Restraining device

Abstract

The utility model relates to the technical field of medical equipment, and provides a fixing device. The fixing device comprises a support and a cage box. One end of the cage box is connected with the support through a fixed rotating shaft, a movable baffle is arranged at the other end of the cage box, when the baffle is in a first state, one end of the cage box is blocked, and when the baffle is in a second state, an access opening is formed in the end, provided with the baffle, of the cage box; when the baffle is in the first state, a movable rotating shaft capable of moving is arranged between the baffle and the support, so that the baffle and the support form rotating shaft connection, by applying the technical scheme provided by the invention, by arranging the cage box capable of rotating relative to the support, the posture of a pig in the cage box is adjusted; the fixation of the pig in a non-anesthetic state is realized, long-time stable fixation of the pig is ensured, production experimenters can conveniently realize mass blood sampling of the precava, and the precava blood sampling device has the advantages of high efficiency in operation, labor saving and stability in the whole process in the precava blood sampling process.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a fixing device. Background Art

[0002] Currently, the main blood collection sites for adult pigs are the marginal ear vein, the root of the tail, and the anterior vena cava. Taking the blood collection with a volume of 400 cc (cubic centimeters) at a time as an example, the blood collection volume from the marginal ear or the root of the tail of an adult pig far cannot meet the requirements. Therefore, when a large amount of blood needs to be taken, only the blood collection volume from the anterior vena cava among the three sites can meet the requirements.

[0003] When performing blood collection from the anterior vena cava, it is necessary to fix the adult pig. Currently, there are mainly three common methods for fixing adult pigs.

[0004] The first method is fixing with a pig-catching device, that is, using a pig-catching device to put on the upper jaw of the pig and lift it upward to achieve fixation. This method is not only inconvenient to operate but also has a small blood collection volume. The second method is fixing by pressing and supine position, that is, using an artificial pressing method to keep the pig in a supine position. In the supine position fixation method, a sufficient amount of blood can be obtained from the anterior vena cava. However, this method is more effective for pigs under 30 kg, but when collecting blood from adult pigs, since adult pigs have greater strength, both the limbs and the head need to be manually pressed, and due to limited manpower, it is impossible to avoid the struggling and shaking of adult pigs, so the fixation effect is poor. The third method is fixing by anesthesia, that is, for fixing adult pigs, by injecting anesthetic. However, after injecting the anesthetic, there will be anesthetic residue in the blood, and the blood collected by this method will affect both subsequent experiments and production. Utility Model Content

[0005] In order to achieve blood collection from the anterior vena cava of pigs without anesthesia, this application uses a rotatable fixing device to achieve the supine fixation of pigs, and provides a fixing device.

[0006] The fixing device includes: a bracket and a cage;

[0007] One end of the cage is connected to the bracket through a fixed rotating shaft, and the other end is provided with a movable baffle. When the baffle is in the first state, it blocks one end of the cage, and when the baffle is in the second state, an entrance is formed at the end of the cage where the baffle is provided;

[0008] When the baffle is in the first state, a movable rotating shaft is provided between the baffle and the bracket, so that the baffle and the bracket form a rotating shaft connection.

[0009] In one implementation, a movable limiting device is further provided at one end of the cage close to the baffle, so as to limit the rotation of the cage relative to the bracket when the limiting device is connected between the bracket and the cage, and support the cage through the limiting device.

[0010] In one implementation, the limiting device is a fixing bolt, one end of the fixing bolt is clamped to the cage box, and the other end is clamped to the bracket.

[0011] In one implementation, when the baffle is in the second state, one end of the baffle is connected to the cage box, and the other end extends outside the cage box to form a ramp communicating with the inside of the cage box.

[0012] In one implementation, a rotating shaft frame is further included. When the baffle is in the first state, the rotating shaft frame is connected to the bracket to keep the baffle in the first state, and the movable rotating shaft is fixedly or movably arranged on the rotating shaft frame.

[0013] In one implementation, the rotating shaft frame is vertically arranged, one end of the rotating shaft frame is hinged or clamped to the bracket, and the other end is connected to the movable rotating shaft;

[0014] Or,

[0015] The rotating shaft frame is horizontally arranged, both ends of the rotating shaft frame are clamped or pin-connected to the bracket, and the middle area of the rotating shaft frame is connected to the movable rotating shaft;

[0016] Or,

[0017] The rotating shaft frame is horizontally arranged, one end of the rotating shaft frame is hinged to the bracket, the other end is clamped or pin-connected to the bracket, and the middle area of the rotating shaft frame is connected to the movable rotating shaft.

