A fixing device suitable for ECMO treatment pipeline

Abstract

The present invention relates to the technical field of medical devices, and specifically to a fixing device suitable for ECMO treatment pipelines, including a pair of blood vessel binding groups attached to the thigh, a blood vessel fixing group fixed to the bedside and used to support the blood vessel binding group, and a return blood vessel fixing group arranged on the head and neck. By adjusting the position of the card frame on the positioning tube, the tube binding pad, the splint and the positioning tube form an effect of clamping the thigh; then the blood vessel fixing group is fixed to the bedside bed bar, and the tube binding pad is limited by the pad support rod; when the thigh needs to move, just unplug the pressure rod to lift the leg; by pressing the chin pad against the chin, wearing the headband on the top of the head, and then positioning the jugular vein return blood vessel on the side of the neck on the tube sleeve, the jugular vein return blood vessel and the neck clamp form an integral state, which will be synchronized with the deflection of the neck to avoid loosening of the connecting pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a fixing device suitable for ECMO treatment pipelines. Background Art

[0002] ECMO is the abbreviation of extracorporeal membrane oxygenation. The ECMO system is a complex extracorporeal circulation device that draws the patient's blood out of the body through a tube for oxygenation and carbon dioxide removal, and then returns it to the patient's body. The blood inlet end of the ECMO treatment tube usually draws venous blood from the femoral vein on the thigh, and the blood return end usually chooses the internal jugular vein on the side of the neck, so as to send the oxygenated blood back to the right atrium to form a circulating blood supply.

[0003] If the tubing is not fixed, it may slip or become disconnected due to the patient's movement, turning over, or improper operation by medical staff, which will directly affect the continuity of treatment and even endanger the patient's life. Unstable tubing may increase the risk of complications such as thrombosis, bleeding, and infection. For example, tubing shaking or displacement may cause blood to form vortices in the tubing, thereby increasing the chance of thrombosis. At the same time, tubing instability may also cause bleeding or infection at the intubation site.

[0004] However, the current clinical fixation of the ECMO treatment tube's inlet and return blood vessels is mostly done by sticking them on the thighs or shoulders with medical tape, which can easily cause skin pressure sores over time. In addition, because the tape sticks to the skin, the tube will still loosen after being pulled, causing pain to the patient at the least and complications at the worst. Therefore, a fixation device that can both fix the treatment tube and allow the patient to move normally is needed to reduce the patient's pain and the burden on medical staff. Summary of the invention

[0005] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a fixing device suitable for ECMO treatment circuits to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides a fixing device suitable for ECMO treatment pipelines, which is used to fix the femoral vein drainage blood vessels of the thigh and the jugular vein return blood vessels of the neck, including a pair of drainage blood vessel binding groups attached to the thigh, a drainage blood vessel fixing group fixed to the bedside and used to support the drainage blood vessel binding group, and a return blood vessel fixing group arranged on the head and neck;

[0007] The blood tube binding group includes a tube binding pad arranged on the upper side of the thigh, a plurality of tube clamps arranged at equal intervals on the top surface of the tube binding pad, a splint arranged under the thigh, and a pair of positioning tubes arranged on one side of the tube binding pad, one end of the splint is bent upward and a clamp frame is arranged on the top, and the clamp frame is movably connected with the positioning tube near the front end of the tube binding pad;

[0008] The blood vessel fixing group comprises a fixing seat arranged in the same direction as the tube binding pad, a supporting pad rod clamped with the fixing seat and movably connected with a pair of positioning tubes, a fixing clamp slidably connected with the side wall of the fixing seat and fixed to the bedside, and a pressing rod piece inserted at the rear end of the fixing seat and used to clamp the rear end of the supporting pad rod; the fixing seat is in the form of a rectangular parallelepiped and has a rod groove on the midline of the length of its top surface, the supporting pad rod is clamped with the rod groove and two sleeve rods are symmetrically and vertically arranged on the outer side of the supporting pad rod facing upward, and the sleeve rod is sleeved and matched with the positioning tube; the thigh is fixed to the fixing seat by clamping the thigh up and down with the tube binding pad and the splint, the femoral vein blood vessel is placed on the tube binding pad and clamped on a number of tube clamps for positioning; the pressing rod piece is pulled out, and the supporting pad rod leaves the fixing seat as the leg is raised, thus providing conditions for adjusting the posture of the thigh;

