CN216603745U

CN216603745U - PICC puts a tub and prevents vein thrombus device

Info

Publication number: CN216603745U
Application number: CN202122483391.5U
Authority: CN
Inventors: 高显妮
Original assignee: Second Affiliated Hospital School of Medicine of Xian Jiaotong University
Current assignee: Second Affiliated Hospital School of Medicine of Xian Jiaotong University
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-27
Anticipated expiration: 2031-10-14

Abstract

The application discloses PICC puts a tub and prevents vein thrombus device, including first guard plate and second guard plate. Through first guard plate, the second guard plate, backup pad and fixed band cooperation, in the protection of opposition pipe department, make first guard plate and second guard plate wear more comfortablely, and through the cooperation of fixed band and anti-skidding silica gel pad, make first guard plate and second guard plate and arm fixed firm, thereby can avoid first guard plate and second guard plate and protect with putting the pipe department, the protecting effect of first guard plate and second guard plate has been improved, thereby make things convenient for first guard plate, the arm of different thickness of second guard plate and backup pad adaptation, the application scope of first guard plate and second guard plate has been improved, conveniently take down fixed band and dust cloth alone and wash, avoid leading to the fact behind fixed band and the dirty dust cloth to put pipe department and pollute, the protecting effect of venous thrombosis device has further been improved.

Description

PICC puts a tub and prevents vein thrombus device

Technical Field

The application relates to a prevent vein thrombus device, especially a PICC puts a tub and prevents vein thrombus device.

Background

The PICC is put the pipe and is utilized the pipe to puncture from the vein of periphery arm, and the pipe directly reaches the great vein that is close to the heart, avoids the direct contact of chemotherapy medicine and arm vein, and the blood flow speed of great vein is very fast in addition, can wash the thinning and treat medicine rapidly, prevents the stimulation of medicine to the blood vessel.

In order to facilitate the movement of the arm of a patient with the tube, the formation of thrombus is reduced, the tube is protected, a protective cover needs to be worn at the arm after the tube is placed on the patient, so that the tube is easily contacted with the protective cover structure when the movement of the patient is high because the protective covers are directly sleeved at the arm, although the tube is prevented from being contacted with the outside. Therefore, a PICC puts forward vein thrombosis device of preventing to above-mentioned problem.

Disclosure of Invention

The utility model provides a PICC puts a tub and prevents vein thrombus device in this embodiment is used for solving the PICC among the prior art and puts a tub problem of preventing vein thrombus protection casing put the easy and protection casing contact of pipe department when using.

According to one aspect of the application, a PICC catheter venous thrombosis prevention device is provided and comprises a first protection plate and a second protection plate; first guard plate and second guard plate bottom all are connected with the backup pad through adjusting the structure, first guard plate and second guard plate are relative also through adjusting the structural connection, both sides the backup pad bottom all is connected with the fixed band through split structural connection, two the round hair face has all been sewed up to the one end that the fixed band is relative, first guard plate and second guard plate top all are fixed with the thorn hair face.

Further, adjust the structure and include the regulating plate, the bottom that the second guard plate is close to the one end of first guard plate, first guard plate and second guard plate all is fixed with the regulating plate, the regulating plate other end all is fixed with the limiting plate, regulating plate and limiting plate all respectively with first guard plate and backup pad sliding connection, every the first guard plate or the inside screw thread connection that all pass through of backup pad of regulating plate side have clamping screw, and clamping screw is close to the one end of regulating plate and all is fixed with circular splint.

Furtherly, the split structure includes the connecting plate, every the fixed band top all is fixed with the connecting plate, and connecting plate upper portion all with backup pad bottom block, the inside gag lever post that has all slided to run through of connecting plate, the gag lever post inboard all is connected with the backup pad through the thread groove.

