CN219921265U

CN219921265U - External extrusion type heart fixing device for small animals

Info

Publication number: CN219921265U
Application number: CN202320901841.4U
Authority: CN
Inventors: 岳增辉; 陈安坤; 张程程; 刘欣; 唐玥; 娄雅婷
Original assignee: Hunan University of Chinese Medicine
Current assignee: Hunan University of Chinese Medicine
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-10-31
Anticipated expiration: 2033-04-20

Abstract

The utility model provides an external extrusion type heart fixing device for small animals, which comprises: the support component is fixed on the placement surface and provides support for the device; the clamping assembly is movably mounted on the supporting assembly and comprises an adjusting rod, a clamping claw portion and a locking accessory, the adjusting rod is respectively connected with the supporting assembly and the clamping claw portion, the end portion of the clamping claw portion is movably arranged, and the locking accessory is connected with the clamping claw portion in a matched mode. According to the utility model, the whole device is supported and fixed by arranging the supporting component, the mouse sample is clamped by the clamping component, the position and the orientation angle of the clamping claw part are adjusted by the adjusting rod, the clamping of the mouse sample is realized by the clamping claw part, and then the movable part of the clamping claw part is fixed by the locking accessory, so that the whole mouse sample is fixed, the extrusion of the mouse chest cavity can be kept, the heart of the mouse is exposed and does not fall back to the chest cavity, the operation observation is facilitated, the clamping and fixing effect of the mouse sample is ensured, and the experimental efficiency is improved.

Description

External extrusion type heart fixing device for small animals

Technical Field

The utility model belongs to the field of experimental devices, and particularly relates to an external extrusion type heart fixing device for small animals.

Background

With the development of technology, animal models are increasingly used in research centers, and animal models require standardization, fixed operation and minimize other influencing factors. The heart-related mouse model is an ischemia reperfusion model, a myocardial infarction model or a myocardial surface injection model, a myocardial surface repair model and the like, and is implemented by a relatively precise surgical skill of an operator in the prior art, so that a higher-precision fixing effect on the mouse model is required.

In the prior art, as disclosed in chinese patent CN218500858U, a small animal heart fixing system is used for fixing a small animal heart in a small animal heart operation, the contact area between the small animal heart and the small animal heart is increased by a sucker, and the small animal heart is fixed by the negative pressure tube and the sucker in a matching manner.

However, the heart of the mouse is fragile, the damage to the heart of the mouse is easily caused by the weak adsorption force, and the heart of the mouse is easily slipped off when the adsorption force is too small; and because the sucker needs to be in direct contact with the heart of the mouse, unavoidable pollution or error can be caused to the experiment.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an external extrusion type heart fixing device for small animals, which aims to solve the problems that when the existing small animal heart fixing system is used for fixing, the heart of a mouse is fragile, the heart of the mouse is easily damaged due to overlarge weak adsorption force, and the heart of the mouse is easily slipped due to overlarge adsorption force; and because the sucker needs to be in direct contact with the heart of the mouse, unavoidable pollution or error can be caused to experiments.

In order to achieve the above object, the present utility model provides a small animal external extrusion type heart fixing device, comprising:

the support component is fixed on the placement surface and provides support for the device;

the clamping assembly is movably mounted on the supporting assembly and comprises an adjusting rod, a clamping jaw portion and a locking accessory, the adjusting rod is respectively connected with the supporting assembly and the clamping jaw portion, the end portion of the clamping jaw portion is movably arranged, and the locking accessory is connected with the clamping jaw portion in a matched mode.

The clamping jaw parts are provided with a plurality of clamping jaw parts, and the clamping jaw parts are locked and fixed through the locking accessory.

The clamping jaw part comprises an adjusting end and a clamping end, wherein the adjusting end is connected with the clamping end, and one end, deviating from the clamping end, of the adjusting end is movably connected with the adjusting rod.

Wherein the clamping end and the adjusting end are connected with each other through an elastic piece.

Wherein, the clamping end deviates from the one end of the adjusting end and is provided with a soft surface.

Wherein, still be provided with the dactylotheca in clamping end one side.

Wherein, adjust the pole and be the coil pipe.