[0009] The blood vessel fixing group includes a neck clamp clamped with the neck, a pair of tube sleeves rotatably connected to the left and right sides of the neck clamp, a chin pad arranged at the top of the front end of the neck clamp, and a headband rotatably connected to the front of the chin pad; the neck clamp is in an inverted U shape and has tube openings at the front corners of its two vertical sides, and the tube openings correspond to the position of the entrance of the jugular vein; the jugular vein blood vessel on the side of the neck is positioned by placing the chin pad against the chin, wearing the headband on the top of the head, and then placing the jugular vein blood vessel sleeve on the tube sleeve.

[0010] As a further improvement of the present technical solution, the tube clamp is a hollow semicircular ring and a movable clamp is provided inside the ring. The central angle of the movable clamp is greater than 180 degrees and a shift block is provided on the outside of one end. The movable clamp is rotated to connect with the tube clamp to form a ring to clamp the femoral vein drainage tube on the tube binding pad.

[0011] As a further improvement of the present technical solution, a plurality of clamping blocks are provided at equal intervals on the outer side of the positioning tube near the front end of the pipe binding pad, and the plurality of clamping blocks are distributed axially along the positioning tube. The clamping frame is sleeved on the positioning tube and is engaged with two adjacent clamping blocks.

[0012] As a further improvement of the present technical solution, a threaded hole is provided at the center of the top end of the sleeve rod, a height adjustment rod is inserted into the top end of the positioning tube, and the height adjustment rod is threadedly connected to the threaded hole; an insertion hole is provided on the top side wall of the positioning tube, and a pin is inserted into the insertion hole and is inserted into the annular groove provided on the side wall of the height adjustment rod.

[0013] As a further improvement of the present technical solution, a sliding groove is provided at the bottom of one side of the fixed seat, and the longitudinal section of the sliding groove is a structure that is wide inside and narrow outside. The fixed card includes a pressure plate that is plugged into the sliding groove and is a right-angle plate, and a pressure frame that is clamped with the vertical section of the pressure plate, and the outer end of the horizontal section of the pressure plate is adapted to the sliding groove structure.

[0014] As a further improvement of the present technical solution, the pressure frame is C-shaped and has right-angle bend sections at the upper and lower ends, wherein a slot is provided on the top surface of the right-angle bend section located at the bottom, and the vertical section of the pressure plate is plugged into the slot, and a through hole is provided in the center of the top surface of the right-angle bend section located at the top, a screw is inserted into the through hole, and a pre-tightening plate is fixedly connected to the bottom end of the screw, and the pre-tightening plate is in contact with the top surface of the horizontal section of the pressure plate.

[0015] As a further improvement of the present technical solution, a groove is provided at the bottom of the rear end of the fixing seat, and limit strips are symmetrically provided at the top of the two inner sides of the rear end of the rod groove. The pressure rod is a U-shaped plate and one of its two parallel sections is plugged into the groove, and the other is plugged into the rod groove and placed on the bottom surface of a pair of limit strips.

[0016] As a further improvement of the technical solution, connecting shafts are symmetrically provided on the left and right sides of the neck clamp, and a connecting rod is provided on the back side of the pipe sleeve, and the rear end of the connecting rod is sleeved with the connecting shaft.

[0017] As a further improvement of the technical solution, a clamping rod is provided on the top of the chin pad, and the clamping rod is a bent rod that opens and tilts downward, and the two ends of the rod are transverse bending sections, and the side walls at the ends of the transverse bending sections are provided with connecting columns. The headband is made of silicone to form an arc sheet structure and has belt frames bonded to both side ends. The belt frame is a triangular frame structure and a rotating hole is provided on the side wall of the tip away from the headband, and the rotating hole is rotatably sleeved on the connecting column.