[0018] In one implementation, the bottom of the cage box is a flat plate structure, and an extension opening is provided at one end of the cage box close to the fixed rotating shaft; one end of the flat plate structure extends out of the cage box from the extension opening;

[0019] The fixed rotating shaft is arranged on the single-arm bracket, and when the flat plate structure rotates, a rotating path is formed on one side of the cage box, and the single-arm bracket is arranged on the other side of the cage box to avoid the rotating path of the flat plate structure.

[0020] In one implementation, both sides of the cage box form a conical structure, and the end with a smaller size of the conical structure faces the flat plate structure; elastic gaskets are arranged at the positions of both sides of the flat plate structure and the cage box.

[0021] In one implementation, a first fixing component is provided at one end of the flat plate structure extending out of the cage box, and the first fixing component is used for fixing the head of the pig;

[0022] A plurality of second fixing components and a plurality of hollow parts are arranged on both sides of the cage box, and the second fixing components are used for fixing the legs of the pig.

[0023] In one implementation, the flat structure is the top of the cage, and the bottom of the cage is surrounded by protective plates around the perimeter to prevent the pig's limbs from extending out of the cage when the pig enters the cage;

[0024] The bottom of the bracket is provided with rollers, and the rollers are equipped with braking devices.

[0025] A restraint device provided by an embodiment of the present application includes: a bracket and a cage; one end of the cage is connected to the bracket through a fixed rotating shaft, and the other end is provided with a movable baffle. When the baffle is in the first state, it blocks one end of the cage. When the baffle is in the second state, an entrance is formed at the end of the cage where the baffle is provided; when the baffle is in the first state, a movable rotating shaft is provided between the baffle and the bracket, so that the baffle and the bracket form a rotating shaft connection. Applying the technical solution provided by the present application, by setting a cage that can rotate relative to the bracket, the posture of the pig in the cage is adjusted, so as to achieve the restraint of the pig in a non-anesthetized state, ensure the long-term stable restraint of the pig, and facilitate the production experimenters to collect a large amount of blood from the anterior vena cava. During the process of collecting blood from the anterior vena cava, it has the advantages of high operation efficiency, labor saving, and stable whole process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of one side angle of the first state of the restraint device provided by an embodiment of the present application;

[0028] Figure 2 It is a schematic structural diagram of the first state of the cage provided by an embodiment of the present application;

[0029] Figure 3 It is a schematic structural diagram of the first implementation of the bracket provided by an embodiment of the present application;

[0030] Figure 4 It is a schematic structural diagram of the other side angle of the first state of the restraint device provided by an embodiment of the present application;

[0031] Figure 5 It is a schematic structural diagram of the second state of the restraint device provided by an embodiment of the present application;

[0032] Figure 6 It is a schematic structural diagram of the second state of the cage provided by an embodiment of the present application;

[0033] Figure 7Schematic diagram of the second implementation structure of the bracket provided by the embodiment of the present application;

[0034] Figure 8 Schematic diagram of the third implementation structure of the bracket provided by the embodiment of the present application;

[0035] Figure 9 Schematic diagram of the fourth implementation structure of the bracket provided by the embodiment of the present application;

[0036] Figure 10 Schematic diagram of the cage provided with a protective plate according to the embodiment of the present application.

[0037] In the figure: 1 - bracket, 2 - cage, 21 - baffle, 22 - flat plate structure, 23 - outlet, 3 - fixed rotating shaft, 4 - movable rotating shaft, 5 - limiting device, 6 - rotating shaft frame, 7 - single - arm bracket, 8 - roller, 9 - protective plate. Detailed implementation manners

[0038] In order to realize the collection of the anterior vena cava blood of pigs without anesthesia, the present application uses a rotatable fixing device to realize the supine fixation of pigs. As Figure 1 shown, the fixing device provided by the embodiment of the present application includes a bracket 1 and a cage 2. Among them, the bracket 1 can be set as a fixed type or a movable type. For example, the bracket 1 is carried by a mobile platform. Another example is that, as Figure 3 shown, rollers 8 can be provided at the bottom of the bracket 1, and the movement of the bracket 1 is realized through the rollers 8, and the rollers 8 are provided with a braking device to better ensure the stable state after the fixing device stops moving.

