Clamp holder applied to rat blood vessels

Abstract

The invention belongs to the technical field of blood vessel clamping, and discloses a clamping device applied to rat blood vessels, a clamping device comprises a body, two symmetrically-arranged clamping arms are locked at one end of the body through screws, a clamping head is locked at the end, away from the body, of each clamping arm through screws, a monitoring device comprises a force sensing part and a display screen, the force sensing part is installed on the clamping head, and the display screen is connected with the force sensing part. The display screen is installed on the body, the force sensing part is connected with the display screen, the observation device comprises a fixing frame installed on the body, an electric push rod is installed in the fixing frame, the output end of the electric push rod extends out of the fixing frame, an amplifier is rotationally installed at the output end of the electric push rod, and the electric push rod is used for driving the amplifier to be close to or away from the clamping head; a blood vessel is clamped between the two clamping heads, the clamping arms and the clamping heads are detachable and replaceable, the force sensing piece monitors the stress value of the blood vessel in real time and displays and records the stress value through the display screen, and the electric push rod drives the amplifier to approach the clamping heads in the clamping operation so as to observe the operation and facilitate the experiment.

Description

Technical Field

[0001] The present invention relates to the technical field of blood vessel clamping, in particular to a clamper used for rat blood vessels. Background Art

[0002] The vascular clamp used in the rat experiment is an experimental tool used to temporarily close blood vessels. It is commonly used in biological research to facilitate surgery, tissue transplantation, blood flow control, or experimental observation. The vascular clamp can help researchers precisely control blood flow, reduce bleeding, and protect tissue from damage during surgery or experiments.

[0003] When clamping blood vessels, existing clamps have a thin end, making it difficult to monitor the force on the blood vessels when clamping rat blood vessels, resulting in the inability to record experimental data for reference and learning in subsequent experiments. Existing clamps are mostly one-piece designs, making it difficult to quickly replace the used clamping head during the experiment, thereby affecting experimental efficiency. In addition, experimenters are often unable to accurately observe the condition of the blood vessels, resulting in limited experimental operations. Summary of the Invention

[0004] The purpose of the present invention is to provide a clamp for rat blood vessels, which is convenient for replacing clamping parts, can monitor the force value of the blood vessels in real time, accurately observe the blood vessel conditions, and facilitate experimental operations.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A clamp for rat blood vessels, comprising:

[0007] A clamping device, comprising a body, one end of which is screwed to two symmetrically arranged clamping arms, and one end of the clamping arm away from the body is screwed to a clamping head, such that the blood vessel is clamped between the two clamping heads;

[0008] a monitoring device, the monitoring device comprising a force sensor and a display screen, the force sensor being mounted on the clamping head and used to monitor the force value of the blood vessel, the display screen being mounted on the body and connected to the display screen and used to display the force value;

[0009] An observation device includes a fixed frame, which is installed on the main body. An electric push rod is installed in the fixed frame. The output end of the electric push rod extends out of the fixed frame, and an amplifier is rotatably installed on the output end of the electric push rod. The electric push rod is configured to drive the amplifier to move closer to or away from the clamping head.

[0010] Preferably, the observation device includes a positioning assembly, which includes a connecting block, which is installed at the output end of the electric push rod, and two positioning plates are relatively arranged on the top of the connecting block. The amplifier is arranged between the two positioning plates and is rotatably installed on the connecting block. A number of positioning holes distributed in a ring are provided on the opposite sides of the two positioning plates. A fixing column is installed on the handle of the amplifier, and a cavity is provided at the end of the fixing column away from the amplifier. The interior of the cavity is connected to a sliding disk through a spring sliding, and a positioning ball is clamped at the end of the cavity. The spring is used to push the sliding disk, driving at least part of the positioning ball to be embedded in any of the positioning holes.

[0011] Preferably, the clamp used for rat blood vessels also includes a storage device, which includes a storage frame. The storage frame is installed on the top of the fixed frame, and the bottom wall of the storage frame is provided with a storage groove at one end close to the clamping head. The electric push rod drives the amplifier away from the clamping head and extends into the storage groove.

[0012] Preferably, the clamp applied to rat blood vessels also includes a protective device, which includes a telescopic tube, an inflatable roller curtain and a connecting tube. Both ends of the telescopic tube are blocked, and the telescopic tube includes a plurality of hollow tubes that are slidably and sealed in sequence, and the telescopic tube is installed at the output end of the electric push rod. The amplifier is rotatably installed at the end of the telescopic tube away from the electric push rod. The end of the storage frame close to the clamping head is an open end, and the top of the inflatable roller curtain is installed at the top of the open end. The connecting tube connects the telescopic tube and the inflatable roller curtain, and the electric push rod drives the amplifier to approach the clamping head, and the gas in the inflatable roller curtain is sucked into the telescopic tube, and the inflatable roller curtain is rolled up. The electric push rod drives the amplifier away from the clamping head, and the gas in the telescopic tube is filled into the inflatable roller curtain, and the inflatable roller curtain unfolds and covers the open end.

