CN214512218U - Lower limb venipuncture integrated fixing device - Google Patents

Abstract

The utility model belongs to the technical field of medical appliances, especially, be a low limbs venipuncture integration fixing device, including the bandage, three left fixed bands of left side fixedly connected with of bandage, three right fixed bands of right side fixedly connected with of bandage, solid fixed ring is installed to the end of left side fixed band, be equipped with the magic subsides on the fixed band of right side, there is the thrombolytic catheter binding device at the top of bandage through nail knot fixed mounting, there is catheter sheath pipe fixing device at the top of bandage through nail knot fixed mounting, pressure sensor has been sewed up to the bottom of bandage and has held the layer, pressure sensor holds the internally mounted on layer and has pressure sensor, the electron device mount pad is installed at the top of bandage, install electronic display recorder on the electron device mount pad, this device has easy and simple to handle, training and study are comparatively easy, fixed firm advantage.

Description

Lower limb venipuncture integrated fixing device

Technical Field

The utility model belongs to the technical field of medical appliances, concretely relates to low limbs venipuncture integration fixing device.

Background

There are three clinically common methods for treating thrombus, the first is a manual mechanical method, in which the thrombus in the blood vessel is taken out by a surgical operation or a suction device. The second is to implant a stent to enlarge the lumen of the vessel. The third one is thrombolytic medicine therapy, which injects thrombolytic medicine via lower limb vein puncture indwelling tube to dissolve thrombus gradually to reach the aim of blood vessel conduction.

Compared with the prior art the problem that exists:

the existing lower limb venipuncture technology is complex in fixing mode operation, difficult in training and learning, not ideal in fixing effect and incapable of meeting use requirements.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a low limbs venipuncture integration fixing device, this device pass through bandage, left fixed band, solid fixed ring, right fixed band, magic subsides, dissolve bolt pipe and restraint device and pipe sheath pipe fixing device's setting, have easy and simple to handle, train comparatively easy with the study, fixed firm advantage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low limbs venipuncture integration fixing device, includes the bandage, three left fixed bands of left side fixedly connected with of bandage, three right fixed bands of right side fixedly connected with of bandage, solid fixed ring is installed to the end of left side fixed band, be equipped with the magic subsides on the fixed band of right side, the top of bandage has the thrombolytic catheter to receive the restraint device through button fixed mounting, the top of bandage has catheter sheath pipe fixing device through button fixed mounting, the bottom of bandage has sewed up pressure sensor and has held the layer, pressure sensor holds the internally mounted on layer and has pressure sensor, the electron device mount pad is installed at the top of bandage, install electronic display recorder on the electron device mount pad.

Preferably, the thrombolysis catheter bundling device comprises a fixing plate, wherein catheter clamps which are arranged in order are fixedly arranged at the top of the fixing plate, a transparent protective cover plate is hinged to the left side of the fixing plate, a plurality of ventilation openings are respectively formed in the top of the transparent protective cover plate and the fixing plate in a penetrating manner, a first buckle is fixedly arranged at the right side of the transparent protective cover plate, a first buckle seat is integrally formed at the right side of the fixing plate, the transparent protective cover plate and the fixing plate are locked through the first buckle and the first buckle seat, a catheter inlet and a catheter outlet are formed in the rear side of the transparent protective cover plate, before thrombolysis catheter indwelling, thrombolysis catheters are arranged and fixed through the plastic catheter clamps with elasticity on the thrombolysis catheter bundling device, the tail ends of the thrombolysis catheters are aligned with the catheter outlet, the indwelling end of the thrombolysis catheter is aligned with the catheter inlet, and the transparent protective cover plate is rotated, and closing the transparent protective cover plate, and locking the transparent protective cover plate and the fixing plate through the matching of the first hasp and the first hasp seat.

