CN112190775A

CN112190775A - Blood bag clamping device

Info

Publication number: CN112190775A
Application number: CN202011186094.8A
Authority: CN
Inventors: 嵐山芮; 邓刚
Original assignee: Zhejiang Lyukou Biotechnology Co ltd
Current assignee: Zhejiang Lyukou Biotechnology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-01-08

Abstract

The application discloses blood bag clamping device relates to the technical field of blood separation. The blood bag clamping device comprises a fixed support, a clamping structure, a pressing piece and a moving mechanism, wherein the fixed support comprises an upright post and a bottom plate arranged at the bottom of the upright post; the pressing piece is used for pressing the second clamping plate; the moving mechanism is arranged on the fixed support and is in transmission connection with the pressing piece, and is used for driving the pressing piece to move towards the direction close to or away from the stand column. So this application can be through first splint, second splint and compress tightly the piece and centre gripping blood bag and extrusion blood bag.

Description

Blood bag clamping device

Technical Field

The application relates to the technical field of blood separation, particularly to a blood bag clamping device.

Background

The blood is divided into three layers after centrifugation, wherein the uppermost layer is a plasma layer, the lowermost layer is a red blood cell layer, and the middle layer is a white membrane layer which mainly comprises platelets and white blood cells. The separated blood components are widely used in clinical treatment. Because each component in the whole blood plays different roles in the human body, sometimes a hospital or a blood station only needs to provide one or two components of the blood for a patient according to the requirements of disease treatment, so that the blood is multipurpose, and the blood resource is better saved. High quality blood component separation is therefore important.

Disclosure of Invention

It is an object of the present application to provide a blood bag clamping device which is capable of clamping a blood bag by means of a first clamping plate and a second clamping plate.

The embodiment of the application is realized as follows:

a blood bag clamping device comprises a fixed support, a clamping structure, a pressing piece and a moving mechanism, wherein the fixed support comprises an upright post and a bottom plate arranged at the bottom of the upright post; the pressing piece is used for pressing the second clamping plate; the moving mechanism is arranged on the fixed support and is in transmission connection with the pressing piece, and is used for driving the pressing piece to move towards the direction close to or away from the stand column.

In one embodiment, the first clamping plate and the second clamping plate are arranged in parallel.

In one embodiment, the moving mechanism comprises a tension turntable, a pressing piece, at least one first guide rod, at least one first guide hole, at least one support rod and at least one elastic piece, wherein the tension turntable is arranged on the bottom plate, and a pull rope is arranged on the tension turntable; the pressing piece is connected with the pull rope, and at least one first guide hole is formed in the pressing piece; one end of the first guide rod is connected with the upright post, the other end of the first guide rod penetrates through the first guide hole, and the support rod is connected with the pressing piece; one end of the elastic piece is connected with the supporting rod, and the other end of the elastic piece is connected with the upright post.

In an embodiment, the pressing member is provided with a pressing plate, and the pressing plate is used for abutting against the second clamping plate.

In one embodiment, the second clamping plate has a third surface facing the pressing plate, and the pressing plate has a fourth surface facing the second clamping plate; the third surface is convexly provided with a first limiting strip, the fourth surface is convexly provided with a second limiting strip, and the first limiting strip and the second limiting strip are staggered with each other; when the third surface is laminated with the fourth surface, the side of the first limiting strip can be abutted against the side of the pressing plate, and the side of the second limiting strip can be abutted against the side of the second clamping plate.

In one embodiment, the first guide rod, the support rod and the tension turntable are all arranged on one side of the clamping structure, and the pull rope and the pressing plate are respectively connected to two ends of the pressing piece.

In one embodiment, there are two first guide rods, the two first guide rods are arranged at intervals, and correspondingly, there are two first guide holes.

In one embodiment, the pressing member is provided with a connecting hole for connecting the pull rope, and the connecting hole is arranged between the two first guide holes.

