Puncture part compression hemostat capable of continuously reducing pressure

Abstract

The invention relates to the technical field of compression hemostasis equipment, and discloses a puncture part compression hemostat capable of continuously reducing pressure, which comprises a shell capable of being worn on a limb through a wrist strap, and further comprises an inner cavity formed in the bottom of the shell; the moving plate and the hemostasis plate are arranged up and down and are movably arranged in the inner cavity up and down, and a pressure spring is arranged between the moving plate and the hemostasis plate; the oil cylinder is filled with damping oil and is fixedly arranged at the top of the shell; the piston is vertically and movably arranged in the oil cylinder, and the bottom of the piston is fixedly connected with the moving plate through a connecting rod; and the piston can slowly move upwards in the oil cylinder. According to the puncture part compression hemostat capable of continuously reducing pressure, the piston in the oil cylinder gradually moves upwards, so that the compression force of the hemostasis plate on a puncture part can be gradually reduced, continuous pressure reduction is achieved, the pressure reduction process is stable and safe, and manual operation is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of compression hemostasis equipment, in particular to a puncture site compression hemostasis device capable of continuously reducing pressure. Background Art

[0002] After cardiovascular intervention, it is necessary to apply pressure to the puncture site to stop bleeding in order to prevent postoperative bleeding or hematoma formation. Currently, there are usually manual pressure hemostasis, bandage hemostasis, pressurizer hemostasis and other methods in clinical practice. Among them, manual pressure hemostasis requires medical staff to apply pressure continuously, which is labor-intensive and has unstable pressure. Bandage hemostasis is not easy to control the tightness. Therefore, pressurizers are the most widely used.

[0003] For example, in the invention patent with the Chinese patent announcement number: CN113081146A, a hemostatic compressor with continuous pressurization and moisture alarm functions at the puncture site is provided. It has the advantages of continuous pressurization and moisture alarm functions, and can realize automatic decompression operation. It does not require medical staff to conduct manual inspections and adjustments, saving time and effort, and is efficient, convenient and precise in adjustment.

[0004] However, during the study, we found that the above-mentioned hemostatic compressor still has certain shortcomings. For example, the automatic decompression of the above-mentioned hemostatic compressor requires the cooperation of multiple electronic devices such as circuit boards and fans. It is not only complex in structure and high in cost, but also difficult to achieve continuous pressure reduction.

[0005] Therefore, we proposed a puncture site compression hemostat that can continuously reduce pressure. Summary of the invention

[0006] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides a puncture site compression hemostat capable of continuous decompression, which has the advantage of continuous decompression.

[0007] (II) Technical solution In order to achieve the above-mentioned purpose of being able to continuously reduce pressure, the present invention provides the following technical solution: a puncture site compression hemostat capable of continuously reducing pressure, comprising a shell that can be worn on a limb through a wristband, and also comprising: An inner cavity is provided at the bottom of the shell; The movable plate and the hemostatic plate are arranged one above the other and are both movably arranged in the inner cavity, and a pressure spring is arranged between the two. The oil cylinder filled with damping oil is fixedly mounted on the top of the housing; The piston is movably arranged in the oil cylinder, and the bottom is fixedly connected to the moving plate through a connecting rod; The piston can slowly move upward in the oil cylinder.

[0008] As a preferred technical solution of the present invention, the piston is supported in the oil cylinder by a support spring; A through hole is vertically penetrated on the piston.

[0009] As a preferred technical solution of the present invention, an oil hole is also formed through the piston, and a one-way valve is fixedly installed in the oil hole for allowing damping oil to flow in one direction from bottom to top.

[0010] As a preferred technical solution of the present invention, the top of the piston is also connected to a pressure rod, the top end of the pressure rod extends to the outside of the oil cylinder and is fixedly connected to a pressure head.

[0011] As a preferred technical solution of the present invention, a rotation groove is provided on the top of the piston, a rotation plate is rotatably installed in the rotation groove, and the bottom end of the pressure rod is fixedly installed on the rotation plate; A throttling hole is provided on the rotating plate corresponding to the through hole, and the size of the overlapping area of ​​the throttling hole and the through hole can be adjusted by rotating the rotating plate.

[0012] As a preferred technical solution of the present invention, a plurality of teeth are evenly arranged on the side of the rotating plate, and an elastic tooth is movably arranged between two adjacent teeth, and the elastic tooth is fixedly mounted on the inner wall of the rotating groove.

[0013] As a preferred technical solution of the present invention, the connection rod and the bottom of the oil cylinder, and the pressure rod and the top of the oil cylinder are sealed by an annular seal.

[0014] As a preferred technical solution of the present invention, a bottom column is fixedly installed at the bottom of the movable plate, a sliding sleeve is movablely provided at the bottom end of the bottom column, and the pressure spring is fixedly arranged between the bottom of the sliding sleeve and the top of the hemostatic plate; The air cavity formed between the bottom column and the sliding sleeve can be filled with gas.

