CN213075795U - Tourniquet - Google Patents

Abstract

The utility model discloses a tourniquet, which comprises a fixing module, a hemostasis module and an indicating module; the floating nut is arranged around the pressure stud, the upper end of the floating nut is fixedly connected with the knob, and the lower end of the floating nut is provided with a supporting part; the spinning block is arranged around the floating nut, the inner side of the spinning block is abutted against the floating nut, the outer side of the spinning block is in threaded fit connection with the inner side of the protruding part, the lower end of the spinning block is supported by the supporting part, and the spinning block is provided with a material placing hole which penetrates through the spinning block from top to bottom; the spring is sleeved outside the floating nut, the upper end of the spring is abutted against the top surface of the bulge, and the lower end of the spring is abutted against the upper end of the spinning block; the connecting piece is arranged in the object placing hole, does not ascend along with the spinning block and only rotates along with the spinning block, and the lower end of the connecting piece is fixedly connected with the pointer; the pointer rotates along with the connecting piece and points to different pressure values on the dial plate; a time device can be arranged for measuring the hemostasis time; the tourniquet can be locked. The utility model discloses simple structure, easily processing is convenient for observe and is exerted the pressure value, and the precision is higher, makes things convenient for the timing, and is safer.

Description

Tourniquet

Technical Field

The utility model relates to the field of medical equipment, more specifically relates to a tourniquet.

Background

At present, after a puncture needle or an indwelling needle is pulled out in a puncture operation (such as a radial artery or femoral artery interventional operation), finger compression hemostasis is generally adopted, but the hemostasis is performed by pressing with hands, the applied force is not easy to keep stable, the hemostasis fails frequently, and the hemostasis needs to be applied again, so that the labor intensity of medical staff is increased, and the pain of a patient is caused on the other hand. In the prior art, hemostasis is also performed through a tourniquet, but the tourniquet in the prior art has the problem that pressure adjustment is not easy to control, some tourniquets do not have pressure display, and even if some tourniquets have pressure display, the pressure display is not easy to observe, the display effect is not good, and the adjustment of a doctor is not convenient; in addition, the existing tourniquet has no safety design, so that the pressure of a patient can be adjusted privately, and the risk of bleeding exists.

Therefore, there is still a lack in the art of a safer tourniquet that accurately displays the pressure value, is easy to observe when applying pressure, and is easy to adjust.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tourniquet, the utility model discloses a tourniquet structure is simpler, easily processes, and it is convenient for observe more to apply the pressure value, and the precision is higher, changes in the regulation and applies pressure, and convenient timing, prevents that non-medical personnel from adjusting pressure privately.

A first aspect of the present invention provides a tourniquet, comprising a fixing module, wherein the fixing module comprises a strap plate and a connecting strap; the band plate is provided with a through hole, extends upwards from the circumferential side of the through hole and is inwards folded into an annular opening at the top end to form the protruding part, two ends of the band plate are respectively connected with two ends of the connecting band, and the length of the connecting band is adjustable; a hemostatic module comprising a knob, a pressure stud, and a hemostatic gel pad; the knob is externally coated on the protruding part and can rotate relative to the protruding part; the pressure stud penetrates through the knob and the protruding part, the upper part of the pressure stud is in threaded fit connection with the knob, the lower end of the pressure stud is fixedly connected with the hemostatic rubber pad, and the pressure stud in threaded fit with the knob moves downwards to drive the hemostatic rubber pad to press downwards by rotating the knob; wherein, the tourniquet further comprises a time device, and the time device is used for recording the hemostasis duration.

In another preferred embodiment, the time device is arranged on top of the knob.

In another preferred example, the time device is an electronic clock which starts timing under the condition that the tourniquet is bound to the patient and starts hemostasis, and stops timing under the condition that the tourniquet is detached from the patient and stops hemostasis, and the electronic clock displays the hemostasis duration.

In another preferred embodiment, the electronic clock includes an on-off key, and when the on-off key is pressed, the electronic clock starts timing, and when the on-off key is pressed again, the electronic clock stops timing.

In another preferred example, the electronic clock includes a sensor, the sensor controls the clock to start timing when the sensor detects a human body, and the sensor controls the clock to stop timing when the sensor does not detect a human body.

In another preferred embodiment, the time device is a clock dial, the clock dial is circular or disc-shaped, time scales are marked on the clock dial, the clock dial is embedded in a groove of the knob and can rotate relative to the groove, and an indication mark is further arranged on the knob.

In another preferred example, when in use, the indication mark corresponds to a time scale on the clock pull sheet and is used for indicating the time for starting hemostasis. Medical personnel can estimate the hemostasis duration of the patient according to the real-time.

In another preferred example, the division value of the time scale on the clock plectrum can be, but is not limited to, 10min, 15min, 20min, 30min and 60 min.

In another preferred example, the clock shifting piece comprises a positioning piece, and the positioning piece is used for positioning the position of the clock shifting piece relative to the knob and limiting the rotation of the clock shifting piece relative to the knob in the hemostasis process.

