Novel tourniquet for dialysis patient

Abstract

The utility model relates to a tourniquet, in particular to a novel tourniquet for a dialysis patient, which comprises a tourniquet body and an adjusting device, the adjusting device comprises a base, a turntable and an adjusting cover, the tourniquet body is divided into a left tourniquet part and a right tourniquet part, the bottom surface of the base is attached to the arm of the patient, and the turntable is arranged on the base. The adjusting cover is in threaded connection with the base, the inner end of the tourniquet body is wound on the rotating disc, the outer end of the left tourniquet part is connected with the outer end of the right tourniquet part, and the rotating disc is located in an inner cavity of the base; by the adoption of the technical scheme, the problems that the tightness of an existing arm artery and vein tourniquet is inconvenient to adjust, and the tightness of the tourniquet cannot be well adjusted can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tourniquet, concretely relates to a new tourniquet convenient to adjust tightness for dialysis patient's arm vein and artery. BACKGROUND

[0002] The patient of nephrology department often needs to carry out dialysis, needs to carry out puncture on the vein and artery on the arm when the patient dialysis, needs to carry out compression hemostasis to the puncture point on the vein and artery after the patient dialysis, the tourniquet used at present is just a flat band, and the band is provided with nylon adhesive tape at both ends to fix, after the tourniquet is fixed at the puncture point on the vein and artery of the patient, needs to loosen the tourniquet a little every fifteen minutes, in this way, slowly loosen until completely loosen, this mode can prevent the blood in the vein and artery from suddenly loosening and flushing the blood hole of the puncture point, cause hemorrhage, but the tourniquet used at present is very inconvenient when loosening, and it is more troublesome to operate, there is also a tourniquet patent that can adjust the arm vein and artery puncture point on the current patent network, but the structure is too complex, and the tightness of the tourniquet cannot be well grasped during adjustment, therefore, the present application provides a new tourniquet convenient to adjust tightness for dialysis patient. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem that the tightness of the existing arm vein and artery tourniquet is inconvenient to adjust and the tightness of the tourniquet cannot be well grasped during adjustment.

[0004] The above technical purpose of the utility model is realized through the following technical scheme.

[0005] The novel tourniquet for dialysis patients comprises a tourniquet body and an adjusting device, the adjusting device comprises a base, a rotating disc and an adjusting cover, the tourniquet body is divided into a left tourniquet part and a right tourniquet part, the bottom surface of the base is attached to the arm of the patient, the upper section of the base is a cylindrical pipe with an open top and an inner cavity, the cylindrical pipe is provided with external threads, and the middle part of the bottom surface of the inner cavity is fixedly provided with a support column; the center of the rotating disc is provided with a rotating disc center hole, and the top surface of the rotating disc is annularly provided with driven meshing teeth; the rotating disc center hole is movably sleeved on the lower section of the support column, and the rotating disc is located in the inner cavity of the base; the lower section of the adjusting cover is a circular sleeve pipe with an open bottom and an inner cavity, the circular sleeve pipe is provided with internal threads, the center of the adjusting cover is provided with an adjusting cover center hole, the adjusting cover center hole is movably sleeved on the upper section of the support column, the top inner ring of the adjusting cover is provided with driving meshing teeth which are engaged with the driven meshing teeth, and the circular sleeve pipe is threadedly connected with the cylindrical pipe of the base; the side surface of the base is provided with a rope inlet, and the inner ends of the left tourniquet part and the right tourniquet part enter the rotating disc from the rope inlet and are fixedly wound thereon, and the outer ends of the left tourniquet part and the right tourniquet part are connected.

[0006] The novel tourniquet for dialysis patients adopts the technical scheme, the adjusting cover is rotated to drive the rotating disc to rotate, the pull rope is rotated and wound, the pressure of the tourniquet is adjusted, and the problems that the tightness of the existing arm arteriovenous tourniquet is inconvenient to adjust and the tightness of the tourniquet cannot be well grasped are solved.

[0007] Further, the inner circumferential ring of the cylindrical pipe of the base is annularly provided with a spring slot, the inner circumferential ring of the adjusting cover is provided with an elastic sheet, and when the circular sleeve pipe is threadedly connected with the cylindrical pipe of the base, the elastic sheet is elastically clamped in the spring slot.

