An extracorporeal membrane oxygenation catheter fixation device

Abstract

The present invention discloses an extracorporeal membrane oxygenation catheter fixing device, belonging to the field of medical devices, which includes a forward wire arranging unit and a reverse wire arranging unit. The forward wire arranging unit and the reverse wire arranging unit are arranged in a linear array, and the forward wire arranging unit and the reverse wire arranging unit are arranged at intervals. The forward wire arranging unit is located below the reverse wire arranging unit. Binding straps are respectively provided at both ends of the forward wire arranging unit and the reverse wire arranging unit. A forward conveying belt is sleeved inside the forward wire arranging unit, and a reverse conveying belt is sleeved inside the reverse wire arranging unit. Guiding mechanisms are respectively provided on the forward conveying belt and the reverse conveying belt. A connecting rod is provided between the forward wire arranging unit and the reverse wire arranging unit. The present invention can effectively comb and fix the ECMO pipeline, reduce the impact on patients and medical staff, and ensure the life safety of patients.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and specifically refers to an extracorporeal membrane oxygenation catheter fixing device. Background Art

[0002] Extracorporeal membrane oxygenation, also known as ECMO, is a medical technology mainly used to provide continuous extracorporeal respiration and circulatory support for patients with severe cardiopulmonary failure to maintain the life of the patients. ECMO is mainly divided into veno-arterial ECMO (VA ECMO) and veno-venous ECMO (VV ECMO). VA ECMO usually intubates the femoral vein and femoral artery at the root of both thighs respectively to support cardiopulmonary function simultaneously, and is commonly used in cardiogenic shock or cardiopulmonary failure. VV ECMO usually intubates in the neck and only supports lung function, and is commonly used in severe respiratory failure. The pipeline of ECMO is usually relatively long, which is inconvenient during the later operations of medical staff and the daily life and minor activities of patients. If not effectively fixed, it will affect the safe use of ECMO and even endanger the life of patients. Summary of the Invention

[0003] In view of the above situation, to overcome the defects of the prior art, the present invention provides an extracorporeal membrane oxygenation catheter fixing device, which can effectively sort and fix the pipeline of ECMO, reduce the impact on patients and medical staff, and ensure the life safety of patients.

[0004] The technical solution adopted by the present invention is as follows: An extracorporeal membrane oxygenation catheter fixing device provided by the present invention includes a forward wire sorting unit and a reverse wire sorting unit. The forward wire sorting unit and the reverse wire sorting unit are arranged in a linear array, the forward wire sorting unit and the reverse wire sorting unit are arranged at intervals, the forward wire sorting unit is located below the reverse wire sorting unit, straps are respectively provided at both ends of the forward wire sorting unit and the reverse wire sorting unit, a forward conveyor belt is sleeved inside the forward wire sorting unit, a reverse conveyor belt is sleeved inside the reverse wire sorting unit, guiding mechanisms are respectively provided on the forward conveyor belt and the reverse conveyor belt, and a connecting rod is provided between the forward wire sorting unit and the reverse wire sorting unit.

[0005] Further, the forward wire sorting unit includes a front plate, a rear plate, a roller bin and an arc-shaped clamping groove. The front plate and the rear plate are symmetrically arranged. Roller bins are symmetrically provided on both sides of the front plate and the rear plate. The opposite sides of the roller bin and another roller bin are open. A flexible plate is provided between the roller bin and the front plate and the rear plate, and the flexible plate plays a connecting role. The arc-shaped clamping groove is provided on one side of the roller bin close to the front plate. A conveying groove is opened on the front plate and the flexible plate located between the front plate and the arc-shaped clamping groove. Card slots are opened on the top wall and the bottom wall of the conveying groove.

[0006] Further, the reverse cable management unit has the same structure as the forward cable management unit and is arranged in the opposite left - right direction.

[0007] Further, a first driving roller is rotatably arranged in the roller bin of the forward cable management unit. A single - row groove is formed on the circumferential side wall of the first driving roller. A second driving roller is rotatably arranged in the roller bin of the reverse cable management unit. A double - row groove is formed on the circumferential side wall of the second driving roller.