Preferably, pipe sheath pipe fixing device is including fixing box body and last fixed box body down, go up fixed box body with it is articulated through the articulated elements down between the fixed box body, down the top of fixed box body with the bottom of going up fixed box body is equipped with the terminal mouth of passing through of pipe and sheath pipe and passes through the mouth, go up fixed box body the interior roof with integrated into one piece has terminal fixing base of pipe and sheath pipe fixing base down between the interior diapire of fixed box body, the front side fixed mounting who goes up fixed box body has the second hasp, the front side fixed mounting of fixed box body has the second hasp seat down, go up fixed box body with down pass through between the fixed box body the second hasp with the second hasp seat locks, and terminal fixing base of pipe and sheath pipe fixing base all adopt elastoplast to make, carry out the centre gripping to pipe and sheath pipe and fix.

Preferably, the left side and the right side of electron device mount pad are integrated into one piece's limiting plate, the shaping is protruding with spacing on the limiting plate, the top of electron device mount pad is equipped with first power contact piece, still integrated into one piece has the elastic hasp on the electron device mount pad, the electron device mount pad passes through connecting wire and pressure sensor electric connection, and the left and right sides of electron display recorder is equipped with the spout, and with electron display recorder through spout and spacing protruding cooperation cunning, lock through the locking groove cooperation of elasticity hasp cooperation motor display recorder bottom, when needing to be changed and maintenance electron device mount pad, stir the elasticity hasp, can relieve the locking of elasticity hasp and locking groove, slide electronic display recorder from the electron device mount pad and take off.

Preferably, the top of the electronic display recording device is provided with a display screen and a radio frequency sensor, the bottom of the electronic display recording device is provided with a second power supply contact block, the bottom of the electronic display recording device is provided with a locking groove, the electronic display recording device is internally provided with a single chip microcomputer, a wireless communication transmission and alarm module, a storage module and a button battery, the electronic display recording device is provided with a switch button, the switch button is used for controlling the on-off of the electronic display recording device, a pressure sensor transmits detection data to the electronic device mounting seat through a connecting wire, the data is transmitted to the electronic display recording device through the contact between the first power supply contact block on the electronic device mounting seat and the second power supply contact block on the electronic display recording device, the data is displayed through the display screen, and medical personnel are prompted to adjust the tightness, if take place the bandage and tie up the condition of tieing up not firmly, pressure sensor monitors the oppression power and is too light, can carry out remote alarm through wireless communication transmission and alarm module, suggestion medical personnel handles before, medical personnel use the terminal tee bend of thrombolytic catheter and sheath pipe end to carry out the water conservancy diversion and when dosing, need touch the radio frequency inductor through the radio frequency card of attached for medical personnel's information is saved into storage module, and transmit to the high in the clouds through wireless communication transmission and alarm module, make clear and definite responsibility.

Preferably, the top of going up fixed box body is located the terminal top that passes through mouthful of pipe and sheath pipe and is equipped with the identification block, and the identification block is equipped with two, and the colour of every identification block is different, and the help distinguishes pipe and sheath pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

before the thrombolysis catheter is placed, the thrombolysis catheter is arranged and fixed through a catheter clamp with elasticity on a thrombolysis catheter bundling device, the tail end of the thrombolysis catheter is aligned with a catheter outlet, a placed fixed end of the thrombolysis catheter is aligned with a catheter inlet, then a transparent protective cover plate is rotated, the transparent protective cover plate is closed, the transparent protective cover plate and a fixed plate are locked through the matching of a first buckle and a first buckle seat, the tail end of the thrombolysis catheter and a thrombolysis sheath catheter respectively pass through a catheter tail end passing port and a sheath catheter passing port and are respectively fixed with a catheter tail end fixed seat and a sheath catheter fixed seat through a catheter tail end fixed seat and a sheath catheter fixed seat, then the upper fixed box body is closed, the upper fixed box body and the lower fixed box body are locked through a second buckle and a second buckle seat, when the lower limb is placed and fixed, a bandage is placed at a puncture position of a patient, the left fixing band and the right fixing band are wound below the legs of a patient, the right fixing band penetrates through the fixing ring on the left fixing band, the left fixing band is fixed through the magic tape after being tensioned, then the remaining needle can be punctured into a puncture position and fixed through the adhesive tape, the operation is simple and convenient, the training and the learning are easy, and the fixing is firm;

