CN219284335U

CN219284335U - Device for detecting guide wire delivery speed and guide wire delivery resistance

Info

Publication number: CN219284335U
Application number: CN202222760105.XU
Authority: CN
Inventors: 王杨; 唐伟; 赵春莹
Original assignee: Weiya Medical Technology Suzhou Co ltd
Current assignee: Weiya Medical Technology Suzhou Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-06-30
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a device for detecting a guide wire delivery speed and a guide wire delivery resistance, which comprises a main body, a speed-force transmission assembly, a rotating speed sensor and a force sensor. The main body comprises a force sensor bracket and a supporting seat which are fixedly connected, and the force sensor is arranged on the force sensor bracket. The speed-force transmission component is arranged on the supporting seat in a linear movable manner and comprises a roller seat, a roller shaft and a force transmission piece, wherein the roller is fixed on the roller shaft, the roller shaft is rotatably arranged at one end of the roller seat, the force transmission piece is fixed at the other end of the roller seat, and the force transmission piece is used for transmitting the force born by the roller to the force sensor; the rotation speed sensor detects the rotation speed of the rotary output element; the supporting seat is provided with a guide wire passage; during use, the roller is abutted against one side of the guide wire, so that the guide wire is locally bent and kept in a bent state, the other side of the guide wire is supported on the guide wire supporting part, and the roller rotates under the drive of the guide wire and bears the force transmitted to the bent part.

Description

Device for detecting guide wire delivery speed and guide wire delivery resistance

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a device for detecting a guide wire delivery speed and guide wire delivery resistance.

Background

Minimally invasive vascular intervention is a basic means for diagnosing and treating cardiovascular and cerebrovascular diseases, and most of vascular lesion diagnosis and vascular reconstruction operations carried out at present are carried out by the aid of the technology. The operation of a guidewire-catheter is central to minimally invasive vascular interventional procedures, which determine the quality of the procedure. Currently, interventional physicians manually perform the positioning of a guidewire-catheter within a patient's blood vessel by means of digital silhouette angiography imaging technique (DSA). Conventional passive guidewires, guide catheters, balloon catheters are basic instruments used in surgery.

During the operation, the doctor performs vascular puncture in the femoral artery or radial artery and leaves a vascular sheath as an inlet for the catheter to enter the blood vessel. The catheter is passed through the vascular sheath into the vessel in the patient, and the guidewire is passed from the passageway inside the catheter into the vessel. Control of the catheter, guidewire delivery, retraction, and rotation is typically accomplished by the interventional physician with his or her assistant two and four hands. During the guidewire delivery process, the physician can determine guidewire withdrawal, delivery and rotation by sensing the amount of resistance of the guidewire by hand.

At present, the use of a robot device for positioning a guide wire (a catheter or other instruments, hereinafter the same) has appeared on the market, which is beneficial to improving the precision and stability of the positioning operation, liberating medical staff from radiation, and avoiding additional injury of the medical staff caused by wearing thick and heavy lead clothing. To realize the motion control of the guide wire, the robot device firstly needs to realize the nondestructive clamping of the guide wire, and is difficult to compare with human body perception in the aspect of sensing the motion state of the guide wire. The traditional guide wire delivery speed and guide wire delivery resistance sensing device and the guide wire delivery speed and guide wire delivery resistance sensing method have the problems that the guide wire delivery speed and the guide wire delivery resistance are inaccurate in sensing, and the guide wire is extruded to damage the guide wire, and the device is complex in structure and high in cost.

Accordingly, there is a need in the art for a guidewire delivery speed and guidewire delivery resistance sensing device and a guidewire delivery speed and guidewire delivery resistance sensing method that further improve the structural, perceived accuracy.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and aims to provide a method for detecting the delivery speed and the delivery resistance of a guide wire, which has simple and compact structure and few influencing factors, thereby improving the detection precision of the speed and the force.

To achieve the above object, the present utility model provides a device for detecting a guidewire delivery speed and a guidewire delivery resistance, the device comprising:

a main body;

a speed-force transmission assembly;

a rotation speed sensor; and

a force sensor;

the main body comprises a force sensor bracket and a supporting seat, the force sensor bracket is fixedly connected with the supporting seat, and the force sensor is arranged on the force sensor bracket;

the speed-force transmission assembly is arranged on the supporting seat in a linear movable manner through a guide device and comprises a roller seat, a roller shaft and a force transmission piece, wherein the roller is fixedly arranged on the roller shaft, the roller shaft is rotatably arranged at one end of the roller seat, the force transmission piece is fixedly arranged at the opposite end of the roller seat, the roller is used for contacting with a guide wire and rotating under the driving of the guide wire, and the force transmission piece is connected with the force sensor and used for transmitting the force born by the roller to the force sensor;

The rotational speed sensor is configured to detect a rotational speed of a rotational output member, the rotational output member including one of:

the roller shaft;

a rotating element mounted on the roller shaft for rotation in synchronization with the roller shaft;

a rotation shaft connected to the roller shaft via a transmission mechanism;

a rotating element mounted on a rotating shaft connected to the roller shaft via a transmission mechanism and rotating in synchronization with the rotating shaft;

a guide wire passage penetrating through the support seat is formed in the support seat, the guide wire passage is provided with a guide wire supporting part, the guide wire supporting part and the roller are positioned at two opposite sides of a guide wire passing through the guide wire passage in use, and the guide wire supporting part is arranged in such a way that the guide wire can be locally bent under the action of the roller; during use of the device for detecting the wire delivery speed and the wire delivery resistance, the roller abuts against one side of the wire passing through the wire passage to locally bend the wire and keep the wire in a bent state, while the other side of the wire is supported on the wire support, and the roller can rotate under the drive of the wire and bear the force transmitted to the bent position during the wire delivery.

By adopting the technical scheme of the utility model, the device has the advantages of simple and compact structure, low manufacturing cost and few influencing factors for detecting the delivery speed and the delivery resistance of the guide wire, thereby greatly improving the detection precision of the delivery speed and the delivery resistance of the guide wire. Moreover, according to the technical scheme of the utility model, the delivery speed and the delivery resistance of the guide wire in the delivery process can be accurately fed back in real time, so that the accurate control of the delivery of the guide wire is realized.

Drawings

The utility model will be described in further detail with reference to the drawings and examples, in which

FIG. 1 is a perspective view illustrating the general structure of a speed-force sensing device according to a first embodiment of the present utility model;

fig. 2 is a perspective view illustrating an actual use state of the speed-force sensing device according to the first embodiment of the present utility model;

FIG. 3 is a perspective view of a speed-force transmission assembly and a speed detection assembly of the speed-force sensing device of the first embodiment;

FIG. 4 is an exploded perspective view of the speed-force transmission assembly and the speed detection assembly of the speed-force sensing device of the first embodiment;

FIG. 5A is a cutaway perspective view of the speed-force sensing device of the first embodiment;

FIG. 5B is a cutaway perspective view of the speed-force sensing device of the first embodiment with the speed-force transfer assembly, the speed detection assembly, the force sensor bracket, and the force sensor removed;

FIG. 6A is a perspective view of the upper end shield;

FIG. 6B is a perspective view of the upper end shield from the other side;

FIG. 7 is a perspective view of the lower end shield;

FIG. 8 is a perspective view of the bottom box;

FIG. 9 is a partial cross-sectional view illustrating a structurally symmetrical guidewire support;

FIG. 10 is a partial cross-sectional view illustrating a structurally asymmetric guidewire support;

FIG. 11 illustrates a modified embodiment of a roller;

FIG. 12A illustrates a modified embodiment of a guidewire support;

FIG. 12B illustrates another modified embodiment of a guidewire support;

FIG. 13 is a perspective view of a speed-force sensing device according to a second embodiment of the present utility model;

FIG. 14 is a perspective view of a speed-force sensing device according to a second embodiment of the present utility model, with the bottom box removed;

FIG. 15 is an exploded perspective view of a speed-force transfer assembly, a speed detection assembly, and an auxiliary speed transfer assembly of the speed-force sensing device of the second embodiment;

FIG. 16 is a perspective view of a speed-force transfer assembly, a speed detection assembly, and an auxiliary speed transfer assembly of the speed-force sensing device of the second embodiment;

FIG. 17 is a perspective view of a speed-force sensing device according to a third embodiment of the present utility model;

FIG. 18 is a cutaway perspective view of a speed-force sensing device according to a third embodiment of the utility model;

FIG. 19 is a perspective view of a force transfer member of the speed-force sensing device of the third embodiment;

FIG. 20 illustrates a use state of the speed-force sensing device of the third embodiment of the present utility model;

FIG. 21 is a cut-away perspective view of a speed-force sensing device of a third embodiment of the utility model, illustrating another example of the mounting of a speed-force transfer assembly on a support base;

FIG. 22 is a cut-away perspective view of a speed-force sensing device of a third embodiment of the present utility model, illustrating yet another example of the mounting of a speed-force transfer assembly on a support base;

FIG. 23 is a perspective view illustrating a speed-force sensing device according to a fourth embodiment of the present utility model; and

fig. 24 is a perspective view of a fourth embodiment of a speed-force sensing device with the bottom box removed.

Detailed Description

The speed-force sensing device and the speed-force sensing method of the present utility model will be described in detail. It should be noted herein that the embodiments of the present utility model are merely illustrative, which are merely illustrative of the principles of the present utility model and not in limitation thereof.

For convenience of description, terms such as up, down, front, rear, left, right, and the like are used in the specification, and these directional terms correspond to the orientations depicted in the figures, but do not necessarily correspond to the directions in which they are actually used.

