Rapid and automatic blood expelling device for lower limbs

Abstract

The invention relates to a rapid and automatic blood expelling device for lower limbs, which belongs to the technical field of medical instruments and comprises a blood expelling base, an upper turning cover, a locking strip and a pull rope progressive blood expelling structure. According to the rapid automatic blood expelling device, by arranging the rapid automatic blood expelling device which is simultaneously provided with an integrated automatic extrusion blood expelling structure, a pull rope type continuous progressive extrusion structure and a soft tissue anti-pinch-damage structure, the automatic blood expelling structure that a pull rope is matched with an elastic bandage is utilized, and continuous pressure attaching to limbs is facilitated to conduct compression blood expelling; the flexible blood expelling structure guarantees the safety of limb soft tissues and does not cause the injury of excessive overstock of hard objects, and the motor automatically winds and tightens the rope to provide the compression force, so that the operation is simple and easy; and it is guaranteed that the compression force is gradually and stably increased until the continuous compression force of a target value from the telecentric end to the proximal end is increased, and smooth compression blood expelling can be achieved to prevent backflush.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a device for rapid and automatic blood removal from lower limbs. Background Art

[0002] In the case of major trauma resulting in massive blood loss, it is necessary to stop bleeding and replenish blood for the injured patient in time to improve the success rate of treatment. When the injured patient suffers from massive ischemia and is outdoors or cannot be quickly provided with blood replenishment, compression is generally used from the human limbs to press the blood stored in the limbs and the circulating blood into the heart and brain, thereby ensuring the patient's life safety.

[0003] In the prior art, blood expulsion methods include elastic band winding blood expulsion and block compression of the trunk in turn to expel blood. The elastic band winding blood expulsion method requires the patient to raise the patient's limbs above the heart level, and then tighten the blood expulsion belt from the distal end of the limb to the proximal end, and wrap it to the end of the limb, so that the blood in the limb can be squeezed from the limb to the heart. Alternatively, a modular extrusion method is used, that is, multiple surrounding extrusion blocks are closed in turn and the closed extrusion force is continuously applied to fix and squeeze the limb, and the extrusion blocks are locked around the limbs in turn from the distal end of the limb, so that the blood is squeezed and fixed so that the blood is squeezed into the heart.

[0004] The elastic band wrapped blood-driving in the existing technology requires doctors with rich rescue experience, because it is necessary to manually judge whether the pressure of the blood-driving band is appropriate. If the pressure is too low, it cannot effectively drive blood. Otherwise, it will cause compressive damage to the tissue. In addition, the operation process is complicated, which takes up precious human resources during emergency treatment. The method of sequentially compressing the trunk to drive blood by different plates first has the problem of discontinuous compression and blood-driving. When each independent plate drives blood, the blood will be squeezed to both sides at the same time, resulting in partial blood return to the squeezed area and even damage to the middle blood vessels due to the pressure impact on both sides, which will harm the human body. In addition, the sequential squeezing operation of the modular type is relatively complicated, and it is necessary to assemble and clamp the operation independently in sequence. Once the pressure value of any plate in the middle does not rise continuously with other plates to produce a pressure difference, it will cause blood impact between different modules, which will eventually lead to blood-driving failure. Furthermore, in modular extrusion, spaces are often reserved for soft tissue to be squeezed out so that the squeezed flesh and blood tissue can be exposed outwards. However, the volumes of soft tissue squeezed out of different modules are different, resulting in discontinuity in the spaces between different extrusion modules, forming a gradient of variation, which causes edge bulge-like compression damage to the soft tissue at the junction of the modules. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose a rapid automatic blood drive device for lower limbs. By setting a rapid automatic blood drive device with an integrated automated extrusion blood drive structure, a pull-rope continuous progressive extrusion structure and a soft tissue anti-pinching structure, the problem of the prior art lacking an integrated automated continuous and progressive extrusion blood drive structure that can provide pressure force, resulting in complicated operation and reduced rescue and treatment efficiency, and the blood drive extrusion force does not change smoothly and continuously, thereby forming a pressure difference, resulting in different extrusion differences in the limbs and causing damage to blood vessels, as well as discontinuous extrusion deformation of soft tissues and causing soft tissue damage.

[0006] The present invention is achieved through the following technical solutions:

[0007] A device for rapid automatic blood expulsion of lower limbs comprises a blood expulsion base, wherein an upper flip cover is hingedly provided on the left side of the blood expulsion base by rotating a hinge block, and the right side of the blood expulsion base is locked with the upper flip cover by a locking strip, and a pull rope progressive blood expulsion structure is fixedly provided on the upper flip cover.

[0008] Furthermore, the upper flip cover includes a rigid bracket, an elastic blood-driving belt is fixedly connected in the middle of the rigid bracket, the middle part of the elastic blood-driving belt is connected by a tightening rope, and the pull-rope progressive blood-driving structure is composed of a rotary motor fixedly arranged at the distal end of the rigid bracket and the tightening rope, and both ends of the tightening rope are fixedly connected by the rotary motor.

[0009] Furthermore, a pressure sensor is fixedly disposed at the proximal end of the rigid support.