In a second aspect of the invention, there is provided another tourniquet comprising a securing module comprising a strap plate and a connecting strap; the band plate is provided with a through hole, extends upwards from the circumferential side of the through hole and is inwards folded into an annular opening at the top end to form the protruding part, two ends of the band plate are respectively connected with two ends of the connecting band, and the length of the connecting band is adjustable; a hemostatic module comprising a knob, a pressure stud, and a hemostatic gel pad; the knob is externally coated on the protruding part and can rotate relative to the protruding part, and a time device is arranged on the knob and used for recording the hemostasis duration; the pressure stud is provided with an external thread, and the lower end of the pressure stud is fixedly connected with the hemostatic rubber mat; the pressure stud moves downwards by rotating the knob to drive the hemostatic rubber pad to press downwards; the indicating module comprises a floating nut, a rotary pressing block, a spring, a connecting piece, a pointer and a dial plate; the upper end of the floating nut is fixedly connected with the top cover of the knob, the floating nut is provided with internal threads, the floating nut penetrates through the protruding part and extends into the inner cavity of the protruding part, and the lower end of the floating nut is provided with a supporting part; the pressure stud is arranged in the inner cavity of the floating nut and is in threaded fit connection with the internal thread of the floating nut, and the floating nut is driven to rotate by the rotation of the knob, so that the pressure stud in threaded fit connection with the floating nut moves downwards; the spinning block is arranged around the floating nut, the inner side of the spinning block is abutted against the floating nut, the outer side of the spinning block is in threaded fit connection with the inner side of the protruding part, the lower end of the spinning block is supported by the supporting part, and the spinning block is provided with a material placing hole which penetrates through the spinning block from top to bottom; the spring is sleeved outside the floating nut, the upper end of the spring is abutted against the top surface of the protruding part, and the lower end of the spring is abutted against the upper end of the spinning block; the connecting piece is arranged in the object placing hole, the connecting piece does not ascend with the spinning block and only rotates with the spinning block, and the lower end of the connecting piece is fixedly connected with the pointer; the pointer is horizontally arranged, one end of the pointer is fixedly connected with the connecting piece and rotates along with the connecting piece, and the other end of the pointer points to different pressure values on the dial plate.

In another preferred embodiment, the time device is arranged on top of the knob.

In another preferred example, the time device is an electronic clock which starts timing under the condition that the tourniquet is bound to the patient and starts hemostasis, and stops timing under the condition that the tourniquet is detached from the patient and stops hemostasis, and the electronic clock displays the hemostasis duration.

In another preferred embodiment, the electronic clock includes an on-off key, and when the on-off key is pressed, the electronic clock starts timing, and when the on-off key is pressed again, the electronic clock stops timing.

In another preferred example, the electronic clock includes a sensor, the sensor controls the clock to start timing when the sensor detects a human body, and the sensor controls the clock to stop timing when the sensor does not detect a human body.

In another preferred embodiment, the time device is a clock dial, the clock dial is circular or disc-shaped, time scales are marked on the clock dial, the clock dial is embedded in a groove of the knob and can rotate relative to the groove, and an indication mark is further arranged on the knob.

In another preferred example, when in use, the indication mark corresponds to a time scale on the clock pull sheet and is used for indicating the time for starting hemostasis. Medical personnel can estimate the hemostasis duration of the patient according to the real-time.

In another preferred example, the division value of the time scale on the clock plectrum can be, but is not limited to, 10min, 15min, 20min, 30min and 60 min.

In another preferred example, the clock shifting piece comprises a positioning piece, and the positioning piece is used for positioning the position of the clock shifting piece relative to the knob and limiting the rotation of the clock shifting piece relative to the knob in the hemostasis process.

In another preferred embodiment, the floating nut is integral or integrally formed.

In another preferred embodiment, the tourniquet comprises a rotational locking means comprising a ring of V-shaped grooves arranged on the periphery of the knob and a spring loaded wedge pin fixed to one side of the strap plate.

In another preferred embodiment, when the knob is rotated in a first direction, the wedge-shaped pin automatically rebounds to be separated from the V-shaped groove on the knob, when the knob is rotated in a second direction, the wedge-shaped pin is clamped with the V-shaped groove, the knob cannot be rotated, and the knob can be rotated in the second direction only when the wedge-shaped pin is pulled out of the V-shaped groove.

In another preferred example, the acute angle formed by the first side of the V-shaped groove and the tangent of the vertex of the V-shaped groove is 5-45 degrees; preferably, 10-30 degrees; more preferably, 15-25 degrees.

In another preferred example, the acute angle formed by the second side of the V-shaped groove and the tangent of the vertex of the V-shaped groove is 45-90 degrees; preferably, 50-80 degrees; more preferably, 60-70 degrees.

In another preferred embodiment, the wedge-shaped pin is engaged with the V-shaped groove whether the knob is rotated in a first direction or in a second direction, the knob cannot be rotated, and the knob can be rotated in the first direction or in the second direction only when the wedge-shaped pin is pulled out of the V-shaped groove.

