A tourniquet for the hand and foot

Abstract

The application relates to the technical field of medical devices, and provides a hand and foot hemostasis clasp ring, which comprises a flexible ring body, an adaptive adjusting port is arranged on the annular track of the flexible ring body, a variable part and a locking assembly are arranged in the adaptive adjusting port, two ends of the variable part are connected with two ends of the adaptive adjusting port, the locking assembly comprises a lock buckle connected with one end of the adaptive adjusting port, an inner side end of the lock buckle is provided with a top pressing type lock plate, an outer side end of the lock buckle is connected with a lock tongue, the locking assembly further comprises a lock belt connected with the other end of the adaptive adjusting port, a free end of the lock belt is inserted into the lock buckle, and the tail end of the lock tongue is abutted against the back surface of the lock belt, so that not only a locking effect is achieved, but also back supporting force is provided when a cutter forcibly cuts the lock belt. One hand can complete the sleeving, tensioning and locking of the lock belt, and the application is especially suitable for self-help or narrow space rescue, and whether locking, loosening or forced cutting is carried out, the operation is convenient.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a hemostatic clasp for the hands and feet. Background Technology

[0002] In emergency situations such as first aid, outdoor sports, industrial accidents, and natural disasters, severe arterial or venous bleeding in the hands and feet (especially the wrists, ankles, upper arms, and groins) is an extremely dangerous and common occurrence. Quickly and effectively controlling the bleeding is the crucial first step in saving lives. Traditional tourniquets (such as cloth strips, rubber tubing, and CAT-type rotary tourniquets) are commonly used in these situations. They typically work by wrapping around the limb and applying sufficient circumferential pressure to compress the blood vessels and achieve hemostasis.

[0003] However, the traditional tourniquet technology in the present technology is cumbersome in terms of wrapping, knotting and tightening when a single person is trying to save themselves or when the rescuer is in a state of tension, which delays the golden rescue time. For limbs of different thicknesses, it is necessary to frequently adjust or change tourniquets of different sizes. Moreover, in extreme situations (such as the occurrence of varicose veins or cramps caused by incorrect binding), when it is necessary to reposition the tourniquet, it cannot be quickly removed from the limb. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a hand and foot hemostatic locking ring, comprising a flexible ring body with an adjustment port on its annular trajectory. The adjustment port contains a variable element and a locking assembly. The variable element is connected to both ends of the adjustment port. The locking assembly includes a latch connected to one end of the adjustment port, a pressure-type locking plate on the inner end of the latch, and a locking tongue at the outer end of the latch. The locking assembly also includes a locking strap connected to the other end of the adjustment port. The free end of the locking strap is inserted into the latch, and the end of the locking tongue abuts against the back of the locking strap. A first locking structure is provided between the locking tongue and the back of the locking strap to lock the back of the locking strap. This first locking structure can drive the locking tongue to rotate, thereby quickly releasing the locking force. The end of the pressure-type locking plate abuts against the inner surface of the locking strap, and a second locking structure is provided between the locking plate and the inner surface of the locking strap to lock the inner surface of the locking strap. This second locking structure can quickly cut the locking strap.

[0005] As a further preferred embodiment, the first locking structure includes a plurality of locking bars disposed on the back of the locking band, the locking bars forming a locking relationship with the latch, the first locking structure also includes a spike disposed on the latch, the latch is inclined toward the traction direction of the locking band and locks the locking bars that enter the latch, the spike is inclined in the opposite direction to the latch and approaches the locking bars that are about to enter the latch.

[0006] As a further preferred embodiment, a shallow groove is formed on the back of the lock band along its length direction, and a plurality of lock bars are formed equidistantly in the shallow groove along the length direction of the lock band.