Referring first to fig. 1 and 2, there is illustrated in perspective view the general structure of a speed-force sensing device according to a first embodiment of the present utility model, wherein fig. 2 illustrates the actual use state of the speed-force sensing device of the present utility model. As shown in fig. 1 and 2, the speed-force sensing device 1 of the first embodiment includes a speed-force transmission assembly 2, a speed detection assembly 3 (see fig. 4), a force sensor 4, and a main body structure 5.

The main structure 5 comprises a supporting seat 6 and a force sensor bracket 7, the force sensor 4 is fixedly arranged on the force sensor bracket 7 and is supported by the force sensor bracket 7, and the force sensor bracket 7 is arranged on the supporting seat 6. The support base 6 comprises an upper end baffle 8, a lower end baffle 9 and a bottom box 10, the speed-force transmission assembly 2 being mounted on the support base 6 in a linearly movable manner by means of guide means.

The speed-force transmission assembly 2 comprises a roller seat 11, a roller 12, a roller shaft 13 and a screw 14, wherein the roller 12 is fixedly arranged on the roller shaft 13. In the use state, the roller 12 is in contact with the guide wire 15, so as to rotate under the drive of the guide wire and drive the roller shaft 13 serving as a rotary output element to rotate together, and the roller shaft 13 is arranged in association with a rotation speed sensor of the speed detection assembly 3, and the rotation speed sensor is used for detecting the rotation speed of the roller shaft 13. When resistance is encountered during guidewire delivery, the resistance is transmitted through the guidewire to the roller 13, the roller 13 transmits the force to the screw 14 and via the screw 14 to the force sensor 4, the magnitude of the force being measured by the force sensor 4.

Referring next to fig. 3 and 4, wherein fig. 3 is a perspective view of the speed-force transmission assembly 2 and the speed detection assembly 3, and fig. 4 is an exploded perspective view of the speed-force transmission assembly 2 and the speed detection assembly 3. As shown in fig. 3 and 4, the speed-force transmission assembly 2 includes a roller housing 11 including a roller housing body 16, an inner end roller shutter 17, and an outer end roller shutter 18, a roller 12, a roller shaft 13, and a screw 14. The roller seat body 16 has a screw hole 19 formed therein, and in an assembled state, the screw 14 is fitted into the screw hole. Guide protrusions 20 serving as sliders extending in the up-down direction are provided on both side surfaces of the roller seat body 16 opposite to each other to guide the linear movement of the speed-force transmission assembly in cooperation with guide grooves serving as slide rails provided on the support seat as described below.

The roller 12 is fixedly mounted on the roller shaft 13 so that both can rotate together. The roller shaft 13 extends from both sides of the roller 12, and the inner end roller baffle 17 and the outer end roller baffle 18 are respectively mounted on the roller shaft 13 through bearings 21. The roller seat main body 16 is provided with a screw hole 21 and positioning rods 22 which are positioned at two sides of the screw hole 21 and respectively extend out of two sides of the roller seat main body; screw holes 23 and positioning holes 24 positioned on two sides of the screw holes are formed on the inner end roller baffle 17; screw holes 25 and positioning holes 26 on both sides of the screw holes are formed in the outer roller shutter 18.

The speed detection assembly 3 comprises a rotational speed sensor comprising a magnetic encoder 27 and a magnet 28; the speed detection assembly 3 further comprises a magnetic encoder housing comprising a magnetic encoder housing body 29 and a magnetic encoder cover 30. The magnetic encoder 27 is provided with an electric wire 31; the magnet 28 is fixedly mounted in a mounting hole 32 (see fig. 5A) formed in an end portion of the roller shaft 13. The magnetic encoder seat main body 29 is L-shaped, a mounting hole 33 for forming a part of the mounting space of the magnetic encoder 27 is formed on the vertical plate part, and screw holes 34 are formed on two sides of the mounting hole 33; the horizontal plate portion has a through hole 35 formed therein, from which the electric wire 31 of the magnetic encoder extends; the end surface of the horizontal plate portion facing the speed-force transmission assembly 2 is formed with screw holes 36 and positioning holes 37 located on both sides of the screw holes.

The magnetic encoder cover 30 is recessed toward one side of the magnetic encoder housing main body 29 so as to constitute an installation space of the magnetic encoder 27 together with the installation hole 33 of the magnetic encoder housing main body 29. The magnetic encoder cover 30 is formed with a through hole 38 through which the magnetic encoder 27 is exposed (see fig. 5A); screw holes 39 are formed in the magnetic encoder cover 30 on both sides of the through hole 38.

Referring to fig. 3, 4 and 5A, the assembly of the speed-force transmission assembly 2 and the speed detection assembly 3 is described. When the speed detecting assembly 3 is assembled, the electric wires 31 of the magnetic encoder 27 are led out from the through holes 35 on the magnetic encoder housing main body 29, the magnetic encoder 27 is placed in the installation space defined between the magnetic encoder housing main body 29 and the magnetic encoder cover 30, and the magnetic encoder cover 30 and the magnetic encoder housing main body 29 are fixed to each other by screwing the screws passing through the screw holes 39 on the magnetic encoder cover and the screw holes 34 on the magnetic encoder housing main body 29.

When the speed-force transmission assembly 1 is assembled, the magnet 28 is mounted in the mounting hole 32 at the end of the roller shaft 13; and the inner end roller baffle 17 and the outer end roller baffle 18 are respectively arranged on the roller shaft 13 through bearings 21, and meanwhile, positioning rods 22 positioned on two sides of the roller seat main body 16 are respectively inserted into

positioning holes

24 and 26 on the inner end roller baffle 17 and the outer end roller baffle 18.

Then, the positioning rod 22 on the roller seat main body 16 at one side of the magnetic encoder 27 is inserted into the positioning hole 37 on the magnetic encoder seat main body 29; then, the screws 40 are respectively passed through the screw holes 25, 21, 23 and screwed into the screw holes 36 on the magnetic encoder seat body 29, thereby completing the assembly of the speed-force transmission assembly 2 and the speed detection assembly 3.

The screw 14 serving as a dowel bar is fixedly installed on the top of the roller seat, and in this embodiment, the screw 14 functions to transmit the force borne by the roller 12, so that its specific structural form and the fixing manner with the roller seat are not limited to the illustrated specific example, but may take various forms known to those skilled in the art.

As shown in fig. 1, the support base 6 includes an upper end baffle 8, a lower end baffle 9, and a bottom case 10, the lower end baffle 9 being disposed between the upper end baffle 8 and the bottom case 10. Referring to fig. 1, 5A and 6A, the upper end baffle 8 includes an extension 41 extending rightward for mounting the force sensor bracket 7. As shown in fig. 5A, the force sensor bracket 7 is in an L-shaped plate shape, and includes a connecting plate portion 42 extending horizontally and a fixing plate portion 43 connected to the horizontal connecting plate portion and extending in the vertical direction, an end portion of the vertical fixing plate portion facing away from the horizontal connecting plate portion being provided with a mounting portion 44 extending in the front-rear direction, and a screw hole being formed in the mounting portion 44; correspondingly, the end of the force sensor 4 connected to the force sensor support 7 is formed with a threaded hole, whereby the force sensor 4 can be fixedly mounted on the force sensor support 7 by means of screws 45.

With continued reference to fig. 5A, the horizontal web portion 42 of the force sensor bracket 7 is fixedly connected with the extension portion 41 of the upper end baffle 8. As shown in fig. 6A, screw holes 46 are formed on the extension portion 41 of the upper end baffle 8, and screw holes 47 (see fig. 5A) are formed on the horizontal connection plate portion 42 of the force sensor bracket 7, whereby the force sensor bracket 7 and the upper end baffle 8 can be fixed to each other by screws 48. As a preferred solution, the fixed position of the force sensor support 7 on the upper end baffle 8 is adjustable in a direction perpendicular to the direction of linear movement of the speed-force transmission assembly (left-right direction in fig. 5A); for this purpose, the screw holes 47 on the horizontal connecting plate portion 42 of the force sensor bracket 7 are formed as waist-shaped holes extending in a direction perpendicular to the linear movement direction of the speed-force transmission assembly. Further, as a preferable option, in order to facilitate adjustment of the position of the force sensor bracket 7 after loosening the screw 48, as shown in fig. 5A, waist-shaped guide holes 49 extending in a direction perpendicular to the linear movement direction of the speed-force transmission assembly are formed on the upper and lower sides of the screw hole of the horizontal connection plate portion 42 of the force sensor bracket 7, respectively; correspondingly, two guide bars 50 are arranged at corresponding positions on the extension of the upper end baffle 8. In the assembled state, the two guide rods 50 are respectively located in the waist-shaped guide holes 49, play a supporting role on the force sensor bracket 7, and guide the left-right movement of the force sensor bracket 7. Referring to fig. 6A, the extension 41 of the upper end baffle 8 is formed with a mounting hole 51, and two guide rods 50 are fixedly mounted in the mounting holes 51, respectively.

The structure of the support base 6 is described below with reference to fig. 1, 5A to 8, wherein fig. 5A is a cutaway perspective view of the speed-force sensing device of the first embodiment; FIG. 5B is a cutaway perspective view of the speed-force sensing device with the speed-force transfer assembly 2, the speed detection assembly 3, the force sensor, and the force sensor bracket 7 removed; FIG. 6A is a perspective view of the upper end shield; FIG. 6B is a perspective view of the upper end shield from the other side; FIG. 7 is a perspective view of the lower end baffle; and figure 8 is a perspective view of the bottom box.

As shown in fig. 1, the support base 6 includes an upper end baffle 8, a lower end baffle 9, and a bottom case 10, the lower end baffle 9 being installed between the upper end baffle 8 and the bottom case 10, together defining an installation space of the speed-force transmission assembly 2 and the speed detection assembly 3, the lower end baffle 9 being disposed to be relatively dislocated with respect to the upper end baffle 8 and the bottom case 10 (see fig. 5A and 5B).