the pressure sensor detects the compression force of the bandage on the leg of the patient, the pressure sensor transmits detection data to the electronic device mounting seat through the connecting line, the data are transmitted to the electronic display recording device through the contact of the first power supply contact block on the electronic device mounting seat and the second power supply contact block on the electronic display recording device and are displayed through the display screen, medical staff is prompted to adjust the tightness, after the bandage is fixed, the medical staff punctures the remaining needle into the puncture position and fixes the indwelling needle through the adhesive tape, during the remaining period, the monitoring data of the pressure sensor are transmitted to the mobile terminal of the medical staff through the wireless communication transmission and alarm module, if the bandage is not firmly bound, the pressure sensor monitors that the compression force is too light, the remote alarm can be carried out through the wireless communication transmission and alarm module, and the medical staff is prompted to carry out the treatment in the future, the device can be used for timely finding the condition of infirm fixation while improving the comfort of the patient wearing the device;

medical personnel use the terminal tee bend of thrombolytic catheter and sheath pipe to carry out the water conservancy diversion and when dosing, need touch the radio frequency inductor through the radio frequency card of attached for medical personnel's information is saved into storage module, and transmits to the high in the clouds through wireless communication transmission and alarm module, makes clear to medical personnel's responsibility.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view A of the installation of the hydrant tube of the present invention;

FIG. 3 is a schematic view B of the installation of the hydrant tube according to the present invention;

FIG. 4 is a schematic view of the present invention in a partial front view;

FIG. 5 is a schematic sectional view of the present invention in a partial front view;

FIG. 6 is a schematic top view of the thrombolysis catheter constriction device of the present invention;

fig. 7 is a schematic view of the electronic device mounting base shaft according to the present invention;

fig. 8 is an axial view of the electronic display recording device of the present invention;

fig. 9 is a schematic bottom view of the electronic display recording device of the present invention;

fig. 10 is a schematic diagram of the circuit connection of the present invention.

In the figure: 100. binding bands; 210. a left securing strap; 211. a fixing ring; 220. a right fixing band; 221. magic tape; 300. a thrombolysis catheter constriction device; 310. a fixing plate; 320. A catheter clamp; 330. a transparent protective cover plate; 331. a vent; 332. a catheter inlet; 333. a conduit lead-out port; 341. a first buckle; 342. a first buckle seat; 400. a catheter sheath fixing device; 410. a lower fixed box body; 411. a second buckle seat; 420. an upper fixed box body; 421. a second buckle; 422. an identification block; 430. a catheter tip access port; 440. A sheath passage opening; 450. a catheter end fixing seat; 460. a sheath tube fixing seat; 500. A pressure sensor receiving layer; 510. a pressure sensor; 600. an electronic device mount; 610. A limiting plate; 620. a limiting bulge; 630. a first power supply contact block; 640. elastic lock catches; 700. an electronic display recording device; 710. a display screen; 720. a radio frequency inductor; 730. A second power contact block; 740. a locking groove; 750. a single chip microcomputer; 760. a wireless communication transmission and alarm module; 770. a storage module; 780. a button cell; 790. and a button is switched on and off.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-10, the present invention provides the following technical solutions: the utility model provides a lower limbs venipuncture integration fixing device, includes bandage 100, three left fixed bands 210 of left side fixedly connected with of bandage 100, three right fixed bands 220 of right side fixedly connected with of bandage 100, solid fixed ring 211 is installed to the end of left side fixed band 210, be equipped with magic subsides 221 on the fixed band 220 of the right side, there is the thrombolytic catheter bundling device 300 at bandage 100's top through button fixed mounting, there is catheter sheath pipe fixing device 400 at bandage 100's top through button fixed mounting, it holds layer 500 to have stitched the pressure sensor in bandage 100's bottom, the internally mounted that layer 500 was held to the pressure sensor has pressure sensor 510, electron device mount pad 600 is installed at bandage 100's top, install electronic display recorder 700 on the electron device mount pad 600.