[0007] As a further preferred embodiment, the second locking structure includes a plurality of slots provided on the inner surface of the lock band, and the second locking structure also includes a sliding groove formed on the buckle, the top-pressing locking plate is fitted in the sliding groove, one end of the top-pressing locking plate facing the inner surface of the lock band is provided with a cutter, the cutter and the slot are engaged, and the part of the top-pressing locking plate fitted in the sliding groove protrudes from both sides of the buckle.

[0008] As a further preferred embodiment, each of the card slots is positioned back-to-back between the two locking bars.

[0009] As a further preferred embodiment, the latch is provided with a hinge seat, and the adapter end of the latch is equipped with a rotating shaft. The two ends of the rotating shaft are connected to the hinge seat. A torsion spring is sleeved on the rotating shaft. The two free ends of the torsion spring are respectively abutted and fixed on the hinge seat and the latch. The rotation angle of the latch is limited to the inner side of the latch by the torsion spring.

[0010] As a further preferred embodiment, the latch is formed with a limiting baffle in one piece, and the limiting baffle extends horizontally and intercepts the bottom surface of the latch.

[0011] As a further preferred embodiment, the inner surface of the flexible ring is an arc-shaped contact surface, and the variable element is a telescopic corrugated section disposed within the adaptation adjustment port of the flexible ring, the telescopic corrugated section being located within the inner perimeter of the locking strap and the buckle.

[0012] The advantages of this invention compared to the prior art are:

[0013] 1. A first locking structure and a second locking structure are set inside the latch. The first and second locking structures provide double protection against accidental loosening of the lock band. The first locking structure locks the band in place, with the outer end of the latch tongue connecting to the latch and its end pressing against the back of the lock band, forming a locking relationship between the first locking structure and the back of the lock band. Secondly, the inner surface of the lock band is locked by the end of the pressure-type locking plate through the second locking structure. The lock band tightens the flexible ring, and the first and second locking structures create two locking positions on the inner and outer sides of the lock band, preventing the lock band from loosening.

[0014] 2. The second locking structure not only provides strong anti-loosening locking force but also has the ability to quickly cut the locking strap. In case of sudden situations at the binding location, such as excessive clotting or varicose veins requiring emergency release of hemostasis, the second locking structure can be used to quickly push the top-pressure locking plate. The cutter at the end of the top-pressure locking plate will quickly cut the locking strap. The locking tongue rests against the back side of the locking strap, not only providing a locking function but also providing back support when the cutter forcefully cuts the strap. The locking strap can be easily slipped on and tightened with one hand to apply pressure and lock, making it particularly suitable for self-rescue or rescue in confined spaces. Whether locking, loosening, or forcibly cutting, it is easy to operate. Attached Figure Description

[0015] Figure 1 A side view of a hand and foot hemostatic clamp provided for an embodiment of the present invention;

[0016] Figure 2 A three-dimensional axial view of a hand and foot hemostatic clamp provided for an embodiment of the present invention;

[0017] Figure 3 A top view of a hand and foot hemostatic clamp provided for an embodiment of the present invention;

[0018] Figure 4 A hand and foot hemostatic clamp provided for embodiments of the present invention is made of Figure 3 A schematic diagram of the fully dissected section A.

[0019] Figure 5 A hand and foot hemostatic clamp provided for embodiments of the present invention is made of Figure 4 Enlarged schematic diagram of section C;

[0020] Figure 6 A three-dimensional schematic diagram of a hand and foot hemostatic ring from another isometric perspective, provided for an embodiment of the present invention;

[0021] Figure 7 A hand and foot hemostatic clamp provided for embodiments of the present invention is made of Figure 6 An enlarged schematic diagram of section B.