Further, side corner all is fixed with another thorn hair side around first guard plate and the second guard plate, and another thorn hair side front side all is connected with dustproof cloth through another circle hair side, the last symmetry of dustproof cloth is fixed with supplementary stretching strap, dustproof cloth both ends all set up to with first guard plate and second guard plate corner complex arc, dustproof cloth middle part all sets up to the fold form, dustproof cloth highly all is greater than the height of first guard plate.

Furthermore, the first protection plate and the support plate are internally provided with T-shaped movable grooves matched with the adjusting plate and the limiting plate, and one side of the circular clamping plate, which is close to the adjusting plate, is glued with a rubber pad.

Further, the height of first guard plate and second guard plate equals, the thickness of first guard plate equals the thickness of second guard plate, the width of first guard plate and second guard plate equals, two the anti-skidding silica gel pad has all been glued to one side that the backup pad is relative.

Furthermore, all the cover is equipped with the movable block on the inside gag lever post of backup pad, and the inside symmetry of movable block is fixed with the dwang, the dwang all is connected with the inside rotation of gag lever post, all the cover is equipped with the spring on the gag lever post of movable block inboard, and the spring both ends all fix respectively on movable block and backup pad.

Furthermore, the height of fixed band all is greater than the sum of the length size of first guard plate and second guard plate, the width of fixed band all is less than the width half of first guard plate.

Further, the width of the burr surface is equal to the width of the first protection plate, and the width of the round burr surface is equal to the width of the fixing belt.

Furthermore, the arc-shaped grooves are formed in one end, extending to the outer side of the supporting plate, of the limiting rod, the rectangular grooves matched with the moving block are formed in the supporting plate, the through holes matched with the limiting rod are formed in the moving block, and the threaded grooves matched with the limiting rod are formed in the supporting plate on the inner side of the connecting plate.

Through the above-mentioned embodiment of this application, adjustable split formula protective structure has been adopted, through the cooperation of first guard plate and second guard plate, opposition pipe end department protects, bind first guard plate and second guard plate in arm department through the fixed band, the stable laminating of rethread anti-skidding silica gel pad assurance and second guard plate is on the arm of putting pipe department both sides, avoid first guard plate and second guard plate direct with put pipe department contact, and at fixed band and first guard plate, under the cooperation of second guard plate, make the protection casing more comfortable under the cooperation, the problem of current PICC put tub prevent venous thrombosis device has been solved, great improvement the guard effect of protection casing.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic sectional front view of a portion of an embodiment of the present application;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to an embodiment of the present application;

fig. 4 is an enlarged schematic view of a structure at B in fig. 2 according to an embodiment of the present application.

In the figure: 1. first guard plate, 2, second guard plate, 3, backup pad, 4, fixed band, 5, round matte, 6, thorn matte, 7, regulating plate, 8, limiting plate, 9, circular splint, 10, clamping screw, 11, connecting plate, 12, gag lever post, 13, movable block, 14, dwang, 15, spring, 16, anti-skidding silica gel pad, 17, dustproof cloth, 18, supplementary stretching strap.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Prevent vein thrombus device in this embodiment can be applicable to PICC and put the pipe mount, for example, provides such a PICC at this embodiment and puts a pipe mount as follows, prevents vein thrombus device in this embodiment can be used for PICC to put a pipe mount.

PICC puts a tub mount and includes: a support plate; two clamping mechanisms are arranged, one of the two clamping mechanisms is fixed on the supporting plate, and the other clamping mechanism slides with the supporting plate; the first adjusting mechanism is connected with the clamping mechanism and used for driving the clamping mechanism to adjust the position; the supporting device is connected with the supporting plate and is arranged perpendicular to the supporting plate; the rotation limiting device is arranged on one side of the supporting plate and used for limiting the shoulders of the patient; the clamping mechanism comprises an electric telescopic rod and two clamping jaws hinged to the movable end of the electric telescopic rod, and the clamping jaws are hinged to the fixed end of the electric telescopic rod through a connecting rod hinged to the clamping jaws; the clamping jaw is arranged in an arc-shaped structure, and a rubber pad is arranged on the inner side of the clamping jaw; the clamping jaw is arranged in an arc-shaped structure, and a rubber pad is arranged on the inner side of the clamping jaw; the first adjusting mechanism comprises a threaded rod which rotates in an embedded groove arranged on the supporting plate and a threaded sleeve which is in threaded connection with the threaded rod, the threaded sleeve is fixedly connected with one of the clamping mechanisms, and one end of the threaded rod penetrates through the embedded groove and is fixed with the rotary table; the support device comprises a support fixedly connected with the support plate and an arc-shaped support piece rotatably connected with the support, and a locking button is arranged at the position where the support is connected with the arc-shaped support piece.

