Retractor for animal experiment

Abstract

The utility model provides a retractor for animal experiments, which comprises a base, two ends of the base are respectively connected with a first retracting component and a second retracting component which can move transversely, and a first connecting piece, a second connecting piece and a lifting seat capable of adjusting lifting movement are arranged between the first retracting component and the second retracting component. One end of the first connecting piece is rotatably connected to the first retraction assembly, and the other end of the first connecting piece is rotatably connected to the lifting seat; one end of the second connecting piece is rotatably connected to the second retraction assembly, and the other end of the second connecting piece is rotatably connected to the lifting base. The position of the retraction assembly is changed through the adjusting screw rod, so that the purpose of retracting the surgical wound of the animal is achieved, adjustment, taking and placing are convenient and fast, retraction is stable, operation is easy, and the surgical wound retractor can adapt to retraction of surgical wounds of various animals to a great extent in an experiment.

Description

Technical Field

[0001] The utility model relates to the technical field of animal experiment instruments, in particular to a retractor used for animal experiments. Background Art

[0002] Experimental model animals involved in biological research often need to undergo surgical operations. In cavity surgeries, such as common neck intubation or abdominal surgery, fur and muscles often block the deep surgical field. During the operation, retractors or retractors are needed to expand the wound and expose the deep surgical field, thereby freeing the surgeon's hands and reducing the difficulty of the operation.

[0003] However, the existing retractor is fixed in position with the platform and can only be used for retracting the thoracic and abdominal cavities. Moreover, since the retractor is fixed on the platform, it is difficult to adjust the height and position. The retractor has poor adjustability in the incision and cannot be used for retracting the neck or small incisions. Therefore, it cannot be widely used for retracting a variety of animal surgical incisions and it is inconvenient to adjust the position of the retractor. Utility Model Content

[0004] In order to solve the problems existing in the prior art, at least one embodiment of the utility model provides a retractor for animal experiments, which can perform retraction operations at any position, is convenient to adjust and take and place, has stable retraction, and is simple to operate. To a large extent, it can be adapted to retraction of surgical wounds of various animals in experiments.

[0005] The utility model embodiment proposes a retractor for animal experiments, including a base, wherein two ends of the base are respectively connected to a first retractor assembly and a second retractor assembly that can be moved laterally, and a first connecting member, a second connecting member and a lifting seat that can be adjusted to move up and down are arranged between the first retractor assembly and the second retractor assembly; one end of the first connecting member can be rotatably connected to the first retractor assembly, and the other end of the first connecting member can be rotatably connected to the lifting seat; one end of the second connecting member can be rotatably connected to the second retractor assembly, and the other end of the second connecting member can be rotatably connected to the lifting seat.

[0006] In some embodiments, the utility model provides a retractor for animal experiments, wherein a first retractor assembly includes a first retractor arm and a first retractor portion, wherein one end of the first retractor arm can be laterally movably connected to a base, the other end of the first retractor arm is connected to the first retractor portion, and the first retractor portion is provided with a first retractor groove; a second retractor assembly includes a second retractor arm and a second retractor portion, wherein one end of the second retractor arm can be laterally movably connected to the base, the other end of the second retractor arm is connected to the second retractor portion, and the second retractor portion is provided with a second retractor groove.

[0007] In some embodiments, the utility model provides a retractor for animal experiments, wherein a first groove is provided on the side of the first retractor arm facing the lifting seat, and a first rotating axis is provided in the first groove; a second groove is provided on the side of the second retractor arm facing the lifting seat, and a second rotating axis is provided in the second groove; a third groove and a fourth groove are respectively provided on both sides of the lifting seat, a third rotating axis is provided in the third groove, and a fourth rotating axis is provided in the fourth groove.

[0008] In some embodiments, the utility model provides a retractor for animal experiments, wherein one end of the first connecting member can be rotatably connected to the first rotating axis, and the other end of the first connecting member can be rotatably connected to the third rotating axis; one end of the second connecting member can be rotatably connected to the second rotating axis, and the other end of the second connecting member can be rotatably connected to the fourth rotating axis.

[0009] In some embodiments, the utility model provides a retractor for animal experiments, wherein a base is provided with a slide groove, one end of a first retractor arm is connected to a first slider adapted to the slide groove, the first slider is cooperatively connected to the slide groove, one end of a second retractor arm is connected to a second slider adapted to the slide groove, the second slider is cooperatively connected to the slide groove.