[0008] Further, the forward conveying belt includes a first belt. The two ends of the first belt are respectively sleeved outside the first driving roller. A first driving tooth is arranged on the outer wall of the first belt. A first positioning block is also arranged on the outer wall of the first belt. The first positioning block is slidably arranged in the conveying groove of the forward cable management unit and fits with the conveying groove. First clamping blocks are respectively arranged on the top wall and the bottom wall of the first positioning block. The first clamping blocks are slidably arranged in the clamping grooves. A first screw hole is formed on the side of the first positioning block away from the first belt.

[0009] Further, the reverse conveying belt includes a second belt. The two ends of the second belt are respectively sleeved outside the second driving roller. A second driving tooth is arranged on the outer wall of the second belt. A hollow layer is formed in the middle of the second belt. A connecting plate is arranged on the side wall of the first belt away from the front plate. A second positioning block is arranged on the side of the connecting plate close to the front plate. The second positioning block extends through the hollow layer towards the front plate. The second positioning block is slidably arranged in the conveying groove of the reverse cable management unit and fits with the conveying groove. Second clamping blocks are respectively arranged on the top wall and the bottom wall of the second positioning block. The second clamping blocks are slidably arranged in the clamping grooves. A second screw hole is formed on the side of the second positioning block away from the connecting plate.

[0010] Further, the guiding mechanism includes a positioning wheel and a screw rod. The screw rod is arranged on the side of the positioning wheel close to the front plate. The screw rod is in threaded engagement with the first screw hole and the second screw hole respectively. A wire - pulling groove is formed on the circumferential side wall of the positioning wheel. An operation hole is formed on the side of the positioning wheel away from the front plate.

[0011] Further, the arc of the arc - shaped clamping groove fits with the circumferential side wall of the positioning wheel. An extension rod is arranged on the side of the arc - shaped clamping groove away from the roller bin. A fixed shaft is arranged on the side of the end of the extension rod close to the roller bin. The fixed shaft fits with the operation hole. The extension rod is made of an elastic material.

[0012] Further, the bottom - most forward cable management unit is provided with a bottom plate. The bottom plate connects the front plate and the rear plate. The top - most reverse cable management unit is provided with a top plate at the top. The top plate connects the front plate and the rear plate. A cylindrical gear is rotatably arranged between the top plate and the bottom plate. The cylindrical gear is respectively meshed with the first driving tooth and the second driving tooth. A handle is arranged on the top of the top plate. The handle.

[0013] Further, a clamping clip is rotatably provided on the side wall of the roller bin of the topmost reverse wire management unit without an arc-shaped clamping groove, and the clamping clip is used to fix the starting end of the ECMO catheter winding.

[0014] Preferably, the inner walls of the clamping clip, the wire pulling groove, and the arc-shaped clamping groove are all made of a material with a large friction force such as rubber.

[0015] The beneficial effects achieved by the present invention with the above structure are as follows: An extracorporeal membrane oxygenation catheter fixing device provided by this solution can be fixed and used on the lateral side of the thigh or the lateral side of the trunk according to the intubation position of the patient. At the same time, the setting of the flexible plate enables the present invention to be bent to a certain extent, making it more conformable to the patient's body. Fix the present invention on the patient's body with a strap, clamp and fix the starting end of the catheter winding with a clamping clip, and then pass the catheter through the wire pulling grooves of each guiding mechanism in an S shape (during the threading process, the catheter should be located between the guiding mechanism and the arc-shaped clamping groove). After the threading is completed, rotate the handle to drive the cylindrical gear to rotate. The cylindrical gear drives the positive conveying belt and the reverse conveying belt, respectively driving the guiding mechanisms on the positive wire management unit and the reverse wire management unit to move in opposite directions until the positioning wheels are in contact with each arc-shaped clamping groove, firmly clamping the catheter, and winding the catheter in an S shape. During the contact process, the positioning wheel pushes open the fixed shaft. After the positioning wheel is in contact with the arc-shaped clamping groove, the positioning shaft is inserted into the operation hole to limit the guiding mechanism to prevent it from falling off. This method can effectively manage and fix the overly long ECMO catheter, making the area around the patient cleaner, reducing the risk of accidental contact between medical staff and patients. At the same time, the wearing method is more in line with the actual situation. The method of winding and collecting around the patient's trunk is closer to the intubation wound, and can move synchronously with the patient, making it more convenient for the patient to perform simple activities. Moreover, the detachable design of the guiding mechanism enables the present invention to flexibly adjust the collection length according to the length of the excess catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an extracorporeal membrane oxygenation catheter fixing device provided by the present invention;

