ECMO catheter storage fixing clamp
By designing the ECMO catheter storage fixing clip, the pipeline disorder caused by the reserved section of the ECMO catheter is solved, and the orderly storage and stability management of the catheter is realized, which is suitable for the fixing and adjustment of the catheter during ECMO treatment.
Patent Information
- Application Number
- CN202420921563.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The reserved section of the ECMO catheter during use can easily lead to disordered pipelines between the hospital bed and the equipment, and there is a risk of accidental contact, affecting the stability of blood flow in the catheter.
An ECMO catheter storage fixing clip is designed, including a fixing housing unit and a storage unit, which is fixed by a cover plate engaging unit. The storage unit organizes and stores the catheter, and the adjustment component facilitates the adjustment of the catheter length when the patient is stretched.
The orderly storage and management of the catheter is achieved, the pipeline disorder is avoided, the stability of blood flow in the catheter is ensured, and the patient's movement is facilitated.
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Figure CN223275763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an ECMO catheter storage and fixing clamp. Background Art
[0002] Extracorporeal membrane oxygenation is mainly used to provide continuous extracorporeal respiration and circulation to patients with severe cardiopulmonary failure in order to maintain the patient's life. When an ECMO catheter is inserted into a patient undergoing ECMO treatment, the ECMO catheter is clinically sutured to the patient's body in sections for fixation. When the ECMO catheter connects the patient and the machine to form a loop, sufficient length is usually reserved to prevent the catheter from shifting or loosening due to turning over, transportation, patient irritability, etc., which affects the stability of blood flow in the ECMO catheter. However, longer catheters also bring inconvenience to treatment, resulting in confusing and complicated pipelines between the bed and the equipment. If you are not careful, it is easy to cause accidental collisions and the like. Therefore, there is a need for a device that can store and fix the catheter and facilitate adjustment when the patient stretches.
[0003] In view of the above background, an ECMO catheter storage and fixing clamp is proposed to solve the above problems. Utility Model Content
[0004] Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.
[0005] In view of the above-mentioned existing technical problems, the present utility model is proposed.
[0006] The utility model aims to provide an ECMO catheter storage and fixing clamp, which aims to solve the problem of storage and fixation of the reserved section of the ECMO catheter.
[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an ECMO catheter storage and fixing clamp, which includes a fixed housing unit, including a storage housing, wherein the upper end of the storage housing is connected to a storage cover;
[0008] The cover plate engaging unit includes a clamping block, which is connected to the storage cover plate and cooperates with the storage shell. A clamping block spring is further provided on the rear side of the clamping block, one end of the clamping block spring is fixedly connected to the storage cover plate, and the other end is connected to the clamping block;
[0009] The storage unit includes a storage disc, which is arranged in the storage shell. An adjustment component is also provided on the upper side of the storage disc, and the adjustment component is connected and matched with the storage cover.
[0010] As a preferred solution of the ECMO catheter storage and fixing clamp of the utility model, the storage shell is a cylindrical structure with an opening on the upper side, and a buckle is provided on the lower side thereof. It is a U-shaped structure, and two are provided at intervals on the left and right sides, and a plurality of protrusions are provided at intervals on the inner side of the buckle.
[0011] As a preferred solution of the ECMO catheter storage and fixing clamp of the present invention, the storage shell is symmetrically provided with catheter through holes on both sides, a rotation groove is provided at the center position, and the storage shell is provided with a connecting groove on the inner side of the side wall of the catheter through hole, and the end of the connecting groove is a locking groove.
[0012] As a preferred solution of the ECMO catheter storage and fixing clamp of the utility model, wherein: a positioning ring is provided on the lower side of the storage cover, and its outer diameter is consistent with the inner diameter of the storage shell, and openings are provided on both sides of the positioning ring. The storage cover is provided with a card block connecting hole at the opening position, and the middle part of the card block connecting hole is a spring connecting groove. A knob connecting hole is also provided in the middle of the storage cover, and a knob limiting tooth ring is provided on the side wall of the knob connecting hole.
[0013] As a preferred solution of the ECMO catheter storage and fixing clamp of the utility model, the clamping block is arranged in the clamping block connecting hole and cooperates with the connecting groove, the upper end of the clamping block is an opening and closing plate, the lower end is a clamping block, the front end of the clamping block is a sloped block, which cooperates with the clamping groove, and the clamping block spring is arranged in the spring connecting groove.