[0010] Furthermore, the locking strip includes a buckle, a cover strip and a locking strip, the buckle is evenly fixed on the right side of the rigid bracket, a locking strip groove is opened on the right side of the blood-removal base, the cover strip is fixed on the locking strip groove by screws, a locking strip assembly groove is formed between the cover strip and the locking strip groove, and the locking strip is embedded in the locking strip assembly groove.

[0011] Furthermore, the locking bar comprises a locking bar body, the distal end face of the locking bar body is fixedly arranged as an elastic extrusion end face, the proximal end of the locking bar body is fixedly arranged with a pull handle, and locking bent feet are evenly arranged on the locking bar body.

[0012] Furthermore, a snap-in groove for snapping the buckle is provided at the upper end of the cover strip, a bent leg fixing hole is provided in the middle of the buckle, and a pressing spring in contact with the elastic extrusion end face is provided at the distal end of the lock strip assembly groove.

[0013] Furthermore, flexible gaskets are fixedly arranged on the inner sides of the ports on both sides of the blood-driving base and the inner sides of the ports on both sides of the upper flip cover.

[0014] Furthermore, a waterproof coating is provided on the surface of the elastic blood-removing belt.

[0015] The beneficial effects of the present invention are:

[0016] The present invention provides a rapid automatic blood-driving device that simultaneously has an integrated automated extrusion and blood-driving structure, a pull-rope continuous progressive extrusion structure, and a soft tissue anti-pinching structure. The automated blood-driving structure using a pull-rope in conjunction with an elastic bandage is advantageous for achieving continuous pressure fitting of the limb for compression and blood-driving. The flexible blood-driving structure ensures the safety of the limb's soft tissue and does not cause damage due to excessive accumulation of hard objects. The motor automatically tightens the rope to provide compression force, which is simple and easy to operate. The progressive pull-rope compression and blood-driving with a pressure sensor ensures that the compression force gradually and steadily increases until the target value is reached. The continuous compression force increase from the distal end to the proximal end can smoothly compress and drive blood to prevent backwashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall assembly expansion diagram;

[0018] Figure 2 This is the left side view of the overall closed assembly;

[0019] Figure 3 This is the right side view of the overall closed assembly;

[0020] Figure 4 This is a structural diagram of the upper flip cover;

[0021] Figure 5 This is the rear view of the overall closed assembly;

[0022] Figure 6 This is a bottom view of the overall closed assembly;

[0023] Figure 7 The structure diagram of the lock bar;

[0024] Figure 8 This is an enlarged view of area I.

[0025] Description of reference numerals:

[0026] 1. Blood-removing base; 2. Rotating hinge block; 3. Upper flip cover; 4. Rigid bracket; 5. Elastic blood-removing belt; 6. Tightening rope; 7. Rotating motor; 8. Buckle; 9. Cover strip; 10. Locking strip; 11. Locking strip groove; 12. Screw; 13. Locking strip assembly groove; 14. Locking strip body; 15. Elastic extrusion end face; 16. Pull handle; 17. Locking bent foot; 18. Snap into groove; 19. Press spring; 20. Pressure sensor; 21. Distal end of blood-removing base; 22. Proximal end of blood-removing base; 23. Distal end of upper flip cover; 24. Proximal end of upper flip cover; 25. Fixed hole for bent foot. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0032] like Figure 1-8 As shown, an embodiment of the present invention is: a rapid automatic blood-dripping device for lower limbs, comprising a blood-dripping base 1, an upper flap 3 is hingedly provided on the left side of the blood-dripping base by rotating a hinge block 2, the upper flap comprises a rigid bracket 4, two left and right elastic blood-dripping belts 5 are fixedly connected in the middle of the rigid bracket, a tightening rope 6 is inserted and connected in the middle of the elastic blood-dripping belt, a rotary motor 7 is fixedly provided at the distal end of the rigid bracket, and both ends of the tightening rope are fixedly connected by the rotary motor for rotating and tightening the tightening rope.

[0033] The right side of the blood-removing base is connected to the upper flip cover by a locking strip, and the locking strip includes a buckle 8, a cover strip 9 and a lock strip 10, wherein the buckle is evenly fixed on the right side of the rigid bracket, a lock strip groove 11 is opened on the right side of the blood-removing base, and the cover strip is fixed on the lock strip groove by a screw 12, and a lock strip assembly groove 13 is formed between the cover strip and the lock strip groove, and the lock strip is embedded in the lock strip assembly groove. The lock strip includes a lock strip body 14, and an elastic extrusion end face 15 is fixedly set at the distal end face of the lock strip body, and a pull handle 16 is fixedly set at the proximal end of the lock strip body, and locking bent feet 17 are evenly set on the lock strip body. A snap-in groove 18 for snapping in is provided at the upper end of the cover strip, a bent leg fixing hole 25 is provided in the middle of the buckle for locking and fixing the bent leg of the lock, a pressing spring 19 in contact with the elastic extrusion end face is provided at the distal end of the lock strip assembly groove, and pressure sensors 20 are fixedly provided at the distal end 21 of the hemodialysis base, the proximal end 22 of the hemodialysis base, the distal end 23 of the upper flip cover and the proximal end 24 of the upper flip cover.