[0008] In this way, on the one hand, the self-locking of the thread connection itself can prevent the rotating disc from rotating by itself, and on the other hand, the elastic sheet elastically clamped in the spring slot can better ensure the fixation of the rotating disc, and a certain rhythm sound is formed during rotation, which is convenient for the feeling of nurses and patients during operation.

[0009] Further, the connection mode of the outer ends of the left tourniquet part and the right tourniquet part is magic tape adhesion. This structure ensures the advantages of the original tourniquet magic tape fixation, and the tightness of the pressure can be fixed in advance.

[0010] Further, the shape of the transmission gear is limited, and such a gear is combined smoothly and stably, that is, the top surface of the driven meshing teeth and the bottom surface of the driving meshing teeth are both spiral inclined surfaces.

[0011] In order to better ensure the effect of rotation, the inner end of the left tourniquet part and the right tourniquet part is defined as a pull rope, the pull rope enters the fixed winding on the rotating disc from the rope inlet. The pull rope in this linear shape is more convenient to wind on the rotating disc than the flat tourniquet, and forms a hollow gap near the bleeding point, which is more conducive to observing the specific situation of the bleeding point.

[0012] Furthermore, two pull ropes are arranged on the side of the end head of the left tourniquet part, two pull ropes are arranged on the side of the end head of the right tourniquet part, two rope inlets are arranged on the left side of the base, two rope inlets are arranged on the right side of the base, and the four pull ropes are fixed on the rotating disc through the rope inlets. In this way, the stress is more stable.

[0013] In addition, the tourniquet further comprises a decorative cover, and the decorative cover is buckled on the center hole of the adjusting cover. In this way, not only is it beautiful, but it is also conducive to ensuring the cleanliness of the inside of the adjusting device.

[0014] The tourniquet using the technical solution is particularly suitable for hemodialysis, because the puncture needle for dialysis is generally 16G or 17G, the needle is relatively thick, the puncture needle eye is relatively large, and anticoagulants (heparin / low molecular) need to be used during the dialysis process, the blood vessel pressure is large, and repeated puncture is required. The technical solution can solve the problems of inconvenient adjustment of the tightness of the existing arm arteriovenous tourniquet and poor control of the tightness of the adjusted tourniquet. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a perspective structure exploded assembly view of the adjusting device of the embodiment;

[0016] Fig. 2 is a bottom view of the adjusting cover;

[0017] Fig. 3 is a plan view of the tourniquet body.

[0018] In the figure, 1 is a base, 11 is a rope inlet, 12 is a cylindrical pipe of the base, 13 is a bottom surface of the base, 14 is a spring slot, 2 is a rotating disc, 21 is a center hole of the rotating disc, 22 is a driven engagement tooth, 3 is an adjusting cover, 31 is a center hole of the adjusting cover, 32 is a driving engagement tooth, 33 is a round outer sleeve pipe, 34 is a decorative cover, 35 is a spring piece, 4 is a support column, 61 is a left tourniquet part, 62 is a right tourniquet part, 63 is a pull rope, and 64 is a magic tape. DETAILED DESCRIPTION

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] As Figs. 1-3As shown, a new type of tourniquet for dialysis patients comprises a tourniquet body and an adjusting device, the tourniquet body is divided into a left tourniquet part 61 and a right tourniquet part 62, the adjusting device comprises a base 1, a rotating disc 2 and an adjusting cover 3, the bottom surface 13 of the base 1 is in contact with the arm of the patient, the bottom surface 13 of the base is located between the inner ends of the left tourniquet part 61 and the right tourniquet part 62, the upper section of the base 1 is a cylindrical tube 12 with an open top and a base inner cavity, the cylindrical tube 12 is provided with external threads, and the middle part of the bottom surface of the base inner cavity is fixedly provided with a support column 4; the rotating disc 2 is centrally provided with a rotating disc center hole 21, and the top surface of the rotating disc 2 is annularly provided with driven meshing teeth 22; the rotating disc center hole 21 is movably sleeved on the lower section of the support column 4, and the rotating disc 2 is located in the base inner cavity; the lower section of the adjusting cover 3 is a circular outer sleeve tube 33 with an adjusting cover inner cavity and an open bottom, the circular outer sleeve tube 33 is provided with internal threads, the adjusting cover 3 is centrally provided with an adjusting cover center hole 31, the adjusting cover center hole 31 is movably sleeved on the upper section of the support column 4, the top inner ring of the adjusting cover 3 is provided with driving meshing teeth 32 which are in tooth engagement with the driven meshing teeth 22, and the circular outer sleeve tube 33 is threadedly connected with the cylindrical tube 12 of the base; the inner end head side of the left tourniquet part 61 and the inner end head side of the right tourniquet part 62 are both provided with two pull ropes 63, the left side and the right side of the base 1 are both provided with two rope inlet ports 11, and the four pull ropes 63 are respectively fixedly wound on the rotating disc 2 through the rope inlet ports 11, the outer ends of the left tourniquet part 61 and the right tourniquet part 62 are adhesively connected through magic tape, one end of the magic tape is a magic tape hook surface, and the other end is a magic tape fluff surface.