[0039] As Figure 1 shown, one end of the cage 2 is connected to the bracket 1 through a fixed rotating shaft 3, and a movable baffle 21 is provided at the other end of the cage 2. As Figure 1 and 2 shown, the baffle 21 is in the first state. At this time, the baffle 21 blocks one end of the cage 2. As Figure 4 shown, the baffle 21 is in the second state. At this time, an entrance and exit is formed at the end of the cage 2 where the baffle 21 is provided.

[0040] It should be noted that during the process of fixing pigs, it is necessary to avoid stimulating pigs to a greater extent as much as possible. When turning pigs over, considering the physiological structure of pigs and the height dimension during the rotation process, different turning methods cause different degrees of stimulation to pigs. For example, when the rotation axis is parallel to the extending direction of the pig's spine, the stimulation to the pig is smaller; on the contrary, when the rotation axis is perpendicular to the extending direction of the pig's spine, the stimulation to the pig is greater.

[0041] However, in the actual application process, it is necessary to ensure that the internal space of the cage 2 is suitable for the size of the pig. Therefore, it is not easy to set the internal space of the cage 2 too large. When adopting the rotation mode with the rotation axis parallel to the extension direction of the pig's spine, it is necessary to set the rotation axis in the head and tail direction of the pig. Since the pig enters the cage 2 by walking in on its own, and an entrance and exit for the pig to enter and exit need to be opened at the positions of the head and tail of the pig on the cage 2. At this time, in the conventional method, it will cause the rotation axis to be unable to be set at the positions of the head and tail of the pig on the cage 2. And changing the opening position of the entrance and exit is not conducive to controlling the pig to enter the cage 2 by itself.

[0042] In this regard, in the technical solution provided by the embodiment of the present application, a movable rotating shaft 4 is provided between the baffle 21 and the bracket 1. When the baffle 21 is in the first state, the rotating shaft 4 is connected between the baffle 21 and the bracket 1, so that the baffle 21 and the bracket 1 form a rotating shaft connection. In this way, in the actual application process, when the pig needs to enter and exit, as Figure 4 shown, by disassembling or moving the rotating shaft 4 and adjusting the baffle 21 to the second state, an entrance and exit for the pig to enter and exit is formed on the cage 2. When it is necessary to fix the pig, as Figure 1 shown, the baffle is adjusted to the first state, and through the rotating shaft 4, the baffle 21 and the bracket 1 form a rotating shaft connection and provide a supporting force for the cage 2. At this time, the rotation of the cage 2 can be controlled to change the pig from a standing state to a supine state. For example, as Figure 6 shown, at this time the state of the cage 2 corresponds to the supine state of the pig, or the pig is changed from a supine state to a standing state. For example, as Figure 1 shown, at this time the state of the cage 2 corresponds to the standing state of the pig.

[0043] It should be noted that the size of the cage 2 can be designed according to the size of the pig. For example, for large pigs and small pigs, cages 2 with different sizes can be set to adapt to the fixation of pigs of different sizes. In addition, the fixation device provided by the embodiment of the present application is not limited to the fixation of pigs. For other animals used for pig blood collection, if the body structure of the animal is similar to that of the pig, the size of the overall and / or local structure of the fixation device can also be adjusted adaptively to achieve the supine fixation of the animal.

[0044] By applying the fixation device provided by the embodiment of the present application, by setting the cage 2 that can rotate relative to the bracket 1, the posture of the pig in the cage 2 is adjusted, so as to achieve the fixation of the pig in a non-anesthetized state, ensure the long-term stable fixation of the pig, and facilitate the production experimenters to take a large amount of blood from the anterior vena cava. During the process of taking blood from the anterior vena cava, it has the advantages of high operation efficiency, labor saving, and stable whole process.