[0014] As a preferred solution of the ECMO catheter storage and fixing clamp of the present invention, wherein: a rotating connecting column is provided on the lower side of the storage disc, which cooperates with the connecting groove; an adjustment cylinder is symmetrically provided on the upper side of the storage disc; a storage rotating groove is provided at the center position of the upper end of the adjustment cylinder; an adjustment rotating groove is also provided at the position of the storage rotating groove biased toward the center position of the storage disc; the depth of the storage rotating groove is half of the depth of the adjustment rotating groove; a storage baffle is also provided along the side of the storage disc, the projection of which is a circular arc segment, one end of which is connected to the adjustment cylinder, and the other end forms a catheter channel between the adjustment cylinder.
[0015] As a preferred solution of the ECMO catheter storage and fixing clamp of the present invention, the adjustment component includes a rotating adjustment piece, which cooperates with the knob connecting hole, and the adjustment component also includes an adjustment spring sheet, which is arranged on the side wall of the knob connecting hole. An adjustment column and an adjustment coil spring are provided on the lower side of the rotating adjustment piece, and one end of the adjustment coil spring is fixedly connected to the rotating adjustment piece, and the other end is connected to the adjustment column.
[0016] As a preferred solution of the ECMO catheter storage and fixing clamp of the present invention, the lower side of the rotating adjustment member is a rotating disk, a coil spring connecting column is provided at the center position of the lower side of the rotating disk, and storage connecting columns are provided at both ends of the lower side, an adjustment slot is provided between the storage connecting column and the coil spring connecting column, and the adjustment column is provided in the adjustment slot.
[0017] As a preferred solution of the ECMO catheter storage and fixing clamp of the present invention, the side of the rotating adjustment member is provided with an annular protrusion, which cooperates with the adjusting spring sheet, and the side of the rotating adjustment member is also provided with a limiting tooth, which cooperates with the knob limiting tooth ring.
[0018] As a preferred solution of the ECMO catheter storage and fixing clamp of the utility model, the adjustment spring sheet includes a first adjustment section and a second adjustment section, which cooperate with the annular protrusion.
[0019] The beneficial effects of the ECMO catheter storage and fixing clamp of the present invention are: the device can be fixed in a location including a bedside through the cover plate snap-fit unit, which is convenient for placement; the storage unit can store and organize the catheter, and can be stretched at will when the patient needs it, and automatically retracted into the device after use to ensure the orderliness of the catheter. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:
[0021] Figure 1 This is an overall schematic diagram of the ECMO catheter storage and fixing clamp in the present invention.
[0022] Figure 2 This is an exploded schematic diagram of the ECMO catheter storage and fixing clamp in the present invention.
[0023] Figure 3 It is a schematic diagram of the storage shell in the present invention.
[0024] Figure 4 It is a cross-sectional view of the storage cover in the present invention.
[0025] Figure 5 It is a schematic diagram of the cover plate engaging unit in the present invention.
[0026] Figure 6 It is a schematic diagram of the storage disc in the present invention.
[0027] Figure 7 It is a cross-sectional view of the adjustment component in the present invention.
[0028] Figure 8 This is a schematic diagram of the adjustment spring sheet in the present invention. DETAILED DESCRIPTION
[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0031] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it designate a separate or selective embodiment that is mutually exclusive with other embodiments.
[0032] Example 1
[0033] Reference Figures 1 to 5 , which is the first embodiment of the present utility model, provides an ECMO catheter storage fixing clamp, including a fixed housing unit 100, including a storage housing 101, and a storage cover plate 102 connected to the upper end of the storage housing 101;
[0034] The cover plate locking unit 200 includes a clamping block 201, which is connected to the storage cover plate 102 and cooperates with the storage shell 101. A clamping block spring 202 is also provided on the rear side of the clamping block 201. One end of the clamping block spring 202 is fixedly connected to the storage cover plate 102, and the other end is connected to the clamping block 201.
[0035] Furthermore, the storage shell 101 is a cylindrical structure with an opening on the upper side, and a buckle 101a is provided on the lower side. It is a U-shaped opening structure with a circular opening shape, and two are provided at intervals on the left and right. Multiple protrusions 101a-1 are provided at intervals on the inside of the buckle 101a to increase the friction between the fixed object and ensure the stability of the clamping.