In another preferred example, the acute angles formed by the first side and the second side of the V-shaped groove and the tangent of the vertex of the V-shaped groove are respectively 45-90 degrees; preferably, 50-80 degrees; more preferably, 60-70 degrees.

In another preferred example, the first direction is a clockwise direction or a counterclockwise direction, and the second direction is a counterclockwise direction or a clockwise direction.

In another preferred embodiment, the floating nut comprises an upper part and a lower part, which are fixedly and detachably connected, wherein the upper part is not provided with threads, and the lower part is provided with internal threads matching with the external threads of the pressure stud.

In another preferred example, the upper part and the lower part are connected in a snap fit manner, wherein the lower end of the upper part is provided with lower teeth and/or lower grooves, and the upper end of the lower part is provided with upper grooves and/or upper teeth, wherein the upper part and the lower part are used for embedding the teeth into the grooves through axial pressure to perform the snap fit fixation, or used for separating the teeth from the grooves through axial tension.

In another preferred embodiment, the lower teeth and/or lower grooves and the upper grooves and/or upper teeth are matched.

In another preferred example, two sides of the band plate are bent, so that the inner surface of the band plate is attached to the outer surface of the hand to be stopped.

In another preferred embodiment, both sides of the band plate are flat plate-shaped.

In another preferred example, the strap plate comprises a fixing rubber pad which is used for assisting in supporting the tourniquet.

In another preferred example, the rotation angle of the pointer is 30-180 degrees.

In another preferred example, the scale stroke of the dial plate is 5-50N.

In another preferred embodiment, the wire diameter of the spring is 0.5-1.5mm, the height is 5-30mm, and the thread pitch is 1-10 mm.

In another preferred example, the number of the dial plates is 1-10

In another preferred example, the tourniquet comprises a fixing rubber pad which is used for assisting in supporting the tourniquet.

In another preferred example, the tourniquet comprises a baffle fixed at the bottom of the band plate, the baffle and the band plate enclose a pointer bin, the pointer rotates in the pointer bin, and the baffle is also used for supporting the floating nut.

In another preferred example, the tourniquet comprises a baffle fixed at the bottom of the band plate, the baffle and the band plate enclose a pointer bin, the pointer bin is arc-shaped, the pointer rotates in the pointer bin, and the baffle is further used for supporting the floating nut.

In another preferred example, the pointer is a two-way pointer, the two-way pointer includes a rotating ring, a first pointer and a second pointer, wherein the top surface of the rotating ring is fixedly connected with the connecting member, the first pointer extends outwards from the rotating ring along the radial direction of the rotating ring, and the second pointer extends from the rotating ring along the direction opposite to the first pointer.

In another preferred embodiment, the nominal diameter of the storage hole is larger than the nominal diameter of the connecting piece.

In another preferred example, the thread pitch of the thread of the spinning block matched with the bulge is 20mm-80 mm.

In another preferred example, the number of the pointers is plural.

In another preferred example, the hemostatic gel pad is transparent.

In another preferred embodiment, the hemostatic rubber pad is made of a material selected from the group consisting of: silicone, TPE, rubber, PU, latex, or combinations thereof.

In another preferred example, the dial is provided on the band plate.

In another preferred example, the thread pitch of the thread of the spinning block matched with the bulge is 20mm-80 mm.

In another preferred embodiment, the connecting member is a relatively strong rod, such as a pin.

In another preferred example, the outer side surface of the connecting member is a smooth surface.

In another preferred example, the inner side surface of the object placing hole is a smooth surface.

In another preferred example, the upper end of the connecting member abuts against the top surface of the projection.

In another preferred embodiment, one end of the connecting band is fixedly connected with one end of the band plate, and the other end of the connecting band is detachably connected with the other end of the band plate.

In another preferred embodiment, the swing joint structure of adjustable elasticity includes the side opening, the connecting band expansion end is equipped with the single hook face area, the connecting band adopts the pile material to make, the expansion end of connecting band passes the side opening, and through the fixed bonding of the area body of single hook face area and connecting band.

In another preferred embodiment, the movable connection structure capable of adjusting tightness comprises a connection belt fixed on the side holes at two sides and a fastening belt thereof, the fastening belt on the connection belt at one end is a hook surface fastening belt, the fastening belt on the connection belt at one end is a hair surface fastening belt, and the two fastening belts can be pressed and fixed.

In another preferred embodiment, the strap plate includes four-sided elongated holes, and four of the connecting straps are respectively fixed through the elongated holes.

In another preferred embodiment, the connecting band is made of a medical adhesive tape, wherein the outer end of the connecting band is an adhesive surface and can be firmly adhered to the skin of a person or another connecting band.

In another preferred embodiment, one end of the connecting band is fixed at one side hole, a buckle is arranged near the side hole, and the other end of the connecting band is inserted into the other side hole and folded back to penetrate into the buckle, so as to play a role in fixing.

In another preferred embodiment, the pointer is a bidirectional pointer.