[0045] When the baffle 21 is in the second state, at this time, no rotating shaft connection is formed between the baffle 21 and the bracket 1, that is, one end of the cage 2 provided with the baffle 21 is not supported by the bracket 1. To ensure that the bracket 1 can carry the cage 2, as Figure 1 , Figure 2 and Figure 5 shown, a movable limiting device 5 is further provided at one end of the cage 2 close to the baffle 21. When the limiting device 5 is connected between the bracket 1 and the cage 2, the cage 2 is supported by the limiting device 5. In particular, when the baffle 21 is in the second state, the position of the cage 2 can be ensured to be stable.

[0046] In addition, when the limiting device 5 is connected between the bracket 1 and the cage 2, the limiting device 5 can also limit the rotation of the cage 2 relative to the bracket 1. In this way, when the pig has not entered the cage 2, the rotation or shaking of the cage 2 is restricted, so that the pig can enter the cage by itself. Or, when the pig is about to leave the cage 2, the rotation or shaking of the cage 2 is restricted to facilitate the pig to leave the cage 2. Or, when the pig is in a supine state, the rotation or shaking of the cage 2 is restricted to achieve supine fixation of the pig.

[0047] To more clearly illustrate the fixation device provided by the embodiments of the present application, the following describes the use process of the fixation device when the limiting device 5 is provided. When performing anterior vena cava blood collection on a pig:

[0048] The first step: When the limiting device 5 is connected between the bracket 1 and the cage 2, disassemble or move the movable rotating shaft 4 to disconnect the baffle 21 from the rotating shaft connection with the bracket 1.

[0049] The second step: Control the baffle 21 to move to the second state to form an entrance and exit on the cage 2.

[0050] The third step: After controlling or guiding the pig to enter the cage 2 from the entrance and exit (including necessary fixing or posture adjustment actions), install or move the movable rotating shaft 4 to form a rotating shaft connection between the baffle 21 and the bracket 1.

[0051] The fourth step: Disassemble or move the limiting device 5 so that the limiting device 5 no longer restricts the rotation of the cage 2 relative to the bracket 1.

[0052] The fifth step: Rotate the cage 2 to change the pig from a standing state to a supine state (including necessary fixing or posture adjustment actions).

[0053] The sixth step: Install or move the limiting device 5 so that the limiting device 5 is connected between the bracket 1 and the cage 2.

[0054] The seventh step: After completing the anterior vena cava blood collection (which may include other surgical operations, for example, injecting a specific medicine solution), disassemble or move the limiting device 5 so that the limiting device 5 no longer restricts the rotation of the cage 2 relative to the bracket 1 (including removing necessary fixing or posture adjustment actions).

[0055] Step 8: Rotate the cage 2 to change the pig's state from supine to standing.

[0056] Step 9: Install or move the limiting device 5 so that the limiting device 5 is connected between the bracket 1 and the cage 2 (including removing necessary fixing or pose adjustment actions).

[0057] Step 10: Remove or move the movable rotating shaft 4 so that the baffle 21 is disengaged from the rotating shaft connection with the bracket 1.

[0058] Step 11: Control the baffle 21 to move to the second state to form an entrance and exit on the cage 2.

[0059] Step 12: Control or guide the pig to leave the cage 2 through the entrance and exit.

[0060] Specifically, in the actual application process, the limiting device 5 is not limited to realizing the support and limiting functions of the cage 2 by connecting the bracket 1 and the cage 2. It can also directly design the limiting device 5 as a structure with its own support and limiting functions. For example, the limiting device 5 is set as a pillar structure that can abut against the ground (the placement platform of the holding device), and the cage 2 is clamped in a way that can limit the rotation of the cage 2. In the embodiment of the present application, the limiting device 5 is set as a fixing bolt, one end of the fixing bolt is clamped to the cage 2, and the other end is clamped to the bracket 1. Specifically, as Figure 2 shown, the fixing bolt can be set as a long rod-shaped structure, as Figure 3 shown, there are through holes or sleeves on the bracket 1, and through holes or sleeves are provided on the cage 2. The fixing bolt passes through the through holes or sleeves and then clamps the cage 2. In the actual application process, the number of fixing bolts can be set as multiple. For example, as Figure 4 shown, the number of fixing bolts is two, and they are respectively arranged on both sides of the cage 2.