As shown in fig. 6A and 6B, a through hole 52 is formed in the middle of the upper baffle plate 8, and includes a rectangular hole 53 located above and a groove hole 54 located below, the rectangular hole 53 and the groove hole 54 being penetrated in the up-down direction; the upper portion of the upper end baffle 8 is further formed with a circular hole 55 extending in the up-down direction, the circular hole 55 penetrating the rectangular hole and extending through the upper surface of the upper end baffle 8, and the screw 14 of the speed-force transmission assembly 2 extending through the circular hole 55 and being in clearance fit with the circular hole.

On each of the left and right sides shown in the drawing of the through-hole 52, the upper end baffle 8 is formed with a screw hole 56 formed through the upper end baffle 8, respectively. Preferably, screw hole 56 is a stepped screw hole. In the assembled state, as shown in fig. 1 and 5A, the screw hole 56 is used to fit the set screw 57, and the screw head is accommodated in the large hole of the stepped screw hole 56.

With continued reference to fig. 6A and 6B, the right side wall of the illustrated rectangular aperture 53 is formed with a baffle 58 in the form of a step on the side facing the lower baffle 9, including a first baffle portion 59 and a second baffle portion 60, with a step 61 formed therebetween, and a threaded aperture 62 formed in the second baffle portion 60. The left side wall of the rectangular hole is also provided with a baffle plate, and the structure is symmetrical to that of the right side wall baffle plate, and the description thereof is omitted.

As shown in fig. 5A and 5B, the support base 6 further includes an assembly baffle 63 in the form of a rectangular block, on which screw holes 64 corresponding to the screw holes 62 on the second baffle portion 60 are formed, whereby the assembly baffle 63 can be fixed to the upper end baffle 8 with screws 65 and spaced apart from the corresponding first baffle portion 59. Thus, a guide groove 66 is defined between the assembly shutter 63 and the first shutter portion 59, and the assembly shutter 63 and the first shutter portion 59 form a slide rail for guiding the linear movement of the speed-force transmission assembly 2 and the speed detection assembly 3 with respect to the support base in cooperation with the guide protrusions 20 serving as sliders on the left and right sides of the roller base 11 (see fig. 5A). In order to reduce friction between the slider and the slide rail, the slider and the slide rail are preferably smoothed, such as mirror-finished.

Fig. 7 illustrates the lower end baffle 9 in cooperation with the upper end baffle 8. As shown in fig. 7, a through-hole 67 is formed in the middle of the lower end baffle 9, and includes a rectangular hole 68 located above and a groove-shaped hole 69 located below, the rectangular hole 68 and the groove-shaped hole 69 penetrating in the up-down direction, and the groove-shaped hole 69 corresponding to the groove-shaped hole 54 of the upper end baffle 8. On each of the left and right sides of the through-hole 67, the lower end baffle 9 is formed with two waist-shaped

holes

70 and 71, respectively, the waist-shaped holes 70 being used to pass through the guide rods 72 (see fig. 8), and the waist-shaped holes 71 being used to pass through the fixing screws 57 (see fig. 1 and 5A).

The lower end of the lower end baffle 9 is provided with a two-layered stepped portion 73 extending from the lower end baffle toward the upper end baffle side, including a first stepped portion 74 located on the outside and a second stepped portion 75 located on the inside, the first stepped portion 74 having a first mounting surface 76 and a first surface 77, and the second stepped portion 75 having a third mounting surface 78 and a third surface 79. The inner side of the middle portion of the first mounting surface 76 of the first step portion 74 is formed with a through hole 80 penetrating up and down, or is formed with an arc-shaped concave recess for receiving the lower portion of the roller 12 of the speed-force transmission assembly in the assembled state of the speed-force sensing device, while the guide wire is positioned under the roller 12, and the outer circumference of the lower portion of the roller 12 is kept in contact with the guide wire and locally bends the guide wire. As a preferred option, as shown in fig. 7, the first mounting surface 76 of the first step 74 is curved with a concave shape in the middle so that the guide wire transitions more gently to the lower outer periphery of the roller 12. Preferably, the intersection of the through hole 80 or the recess with the first mounting surface of the first step is smoothly transitioned, thereby deflecting the guidewire as smoothly as possible to avoid guidewire breakage.

As shown in fig. 6B, the upper end baffle 8 is provided with a third step 81 corresponding to the two-layered step 73 of the lower end baffle 9, thereby forming a second mounting surface 82, a fourth mounting surface 83, and a second surface 84. Wherein the second mounting surface 82 of the third step portion 81 of the upper end baffle plate 8 is adapted in shape and size in the front-rear direction to the first mounting surface 76 of the first step portion 74 of the lower end baffle plate 9; the fourth mounting surface 83 of the third step 81 of the upper end baffle plate 8 is adapted in shape and size in the front-rear direction to the third mounting surface 78 of the second step 75 of the lower end baffle plate 9.

Thus, when the upper end baffle 8 and the lower end baffle 9 are assembled, the second mounting surface 82 of the third step portion 81 of the upper end baffle 8 and the first mounting surface 76 of the first step portion 74 of the lower end baffle 9 are bonded to each other, and the fourth mounting surface 83 of the third step portion 81 of the upper end baffle 8 and the third mounting surface 78 of the second step portion 75 of the lower end baffle 9 are bonded to each other; at the same time, the second surface 84 of the third step 81 of the upper end baffle 8 and the third surface 79 of the second step 75 of the lower end baffle 9 are bonded to each other, and the plate surface 85 of the upper end baffle 8 and the plate surface 86 of the lower end baffle 9 are bonded to each other.

As shown in fig. 6A and 6B, below the groove-shaped hole 54, a cutout portion 87 is formed on the upper end baffle plate 8, and the cutout portion 87 is symmetrically disposed with respect to the groove-shaped hole 54, while being symmetrically disposed with respect to the through hole 80 (see fig. 7) on the first mounting surface 76 of the first step portion 74 of the lower end baffle plate 9. The notch 87 communicates with the groove hole 54, and in the assembled state of the upper end baffle plate 8 and the lower end baffle plate 9, the notch 87 also communicates with the through hole 80 in the first mounting surface 76 of the first step portion 74 of the lower end baffle plate 9; thereby, an arrangement space for the rollers 12 of the speed-force transmission assembly 1 is formed.

In order to form a guide wire passageway through which the guide wire 15 passes, as shown in fig. 6A and 6B, a fourth step 88 is formed on the upper end baffle plate 8, the fourth step 88 being formed at the intersection of the second surface 84 and the second mounting surface 82 and including a step surface 89, the step surface 89 being adapted in shape to the first mounting surface 76 of the first step 74 of the lower end baffle plate 9, thereby forming a guide wire passageway 90 (see fig. 1) having a substantially uniform cross section after the upper end baffle plate 8 and the lower end baffle plate 9 are assembled.

Referring to fig. 1, 6A, 6B and 7, the bottom of the guide wire aisle is constituted by the first mounting surface 76 of the lower end baffle, and portions located on both sides of the through hole 80 on the first mounting surface 76 serve as guide wire supporting portions. During use of the speed-force sensing device, the guidewire passes through the guidewire passageway and the roller 12 abuts the guidewire to create localized bending of the guidewire and support the portion of the guidewire adjacent the bend of the guidewire on the guidewire support and maintain the guidewire in a bent condition. In order to reduce friction between the guide wire and the guide wire channel or the guide wire support, the guide wire channel or the guide wire support is preferably smooth, such as mirror-finished.

With continued reference to fig. 6B, outside of the screw hole 56 of the upper end baffle 8, the upper end baffle 8 is formed with a blind hole 91 in which the end of the guide rod 72 fits.

Referring to fig. 8, fig. 8 is a perspective view of the bottom case 8. As shown in fig. 8, the bottom case 8 has a box shape including a rectangular main body portion 300 and an extension portion 301, and a notch 92 for passing the electric wire 31 of the magnetic encoder is formed on a side wall of one end. Two bosses 93 are provided on both sides of the bottom wall of the rectangular main body portion 300, and screw holes 94 for connection with the ends of the screws 57 (see fig. 5A) and guide rod fixing holes 95 for fixing the guide rods 72 are formed on the bosses 93, respectively, in the inner side of the screw holes 94 and in the outer side of the screw holes. In the assembled state, the through-hole 52 of the upper end baffle 8, the through-hole 67 of the lower end baffle 9, and the inner space of the bottom case 8 define an installation space of the speed-force transmission assembly 2.

Referring to fig. 5A and 5B, in assembling, first, the speed-force transmission assembly 2 with the screw 14 removed is fitted to the upper end shutter 8 as the mounting body of the speed-force transmission assembly 2 together with the speed detection assembly 3 from the through-hole 52 of the upper end shutter 8, and the guide projection 20 of the roller seat is brought into abutment with the first shutter portion 59 of the upper end shutter 8; the assembly block 63 is then installed and the assembly block 63 is secured to the upper block 8 by screws 65. Then, when the upper end baffle 8, to which the speed-force transmission unit 2 and the speed detection unit 3 are assembled, is assembled with the lower end baffle 9 and the bottom case 8, the second mounting surface 82, the fourth mounting surface 83, and the second surface 84 of the third step 81 of the upper end baffle 8 are respectively bonded to the first mounting surface 76, the third mounting surface 78, and the third surface 79 of the two-stage step 73 of the lower end baffle 9, and the plate surface 85 of the upper end baffle 8 is bonded to the plate surface 86 of the lower end baffle 9. Thereafter, the bottom case 10 to which the guide rod 72 is fixed is assembled with the upper and lower end baffles 8 and 9, the guide rod 72 is inserted into the waist-shaped hole 70 of the lower end baffle 9 and the blind hole 91 of the upper end baffle 8, respectively, and then the screw 57 is passed through the screw hole 56 of the upper end baffle 8, the waist-shaped hole 71 of the lower end baffle and screwed into the screw hole 94 of the bottom case 10, thereby assembling the upper end baffle 8, the lower end baffle 9 and the bottom case 10 together.