In this embodiment: the utility model provides a lower limbs venipuncture integration fixing device, includes bandage 100, three left fixed bands 210 of left side fixedly connected with of bandage 100, three right fixed bands 220 of right side fixedly connected with of bandage 100, solid fixed ring 211 is installed to the end of left side fixed band 210, be equipped with magic subsides 221 on the fixed band 220 of the right side, there is the thrombolytic catheter bundling device 300 at bandage 100's top through button fixed mounting, there is catheter sheath pipe fixing device 400 at bandage 100's top through button fixed mounting, it holds layer 500 to have stitched the pressure sensor in bandage 100's bottom, the internally mounted that layer 500 was held to the pressure sensor has pressure sensor 510, electron device mount pad 600 is installed at bandage 100's top, install electronic display recorder 700 on the electron device mount pad 600.

Specifically, the thrombolysis catheter bundling device 300 comprises a fixing plate 310, wherein the top of the fixing plate 310 is fixedly provided with catheter clamps 320 which are arranged in order, the left side of the fixing plate 310 is hinged with a transparent protective cover plate 330, the top of the transparent protective cover plate 330 and the fixing plate 310 are both provided with a plurality of ventilation holes 331 through which a first buckle 341 is fixedly arranged on the right side of the transparent protective cover plate 330, the right side of the fixing plate 310 is integrally formed with a first buckle seat 342, the transparent protective cover plate 330 and the fixing plate 310 are locked through the first buckle 341 and the first buckle seat 342, the rear side of the transparent protective cover plate 330 is provided with a catheter inlet 332 and a catheter outlet 333, before the thrombolysis catheter is detained, the thrombolysis catheter is arranged and fixed through the elastic plastic catheter clamps 320 on the thrombolysis catheter bundling device 300, the distal end of the thrombolytic catheter is aligned with the catheter outlet 333, the indwelling fixed end of the thrombolytic catheter is aligned with the catheter inlet 332, the transparent protective cover 330 is rotated to close the transparent protective cover 330, and the transparent protective cover 330 and the fixed plate 310 are locked by the first latch 341 and the first latch holder 342.

Specifically, the catheter sheath tube fixing device 400 comprises a lower fixing box body 410 and an upper fixing box body 420, the upper fixing box body 420 is hinged to the lower fixing box body 410 through a hinge, the top of the lower fixing box body 410 and the bottom of the upper fixing box body 420 are provided with a catheter terminal through port 430 and a sheath tube through port 440, a catheter terminal fixing seat 450 and a sheath tube fixing seat 460 are integrally formed between the inner top wall of the upper fixing box body 420 and the inner bottom wall of the lower fixing box body 410, a second buckle 421 is fixedly mounted on the front side of the upper fixing box body 420, a second buckle seat 411 is fixedly mounted on the front side of the lower fixing box body 410, the upper fixing box body 420 and the lower fixing box body 410 are locked through the second buckle 421 and the second buckle seat 411, and the catheter terminal fixing seat 450 and the sheath tube fixing seat 460 are both made of elastic plastics, and clamping and fixing the catheter and the sheath.

Specifically, the left side and the right side of the electronic device mounting base 600 are integrally formed limiting plates 610, a limiting protrusion 620 is formed on the limiting plate 610, a first power contact block 630 is disposed at the top of the electronic device mounting base 600, the electronic device mounting base 600 is further integrally formed with an elastic lock 640, the electronic device mounting base 600 is electrically connected with the pressure sensor 510 through a connecting wire, sliding grooves are formed on the left side and the right side of the electronic display recording device 700, the electronic display recording device 700 is matched with the limiting protrusions 620 through the sliding grooves and slides in, the elastic locking buckle 640 is matched with the locking groove 740 at the bottom of the motor display recording device 700 for locking, when the electronic device mounting seat 600 needs to be replaced and maintained, the elastic lock catch 640 is pulled, the locking between the elastic latch 640 and the locking groove 740 can be released, and the electronic display recording device 700 can be slid and removed from the electronic device mounting base 600.