[0061] To facilitate the pig's entry and exit from the cage 2, as Figure 4 shown, when the baffle 21 is in the second state, one end of the baffle 21 is connected to the cage 2, and the other end extends outside the cage 2, that is, the other end contacts the placement platform of the ground holding device to form a ramp communicating with the inside of the cage 2. Through the formed ramp, it is very convenient to control or guide the pig to enter and exit the cage 2.

[0062] To facilitate the setting of the movable rotating shaft 4, the holding device provided in the embodiment of the present application further includes a rotating shaft frame 6. When the baffle 21 is in the first state, the rotating shaft frame 6 is movably connected to the bracket 1 to keep the baffle 21 in the first state. The movable rotating shaft 4 is fixedly or movably arranged on the rotating shaft frame 6. Among them, the connection method between the rotating shaft frame 6 and the bracket 1 includes various forms.

[0063] For example, as Figure 8As shown, the rotating shaft bracket 6 is vertically arranged. One end of the rotating shaft bracket 6 is clamped to the bracket 1, and the other end is connected to the movable rotating shaft 4; or, as Figure 9 shown, the rotating shaft bracket 6 is vertically arranged. One end of the rotating shaft bracket 6 is hinged to the bracket 1, and the other end is connected to the movable rotating shaft 4. It should be noted that the connection manner between the movable rotating shaft 4 and the rotating shaft bracket 6 can be a fixed connection, a rotatable connection or a detachable connection. Among them, the rotatable connection manner can accommodate the movable rotating shaft 4 inside the rotating shaft bracket 6. For example, the movable rotating shaft 4 can be arranged perpendicular to the rotating shaft bracket 6 and can rotate upward around a fixed point to be accommodated inside the rotating shaft bracket 6, or it can also be a detachable connection. For example, a through connection hole is provided on the rotating shaft bracket 6, and the movable rotating shaft 4 is arranged by inserting.

[0064] For another example, as Figure 3 shown, the rotating shaft bracket 6 is horizontally arranged. Both ends of the rotating shaft bracket 6 are clamped or pin-connected to the bracket 1, and the middle area of the rotating shaft bracket 6 is connected to the movable rotating shaft 4. In this way, it is convenient to disassemble the rotating shaft bracket 6 from the bracket 1, so as to avoid interfering with the movement of the baffle 21 when adjusting the state of the baffle 21.

[0065] For another example, as Figure 7 shown, the rotating shaft bracket 6 is horizontally arranged. One end of the rotating shaft bracket 6 is hinged to the bracket 1, and the other end is clamped or pin-connected to the bracket 1. The middle area of the rotating shaft bracket 6 is connected to the movable rotating shaft 4. In this way, during actual use, the loss of the rotating shaft bracket 6 can be avoided, and when the rotating shaft bracket 6 is fixed to the bracket 1, faster fixed installation can be achieved.

[0066] Among them, the movable rotating shaft 4 can be fixedly or movably arranged on the rotating shaft bracket 6 and is detachably connected to the cage box 2. Or, the movable rotating shaft 4 can also be fixedly or movably arranged on the cage box 2 and is detachably connected to the rotating shaft bracket 6. Or, the movable rotating shaft 4 is an independent structural member and is detachably connected to both the rotating shaft bracket 6 and the cage box 2.

[0067] In actual application, in order to facilitate the switching of the movable rotating shaft 4 between two states, the two states are specifically: the state where the baffle 21 forms a rotating shaft connection with the bracket 1, and the state where the baffle 21 is disengaged from the rotating shaft connection with the bracket 1. In some embodiments of the present application, the rotating shaft bracket 6 is a telescopic structure. For example, a pipe fitting with multi-joint sliding connection. The movable rotating shaft 4 is detachably or movably arranged on the telescopic structure. It should be noted that when the rotating shaft bracket 6 is arranged as a telescopic structure, it is necessary to ensure that the strength of the telescopic structure meets the design requirements.

[0068] When collecting blood from the anterior vena cava of pigs, in order to facilitate the operator to perform the blood collection action on the pigs, as Figure 1 、 Figure 2 、 Figure 4 Figure 5 andFigure 6 As shown, the bottom of the cage 2 is a flat structure 22, and an extension opening 23 is provided at one end of the cage 2 close to the fixed rotating shaft 3; one end of the flat structure 22 extends out of the cage 2 from the extension opening 23. In this way, in actual application, the head of the pig can extend out of the cage 2 through the extension opening 23 and is supported by the flat structure 22 extending outside the cage 2. Among them, a part or the whole of the neck of the pig can also be exposed outside the cage 2. The size and shape of the extension opening 23 can be designed according to the body structure of the pig. For example, as Figure 6 , it can be set as an arc conforming to the neck structure of the pig on one side.