[0036] Furthermore, the storage shell 101 is a cylindrical structure with an opening on the upper side, and has conduit through holes 101b symmetrically opened on both sides, which are 30-degree arcs in size. A rotation groove 101c is provided at the center of the storage shell 101, and the storage shell 101 is provided with a connecting groove 101d on the inner side of the side wall of the conduit through hole 101b. The end of the connecting groove 101d is a snap-fit groove 101d-1, and the depth of the snap-fit groove 101d-1 is twice the depth of the connecting groove 101d.
[0037] Furthermore, the outer diameter of the storage cover 102 is consistent with the outer diameter of the storage shell 101, and a positioning ring 102a is provided on its lower side, and its outer diameter is consistent with the inner diameter of the storage shell 101. Openings are provided on both sides of the positioning ring 102a, and the storage cover 102 is provided with a block connecting hole 102b at the opening position, which passes through the storage cover 102, and the middle part of the block connecting hole 102b is a spring connecting groove 102b-1. A knob connecting hole 102c is also provided in the middle of the storage cover 102, and a knob limiting tooth ring 102c-1 is provided on the side wall of the knob connecting hole 102c, and its distance from the lower end of the knob connecting hole 102c is consistent with its thickness.
[0038] Furthermore, the card block 201 is arranged in the card block connecting hole 102b and cooperates with the connecting groove 101d. Its upper end is an opening and closing plate 201a and the lower end is a locking block 201b. The width of the opening and closing plate 201a is wider than the card block connecting hole 102b. The extended length of the locking block 201b is consistent with the depth of the locking groove 101d-1. Its front end is a slope block 201b-1, which cooperates with the locking groove 101d-1. The rear end of the card block spring 202 is fixedly arranged in the spring connecting groove 102b-1, and the front end is connected to the card block 201 and always maintains a compressed state.
[0039] When in use, the buckle 101a is engaged with the patient's bedside fence or other positions to fix the storage shell 101, and then the catheter is placed in the storage shell 101 through the catheter through hole 101b, and then the storage cover 102 is placed on the upper end of the storage shell 101, and the card block 201 is placed in the catheter through hole 101b, and then the storage cover 102 is rotated to make the card block 201 enter the connecting groove 101d, and the inclined block 201b-1 drives the card block 201 to retreat under the pressure of the inner wall of the connecting groove 101d, and continues to rotate the storage cover 102 until the locking block 201b enters the locking groove 101d-1. Under the action of the card block spring 202, the card block 201 completes the connection between the storage cover 102 and the storage shell 101.
[0040] Example 2
[0041] Reference Figures 1 to 8, which is the second embodiment of the present utility model. Based on the previous embodiment, this embodiment provides an ECMO catheter storage and fixing clamp, and also includes a storage unit 300, including a storage disc 301, the storage disc 301 is arranged in the storage shell 101, and an adjustment component 302 is also provided on the upper side of the storage disc 301, and the adjustment component 302 is connected and cooperated with the storage cover 102.
[0042] Furthermore, a rotating connecting column 301a is provided at the center of the lower side of the storage disc 301, which rotates with the connecting groove 101d. An adjusting cylinder 301b is symmetrically provided on the upper side of the storage disc 301. A storage rotating groove 301b-1 is provided at the center position of the upper end of the adjusting cylinder 301b. An adjusting rotating groove 301b-2 is also provided at the storage rotating groove 301b-1 biased towards the center position of the storage disc 301. The depth of the storage rotating groove 301b-1 is half the depth of the adjusting rotating groove 301b-2. A storage baffle 301c is also provided along the side of the storage disc 301, and its height is consistent with the height of the adjusting cylinder 301b. The storage baffle 301c is projected as an arc segment, one end of which is connected to the adjusting cylinder 301b, and the other end forms a conduit channel between the adjusting cylinder 301b.
[0043] Furthermore, the adjustment component 302 includes a rotating adjustment member 302a, whose diameter is consistent with the minimum inner diameter of the knob limit gear ring 102c-1 and is arranged in the knob connecting hole 102c. The adjustment component 302 also includes an adjustment spring sheet 302b, which is arranged one on each side of the knob connecting hole 102c, one end of which is fixedly arranged on the side wall of the knob connecting hole 102c, and an adjustment column 302c and an adjustment coil spring 302d are provided on the lower side of the rotating adjustment member 302a, one end of the adjustment coil spring 302d is fixedly connected to the rotating adjustment member 302a, and the other end is connected to the adjustment column 302c.