[0013] Preferably, the storage frame is further provided with a sealing ring, which is circumferentially arranged on the bottom wall and two side walls of the opening end, and the inflatable roller blind is unfolded and circumferentially abuts against the sealing ring.

[0014] Preferably, the clamp applied to rat blood vessels also includes a cleaning device, which includes a rubber box, a liquid outlet pipe, an extrusion plate and a push plate. The rubber box is installed on the fixed frame and stores cleaning liquid inside. One end of the liquid outlet pipe is connected to the rubber box, and the other end extends into the storage frame. The extrusion plate is slidably installed on the fixed frame along the axis of the electric push rod. The push plate is installed on one end of the telescopic tube away from the electric push rod. The electric push rod drives the push plate to push the extrusion plate, and the extrusion plate squeezes the rubber box. The cleaning liquid in the rubber box is sprayed to the amplifier in the storage frame through the liquid outlet pipe.

[0015] Preferably, the cleaning device further comprises a water storage box, which is mounted on the bottom of the receiving frame. An opening is provided on the top of the water storage box, and a through slot communicating with the opening is provided on the receiving frame.

[0016] Preferably, the inner wall of the fixed frame is provided with a slide groove along the axis of the electric push rod, and the extrusion plate includes a first plate and a second plate connected in an L-shape, one end of the first plate is slidably set in the slide groove, one end of the second plate is connected to the first plate, and the other end extends away from the rubber box, and the cleaning device also includes an auxiliary plate and a baffle, the auxiliary plate is arc-shaped, and one end is connected to the first plate, and the other end extends close to the rubber box, and the baffle is installed on the fixed frame and abuts against the end of the rubber box away from the extrusion plate.

[0017] Preferably, the clamp applied to rat blood vessels also includes an air blowing device, which includes an elastic ball and an air blowing tube. The elastic ball is a hollow structure, and the elastic ball connects the fixed frame and the extrusion plate. One end of the air blowing tube is connected to the elastic ball, and the other end extends into the storage frame. The electric push rod drives the push plate to push against the extrusion plate, and the elastic ball is inflated. The electric push rod drives the push plate to separate from the extrusion plate, and the elastic ball blows air toward the storage frame through the air blowing tube.

[0018] Preferably, a clamp is installed on opposite sides of the two clamping heads, and the force sensing element is installed on both clamps;

[0019] The force sensing element includes a thin film sensor, which is installed on opposite sides of the two clamps, and / or the force sensing element includes a micro force sensor, which is installed inside the clamps.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a clamp for rat blood vessels, comprising a clamping device, a monitoring device and an observation device. The clamping device comprises a main body, one end of which is screwed to two symmetrically arranged clamping arms, and the end of the clamping arm away from the main body is screwed to a clamping head. The monitoring device comprises a force sensor and a display screen. The force sensor is installed on the clamping head, the display screen is installed on the main body, and the force sensor is connected to the display screen. The observation device comprises a fixed frame installed on the main body, an electric push rod is installed in the fixed frame, the output end of the electric push rod extends out of the fixed frame, and an amplifier is rotatably installed on the output end of the electric push rod. The electric push rod is configured to drive the amplifier close to or away from the clamping head; the blood vessel is clamped between the two clamping heads, and the clamping arms and the clamping head are detachable and replaceable. The force sensor monitors the force value of the blood vessel during the process of clamping the blood vessel, transmits the obtained force value data to the display screen, and displays and records the force value through the display screen. During the clamping operation, the electric push rod drives the amplifier close to the clamping head to observe the operation, which is convenient for experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 1 is a schematic structural diagram of a clamp applied to a rat blood vessel provided by an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 is a schematic structural diagram of an observation device provided by an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0026] Figure 5 is a partial structural diagram of a positioning assembly provided by an embodiment of the present invention;

[0027] Figure 6 This is a partial structural diagram of a clamp for rat blood vessels provided by an embodiment of the present invention. Figure 1 ;

[0028] Figure 7 This is a schematic diagram of the combination of the telescopic tube and the connecting tube provided in an embodiment of the present invention;

[0029] Figure 8 This is a partial structural diagram of a clamp for rat blood vessels provided by an embodiment of the present invention. Figure 2 ;

[0030] Figure 9 It is a partial structural diagram of the blowing device provided in an embodiment of the present invention.