[0034] When implementing this embodiment, the limb of the injured patient is first placed in the blood-dripping base, and then the patient's skin surface is disinfected, and the upper flip cover is rotated around the hinge block to contact and engage with the blood-dripping base, and the entire lock bar body is first pressed against the distal end side by the pull handle, so that the elastic extrusion end face of the lock bar squeezes the pressing spring, and then the locking bent leg is retracted and leaks out of the insertion hole, and then the buckle is inserted into the insertion hole by rotation, and then the handle is pulled appropriately, and the lock bar is rebounded due to the resilience of the pressing spring so that the locking bent leg is inserted into the insertion groove, thereby completing the assembly and locking of the limb. Then, the rotary motor is started so that the rotary motor drives the tightening rope to gradually retract and tighten, and drives the elastic blood-dripping belt to gradually retract and tighten from the distal end to the inlet end, so as to achieve the purpose of continuous and gradual blood-dripping, and the pressure value transmitted by the pressure sensor is synchronously monitored, and when the pressure value reaches the target value, the tightening rope is stopped to maintain the tightening state.

[0035] This embodiment provides a rapid automatic blood-driving device that has an integrated automated extrusion and blood-driving structure, a pull-rope continuous progressive extrusion structure, and a soft tissue anti-pinching structure. The automated blood-driving structure using a pull-rope in conjunction with an elastic bandage is advantageous for achieving continuous pressure fitting of the limb for compression and blood-driving. The flexible blood-driving structure ensures the safety of the limb's soft tissue and does not cause damage due to excessive accumulation of hard objects. The motor automatically tightens the rope to provide compression force, which is simple and easy to operate. The progressive pull-rope compression and blood-driving with a pressure sensor ensures that the compression force gradually and steadily increases until the target value is reached. The continuous increase in compression force from the distal end to the proximal end can smoothly compress and drive blood to prevent backwashing.

[0036] In this embodiment, flexible gaskets are fixedly provided on the inner sides of the ports on both sides of the blood-removal base and the inner sides of the ports on both sides of the upper flip cover, which is beneficial to avoid discomfort caused by hard interfaces to patients when they wear the blood-removal base and alleviate the pain of patients.

[0037] In this embodiment, a waterproof coating is provided on the surface of the elastic blood-driving belt, which helps to prevent a large amount of liquid from penetrating into the injured area during use, thereby affecting the stretchability of the elastic blood-driving belt.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A device for rapid and automatic blood removal from lower limbs, characterized in that: It comprises a blood-dripping base, wherein an upper flip cover is hingedly arranged on the left side of the blood-dripping base by rotating a hinge block, and the right side of the blood-dripping base is locked with the upper flip cover by a locking strip, and the upper flip cover is fixedly provided with a pull-rope progressive blood-dripping structure.

2. The device for rapid and automatic blood removal from lower limbs according to claim 1, characterized in that: The upper flip cover includes a rigid bracket, an elastic blood-driving belt is fixedly connected in the middle of the rigid bracket, the middle part of the elastic blood-driving belt is connected by a tightening rope, and the pull-rope progressive blood-driving structure is composed of a rotary motor fixedly arranged at the distal end of the rigid bracket and the tightening rope, and both ends of the tightening rope are fixedly connected by the rotary motor.

3. A device for rapid and automatic blood removal from lower limbs according to claim 2, characterized in that: A pressure sensor is fixedly arranged at the proximal end of the rigid support.

4. The device for rapid and automatic blood removal from lower limbs according to claim 2, characterized in that: The locking strip includes a buckle, a cover strip and a locking strip. The buckle is evenly fixed on the right side of the rigid bracket. A locking strip groove is opened on the right side of the blood-removal base. The cover strip is fixed on the locking strip groove by screws. A locking strip assembly groove is formed between the cover strip and the locking strip groove. The locking strip is embedded in the locking strip assembly groove.

5. The device for rapid and automatic blood removal from lower limbs according to claim 4, characterized in that: The lock bar comprises a lock bar body, a distal end face of the lock bar body is fixedly arranged as an elastic extrusion end face, a proximal end of the lock bar body is fixedly arranged with a pull handle, and locking bent feet are evenly arranged on the lock bar body.

6. The device for rapid and automatic blood removal from lower limbs according to claim 5, characterized in that: The upper end of the cover strip is provided with a snap-in slot for the buckle to snap in, the middle of the buckle is provided with a bent foot fixing hole, and the distal end of the lock strip assembly slot is provided with a pressing spring in contact with the elastic extrusion end surface.

7. The device for rapid automatic blood removal from lower limbs according to claim 1, characterized in that Flexible gaskets are fixedly arranged on the inner sides of the ports on both sides of the blood-driving base and the inner sides of the ports on both sides of the upper flip cover.

8. The device for rapid automatic blood removal from lower limbs according to claim 1, characterized in that The surface of the elastic blood-removing belt is provided with a waterproof coating.

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