In one embodiment, the fixed support is provided with a cavity and a first through hole communicated with the cavity, the elastic element is arranged in the cavity, and the support rod penetrates through the first through hole and is connected with the elastic element; a first supporting rod is fixed in the cavity, one end of the elastic piece is connected with the supporting rod, and the other end of the elastic piece is connected with the first supporting rod;

in one embodiment, there are two support rods, the two support rods are spaced from each other, and correspondingly, there are two elastic members.

In one embodiment, the fixed support is provided with a second communication hole communicated with the cavity, a second support rod is fixed in the cavity, and the first guide rod penetrates through the second communication hole to be connected with the second support rod.

In one embodiment, the base plate and the posts are disposed perpendicular to each other.

In one embodiment, the tension turntable comprises a fixed bracket, a rotating shaft, a rotating wheel and a rocker arm, wherein the fixed bracket is arranged on the bottom plate; the rotating shaft can be rotatably arranged on the fixed bracket; the rotating wheel is arranged on the rotating shaft, and the pull rope is arranged on the rotating wheel; the rocker arm is arranged on the rotating shaft.

In one embodiment, the upper surface of the fixing bracket is provided with a positioning groove, the rotating wheel is arranged in the positioning groove, the fixing bracket is respectively provided with a shaft hole communicated with the positioning groove on two opposite side surfaces, and the rotating shaft can be rotatably arranged in the two shaft holes in a penetrating way.

In one embodiment, the connecting mechanism comprises at least one second guide hole and at least one second guide rod, and the second guide hole is arranged on the second clamping plate; the second guide rod is arranged on the first clamping plate, one end of the second guide rod is connected with the first clamping plate, and the other end of the second guide rod penetrates through the second guide hole.

In one embodiment, the second guide rods are provided in plurality, the plurality of second guide rods are arranged at intervals, and correspondingly, the plurality of second guide holes are provided.

In one embodiment, the bottom of the second splint is provided with a hanging portion, and the hanging portion is provided with at least one fixing groove for fixing the blood bag conduit.

Compared with the prior art, the beneficial effect of this application is:

the space that is used for centre gripping blood bag is formed between first splint and the second splint of this application, and this application can compress tightly a removal through the moving mechanism drive, compresses tightly a removal and can compress tightly the second splint for the blood bag is fixed between first splint and second splint. So this application can be through first splint and second splint centre gripping blood bag.

This application can also be through the displacement distance that moving mechanism control compressed tightly the piece, adjust clearance between first splint and the second splint to control this space size, be used for extrudeing or relaxing the blood bag in the space. So this application can come centre gripping blood bag and extrusion blood bag through first splint, second splint and compress tightly the piece to can carry the blood of layering in the blood bag to other storage bags in proper order, realize the separation of blood.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural view of a blood bag holding device according to an embodiment of the present application.

Fig. 2 is a partial schematic structural view of a blood bag holding device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a blood bag holding device according to an embodiment of the present application.

Fig. 4 is a front view of a blood bag holding device according to an embodiment of the present application.

Fig. 5 is a sectional view taken along a line a-a of fig. 4 according to an embodiment of the present application.

Fig. 6 is an exploded view of a portion of the structure of a blood bag holding device according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a clamping structure according to an embodiment of the present application.

Fig. 8 is a front view of a clamp structure according to an embodiment of the present application.

FIG. 9 is a cross-sectional view taken in the direction B-B of FIG. 8, in accordance with an embodiment of the present application.

Fig. 10 is a partial schematic structural view of a blood bag holding device according to an embodiment of the present application.

Icon: 1-a blood bag holding device; 100-fixed support; 110-a cavity; 120-a first via hole; 130-a second communication hole; 140-a first strut; 150-a second strut; 160-a first separator; 170-a second separator; 180-a connector; 101-a column; 102-a backplane; 200-a clamping structure; 210-a first splint; 211 — a first surface; 220-a second splint; 221-a second surface; 222-a hanging portion; 223-fixing grooves; 230-a connection mechanism; 231-second guide holes; 232-a second guide bar; 2321-a profile bar; 2322-polished rod; 240-a limiter; 241-a limiting sleeve; 242-backing ring; 300-a compression member; 310-connecting hole; 320-a pressing plate; 321-a fixing plate; 322-a first fastener; 400-a moving mechanism; 410-tension turntable; 411-a draw cord; 412-a fixed support; 413-a positioning groove; 414-shaft hole; 415-a rotating shaft; 4151-square shaft head; 416-a wheel; 417-a rocker arm; 418-a second sleeve; 419-a second fastener; 420-a first pilot hole; 430-a first guide bar; 431-a first sleeve; 440-a support bar; 450-an elastic member; 224-a third surface; 225-a first stop bar; 324-a fourth surface; 325-second stop strip.