[0017] Figure 2 is a schematic structural diagram of the positive wire management unit provided by the present invention;

[0018] Figure 3 is Figure 2 a partial enlarged view of part A in

[0019] Figure 4 is a schematic structural diagram of the positive conveying belt provided by the present invention;

[0020] Figure 5 is a schematic structural diagram of the guiding mechanism provided by the present invention;

[0021] Figure 6 Cross-sectional view of the forward cable management unit provided by the present invention;

[0022] Figure 7 Schematic structural diagram of the reverse cable management unit provided by the present invention;

[0023] Figure 8 is Figure 7 Partial enlarged view of part B in

[0024] Figure 9 Schematic structural diagram of the reverse conveyor belt provided by the present invention.

[0025] Wherein, 1, forward cable management unit; 2, reverse cable management unit; 3, binding tape; 4, cylindrical gear; 5, forward conveyor belt; 6, reverse conveyor belt; 7, guiding mechanism; 8, bottom plate; 9, top plate; 101, front plate; 102, rear plate; 103, roller bin; 104, flexible plate; 105, conveying groove; 106, card slot; 1071, driving roller 1; 1072, driving roller 2; 108, arc-shaped clamping groove; 109, extension rod; 110, fixed shaft; 111, connecting rod; 201, clamping clip; 401, handle; 501, belt 1; 502, driving tooth 1; 503, positioning block 1; 504, clamping block 1; 505, screw hole 1; 601, belt 2; 602, driving tooth 2; 603, hollow layer; 604, connecting plate; 605, positioning block 2; 606, clamping block 2; 607, screw hole 2; 701, positioning wheel; 702, wire pulling groove; 703, screw rod; 704, operation hole.

[0026] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0029] As Figures 1 - 9 shown, an extracorporeal membrane oxygenation catheter fixing device provided by the present invention includes a forward wire arranging unit 1 and a reverse wire arranging unit 2. The forward wire arranging unit 1 and the reverse wire arranging unit 2 are arranged in a linear array, and the forward wire arranging unit 1 and the reverse wire arranging unit 2 are arranged at intervals. The forward wire arranging unit 1 is located below the reverse wire arranging unit 2. Binding straps 3 are respectively provided at both ends of the forward wire arranging unit 1 and the reverse wire arranging unit 2. A forward conveying belt 5 is sleeved inside the forward wire arranging unit 1, and a reverse conveying belt 6 is sleeved inside the reverse wire arranging unit 2. Guiding mechanisms 7 are respectively provided on the forward conveying belt 5 and the reverse conveying belt 6. A connecting rod 111 is provided between the forward wire arranging unit 1 and the reverse wire arranging unit 2.

[0030] The forward wire arranging unit 1 includes a front plate 101, a rear plate 102, a roller bin 103 and an arc-shaped clamping groove 108. The front plate 101 and the rear plate 102 are symmetrically arranged. Roller bins 103 are symmetrically provided on both sides of the front plate 101 and the rear plate 102. The opposite sides of the roller bin 103 and another roller bin 103 are open. A flexible plate 104 is provided between the roller bin 103 and the front plate 101 and the rear plate 102. The flexible plate 104 plays a connecting role. The arc-shaped clamping groove 108 is provided on one side of one of the roller bins 103 close to the front plate 101. A conveying groove 105 is formed on the front plate 101 and the flexible plate 104 located between the front plate 101 and the arc-shaped clamping groove 108. Card slots 106 are formed on the top wall and the bottom wall of the conveying groove 105. The reverse wire arranging unit 2 has the same structure as the forward wire arranging unit 1 and is arranged in a left-right reversed manner.