Specifically, the top of the electronic display recording device 700 is provided with a display screen 710 and a radio frequency sensor 720, the bottom of the electronic display recording device 700 is provided with a second power contact block 730, the bottom of the electronic display recording device 700 is provided with a locking groove 740, the electronic display recording device 700 is internally provided with a single chip microcomputer 750, a wireless communication transmission and alarm module 760, a storage module 770 and a button battery 780, the electronic display recording device 700 is provided with a switch button 790, the switch button 790 is used for controlling the on-off of the electronic display recording device 700, the pressure sensor 510 transmits the detected data to the electronic device mounting base 600 through a connecting line, and transmits the data to the electronic display recording device 700 through the contact between the first power contact block 630 on the electronic device mounting base 600 and the second power contact block 730 on the electronic display recording device 700, and show through display screen 710, indicate medical personnel adjustment elasticity, if take place that bandage 100 ties up the not firm condition of tie up, pressure sensor 510 monitors the oppression power and is too light, can carry out remote alarm through wireless communication transmission and alarm module 760, indicate medical personnel to handle before, medical personnel uses the terminal tee bend of thrombolytic catheter and sheath pipe to carry out the water conservancy diversion and when dosing, need touch radio frequency inductor 720 through the radio frequency card of attached for medical personnel's information is saved into storage module 770, and transmit to the high in the clouds through wireless communication transmission and alarm module 760, clear responsibility.

Specifically, the top of the upper fixing box body 420 is provided with two identification blocks 422 above the catheter tail end through hole 430 and the sheath through hole 440, and the color of each identification block 422 is different to help distinguish the catheter and the sheath.

The working principle and the using process of the invention are as follows: before the thrombolysis catheter is indwelling, the thrombolysis catheter is arranged and fixed through the catheter clamp 320 with elasticity on the thrombolysis catheter bundling device 300, the tail end of the thrombolysis catheter is aligned with the catheter outlet 333, the indwelling fixed end of the thrombolysis catheter is aligned with the catheter inlet 332, then the transparent protective cover 330 is rotated, the transparent protective cover 330 is closed, and the transparent protective cover 330 and the fixing plate 310 are locked through the matching of the first buckle 341 and the first buckle seat 342, the tail end of the thrombolysis catheter and the thrombolysis sheath catheter pass through the catheter tail end passing port 430 and the sheath tube passing port 440 respectively, and are fixed with the catheter tail end fixing seat 450 and the sheath tube fixing seat 460 respectively through the catheter tail end fixing seat 450 and the sheath tube fixing seat 460, then the upper fixing box 420 is closed, and the upper fixing box 420 and the lower fixing box 410 are locked through the second buckle 421 and the second buckle seat 411, when the indwelling needle is to be placed and fixed, the bandage 100 is placed at the puncture site of the lower limb of the patient, the left fixing band 210 and the right fixing band 220 are wound below the leg of the patient, the right fixing band 220 passes through the fixing ring 211 on the left fixing band 210 and is fixed by the magic tape 221 after being tightened, the pressure sensor 510 detects the compression force of the bandage 100 on the leg of the patient, the pressure sensor 510 transmits the detection data to the electronic device mounting seat 600 through the connecting line and contacts with the second power contact block 730 on the electronic display recording device 700 through the first power contact block 630 on the electronic device mounting seat 600 to transmit the data to the electronic display recording device 700 and displays the data through the display screen 710 to prompt the medical staff to adjust the tightness, after the bandage 100 is fixed, the medical staff puts the indwelling needle into the puncture site and fixes the needle through the adhesive tape, during the indwelling period, monitoring data of the pressure sensor 510 is transmitted to a mobile terminal of a medical staff through the wireless communication transmission and alarm module 760, if the binding band 100 is not firmly bound, the pressure sensor 510 monitors that the pressure is too light, remote alarm can be performed through the wireless communication transmission and alarm module 760 to prompt the medical staff to perform treatment before, when the medical staff conducts diversion and administration by using a tee joint between the tail end of the thrombolytic catheter and the tail end of the sheath catheter, the radio frequency sensor 720 is touched through an attached radio frequency card, so that the medical staff information is stored in the storage module 770 and transmitted to the cloud through the wireless communication transmission and alarm module 760, responsibility is clear, when the tee joint is used, the catheter and the sheath can be identified through the identification block 422 on the port 430 and the sheath passage port 440 through the tail end of the catheter, selection errors are prevented, when the electronic device mounting seat 600 needs to be replaced and maintained, the locking between the elastic latch 640 and the locking groove 740 can be released by pulling the elastic latch 640, and the electronic display recording device 700 can be slid and taken off from the electronic device mounting base 600.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a lower limbs venipuncture integration fixing device which characterized in that: comprises a binding belt (100), the left side of the binding belt (100) is fixedly connected with three left fixing belts (210), the right side of the binding band (100) is fixedly connected with three right fixing bands (220), the tail end of the left fixing band (210) is provided with a fixing ring (211), a magic tape (221) is arranged on the right fixing strap (220), a thrombolytic catheter bundling device (300) is fixedly arranged at the top of the binding strap (100) through a button nail, the top of the binding band (100) is fixedly provided with a catheter sheath fixing device (400) through a nail buckle, the bottom of the bandage (100) is sewed with a pressure sensor containing layer (500), the pressure sensor accommodating layer (500) is internally provided with a pressure sensor (510), an electronic device mounting seat (600) is mounted at the top of the binding band (100), and an electronic display recording device (700) is mounted on the electronic device mounting seat (600).