[0069] In addition, an opening structure can also be provided on the side of the cage 2. In this way, when only a part of the neck is exposed outside the cage 2, the operator can use the opening structure to more conveniently perform the blood collection action. And a first fixing component is provided at one end of the flat structure 22 extending out of the cage 2. Among them, the first fixing component is used to fix the head of the pig when the pig is in a supine state. For example, by fixing the pig's mouth part, the head is fixed. The first fixing component can be a strap or a clamping device. For example, the strap can be a rubber strap, a leather strap or a cloth strap, and the clamping device is an elastic clamping device.

[0070] As Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, the fixed rotating shaft 3 is arranged on the single-arm bracket 7, and when the flat structure 22 rotates, a rotation path is formed on one side of the cage 2. The single-arm bracket 7 is arranged on the other side of the cage to avoid interfering with the rotation path of the flat structure 22. In this way, when the cage 2 is rotated, interference with the rotation movement of the flat structure 22 and the head of the pig can be avoided.

[0071] Furthermore, in order to adapt to the body structure of the pig and avoid unnecessary stimulation to the pig during the fixing process, as Figure 1 , Figure 2 , Figure 4 and Figure 6 shown, in some embodiments of the present application, tapered structures are formed on both sides of the cage 2, and the ends with smaller sizes of the tapered structures face the flat structure 22. In this way, the tapered structures can better fit the back structure of the pig, and when the pig maintains a supine state, the stimulation to the pig can be reduced as much as possible.

[0072] In addition, elastic gaskets can also be provided at the positions on both sides of the flat structure 22 and the cage 2 to avoid damage to the pig caused by rigid structures (such as iron plates or steel bars), or causing greater stimulation to the pig.

[0073] To prevent pigs from making large movements in the supine position, a plurality of second fixing components are provided on both sides of the cage 2. The legs of the pigs are fixed by the plurality of second fixing parts to prevent the pigs from making large-amplitude movements. Among them, similar to the first fixing part, the second fixing part can be a strap or a clamping device. For example, the strap can be a rubber strap, a leather strap or a cloth strap, and the clamping device can be an elastic clamping device. In addition, according to the bone structure of the pigs, a plurality of hollow parts can be provided on both sides of the cage 2 to form an avoidance structure through the provided hollow parts to prevent the protruding bone structure of the pigs from being squeezed by the rigid structure. For example, the structure of the cage 2 provided in the embodiment of the present application adopts a truss structure, and the truss structure can be reasonably arranged, so as to form a hollow part between a plurality of trusses.

[0074] In addition, as Figure 10 shown, the flat structure 22 is the top of the cage 2, and the periphery of the bottom of the cage 2 is surrounded by a protective plate 9 to prevent the limbs of the pigs from protruding out of the cage 2 when the pigs enter the cage 2; among them, the protective plate 9 is made of steel plate. In some embodiments, a rubber gasket can be attached to the surface of the steel plate structure to avoid additional damage to the pigs caused by the steel plate structure.

[0075] It should be noted that in the embodiment of the present application, the top refers to the upper end direction when the pig stands, and the bottom refers to the lower end direction when the pig stands.

[0076] A holding device provided by an embodiment of the present application includes: a bracket 1 and a cage 2; one end of the cage 2 is connected to the bracket 1 through a fixed rotating shaft 3, and the other end is provided with a movable baffle 21. When the baffle 21 is in the first state, one end of the cage 2 is blocked. When the baffle 21 is in the second state, an entrance and exit is formed at the end of the cage 2 where the baffle 21 is provided; when the baffle 21 is in the first state, a movable rotating shaft 4 is provided between the baffle 21 and the bracket 1, so that the baffle 21 and the bracket 1 form a rotating shaft connection.

[0077] Applying the holding device provided by the embodiment of the present application, by setting the cage 2 that can rotate relative to the bracket 1, the posture of the pigs in the cage 2 is adjusted, so as to realize the holding of the pigs in a non-anesthetized state, ensure the long-term stable holding of the pigs, and facilitate the production experimenters to collect a large amount of blood from the anterior vena cava. During the process of collecting blood from the anterior vena cava, it has the advantages of high operation efficiency, labor saving and stable whole process.