[0031] A driving roller one 1071 is rotatably provided in the roller bin 103 of the forward wire arranging unit 1. A single-row groove is formed on the circumferential side wall of the driving roller one 1071. A driving roller two 1072 is rotatably provided in the roller bin 103 of the reverse wire arranging unit 2. A double-row groove is formed on the circumferential side wall of the driving roller two 1072.

[0032] The forward conveying belt 5 includes a first belt 501. The two ends of the first belt 501 are respectively sleeved on the outer sides of the first driving rollers 1071. The outer wall of the first belt 501 is provided with a first driving tooth 502. The outer wall of the first belt 501 is further provided with a first positioning block 503. The first positioning block 503 is slidably arranged in the conveying groove 105 of the forward wire arranging unit 1 and is in fit with the conveying groove 105. The top wall and the bottom wall of the first positioning block 503 are respectively provided with a first clamping block 504. The first clamping block 504 is slidably arranged in the clamping groove 106. A first screw hole 505 is formed in one side of the first positioning block 503 away from the first belt 501.

[0033] The reverse conveying belt 6 includes a second belt 601. The two ends of the second belt 601 are respectively sleeved on the outer sides of the second driving rollers 1072. The outer wall of the second belt 601 is provided with a second driving tooth 602. A hollow layer 603 is formed in the middle of the second belt 601. A connecting plate 604 is provided on the side wall of the first belt 501 away from the front plate 101. A second positioning block 605 is provided on the side of the connecting plate 604 close to the front plate 101. The second positioning block 605 extends through the hollow layer 603 towards the front plate 101. The second positioning block 605 is slidably arranged in the conveying groove 105 of the reverse wire arranging unit 2 and is in fit with the conveying groove 105. The top wall and the bottom wall of the second positioning block 605 are respectively provided with a second clamping block 606. The second clamping block 606 is slidably arranged in the clamping groove 106. A second screw hole 607 is formed in one side of the second positioning block 605 away from the connecting plate 604.

[0034] The guiding mechanism 7 includes a positioning wheel 701 and a screw rod 703. The screw rod 703 is arranged on the side of the positioning wheel 701 close to the front plate 101. The screw rod 703 is in threaded engagement with the first screw hole 505 and the second screw hole 607 respectively. A wire pulling groove 702 is formed in the circumferential side wall of the positioning wheel 701. An operation hole 704 is formed in the side of the positioning wheel 701 away from the front plate 101.

[0035] The arc of the arc-shaped clamping groove 108 is in fit with the circumferential side wall of the positioning wheel 701. An extension rod 109 is provided on the side of the arc-shaped clamping groove 108 away from the roller bin 103. A fixed shaft 110 is provided on the side of the end of the extension rod 109 close to the roller bin 103. The fixed shaft 110 is in fit with the operation hole 704. The extension rod 109 is made of an elastic material.

[0036] The bottommost forward wire arranging unit 1 is provided with a bottom plate 8. The bottom plate 8 connects the front plate 101 and the rear plate 102. The top of the topmost reverse wire arranging unit 2 is provided with a top plate 9. The top plate 9 connects the front plate 101 and the rear plate 102. A cylindrical gear 4 is rotatably arranged between the top plate 9 and the bottom plate 8. The cylindrical gear 4 is in mesh with the first driving tooth 502 and the second driving tooth 602 respectively. A handle 401 is provided on the top of the top plate 9, the handle 401.

[0037] A clamping clip 201 is rotatably arranged on the side wall of the roller bin 103 of the topmost reverse wire arranging unit 2 where the arc-shaped clamping groove 108 is not provided. The clamping clip 201 is used to fix the starting end of the ECMO catheter winding.

[0038] Preferably, the inner walls of the clamping clip 201, the wire-dragging groove 702, and the arc-shaped clamping groove 108 are all made of a material with a large friction force such as rubber.