[0018] As a further improvement of the technical solution, a plurality of belt grooves are provided at equal intervals on both side surfaces of the headband, and the belt grooves are extended along the curved surface of the headband.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The fixing device for ECMO treatment circuit comprises a pair of blood vessel binding groups attached to the thigh, a blood vessel fixing group fixed to the bedside and used to support the blood vessel binding group, and a return blood vessel fixing group arranged on the head and neck; that is, the femoral vein blood vessel of the ECMO treatment tube is placed on the blood vessel binding group so as not to be in direct contact with the thigh, thereby avoiding the use of tape to tie the thigh, which causes the thigh to be unable to move and relax normally; by positioning the jugular vein return blood vessel of the ECMO treatment tube at the head and neck, it moves with the head and neck and will not pull the connection between the return blood vessel and the jugular vein, thereby reducing the occurrence of complications of patients and the burden on medical staff.

[0021] 2. The fixing device suitable for ECMO treatment pipeline adjusts the position of the card frame on the positioning tube so that the tube binding pad, the splint and the positioning tube form the effect of clamping the thigh; then the blood vessel fixing group is fixed on the bedside bed rail, and the tube binding pad is restricted by the pad support rod; when the thigh needs to be moved, the leg can be raised by simply unplugging the pressure rod, and since the femoral vein blood vessel is fixed on the tube binding pad, the connection between the blood vessel and the femoral vein will not be pulled.

[0022] 3. The fixing device suitable for ECMO treatment pipeline is positioned by placing the chin pad against the chin, wearing the headband on the top of the head, and then placing the jugular vein return blood vessel sleeve on the neck side on the tube sleeve. The jugular vein return blood vessel and the neck clamp form an integral state and will synchronize with the deflection movement of the neck to avoid loosening of the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art, under the guidance of the present invention, select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0024] Figure 1 It is a schematic diagram of the assembly structure of a pair of blood vessel binding groups and a blood vessel fixing group of the present invention.

[0025] Figure 2 For the present invention Figure 1 main view.

[0026] Figure 3 It is a schematic diagram of the assembly structure of the blood vessel binding group of the present invention.

[0027] Figure 4 This is a split diagram of the blood vessel binding group of the present invention.

[0028] Figure 5 This is a disassembled diagram of the blood vessel fixing group of the present invention.

[0029] Figure 6 This is a disassembled diagram of the fixing card of the present invention.

[0030] Figure 7 It is a schematic diagram of the assembly structure of the return blood vessel fixing group of the present invention.

[0031] Figure 8 For the present invention Figure 7 Side view of.

[0032] Fig. 9 For the present invention Figure 7 main view.

[0033] Fig.10 It is a disassembled diagram of the neck clamp assembly of the present invention.

[0034] Fig.11 It is a schematic diagram of the headband assembly structure of the present invention.

[0035] The meaning of each number in the figure is:

[0036] 100, blood vessel binding group; 110, tube binding pad; 111, tube clamp; 1111, movable clamp; 1112, dial block; 120, clamp plate; 121, clamp frame; 130, positioning tube; 131, clamp block; 132, socket; 140, height adjustment rod;

[0037] 200, blood vessel fixing group; 210, fixing seat; 211, rod groove; 212, slide groove; 213, groove; 214, limit strip; 220, support rod; 221, sleeve rod; 222, threaded hole; 230, fixing card; 231, pressing plate; 232, pressing frame; 2321, slot; 233, pre-tightening plate; 240, pressing rod member;

[0038] 300, blood vessel fixing group; 310, neck clamp; 311, tube mouth; 312, connecting shaft; 313, silicone pad; 320, tube sleeve; 321, connecting rod; 322, silicone sleeve; 330, chin pad; 331, clamp rod; 332, connecting column; 340, headband; 341, band frame; 342, band groove; 343, rotating hole. DETAILED DESCRIPTION

[0039] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, the technical personnel's conception is based on any possible variation of the present invention, which should be regarded as belonging to the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which means direct connection and indirect connection through an intermediate medium.