[0010] In some embodiments, the utility model provides a retractor for animal experiments, wherein the slide groove is a T-shaped structure.

[0011] In some embodiments, the utility model provides a retractor for animal experiments, and the ends of the base are respectively provided with stoppers.

[0012] In some embodiments, the utility model provides a retractor for animal experiments, wherein the first retractor groove and the second retractor groove are both in an arc-shaped structure.

[0013] In some embodiments, the utility model provides a retractor for animal experiments, wherein the base is provided with a threaded through hole located between the first retractor component and the second retractor component, and the top of the lifting seat is connected with a screw rod adapted to the threaded through hole, and the screw rod is cooperatively connected with the threaded through hole.

[0014] In some embodiments, the utility model provides a retractor for animal experiments, wherein one end of the screw is connected to a hand-tightening piece, and a plurality of anti-slip grooves are arranged around the outside of the hand-tightening piece.

[0015] It can be seen that the retractor for animal experiments in the embodiment of the utility model can perform retraction operations at any position. The position of the retraction component is changed by adjusting the screw, so as to achieve the purpose of retracting the surgical wound of the animal. The adjustment and placement are relatively convenient, the retraction is stable, and the operation is simple. To a large extent, it can be adapted to the retraction of surgical wounds of various animals in experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 Shown is a schematic structural diagram of a retractor used for animal experiments in an embodiment of the utility model;

[0018] Figure 2 Shown is a front view of a retractor for animal experiments in an embodiment of the utility model;

[0019] Figure 3 Shown is a top view of a retractor used for animal experiments in an embodiment of the utility model;

[0020] Figure 4 Shown is a schematic structural diagram of the first retracting arm in an embodiment of the utility model;

[0021] Figure 5 Shown is a schematic structural diagram of the second retracting arm in an embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the lifting seat in the embodiment of the utility model.

[0023] The reference numerals in the accompanying drawings of the specification are as follows:

[0024] Base 1, slide groove 11, first retraction component 2, first retraction arm 21, first groove 211, first slider 212, first rotating axis 2111, first retraction part 22, first retraction groove 221, second retraction component 3, second retraction arm 31, second groove 311, second slider 312, second rotating axis 3111, second retraction part 32, second retraction groove 321, first connecting member 4, second connecting member 5, lifting seat 6, third groove 61, third rotating axis 611, fourth groove 62, fourth rotating axis 621, screw 63, hand screw 631, anti-slip groove 6311. Specific implementation plan

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0026] It should be noted that, in this article, relational terms such as "first" and "second" 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. In this article, 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. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0027] The inventor of this solution found that in the prior art, the retractor is fixed in position with the platform and can only be used for retracting the chest and abdominal cavity. Moreover, since the retractor is fixed on the platform, it is difficult to adjust the height and position. The retractor has poor adjustability in the incision and cannot be used for retracting the neck or small incisions. Therefore, it cannot be widely used in retracting various animal surgical incisions and it is inconvenient to adjust the position of the retractor. The utility model provides the following solutions:

[0028] like Figures 1 to 6 As shown, the embodiment of the utility model provides a retractor for animal experiments, including a base 1, two ends of the base 1 are respectively connected to a first retractor assembly 2 and a second retractor assembly 3 that can move laterally, and a first connecting member 4, a second connecting member 5 and a lifting seat 6 that can adjust the lifting and lowering movement are arranged between the first retractor assembly 2 and the second retractor assembly 3. One end of the first connecting member 4 can be rotatably connected to the first retractor assembly 2, and the other end of the first connecting member 4 can be rotatably connected to the lifting seat 6. One end of the second connecting member 5 can be rotatably connected to the second retractor assembly 3, and the other end of the second connecting member can be rotatably connected to the lifting seat 6.

[0029] It should be noted that the first retractor assembly 2 and the second retractor assembly 3 are moved laterally by adjusting the up and down positions of the lifting seat 6. During the experiment, the lifting seat 6 is lifted according to the size of the surgical wound of the animal. At this time, the first connecting member 4 pulls the first retractor assembly 2, and the second connecting member 5 pulls the second retractor assembly 3, so that the first retractor assembly 2 and the second retractor assembly 3 are closed to reach the retracting position of the wound. Subsequently, the lifting seat 6 is lowered. At this time, the first connecting member 4 pushes the first retractor assembly 2, and the second connecting member 5 pushes the second retractor assembly 3, so that the first retractor assembly 2 and the second retractor assembly 3 are opened outward to achieve the purpose of retracting the wound, that is, to retract the fur, muscle layer or cavity contents of the wound, expose the deep structure to be operated on, and reduce the difficulty of the operation.