The support assembly comprises a support base and a movable piece, the support base is movably connected with the movable piece, and the tail end of the movable piece is connected with the clamping assembly.

The movable piece comprises a movable rod and a rotating table, the movable rod is hinged with the rotating table, and the rotating table is rotatably connected with the supporting base.

Wherein, support base one side is provided with the clamping jaw.

The mouse sample clamping device has the beneficial effects that the supporting component is arranged to support and fix the whole device, the clamping component arranged on the supporting component is used for clamping the mouse sample, the adjusting rod can adjust the position and the orientation angle of the clamping claw part, the clamping of the mouse sample is realized through the movably arranged clamping claw part, and then the movable part of the clamping claw part is fixed through the locking accessory, so that the whole mouse sample is fixed, the extrusion of the mouse thoracic cavity can be kept, the heart of the mouse is exposed to the outside and does not fall back to the thoracic cavity, the operation observation is facilitated, the clamping and fixing effect of the mouse sample is ensured, and the experimental efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of an external extrusion type heart fixing device for small animals according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a clamping assembly in an external extrusion type heart fixing device for a small animal according to an embodiment of the present utility model.

The reference numerals in the drawings:

10-a support assembly; 11-a support base; 111-clamping jaws; 12-a movable member; 121-a movable rod; 122-rotating table; 20-clamping the component; 21-adjusting the rod; 22-clamping claw parts; 221-a regulatory end; 222-a clamping end; 223-an elastic member; 224-soft face; 225-finger stall; 23-lock attachment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the preferred embodiments of the present utility model will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present utility model. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the utility model. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be fixedly connected, or indirectly connected through intermediaries, for example, or may be in communication with each other between two elements or in an interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and "third" in the description and claims of the utility model and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or maintenance tool that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or maintenance tool.

As shown in fig. 1-2, the present utility model provides an in vitro extrusion type heart fixing device for small animals, comprising: a support assembly 10 secured to the placement surface and providing support for the device; the clamping assembly 20 is movably mounted on the supporting assembly 10, the clamping assembly 20 comprises an adjusting rod 21, a clamping jaw part 22 and a locking accessory 23, the adjusting rod 21 is respectively connected with the supporting assembly 10 and the clamping jaw part 22, the end part of the clamping jaw part 22 is adjustable, and the locking accessory 23 is matched and connected with the clamping jaw part 22 to fix the opening state of the clamping jaw part.

The support assembly 10 may include a support base 11 and a movable member 12, where the support base 11 and the movable member 12 are movably connected, and the end of the movable member 12 is connected to the clamping assembly 20.

Wherein the device is usually fixed on a table top when in use. In order to ensure the stability of the fixing, a clamping jaw 111 may be further disposed on one side of the supporting base 11, and the clamping jaw 111 is fixed on the side edge of the desktop, so that a better fixing state can be achieved.

The clamping assembly 20 comprises an adjusting rod 21, a clamping jaw portion 22 and a locking accessory 23, wherein the adjusting rod 21 can be set into an adjustable hose, such as a coil tube which is similar to an anatomic lighting lamp tube, after the direction, the azimuth and the like of the clamping jaw portion 22 are adjusted through the adjusting rod 21, the clamping jaw portion 22 is integrally adjusted, after the clamping jaw portion 22 is used for fixing the heart of a small animal, the clamping jaw portion 22 is fixed through the locking accessory 23, so that the clamping jaw portion 22 is kept in a clamping state, and the integral clamping operation can be completed.

Specifically, in use, the device is first integrally secured to the table top edge by the clamping jaw 111, or is directly placed on the placement surface by the support base 11. After the fixing of the supporting component 10 is completed, the position of the clamping jaw part 22 is adjusted through the adjusting rod 21, so that the clamping jaw part 22 correspondingly stretches to a proper position; the clamping state of the clamping jaw part 22 to the body of the mouse is completed by adjusting the angle of the clamping jaw part 22, and at the moment, the lock accessory 23 is controlled to complete the fixation of the clamping jaw part 22, so that the clamping jaw part 22 always maintains the clamping state, and the chest of the mouse can be extruded, the heart of the mouse is exposed and does not fall back to the chest, and surgical observation is facilitated. After the operation observation is completed, the locking piece 23 is opened to release the clamping state of the clamping jaw portion 22, and at this time, the clamping jaw portion 22 is separated from the mouse sample, so that the whole fixing process can be completed.