Next, as shown in fig. 5A, the force sensor bracket 7 is fixed to the upper end baffle 8 by screws 48. As described above, since the screw holes 47 in the horizontal connecting plate portion 42 of the force sensor bracket 7 are waist-shaped holes, the mounting position of the force sensor bracket 7 on the upper end baffle 8 can be adjusted in the left-right direction after the screws 48 are loosened.

Then, as shown in fig. 5A, the force sensor 4 is fixedly mounted on the force sensor bracket 7 by a screw 45. At the same time, the force sensor 4 is connected to the speed-force transmission assembly 2 by means of a screw 14. The screw 14 extends through a hole 96 formed in the force sensor 4, the lower end of which is screwed into a threaded hole 19 (see fig. 4) in the roller mount 11 of the speed-force transmission assembly 2, so as to be fixed with respect to the roller mount 11, and the screw 14 is fixed in position with respect to the force sensor 4 by

nuts

97 and 98, so that the assembly of the speed-force sensing device is completed. In actual use of the speed-force sensing device, the axial position of the screw 14 can be adjusted by the nuts 97 and 98 to adjust the force with which the roller 12 of the speed-force transmission assembly 2 abuts against the guide wire and/or the degree of local bending of the guide wire.

With continued reference to fig. 1 and 5A, in actual use of the speed-force sensing device, in order to dispose the guide wire 15 in the guide wire aisle, the screw 57 may be unscrewed, and then the lower end baffle 9 may be downwardly displaced with respect to the upper end baffle 8 and the bottom box 10 by the waist-shaped

holes

70 and 71 formed in the lower end baffle 9, thereby creating a guide wire installation gap 99 (see fig. 5A and 5B) between the second installation surface 82 of the third stepped portion 81 of the upper end baffle 8 and the first installation surface 76 of the first stepped portion 74 of the lower end baffle 9. In this case, the guide wire 15 may be mounted in place via the guide wire mounting gap 99. Thereafter, the lower end baffle 9 is moved upward relative to the upper end baffle 8 and the bottom case 10 until the second mounting surface 82 of the third step portion 81 of the upper end baffle 8 and the first mounting surface 76 of the first step portion 74 of the lower end baffle 9 come into contact with each other, and then the lower end baffle 9 is re-fixed to the upper end baffle 8 and the bottom case 10 with the screws 57.

In the above-described embodiment, as shown in fig. 7, the first mounting surface 76 of the first step portion 74 on the lower end baffle 9 is in a laterally symmetrical form with respect to the through hole 80, and accordingly, the formed guide wire passage is also in a laterally symmetrical form, and the guide wire supporting portions located on both sides of the through hole 80 on the first mounting surface are also in a laterally symmetrical form. With this configuration, the roller 12 is in contact with the guide wire symmetrically left and right when the speed-force sensing device is in actual use, as shown in fig. 9. However, the guide wire passageway may take other forms, such as a laterally asymmetrical form as shown in fig. 10, and in the case of fig. 10, the guide wire support portions on both sides of the through hole 80 take a laterally asymmetrical form, and accordingly the roller 12 is in laterally asymmetrical contact with the guide wire. The difference caused by the different guide wire support forms is the different points of stress of the roller 12.

The operation of the speed-force sensing device according to the first embodiment of the present utility model will be described below.

Before operation, the speed-force sensing device is fixedly arranged at a certain part of a guide wire walking path, and the guide wire is arranged in a guide wire passage of the speed-force sensing device, so that the guide wire is delivered and retracted through the guide wire passage of the speed-force sensing device. The roller 12 abuts against the guide wire and locally bends the guide wire, and the guide wire part adjacent to the bending part of the guide wire is supported on the guide wire supporting part, and the guide wire is kept in a bending state; nuts 97 and 98 may be used to adjust the axial position of the screw 14 fixedly attached to the roller mount, if desired, to thereby effect adjustment of the force with which the roller 12 of the speed-force transmission assembly 2 abuts against the guide wire and/or the degree of localized bending of the guide wire. During the operation to deliver the guidewire forward, the guidewire will drive the roller and thus the roller shaft, thereby rotating the magnet 28, and the magnetic encoder will detect/feedback the delivery rate of the guidewire. If the guide wire is blocked from advancing, on the one hand, the rotational speed of the roller 3 and the roller shaft 4, and thus of the magnet 28, will slow down or even stop rotating, while the speed of the guide wire fed back by the magnetic encoder will also slow down; on the other hand, the applied resistance force causes the guide wire to bend further or tends to bend further at the local bending portion, and the applied resistance force is transmitted to the roller 12 of the speed-force transmission unit 2, further to the screw 14 via the screw 14, to the force sensor 4, and the force sensor 4 measures the force. Since the guide wire is locally bent at the roller 12, the bent guide wire portion is most sensitive to the resistance force reflected when the guide wire is hindered from advancing, thereby accurately transmitting the resistance force to the speed-force transmission assembly and being detected by the force sensor. Delivery of the guidewire should be paused when the feedback guidewire speed decreases to a predetermined threshold and/or the detected force is greater than a predetermined threshold.

In a first embodiment of the described speed-force sensing device, the essential features thereof are that, on the one hand, the speed-force transmission assembly is provided with a roller and a roller shaft rotating together with the roller, the roller being in contact with and driven in rotation by the guide wire; a rotational speed sensor is arranged in association with the roller shaft for detecting the rotational speed of the roller shaft and thereby knowing/feeding back the delivery speed of the guide wire; on the other hand, the speed-force transmission assembly is movable linearly with respect to the support seat 6 and is provided at its stressed end with a roller 12 in contact with the guide wire, on which is provided a guide wire support (in the first embodiment, the guide wire support is in the form of a mounting surface 76 on the first step of the lower end baffle on either side of the through hole 80), the guide wire support and the roller being located, in use, on opposite sides of the guide wire, the guide wire support being arranged such that the guide wire can flex locally under the action of the roller; during use of the speed-force sensing device, the roller of the speed-force transmission assembly abuts against the advancing guide wire, causing localized bending of the guide wire and supporting the portion of the guide wire adjacent the bending portion of the guide wire on the support and maintaining the guide wire in a bent state, whereby a force will act on the roller as the guide wire delivery encounters resistance; meanwhile, the speed-force transmission assembly further comprises a force transmission end connected with the force sensor and used for transmitting the force acted on the roller by the guide wire to the force sensor and detecting the force by the force sensor.

Therefore, the technical scheme of the present utility model is not limited to the specific form described.

In the first embodiment described above, in order to facilitate the installation of the guide wire on the speed-force sensing device, the upper end baffle 8 and the lower end baffle 9 are arranged to be displaced relative to each other, but they may also be arranged so as not to be displaced relative to each other, and in actual use, the end of the guide wire is threaded from one end of the guide wire passageway 90 of the speed sensing device; alternatively, the guide wire may be attached by detaching the upper end baffle 8 and the lower end baffle 9.

In the first embodiment described above, as shown in fig. 6B and 7, the lower end baffle plate 9 is provided with the first step portion 74 and the second step portion 75, and the upper end baffle plate 8 is provided with the third step portion 81. As a modified embodiment, the lower end baffle 9 may be provided with only the first step portion 74 protruding toward the upper end baffle side, the first mounting surface 76 of the first step portion extending to the plate surface 86 of the lower end baffle 9, without the second step portion; and the upper end baffle plate 8 is not provided with the third step portion 81. In the assembled state, the second mounting surface 82 of the upper end baffle 8 and the first mounting surface 76 of the lower end baffle 9 are attached to each other, and the plate surface 85 of the upper end baffle 8 is attached to the plate surface 86 of the lower end baffle 9. With this configuration, the guidewire channel, which is positioned below and aligned with the roller of the speed-force transfer assembly, is formed by one of the following means:

1) The guide wire aisle is formed by encircling a groove formed on the second mounting surface of the upper end baffle and the first mounting surface of the lower end baffle, and a through hole, a notch or a concave part is formed on the first mounting surface at the position opposite to the roller;

2) The guide wire aisle is formed by encircling a groove formed on a first installation surface of the lower end baffle and a second installation surface of the upper end baffle, and a through hole or a notch or a concave part is formed at the position, opposite to the roller, of the bottom of the groove formed on the first installation surface;

3) The guide wire passageway is formed by encircling a groove formed in the second installation surface of the upper end baffle and a groove formed in the first installation surface of the lower end baffle, and a through hole, a notch or a concave part is formed in the bottom of the groove formed in the first installation surface at the position opposite to the roller.

Fig. 11 illustrates a modified embodiment of the roller, and the roller of fig. 11 is formed with flanges 100 on opposite sides of the surface thereof abutting the guide wire to prevent the guide wire from coming off the abutment surface of the roller.