In another preferred example, the bidirectional pointer includes a rotating ring, a first pointer and a second pointer, wherein a top surface of the rotating ring is fixedly connected with the connecting member, the first pointer extends from the rotating ring outwards along a radial direction of the rotating ring, and the second pointer extends from the rotating ring in a direction opposite to that of the first pointer.

In another preferred embodiment, the bidirectional pointer is integral or integrally formed.

In another preferred example, the first pointer and the second pointer correspond to one dial respectively, and the medical staff can observe the magnitude of the applied force more easily through the two dials.

It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.

Drawings

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

FIG. 1 is a cross-sectional view of a tourniquet according to an embodiment of the present invention;

FIG. 2 is a front view of a tourniquet according to an embodiment of the present invention;

FIG. 3 is a top view of a tourniquet according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a tourniquet in an example of the invention;

FIG. 5 is a perspective view of a pressure stud and baffle assembly in one example of the invention;

FIG. 6 is a front view of a baffle in an example of the invention;

fig. 7 is a front view of a tourniquet according to another embodiment of the present invention;

fig. 8 is a top view of a tourniquet according to another embodiment of the present invention;

fig. 9 is a bottom view of a tourniquet in another example of the invention;

fig. 10 is a cross-sectional view of a tourniquet in another embodiment of the invention;

fig. 11 is a perspective view of a pointer in another example of the present invention;

fig. 12 is a perspective view of a tourniquet in another example of the invention;

fig. 13 is a cross-sectional view of a tourniquet in yet another example of the present invention;

fig. 14 is a front view of a tourniquet in yet another example of the present invention;

fig. 15 is a top view of a tourniquet according to yet another embodiment of the present invention;

fig. 16 is a partial cross-sectional view of a tourniquet in yet another example of the present invention;

fig. 17 is a perspective view of a pressure stud and baffle assembly in yet another example of the invention;

fig. 18 is a front view of a baffle in yet another example of the present invention; fig. 19 is a perspective view of a knob with a time device according to yet another embodiment of the present invention;

fig. 20 is a perspective view of a floating nut fixedly coupled to a knob according to another embodiment of the present invention, formed by engaging upper and lower portions;

fig. 21 is a front view of a tourniquet having a connecting band secured by a buckle in yet another embodiment of the invention;

fig. 22 is a front view of a tourniquet provided with a rotational locking device according to an embodiment of the invention;

FIG. 23 is a cross-sectional view of the tourniquet of FIG. 22 provided with a rotational locking device;

fig. 24 is a longitudinal cross-sectional view of the tourniquet of fig. 22 provided with a rotation locking means.

In the drawings, each symbol is as follows:

1-a band plate;

2-connecting the belt;

3-a projection;

4-a knob;

5-a pressure stud;

6-hemostatic rubber pad;

7-a floating nut;

8-spinning the block;

9-a spring;

10-a pin;

11-a pointer;

12-a dial plate;

13-fixing the rubber mat;

14-a baffle;

15-bidirectional pointers;

16-long holes;

17-rotation circle;

18-a first pointer;

19-a second pointer;

20-a buckle;

21-a fastening tape;

22-side holes;

23-a wedge pin;

24-V type groove;

25-a wedge pin;

26-a clock dial;

27-upper part;

28-lower part.

Detailed Description

The inventor has developed a tourniquet for the first time through extensive and deep research, through a large amount of screening, compares with prior art, the utility model discloses a tourniquet drives the pointer rotation through the screw-thread fit between each part, shows the pressure value that medical person applyed, the utility model discloses a structure is simpler, easily processes, conveniently observes the pressure value that medical person applyed, and shows the accuracy, adjusts the convenience, has accomplished on this basis the utility model discloses a tourniquet is convenient.

The utility model provides a tourniquet, which is a tourniquet with a specific structure and is particularly suitable for hemostasis of puncture points after a radial artery or femoral artery intervention operation.

Typically, the floating nut and the pressure stud of the tourniquet of the present invention are engaged with each other by threads, the pressure stud can only move up and down by a constraining mechanism, the knob is fixedly connected to the floating nut, the floating nut is driven by the rotating knob to press the bleeding point by the pressure stud, at this time, the floating nut generates an upward displacement under the pressure to drive the spinning block to compress the spring to generate pressure, and the spinning block generates a rotating motion, the rotating motion drives the pointer by the connecting member, so that the spring compression displacement and the pointer deflection angle are synchronous, i.e., the spring compression distance and the pointer deflection angle are synchronous, according to the formula of spring force F ═ K ═ L (K is the spring force coefficient, L is the spring compression length), the spring force is proportional to the pointer deflection angle, according to the resultant law of force, the spring force is decomposed into a downward thrust and a rotating force of, the downward thrust is the compression force of the hemostatic rubber mat, so that the compression force of the hemostatic rubber mat is in positive correlation with the deflection angle of the pointer, and the compression force can be marked on the dial plate of the band plate through detection and setting of the detector, so that the actual pressure of the hemostatic rubber mat is displayed.