It will be appreciated that the locking attachment 23 may be secured in a variety of configurations in the present utility model. For example, the locking member 23 may be a screw and nut type, and the clamping jaw 22 may be fixed by screwing the screw and nut after the clamping jaw portion 22 is rotated to the corresponding position. Or, in order to achieve the effect that the clamping jaw 22 simulates a human hand to clamp, the locking piece 23 can be connected with the end part of the clamping jaw 22 through a pull rope, the clamping jaw 22 can generate a grabbing effect by pulling the pull rope, and then the locking piece 23 can fix the pull rope to complete the fixation of the grabbing state of the clamping jaw 22, so that the fixing effect can be achieved.

Please provide the external extrusion formula heart fixing device of toy through setting up supporting component 10 and provide the support to the device is fixed wholly, get the subassembly 20 through the clamp that sets up on supporting component 10 and carry out the centre gripping to the mouse sample, wherein adjust pole 21 can adjust the position and the orientation angle of clamping jaw portion 22, realize the centre gripping to the mouse sample through the clamping jaw portion 22 that the activity set up, the rethread lock annex 23 is fixed the movable part of clamping jaw portion 22 to realize wholly fixing the mouse sample, guaranteed the centre gripping fixed effect to the mouse sample, improved experimental efficiency.

Accordingly, in order to achieve the clamping effect of the clamping claw portion 22 on the mouse sample, optionally, a plurality of clamping claw portions 22 are provided, and the plurality of clamping claw portions 22 are locked and fixed by the locking attachment 23. In addition, in the present utility model, the jaw portion 22 includes an adjusting end 221 and a clamping end 222, the adjusting end 221 is connected to the clamping end 222, and an end of the adjusting end 221 away from the clamping end 222 is movably connected to the adjusting rod 21.

The adjusting end 221 is used for connecting the clamping end 222 and the adjusting rod 21, and an adjustable mode can be set between the adjusting end 221 and the clamping end 222, so that the angle between the clamping end 222 and the adjusting end 221 can be better adjusted, and a better clamping effect is achieved. Accordingly, in order to avoid damage to the mouse sample caused by the clamping end 222 during the clamping process, thereby generating experimental errors, the clamping end 222 and the adjusting end 221 are optionally connected to each other by an elastic member 223. It can be appreciated that after the clamping end 222 contacts with the mouse sample, the adjusting end 221 is continuously moved, and at this time, the elastic member 223 is deformed to a certain extent, so that the clamping end 222 always keeps fit with the mouse sample, and meanwhile, an excessive force is not applied to the clamping end 222, so that the clamping end 222 is prevented from damaging the mouse sample. After the clamping is completed, the locking attachment 23 is released, the clamping jaw portion 22 is integrally released, and the elastic member 223 is restored to be deformed, so that the detachment can be completed.

Or, when the locking accessory 23 and the clamping jaw part 22 are matched and fixed through the pull rope, the included angle between the adjusting end 221 and the clamping end 222 is concave inwards instead of being concave outwards when the elastic piece 223 is deformed, so that the clamping and fixing effect of the hand can be better simulated; after the locking accessory 23 is released, the clamping end 222 is directly separated from the mouse sample by the restoring force of the elastic piece 223, so that the disassembly is more convenient. The specific arrangement pattern of the elastic member 223 is related to the implementation state of the locking member 23, and the clamping and fixing effects can be achieved, which is not limited in this embodiment.

Further, in order to avoid damage to the mouse sample caused by the clamping end 222, a soft surface 224 is provided at one end of the clamping end 222 facing away from the adjusting end 221, and the soft surface 224 contacts with the mouse sample, so that the friction force is improved and the integrity of the mouse sample is ensured. Accordingly, the soft surface 224 may be a soft plastic part such as a silica gel surface, which can protect the mouse sample, and the embodiment is not limited thereto.