[0031] In the picture:

[0032] 11. Main body; 12. Clamping arm; 13. Clamping head; 14. Clamp;

[0033] 21. Force sensor; 22. Display screen;

[0034] 31. Fixing frame; 311. Slide groove; 32. Electric push rod; 33. Amplifier; 34. Connecting block; 35. Positioning plate; 351. Positioning hole; 36. Fixing column; 361. Cavity; 37. Spring; 38. Sliding plate; 39. Positioning ball;

[0035] 41. Storage frame; 411. Through slot; 42. Corrugated plate; 43. Sealing ring;

[0036] 51. Telescopic tube; 52. Inflatable roller shutter; 53. Connecting tube;

[0037] 61. Rubber box; 62. Liquid outlet pipe; 63. Extrusion plate; 64. Water storage box; 65. Baffle; 66. Auxiliary plate;

[0038] 71. Elastic ball; 72. Air blow pipe; 721. Fixing groove; 73. Cover plate; 74. Fixing rod. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0040] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0043] This embodiment provides a clamp for rat blood vessels, which facilitates replacement of clamping parts, can monitor the force value of the blood vessels in real time, accurately observe the blood vessel conditions, and facilitate experimental operations.

[0044] See also Figures 1 to 9 The clamp provided in this embodiment for use on rat blood vessels includes a clamping device, a monitoring device, and an observation device. The clamping device is used to clamp the blood vessel, and the components used for clamping are detachable and replaceable. The monitoring device is used to monitor the force value of the blood vessel in real time to assist in the operation. The observation device is used to accurately observe the condition of the blood vessel during the clamping operation to facilitate the operation of the experimenter.

[0045] See also Figure 1 and Figure 2 The clamping device includes a body 11, one end of which is screwed to two clamping arms 12. The two clamping arms 12 are symmetrically arranged. The ends of the clamping arms 12 away from the body 11 are screwed to a clamping head 13, clamping the blood vessel between the two clamping heads 13. This arrangement allows for quick replacement of the clamping arms 12 and clamping heads 13. During operation, the clamping heads 13 mounted on the clamping arms 12 are adjusted using screws, and the clamping arms 12 mounted on the body 11 are then screwed to adjust the clamping heads 13 and arms 12 appropriately to clamp the blood vessel.

[0046] Optionally, a clamp 14 is installed on opposite sides of the two clamping heads 13. The clamp 14 is made of flexible material. The blood vessel can be stably clamped between the two clamping heads 13 to improve the clamping stability and prevent the clamping operation from damaging the blood vessel.

[0047] Optionally, a light source is provided at one end of the body 11 close to the clamping arm 12, and the light source is activated to provide auxiliary lighting when clamping a blood vessel, thereby assisting the operation.

[0048] Specifically, see Figure 1 The monitoring device includes a force sensor 21, which is installed on the clamping head 13. Furthermore, the force sensor 21 is installed on the clamp 14 and is used to monitor the force value of the blood vessel during the clamping process. Furthermore, both clamps 14 are equipped with force sensors 21 to improve the reliability of the data.

[0049] See also Figure 1 The monitoring device also includes a display screen 22, which is installed on the main body 11. The force sensor 21 is connected to the display screen 22. The force sensor 21 can transmit the obtained force value data to the display screen 22, and display and record the force value through the display screen 22 to achieve intelligent visualization.

[0050] The force sensing element 21 includes at least one of a thin film sensor and a miniature force sensor. In this embodiment, thin film sensors are installed on opposite sides of the two clamps 14, and miniature force sensors are installed inside the two clamps 14. The thin film sensors and miniature force sensors are both connected to the display screen 22. When the clamps 14 clamp the blood vessels, the thin film sensors and miniature force sensors are used to monitor and collect the force values, and display and record them on the display screen 22.

[0051] This embodiment also installs a Bluetooth module and a signal receiving module inside the main body 11. The thin film sensor and the micro force sensor are both connected to the signal receiving module, and the signal receiving module is connected to the Bluetooth module. The Bluetooth module can transmit and share data related to the force value, thereby facilitating learning and continuously improving the quality of the experiment.

[0052] See also Figure 1 and Figure 3 The observation device includes a fixed frame 31, which is installed on the main body 11. Preferably, the fixed frame 31 is installed on the top of the main body 11. An electric push rod 32 is installed in the fixed frame 31, and the output end of the electric push rod 32 extends out of the fixed frame 31. Furthermore, an amplifier 33 is installed at the output end of the electric push rod 32. During the clamping operation, the electric push rod 32 is started and the amplifier 33 is driven close to the clamping head 13 to observe the operation on the blood vessel. After the clamping operation is completed, the electric push rod 32 is started and the amplifier 33 is driven away from the clamping head 13 to prevent accidental touch.