[0021] A spring groove 14 is annularly arranged on the inner periphery of the cylindrical tube 12 of the base, an elastic sheet 35 is annularly arranged on the inner periphery of the adjusting cover, and when the circular outer sleeve tube 33 is threadedly connected with the cylindrical tube 12 of the base, the elastic sheet 35 is elastically clamped in the spring groove 14; the top surface of the driven meshing teeth 22 and the bottom surface of the driving meshing teeth 32 are both helical inclined surfaces; and the adjusting cover 3 further comprises a decorative cover 34 which is buckled on the adjusting cover center hole 31.

[0022] The novel hemostasis band for dialysis patients of the utility model is used for compressing and hemostasis of the dialysis patients of the nephrology department after dialysis, first, after the puncture needle is pulled out, the large piece of sterile gauze is folded and placed on the bottom surface of the base, corresponding to covering the bleeding point, then the magic tape of the left hemostasis band part and the right hemostasis band part is opened and wound around the arm, the magic tape is tightly adhered after preliminary pre-tightening, then, according to the specific condition of the bleeding point, the adjusting cover is rotated downward, since two pull ropes are arranged on the side of the end head of the left hemostasis band part, two pull ropes are also arranged on the side of the end head of the right hemostasis band part, the left side of the base is provided with two rope inlet ports, the right side of the base is also provided with two rope inlet ports, the four pull ropes are fixed on the rotating disc through the rope inlet ports respectively, the pull rope is usually a circular belt, on the one hand, it is convenient to fix and wind on the rotating disc, on the other hand, since it is also relatively hollow, it is more convenient to observe the actual condition of the bleeding point compared with the commonly used red and blue elastic hemostasis band, so that the pre-tightening force and the pressure force of the hemostasis band body are better adjusted; since the screw thread rotation, especially the fine thread has good self-locking property, during the screw thread tightening process, when the circular outer sleeve pipe is threadedly connected with the cylindrical pipe of the base, the driving engagement tooth and the driven engagement tooth are toothedly engaged with each other, the adjusting cover drives the rotating disc to rotate, so that the hemostasis band is pulled tighter and tighter, the hemostasis band pressure is increased, and vice versa. In this way, when the hemostasis band pressure is adjusted, the entire magic tape of the hemostasis band does not need to be loosened and re-pasted, bleeding of the bleeding point caused by the pressure of the bleeding point being suddenly reduced after the entire magic tape is loosened is avoided, the recovery of the patient is not affected, the pressure of the hemostasis band is directly adjusted by the adjusting device, whether the pressure is increased or decreased, the force is gradually and slightly changed, generally after 10-15 minutes, whether the puncture point bleeds or exudes blood is observed, if there is bleeding, the hemostasis band pressure is increased again, if there is no bleeding, the hemostasis band can be loosened after half an hour, but the patient should not move violently to prevent bleeding again.

[0023] The hemostasis band using the technical scheme is particularly suitable for blood dialysis, since the puncture needle of dialysis is generally 16G or 17G, the needle head is thick, the puncture needle eye is large, and the anticoagulant (heparin / low molecule) needs to be used during dialysis, the blood vessel pressure is large, and the puncture is repeated, etc. The technical scheme can solve the problems that the tightness of the existing arm arteriovenous hemostasis band is inconvenient to adjust and the tightness of the hemostasis band cannot be well mastered.