During the use, will the utility model discloses a hemostatic rubber mat aims at radial artery or femoral artery position of bleeding, ties up the bandage, and rotatory knob promotes the pressure double-screw bolt point of bleeding of oppression, shows the oppression power of bandage to the point of bleeding through the pointer simultaneously.

In another preferred embodiment, the outer side surface of the knob is provided with patterns and/or grooves, which are convenient for a user to rotate the knob.

In another preferred example, the cross section of the pressure screw column is an I-shaped cross section.

In another preferred embodiment, the baffle plate is matched with the I-shaped section of the pressure stud and used for fixing the pressure stud without displacement.

The utility model discloses a main advantage includes:

(a) the tourniquet of the utility model has simple structure and is easy to be processed and produced;

(b) the pointer and the scales are horizontally arranged, so that the pressure can be accurately displayed, the aim of accurately controlling the pressure is fulfilled, observation is facilitated, and clinical operation is facilitated;

(c) on the basis of adjusting the compression strength, the spring is added to buffer the pressure, so that a certain degree of activity is given to the patient, and the hemostatic effect is good;

(d) the design mode of fastening the connecting belt by using a buckle makes the clinical operation more convenient;

(e) by arranging the rotary locking device or by the split design of the floating nut, non-medical personnel cannot regulate pressure privately, so that the bleeding risk is avoided;

(f) through setting up the time device, make things convenient for medical staff to measure hemostasis time.

Therefore, through the utility model discloses a tourniquet, medical staff can independently adjust pressure hemostasis according to patient's actual conditions, provides stable hemostasis pressure for patient, has improved patient's hemostatic success rate greatly, and pressure is visual, and the control of the adjusting process middle force of being convenient for has also alleviateed medical staff's intensity of labour simultaneously, convenient operation, reliable and stable, and has improved the security.

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, the drawings are schematic and, thus, the present invention is not limited to the size or scale of the schematic.

It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

Example 1

The tourniquet of this embodiment is shown in figures 1-6. The tourniquet of this embodiment includes a securing module, a hemostasis module, and an indicator module. The tourniquet of this embodiment is used for radial artery interventional procedures.

The fixing module includes a band plate 1 and a connection band 2. The band plate 1 is flat, one side of the band plate is provided with a through hole, the band plate extends upwards from the circumferential side of the through hole and is inwardly contracted into an annular opening at the top end, namely, a protruding part 3 is formed, the two ends of the band plate 1 are respectively provided with a first side hole and a second side hole, wherein the first side hole is fixedly connected with one end of the connecting band 2, the other end of the connecting band 2 is provided with a single hook face band, and the single hook face band penetrates through the second side hole and is fixedly bonded with the band body of the connecting band 2 through the single hook face band. The connecting band 2 is made of plush materials, and the length of the connecting band 2 can be adjusted. In another embodiment, two ends of the strap plate 1 are respectively provided with a side hole 22, each side hole 22 is fixed with a connecting strap 2, one of the connecting straps 2 is fixed with a hair surface fastening strap 21, the other is fixed with a hook surface fastening strap 21, and the two fastening straps 21 are fixed by pressing.

The hemostatic module comprises a knob 4, a pressure stud 5 and a hemostatic rubber pad 6. The knob 4 is externally wrapped around the projection 3 and rotatable relative to the projection 3. The pressure stud 5 runs through the knob 4 and the bulge 3, the upper portion of the pressure stud 5 is in threaded fit connection with the knob 4, the lower end of the pressure stud 5 is fixedly connected with the hemostatic rubber mat 6, and the pressure stud 5 in threaded fit with the knob 4 moves downwards by rotating the knob 4 to drive the hemostatic rubber mat 6 to press downwards. The hemostatic gel pad 6 is transparent. The hemostatic rubber pad 6 is made of a material selected from the following group: silicone, TPE, rubber, PU, latex, or combinations thereof.

The indicating module comprises a floating nut 7, a spinning block 8, a spring 9, a pin 10, a pointer 11 and a dial 12. The floating nut 7 is arranged around the pressure stud 5 and is in threaded fit connection with the pressure stud 5, the upper end of the floating nut is fixedly connected with the knob 4, and the lower end of the floating nut is provided with a supporting part. Spinning piece 8 encircles the setting of floating nut 7, and its inboard offsets with floating nut 7, and the outside is connected with the inboard screw-thread fit of bulge 3, and the lower extreme is supported by the supporting part, and spinning piece 8 is equipped with the thing hole of putting that runs through from the top down. The thread pitch of the thread of the spinning block 8 matched with the bulge 3 is 20mm-80 mm. The spring 9 is sleeved outside the floating nut 7, the upper end of the spring 9 is abutted against the top surface of the bulge part 3, and the lower end of the spring 9 is abutted against the upper end of the spinning block 8. The wire diameter of the spring 9 is 0.5-1.5mm, the height is 5-30mm, and the thread pitch is 1-10 mm.