Detailed Description

The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Please refer to fig. 1, which is a schematic structural diagram of a blood bag clamping device 1 according to an embodiment of the present application. A blood bag clamping device 1 comprises a fixed support 100, a clamping structure 200, a pressing piece 300 and a moving mechanism 400, wherein the fixed support 100 comprises a vertical column 101 and a bottom plate 102 arranged at the bottom of the vertical column 101. The base plate 102 and the upright 101 are arranged perpendicular to each other.

The clamping structure 200 comprises a connecting mechanism 230 and a first clamping plate 210 and a second clamping plate 220 which are oppositely arranged, the first clamping plate 210 is fixed on the fixing support 100, the second clamping plate 220 is connected with the first clamping plate 210 through the connecting mechanism 230, and the second clamping plate 220 can move towards the direction close to or away from the first clamping plate 210; the compressing member 300 is used for compressing the second splint 220, so as to compress the blood bag between the first splint 210 and the second splint 220; the moving mechanism 400 is disposed on the fixed support 100 and is in transmission connection with the pressing member 300, and is used for driving the pressing member 300 to move toward or away from the upright 101. When the clamping structure 200 is disposed between the pressing member 300 and the upright 101, the first clamping plate 210 is close to or abuts against the upright 101, and the pressing member 300 can drive the second clamping plate 220 to move relatively toward or away from the first clamping plate 210.

In the embodiment, a space for clamping the blood bag is formed between the first clamping plate 210 and the second clamping plate 220, the moving mechanism 400 can drive the pressing member 300 to move, and the pressing member 300 can press the second clamping plate 220, so that the blood bag is fixed between the first clamping plate 210 and the second clamping plate 220. The blood bag can be clamped by the first clamping plate 210 and the second clamping plate 220.

The embodiment can also adjust the gap between the first clamping plate 210 and the second clamping plate 220 by controlling the moving distance of the pressing member 300 through the moving mechanism 400, thereby controlling the size of the space for pressing or loosening the blood bag in the space. Therefore, the embodiment can sequentially convey the blood layered in the blood bag to other storage bags in a squeezing mode to realize the separation of the blood. Therefore, the embodiment can be applied to the compression and separation of blood bags, such as cord blood bag compression and separation.

In an operation process, a blood bag is placed between a first clamping plate 210 and a second clamping plate 220, the clamping structure 200 with the blood bag is placed into a centrifuge for centrifugation, after centrifugation, the clamping structure 200 with the blood bag is taken out and placed between a pressing member 300 and a column 101, wherein the first clamping plate 210 faces the column 101, the second clamping plate 220 faces the pressing member 300, the pressing member 300 is driven by a moving mechanism 400 to move towards the direction close to the column 101, the pressing member 300 is made to abut against the second clamping plate 220, the first clamping plate 210 abuts against the column 101, so that the clamping structure 200 is clamped between the pressing member 300 and the column 101, then the moving mechanism 400 is continued to drive the pressing member 300 to move towards the direction close to the column 101, so that the second clamping plate 220 moves towards the direction close to the first clamping plate 210 along with the pressing member 300, and the gap between the first clamping plate 210 and the second clamping plate 220 is gradually reduced, generates extrusion force on the blood bag, thereby promoting the layered blood in the blood bag to be conveyed out by the blood tube so as to achieve the effect of separating blood.

In this embodiment, the connecting mechanism 230 is a rod hole matching structure or a sliding rail and sliding block matching structure, the first clamping plate 210 and the second clamping plate 220 are arranged in parallel, and the application of force is uniform when the blood bag is squeezed, so that the blood utilization rate is improved.