As for the wire supporting portion, in the embodiment, the wire supporting portion is in the form of a plane or a curved surface and is provided on both sides of the roller in the direction of the wire travel path, but as a modified embodiment, the wire supporting portion in the form of a plane or a curved surface may be provided only on one side of the roller in the direction of the wire travel path. In addition, other forms of guidewire support may be used in addition to guidewire support in the form of a planar or curved surface. Fig. 12A and 12B illustrate other embodiments of a guide wire support, the guide wire support shown in fig. 12A comprising two guide wire support rollers or two guide wire support columns 111 symmetrically disposed with respect to the rollers in the direction of the guide wire travel path; the guide wire supporting portion shown in fig. 12B includes a guide wire supporting roller or a guide wire supporting column 112 disposed adjacent to the roller in the guide wire traveling path direction. The guide wire supporting portion illustrated in fig. 12A and 12B is not limited to a supporting roller or a supporting column which is specially used for providing the supporting function. For example, the present utility model may employ two or three speed-force sensing devices, where two speed-force sensing devices are respectively located on opposite sides of the guide wire and are sequentially disposed in a direction along the path of travel of the guide wire; in the case of three speed-force sensing devices, one speed-force sensing device in the middle is positioned on one side of the guide wire, and the other two speed-force sensing devices are positioned on the other side of the guide wire and are respectively arranged on the front side and the rear side of the speed-force sensing device in the middle along the traveling path direction of the guide wire. In the case of two or three speed-force sensing devices, the roller of one speed-force sensing device serves as a guide wire support for the other speed-force sensing device. Thus, the guidewire support illustrated in fig. 12A and 12B also covers the above-described situation.

A second embodiment of the speed-force sensing device of the present utility model is described below with reference to fig. 13-16.

In the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

Referring to fig. 13 and 14, fig. 13 is a perspective view of a speed-force sensing device of a second embodiment; fig. 14 is a perspective view of the speed-force sensing device of the second embodiment with the bottom box removed to show the structure of the speed detection assembly and the auxiliary speed transmission assembly. Similar to the first embodiment, the speed-force sensing device 201 of the second embodiment comprises a speed-force transmission assembly 202, a speed detection assembly 203 (see fig. 15), a force sensor 4, and a main structure 205, wherein the main structure 205 comprises a support base 206 and a force sensor bracket 7, and the support base 206 comprises an upper end baffle 8, a lower end baffle 9, and a bottom case 210. In the speed-force sensing device of the second embodiment, the upper and

lower end shields

8 and 9, the force sensor 4, the force sensor bracket 7, and the like of the support base 206 are substantially the same as the overall structures of the upper and lower end shields, the force sensor bracket, and the like of the first embodiment, and only the difference structures will be described below.

As shown in fig. 15 and 16, the speed-force transmission assembly 202 includes a roller mount 211 including a roller mount body 216, a roller shutter 217, and a roller shutter 218, a roller 212, a roller shaft 213, and a screw 214. The roller seat body 216 has a threaded hole (not shown) formed therein, into which one end of the screw 214 is fitted in an assembled state. Guide protrusions 220 serving as sliders extending in the left-right direction in the drawing are provided on both side surfaces of the roller seat body 216 opposite to each other to guide the linear movement of the speed-force transmission assembly in cooperation with guide grooves serving as slide rails provided on the support seat.

The roller 212 is fixedly mounted on the roller shaft 213 so that both can rotate together. The roller shaft 213 extends from both sides of the roller 212, and the roller shutter 217 and the roller shutter 218 are respectively mounted on the roller shaft 213 through bearings 221. The roller seat body 216 has screw holes (not shown) extending in the up-down direction, the roller shutter 217 has screw holes 223, and the roller shutter 218 has screw holes 225.

In assembling the speed-force transmission assembly 202, the roller shutter 217 and the roller shutter 218 are respectively mounted on the roller shaft 213 through bearings 221, and screws 240 are respectively passed through screw holes 225 on the roller shutter 218 and screw holes on the roller seat body 216 and screwed into screw holes 223 on the roller shutter 217, thereby completing the assembly of the speed-force transmission assembly.

The speed-force sensing device of the second embodiment further comprises an auxiliary speed transmission assembly 250, which auxiliary speed transmission assembly 250 is arranged between the speed-force transmission assembly 202 and the speed detection assembly 203.

Referring to fig. 15 and 16, the auxiliary speed transmission assembly 250 includes a driving bevel gear 251 as a first bevel gear fixedly connected with the roller shaft 213, a sliding bevel gear 252 as a second bevel gear in driving engagement with the driving bevel gear 251, a transmission shaft 253, and a coil spring 254 serving as a biasing spring. The drive shaft 253 is a stepped shaft comprising a solid shaft 255 on the side of the sliding bevel gear 252 and a hollow shaft 256 on the side facing away from the sliding bevel gear 252, the hollow shaft 256 having an outer diameter greater than the diameter of the solid shaft 255, thereby forming a step therebetween. The solid shaft 255 is formed with a hole for mounting the pin 257; sliding bevel gear 252 includes an integrally formed sleeve 258 with an elongated aperture 259 formed in sleeve 258.

In the assembled state of the drive shaft 253 and the sliding bevel gear 252, the sleeve 258 of the sliding bevel gear 252 is fitted over the solid shaft 255 of the drive shaft, the pin 257 is mounted on the solid shaft 255 in the elongate hole 259 of the sleeve 258, and the coil spring 254 is located between the step and the end of the sleeve 258, see fig. 16. Thereby, the movement of the sliding bevel gear 252 towards the driving bevel gear 251 is restricted by means of the pin 257, but the sliding bevel gear 252 is allowed to move away from the driving bevel gear 251, whereas the coil spring 254 applies a bias to the sliding bevel gear 252 to ensure reliable engagement of the sliding bevel gear 252 with the driving bevel gear 251.

With continued reference to fig. 15 and 16, a speed sensing assembly 203 is fixedly mounted to and supported by the support 260, the speed sensing assembly 203 including a rotatable shaft 261, a magnet mounted on the rotatable shaft, a magnetic encoder (not shown), and a housing 262 for mounting the foregoing components, the speed sensing assembly 203 also being referred to as a rotatable shaft magnetic encoder. The rotation shaft 261 is fixedly connected with the hollow shaft 256 of the transmission shaft 253 and is rotated by the driving of the transmission shaft 253.

As shown in fig. 13 and 14, the bottom case 210 of the support base 206 is a case for mounting the auxiliary speed transmission assembly 250, the speed detection assembly 203, the stand 260, etc., and has a hole formed therein for allowing the driving bevel gear 251 to pass through. In the assembled state of the speed-force sensing device, the upper end baffle 8 and the lower end baffle 9 may be fixed to the bottom case 210 by screw fixation 263.

The operation of the speed-force sensing device according to the second embodiment of the present utility model will be described below.

Before operation, the speed-force sensing device is fixedly arranged at a certain part of a guide wire walking path, and the guide wire is arranged in a guide wire passage of the speed-force sensing device, so that the guide wire is delivered and retracted through the guide wire passage of the speed-force sensing device. The roller 212 abuts against the guide wire and locally bends the guide wire, and supports the guide wire portion adjacent to the bent portion of the guide wire on the guide wire supporting portion, and maintains the guide wire in a bent state; the axial position of the roller mount can be adjusted if desired by nuts 97 and 98 (see fig. 5A) to achieve adjustment of the force with which roller 212 abuts the guide wire and/or the degree of local bending of the guide wire. During the forward delivery of the guide wire by the operation, the guide wire drives the roller to rotate along the roller shaft, and the roller shaft drives the rotating shaft 261 of the speed detection assembly 203 to rotate through the auxiliary speed transmission assembly 250, so that the magnetic encoder feeds back the delivery speed of the guide wire; if the guide wire is blocked from advancing, on the one hand, the rotational speed of the roller 212 and the roller shaft 213, and thus the rotational shaft 261, may slow down or even stop rotating, and the guide wire speed fed back by the magnetic encoder may also slow down; on the other hand, the applied resistance force causes the guide wire to bend further or tends to bend further at the local bending portion, and the applied resistance force is transmitted to the roller 212 of the guide wire speed-force transmission unit 202, further transmitted to the screw 214, transmitted to the force sensor 4 via the screw 214, and the force is measured by the force sensor 4. Since the guide wire is locally curved at the roller 212, the curved guide wire portion is most sensitive to the resistance experienced when the guide wire is hindered from advancing, thereby accurately transmitting the resistance experienced to the speed-force transmission assembly and being detected by the force sensor. Delivery of the guidewire should be paused when the feedback guidewire speed decreases to a predetermined threshold and/or the detected force is greater than a predetermined threshold.

During operation of the speed-force sensing device of the second embodiment, when delivery of the guidewire is blocked, force is transmitted to the roller, possibly causing the speed-force transmission assembly to move, thereby driving the driving bevel gear 251 to move; by providing the sliding bevel gear 252 and biasing the sliding bevel gear 252 with the coil spring 254, the speed transfer assembly can be adapted to drive this linear movement of the bevel gear 252 and to reliably engage the driving bevel gear 251 with the sliding bevel gear 252.

In a second embodiment of the described speed-force sensing device, the essential features are that, on the one hand, the speed-force transmission assembly is provided with a roller and a roller shaft rotating together with the roller, the roller is contacted with the guide wire and driven to rotate by the guide wire, the rotation of the roller shaft is output to the rotating shaft via a transmission mechanism (namely, an auxiliary speed transmission assembly), and the rotation speed of the rotating shaft is detected by using an associated rotation speed sensor so as to obtain/feed back the delivery speed of the guide wire; on the other hand, the speed-force transmission assembly can move linearly relative to the support base 206 and is provided with a roller 212 in contact with the guide wire at the force-bearing end thereof, the support base is provided with a guide wire supporting part, the guide wire supporting part and the roller are positioned at two opposite sides of the guide wire in use, and the guide wire supporting part is arranged so that the guide wire can be locally bent under the action of the roller; during use of the speed-force sensing device, the roller of the speed-force transmission assembly abuts against the advancing guide wire, causing localized bending of the guide wire and supporting the portion of the guide wire adjacent the bending portion of the guide wire on the support and maintaining the guide wire in a bent state, whereby a force will act on the roller as the guide wire delivery encounters resistance; meanwhile, the speed-force transmission assembly further comprises a force transmission end connected with the force sensor and used for transmitting the force acted on the roller by the guide wire to the force sensor and detecting the force by the force sensor.