[0022] In the diagram: 1. Flexible ring; 2. Adjustable port; 3. Locking buckle; 4. Top-pressing locking plate; 5. Locking tongue; 6. Locking band; 7. First locking structure; 8. Second locking structure; 9. Locking bar; 10. Spike; 11. Shallow groove; 12. Slot; 13. Slide groove; 14. Cutting blade; 15. Hinge seat; 16. Rotating shaft; 17. Torsion spring; 18. Restricting baffle; 19. Telescopic corrugated section. Detailed Implementation

[0023] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] In one implementation, such as Figures 1-7 As shown:

[0025] This embodiment provides a hand and foot hemostatic locking ring, including a flexible ring body 1. An adjustment port 2 is provided on the annular trajectory of the flexible ring body 1. A variable component and a locking assembly are provided in the adjustment port 2. The two ends of the variable component are connected to the two ends of the adjustment port 2. The locking assembly includes a latch 3 connected to one end of the adjustment port 2. A top-pressing locking plate 4 is provided on the inner end of the latch 3. A locking tongue 5 is connected to the outer end of the latch 3. The locking assembly also includes a locking strap 6 connected to the other end of the adjustment port 2. The free end of the locking strap 6 is inserted into the latch 3. The end of the locking tongue 5 abuts against the back of the locking strap 6. A first locking structure 7 is provided between the locking tongue 5 and the back of the locking strap 6 to lock the back of the locking strap 6. The first locking structure 7 can drive the locking tongue 5 to rotate to quickly release the locking force. The end of the top-pressing locking plate 4 abuts against the inner surface of the locking strap 6. A second locking structure 8 is provided between the top-pressing locking plate 4 and the inner surface of the locking strap 6 to lock the inner surface of the locking strap 6. The second locking structure 8 can quickly cut the locking strap 6.

[0026] During the procedure, the rescuer places the flexible ring 1 onto the limb proximal to the bleeding point, and pulls the locking strap 6 with one hand. The free end of the locking strap 6 is pulled and locked along the buckle 3. When the locking strap 6 is pulled, causing the flexible ring 1 to contract and apply hemostatic pressure to the limb, the locking strap 6 is doubly locked. This double locking effect is achieved through the following means:

[0027] Firstly, the first layer of locking (back locking): the back of the locking strap 6 is locked by the end of the locking tongue 5 through the first locking structure 7. The outer end of the locking tongue 5 is connected to the buckle 3, and its end presses against the back of the locking strap 6, forming a locking relationship between the first locking structure 7 and the back of the locking strap 6. Secondly, the second layer of locking (inner locking): the inner surface of the locking strap 6 is locked by the end of the pressing locking plate 4 through the second locking structure 8. After the flexible ring 1 is tightened by the locking strap 6, the first locking structure 7 and the second locking structure 8 form two locking positions on the inner and outer sides of the locking strap 6, preventing the locking strap 6 from loosening. In this emergency treatment process, the patient only needs to quickly pull the locking strap 6 to complete the double locking action simultaneously, shortening the self-rescue time and improving the survival rate. The method of using traction to tighten the flexible ring 1 for binding is applicable to limbs of different thicknesses, without the need for frequent adjustment or replacement of different sizes of tourniquets, and can be completed quickly in extreme environments.

[0028] In addition, the top-pressing locking plate 4 is connected to the inner end of the buckle 3, and its end presses against the inner surface of the locking strap 6, which is the core component for locking the inner side of the locking strap 6. The second locking structure 8 not only provides a strong anti-loosening locking force, but its core feature is that it has the ability to quickly cut the locking strap 6. As the final safety guarantee, when there is an emergency at the binding position, such as coagulation or excessive varicose vein reaction, and it is necessary to release the hemostasis urgently, the second locking structure 8 is operated to quickly push the top-pressing locking plate 4, and the cutter 14 at the end of the top-pressing locking plate 4 is used to quickly cut the locking strap 6. At this time, the locking tongue 5 is pressed against the back side of the locking strap 6, which not only plays a locking role, but also provides back support when the cutter 14 forcefully cuts the locking strap 6. After the locking strap 6 is quickly cut, its locking force on both sides fails at the same time. The hemostatic ring opens completely instantly, the pressure is released completely instantly, and the emergency is quickly resolved. The locking strap can be put on and tightened with one hand to complete the pressure locking, which is especially suitable for self-rescue or rescue in confined spaces.