Furthermore, in the present utility model, a finger stall 225 may be further disposed on one side of the clamping end 222, and when the overall clamping form of the clamping claw 22 is adjusted, the finger stall 225 is sleeved with the finger, so that the adjusting end 221 and the clamping end 222 deform correspondingly under the action of the hand, and the clamping claw 22 simulates the hand to grasp the mouse sample, so that a better grasping effect can be achieved. Accordingly, in the present embodiment, the elastic member 223 may be disposed at a position corresponding to the joint when the adjustment end 221 and the grip end 222 are matched with both hands, so that a better adjustment fixing effect may be achieved.

In conducting small animal heart studies, multiple adjustments to angular position, etc., are often required. In the above embodiment, the jaw portion 22 can be adjusted by deformation of the adjustment lever 21, but its adjustment range is small. To this end, in the present utility model, the support assembly 10 may optionally further include a movable member 12, the support base 11 being movably coupled to the movable member 12, and the end of the movable member 12 being coupled to the clamping assembly 20.

The movable member 12 includes a movable rod 121 and a rotating table 122, the movable rod 121 is hinged to the rotating table 122, and the rotating table 122 is rotatably connected to the supporting base 11.

The rotating table 122 realizes the plane rotation of the movable rod 121, and the movable rod 121 is hinged to the rotating table 122, so that the movable rod 121 can realize the adjustment of the position of the whole clamping assembly 20 on the vertical plane, thereby achieving the adjustment in a larger range and being suitable for different operation environments. It should be noted that the rotating table 122 and the movable rod 121 may be provided with additional locking members for fixing after the adjustment is completed, or may be directly fixed by means of self friction force, so that the fixing effect thereof may be achieved, which is not limited in this embodiment.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of protection of the utility model is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of one or more embodiments of the utility model as above, which are not provided in detail for the sake of brevity.

One or more embodiments of the present utility model are intended to embrace all such alternatives, modifications and variations as fall within the broad scope of the present utility model. Accordingly, any omissions, modifications, equivalents, improvements and others which are within the spirit and principles of the one or more embodiments of the utility model are intended to be included within the scope of the utility model.

Claims

1. An external extrusion type heart fixing device for a small animal, comprising:

a support assembly (10) secured to the placement surface and providing support for the device;

the clamping assembly (20) is movably mounted on the supporting assembly (10), the clamping assembly (20) comprises an adjusting rod (21), a clamping jaw portion (22) and a locking accessory (23), the adjusting rod (21) is respectively connected with the supporting assembly (10) and the clamping jaw portion (22), the end portion of the clamping jaw portion (22) is movably arranged, and the locking accessory (23) is connected with the clamping jaw portion (22) in a matched mode.

2. The device according to claim 1, characterized in that a plurality of jaw portions (22) are provided, and a plurality of jaw portions (22) are secured by means of the locking attachment (23).

3. The device according to claim 2, wherein the jaw portion (22) comprises an adjusting end (221) and a clamping end (222), the adjusting end (221) is connected with the clamping end (222), and an end of the adjusting end (221) facing away from the clamping end (222) is movably connected with the adjusting rod (21).

4. A small animal in vitro squeeze-type heart fixation device as in claim 3, characterized in that the clamping end (222) and the adjustment end (221) are interconnected by means of an elastic member (223).

5. The device according to claim 4, characterized in that the end of the clamping end (222) facing away from the adjustment end (221) has a soft face (224).

6. The in vitro squeeze-type heart fixing device of claim 4, wherein a finger cuff (225) is further provided on one side of the gripping end (222).

7. The device according to claim 1, characterized in that the adjustment rod (21) is a coil.

8. The in vitro squeeze-type heart fixing device of any one of claims 1 to 7, wherein the support assembly (10) comprises a support base (11) and a movable member (12), the support base (11) and the movable member (12) are movably connected, and the end of the movable member (12) is connected with the clamping assembly (20).

9. The device according to claim 8, wherein the movable member (12) comprises a movable rod (121) and a rotary table (122), the movable rod (121) being hinged to the rotary table (122), the rotary table (122) being rotatably connected to the support base (11).

10. The in vitro squeeze-type heart fixing device of claim 8, wherein a clamping jaw (111) is arranged at one side of the supporting base (11).