For example, the transmission (i.e., the auxiliary speed transfer assembly) is not limited to the particular form of construction described, but may take on various other forms of transmission.

In the above-described first and second embodiments, the rotation speed sensor includes a magnetic encoder and a magnet for detecting the rotation speed of the roller shaft or the rotation shaft; as a preferred embodiment, a magnet is mounted at an axial end of the roller shaft or an axial end of the rotating shaft, and a magnetic encoder is disposed axially opposite to the magnet. It should be noted here that the rotational speed sensor is not limited to the specific structural form described, but may take any form of sensor that can be used to detect the rotational speed of the shaft/the rotating shaft, such as an optoelectronic rotational speed sensor, a hall rotational speed sensor, a variable reluctance rotational speed sensor, etc.; furthermore, the rotation output member as the object to be detected is not limited to the described roller shaft or rotation shaft, but other rotation members adapted to the employed rotation speed sensor may be used as the rotation output member, which are connected to and rotated in synchronization with the roller shaft or the output shaft, depending on the employed specific rotation speed sensor.

The embodiments described in connection with the first embodiment are equally applicable to the second embodiment with respect to the roller, the upper end baffle, the lower end baffle, and the guide wire supporting portion, and the description thereof is omitted for the sake of brevity.

In the second embodiment, the assembled upper end baffle 8, lower end baffle 9, speed-force transmission assembly 202 (with or without screw 214) and assembly baffle 63 form a speed-force transmission device, which can be configured as a separate assembly, and can be used in the solution of the second embodiment, or can be used in combination with other speed detection assemblies/rotation speed sensors, including the speed detection assembly described in connection with the first embodiment. In the case of being a separate component, some structures may be appropriately modified, such as the waist-shaped hole 70 of the lower end baffle 9 being formed as a fixing circular hole for fixing the guide rod 72, and the waist-shaped hole 71 being formed as a screw hole; correspondingly, the blind hole 91 of the upper end baffle 8 may be formed as a waist-shaped blind hole or a waist-shaped hole penetrating the upper end baffle 8, and the screw hole 56 is formed as a waist-shaped screw hole. In this way, after the screw 57 is unscrewed, the lower end baffle 9 is allowed to undergo a relative displacement with respect to the upper end baffle 8 without the upper end baffle 8 and the lower end baffle 9 being detached from each other.

A third embodiment of the speed-force sensing device of the present utility model is described below with reference to fig. 17-22.

In the third embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

Referring to fig. 17 and 18, a speed-force sensing device 301 of a third embodiment, similar to the first embodiment, includes a speed-force transmission assembly 302, a speed detection assembly, a force sensor 4, and a body structure 305. In the speed-force sensing device of the third embodiment, the speed detecting assembly and the force sensor are the same as the degree detecting assembly 3 and the force sensor 4 of the first embodiment, and the description thereof is omitted herein; the overall structure of the speed-force transfer assembly 302 and the body structure 305 are substantially identical, and only the distinguishing structure will be described below.

As shown in fig. 17 and 18, instead of the screw 14 of the first embodiment, the speed-force transmission assembly 302 of the third embodiment is provided with a shaft 314, the shaft 314 is fixedly installed in the hole 355 of the upper end baffle 8, a coil spring 380 is sleeved thereon, and a circular hole 381 is formed on the roller seat 311 of the speed-force transmission assembly. In the assembled state, shaft 314 is inserted into circular bore 381, shaft 314 being in a clearance fit with circular bore 381, thereby allowing roller mount 311 of speed-force transfer assembly 302 to move relative to shaft 314; while the coil spring 380 has one end abutting against the stop surface 382 of the upper end baffle 8 and the other end abutting against the lower surface of the roller seat body 311, thereby biasing the roller seat 311 and thus the speed-force transmission assembly 302.

The speed-force sensing device of the third embodiment employs a force detecting means different from that of the first embodiment, and a specific description is given below.

Referring to fig. 17, 18 and 20, in the third embodiment, the force sensor bracket 307 is fixedly mounted on the lower end baffle 9, the end of the force sensor bracket 307 facing away from the lower end baffle 9 is provided with a mounting portion 344, and the mounting portion 344 is formed with a screw hole, and correspondingly, the end of the force sensor 4 connected to the force sensor bracket 307 is formed with a screw hole, whereby the force sensor 4 can be fixedly mounted on the force sensor bracket 307 by the screw 345.

For detection of guidewire delivery forces a force transfer member 568 is provided. As shown in fig. 17, force transfer member 568 is pivotally mounted to force sensor bracket 307 by a pivot 567 that is fixed to force sensor bracket 307. Referring to fig. 19, a specific structure of the force transfer member is illustrated. As shown in fig. 19, force transfer member 568 is formed with a mounting hole 569 that mates with pivot 567 and includes a first arm 570 and a second arm 571 that are disposed at an angular spacing from each other, the two arms being interconnected by a reinforcing bar 572. The first arm 570 has a force-bearing end 573, the force-bearing end 573 having a force-bearing surface 575 formed thereon, the force-bearing end 573 being shaped and dimensioned to be inserted into a through-hole 80 (see fig. 18, fig. 2, 5A and 7) formed in the lower end stop 9 so as to be able to access the roller and contact the guide wire 15 exposed through the through-hole 80.

The end of the second arm 571 facing away from the mounting hole 569 is provided with a screw mounting portion 576 in a cylindrical shape, a threaded hole 577 is formed in the screw mounting portion 576, and a force transmission screw 578 is mounted in the threaded hole 577 (see fig. 17 and 18), and an end of the force transmission screw 578 located at the sensor is a force transmission end. In the assembled state of the speed-force sensing device, as shown in fig. 17 and 18, the force-transmitting end of the force-transmitting screw 578 is in contact with the force-receiving surface of the free end of the force sensor 4. Alternatively, the free end of force sensor 4 may define a blind hole 579, and the bottom of blind hole 579 acts as a force bearing surface and contacts the force transmitting end of force transmitting screw 578, see FIG. 18.

The operation of the speed-force sensing device according to the third embodiment of the present utility model will be described below.

Referring to fig. 20, fig. 20 illustrates a use state of the speed-force sensing device according to the third embodiment of the present utility model. As shown in fig. 18, in the assembled state of the speed-force sensing device of the third embodiment, the force-receiving end 573 of the force transmission member 568 is inserted in the through-hole 80 and is in contact with the guide wire 15 exposed via the through-hole 80; the roller 12 of the speed-force transmission assembly 302 contacts the guide wire 15 from the other side of the guide wire 15, and due to the biasing action of the coil spring 380, the roller 12 presses the guide wire 15 against the force-receiving surface 575 of the force-receiving end 573 of the force-transmitting member 568 with a suitable force; on the other hand, the force-transmitting end of force-transmitting screw 578 of force-transmitting member 568 is in contact with the force-receiving surface of force sensor 4.

Before operation, the speed-force sensing device is fixedly arranged at a certain part of a guide wire walking path, and the guide wire is arranged in a guide wire passage of the speed-force sensing device, so that the guide wire is delivered and retracted through the guide wire passage of the speed-force sensing device. The roller 12 abuts against the guide wire passing through to locally bend the guide wire, and the guide wire part adjacent to the bending part of the guide wire is supported on the guide wire supporting part, and the guide wire is kept in a bending state; while the force-bearing surface 575 at the end of the first arm 570 of force-transmitting component 568 is caused to abut the guidewire from the other side, bringing the force-transmitting end of the second arm 571 into contact with the sensor. The roller 12 of the speed-force transfer assembly 302 presses the guide wire against the force-receiving surface 575 with a suitable force under the biasing force of the coil spring 380.

During delivery of the guidewire during surgery, the guidewire will drive the roller and thus the roller shaft, thereby rotating the magnet 28, and the magnetic encoder will detect/feedback the delivery rate of the guidewire. If the guide wire is blocked from advancing, on the one hand, the rotational speed of the roller 12 and the roller shaft 13, and thus the magnet 28, will slow down or even stop rotating, and the speed of the guide wire fed back by the magnetic encoder will also slow down; on the other hand, the applied resistance causes the guidewire to bend further or tend to bend further at the localized bending location, thereby creating a force on force-receiving surface 575 at force-receiving end 573 of force-transmitting member 568, which in turn is transmitted to force sensor 4 via force-transmitting member 568, the magnitude of the force being measured by force sensor 4. Since the guide wire is locally bent at the roller 12, the bent guide wire portion is most sensitive to the resistance force reflected when the guide wire is hindered from advancing, thereby accurately transmitting the resistance force to the speed-force transmission assembly and being detected by the force sensor. Delivery of the guidewire should be paused when the feedback guidewire speed decreases to a predetermined threshold and/or the detected force is greater than a predetermined threshold.