[0078] The above specific implementation manners further elaborate the purpose, technical solution and beneficial effects of the present application. It should be understood that the above are only the specific implementation manners of the present application, and are not used to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solution of the present application shall be included in the protection scope of the present application.

Claims

1. A fixing device, characterized in that, Comprising: A bracket (1) and a cage (2); One end of the cage (2) is connected to the bracket (1) through a fixed rotating shaft (3), and the other end is provided with a movable baffle (21); when the baffle (21) is in the first state, one end of the cage (2) is blocked; when the baffle (21) is in the second state, an entrance and exit is formed at the end of the cage (2) where the baffle (21) is provided. When the baffle (21) is in the first state, a movable rotating shaft (4) is provided between the baffle (21) and the bracket (1) so that the baffle (21) is rotatably connected to the bracket (1).

2. The immobilization device according to claim 1, characterized in that, A movable limiting device (5) is further provided at one end of the cage (2) close to the baffle (21) to limit the rotation of the cage (2) relative to the bracket (1) when the limiting device (5) is connected between the bracket (1) and the cage (2), and to support the cage (2) through the limiting device (5).

3. The fixing device according to claim 2, wherein, The limiting device (5) is a fixing bolt, one end of the fixing bolt is clamped to the cage (2), and the other end is clamped to the bracket (1).

4. The fixing device according to claim 1, characterized in that, When the baffle (21) is in the second state, one end of the baffle (21) is connected to the cage (2), and the other end extends outside the cage (2) to form a ramp communicating with the inside of the cage (2).

5. The holding device according to claim 1, wherein, It further includes a rotating shaft frame (6). When the baffle (21) is in the first state, the rotating shaft frame (6) is connected to the bracket (1) to keep the baffle (21) in the first state, and the movable rotating shaft (4) is fixedly or movably arranged on the rotating shaft frame (6).

6. The holding device according to claim 5, wherein, The rotating shaft frame (6) is vertically arranged, one end of the rotating shaft frame (6) is hinged or clamped to the bracket (1), and the other end is connected to the movable rotating shaft (4); Or, The rotating shaft frame (6) is horizontally arranged, both ends of the rotating shaft frame (6) are clamped or pin-connected to the bracket (1), and the middle area of the rotating shaft frame (6) is connected to the movable rotating shaft (4); Or, The rotating shaft frame (6) is horizontally arranged, one end of the rotating shaft frame (6) is hinged to the bracket (1), the other end is clamped or pin-connected to the bracket (1), and the middle area of the rotating shaft frame (6) is connected to the movable rotating shaft (4).

7. The holding device according to claim 1, characterized in that, The bottom of the cage (2) is a flat plate structure (22), and an extension opening (23) is provided at one end of the cage (2) close to the fixed rotating shaft (3); one end of the flat plate structure (22) extends out of the cage (2) from the extension opening (23). The fixed rotating shaft (3) is arranged on a single-arm bracket (7), and when the flat plate structure (22) rotates, a rotating path is formed on one side of the cage (2), and the single-arm bracket (7) is arranged on the other side of the cage to avoid the rotating path of the flat plate structure (22).

8. The fixing device according to claim 7, characterized in that, Conical structures are formed on both sides of the cage (2), and the ends with smaller dimensions of the conical structures face the flat plate structure (22); elastic gaskets are arranged at the positions on both sides of the flat plate structure (22) and the cage (2).

9. The fixing device according to claim 8, wherein One end of the flat structure (22) extending out of the cage (2) is provided with a first fixing member for fixing the head of the pig. A plurality of second fixing members and a plurality of hollow portions are provided on both sides of the cage (2), and the second fixing members are used for fixing the legs of the pig.

10. The holding device according to claim 9, wherein, The flat structure (22) is the top of the cage (2), and the periphery of the bottom of the cage (2) is surrounded by a protective plate (9) to prevent the four limbs of the pig from extending out of the cage (2) when the pig enters the cage (2). The bottom of the bracket (1) is provided with rollers (8), and the rollers (8) are provided with braking devices.

Images