[0024] If the active engagement gear and driven engagement gear straight tooth sleeve is adopted, usually the height of the active engagement tooth is less than the height of the driven engagement tooth, so in the process of rotating down, as the circular outer sleeve tube is in the process of descending, the rotating force increases, the height of the active engagement tooth and the height of the driven engagement tooth contact surface more and more, so the strength requirement of the gear made of plastic is not high. If the active engagement gear and driven engagement gear helical tooth engagement is adopted, the top surface of the driven engagement tooth and the bottom surface of the active engagement tooth are both helical inclined surface, so in the process of rotating down, the helical tooth between the inclined surfaces also gradually increases the contact surface, so the strength requirement of the gear made of plastic is not high, and vice versa, so the compression force is adjusted by the thread rotation, which is more stable and more accurate.

[0025] In addition, in addition to the self-locking of the threaded connection itself to avoid the rotation of the rotating disc, the elastic sheet of metal material is elastically clamped in the elastic sheet groove, which can better ensure the fixation of the rotating disc, form a certain rhythm sound when rotating, and facilitate the feeling of nurses and patients when operating, and the stable engagement of the active engagement tooth and the driven engagement tooth is also conducive to stable rotation. The utility model realizes the premise of the tightness of the tourniquet, adopts simpler parts, the overall structure is simpler, and the assembly efficiency is higher.

[0026] When compression is not needed, the magic tape can be directly torn off to unload the force, and of course the reverse threaded mode can also be used.

[0027] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications without creative contribution after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A novel tourniquet for dialysis patients, comprising a tourniquet body, characterized in that: The tourniquet body is divided into a left tourniquet section and a right tourniquet section, and also includes an adjustment device, which includes a base, a turntable, and an adjustment cover. The bottom surface of the base fits against the patient's arm. The upper section of the base is a cylindrical tube with an opening at the top and an inner cavity. The cylindrical tube is provided with external threads. A support column is fixed in the middle of the bottom surface of the inner cavity of the base. The turntable has a central hole at its center, and the top surface of the turntable is provided with driven meshing teeth; the central hole of the turntable is movably sleeved on the lower section of the support column, and the turntable is located in the inner cavity of the base; The lower section of the adjusting cover is a circular outer sleeve with an opening at the bottom and an inner cavity for adjusting cover. The circular outer sleeve is provided with internal threads. The adjusting cover has a center hole at its center. The center hole of the adjusting cover is movably sleeved on the upper section of the support column. The top inner ring of the adjusting cover is provided with an active meshing tooth that meshes with the driven meshing tooth. The circular outer sleeve is threadedly connected to the cylindrical tube of the base. The base has a rope inlet on its side. The inner ends of the left and right tourniquet sections enter through the rope inlet and are fixedly wound around the turntable. The outer ends of the left and right tourniquet sections are connected.

2. The novel tourniquet for dialysis patients as described in claim 1, characterized in that: A spring groove is provided around the inner circumference of the cylindrical tube of the base, and an elastic piece is provided around the inner circumference of the adjusting cover. When the outer cylindrical tube is threadedly connected to the cylindrical tube of the base, the elastic piece is elastically engaged in the spring groove.

3. The novel tourniquet for dialysis patients as described in claim 1, characterized in that: The outer ends of the left and right tourniquet portions are connected by Velcro.

4. A novel tourniquet for dialysis patients as described in claim 1, characterized in that: The top surface of the driven meshing tooth and the bottom surface of the active meshing tooth are both spiral inclined surfaces.

5. A novel tourniquet for dialysis patients as described in claim 1, characterized in that: The inner ends of the left and right tourniquet sections are pull ropes, which enter from the rope inlet and are fixedly wound around the turntable.

6. A novel tourniquet for dialysis patients as described in claim 5, characterized in that: The left tourniquet section has two pull ropes on its end side, the right tourniquet section has two pull ropes on its end side, the left side of the base has two rope inlets, and the right side of the base has two rope inlets. All four pull ropes pass through the rope inlets and are fixed to the turntable.

7. A novel tourniquet for dialysis patients as described in claim 1, characterized in that: It also includes a decorative cover that snaps onto the center hole of the adjustment cover.

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