In a third embodiment of the described speed-force sensing device, the essential features are that, on the one hand, the speed-force transmission assembly is provided with a roller and a roller shaft rotating together with the roller, the roller being in contact with and driven in rotation by the guide wire; a rotational speed sensor is provided in association with the roller shaft for detecting the rotational speed of the roller shaft to thereby learn/feed back the delivery speed of the guidewire. On the other hand, the speed-force transmission assembly is mounted on the support base and comprises a roller which abuts against the guide wire; a force transfer member movably mounted on the body and including a force receiving end including a force receiving face and a force transferring end associated with the force sensor for transferring force received by the force receiving face to the force sensor; in the assembled state of the speed-force sensing device, the roller is exposed or extends outwards from the supporting seat to be accessible by the stress surface; during the use of the speed-force sensing device, the roller and the force bearing surface are positioned on two opposite sides of the guide wire, the roller of the speed-force transmission assembly is abutted against the guide wire which passes through, so that the guide wire is locally bent and kept in a bending state, and the force bearing surface of the force transmission component is contacted with the guide wire. Thus, when the guide wire delivery encounters resistance, the guide wire can apply force to the force bearing surface (or force bearing part) of the force transmission component, and the force transmission component transmits the force applied by the guide wire to the force bearing surface to the force sensor, and the force sensor detects the force.

Therefore, the technical solution of the third embodiment of the present utility model is not limited to the specific form described.

The modified embodiment described in connection with the first embodiment is equally applicable to the third embodiment with respect to the roller, the upper end baffle, the lower end baffle, and the guide wire supporting portion, and the description thereof is omitted for the sake of brevity.

In addition, in the speed-force sensing device of the third embodiment, since the force-receiving surface 575 of the force-transmitting member 568 abuts the guide wire at the other end of the guide wire to limit movement of the guide wire, the guide wire support portion can be omitted in the speed-force sensing device of the third embodiment.

In the third embodiment, referring to fig. 18, the shaft 314 of the speed-force transmission assembly 302 is fixedly installed in the circular hole 355 of the upper baffle 8, and a coil spring 380 is sleeved on the shaft, and the coil spring 380 is used for adjusting the interference force between the roller 12 and the guide wire. Other arrangements of the mounting of the speed-force transfer assembly 302 to the support base are possible, however, and fig. 21 illustrates another example of the mounting of the speed-force transfer assembly 302 to the support base. As shown in fig. 21, the speed-force transmission assembly 302 is provided with a screw 414, through-holes 455 are formed in the upper end baffle 8, and screw holes 419 are formed in the roller seat 411. In the assembled state, one end of the screw 414 is fixedly installed in the screw hole 419 of the roller mount 411, the other end of the screw 414 extends through the through-hole 455 of the upper end shield 8, and the screw 414 is fixed by

nuts

456 and 457 located at both sides of the through-hole 455, whereby the installation position of the speed-force transmission assembly and thus the roller with respect to the support mount can be adjusted by adjustment of the

nuts

456 and 457.

Fig. 22 illustrates yet another example of the mounting of the speed-force transfer assembly 302 on a support base. As shown in fig. 22, the speed-force transmission assembly 302 is provided with a screw 514, a coil spring 580 is mounted on the screw 514, a through hole 555 is formed in the upper baffle 8, and a threaded hole 519 is formed in the roller seat 511. During assembly, the screw 514 is inserted into the screw 514 through the through hole 555 formed on the upper end baffle plate, the spiral spring 580 is sleeved on the screw 514, and then the end part of the screw 514 is screwed into the threaded hole 519 of the roller seat 511, so that the screw is fixed relative to the roller seat; a nut 588 is then mounted on the other end of the screw 514. The screw 514 is in clearance fit with the through hole 555 on the upper baffle plate, so that the speed-force transmission assembly is allowed to linearly move relative to the supporting seat under the action of the acting force generated by the guide wire when the speed-force sensing device is in actual use, and the spiral spring 580 is utilized to bias the speed-force transmission assembly towards one side of the guide wire. In addition, the axial position of the screw 514 can be adjusted by the nut 588 to adjust the force with which the roller 12 abuts the guide wire and/or the degree to which the guide wire is partially bent; at the same time, nut 588 also acts as a stop to limit the maximum amount of movement of the speed-force transmission assembly and thus the roller mount in a linear direction toward the guidewire under the influence of coil spring 85.

Furthermore, as an alternative, the speed-force transmission assembly may also be fixedly mounted on the support base. In this case, there is no need to provide some parts including the screw 314.

In the third embodiment described above, force transfer member 568 is pivotally mounted to force sensor mount 307 as shown in fig. 17. However, the force-transmitting member may take other forms, for example, it may take the form of a linear shaft, which is arranged between the roller and the force sensor, the end of the force-transmitting member in contact with the guide wire being formed with a force-receiving surface, and the force-transmitting member being mounted on the body by means of a guide device so as to be linearly movable in the direction towards and away from the guide wire.

As a modification of the third embodiment described above, the force-transmitting rod of the force-transmitting member (in the embodiment the rod portion of the force-transmitting screw 578) may be fixedly connected to the force sensor by a nut as described in connection with the first embodiment. In addition, the force transmission rod can be fixedly connected with the force sensor in an adjustable way along the axial position of the force transmission rod so as to adjust the relative position of the roller of the speed-force transmission assembly and the stress surface of the force transmission component. For this purpose, the end of the dowel bar connected to the force sensor is provided with an external thread, and the force sensor is provided with a through hole, and the dowel bar is connected with the force sensor in a position-adjustable manner by using nuts positioned at two sides of the through hole.

Referring next to fig. 23 and 24, wherein fig. 23 is a perspective view illustrating a fourth embodiment of the speed-force sensing device of the present utility model; fig. 24 is a perspective view of a speed-force sensing device of a fourth embodiment, with the bottom box removed to show the structure of the speed detection assembly and the auxiliary speed transmission assembly. The speed-force sensing device of the fourth embodiment is identical to the speed-force sensing device of the second embodiment in that it is identical to the speed-force sensing device of the third embodiment. All technical matters described in connection with the third embodiment are applicable to the speed-force sensing device of the fourth embodiment, and the description thereof is omitted for the sake of brevity.

Further, as a modification of the fourth embodiment of the speed-force sensing device, the sliding bevel gear 252 may be fixedly mounted on the transmission shaft 253 or integrally formed with the transmission shaft 253, in which case the coil spring 254 may be omitted.

The speed-force sensing method of the present utility model will be described below with reference to the speed-force sensing device described above.

According to the present utility model, a method for detecting a guidewire delivery speed and a guidewire delivery resistance comprises the steps of:

(1) A roller with a roller shaft is arranged at a certain part of a guide wire walking path, the roller is contacted with the guide wire, and the guide wire is locally bent by the roller and kept in a bending state, so that the roller can be driven to rotate by the delivered guide wire, wherein the roller shaft and the roller synchronously rotate;

(2) A rotational speed sensor for detecting the rotational speed of the rotary output member, and a force sensor for detecting the force transmitted by the force transmission member are provided, wherein,

the rotary output member includes one of:

the roller shaft of the roller is provided with a plurality of rollers,

a rotating element mounted on the roller shaft and rotating synchronously with the roller shaft,

a rotation shaft connected to the roller shaft via a transmission mechanism,

the force transmission component is arranged at a local bending position of the guide wire and is contacted with the guide wire, so as to bear and transmit the force transmitted to the bending position during the delivery of the guide wire;

(3) When the guide wire is delivered forwards, the guide wire drives the roller to rotate, and the roller drives the rotary output element to synchronously rotate;

(4) Detecting the rotation speed of the rotary output element by using the rotation speed sensor, so as to obtain the delivery speed of the guide wire; and simultaneously detecting the force transmitted by the force transmission component by using the force sensor.

The speed sensing device and the speed sensing method are described above by taking a guide wire as an example, and it should be specifically noted that the speed sensing device and the speed sensing method of the present utility model are not limited to use with a guide wire, but can be used with any elastically bendable similar component, including but not limited to, a wire rope, a cable, an optical fiber, and a enteroscope, a gastroscope, etc.

The utility model has been described above with reference to specific embodiments with reference to the accompanying drawings, but this is for illustrative purposes only and the utility model is not limited thereto. It will thus be apparent to those skilled in the art that various changes and modifications may be made within the technical spirit and scope of the utility model, and these changes and modifications should also be construed as falling within the scope of the utility model, which is defined by the claims and their equivalents.

Claims

1. A device for detecting guidewire delivery speed and guidewire delivery resistance, the device comprising:

A main body;

a speed-force transmission assembly;

a rotation speed sensor; and

a force sensor;

the roller shaft;

a rotation shaft connected to the roller shaft via a transmission mechanism;

2. The apparatus for detecting a wire delivery speed and a wire delivery resistance according to claim 1, wherein the wire supporting portion supports the wire on both sides of the roller in a wire traveling path direction, and is formed with a through hole or a notch or a recess at a position opposite to the roller to allow the wire to be locally bent.

3. The device for detecting guidewire delivery speed and guidewire delivery resistance of claim 2, wherein the guidewire support is symmetrically disposed with respect to the roller in a guidewire travel path direction.

4. A device for detecting guidewire delivery speed and guidewire delivery resistance as in claim 3, wherein the guidewire support includes two guidewire support surfaces symmetrically disposed relative to the roller in a direction of a guidewire travel path.

5. A device for detecting guidewire delivery speed and guidewire delivery resistance as in claim 3, wherein the guidewire support comprises two guidewire support rollers or two guidewire support columns symmetrically disposed relative to the roller in the direction of the guidewire travel path.

6. The device for detecting guidewire delivery speed and guidewire delivery resistance of claim 1, wherein the guiding means comprises a slider disposed on opposite sides of the roller seat and a slide rail disposed on the support seat that mates with the slider.

7. The device for detecting guidewire delivery speed and guidewire delivery resistance of claim 1, wherein the force transfer member of the speed-force transfer assembly comprises a force transfer rod coupled to the roller mount and extending away from the roller mount.