Of course, the present embodiment may also be used for other PICC catheterization holders. The description is omitted, and the description is provided below for the venous thrombosis prevention device according to the embodiment of the present application.

Referring to fig. 1-4, a PICC catheter venous thrombosis prevention device includes a first protection plate 1 and a second protection plate 2;

first guard plate

1 and 2 bottoms of second guard plate all are connected with backup pad 3 through adjusting the structure,

first guard plate

1 and 2 relative also through adjusting the structural connection of second guard plate, 3 bottoms of both sides backup pad all are connected with fixed band 4 through split structural connection, the round hair face 5 has all been sewed up to the one end that two fixed band 4 are relative,

first guard plate

1 and 2 tops of second guard plate all are fixed with thorn hair face 6, protect through

first guard plate

1 and 2 opposition pipe departments of second guard plate, rethread backup pad 3 and the cooperation of fixed band 4, can be with first guard plate 1 and the comparatively stable binding of second guard plate 2 on the arm, thereby avoid first guard plate 1 and second guard plate 2 when the activity with put a tub department contact, with this protective effect who guarantees first guard plate 1 and second guard plate 2.

The adjusting structure comprises an adjusting plate 7, one end, close to the first protection plate 1, of the second protection plate 2, the adjusting plate 7 is fixed at the bottom ends of the first protection plate 1 and the second protection plate 2, a limiting plate 8 is fixed at the other end of the adjusting plate 7, the adjusting plate 7 and the limiting plate 8 are respectively in sliding connection with the first protection plate 1 and the supporting plate 3, a fixing screw 10 is connected to the inner portion of the first protection plate 1 or the supporting plate 3 on the side edge of each adjusting plate 7 through threads, a circular clamping plate 9 is fixed at one end, close to the adjusting plate 7, of the fixing screw 10, the distance between the two supporting plates 3 and the overall height of the supporting plates 3 are adjusted through matching of the adjusting plate 7 and the fixing screw 10, the adjusting structure is convenient to adapt to arms with different thicknesses, and the application range of the first protection plate 1 and the second protection plate 2 is improved; the splitting structure comprises a connecting plate 11, the top end of each fixing band 4 is fixedly provided with the connecting plate 11, the upper part of each connecting plate 11 is clamped with the bottom end of the supporting plate 3, a limiting rod 12 penetrates through the inside of each connecting plate 11 in a sliding manner, and the inner side of each limiting rod 12 is connected with the corresponding supporting plate 3 through a thread groove, so that the fixing bands 4 can be taken down independently for cleaning and disinfection; the front and rear corners of the first protection plate 1 and the second protection plate 2 are both fixed with another rough surface 6, the front side of the other rough surface 6 is connected with dustproof cloth 17 through another round rough surface 5, auxiliary pull belts 18 are symmetrically fixed on the dustproof cloth 17, two ends of the dustproof cloth 17 are both set into arc shapes matched with the corners of the first protection plate 1 and the second protection plate 2, the middle part of the dustproof cloth 17 is pleated, the height of the dustproof cloth 17 is greater than that of the first protection plate 1, the pipe arrangement inside the first protection plate 1 and the second protection plate 2 is protected in and out of a dust shielding mode through two sides of the dustproof cloth 17, and the corrugated design of the dustproof cloth 17 is convenient to adapt to adjustment between the first protection plate 1 and the second protection plate 2, and the dustproof cloth 17 can be opened to facilitate ventilation;