In another embodiment, the connecting mechanism 230 is a hinge, the first clamping plate 210 is hinged to the second clamping plate 220, the first clamping plate 210 and the second clamping plate 220 are relatively inclined, and the force applying surface is in a "V" shape when the blood bag is squeezed by the first clamping plate 210 and the second clamping plate 220, so that the blood separation efficiency is improved.

Please refer to fig. 2, which is a partial structural schematic diagram of a blood bag clamping device 1 according to an embodiment of the present application. The moving mechanism 400 comprises a tension dial 410, a pressing member 300, at least one first guide hole 420, at least one first guide rod 430, at least one support rod 440 and at least one elastic member 450, wherein a pull rope 411 is arranged on the tension dial 410; the pressing member 300 is connected to the pulling rope 411, and the first guide hole 420 is provided in the pressing member 300. One end of the first guide rod 430 is connected to the fixing support 100, and the other end thereof is inserted into the first guide hole 420. The supporting rod 440 is connected with the pressing member 300; the elastic member 450 has one end connected to the support rod 440 and the other end connected to the fixing support 100.

The pressing plate 320 is arranged on the pressing piece 300, the pressing plate 320 is used for being directly abutted to the second clamping plate 220, the contact area can be increased due to the arrangement of the pressing plate 320, the force is uniformly applied when the blood bag is extruded, and the blood utilization rate is improved.

The upright post 101 of the fixed support 100 is provided with a cavity 110 and a first communication hole 120 communicated with the cavity 110, the elastic member 450 is arranged in the cavity 110, and the support rod 440 passes through the first communication hole 120 and is connected with the elastic member 450; the first rod 140 is fixed in the cavity 110, and one end of the elastic member 450 is connected to the support rod 440, and the other end is connected to the first rod 140.

Therefore, in this embodiment, the pressing member 300 is driven to move closer to or away from the first clamping plate 210 by the pulling force of the pulling rope 411 and the elastic force of the elastic member 450. Wherein, the cooperation of the first guide bar 430 and the first guide hole 420 may be used to limit the moving direction of the pressing member 300.

The elastic member 450 may be an elastic member such as a tension spring, a compression spring, a rubber band, or an elastic cord. In this embodiment, the elastic member 450 is a tension spring, and when the elastic member 450 is not loaded, the initial state is a compressed state. When the blood bag is in a compressed state, the pressing plate 320 abuts against the second clamping plate 220, the gap between the first clamping plate 210 and the second clamping plate 220 is small, and the elastic member 450 is in a compressed state. When the blood bag is in a relaxed state, the pressing plate 320 and the second clamping plate 220 are spaced, the gap between the first clamping plate 210 and the second clamping plate 220 is large, and at this time, the elastic member 450 is in a stretched state.

In an operation process, the pulling force dial 410 is rotated to pull the pulling rope 411, the pulling force of the pulling rope 411 drives the pressing member 300 to move towards a direction away from the first clamping plate 210, at this time, the gap between the first clamping plate 210 and the second clamping plate 220 is large, the elastic member 450 is in a stretching state, and a blood bag can be placed between the first clamping plate 210 and the second clamping plate 220; when the tension dial 410 is released, the elastic member 450 returns to the original compressed state, and the elastic force of the elastic member 450 drives the pressing member 300 to move toward the upright 101, so that the gap between the first clamping plate 210 and the second clamping plate 220 is reduced until the preset distance is reached. The size of the preset distance can be controlled by the size of the elastic member 450, the size of the support rod 440, and the distance between the first support rod 140 and the support rod 440, so as to control whether the clamping structure 200 generates the clamping force only for the blood bag or generates the clamping force and the pressing force for the blood bag.

Please refer to fig. 3, which is a schematic structural diagram of a blood bag clamping device 1 according to an embodiment of the present application. The direction in which the column 101 is directed toward the base plate 102 is defined as downward, the direction in which the second clamping plate 220 is directed toward the first clamping plate 210 is defined as rearward, and the direction in which the length of the pressing member 300 is defined as left and right, thereby defining six directions of up, down, left, right, front, and rear.