[0053] In this embodiment, the display screen 22 is installed on the top of the fixed frame 31 to facilitate intuitive viewing of data.

[0054] In some feasible embodiments, the amplifier 33 is rotatably mounted on the output end of the electric push rod 32 so as to adjust the angle of the amplifier 33 so that the amplifier 33 is aligned with the blood vessel clamped by the two clamps 14 .

[0055] Specifically, the observation device further includes a positioning component, which is used to realize the rotation of the amplifier 33 and the positioning thereof at a proper angle.

[0056] For example, see Figure 4 and Figure 5The positioning assembly includes a connecting block 34, which is mounted on the output end of the electric push rod 32, and the amplifier 33 is rotatably mounted on the top of the connecting block 34. Furthermore, two positioning plates 35 are relatively arranged on the top of the connecting block 34, and the amplifier 33 is arranged between the two positioning plates 35. A plurality of positioning holes 351 are provided on the opposite sides of the two positioning plates 35. The plurality of positioning holes 351 on the positioning plates 35 are distributed in a ring shape, and a fixing column 36 is installed on the handle of the amplifier 33. Preferably, the axis of the fixing column 36 is perpendicular to the axis of the handle of the amplifier 33. Further, a cavity 361 is provided at the end of the fixing column 36 away from the amplifier 33, and the interior of the cavity 361 is slidably connected to the sliding disk 38 by a spring 37, that is, the two ends of the spring 37 are respectively connected to the bottom of the cavity 361 and the sliding disk 38, and the end of the cavity 361 is clamped with a positioning ball 39. The spring 37 is used to push the sliding disk 38, driving at least part of the positioning ball 39 to be embedded in any positioning hole 351.

[0057] Through the above arrangement, external force is applied to rotate the amplifier 33, which drives the fixed column 36 to rotate. The positioning ball 39 disengages from the positioning hole 351 and is squeezed to slide and retract into the cavity 361. The sliding plate 38 squeezes the spring 37 and cooperates with the positioning ball 39 to slide and retract into the cavity 361. When the amplifier 33 is rotated to the appropriate angle, at least part of the positioning ball 39 is embedded in the positioning hole 351 at that position, and the sliding plate 38 is reset under the action of the spring 37.

[0058] Preferably, a side of the sliding plate 38 away from the spring 37 is in contact with the positioning ball 39 . Furthermore, the positioning ball 39 is made of rubber.

[0059] The clamper for rat blood vessels provided in this embodiment further includes a receiving device for receiving the amplifier 33 after the clamping operation is completed to prevent accidental touch.

[0060] See also Figure 1 、 Figure 6 and Figure 8 The storage device includes a storage frame 41, which is installed on the top of the fixed frame 31, and the end of the storage frame 41 close to the clamping head 13 is set as an open end so that the amplifier 33 can enter the storage frame 41. Furthermore, the bottom wall of the storage frame 41 is provided with a storage groove at the end close to the clamping head 13, and the electric push rod 32 drives the amplifier 33 away from the clamping head 13 and extends into the storage groove, thereby completing the storage of the amplifier 33.

[0061] In other feasible embodiments, the wall of the storage slot is slidably connected to two symmetrically arranged corrugated plates 42 via elastic ropes. The corrugated plates 42 are made of a bellows material and are capable of deformation. The two corrugated plates 42 are arranged in sequence in a direction perpendicular to the output shaft of the electric push rod 32, and each of the two corrugated plates 42 has a notch at one end adjacent to the other. The two notches cooperate to form a receiving hole that matches the shape of the amplifier 33. Through this arrangement, the electric push rod 32 gradually approaches the storage slot with the amplifier 33. The amplifier 33 contacts the two corrugated plates 42, which are squeezed and deformed, allowing the amplifier 33 to enter. The amplifier 33 enters the receiving hole and fits in. At this point, the top of the amplifier 33 is inside the storage frame 41, further enhancing the protection of the amplifier 33.

[0062] The clamp provided in this embodiment for use in rat blood vessels further includes a protective device for further protecting the amplifier 33 .

[0063] See also Figures 6 to 8 The protective device includes a telescopic tube 51, an inflatable roller shutter 52 and a connecting tube 53. Both ends of the telescopic tube 51 are blocked. The telescopic tube 51 is formed by a plurality of hollow tubes which are slidably and sealed in sequence, and the interiors of the plurality of hollow tubes are connected through circular holes. The hollow tube has an interlayer, and the hollow tube sliding sealing sleeve is arranged in the interlayer of another adjacent hollow tube. The telescopic tube 51 is installed at the output end of the electric push rod 32. Adaptively, the connecting block 34 is installed at the end of the telescopic tube 51 away from the electric push rod 32. Furthermore, the top of the inflatable roller shutter 52 is installed at the top of the open end. The connecting tube 53 connects the telescopic tube 51 and the inflatable roller shutter 52. The inflatable roller shutter 52 has two states. In the negative pressure state, the inflatable roller shutter 52 is rolled up. In the positive pressure state, the inflatable roller shutter 52 is unfolded and covers the open end.