[0040] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0041] See also Figure 1-Figure 11As shown, the present invention provides a fixing device suitable for ECMO treatment pipelines. ECMO is the abbreviation of extracorporeal membrane oxygenation. The blood inlet end of the ECMO treatment tube usually draws venous blood from the femoral vein on the thigh, and the blood return end usually selects the internal jugular vein on the neck side, so as to send the oxygenated blood back to the right atrium to form a circulating blood supply; this fixing device is used to fix the femoral vein inlet blood vessel of the thigh and the jugular vein return blood vessel on the neck side, so as to avoid loosening of the joint of the treatment tube when the patient moves, thereby increasing the risk of complications such as bleeding infection; the fixing device of the present invention includes a pair of inlet blood vessel binding groups 100 attached to the thigh, an inlet blood vessel fixing group 200 fixed to the bedside and used to support the inlet blood vessel binding group 100, and a return blood vessel fixing group 300 arranged on the head and neck; by placing the femoral vein inlet blood vessel of the ECMO treatment tube on the inlet blood vessel binding group 100, it does not come into direct contact with the thigh, and avoids using tape to tie the thigh, which causes the thigh to be unable to move and relax normally; by positioning the jugular vein return blood vessel of the ECMO treatment tube on the head and neck, it moves with the patient and does not pull the connection between the return blood vessel and the jugular vein.

[0042] Specifically, the blood vessel binding group 100 includes a tube binding pad 110 arranged on the upper side of the thigh, a plurality of tube clamps 111 arranged at equal intervals on the top surface of the tube binding pad 110, a splint 120 arranged under the thigh, and a pair of positioning tubes 130 arranged on one side of the tube binding pad 110. One end of the splint 120 is bent upward and a clamp frame 121 is provided on the top. The clamp frame 121 is movably connected with the positioning tube 130 near the front end of the tube binding pad 110, so that the splint 120 can be adjusted on the positioning tube 130 to control the distance between the splint 120 and the tube binding pad 110, so as to clamp thighs of different thicknesses, so that the tube binding pad 110 can stably place the femoral vein blood vessel; wherein the tube binding pad 110, the pair of positioning tubes 130 and the plurality of tube clamps 111 are integrally injection-molded by PP material, which is durable and elastic, and the connection between the tube binding pad 110 and the pair of positioning tubes 130 is automatically deformed to adjust the adaptability of the clamped thigh;

[0043] The blood vessel fixing group 200 includes a fixing seat 210 arranged in the same direction as the tube binding pad 110, a pad support rod 220 that is clamped with the fixing seat 210 and movably connected to a pair of positioning tubes 130, a fixing clamp 230 that is slidably connected to the side wall of the fixing seat 210 and fixed to the bedside, and a pressing rod 240 that is plugged into the rear end of the fixing seat 210 and is used to clamp the rear end of the pad support rod 220; the fixing seat 210 is a rectangular parallelepiped and has a rod groove 211 on the midline of the length of its top surface, and the pad support rod 220 is clamped with the rod groove 211 Two sleeve rods 221 are symmetrically arranged vertically on the outer side of the support rod 220, and the sleeve rods 221 are sleeved and matched with the positioning tube 130; so that the tube binding pad 110 is restricted on the fixing seat 210, and the fixing seat 210 is restricted on the bedside bed rod by the fixing clamp 230, thereby limiting the femoral vein drainage blood supply to stabilize blood supply; when the thigh needs to be moved, only the pressure rod 240 needs to be pulled out to lift the leg, because the femoral vein drainage blood supply is fixed on the tube binding pad 110, that is, the connection between the drainage blood supply and the femoral vein will not be pulled;

[0044] The thigh is clamped up and down by the tube binding pad 110 and the splint 120 and fixed on the fixing seat 210, and the femoral vein drainage tube is placed on the tube binding pad 110 and clamped on a plurality of tube clamps 111 for positioning; the pressure rod 240 is pulled out, and the support pad rod 220 leaves the fixing seat as the leg is raised, providing conditions for adjusting the posture of the thigh.

[0045] Furthermore, the tube clamp 111 is a hollow semicircular ring and a movable clamp 1111 is sleeved inside the semicircular ring. The central angle of the movable clamp 1111 is greater than 180 degrees and a shift block 1112 is provided on the outer side of one end. The movable clamp 1111 is rotated to connect with the tube clamp 111 to form a ring and clamp the femoral vein drainage tube on the tube binding pad 110, so that the femoral vein drainage tube is compressed by the tube binding pad 110 to avoid being involved in the femoral vein connection port.