t-shaped movable grooves matched with the adjusting plate 7 and the limiting plate 8 are formed in the first protection plate 1 and the supporting plate 3, rubber pads are glued to one side, close to the adjusting plate 7, of the circular clamping plate 9, the first protection plate 1 and the second protection plate 2 are prevented from being separated, the supporting plate 3 is separated from the first protection plate 1 and the second protection plate 2, friction force between the circular clamping plate 9 and the adjusting plate 7 is increased, and the first protection plate 1, the second protection plate 2 and the supporting plate 3 are connected more firmly and stably after adjustment; the heights of the first protection plate 1 and the second protection plate 2 are equal, the thickness of the first protection plate 1 is equal to that of the second protection plate 2, the widths of the first protection plate 1 and the second protection plate 2 are equal, an anti-skidding silica gel pad 16 is glued on one side, opposite to the two support plates 3, so that the first protection plate 1 and the second protection plate 2 can be conveniently aligned, and the friction between the inner sides of the support plates 3 and an arm is increased through the anti-skidding silica gel pad 16, so that the first protection plate 1 and the second protection plate 2 are more stable after being worn, and the first protection plate 1 and the second protection plate 2 are prevented from being in contact with a pipe placing position; the movable block 13 is sleeved on the limiting rod 12 inside the supporting plate 3, the rotating rods 14 are symmetrically fixed inside the movable block 13, the rotating rods 14 are rotatably connected with the inside of the limiting rod 12, the springs 15 are sleeved on the limiting rod 12 inside the movable block 13, two ends of each spring 15 are respectively fixed on the movable block 13 and the supporting plate 3, and the limiting rod 12 is placed more firmly and stably inside the connecting plate 11 through the cooperation of the movable block 13 and the springs 15; the height of each fixing band 4 is larger than the sum of the lengths of the first protection plate 1 and the second protection plate 2, the width of each fixing band 4 is smaller than half of the width of the first protection plate 1, the two fixing bands 4 are arranged in a staggered mode from front to back, the round hair surfaces 5 on the fixing bands 4 can be bonded and fixed with the barbed surfaces 6, and the fixing bands 4 on the two sides are prevented from affecting each other when being wound; the width of the barbed surface 6 is equal to that of the first protection plate 1, the width of the round roughened surface 5 is equal to that of the fixing belt 4, and the round roughened surface 5 can be bonded on the barbed surface 6, so that the fixing belt 4 can be conveniently matched with the first protection plate 1 and the second protection plate 2, and two sides of the support plate 3 are bound on an arm; arc wall has all been seted up to the one end that gag lever post 12 extended to the backup pad 3 outside, backup pad 3 is inside all seted up with movable block 13 complex rectangular channel, and movable block 13 is inside all seted up with gag lever post 12 complex through-hole, all set up on the inboard backup pad 3 of connecting plate 11 with gag lever post 12 complex thread groove, connecting plate 11 is inside to be seted up with gag lever post 12 complex fixed orifices, conveniently stimulate gag lever post 12 when split fixed band 4, when guaranteeing that movable block 13 can be only horizontal migration under gag lever post 12's drive, guarantee that gag lever post 12 can rotate to with the inside screw fixation of backup pad 3, thereby the firmness that fixed band 4 and backup pad 3 are connected has been improved.