[0064] Through the above arrangement, during the clamping operation, the electric push rod 32 drives the amplifier 33 to approach the clamping head 13, the telescopic tube 51 gradually extends, and the gas in the inflatable roller curtain 52 is sucked into the telescopic tube 51 by the connecting tube 53, so that the inflatable roller curtain 52 is rolled up, and the auxiliary amplifier 33 extends out of the storage frame 41. After the clamping operation is completed, the electric push rod 32 drives the amplifier 33 away from the clamping head 13, the telescopic tube 51 gradually shortens, and the gas in the telescopic tube 51 is squeezed and filled into the inflatable roller curtain 52 through the connecting tube 53, and the inflatable roller curtain 52 gradually unfolds. When the amplifier 33 enters the storage frame 41, the inflatable roller curtain 52 is fully unfolded and covers the open end, and then the unfolded inflatable roller curtain 52 further protects the amplifier 33.

[0065] The clamper for rat blood vessels provided in this embodiment further includes a cleaning device for cleaning the amplifier 33 after the clamping operation is completed.

[0066] See also Figure 3 and Figure 6The cleaning device includes a rubber box 61, a liquid outlet pipe 62, a squeezing plate 63 and a pushing plate. The rubber box 61 is installed in the fixed frame 31 and stores cleaning liquid inside. One end of the liquid outlet pipe 62 is connected to the rubber box 61, and the other end extends into the storage frame 41. The squeezing plate 63 is slidably installed on the fixed frame 31. The sliding direction of the squeezing plate 63 is parallel to the output axis of the electric push rod 32. The pushing plate is installed at the end of the telescopic tube 51 away from the electric push rod 32. Optionally, the pushing plate can also be installed on the connecting block 34.

[0067] Through the above arrangement, after completing the clamping operation, the electric push rod 32 drives the amplifier 33 to enter the storage frame 41. The electric push rod 32 is started again to make it slide excessively into the fixed frame 31. The pushing plate pushes against the squeezing plate 63. The squeezing plate 63 squeezes the rubber box 61. The cleaning liquid in the rubber box 61 is sprayed to the amplifier 33 in the storage frame 41 through the liquid outlet pipe 62 to clean the amplifier 33.

[0068] See also Figure 6 and Figure 8 The storage frame 41 is also provided with a sealing ring 43, which is circumferentially arranged on the bottom wall and two side walls of the opening end. After the inflatable roller shutter 52 is fully unfolded, it circumferentially abuts against the sealing ring 43 to seal the storage frame 41, thereby preventing the cleaning liquid from leaking when cleaning the amplifier 33.

[0069] Further, see Figure 6 and Figure 8 The cleaning device also includes a water storage box 64, which is installed on the bottom of the storage frame 41 by bolts, and an opening is provided on the top of the water storage box 64. The storage frame 41 has a through groove 411 connected to the opening. The cleaning liquid after flushing flows into the storage frame 41 through the through groove 411 for collection, so as to avoid the cleaning liquid from flowing out directly after use and affecting normal use.

[0070] Preferably, the storage frame 41 is made of a transparent material so that the cleaning status of the amplifier 33 can be observed in time.

[0071] In this embodiment, two rubber boxes 61 are provided, and the two rubber boxes 61 are respectively provided on both sides of the electric push rod 32 . Adaptively, two squeezing plates 63 are correspondingly provided, respectively used to squeeze the two rubber boxes 61 .

[0072] Preferably, a one-way valve is installed on the liquid outlet pipe 62, and the flow direction of the one-way valve is directed from the rubber box 61 to the storage frame 41 to prevent the cleaning liquid from flowing back.

[0073] Further preferably, the rubber box 61 is also provided with a liquid inlet pipe connected to the interior thereof for replenishing the cleaning liquid. Similarly, a one-way valve is installed on the liquid inlet pipe, the flow direction of which is directed from the outside to the rubber box 61 to prevent the cleaning liquid from flowing back.