The pressing member 300 is rod-shaped. The pulling rope 411 and the pressing plate 320 are respectively connected to the left end and the right end of the pressing member 300, and the first guide bar 430, the support bar 440 and the pulling force rotating disc 410 are all disposed on one side of the clamping structure 200.

Please refer to fig. 4, which is a front view of the blood bag holding device 1 according to an embodiment of the present application. The number of the first guide bars 430 is two, the two first guide bars 430 are arranged in parallel at intervals, and accordingly, the number of the first guide holes 420 is two. When the pressing member 300 moves, the first guide rod 430 moves relative to the first guide hole 420, and the two first guide rods 430 are provided, so that the pressing member 300 has two supporting points, and the movement is more stable.

The number of the support rods 440 is two, and the two support rods 440 are spaced apart from each other and arranged in parallel, and accordingly, the number of the elastic members 450 is two. The supporting rods 440 are provided in two, so that the movement of the pressing member 300 can be more stable. In this embodiment, the two support rods 440 are respectively disposed at two sides of the two first guide rods 430.

The pressing member 300 is provided with a coupling hole 310 for coupling the pulling rope 411, and the coupling hole 310 is provided between the two first guide holes 420. The connection hole 310 may be disposed at a position right in the middle between the two first guide holes 420, so that the pressing member 300 is more uniformly stressed when the pressing member 300 is pulled by the pull rope 411.

Please refer to fig. 5, which is a sectional view taken along a direction a-a of fig. 4 according to an embodiment of the present disclosure. The fixing bracket 100 has a second communication hole 130 communicating with the cavity 110, a second rod 150 is fixed in the cavity 110, and the first guide bar 430 is connected to the second rod 150 through the second communication hole 130. Wherein the second strut 150 is parallel to the first strut 140.

The supporting rod 440 and the pressing member 300 may be integrally formed, or may be fixed by a threaded connection, a welding, or the like. In the present embodiment, the first communication hole 120 and the second communication hole 130 are both cylindrical light holes. The support rod 440 and the first guide rod 430 are both cylindrical, and the axis of the support rod 440 and the axis of the first guide rod 430 are parallel to the base plate 102 and perpendicular to the pressing member 300. The diameter of the second communication hole 130 is greater than or equal to the outer diameter of the first guide bar 430. The first communication hole 120 has a diameter greater than or equal to the outer diameter of the support rod 440.

A first sleeve 431 is provided in each first guide hole 420. Each first guide rod 430 is inserted into the corresponding first sleeve 431.

The first partition plate 160 is disposed in the cavity 110 to divide the cavity 110 into two small spaces, i.e., a left small space and a right small space, and the elastic member 450, the second support bar 150 and the first support bar 140 are disposed in the right small space. The first partition plate 160 is connected with a second partition plate 170 through bolting, welding and the like, the second partition plate 170 is also arranged in the right small space, and the second support rod 150 and the first support rod 140 are fixed on the second partition plate 170 through bolting, welding and the like.

In an operation, the position of the clamping structure 200 can be adjusted by adjusting or replacing the connecting member 180, so as to adjust the predetermined distance between the first clamping plate 210 and the second clamping plate 220 by cooperating with the elastic member 450 and the supporting rod 440.

Fig. 6 is an exploded view of a part of the blood bag holding device 1 according to an embodiment of the present application. The tension force rotary table 410 comprises a fixed bracket 412, a rotating shaft 415, a rotating wheel 416 and a rocker arm 417, wherein the fixed bracket 412 is arranged on the bottom plate 102; the rotating shaft 415 is rotatably provided on the fixed bracket 412; the rotating wheel 416 is arranged on the rotating shaft 415, and the pull rope 411 is arranged on the rotating wheel 416; the swing arm 417 is provided on the rotating shaft 415.

The upper surface of the fixed bracket 412 is provided with a positioning groove 413, the rotating wheel 416 is arranged in the positioning groove 413, the left side surface and the right side surface of the fixed bracket 412 are respectively provided with a shaft hole 414 communicated with the positioning groove 413, and the rotating shaft 415 can be rotatably arranged in the two shaft holes 414 in a penetrating way.

