotating block (2) is rotatably connected to a U-shaped frame (3), the left and right sides of the U-shaped frame (3) are installed with a first adjustment component, the inner side of the U-shaped frame (3) is slidably connected to a sliding block (4), the upper side of the sliding block (4) is fixedly connected to a lower paddle (5), the lower side of the sliding block (4) is provided with a limiting hole (6) on both ends, the inner side of the bottom of the U-shaped frame (3) is fixedly connected to a limiting pin (7), the upper end of the limiting pin (7) is inserted into the limiting hole (6), the lower middle part of the sliding block (4) is fixedly connected to a handle (8), and the handle (8) is provided with a second adjustment component.

2. A stable and adjustable expander according to claim 1, characterized in that: The first adjustment component comprises an L-shaped plate (9), the lower end of the L-shaped plate (9) is slidably connected to an arc-shaped slide rail (10), an outer side of the arc-shaped slide rail (10) is provided with an arc-shaped slide groove (11), the outer side of the lower end of the L-shaped plate (9) is threadedly connected to a first fastener (12), and the inner end of the first fastener (12) is movably connected to the inside of the arc-shaped slide groove (11).

3. A stable and adjustable expander according to claim 2, characterized in that: The top end of the L-shaped plate (9) is fixedly connected to the outer end of the rotating block (2).

4. A stable and adjustable expander according to claim 2, characterized in that: The middle portion of the upper side of the arc-shaped slide rail (10) is correspondingly fixedly connected to the lower side of the U-shaped frame (3).

5. A stable and adjustable expander according to claim 4, characterized in that: The second adjustment component comprises an internally threaded tube (13), the lower end of the internally threaded tube (13) is internally threadedly connected to a screw rod (14), the bottom of the screw rod (14) is fixedly connected to a rotating seat (15), and the right side of the rotating seat (15) is threadedly connected to a second fastener (16).

6. A stable and adjustable expander according to claim 5, characterized in that: The outside of the internally threaded tube (13) is slidably connected to the inside of the U-shaped frame (3) and the handle (8), and the top of the internally threaded tube (13) is fixedly connected to the middle part of the lower side of the sliding block (4).

7. A stably adjustable expander according to claim 5, characterized in that: The upper end of the rotating seat (15) is rotatably connected to the outside of the lower end of the handle (8).

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