The pin 10 is arranged in the object placing hole, and the diameter of the object placing hole is larger than that of the pin 10. The pin 10 does not rise along with the rotary pressing block 8, but only rotates along with the rotary pressing block 8, and the lower end of the pin 10 is fixedly connected with the pointer 11. Pointer 11 level sets up, and pointer 11's one end and pin 10 fixed connection, and follow pin 10 rotation, pointer 11's the other end point to the different pressure values on the dial plate 12. A dial 12 is provided on the band plate 1. The rotation angle of the pointer 11 is 30-180 degrees. The scale stroke of the dial 12 is 5-50N.

The tourniquet comprises a baffle 14, the baffle 14 is fixed at the bottom of the band plate 1, the baffle 14 and the band plate 1 enclose a pointer 11 bin, the pointer 11 rotates in the pointer 11 bin, and the baffle 14 is also used for supporting the floating nut 7.

During the use, rotatory knob 4 makes pressure double-screw bolt 5 remove downwards and oppress the arm and produce pressure, and the pressure reaction moves up at floating nut 7, and floating nut 7 drives spinning block 8 and is moving up and compression spring 9 rotatoryly, because spinning block 8 is screw-thread fit with band plate 1, band plate 1 is fixed, so spinning block 8 carries out rotary motion and the motion of moving up simultaneously, pointer 11 passes through pin 10 with spinning block 8 and is connected, and pointer 11 follows spinning block 8 rotatory, the different pressure values on directional dial plate 12.

The tourniquet further comprises a fixing rubber mat 13, and the fixing rubber mat 13 is used for assisting in supporting the tourniquet.

Example 2

The tourniquet of this embodiment is substantially the same as embodiment 1, except that the fingers of the tourniquet of this embodiment are bi-directional fingers, as shown in fig. 7-12. The bidirectional pointer includes a rotating ring 17, a first pointer 18 and a second pointer 19, wherein the top surface of the rotating ring 17 is fixedly connected with the pin 10, the first pointer 18 extends outward from the rotating ring 17 in the radial direction of the rotating ring 17, and the second pointer 19 extends from the rotating ring 17 in the opposite direction to the first pointer 18. The rotation ring 17, the first pointer 18 and the second pointer 19 are integral or formed integrally. The first pointer 18 and the second pointer 19 correspond to one dial 12, respectively, and the amount of applied force is more easily observed by the medical staff through the two dials 12. The tourniquet of this embodiment may not be provided with a fixation cushion.

Further, the tourniquet of the present example is used for femoral artery intervention surgery, which is attached to the thigh of the patient. The band plate 1 of the tourniquet includes four long holes 16, and four connection bands (not shown) are fixed through the long holes 16, respectively. The connecting belt is made of medical adhesive tape, the outer end of the connecting belt is an adhesive surface, and the connecting belt can be firmly adhered to the skin of a person or the other connecting belt.

Example 3

The tourniquet of this embodiment is substantially the same as embodiment 1, except that the top of the knob of the tourniquet of this embodiment is provided with a timing device and the strap plate of the tourniquet is curved, as shown in fig. 13-20. Due to the addition of the timing device relative to the tourniquet in example 1, the upper structure thereof is also adjusted appropriately: the upper end of the floating nut 7 is fixedly connected with the top cover of the knob 4, the floating nut 7 is provided with internal threads, the floating nut 7 penetrates through the protruding part 3 and extends into the inner cavity of the protruding part 3, and the lower end of the floating nut 7 is provided with a supporting part. The pressure stud 5 is provided with an external thread, wherein the pressure stud 5 is arranged in the inner cavity of the floating nut 7 and is in threaded fit connection with the internal thread of the floating nut 7. The lower end of the pressure stud 5 is fixedly connected with the hemostatic rubber pad 6. The knob 4 drives the floating nut 7 to rotate, and the pressure stud 5 which is in threaded fit connection with the floating nut 7 moves downwards to drive the hemostatic rubber pad 6 to press downwards.

In this embodiment, the time device is a clock dial 26. The clock dial 26 is annular, a groove is arranged on the top cover of the knob 4, and the annular clock dial 26 is embedded in the groove of the knob 4 and can rotate relative to the groove. In one embodiment, the clock dial 26 is marked with a time scale, which in this embodiment is 30min, or 10min, 15min, 20min, 60min, etc., and the division value can be marked on the clock dial 26 in a manner similar to a clock scale. The knob 4 is also provided with an indication mark. In another embodiment, the time scale is circumferentially disposed on the knob 4 and the indicator markings are disposed on the clock dial 26. In use, the indicator marks are associated with time scales on the clock dial 26 for indicating when hemostasis is to begin. Medical personnel can estimate the hemostasis duration of the patient according to the real-time.

In another preferred embodiment, the clock dial 26 may further include a positioning member for positioning the clock dial 26 relative to the knob 4 to limit rotation of the clock dial 26 relative to the knob 4 during hemostasis. The positioning member may be a snap member. For example, one end of the engaging piece is hinged or pinned to the knob 4, the time scale of the clock dial 26 is designed as a recess, and the clock dial 26 is positioned by sinking the other end of the engaging piece into the recess. Other embodiments that can achieve the above described functionality are also within the scope of the invention. In another preferred embodiment, the engaging piece and the indicating mark may be combined into one piece.