Each shaft hole 414 is provided with a second sleeve 418, and a rotating shaft 415 is arranged in the two second sleeves 418 in a penetrating way. The end of the rotating shaft 415 is a square shaft head 4151, and the rotating shaft 415 is fixedly connected to the rocker arm 417 through the square shaft head 4151.

Wheel 416 is secured to shaft 415 by a second fastener 419. In this embodiment, the second fastening member 419 is a flat key.

A connecting piece 180 is arranged on the upright column 101, and the connecting piece 180 is a bent plate fixed by welding, bolt connection and other modes.

The pressing plate 320 is provided with two fixing plates 321, an end portion of the pressing member 300 is interposed between the two fixing plates 321, and the pressing member 300 is connected to the two fixing plates 321 by a first fastening member 322. In this embodiment, the first fastening member 322 is a bolt.

Since the pressing plate 320 and the pressing member 300 are connected by welding, the pressing member 300 may be deformed and bent after a long period of use, so that the pressing plate 320 cannot be completely attached to the second clamping plate 220 of the clamping structure 200, thereby affecting the clamping or pressing effect of the blood bag. Therefore, in the present embodiment, the pressing plate 320 and the pressing member 300 are connected by the first fastening member 322 and the two fixing plates 321, so that the service life of the pressing member 300 can be prolonged, and the adverse effect caused by the above-mentioned deformation problem can be avoided. In addition, when the pressing piece 300 is damaged, the pressing piece 300 can be replaced to maintain, so that the whole machine of the blood bag clamping device 1 is prevented from being replaced.

The tension turntable 410 of the present application is fixed on the fixing support 100 and does not slide, so that the present application can be flexibly moved.

In an operation process, an operator presses the swing arm 417 downwards with one hand to make the gap between the first clamping plate 210 and the second clamping plate 220 larger through the pull dial 410 and the pull rope 411, and the other hand places the centrifuged clamping structure 200 holding the blood bag between the pressing member 300 and the upright 101 and makes the first clamping plate 210 close to or abut against the upright 101; the operator's hand pressing the rocker arm 417 is released, and the operation of clamping or squeezing the blood bag can be completed by the action of the elastic member 450. Therefore, an operator can use the embodiment to complete the bag holding or clamping operation, and the operation is simple, convenient and quick.

Fig. 7 is a schematic structural diagram of a clamping structure 200 according to an embodiment of the present application. The connection mechanism 230 includes at least one second guide hole 231 and at least one second guide rod 232, the second guide hole 231 is provided on the second clamping plate 220; the second guide rod 232 is disposed on the first clamping plate 210, one end of the second guide rod 232 is connected to the first clamping plate 210, and the other end of the second guide rod 232 penetrates through the second guide hole 231. Wherein, the cooperation of the second guide rod 232 and the second guide hole 231 may not only connect the first clamping plate 210 and the second clamping plate 220, but also may serve to limit the moving direction of the second clamping plate 220.

In another embodiment, the second guide rod 232 is disposed on the second clamping plate 220, and the second guide hole 231 is disposed on the first clamping plate 210.

The second splint 220 has a hanging portion 222 at the bottom, and the hanging portion 222 has at least one fixing groove 223 for fixing the blood bag catheter. In this embodiment, the hanging portion 222 is located at the bottom of the second splint 220, which facilitates blood separation under the action of gravity.

Please refer to fig. 8, which is a front view of a clamping structure 200 according to an embodiment of the present application. The second guide rod 232 is provided in plurality, the plurality of second guide rods 232 are spaced apart from each other, and accordingly, the second guide hole 231 is provided in plurality. The axis of the second guide bar 232 is perpendicular to the second clamping plate 220. The second guide bar 232 is integrally formed with the first clamping plate 210, or is fixed by welding, screwing, or the like.

In this embodiment, the second guide rod 232 has two types, which are a shaped rod 2321 and a polish rod 2322.