[0039] During specific use, first, according to the intubation position of the patient, it is selected to be used on the side of the thigh or the side of the torso (a single invention of the present invention can only collect a single catheter. Usually, a patient using ECMO will insert two catheters. Therefore, it is necessary to wear them on the left leg, the right leg, or the left and right sides of the torso respectively). After being fixed by the strap 3, the setting of the soft board 104 enables the present invention to be bent to a certain extent and fit the patient's body more closely. After wearing, the starting end of the wire winding of the catheter is clamped and fixed by the clamping clip 201. Subsequently, the catheter passes through the wire-dragging grooves 702 of each guiding mechanism 7 in an S shape (during the wire threading process, the catheter should be located between the guiding mechanism 7 and the arc-shaped clamping groove 108). After the wire threading is completed, the handle 401 is rotated to drive the cylindrical gear 4 to rotate. After wearing, the forward conveying belt 5 and the reverse conveying belt 6 will bend towards the direction of the cylindrical gear 4, which can make the meshing of the first transmission tooth 502 and the second transmission tooth 602 with the cylindrical gear 4 more firm. Since the first positioning block 503 is arranged on the side of the first belt 501 away from the cylindrical gear 4, and the second positioning block 605 is arranged on the side of the second belt 601 close to the cylindrical gear 4, when the cylindrical gear 4 drives the forward conveying belt 5 and the reverse conveying belt 6, it will drive the guiding mechanisms 7 on the forward wire arranging unit 1 and the reverse wire arranging unit 2 to move in opposite directions respectively, stretch the catheter to both sides until the positioning wheels 701 are in contact with each arc-shaped clamping groove 108, firmly clamp the catheter, and perform S-shaped wire winding and collection on the catheter. During the contact process between the positioning wheel 701 and the arc-shaped clamping groove 108, the positioning wheel 701 pushes the fixed shaft 110 away. After the positioning wheel 701 is in contact with the arc-shaped clamping groove 108, the positioning shaft is inserted into the operation hole 704 to limit the guiding mechanism 7 to prevent it from falling off. At the same time, according to the long end of the redundant catheter in practice, the guiding mechanisms 7 are removed sequentially from bottom to top. The fewer the number of guiding mechanisms 7, the shorter the length that can be collected and wire arranged.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0041] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, creatively design structural manners and embodiments similar to this technical solution, they shall fall within the protection scope of the present invention.

Claims

1. An extracorporeal membrane oxygenation catheter fixation device, characterized in that: It includes a forward cable management unit (1) and a reverse cable management unit (2). The forward cable management unit (1) and the reverse cable management unit (2) are arranged in a linear array. The forward cable management unit (1) and the reverse cable management unit (2) are arranged at intervals. The forward cable management unit (1) is located below the reverse cable management unit (2). Binding straps (3) are respectively provided at both ends of the forward cable management unit (1) and the reverse cable management unit (2). A forward conveyor belt (5) is sleeved inside the forward cable management unit (1), and a reverse conveyor belt (6) is sleeved inside the reverse cable management unit (2). Guide mechanisms (7) are respectively provided on the forward conveyor belt (5) and the reverse conveyor belt (6). A connecting rod (111) is provided between the forward cable management unit (1) and the reverse cable management unit (2). The forward cable management unit (1) includes a front plate (101), a rear plate (102), a roller bin (103) and an arc-shaped clamping groove (108). The front plate (101) and the rear plate (102) are symmetrically arranged. Roller bins (103) are symmetrically provided on both sides of the front plate (101) and the rear plate (102). The opposite sides of the roller bin (103) and another roller bin (103) are open. A flexible plate (104) is provided between the roller bin (103) and the front plate (101) and the rear plate (102). The arc-shaped clamping groove (108) is provided on one side of the roller bin (103) close to the front plate (101). A conveying groove (105) is opened on the front plate (101) and the flexible plate (104) located between the front plate (101) and the arc-shaped clamping groove (108). Card slots (106) are opened on the top wall and the bottom wall of the conveying groove (105). The reverse cable management unit (2) has the same structure as the forward cable management unit (1) and is arranged in a left-right reversed manner. The guide mechanism (7) includes a positioning wheel (701) and a screw (703). The screw (703) is provided on the side of the positioning wheel (701) close to the front plate (101). The screw (703) is threadedly engaged with a first screw hole (505) and a second screw hole (607) respectively. A wire-dragging groove (702) is opened on the circumferential side wall of the positioning wheel (701). An operation hole (704) is opened on the side of the positioning wheel (701) away from the front plate (101). The arc of the arc-shaped clamping groove (108) fits the circumferential side wall of the positioning wheel (701). An extension rod (109) is provided on the side of the arc-shaped clamping groove (108) away from the roller bin (103). A fixed shaft (110) is provided on the side of the end of the extension rod (109) close to the roller bin (103). The fixed shaft (110) fits the operation hole (704). The extension rod (109) is made of an elastic material.