[0074] In this embodiment, a sliding groove 311 is provided on the inner wall of the fixed frame 31. The sliding groove 311 is arranged along the axis of the electric push rod 32. The extrusion plate 63 includes a first plate and a second plate connected in an L-shape. One end of the first plate is slidably set in the sliding groove 311. One end of the second plate is connected to the first plate, and the other end extends away from the rubber box 61. The pushing plate pushes against the second plate, thereby squeezing the rubber box 61.

[0075] The cleaning device provided in this embodiment further includes a baffle 65 , which is mounted on the fixing frame 31 and abuts against one end of the rubber box 61 away from the extrusion plate 63 . When the extrusion plate 63 squeezes the rubber box 61 , the baffle 65 presses against the rubber box 61 to prevent it from shifting.

[0076] The cleaning device provided in this embodiment also includes an auxiliary plate 66. The auxiliary plate 66 has an arc-shaped structure. One end of the auxiliary plate 66 is connected to the first plate, and the other end extends close to the rubber box 61. The end of the auxiliary plate 66 close to the rubber box 61 is closer to the electric push rod 32 than the end away from the rubber box 61. As a result, when the extrusion plate 63 drives the auxiliary plate 66 to squeeze the rubber box 61, the rubber box 61 can be pushed against the inner wall of the fixed frame 31, effectively squeezing the rubber box 61 so that it can quickly spray out the cleaning liquid.

[0077] The clamp provided in this embodiment for use in rat blood vessels also includes an air blowing device for quickly blowing off and drying the residual cleaning fluid on the amplifier 33, thereby preventing the mirror surface of the amplifier 33 from being corroded and discolored due to the residual cleaning fluid. At the same time, it can also effectively prevent the residual cleaning fluid from leaving stains after drying, resulting in blurred vision and affecting subsequent observations.

[0078] See also Figure 3 、 Figure 6 、 Figure 8 and Figure 9 The blowing device includes an elastic ball 71 and an air blowing pipe 72. The elastic ball 71 is a hollow structure, and the elastic ball 71 connects the fixed frame 31 and the extrusion plate 63. One end of the air blowing pipe 72 is connected to the elastic ball 71, and the other end extends into the storage frame 41.

[0079] Through the above arrangement, during the cleaning process, the squeezing plate 63 drives the elastic ball 71 to deform when sliding, and then pulls the deflated elastic ball 71 and fills it with gas through the blowing tube 72. After the cleaning work is completed, the electric push rod 32 is started again to drive the amplifier 33 to reset to the initial storage position. The squeezing plate 63 is no longer subjected to pressure. At this time, the elastic ball 71 drives the squeezing plate 63 to reset, and at the same time, the gas in the elastic ball 71 is blown out through the blowing tube 72, thereby blowing off and drying the cleaning liquid remaining on the amplifier 33.

[0080] Furthermore, the end of the air tube 72 extending into the storage frame 41 is pivotally connected to a cover plate 73 via a torsion spring. A curved fixing rod 74 is fixedly mounted on the side of the cover plate 73 facing away from the air tube 72. Furthermore, a curved fixing groove 721 is formed on the surface of the air tube 72. With this arrangement, the gas within the elastic ball 71, when blown out through the air tube 72, blows against the cover plate 73. The cover plate 73 then rotates the fixing rod 74, which is then inserted into the fixing groove 721 for temporary fixation, thereby facilitating the gas flow toward both sides of the amplifier 33.

[0081] It should be noted that the restoring force of the torsion spring is set to be greater than the friction force between the fixing rod 74 and the fixing groove 721, so that after the blowing pipe 72 stops blowing out gas, the fixing rod 74 and the cover plate 73 are slowly reset under the action of the torsion spring, and the port of the blowing pipe 72 is re-covered, reducing the cleaning liquid and impurities from entering the blowing pipe 72, thereby contaminating the blowing pipe 72.

[0082] Preferably, a gap is provided between the cover plate 73 and the port of the air blowing pipe 72 , and the cover plate 73 does not completely cover the port of the air blowing pipe 72 .

[0083] When the clamp provided in this embodiment is used for rat blood vessels:

[0084] First, the clamping head 13 mounted on the clamping arm 12 is adjusted by screws, and then the clamping arm 12 mounted on the body 11 is adjusted by screws so that the clamping head 13 and the clamping arm 12 can be properly adjusted to clamp the blood vessel. When the clamp 14 clamps the blood vessel, a light source is activated to provide auxiliary lighting to assist the operation. At the same time, a thin film sensor and a micro force sensor are used to monitor and collect the force value, which is displayed and recorded on the display screen 22.