The second guide bar 232 is provided with 8, including four profile bars 2321 and four polished bars 2322. The four special-shaped rods 2321 are respectively arranged at four corners of the second clamping plate 220, and the outer surface of the special-shaped rod 2321 is provided with a concave-convex structure similar to a thread, and the cross section of the concave-convex structure is a round. The four polish rods 2322 are arranged in a row and are arranged at the top of the second clamping plate 220, and the outer surface of the polish rod 2322 is not provided with a concave-convex structure similar to a thread and is in a smooth cylindrical rod shape.

Please refer to fig. 9, which is a cross-sectional view taken along the direction B-B of fig. 8 according to an embodiment of the present disclosure. First clamping plate 210 has a first surface 211 facing second clamping plate 220, second clamping plate 220 has a second surface 221 facing first clamping plate 210; four stoppers 240 are disposed on the first surface 211 and/or the second surface 221.

The limiting member 240 includes a limiting sleeve 241 and a backing ring 242 disposed at an end of the limiting sleeve 241. Four limiting members 240 are disposed in the four second guiding holes 231, respectively, and the four limiting members 240 are located at four corners of the second clamping plate 220 and are matched with the four special-shaped rods 2321. The outer surface of the limiting sleeve 241 is provided with a concave-convex structure similar to a thread, the inner surface of the limiting sleeve 241 can be smooth, and a thread structure matched with the outer surface of the special-shaped rod 2321 can also be arranged.

When the second clamping plate 220 moves relative to the first clamping plate 210, the shaped bar 2321 moves in the limiting sleeve 241, and when the gap between the second clamping plate 220 and the first clamping plate 210 decreases, the backing ring 242 of the limiting member 240 can limit the size of the minimum gap between the second clamping plate 220 and the first clamping plate 210. In one embodiment, the thickness of the backing ring 242, i.e., the minimum gap between the second clamping plate 220 and the first clamping plate 210, is 2.5 mm.

Please refer to fig. 10, which is a partial structural schematic diagram of a blood bag clamping device 1 according to an embodiment of the present application. The second clamping plate 220 has a third surface 224 facing the pressure plate 320, and the pressure plate 320 has a fourth surface 324 facing the second clamping plate 220.

The height of the pressing plate 320 is less than that of the second clamping plate 220, i.e., the length of the fourth surface 324 in the up-down direction is greater than that of the third surface 224 in the up-down direction. When the pressing plate 320 is pressed against the second clamping plate 220 by the pressing piece 300, the third surface 224 is abutted with the fourth surface 324; the pressing plate 320 covers the middle position of the second clamping plate 220, and the top end and the bottom end of the second clamping plate 220 are exposed, so that operations of pulling and inserting a catheter from a blood bag and the like can be facilitated.

The third surface 224 is convexly provided with a first limit strip 225, the first limit strip 225 is close to the top end of the second clamping plate 220, when the third surface 224 is attached to the fourth surface 324, the side surface of the first limit strip 225 can be abutted against the side surface of the pressing plate 320, and the first limit strip 225 can limit the up-and-down movement of the pressing plate 320.

In another embodiment, two first limiting bars 225 are provided, respectively near the top and bottom ends of the second clamping plate 220.

The fourth surface 324 is convexly provided with two second limiting strips 325, the two second limiting strips 325 are respectively arranged at the left end and the right end of the pressing plate 320, the length of the pressing plate 320 in the left-right direction is greater than the length of the second clamping plate 220 in the left-right direction, that is, the length of the fourth surface 324 in the left-right direction is greater than the length of the third surface 224 in the left-right direction. The first spacing strips 225 and the second spacing strips 325 are staggered, and in this embodiment, the length direction of the first spacing strips 225 is perpendicular to the length direction of the second spacing strips 325.

When the third surface 224 is attached to the fourth surface 324, the side surface of the second limiting strip 325 can abut against the side surface of the second clamping plate 220, the second clamping plate 220 is clamped between the two second limiting strips 325, and the two second limiting strips 325 can be used for limiting the relative left-right movement of the pressing plate 320 and the second clamping plate 220. The second limiting strip 325 can also abut against the connecting member 180 or the upright 101 when the pressing plate 320 is pressed against the second clamping plate 220, and thus can serve to limit the size of the minimum gap between the second clamping plate 220 and the first clamping plate 210.