When the utility model is used, when a first protection plate 1 and a second protection plate 2 need to be used, fixing screw rods 10 on the first protection plate 1 and the support plate 3 are firstly screwed, a circular clamp plate 9 is driven to move outwards under the action of threads, so that the clamping and fixing of the circular clamp plate 9 on an adjusting plate 7 are released, then the second protection plate 2 is pulled, the first protection plate 1 and the second protection plate 2 are clamped to two sides of a pipe placing position, then the fixing screw rods 10 on the first protection plate 1 are screwed, so that the first protection plate 1 and the second protection plate 2 are fixed, then the support plate 3 at the bottom end is pulled, the top ends of the first protection plate 1 and the second protection plate 2 are ensured not to be contacted with the pipe placing position, after the adjustment is completed, the fixing screw rods 10 on the support plate 3 are screwed, the circular clamp plate 9 is driven to clamp and fix the adjusting plate 7 in the support plate 3, then fixing belts 4 at two sides are tied on an arm, the first protection plate 1 and the second protection plate 2, and is fixed under the adhesion of the burred surface 6 and the round burred surface 5, and then the dustproof cloth 17 at the front and the back sides is adhered to the front and the back sides of the first protection plate 1 and the second protection plate 2 through the other round burred surface 5 and the burred surface 6, when the pipe ends need to be cleaned, the fixing band 4 is directly pulled to lead the round burred surface 5 to be in adhesion contact with the burred surface 6, thus the first protection plate 1 and the second protection plate 2 can be taken down from the arm, when the fixing band 4 needs to be cleaned, the limiting rod 12 is rotated to lead the thread fixing between the inner end of the limiting rod 12 and the supporting plate 3 to be released, then the limiting rod 12 is pulled to drive the moving block 13 to extend out of the connecting plate 11, thus the fixing band 4 can be directly taken out, after the cleaning is finished, the connecting plate 11 is inserted into the bottom end of the supporting plate 3, then the limiting rod 12 is loosened, after the limiting rod 12 passes through the connecting plate 11, the limiting rod 12 is screwed, make the inner and 3 threaded fixation of backup pad of gag lever post 12, when needs wash dustproof cloth 17, directly pull down dustproof cloth 17 through supplementary stretching strap 18, wash the completion after, with dustproof cloth 17 bond again on first guard plate 1 and second guard plate 2 can.

The application has the advantages that:

1. the protective device is simple to operate, the first protective plate 1 and the second protective plate 2 are more comfortable to wear when the pipe is oppositely arranged for protection through the cooperation of the first protective plate 1, the second protective plate 2, the supporting plate 3 and the fixing band 4, and the first protective plate 1 and the second protective plate 2 are firmly fixed with the arm through the cooperation of the fixing band 4 and the anti-slip silica gel pad 16, so that the first protective plate 1 and the second protective plate 2 can be prevented from being protected with the pipe arranging position, and the protective effect of the first protective plate 1 and the second protective plate 2 is improved;

2. the structure is reasonable, the length between the first protection plate 1 and the second protection plate 2 and the height between the first protection plate 1 and the support plate 3 and between the second protection plate 2 and the support plate 3 can be conveniently adjusted by matching the adjusting plate 7 with the fixing screw rod 10, so that the first protection plate 1, the second protection plate 2 and the support plate 3 can be conveniently adapted to arms with different thicknesses, and the application range of the first protection plate 1 and the second protection plate 2 is widened;

3. this application is rational in infrastructure, through between fixed band 4 and backup pad 3, but dustproof cloth 17 and first guard plate 1, the detachable fraction design between the second guard plate 2, conveniently takes off fixed band 4 and dustproof cloth 17 alone and washs, avoids leading to the fact to put a tub department after fixed band 4 and dustproof cloth 17 are dirty and pollutes, has further improved the protection effect of preventing venous thrombosis device.

The present application relates to circuits and electronic components and modules, all of which are well within the skill of those in the art and, needless to say, does not relate to software or process improvements.

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

Claims

1. The utility model provides a PICC puts a tub and prevents vein thrombus device which characterized in that: comprises a first protection plate (1) and a second protection plate (2); first guard plate (1) and second guard plate (2) bottom all are connected with backup pad (3) through adjusting the structure, first guard plate (1) and second guard plate (2) are relative also through adjusting the structural connection, both sides backup pad (3) bottom all is connected with fixed band (4), two through split structural connection the one end that fixed band (4) is relative all has sewed up round matte face (5), first guard plate (1) and second guard plate (2) top all are fixed with thorn matte face (6).