[0030] Specifically, the first retraction assembly 2 includes a first retraction arm 21 and a first retraction portion 22, one end of the first retraction arm 21 can be laterally movably connected to the base 1, the other end of the first retraction arm 21 is connected to the first retraction portion 22, and the first retraction portion 22 is provided with a first retraction groove 221. The second retraction assembly 3 includes a second retraction arm 31 and a second retraction portion 32, one end of the second retraction arm 31 can be laterally movably connected to the base 1, the other end of the second retraction arm 31 is connected to the second retraction portion 32, and the second retraction portion 32 is provided with a second retraction groove 321. The first retraction groove 221 and the second retraction groove 321 are both arc-shaped structures.

[0031] The first retracting arm 21 is provided with a first groove 211 on the side facing the lifting seat 6, and a first rotating shaft 2111 is provided in the first groove 211. The second retracting arm 31 is provided with a second groove 311 on the side facing the lifting seat 6, and a second rotating shaft 3111 is provided in the second groove 311. The lifting seat 6 is provided with a third groove 61 and a fourth groove 62 on both sides, respectively, and a third rotating shaft 611 is provided in the third groove 61, and a fourth rotating shaft 621 is provided in the fourth groove 62.

[0032] One end of the first connecting member 4 is rotatably connected to the first rotating shaft 2111, and the other end of the first connecting member 4 is rotatably connected to the third rotating shaft 611. One end of the second connecting member 5 is rotatably connected to the second rotating shaft 3111, and the other end of the second connecting member 5 is rotatably connected to the fourth rotating shaft 621.

[0033] It can be understood that by setting the first rotating axis 2111, the second rotating axis 3111, the third rotating axis 611 and the fourth rotating axis 621, the two ends of the first connecting member 4 can rotate more smoothly in the first retraction arm 21 and the lifting seat 6, and the two ends of the second connecting member 5 can rotate more smoothly in the second retraction arm 31 and the lifting seat 6, so that the first retraction arm 21 and the second retraction arm 31 are more stable when moving laterally.

[0034] The base 1 is provided with a slide groove 11, which is a T-shaped structure. One end of the first retracting arm 21 is connected to a first slider 212 adapted to the slide groove, and the first slider 212 is connected to the slide groove 11. One end of the second retracting arm 31 is connected to a second slider 312 adapted to the slide groove 11, and the second slider 312 is connected to the slide groove 11.

[0035] It should be noted that the first retracting arm 21 moves laterally on the base 1 by the first slider 212 being engaged with the slide groove 11, and the second retracting arm 31 moves laterally on the base 1 by the second slider 312 being engaged with the slide groove 11. It is understandable that there is a gap between the first slider 212 and the second slider 312 in the slide groove 11, so that the first slider 212 and the second slider 312 can move smoothly in the slide groove 11.

[0036] The base 1 is provided with a threaded through hole between the first retraction assembly 2 and the second retraction assembly 3, and the top of the lifting seat 6 is connected with a screw 63 adapted to the threaded through hole, and the screw 63 is connected with the threaded through hole. One end of the screw 63 is connected with a hand screw 631, and a plurality of anti-slip grooves 6311 are provided around the outer periphery of the hand screw 631.

[0037] It is understandable that when the hand-tightening member 631 is rotated by hand, the screw rod 63 can be driven to rotate, thereby adjusting the up and down positions of the lifting seat 6, that is, adjusting the lateral movement positions of the first retraction assembly 2 and the second retraction assembly 3.

[0038] Furthermore, the ends of the base 1 are provided with blocks 12, which can limit the maximum opening distance of the first retractor arm 21 and the second retractor arm 31, thereby improving safety in the experiment. The first retractor slot 221 and the second retractor slot 321 are both arranged in an arc shape.

[0039] In specific implementation, during the experiment, the lifting seat 6 is adjusted to a suitable position according to the size of the surgical wound of the animal, the first retractor assembly 2 and the second retractor assembly 3 are closed to reach the retractor position of the wound, and the left and right sides of the wound are respectively inserted into the first retractor groove 221 and the second retractor groove 321. Subsequently, the lifting seat 6 is adjusted to a suitable position again, and the first retractor groove 221 and the second retractor groove 321 are opened outward to retract the wound, thereby exposing the deep structure to be operated on and reducing the difficulty of the operation.