The pressing plate 320 and the second clamping plate 220 can be made of transparent materials, so that the clamping and squeezing conditions of the blood bag can be observed conveniently.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A blood bag holding device, comprising:

the fixed support comprises an upright post and a bottom plate arranged at the bottom of the upright post;

the clamping structure comprises a connecting mechanism, a first clamping plate and a second clamping plate, wherein the first clamping plate and the second clamping plate are oppositely arranged;

the pressing piece is used for pressing the second clamping plate; and

the moving mechanism is arranged on the fixed support, is in transmission connection with the pressing piece and is used for driving the pressing piece to move towards the direction close to or far away from the upright post;

when the clamping structure is arranged between the pressing piece and the upright post, the first clamping plate is close to or attached to the upright post, and the pressing piece can drive the second clamping plate to move relatively towards the direction close to or far away from the first clamping plate.

2. The blood bag holding device of claim 1, wherein the moving mechanism comprises:

the tension turntable is arranged on the bottom plate, and a pull rope connected with the pressing piece is arranged on the tension turntable;

the at least one first guide hole is formed in the pressing piece;

one end of the first guide rod is connected with the upright post, and the other end of the first guide rod penetrates through the first guide hole;

at least one support rod connected with the pressing piece; and

and one end of the at least one elastic piece is connected with the supporting rod, and the other end of the at least one elastic piece is connected with the upright post.

3. The blood bag holding device according to claim 2, wherein a pressure plate is provided on the pressing member, the pressure plate being adapted to abut against the second clamping plate.

4. The blood bag holding device of claim 3, wherein said second clamping plate has a third surface facing said pressure plate, said pressure plate having a fourth surface facing said second clamping plate;

a first limiting strip is convexly arranged on the third surface, a second limiting strip is convexly arranged on the fourth surface, and the first limiting strip and the second limiting strip are staggered with each other;

when the third surface is attached to the fourth surface, the side surface of the first limiting strip can abut against the side surface of the pressing plate, and the side surface of the second limiting strip can abut against the side surface of the second clamping plate.

5. The blood bag holding device according to claim 2, wherein there are two first guide rods, the two first guide rods are disposed at a distance from each other, and correspondingly, there are two first guide holes;

the pressing piece is provided with a connecting hole for connecting the pull rope, and the connecting hole is formed between the two first guide holes.

6. The blood bag holding apparatus according to claim 2, wherein the holder has a cavity and a first communication hole and a second communication hole communicating with the cavity;

the elastic piece is arranged in the cavity, and the supporting rod penetrates through the first connecting hole to be connected with the elastic piece;

a first supporting rod is fixed in the cavity, one end of the elastic piece is connected with the supporting rod, and the other end of the elastic piece is connected with the first supporting rod;

and a second supporting rod is fixed in the cavity, and the first guide rod penetrates through the second communicating hole to be connected with the second supporting rod.

7. The blood bag holding device of claim 2, wherein the tension dial comprises:

the fixed bracket is arranged on the bottom plate;

the rotating shaft is rotatably arranged on the fixed bracket;

the rotating wheel is arranged on the rotating shaft, and the pull rope is arranged on the rotating wheel; and

and the rocker arm is arranged on the rotating shaft.

8. The blood bag holding device according to any one of claims 1 to 7, wherein the connecting mechanism comprises:

the at least one second guide hole is formed in the second clamping plate; and

at least one second guide bar is arranged on the first clamping plate, one end of the second guide bar is connected with the first clamping plate, and the other end of the second guide bar penetrates through the second guide hole.

9. The blood bag holding device of claim 1, wherein said first clamping plate has a first surface facing said second clamping plate, said second clamping plate has a second surface facing said first clamping plate;

at least one limiting piece is arranged on the first surface and/or the second surface and used for limiting the size of the minimum gap between the second clamping plate and the first clamping plate.

10. The blood bag holding device according to claim 1, wherein a hanging portion is provided on a bottom of the second clamping plate, and at least one fixing groove for fixing the blood bag tube is provided on the hanging portion.