Neck retractor

Abstract

The utility model relates to the field of medical equipment, in particular to a neck retractor. Comprising a rotating handle I and a rotating handle II which are rotationally connected through a pin shaft, a plurality of cogs I are arranged at the end of the rotating handle I, a plurality of cogs II which are distributed with the cogs I in a staggered mode are arranged on the rotating handle II, and finger rings I and finger rings II are arranged on the rotating handle I and the rotating handle II respectively. And corresponding spring frames are arranged on the rotating handle I and the rotating handle II. A spring plate is fixedly connected to the rotating handle I, a limiting plate is arranged on the spring plate, a plurality of limiting grooves are formed in the limiting plate, arc-shaped grooves allowing the limiting plate to penetrate through are formed in the rotating handle I and the rotating handle II, an adjusting groove is formed in the rotating handle II, and a blocking frame capable of positioning the limiting plate when rotating is rotationally connected to the adjusting groove. And a plurality of inserting rods which can be coupled with the limiting grooves are arranged on the blocking frame. And a shifting wheel which is in threaded connection with the blocking frame is arranged in the adjusting groove. The stability of replacing the retractor held by the medical staff can be improved under the condition that the retractor is not replaced.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and more specifically to a neck retractor. Background Art

[0002] A retractor, also known as a retractor hook, is used to retract tissues to expose the surgical area for easy exploration and operation. It can be divided into two categories: handheld retractors and automatic retractors. There are various specifications in different shapes and sizes, and appropriate retractors can be selected according to the surgical needs. However, the existing retractors are not convenient to maintain stability when replacing the medical staff holding the retractor because only a pair of positions for passing through the fingers are provided. Content of the Utility Model

[0003] To overcome the deficiencies of the prior art, the utility model provides a neck retractor that can increase the stability of replacing the medical staff holding the retractor without replacing the retractor.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A neck retractor includes a handle I and a handle II rotatably connected by a pin shaft. Multiple blunt teeth I are provided at the end of the handle I, and multiple blunt teeth II are provided on the handle II and are distributed alternately with the blunt teeth I. Finger rings I and finger rings II are provided on both the handle I and the handle II.

[0006] Further, corresponding spring frames are provided on the handle I and the handle II.

[0007] Further, a spring plate is fixedly connected to the handle I. A limiting plate is provided on the spring plate, and multiple limiting grooves are provided on the limiting plate. Arc-shaped grooves for accommodating the limiting plate to pass through are provided on both the handle I and the handle II. An adjusting groove is provided on the handle II, and a retaining frame that can position the limiting plate when rotated is rotatably connected to the adjusting groove.

[0008] Further, multiple insertion rods that can be coupled with the limiting grooves are provided on the retaining frame.

[0009] Further, a dial wheel threadedly connected to the retaining frame is provided in the adjusting groove.

[0010] The beneficial effects of the neck retractor of the utility model are as follows: it can increase the stability of replacing the medical staff holding the retractor without replacing the retractor; it can increase the comfort of the retractor for people with different palm sizes and improve the stability of holding the retractor; it can lock the surgical field opened by the retractor. Description of the Drawings

[0011] The following further elaborates on the utility model in detail in conjunction with the drawings and specific implementation methods.

[0012] Figure 1 Schematic structural diagram of a neck retractor;

[0013] Figure 2 Schematic structural diagram of the connection between the first rotating handle and the second rotating handle;

[0014] Figure 3 Schematic structural diagram of the first rotating handle and the limit plate;

[0015] Figure 4 Schematic structural diagram of the second rotating handle and the dial;

[0016] The first rotating handle 11; the first finger ring 13; the second finger ring 14; the spring holder 15; the pin shaft 16; the arc groove 17; the second rotating handle 21; the second blunt tooth 22; the adjustment groove 23; the spring plate 31; the limit plate 32; the retaining frame 41; the dial 42. Specific implementation mode

[0017] Refer to Figure 1 and 2 A neck retractor, comprising a first rotating handle 11 and a second rotating handle 21 which are rotatably connected through a pin shaft 16. A plurality of first blunt teeth 12 are fixedly connected to the end of the first rotating handle 11, and a plurality of second blunt teeth 22 which are distributed alternately with the first blunt teeth 12 are fixedly connected to the second rotating handle 21. Finger rings I 13 and finger rings II 14 are formed on both the first rotating handle 11 and the second rotating handle 21. The finger rings I 13 and the first blunt teeth 12 are distributed on both sides of the pin shaft 16. When using the retractor, the first blunt teeth 12 and the second blunt teeth 22 are placed at the incision. The thumbs and middle fingers of both hands pass through the paired finger rings I 13 or the paired finger rings II 14. By pulling the first rotating handle 11 and the second rotating handle 21 closer, the first blunt teeth 12 and the second blunt teeth 22 at the other end are separated, so as to open the incised position and expose the surgical field of view. When a doctor holds the retractor for a long time, the arm will feel sore and the retractor will be unsteady in hand. Sometimes it is necessary to replace the person holding the retractor or another medical staff holds the retractor to replace the one in use. However, replacing the retractor has a greater impact on the operation. Therefore, the best way is to continue using the retractor in use and replace the person holding the retractor. When replacing the person holding the retractor, the common retractor is not convenient to replace because only one pair of positions for passing through the fingers is set. Therefore, by providing the paired finger rings I 13 and the paired finger rings II 14, when replacing the person holding the retractor, the fingers can directly pass through the remaining paired finger rings I 13 or the paired finger rings II 14 without affecting the stability of the retractor. Therefore, it can ensure the stability of the auxiliary surgical field of view during the operation. Since the people who often use the retractor are different and the sizes of their palms are different, the distances between the paired finger rings I 13 and the paired finger rings II 14 from the pin shaft 16 are different. Therefore, it can more easily meet the use requirements of palms of different sizes.