2. The PICC catheter anti-venous thrombosis device of claim 1, wherein: the adjusting structure comprises an adjusting plate (7), the bottom ends of one end, a first protective plate (1) and a second protective plate (2) of a first protective plate (1) are close to a second protective plate (2) are fixed with the adjusting plate (7), the other end of the adjusting plate (7) is fixed with a limiting plate (8), the adjusting plate (7) and the limiting plate (8) are respectively connected with the first protective plate (1) and a supporting plate (3) in a sliding mode, each of the first protective plate (1) or the supporting plate (3) on the side of the adjusting plate (7) is internally connected with a fixing screw rod (10) through threads, and one end of the fixing screw rod (10) close to the adjusting plate (7) is fixed with a circular clamping plate (9).

3. The PICC catheter anti-venous thrombosis device of claim 1, wherein: the split structure includes connecting plate (11), every fixed band (4) top all is fixed with connecting plate (11), and connecting plate (11) upper portion all with backup pad (3) bottom block, connecting plate (11) inside all slides and has run through gag lever post (12), gag lever post (12) inboard all is connected with backup pad (3) through the thread groove.

4. The PICC catheter anti-venous thrombosis device of claim 1, wherein: first guard plate (1) and second guard plate (2) front and back side corner all is fixed with another thorn coarse side (6), and another thorn coarse side (6) front side all is connected with dustproof cloth (17) through another circle coarse side (5), the symmetry is fixed with supplementary stretching strap (18) on dustproof cloth (17), dustproof cloth (17) both ends all set up to the complex arc with first guard plate (1) and second guard plate (2) corner, dustproof cloth (17) middle part all sets up to the fold form, the height of dustproof cloth (17) all is greater than the height of first guard plate (1).

5. The PICC catheter anti-venous thrombosis device of claim 2, wherein: first guard plate (1) and backup pad (3) are inside all to be seted up with regulating plate (7) and limiting plate (8) complex "T" shape activity groove, one side that circular splint (9) are close to regulating plate (7) all is glued with the rubber pad.

6. The PICC catheter anti-venous thrombosis device of claim 1, wherein: the height of first guard plate (1) and second guard plate (2) is equal, the thickness of first guard plate (1) equals the thickness of second guard plate (2), the width of first guard plate (1) and second guard plate (2) equals, two one side that backup pad (3) is relative all is glued anti-skidding silica gel pad (16).

7. The PICC catheter anti-venous thrombosis device of claim 3, wherein: all the cover is equipped with movable block (13) on gag lever post (12) inside backup pad (3), and the inside symmetry of movable block (13) is fixed with dwang (14), dwang (14) all are connected with gag lever post (12) internal rotation, all the cover is equipped with spring (15) on gag lever post (12) of movable block (13) inboard, and spring (15) both ends all fix respectively on movable block (13) and backup pad (3).

8. The PICC catheter anti-venous thrombosis device of claim 1, wherein: the height of fixed band (4) all is greater than the length size sum of first guard plate (1) and second guard plate (2), the width of fixed band (4) all is less than the width half of first guard plate (1).

9. The PICC catheter anti-venous thrombosis device of claim 1, wherein: the width of the burr surface (6) is equal to that of the first protection plate (1), and the width of the round burr surface (5) is equal to that of the fixing belt (4).

10. The PICC catheter anti-venous thrombosis device of claim 3, wherein: the limiting rod (12) extends to one end of the outer side of the supporting plate (3) and is provided with an arc-shaped groove, the supporting plate (3) is internally provided with a rectangular groove matched with the moving block (13), the moving block (13) is internally provided with a through hole matched with the limiting rod (12), and the supporting plate (3) on the inner side of the connecting plate (11) is provided with a threaded groove matched with the limiting rod (12).