[0046] Furthermore, a plurality of clamping blocks 131 are provided at equal intervals on the outer side of the positioning tube 130 near the front end of the pipe binding pad 110, and the plurality of clamping blocks 131 are distributed axially along the positioning tube 130. The clamping frame 121 is sleeved on the positioning tube 130 and engaged with two adjacent clamping blocks 131, so that the clamping plate 120 can be connected in a limited position when the height of the positioning tube 130 is adjusted axially.

[0047] In addition, in order to adjust the height of the pipe-binding pad 110 from the bed, a threaded hole 222 is opened at the center of the top end of the sleeve rod 221, and the top end of the positioning tube 130 is plugged with the height-adjusting rod 140, and the height-adjusting rod 140 is threadedly connected to the threaded hole 222; a socket 132 is opened on the top side wall of the positioning tube 130, and a pin is inserted into the socket 132 and plugged into the annular groove opened on the side wall of the height-adjusting rod 140; the height-adjusting rod 140 is restricted by the pin to only rotate and cannot be removed from the positioning tube 130, so that the height-adjusting rod 140 and the threaded hole 222 are rotated clockwise or counterclockwise to generate spiral linear motion, which can drive the positioning tube 130 and the pipe-binding pad 110 to rise or fall relative to the sleeve rod 221, and it is convenient and stable to adjust the height of the pipe-binding pad 110.

[0048] Furthermore, a slide groove 212 is provided at the bottom of one side of the fixing seat 210, and the longitudinal section of the slide groove 212 is a structure that is wide inside and narrow outside, thereby forming a limiting structure; the fixing card 230 includes a pressing plate 231 that is plugged into the slide groove 212 and is a right-angle plate, and a pressing frame 232 that is clamped with the vertical section of the pressing plate 231, and the outer end of the horizontal section of the pressing plate 231 is adapted to the structure of the slide groove 212 to prevent the pressing plate 231 from being pulled out horizontally, and the pressing plate 231 can slide longitudinally along the slide groove 212, thereby adjusting the clamping position with the bedside bed rail;

[0049] The pressing frame 232 is C-shaped and has right-angled bend sections at the upper and lower ends, wherein a slot 2321 is provided on the top surface of the right-angled bend section at the bottom, and the vertical section of the pressing plate 231 is plugged into the slot 2321, and a through hole is provided in the center of the top surface of the right-angled bend section at the top, in which a screw is inserted, and a pre-tightening plate 233 is fixedly connected to the bottom end of the screw, and the pre-tightening plate 233 is in contact with the top surface of the horizontal section of the pressing plate 231; the upper and lower right-angled bend sections of the pressing frame 232 are then used to clamp the upper and lower surfaces of the bed rod, and the screw is tightened to squeeze the pre-tightening plate 233 and press the top surface of the pressing plate 231, thereby forming a fixed bed rod state, so that the fixing seat 210 is stably placed on the bed, thereby limiting the position of the pipe binding pad 110.

[0050] Furthermore, a groove 213 is provided at the bottom of the rear end of the fixing seat 210, and limiting strips 214 are symmetrically provided at the top of the two inner sides of the rear end of the rod groove 211. The pressure rod 240 is a U-shaped plate, and one of its two parallel sections is plugged into the groove 213, and the other is plugged into the rod groove 211 and placed on the bottom surface of a pair of limiting strips 214, thereby pressing the end of the support rod 220 away from the root of the thigh to prevent the thigh from being lifted.

[0051] Specifically, the blood vessel fixing group 300 includes a neck clamp 310 clamped with the neck, a pair of tube sleeves 320 rotatably connected to the left and right sides of the neck clamp 310, a chin pad 330 arranged at the top of the front end of the neck clamp 310, and a headband 340 rotatably connected to the front of the chin pad 330; a silicone pad 313 is bonded to the inner side of the neck clamp 310, so that it contacts the neck comfortably without leaving pressure marks; the neck clamp 310 is in an inverted U shape and a tube opening 311 is opened at the front corners of its two vertical sides, and the tube opening 311 corresponds to the position of the entrance of the jugular vein to facilitate the extraction of the jugular vein blood vessel; by pressing the chin pad 330 against the chin, wearing the headband 340 on the top of the head, and then positioning the jugular vein blood vessel on the side of the neck on the tube sleeve 320, the jugular vein blood vessel and the neck clamp 310 form an integral state, which will be synchronized with the deflection movement of the neck to avoid loosening of the connecting pipe.