[0040] In summary, the embodiments of the utility model provide a retractor for animal experiments, which can perform retraction operations at any position. The position of the retractor assembly is changed by adjusting the screw, thereby achieving the purpose of retracting the surgical wound of the animal. The adjustment and placement are relatively convenient, the retraction is stable, and the operation is simple. To a large extent, it can be adapted to the retraction of surgical wounds of a variety of animals in experiments.

[0041] The above contents are only specific implementation methods of the present application, and the protection scope of the present application is not limited thereto. Those skilled in the art may make changes or substitutions within the technical scope disclosed in the present application, and these changes or substitutions shall be within the protection scope of the present application.

[0042] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is meant to be within the scope of the present invention and to form different embodiments.

[0043] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A retractor for animal experiments, characterized in that: The invention comprises a base (1), wherein two ends of the base (1) are respectively connected to a first retraction component (2) and a second retraction component (3) which can be moved laterally, and a first connecting member (4), a second connecting member (5) and a lifting seat (6) which can be adjusted to move up and down are arranged between the first retraction component (2) and the second retraction component (3); one end of the first connecting member (4) can be rotatably connected to the first retraction component (2), and the other end of the first connecting member (4) can be rotatably connected to the lifting seat (6); one end of the second connecting member (5) can be rotatably connected to the second retraction component (3), and the other end of the second connecting member can be rotatably connected to the lifting seat (6).

2. The retractor for animal experiments according to claim 1, characterized in that: The first retraction assembly (2) comprises a first retraction arm (21) and a first retraction part (22), one end of the first retraction arm (21) is connected to the base (1) in a transversely movable manner, the other end of the first retraction arm (21) is connected to the first retraction part (22), and the first retraction part (22) is provided with a first retraction groove (221); the second retraction assembly (3) comprises a second retraction arm (31) and a second retraction part (32), one end of the second retraction arm (31) is connected to the base (1) in a transversely movable manner, the other end of the second retraction arm (31) is connected to the second retraction part (32), and the second retraction part (32) is provided with a second retraction groove (321).

3. The retractor for animal experiments according to claim 2, characterized in that: A first groove (211) is provided on the side of the first pulling arm (21) facing the lifting seat (6), and a first rotating shaft (2111) is provided in the first groove (211); a second groove (311) is provided on the side of the second pulling arm (31) facing the lifting seat (6), and a second rotating shaft (3111) is provided in the second groove (311); a third groove (61) and a fourth groove (62) are respectively provided on both sides of the lifting seat (6), a third rotating shaft (611) is provided in the third groove (61), and a fourth rotating shaft (621) is provided in the fourth groove (62).

4. The retractor for animal experiments according to claim 3, characterized in that: One end of the first connecting member (4) can be rotatably connected to the first rotating shaft (2111), and the other end of the first connecting member (4) can be rotatably connected to the third rotating shaft (611); one end of the second connecting member (5) can be rotatably connected to the second rotating shaft (3111), and the other end of the second connecting member (5) can be rotatably connected to the fourth rotating shaft (621).

5. The retractor for animal experiments according to claim 2, characterized in that: The base (1) is provided with a slide groove (11), one end of the first retraction arm (21) is connected to a first slider (212) adapted to the slide groove, and the first slider (212) is connected to the slide groove (11); one end of the second retraction arm (31) is connected to a second slider (312) adapted to the slide groove (11), and the second slider (312) is connected to the slide groove (11).

6. The retractor for animal experiments according to claim 5, characterized in that: The slide groove (11) is in a T-shaped structure.

7. The retractor for animal experiments according to claim 2, characterized in that: Stoppers (12) are respectively provided at the ends of the base (1).

8. The retractor for animal experiments according to claim 2, characterized in that: The first distraction groove (221) and the second distraction groove (321) are both arc-shaped structures.

9. The retractor for animal experiments according to claim 1, characterized in that: The base (1) is provided with a threaded through hole located between the first retraction assembly (2) and the second retraction assembly (3), and the top of the lifting seat (6) is connected with a screw rod (63) adapted to the threaded through hole, and the screw rod (63) is cooperatively connected with the threaded through hole.

10. The retractor for animal experiments according to claim 9, characterized in that: One end of the screw rod (63) is connected to a hand-tightening piece (631), and a plurality of anti-slip grooves (6311) are arranged around the outside of the hand-tightening piece (631).

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