[0029] The first locking structure 7 and the second locking structure 8 provide strong anti-loosening locking to both sides of the locking band 6, providing double protection against accidental loosening of the locking band 6. (Operating the first locking structure 7 can drive the locking tongue 5 to rotate) The double locking effect is released simultaneously, and in the event of an accident, the locking band 6 can be forcibly cut off by the same force operation. Whether locking, loosening or forcibly cutting off, it is easy to operate.

[0030] The tooling principle and supporting structure of the first locking structure 7 and the second locking structure 8 are described as follows: Figures 5 to 7 As shown, the first locking structure 7 includes several locking bars 9 disposed on the back of the locking band 6. The locking bars 9 form a locking relationship with the locking tongue 5. The first locking structure 7 also includes a spike 10 disposed on the locking tongue 5. The locking tongue 5 is inclined in the traction direction of the locking band 6 and locks the locking bars 9 that enter the latch 3. The spike 10 is inclined in the opposite direction to the locking tongue 5 and approaches the locking bars 9 that are about to enter the latch 3. A shallow groove 11 is opened on the back of the locking band 6 along its length direction. Several locking bars 9 are equidistantly formed in the shallow groove 11 along the length direction of the locking band 6. A hinge seat 15 is provided in the latch 3. A rotating shaft 16 is installed at the connecting end of the locking tongue 5. The two ends of the rotating shaft 16 are connected to the hinge seat 15. A torsion spring 17 is sleeved on the rotating shaft 16. The two free ends of the torsion spring 17 are respectively abutted and fixed on the hinge seat 15 and the locking tongue 5. The rotation angle of the locking tongue 5 is limited to the inner side of the latch 3 by the torsion spring 17. The second locking structure 8 includes several slots 12 on the inner surface of the lock band 6. The second locking structure also includes a sliding groove 13 on the buckle 3. The top-pressing locking plate 4 is fitted in the sliding groove 13. The end of the top-pressing locking plate 4 facing the inner surface of the lock band 6 is provided with a cutter 14. The cutter 14 and the slots 12 form a snap-fit ​​relationship.

[0031] The locking bars 9 are several strips arranged along the back of the locking band 6, thus creating multiple locking positions between the locking band 6 and the locking tongue 5. By pulling the locking band 6 and dragging the flexible ring 1 through the adjustment opening 2, the locking action of the locking bars 9 at different positions with the locking tongue 5 locks the outside of the locking band 6. Similarly... Figure 1 , Figure 5 As shown, several slots 12 are provided on the inner surface of the locking band 6 to form multi-position locking with the cutter 14.

[0032] The top-pressing locking plate 4 is set in the buckle 3 in the manner of sliding groove 13, which ensures that the top-pressing locking plate 4 moves more smoothly relative to the locking band 6.