2. The integrated lower limb venipuncture fixing device of claim 1, wherein: the thrombolytic catheter bundling device (300) comprises a fixing plate (310), catheter clamps (320) which are arranged in order are fixedly arranged at the top of the fixing plate (310), a transparent protective cover plate (330) is hinged to the left side of the fixing plate (310), a plurality of ventilation openings (331) penetrate through the top of the transparent protective cover plate (330) and the fixing plate (310), a first buckle (341) is fixedly mounted on the right side of the transparent protective cover plate (330), a first buckle seat (342) is integrally formed on the right side of the fixing plate (310), the transparent protective cover plate (330) and the fixing plate (310) are locked through the first buckle (341) and the first buckle seat (342), and a catheter introducing port (332) and a catheter guiding port (333) are formed in the rear side of the transparent protective cover plate (330).

3. The integrated lower limb venipuncture fixing device of claim 1, wherein: the catheter sheath fixing device (400) comprises a lower fixing box body (410) and an upper fixing box body (420), the upper fixed box body (420) and the lower fixed box body (410) are hinged through a hinge, the top of the lower fixed box body (410) and the bottom of the upper fixed box body (420) are provided with a catheter tail end passing port (430) and a sheath tube passing port (440), a catheter end fixing seat (450) and a sheath tube fixing seat (460) are integrally formed between the inner top wall of the upper fixing box body (420) and the inner bottom wall of the lower fixing box body (410), a second hasp (421) is fixedly arranged at the front side of the upper fixed box body (420), a second buckle seat (411) is fixedly arranged at the front side of the lower fixed box body (410), the upper fixing box body (420) and the lower fixing box body (410) are locked through the second buckle (421) and the second buckle seat (411).

4. The integrated lower limb venipuncture fixing device of claim 1, wherein: the left side and the right side of electron device mount pad (600) are integrated into one piece's limiting plate (610), the shaping has spacing arch (620) on limiting plate (610), the top of electron device mount pad (600) is equipped with first power contact piece (630), still elastic hasp (640) of integrated into one piece on electron device mount pad (600), electron device mount pad (600) are through connecting wire and pressure sensor (510) electric connection.

5. The integrated lower limb venipuncture fixing device of claim 1, wherein: display screen (710) and radio frequency inductor (720) are installed at the top of electronic display recorder (700), second power contact piece (730) are installed to the bottom of electronic display recorder (700), locking groove (740) have been opened to the bottom of electronic display recorder (700), the internally mounted of electronic display recorder (700) has singlechip (750), wireless communication transmission and alarm module (760), storage module (770) and button cell (780), install shift knob (790) on electronic display recorder (700).

6. The integrated lower limb venipuncture fixation device of claim 3, wherein: an identification block (422) is arranged on the top of the upper fixed box body (420) above the tail end passing port (430) of the catheter and the sheath passing port (440).

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