[0044] Furthermore, the lower side of the rotating adjustment member 302a is a rotating disk 302a-1, and a coil spring connecting column 302a-2 is provided at the center position of the lower side of the rotating disk 302a-1, and storage connecting columns 302a-3 are provided at both ends of the lower side. An adjustment slot 302a-4 is provided between the storage connecting column 302a-3 and the coil spring connecting column 302a-2, and the adjustment column 302c is provided in the adjustment slot 302a-4. The length of the storage connecting column 302a-3 is shorter than that of the adjustment column 302c, and the difference is consistent with the height of the knob limit tooth ring 102c-1. One end of the adjustment coil spring 302d is fixedly connected to the coil spring connecting column 302a-2.
[0045] Furthermore, an annular protrusion 302a-5 is provided on the side of the rotating adjustment member 302a, which cooperates with the adjustment spring piece 302b. A limiting tooth 302a-6 is also provided on the side of the rotating adjustment member 302a, which cooperates with the knob limiting tooth ring 102c-1.
[0046] Furthermore, the adjusting spring sheet 302b includes a first adjusting section 302b-1 and a second adjusting section 302b-2, which cooperate with the annular protrusion 302a-5. When the annular protrusion 302a-5 is located at the uppermost end of the adjusting spring sheet 302b, the limiting tooth 302a-6 is located on the upper side of the knob limiting tooth ring 102c-1. When the annular protrusion 302a-5 is located in the first adjusting section 302b-1, the limiting tooth 302a-6 cooperates with the knob limiting tooth ring 102c-1. When the annular protrusion 302a-5 is located in the second adjusting section 302b-2, the limiting tooth 302a-6 is located on the lower side of the knob limiting tooth ring 102c-1.
[0047] When in use, place the catheter in the storage disc 301, and surround the adjusting cylinder 301b so that its two ends extend out from the catheter channel respectively, then place the storage cover 102 on the upper end of the storage shell 101. After locking, press and rotate the adjusting piece 302a to make the annular protrusion 302a-5 cooperate with the second adjusting section 302b-2. At this time, the limit tooth 302a-6 is located on the lower side of the knob limit tooth ring 102c-1, and the storage connecting column 302a-3 cooperates with the storage rotating groove 301b-1. At this time, rotate the rotating adjusting piece 302a clockwise to make the storage connecting column 302a-3 drive the storage disc 301 to rotate, and the catheter is stored around the storage baffle 301c.
[0048] In summary, the catheters are stored by the storage disc 301 and the adjustment assembly 302, so that the reserved catheters can be placed in order around the storage baffle 301c, which is convenient for management.
[0049] Example 3
[0050] Reference Figures 1 to 8 , which is the third embodiment of the present invention, and is based on the above embodiments:
[0051] When in use, for the device that has been stored, the rotating adjustment piece 302a is stretched outward so that the annular protrusion 302a-5 cooperates with the first adjustment section 302b-1. At this time, the limiting tooth 302a-6 cooperates with the knob limiting tooth ring 102c-1 to limit the rotating adjustment piece 302a. At the same time, the storage connecting column 302a-3 disengages from the storage rotation groove 301b-1, and the adjustment column 302c cooperates with the adjustment rotation groove 301b-2, releasing the rotation restriction of the storage disc 301. At this time, the elastic force of the adjustment spring piece 302b is in the initial stable state. When the patient needs to turn around, etc., the catheter needs to be stretched, and the catheter drives the storage disc 301 to rotate for length adjustment. After returning to its original position, the catheter is retracted into the storage disc 301 under the action of the elastic force of the adjustment spring piece 302b, which is convenient for the management of the catheter.
[0052] In summary, the storage unit 300 can store and organize the catheter, and when the patient needs it, the catheter can be stretched to drive the adjustment spring piece 302b to apply a restoring force to it, so that it can be automatically retracted into the device after use, ensuring the orderliness of the catheter.
[0053] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0054] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.
[0055] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.
Claims
1. An ECMO catheter storage and fixing clamp, characterized by: include, A fixed housing unit (100) comprises a storage housing (101), wherein the upper end of the storage housing (101) is connected to a storage cover plate (102); A cover plate engaging unit (200) comprises a clamping block (201) connected to the storage cover plate (102) and cooperating with the storage housing (101); a clamping block spring (202) is further provided on the rear side of the clamping block (201); one end of the clamping block spring (202) is fixedly connected to the storage cover plate (102), and the other end is connected to the clamping block (201); The storage unit (300) comprises a storage disc (301), wherein the storage disc (301) is arranged in the storage shell (101), and an adjustment component (302) is further arranged on the upper side of the storage disc (301), and the adjustment component (302) is connected and matched with the storage cover (102).