[0085] The electric push rod 32 is started, driving the amplifier 33 to move in the direction close to the clamp 14, and the telescopic tube 51 gradually extends. The gas in the inflatable roller curtain 52 is sucked into the telescopic tube 51 by the connecting tube 53, causing the inflatable roller curtain 52 to roll up, and the auxiliary amplifier 33 extends out of the storage frame 41. When the amplifier 33 moves to the appropriate position, an external force is applied to rotate the amplifier 33, driving the fixing column 36 to rotate, and the positioning ball 39 is disengaged from the positioning hole 351 and is squeezed to slide and retract into the cavity 361. The sliding plate 38 squeezes the spring 37 and cooperates with the positioning ball 39 to slide and retract into the cavity 361. When the amplifier 33 is rotated to the appropriate angle, at least a part of the positioning ball 39 is embedded in the positioning hole 351 at that position, and the sliding plate 38 is reset under the action of the spring 37, thereby enabling more accurate observation of the blood vessels and facilitating operation by the experimenter.

[0086] When the experiment is completed and the amplifier 33 is no longer needed, the amplifier 33 is rotated and adjusted to a position perpendicular to the connecting block 34. The electric push rod 32 drives the amplifier 33 to gradually approach and enter the storage slot. The amplifier 33 contacts the two corrugated plates 42. The corrugated plates 42 are squeezed and deformed, allowing the amplifier 33 to enter until the amplifier 33 enters the receiving hole and fits in. At this time, the top end of the amplifier 33 is in the storage frame 41, protecting the amplifier 33. At the same time, the gas in the telescopic tube 51 is squeezed and filled into the inflatable roller shutter 52 through the connecting tube 53. When the amplifier 33 enters the storage frame 41, the inflatable roller shutter 52 is fully unfolded and covers the open end, further protecting the amplifier 33.

[0087] After the clamping operation is completed, the electric push rod 32 drives the amplifier 33 into the receiving frame 41. The electric push rod 32 is started again, causing it to slide excessively into the fixed frame 31, and drives the squeezing plate 63 and the auxiliary plate 66 to squeeze the rubber box 61. The cleaning liquid in the rubber box 61 is sprayed to the amplifier 33 in the receiving frame 41 through the liquid outlet pipe 62 to clean the amplifier 33. The rinsed cleaning liquid flows into the receiving frame 41 through the through groove 411 for collection.

[0088] After the cleaning work is completed, the electric push rod 32 is started again to drive the amplifier 33 to reset to the initial storage position. The squeezing plate 63 is no longer under pressure. At this time, the elastic ball 71 drives the squeezing plate 63 to reset. At the same time, the gas in the elastic ball 71 is blown out through the air pipe 72, thereby blowing off and drying the residual cleaning liquid on the amplifier 33.

[0089] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A clamp for rat blood vessels, characterized in that: include: A clamping device, comprising a body (11), one end of the body (11) being screwed to two symmetrically arranged clamping arms (12), one end of the clamping arm (12) away from the body (11) being screwed to a clamping head (13), and a blood vessel being clamped between the two clamping heads (13); A monitoring device, the monitoring device comprising a force sensor (21) and a display screen (22), the force sensor (21) being mounted on the clamping head (13), the force sensor (21) being used to monitor the force value of the blood vessel, the display screen (22) being mounted on the body (11), the force sensor (21) being connected to the display screen (22), the display screen (22) being used to display the force value; An observation device comprises a fixed frame (31), the fixed frame (31) is mounted on the body (11), an electric push rod (32) is mounted in the fixed frame (31), an output end of the electric push rod (32) extends out of the fixed frame (31), and an amplifier (33) is rotatably mounted on the output end of the electric push rod (32), and the electric push rod (32) is configured to drive the amplifier (33) to move closer to or away from the clamping head (13).

2. The clamp for rat blood vessels according to claim 1, characterized in that: The observation device includes a positioning assembly, which includes a connecting block (34). The connecting block (34) is installed at the output end of the electric push rod (32). Two positioning plates (35) are relatively arranged on the top of the connecting block (34). The amplifier (33) is arranged between the two positioning plates (35) and is rotatably installed on the connecting block (34). A plurality of positioning holes (351) distributed in a ring shape are provided on the opposite sides of the two positioning plates (35). A fixing column (36) is installed on the handle of the amplifier (33). A cavity (361) is provided at one end of the fixing column (36) away from the amplifier (33). The interior of the cavity (361) is slidably connected to a sliding disk (38) through a spring (37). A positioning ball (39) is wedge-shaped at the end of the cavity (361). The spring (37) is used to push the sliding disk (38) to drive at least part of the positioning ball (39) to be embedded in any one of the positioning holes (351).

3. The clamp for rat blood vessels according to claim 1, characterized in that: The clamp applied to rat blood vessels also includes a receiving device, which includes a receiving frame (41). The receiving frame (41) is installed on the top of the fixed frame (31). The bottom wall of the receiving frame (41) is provided with a receiving groove at one end close to the clamping head (13). The electric push rod (32) drives the amplifier (33) away from the clamping head (13) and extends into the receiving groove.