Both sides of the band plate 1 are curved. To match the curved shape of the band 1, as shown in fig. 17 to 18, the magazine enclosed by the flap 14 and the band 1 is also shaped like an arc, and the pointer 15 is also shaped like an arc to rotate in the magazine. The design ensures that the tourniquet 1 has good fitting degree with the human body under the condition of not being provided with the fixed rubber mat 13, and simplifies the structure of the tourniquet.

Furthermore, as shown in fig. 20, the floating nut 7 in this embodiment is of a split design, i.e. the floating nut 7 comprises an upper part 27 and a lower part 28, the upper part 27 and the lower part 28 being detachably fixedly connected, and the upper part 27 being a smooth inner surface and the lower part 28 being provided with an internal thread matching the external thread of the pressure stud. The upper part 27 and the lower part 28 are snap-connected: the lower end of the upper part 27 is provided with lower teeth and lower grooves in the circumferential direction and the upper end of the lower part 28 is provided with upper grooves and upper teeth in the circumferential direction, wherein the teeth can be inserted into the grooves and cannot be easily disengaged. The upper part 27 and the lower part 28 are fixed by the teeth being inserted into the grooves by axial pressure and separated by the teeth being pulled out of the grooves by axial tension. In use, after the tourniquet is adjusted, the point at which hemostasis begins is recorded by the time device, and the knob is pulled by a pulling force to disengage the upper portion 27 of the floating nut from the lower portion 28. Under the condition, the non-medical staff can not regulate the pressure privately, and the bleeding risk is avoided.

Example 4

The tourniquet of this embodiment is substantially the same as embodiment 3, except that the connecting band 2 of this embodiment is a smooth bandage made of PVC and fixed to one side hole 22 of the band plate 1, and a buckle 20 is provided near this side, and the connecting band 2 is first passed through the other side hole 22 of the band plate 1 and then pulled back to pass through the buckle 20 to perform a fixing function, as shown in fig. 21.

Example 5

The tourniquet of this embodiment is substantially the same as embodiment 3, except that the floating nut of the tourniquet of this embodiment is integral or integrally formed, as shown in fig. 22-24. The tourniquet in this embodiment comprises a rotational locking means. The rotation locking means comprises a ring of V-grooves 24 arranged at the periphery of the knob 4 and a spring loaded wedge pin 23 fixed at one side of the band plate 1. Wherein, the acute angle formed by the first side of the V-shaped groove 24 and the tangent line of the vertex of the V-shaped groove 24 is 5-45 degrees; preferably, 10-30 degrees; more preferably, 15-25 degrees; an acute angle formed by the second side of the V-shaped groove 24 and a tangent line of the vertex of the V-shaped groove 24 is 45-90 degrees; preferably, 50-80 degrees; more preferably, 60-70 degrees. As shown in fig. 23, the end of the spring-loaded wedge pin 23 that contacts the V-groove 24 is shaped to complement the V-groove 24.

When the knob 4 is rotated in a first direction (clockwise in fig. 23), the wedge-shaped pin 23 automatically rebounds along the slope on the first side of the V-shaped groove 24, and disengages from the V-shaped groove 24 on the knob 4, so that the knob 4 is freely rotated. When the knob 4 is rotated in the second direction (counterclockwise in fig. 23), the wedge-shaped pin 23 engages with the V-shaped groove 24, the knob 4 cannot be rotated, and the knob 4 can be rotated in the second direction only when the wedge-shaped pin 23 is pulled out from the V-shaped groove 24.

Through the angle that the tangent line that first side and the second side of adjustment V type groove 24 become for the V type groove 24 summit, can realize knob 4 along anticlockwise free rotation equally, along block when turning clockwise, only pulls out wedge round pin 23 and makes wedge round pin 23 draw out from V type groove 24 when, and knob 4 side can be followed clockwise and rotated.

In another preferred embodiment, the acute angles formed by the first side and the second side of the V-shaped groove 24 and the tangent of the vertex of the V-shaped groove 24 are 45-90 degrees respectively; preferably, 50-80 degrees; more preferably, 60-70 degrees. No matter the knob 4 is rotated along the first direction or the second direction due to the design, the wedge-shaped pin 23 is clamped with the V-shaped groove 24, and the knob 4 cannot be rotated. The knob 4 can be rotated in a first direction or a second direction only by pulling the wedge pin 23 to withdraw the wedge pin 23 from the V-groove 24.

Example 6

The tourniquet of this embodiment is substantially the same as embodiment 3, except that the time device of the tourniquet of this embodiment is an electronic clock, the electronic clock starts to count the time under the condition that the tourniquet is attached to the patient and hemostasis is started, and the electronic clock stops counting the time under the condition that the tourniquet is detached from the patient and hemostasis is stopped, and the electronic clock displays the hemostasis duration.

In one embodiment, the electronic clock controls start and stop through an on-off key: when the on-off key is pressed, timing is started, and then the on-off key is pressed, and timing is stopped.