2. The ECMO catheter receiving and fixing clamp according to claim 1, wherein: The storage shell (101) is a cylindrical structure with an opening on the upper side, and a buckle (101a) is provided on the lower side thereof. The buckle (101a) is a U-shaped structure, and two buckles are provided at intervals on the left and right sides. A plurality of protrusions (101a-1) are provided at intervals inside the buckle (101a).
3. The ECMO catheter receiving and fixing clamp according to claim 2, characterized in that: The storage shell (101) is symmetrically provided with conduit through holes (101b) on both sides, a rotation groove (101c) is provided at the center thereof, and the storage shell (101) is provided with a connection groove (101d) on the inner side of the side wall of the conduit through hole (101b), and the end of the connection groove (101d) is a snap-fit groove (101d-1).
4. The ECMO catheter receiving and fixing clamp according to claim 3, characterized in that: A positioning ring (102a) is provided on the lower side of the storage cover (102), the outer diameter of which is consistent with the inner diameter of the storage shell (101), and openings are provided on both sides of the positioning ring (102a). The storage cover (102) is provided with a card block connection hole (102b) at the opening position, and the middle part of the card block connection hole (102b) is a spring connection groove (102b-1). The storage cover (102) is also provided with a knob connection hole (102c) in the middle part, and a knob limit tooth ring (102c-1) is provided on the side wall of the knob connection hole (102c).
5. The ECMO catheter receiving and fixing clamp according to claim 4, characterized in that: The clamping block (201) is arranged in the clamping block connecting hole (102b) and cooperates with the connecting groove (101d); its upper end is an opening and closing plate (201a), and its lower end is a clamping block (201b); the front end of the clamping block (201b) is a slope block (201b-1) which cooperates with the clamping groove (101d-1); and the clamping block spring (202) is arranged in the spring connecting groove (102b-1).
6. The ECMO catheter receiving and fixing clamp according to claim 5, characterized in that: A rotating connecting column (301a) is provided on the lower side of the storage disc (301) and cooperates with the connecting groove (101d). An adjusting cylinder (301b) is symmetrically provided on the upper side of the storage disc (301). A storage rotating groove (301b-1) is provided at the center position of the upper end of the adjusting cylinder (301b). An adjusting rotating groove (301b-2) is further provided at the center position of the storage rotating groove (301b-1) toward the center position of the storage disc (301). The depth of the storage rotating groove (301b-1) is half the depth of the adjusting rotating groove (301b-2). A storage baffle (301c) is also provided along the side of the storage disc (301). The projection of the storage baffle is a circular arc segment, one end of which is connected to the adjusting cylinder (301b), and the other end forms a conduit channel between the adjusting cylinder (301b).
7. The ECMO catheter receiving and fixing clamp according to claim 6, characterized in that: The adjustment assembly (302) includes a rotating adjustment member (302a) that cooperates with the knob connecting hole (102c). The adjustment assembly (302) also includes an adjustment spring sheet (302b) that is arranged on the side wall of the knob connecting hole (102c). An adjustment column (302c) and an adjustment coil spring (302d) are arranged on the lower side of the rotating adjustment member (302a). One end of the adjustment coil spring (302d) is fixedly connected to the rotating adjustment member (302a), and the other end is connected to the adjustment column (302c).
8. The ECMO catheter receiving and fixing clamp according to claim 7, characterized in that: The lower side of the rotating adjustment member (302a) is a rotating disk (302a-1), a coil spring connecting column (302a-2) is provided at the center position of the lower side of the rotating disk (302a-1), and storage connecting columns (302a-3) are provided at both ends of the lower side, an adjustment slot (302a-4) is provided between the storage connecting column (302a-3) and the coil spring connecting column (302a-2), and the adjustment column (302c) is provided in the adjustment slot (302a-4).
9. The ECMO catheter receiving and fixing clamp according to claim 8, characterized in that: The side of the rotating adjustment member (302a) is provided with an annular protrusion (302a-5) which cooperates with the adjustment spring sheet (302b). The side of the rotating adjustment member (302a) is also provided with a limiting tooth (302a-6) which cooperates with the knob limiting tooth ring (102c-1).
10. The ECMO catheter receiving and fixing clamp according to claim 9, characterized in that: The adjusting spring piece (302b) comprises a first adjusting section (302b-1) and a second adjusting section (302b-2), which cooperate with the annular protrusion (302a-5).