[0052] Furthermore, connecting shafts 312 are symmetrically provided on the left and right sides of the neck clamp 310, and a connecting rod 321 is provided on the back of the tube sleeve 320, and the rear end of the connecting rod 321 is sleeved with the connecting shaft 312; a silicone sleeve 322 is sleeved on the outside of the connecting shaft 312, which is used to elastically squeeze the rotating end of the connecting rod 321 to ensure that the connecting rod 321 can be stably positioned after rotation and adjustment.

[0053] Furthermore, a clamping rod 331 is provided on the top of the chin pad 330. The clamping rod 331 is a bent rod with an opening tilted downward and the two ends of the rod are transversely bent sections. The side walls of the ends of the transversely bent sections are provided with connecting posts 332. The headband 340 is made of a circular arc sheet structure made of silicone and a belt frame 341 is bonded to both ends of the headband 340. The belt frame 341 is a triangular frame structure and a rotating hole 343 is provided on the side wall of the tip away from the headband 340. The rotating hole 343 is sleeved with the connecting post 332. The clamp rod 331 extends to the ear along the bottom of the face, and the headband 340 is worn on the top of the head by avoiding the ear through the belt frame 341, and the chin pad 330 is pressed against the chin to form a stable wearing effect, thereby serving as a stable structure for fixing the jugular vein return blood vessels; a plurality of belt grooves 342 are evenly spaced on both sides of the headband 340, and the belt grooves 342 are extended along the arc surface of the headband 340, so that the headband 340 is pushed open by the head to form a rebound compression state;

[0054] The neck clip 310, the chin pad 330 and the clamp rod 331 are integrally injection-molded using PP material, which is durable and elastic. The upper and lower connections of the chin pad 330 are automatically deformed to adjust the angles of the chin and neck, making it suitable for wear.

[0055] When the fixing device for ECMO treatment pipeline of the present invention is used, the front end of the tube binding pad 110 is first placed on the lead-out end of the femoral vein drainage tube, and then the femoral vein drainage tube is clamped to a plurality of tube clamps 111, and the movable clamps 1111 are rotated to form a circular binding state, and then the splint 120 is placed on the front end of the tube binding pad 110 and is located under the thigh to press, and by adjusting the position of the clamp frame 121 on the positioning tube 130, the tube binding pad 110, the splint 120 and the positioning tube 130 form an effect of clamping the thigh; then the drainage tube fixing group 200 is fixed to the bedside bed rod, and the tube binding pad 110 is restricted by the pad support rod 220; when the thigh needs to be moved, only the pressure rod 240 needs to be pulled out to lift the leg, because the femoral vein drainage tube is fixed on the tube binding pad 110, that is, the connection between the drainage tube and the femoral vein will not be pulled;

[0056] By placing the chin pad 330 against the chin, wearing the headband 340 on the top of the head, and then positioning the jugular vein on the side of the neck on the tube sleeve 320, the jugular vein and the neck clamp 310 form a whole state, and will synchronize with the deflection movement of the neck to avoid loosening of the tube connection.