4. The clamp for rat blood vessels according to claim 3, characterized in that: The clamp for rat blood vessels also includes a protective device, which includes a telescopic tube (51), an inflatable roller curtain (52) and a connecting tube (53). Both ends of the telescopic tube (51) are blocked. The telescopic tube (51) includes a plurality of hollow tubes that are sequentially slidably sealed. The telescopic tube (51) is installed at the output end of the electric push rod (32). The amplifier (33) is rotatably installed at one end of the telescopic tube (51) away from the electric push rod (32). The end of the storage frame (41) close to the clamping head (13) is an open end. The inflatable roller curtain (52) is a hollow tube that is sequentially slidably sealed. 2) is installed on the top of the open end, the connecting pipe (53) is connected to the telescopic tube (51) and the inflatable roller curtain (52), the electric push rod (32) drives the amplifier (33) to approach the clamping head (13), the gas in the inflatable roller curtain (52) is sucked into the telescopic tube (51), the inflatable roller curtain (52) is rolled up, the electric push rod (32) drives the amplifier (33) away from the clamping head (13), the gas in the telescopic tube (51) is filled into the inflatable roller curtain (52), and the inflatable roller curtain (52) is unfolded and covers the open end.

5. The clamp for rat blood vessels according to claim 4, characterized in that: The storage frame (41) is further provided with a sealing ring (43), which is circumferentially arranged on the bottom wall and two side walls of the opening end. The inflatable roller blind (52) is unfolded and circumferentially abuts against the sealing ring (43).

6. The clamp for rat blood vessels according to claim 4, characterized in that: The clamp for rat blood vessels also includes a cleaning device, which includes a rubber box (61), a liquid outlet pipe (62), an extrusion plate (63) and a push plate. The rubber box (61) is installed on the fixed frame (31) and stores cleaning liquid therein. One end of the liquid outlet pipe (62) is connected to the rubber box (61), and the other end extends into the storage frame (41). The extrusion plate (63) is slidably installed on the fixed frame (31) along the axis of the electric push rod (32). The push plate is installed on one end of the telescopic tube (51) away from the electric push rod (32). The electric push rod (32) drives the push plate to push against the extrusion plate (63). The extrusion plate (63) squeezes the rubber box (61). The cleaning liquid in the rubber box (61) is sprayed to the amplifier (33) in the storage frame (41) through the liquid outlet pipe (62).

7. The clamp for rat blood vessels according to claim 6, characterized in that: The cleaning device further comprises a water storage box (64), wherein the water storage box (64) is mounted on the bottom of the receiving frame (41), an opening is provided on the top of the water storage box (64), and a through slot (411) communicating with the opening is provided on the receiving frame (41).

8. The clamp for rat blood vessels according to claim 6, characterized in that: The inner wall of the fixed frame (31) is provided with a slide groove (311) along the axis of the electric push rod (32); the extrusion plate (63) includes a first plate and a second plate connected in an L-shape, one end of the first plate is slidably arranged in the slide groove (311), one end of the second plate is connected to the first plate, and the other end extends away from the rubber box (61); the cleaning device also includes an auxiliary plate (66) and a baffle (65); the auxiliary plate (66) is arc-shaped, and one end is connected to the first plate, and the other end extends close to the rubber box (61); the baffle (65) is installed on the fixed frame (31) and abuts against one end of the rubber box (61) away from the extrusion plate (63).

9. The clamp for rat blood vessels according to claim 6, characterized in that: The clamp for rat blood vessels further comprises an air blowing device, the air blowing device comprising an elastic ball (71) and an air blowing tube (72), the elastic ball (71) being a hollow structure, and the elastic ball (71) connecting the fixed frame (31) and the extrusion plate (63), one end of the air blowing tube (72) being connected to the elastic ball (71), and the other end extending into the receiving frame (41), the electric push rod (32) driving the pushing plate to push against the extrusion plate (63), the elastic ball (71) being inflated, the electric push rod (32) driving the pushing plate to separate from the extrusion plate (63), and the elastic ball (71) blowing air toward the receiving frame (41) through the air blowing tube (72).

10. A clamp for use in rat blood vessels according to any one of claims 1 to 9, characterized in that: A clamp (14) is installed on one side opposite to the two clamping heads (13), and the force sensing element (21) is installed on both clamps (14); The force sensing element (21) includes a thin film sensor, which is installed on opposite sides of the two clamps (14), and / or the force sensing element (21) includes a micro force sensor, which is installed inside the clamps (14).

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