[0033] In use, as the free end of the locking strap 6 is pulled outward along the buckle 3 until the locking range between the locking strap 6 and the flexible ring 1 meets the binding requirements of the limb, a locking bar 9 at a suitable position will be pulled into the buckle 3. This locking bar 9 will then push the end of the locking tongue 5 and the spike 10 into the advancing side of the locking tongue 5. As the next locking bar 9 advances to near the spike 10, the locking tongue 5 rotates clockwise and its bottom surface disengages from the limiting baffle 18. The locking tongue 5 also drives the rotating shaft 16 to rotate clockwise, which in turn drives the torsion spring 17 to expand radially and store elastic force. After this adjustment is completed, the locking strap 6 is released, the traction force on the locking strap 6 disappears, and the torsion spring 17 rebounds radially to release the elastic force. This causes the rotating shaft 16 to rotate counterclockwise, which in turn causes the locking tongue 5 to rotate counterclockwise onto the limiting baffle 18. Simultaneously, the locking tongue 5 and the spike 10 are locked between the previous locking bar 9 and the next locking bar 9, completing the rapid locking of the outer side of the locking band 6. At the same time, the slot 12 on the inner side of the locking band 6 is engaged with the end of the cutter 14, completing the rapid locking of the inner side of the locking band 6. The limiting baffle 18 restricts the counterclockwise rotation of the locking tongue 5, thus locking the locking tongue 5 when the locking band 6 loses its traction. The spike 10 is designed so that when the locking band 6 is pulled outward, the next locking bar 9 strikes the spike 10 in advance, causing the spike 10 to be forced and triggering the locking tongue 5 to rotate clockwise. A gap is left between the locking tongue 5 and the cutter 14 for the locking band 6 to pass through. To release the locking force on both the inner and outer sides of the locking band 6, press the part of the locking band 6 within the gap with one finger, causing the locking band 6 to bend downward from the gap position. This will cause the locking bar 9 on the back of the locking band 6 to be released from the restriction of the locking tongue 5. Push the locking band 6 in the opposite direction, causing the locking band 6 to retract along the gap (within the range of the buckle 3). At this time, the locking range of the entire hemostatic ring will loosen and increase, and it will detach from the limb.

[0034] In addition, in case of an emergency during hemostasis, forcefully push the top-pressure locking plate 4 so that the top-pressure locking plate 4, along with the cutter 14, applies force to the slot 12, causing the cutting edge of the cutter 14 to cut into the slot 12 and continue applying force to quickly cut the locking band 6. During the cutting process, the locking tongue 5 and the spike 10 on the opposite side provide support to the back of the locking band 6 to ensure that the locking band 6 is cut effectively. The cutting function is directly set on the top-pressing lock plate 4. Under normal conditions, the top-pressing lock plate 4 holds the cutter 14 in the slot 12 and provides locking force to the inner side of the lock band 6. In case of emergency, the top-pressing lock plate 4 can be used to quickly cut off the lock band 6 and release the lock by simply pushing it. Moreover, the rapid plastic deformation characteristics of the slot 12 are used to shorten the cutting time of the cutter 14 on the lock band 6, which improves the ability to deal with emergencies. This method of use in case of emergency is obviously faster and has a stronger ability to deal with emergencies than the above-mentioned method of pressing the lock band 6 between the lock tongue 5 and the cutter 14 and then releasing it under normal conditions.

[0035] like Figure 2 As shown, the top-pressure locking plate 4, which fits within the slide groove 13, protrudes from both sides of the buckle 3, making it easy for the patient to pinch the protrusions on both sides and quickly push the top-pressure locking plate 4, causing the top-pressure locking plate 4 to push the cutter 14 to quickly cut the locking strap 6.

[0036] To further improve the plastic deformation capability of the slot 12 and enable the lock band 6 to be quickly cut when facing the cutter 14, each slot 12 is positioned back-to-back between two lock bars 9 (because the slot 12 is located on the inner side of the lock band 6, while the lock bar 9 is located on the outer side of the lock band 6, and there is a slot 12 between two lock bars 9, so at this time it is said that the slot 12 is back-to-back between two lock bars 9).

[0037] The latch 3 has a limiting baffle 18 formed in one piece, which extends horizontally and intercepts the bottom surface of the latch 5. When the latch 5 is pushed by the locking bar 9 to rotate clockwise (adjusted by the locking band 6), it disengages from the limiting baffle 18. Conversely, when the latch 5 rotates counterclockwise (after the locking band 6 is adjusted), it returns to the limiting baffle 18 and is restrained.

[0038] The inner surface of the flexible ring 1 is an arc-shaped contact surface. An adjustable port 2 of the flexible ring 1 is connected to a telescopic corrugated section 19, which is located within the inner perimeter of the locking strap 6 and the buckle 3. The length of the telescopic corrugated section 19 adjusts as the opening of the adjustable port 2 of the flexible ring 1 changes, ensuring that the hemostatic ring can be flexibly bound to the limb in all directions, improving comfort during wear.