[0057] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing device suitable for ECMO treatment circuit, used for fixing the femoral vein drainage blood vessel of the thigh and the jugular vein return blood vessel of the neck, characterized in that: It comprises a pair of blood vessel binding groups (100) attached to the thigh and a blood vessel fixing group (200) fixed to the bedside and used to support the blood vessel binding group (100); The blood vessel binding group (100) comprises a tube binding pad (110) arranged on the upper side of the thigh, a plurality of tube clamps (111) arranged at equal intervals on the top surface of the tube binding pad (110), a splint (120) arranged under the thigh, and a pair of positioning tubes (130) arranged on one side of the tube binding pad (110), wherein one end of the splint (120) is bent upward and a clamp frame (121) is provided at the top end, and the clamp frame (121) is movably sleeved with the positioning tube (130) near the front end of the tube binding pad (110); The blood vessel fixing group (200) comprises a fixing seat (210) arranged in the same direction as the tube binding pad (110), a pad support rod (220) clamped with the fixing seat (210) and movably connected to a pair of positioning tubes (130), a fixing clamp (230) slidably connected to the side wall of the fixing seat (210) and fixed to the bedside, and a pressing rod member (240) plugged into the rear end of the fixing seat (210) and used to clamp the rear end of the pad support rod (220); the fixing seat (210) is in the form of a rectangular parallelepiped and a rod groove (211) is provided on the midline of the length of its top surface, the pad support rod (220) is clamped with the rod groove (211), and two sleeve rods (221) are symmetrically and vertically provided on the outer side of the pad support rod (220) facing upward, and the sleeve rod (221) is sleeved and matched with the positioning tube (130); A threaded hole (222) is provided at the center of the top end of the sleeve rod (221); a height adjustment rod (140) is plugged into the top end of the positioning tube (130), and the height adjustment rod (140) is threadedly connected to the threaded hole (222); a plug hole (132) is provided on the top side wall of the positioning tube (130), and a pin is plugged into the annular groove provided on the side wall of the height adjustment rod (140); A groove (213) is provided at the bottom of the rear end of the fixing seat (210), and limit strips (214) are symmetrically provided at the top of the two inner sides of the rear end of the rod groove (211); the pressure rod (240) is a U-shaped plate, and one of its two parallel sections is plugged into the groove (213), and the other is plugged into the rod groove (211) and placed on the bottom surface of a pair of limit strips (214); The thigh is clamped up and down by the tube-binding pad (110) and the splint (120) and fixed on the fixing seat (210), and the femoral vein drainage blood vessel is placed on the tube-binding pad (110) and clamped on a plurality of tube clamps (111) for positioning; the pressure rod (240) is pulled out, and the pad support rod (220) leaves the fixing seat as the leg is lifted, thereby providing conditions for adjusting the posture of the thigh.

2. The fixing device for ECMO treatment circuit according to claim 1, characterized in that: The tube clamp (111) is in the form of a hollow semicircular ring and is sleeved with a movable clamp (1111) inside. The central angle of the movable clamp (1111) is greater than 180 degrees and a shift block (1112) is provided on the outside of one end of the movable clamp. The movable clamp (1111) is rotated to connect with the tube clamp (111) to form a circular ring, thereby clamping the femoral vein drainage tube on the tube binding pad (110).

3. The fixing device for ECMO treatment circuit according to claim 2, characterized in that: A plurality of clamping blocks (131) are provided at equal intervals on the outer side of the positioning tube (130) near the front end of the tube binding pad (110); the plurality of clamping blocks (131) are distributed axially along the positioning tube (130); and the clamping frame (121) is sleeved with the positioning tube (130) and is clamped and matched with two adjacent clamping blocks (131).

4. The fixing device for ECMO treatment circuit according to claim 3, characterized in that: A slide groove (212) is provided at the bottom of one side of the fixing seat (210), and the longitudinal section of the slide groove (212) is a structure that is wide inside and narrow outside. The fixing card (230) comprises a pressing plate (231) that is plugged into the slide groove (212) and is a right-angle plate, and a pressing frame (232) that is clamped to the vertical section of the pressing plate (231), and the outer end of the horizontal section of the pressing plate (231) is adapted to the slide groove (212) structure.

5. The fixing device for ECMO treatment circuit according to claim 4, characterized in that: The pressing frame (232) is C-shaped and has right-angled bend sections at the upper and lower ends, wherein a slot (2321) is provided on the top surface of the right-angled bend section at the bottom, and the vertical section of the pressing plate (231) is plugged into the slot (2321), and a through hole is provided at the center of the top surface of the right-angled bend section at the top, a screw is plugged into the through hole, and a pre-tightening plate (233) is fixedly connected to the bottom end of the screw, and the pre-tightening plate (233) is in contact with the top surface of the horizontal section of the pressing plate (231).

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