2. The extracorporeal membrane oxygenation catheter fixing device according to claim 1, wherein: A driving roller one (1071) is rotatably arranged in a roller bin (103) of the forward wire arranging unit (1). A single row of grooves is formed in the circumferential side wall of the driving roller one (1071). A driving roller two (1072) is rotatably arranged in a roller bin (103) of the reverse wire arranging unit (2). A double row of grooves is formed in the circumferential side wall of the driving roller two (1072).

3. The extracorporeal membrane oxygenation catheter fixing device according to claim 2, wherein: A clamping clip (201) is rotatably arranged on the side wall of the roller bin (103) of the topmost reverse wire arranging unit (2) where there is no arc-shaped clamping groove (108).

4. The extracorporeal membrane oxygenation catheter fixation device according to claim 3, wherein: The forward conveying belt (5) includes a belt one (501). The two ends of the belt one (501) are respectively sleeved on the outer sides of the driving roller one (1071). A driving tooth one (502) is arranged on the outer wall of the belt one (501). A positioning block one (503) is further arranged on the outer wall of the belt one (501). The positioning block one (503) is slidably arranged in a conveying groove (105) of the forward wire arranging unit (1) and is in fit with the conveying groove (105). Clamping blocks one (504) are respectively arranged on the top wall and the bottom wall of the positioning block one (503). The clamping blocks one (504) are slidably arranged in clamping grooves (106). A threaded hole one (505) is formed on one side of the positioning block one (503) away from the belt one (501).

5. An extracorporeal membrane oxygenation catheter fixation device according to claim 4, characterized in that: The reverse conveying belt (6) includes a belt two (601). The two ends of the belt two (601) are respectively sleeved on the outer sides of the driving roller two (1072). A driving tooth two (602) is arranged on the outer wall of the belt two (601). A hollow layer (603) is formed in the middle of the belt two (601). A connecting plate (604) is arranged on one side wall of the belt one (501) away from the front plate (101). A positioning block two (605) is arranged on one side of the connecting plate (604) close to the front plate (101). The positioning block two (605) extends towards the front plate (101) through the hollow layer (603). The positioning block two (605) is slidably arranged in a conveying groove (105) of the reverse wire arranging unit (2) and is in fit with the conveying groove (105). Clamping blocks two (606) are respectively arranged on the top wall and the bottom wall of the positioning block two (605). The clamping blocks two (606) are slidably arranged in clamping grooves (106). A threaded hole two (607) is formed on one side of the positioning block two (605) away from the connecting plate (604).

6. The extracorporeal membrane oxygenation catheter fixation device according to claim 5, characterized in that: A bottom plate (8) is arranged on the bottommost forward wire arranging unit (1). The bottom plate (8) connects the front plate (101) and the rear plate (102). A top plate (9) is arranged on the top of the topmost reverse wire arranging unit (2). The top plate (9) connects the front plate (101) and the rear plate (102). A cylindrical gear (4) is rotatably arranged between the top plate (9) and the bottom plate (8). The cylindrical gear (4) is respectively meshed with the driving tooth one (502) and the driving tooth two (602). A handle (401) is arranged on the top of the top plate (9). The handle (401).

7. The extracorporeal membrane oxygenation catheter fixing device according to claim 6, characterized in that: The inner walls of the clamping clip (201), the wire pulling groove (702), and the arc-shaped clamping groove (108) are all made of rubber material.

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