[0039] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations referenced. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0040] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A hand and foot hemostatic clamp, characterized in that, The device includes a flexible ring (1), on which an adjustment port (2) is provided. The adjustment port (2) contains a variable element and a locking assembly. The two ends of the variable element are connected to the two ends of the adjustment port (2). The locking assembly includes a latch (3) connected to one end of the adjustment port (2). The inner end of the latch (3) is provided with a top-pressing locking plate (4). The outer end of the latch (3) is connected to a locking tongue (5). The locking assembly also includes a locking strap (6) connected to the other end of the adjustment port (2). The free end of the locking strap (6) is inserted into the adjustment port (2). Inside the latch (3), the end of the latch (5) abuts against the back of the lock band (6), and a first locking structure (7) is provided between the latch (5) and the back of the lock band (6) to lock the back of the lock band (6). The first locking structure (7) can drive the latch (5) to rotate, so as to quickly release the locking force. The end of the top-pressing lock plate (4) abuts against the inner surface of the lock band (6), and a second locking structure (8) is provided between the top-pressing lock plate (4) and the inner surface of the lock band (6) to lock the inner surface of the lock band (6). The second locking structure (8) can quickly cut the lock band (6).

2. The hand and foot hemostatic clamp according to claim 1, characterized in that, The first locking structure (7) includes a plurality of locking bars (9) disposed on the back of the locking band (6). The locking bars (9) form a locking relationship with the latch (5). The first locking structure (7) also includes a spike (10) disposed on the latch (5). The latch (5) is inclined toward the traction direction of the locking band (6) and locks the locking bars (9) that enter the buckle (3). The spike (10) is inclined in the opposite direction to the latch (5) and approaches the locking bars (9) that are about to enter the buckle (3).

3. A hand and foot hemostatic clamping ring according to claim 2, characterized in that, A shallow groove (11) is provided on the back of the lock band (6) along its length direction, and several lock bars (9) are equidistantly formed in the shallow groove (11) along the length direction of the lock band (6).

4. A hand and foot hemostatic clamping ring according to claim 3, characterized in that, The second locking structure (8) includes several slots (12) on the inner surface of the locking band (6). The second locking structure also includes a sliding groove (13) on the buckle (3). The top-pressing locking plate (4) is fitted in the sliding groove (13). The top-pressing locking plate (4) has a cutter (14) at one end facing the inner surface of the locking band (6). The cutter (14) and the slot (12) form a snap-fit ​​relationship. The part of the top-pressing locking plate (4) that fits in the sliding groove (13) protrudes from both sides of the buckle (3).

5. A hand and foot hemostatic clamping ring according to claim 4, characterized in that, Each of the slots (12) is positioned opposite to the two locking bars (9).

6. A hand and foot hemostatic clamping ring according to claim 5, characterized in that, The latch (3) is provided with a hinge seat (15), and the connecting end of the latch (5) is equipped with a rotating shaft (16). The two ends of the rotating shaft (16) are connected to the hinge seat (15). A torsion spring (17) is sleeved on the rotating shaft (16). The two free ends of the torsion spring (17) are respectively fixed to the hinge seat (15) and the latch (5). The rotation angle of the latch (5) is limited to the inner side of the latch (3) by the torsion spring (17).

7. A hand and foot hemostatic clamping ring according to claim 6, characterized in that, The latch (3) has a limiting baffle (18) formed in one piece, and the limiting baffle (18) extends horizontally and intercepts the bottom surface of the latch (5).

8. A hand and foot hemostatic clamping ring according to claim 7, characterized in that, The inner surface of the flexible ring (1) is an arc-shaped contact surface. The variable component is a telescopic corrugated section (19) set in the adaptation adjustment port (2) of the flexible ring (1). The telescopic corrugated section (19) is located in the inner periphery of the locking belt (6) and the buckle (3).

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