[0018] Refer toFigure 2 , an embodiment of increasing the resistance to opening the surgical incision to expose the visual field is described in detail: corresponding spring frames 15 are fixed on the rotating handles Ⅰ11 and Ⅱ21, and the two spring frames 15 are in contact with each other and deformed to give pre-tightening force to the rotating handles Ⅰ11 and Ⅱ21 under normal conditions, so that the blunt teeth Ⅰ12 and the blunt teeth Ⅱ22 fit together, and the spring frames 15 are made of elastic material. When the ends of the rotating handles Ⅰ11 and Ⅱ21 are pulled close to separate the blunt teeth Ⅰ12 and the blunt teeth Ⅱ22, the two spring frames 15 are deformed to give a resistance to the operator holding the device, so as to ensure that the operator slowly opens the surgical incision to expose the surgical field of view, and the elastic material The manufactured spring frame 15 can be deformed and restored, ensuring that the retractor can be used repeatedly for a long time. The ends of the spring frames 15 that contact each other are cylindrical, which can ensure that the two spring frames 15 can be in stable contact without the ends of the sheet-like structures being misaligned, avoiding accidents that affect the exposure of the surgical field. The ends of the spring frames 15 that contact each other are provided with through holes, and the axis of the through hole coincides with the axis of the cylindrical shape, ensuring that the contact position of the two spring frames 15 can also be deformed. When the two spring frames 15 are bent after long-term use, the bent parts can be compensated to prevent affecting the use of the retractor.

[0019] refer to Figure 1 , 3And 4, a detailed description of an embodiment for locking the opening distance between the locking serration I 12 and the serration II 22: A spring plate 31 is fixedly connected to the turning handle I 11, a limiting plate 32 is fixedly connected to the spring plate 31, a plurality of limiting grooves are provided on the limiting plate 32, arc-shaped grooves 17 for accommodating the limiting plate 32 to pass through are provided on the turning handle I 11 and the turning handle II 21, an adjusting groove 23 is provided on the turning handle II 21, and a retaining frame 41 capable of positioning the limiting plate 32 when rotated is rotatably connected to the adjusting groove 23. A plurality of insertion rods capable of coupling with the limiting grooves are fixedly connected to the retaining frame 41. A dial 42 threadedly connected to the retaining frame 41 is provided in the adjusting groove 23. A plurality of arc-shaped grooves are provided on the dial 42. A flexible material is sleeved on the retaining frame 41. When pulling the ends of the turning handle I 11 and the turning handle II 21 to open the serration I 12 and the serration II 22, relative movement occurs between the turning handle I 11 and the turning handle II 21, thereby adjusting the relative position between the turning handle II 21 and the limiting grooves on the limiting plate 32. After adjusting the opening distance between the serration I 12 and the serration II 22, the dial 42 is rotated by the index finger. The dial 42 drives the retaining frame 41 to rotate, and the insertion rods on the retaining frame 41 are inserted into the limiting grooves to fix the limiting plate 32 and the turning handle II 21, thereby realizing the locking of the opening distance between the serration I 12 and the serration II 22, so as to stably expand the surgical field of view. The flexible material sleeved on the retaining frame 41 can increase the friction force, prevent slipping, and prevent the retaining frame 41 from accidentally rotating. The flexible material can be a rubber material or a cotton yarn material. The setting of the plurality of arc-shaped grooves on the dial 42 increases the friction force, facilitating the reliability when rotated by the index finger and preventing the finger from slipping and being unable to control the rotation position of the dial 42.

Claims

1. A cervical retractor, comprising a rotating handle I (11) and a rotating handle II (21) rotatably connected via a pin (16), the end of the rotating handle I (11) being provided with a plurality of blunt teeth I (12), and the rotating handle II (21) being provided with a plurality of blunt teeth II (22) staggered with the blunt teeth I (12), characterized in that: The rotating handle I (11) and the rotating handle II (21) are both provided with a finger ring I (13) and a finger ring II (14).

2. A cervical retractor according to claim 1, characterized in that: Corresponding spring frames (15) are arranged on the rotating handle I (11) and the rotating handle II (21).

3. A cervical retractor according to claim 1, characterized in that: The rotating handle I (11) is fixedly connected to a spring plate (31), a limiting plate (32) is arranged on the spring plate (31), a plurality of limiting grooves are arranged on the limiting plate (32), the rotating handle I (11) and the rotating handle II (21) are provided with arc grooves (17) for accommodating the limiting plate (32) to pass through, the rotating handle II (21) is provided with an adjusting groove (23), and a retaining frame (41) is rotatably connected to the adjusting groove (23) and capable of positioning the limiting plate (32) when rotating.

4. A cervical retractor according to claim 3, characterized in that: The retaining frame (41) is provided with a plurality of insertion rods which can be coupled with the limiting grooves.

5. The cervical retractor according to claim 3, characterized in that: A thumbwheel (42) threadably connected to the retaining frame (41) is arranged in the adjusting groove (23).

6. A cervical retractor according to claim 5, characterized in that: The thumbwheel (42) is provided with a plurality of arc-shaped grooves.

7. A cervical retractor according to claim 2, characterized in that: The spring frame (15) is made of elastic material.

8. The cervical retractor according to claim 2, characterized in that: The ends of the spring frame (15) that contact each other are cylindrical.

9. A cervical retractor according to claim 8, characterized in that: The ends of the spring frames (15) that contact each other are provided with through holes.

10. The cervical retractor according to claim 5, characterized in that: The retaining frame (41) is sleeved with a flexible material.

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