In another embodiment, the electronic clock is clocked by the sensor auto-sensing: when the sensor detects a human body, the sensor controls the clock to start timing, and when the sensor cannot detect the human body, the sensor controls the clock to stop timing.

All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims (10)

1. A tourniquet is characterized in that the tourniquet comprises

A fixing module including a band plate and a connecting band;

the band plate is provided with a through hole, extends upwards from the circumferential side of the through hole and is inwards folded at the top end to form an annular opening to form a protruding part, two ends of the band plate are respectively connected with two ends of the connecting band, and the length of the connecting band is adjustable;

a hemostatic module comprising a knob, a pressure stud, and a hemostatic gel pad;

the knob is externally coated on the protruding part and can rotate relative to the protruding part;

the pressure stud penetrates through the knob and the protruding part, the upper part of the pressure stud is in threaded fit connection with the knob, the lower end of the pressure stud is fixedly connected with the hemostatic rubber pad, and the pressure stud in threaded fit with the knob moves downwards to drive the hemostatic rubber pad to press downwards by rotating the knob; wherein, the tourniquet further comprises a time device, and the time device is used for recording the hemostasis duration.

2. A tourniquet is characterized in that the tourniquet comprises

A fixing module including a band plate and a connecting band;

the band plate is provided with a through hole, extends upwards from the circumferential side of the through hole and is inwards folded at the top end to form an annular opening to form a protruding part, two ends of the band plate are respectively connected with two ends of the connecting band, and the length of the connecting band is adjustable;

a hemostatic module comprising a knob, a pressure stud, and a hemostatic gel pad;

the knob is externally coated on the protruding part and can rotate relative to the protruding part, and a time device is arranged on the knob and used for recording the hemostasis duration; the pressure stud is provided with an external thread, and the lower end of the pressure stud is fixedly connected with the hemostatic rubber mat;

the pressure stud moves downwards by rotating the knob to drive the hemostatic rubber pad to press downwards; and

the indicating module comprises a floating nut, a rotary pressing block, a spring, a connecting piece, a pointer and a dial plate;

the upper end of the floating nut is fixedly connected with the top cover of the knob, the floating nut is provided with internal threads, the floating nut penetrates through the protruding part and extends into the inner cavity of the protruding part, and the lower end of the floating nut is provided with a supporting part; the pressure stud is arranged in the inner cavity of the floating nut and is in threaded fit connection with the internal thread of the floating nut, and the floating nut is driven to rotate by the rotation of the knob, so that the pressure stud in threaded fit connection with the floating nut moves downwards;

the spinning block is arranged around the floating nut, the inner side of the spinning block is abutted against the floating nut, the outer side of the spinning block is in threaded fit connection with the inner side of the protruding part, the lower end of the spinning block is supported by the supporting part, and the spinning block is provided with a material placing hole which penetrates through the spinning block from top to bottom;

the spring is sleeved outside the floating nut, the upper end of the spring is abutted against the top surface of the protruding part, and the lower end of the spring is abutted against the upper end of the spinning block;

the connecting piece is arranged in the object placing hole, the connecting piece does not ascend with the spinning block and only rotates with the spinning block, and the lower end of the connecting piece is fixedly connected with the pointer;

the pointer is horizontally arranged, one end of the pointer is fixedly connected with the connecting piece and rotates along with the connecting piece, and the other end of the pointer points to different pressure values on the dial plate.

3. The tourniquet of claim 1 or 2 wherein the time device is an electronic clock which starts timing when the tourniquet is attached to the patient and starts hemostasis and stops timing when the tourniquet is detached from the patient and stops hemostasis, the electronic clock displaying the length of hemostasis.

4. The tourniquet according to claim 1 or 2 wherein the time device is a clock dial, the clock dial is circular or disc-shaped and has a time scale, the clock dial is engaged in a groove of the knob and is rotatable relative to the groove, and the knob has an indication mark.

5. The tourniquet of claim 4 wherein the clock dial comprises a positioning member for positioning the clock dial relative to the knob to limit rotation of the clock dial relative to the knob during hemostasis.

6. The tourniquet of claim 2 wherein the floating nut is integral or integrally formed.

7. The tourniquet of claim 6 comprising a rotational locking means comprising a ring of V-shaped grooves disposed on the periphery of the knob and a spring loaded wedge pin secured to one side of the strap plate.

8. The tourniquet of claim 2 wherein the floating nut comprises an upper portion and a lower portion that are removably secured together, wherein the upper portion is not threaded and the lower portion is internally threaded to mate with the external threads of the pressure stud.

9. The tourniquet of claim 8 wherein the upper portion and the lower portion are snap connected, wherein the upper portion has a lower tooth and/or groove at a lower end and an upper groove and/or tooth at an upper end, wherein the upper portion and the lower portion are snap fixed by axial compression to engage the tooth in the groove or by axial tension to disengage the tooth from the groove.

10. The tourniquet of claim 1 or 2 wherein the strap is curved on both sides such that the inner surface of the strap conforms to the outer surface of the hand to be stopped.

Images