8. The device for detecting guidewire delivery speed and guidewire delivery resistance according to claim 7, wherein the dowel is fixedly connected to the force sensor in such a way that the axial position along the dowel's axis is adjustable in order to adjust the degree of localized bending of the guidewire and/or the force with which the roller abuts the guidewire.

9. The device for detecting guidewire delivery speed and guidewire delivery resistance as defined in claim 8, wherein an external thread is formed at an end of the dowel bar connected to the force sensor and a through hole is formed in the force sensor, the dowel bar being adjustably connected to the force sensor by means of nuts located at both sides of the through hole.

10. The device for detecting guidewire delivery speed and guidewire delivery resistance of claim 1, wherein the force sensor mount is fixedly coupled to the support base in a position-adjustable manner along a direction perpendicular to a direction of linear movement of the speed-force transfer assembly.

11. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 10, wherein one of the force sensor bracket and the support base has a threaded hole formed therein, the other of the force sensor bracket and the support base has a waist-shaped hole formed therein extending in a direction perpendicular to a linear movement direction of the speed-force transmission assembly, and the force sensor bracket and the support base are fixedly coupled by a screw.

12. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 1, wherein the rotational output element is the roller shaft, and the rotational speed sensor comprises a magnet mounted at an axial end of the roller shaft and a magnetic encoder disposed axially opposite the magnet.

13. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 12, wherein the magnetic encoder is mounted on a magnetic encoder mount fixedly coupled to the roller mount, the magnetic encoder mount, magnetic encoder and magnet comprising a speed detection assembly.

14. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 13, wherein the support base comprises an upper end baffle, a lower end baffle, and a bottom box, the lower end baffle disposed between the upper end baffle and the bottom box; the speed-force transmission assembly is arranged on the upper end baffle plate in a linear movable way through the guide device, and the speed-force transmission assembly and the speed detection assembly are positioned in an installation space formed after the upper end baffle plate, the lower end baffle plate and the bottom box are assembled.

15. The apparatus for detecting a wire delivery speed and a wire delivery resistance according to claim 1, wherein the rotation output member is a rotation shaft connected to the roller shaft via a transmission mechanism, and the rotation speed sensor includes a magnet mounted at an axial end of the rotation shaft, and a magnetic encoder disposed axially opposite to the magnet.

16. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 15, wherein the magnetic encoder, magnet and rotating shaft are mounted in a housing, the rotating shaft extending from the housing and being coupled to the drive mechanism, the magnetic encoder, magnet, rotating shaft and housing comprising a speed detection assembly, the speed detection assembly and drive mechanism being disposed in a base cartridge.

17. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance according to claim 16, wherein the transmission mechanism comprises a first bevel gear installed at the shaft end of the roller shaft, a transmission shaft, and a second bevel gear installed at one end of the transmission shaft and engaged with the first bevel gear, and the other end of the transmission shaft is connected with the rotation shaft and drives the rotation shaft to rotate;

the second bevel gear is arranged to be axially movable along the transmission shaft, the second bevel gear is provided with a sleeve, an axially extending long hole is formed in the sleeve, and a pin shaft is arranged on the transmission shaft; in the assembled state, the sleeve is sleeved on the transmission shaft, and the pin shaft extends through the long hole and abuts against one end of the long hole, which is far away from the second bevel gear; a biasing spring is provided on a side of the sleeve facing away from the second bevel gear for biasing the sleeve in a direction toward the roller shaft.

18. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance according to claim 16, wherein the support base comprises an upper end baffle and a lower end baffle, the speed-force transmission assembly being linearly movably mounted on the upper end baffle by a guide means, the speed-force transmission assembly being located in a mounting space formed by the upper end baffle and the lower end baffle after assembly; in the assembled state of the device for detecting the guide wire delivery speed and the guide wire delivery resistance, the supporting seat is mounted on the bottom box, the lower end baffle is positioned between the upper end baffle and the bottom box, and a hole allowing the roller shaft to pass through is formed on the bottom box.

19. A device for detecting guidewire delivery speed and guidewire delivery resistance as in claim 14 or 18, wherein the upper end baffle and lower end baffle are removably secured to one another, the guidewire passage portion being exposed to facilitate installation of the guidewire.

20. The device for detecting guidewire delivery speed and guidewire delivery resistance of claim 14 or 18, wherein an end of the lower end baffle adjacent the guidewire channel has a first step extending from the lower end baffle toward a side of the upper end baffle, the first step including a first mounting surface; an end face of one end of the upper end baffle adjacent to the guide wire aisle forms a second mounting surface matched with the first mounting surface, and the first mounting surface and the second mounting surface are attached to each other in an assembled state of the supporting seat;

Wherein the guidewire channel is formed by one of:

1) The guide wire aisle is formed by encircling a groove formed on the second mounting surface with the first mounting surface, and the first mounting surface is used as the guide wire supporting part and is provided with a through hole, a notch or a concave part at a position opposite to the roller;

2) The guide wire aisle is formed by encircling a groove formed on the first mounting surface and the second mounting surface, the bottom of the groove formed on the first mounting surface is used as the guide wire supporting part, and a through hole, a notch or a concave part is formed at the position opposite to the roller;

3) The guide wire aisle is formed by encircling a groove formed on the second mounting surface and a groove formed on the first mounting surface, the bottom of the groove formed on the first mounting surface is used as the guide wire supporting part, and a through hole, a notch or a concave part is formed at a position opposite to the roller.

21. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance according to claim 14 or 18, wherein an end of the lower end baffle adjacent to the guidewire passage is formed with a two-layered step portion protruding from the lower end baffle toward one side of the upper end baffle, the two-layered step portion including a first step portion located on the outside and a second step portion located on the inside, the first step portion having a first mounting surface and the second step portion having a third mounting surface, the first and third mounting surfaces having a fifth surface facing the upper end baffle therebetween;

A third step portion recessed relative to the lower end baffle is formed at an end portion of the upper end baffle adjacent to the guide wire aisle, whereby a second mounting surface adapted to the first mounting surface, a fourth mounting surface adapted to the third mounting surface, and a sixth surface facing the lower end baffle between the second mounting surface and the fourth mounting surface are formed at an end portion of the upper end baffle adjacent to the guide wire aisle; in an assembled state of the support base, the first mounting surface and the second mounting surface are attached to each other, the third mounting surface and the fourth mounting surface are attached to each other, and the fifth surface and the sixth surface are attached to each other;

at the junction of the second mounting surface and the sixth surface of the upper end baffle, the upper end baffle is partially cut away, thereby forming the guide wire aisle in an assembled state of the upper end baffle and the lower end baffle; wherein the first mounting surface of the lower end baffle plate is used as the guide wire supporting part, and a through hole, a notch or a concave part is formed at a position opposite to the roller.

22. The device for detecting guidewire delivery speed and guidewire delivery resistance of claim 21, wherein the cut-away portion of the upper end baffle is rectangular in cross-section.

23. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 20, wherein the upper end baffle is fixedly coupled to the lower end baffle in a relatively movable manner to permit relative misalignment of the upper end baffle and the lower end baffle in a direction perpendicular to the guidewire channel such that the first mounting surface is spaced from the second mounting surface to form a guidewire mounting gap through the guidewire channel through which a guidewire may be mounted in the guidewire channel.

24. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 21, wherein the upper end baffle is fixedly coupled to the lower end baffle in a relatively movable manner to permit relative misalignment of the upper end baffle and the lower end baffle in a direction perpendicular to the guidewire channel such that the first mounting surface is spaced from the second mounting surface to form a guidewire mounting gap through the guidewire channel through which a guidewire may be mounted in the guidewire channel.

25. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance according to claim 23, wherein in an assembled state of the upper end baffle, the lower end baffle and the bottom box, the upper end baffle, the lower end baffle and the bottom box are fixed by screws, screw holes are formed on the upper end baffle, waist-shaped holes extending in a direction in which the upper end baffle and the lower end baffle are relatively displaced are formed on the lower end baffle, and screw holes are formed on the bottom box.

26. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance according to claim 24, wherein in an assembled state of the upper end baffle, the lower end baffle and the bottom box, the upper end baffle, the lower end baffle and the bottom box are fixed by screws, screw holes are formed on the upper end baffle, waist-shaped holes extending in a direction in which the upper end baffle and the lower end baffle are relatively displaced are formed on the lower end baffle, and screw holes are formed on the bottom box.

27. A device for detecting guidewire delivery speed and guidewire delivery resistance as in claim 14 or 18, wherein the guide means comprises a slider disposed on opposite sides of the roller mount and a slide rail disposed on the support mount that mates with the slider;

the upper end baffle is provided with a through hole forming a part of the installation space, the side walls of the through hole, which are opposite to each other along the direction of the guide wire passageway, are provided with baffle plates in the form of steps, the baffle plates are positioned on one side of the through hole, which faces the lower end baffle plate, and comprise a first baffle plate part far away from the side walls and a second baffle plate part adjacent to the side walls, a step is formed between the two baffle plate parts, and the surface of the second baffle plate part, which faces away from the lower end baffle plate, is provided with threaded holes; the supporting seat further comprises a component baffle plate in the form of a rectangular baffle plate, a screw hole corresponding to the screw hole in the second baffle plate part is formed in the component baffle plate, the component baffle plate is fixed on the second baffle plate part by using screws, and the component baffle plate and the first baffle plate part form the sliding rail together.

28. The apparatus for detecting guidewire delivery speed and guidewire delivery resistance of claim 14 or 18, wherein the force sensor bracket is fixedly connected to the upper end baffle.

29. The device for detecting wire delivery speed and wire delivery resistance according to claim 1, wherein flanges are formed on opposite sides of a surface of the roller that abuts against the wire, for preventing the wire from being separated from the abutment surface of the roller.