[0015] As a preferred technical solution of the present invention, an annular groove is opened on the side of the bottom of the shell, and an air bag and an expansion strip are respectively arranged above and below the annular groove, and the air bag is connected with the air cavity through a connecting tube.

[0016] As a preferred technical solution of the present invention, the connecting pipe has a front section, a middle section and a rear section, the front section is buried in the wall of the shell, the rear section is buried in the bottom column, and the middle section is a hose.

[0017] (III) Beneficial effects Compared with the prior art, the present invention provides a puncture site compression hemostat capable of continuous decompression, which has the following beneficial effects: 1. The puncture site compression hemostat capable of continuous decompression can gradually reduce the pressure of the hemostatic plate on the puncture site by gradually moving the piston in the oil cylinder upward, thereby achieving continuous decompression. The decompression process is smooth and safe, and no manual operation is required.

[0018] 2. The puncture site compression hemostat capable of continuous decompression can control the speed at which the piston moves upward by adjusting the size of the overlapping area between the through hole and the throttle hole. Thus, medical staff can adjust the decompression rate according to the patient's postoperative recovery, making the hemostasis process more controllable and accurate, and suitable for different patients.

[0019] 2. The puncture site compression hemostat that can continuously reduce pressure, when the compression force is insufficient and causes bleeding at the puncture site, the expansion strip absorbs the bleeding and increases in volume, thereby squeezing the airbag, so that the gas in the airbag is transported to the air cavity, pushing the sliding sleeve downward, thereby automatically increasing the compression force of the hemostatic plate, achieving adaptive adjustment to the bleeding situation, and further improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an axonometric view of the present invention; Figure 2 A bottom view of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 It is an enlarged schematic diagram of the sliding sleeve part of the present invention; Figure 5 is a cross-sectional view of the present invention; Figure 6 It is a cross-sectional view of the oil cylinder part of the present invention; Figure 7 It is a top view of the rotating plate part of the present invention.

[0021] In the figure: 1. shell; 2. wristband; 3. inner cavity; 4. hemostatic plate; 5. movable plate; 6. pressure spring; 7. bottom column; 8. sliding sleeve; 9. annular boss; 10. annular groove; 11. expansion strip; 12. air bag; 13. connecting pipe; 14. oil cylinder; 15. piston; 16. support spring; 17. connecting rod; 18. pressure rod; 19. pressure head; 20. oil hole; 21. one-way valve; 22. rotating plate; 23. throttle hole; 24. through hole; 25. teeth; 26. elastic tooth. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0023] Embodiment 1: See also Figure 1-Figure 7 A puncture site compression hemostat capable of continuous decompression includes a shell 1 that can be worn on a limb via a wristband 2. The specific form of the wristband 2 can be selected by technicians in this field according to actual needs, or the wristband 2 of a watch can be directly used.

[0024] like Figure 3 As shown, an inner cavity 3 is opened at the bottom of the shell 1, and a movable plate 5 and a hemostatic plate 4 are movably arranged on the upper and lower sides of the inner cavity 3, and a pressure spring 6 is provided between the movable plate 5 and the hemostatic plate 4. When in use, the hemostatic plate 4 is pressed on the puncture site to perform compression hemostasis. By adjusting the position of the movable plate 5, the compression degree of the pressure spring 6 can be adjusted, and then the pressure force can be adjusted.

[0025] like Figure 3 As shown, an oil cylinder 14 is fixedly installed on the top of the housing 1, and the inside of the oil cylinder 14 is filled with damping oil. The piston 15 is movably arranged in the oil cylinder 14, and the bottom is fixedly connected to the moving plate 5 through a connecting rod 17, so that the movement of the piston 15 can drive the moving plate 5 to move through the connecting rod 17; In this embodiment, the piston 15 can slowly move upward in the oil cylinder 14, so that the movable plate 5 can also slowly move upward. When compressing to stop bleeding, the slow upward movement of the movable plate 5 can gradually reduce the pressure of the hemostatic plate 4 on the puncture site, thereby achieving continuous decompression, and the decompression process is smooth and safe, and no manual operation is required.

[0026] Regarding the slow upward movement of the piston 15 in the oil cylinder 14, specifically, as Figure 6 As shown, the piston 15 is supported in the oil cylinder 14 by a support spring 16, and the support spring 16 is a slow-release spring. In addition, a through hole 24 is vertically penetrated on the piston 15, and the through hole 24 is thin enough; When the piston 15 is pressed down, the piston 15 will move upward under the elastic force of the support spring 16. Since the through hole 24 is thin enough and does not allow a large amount of damping oil to pass through, the upward movement of the piston 15 is slow.

[0027] In order to facilitate the downward pressing of the piston 15, in the present invention, an oil hole 20 is also opened through the piston 15, and a one-way valve 21 is fixedly installed in the oil hole 20 for only allowing the damping oil to flow in one direction from bottom to top. When the piston 15 is pressed downward, the damping oil can flow through the oil hole 20 to achieve the purpose of saving effort.

[0028] In this embodiment, a pressure rod 18 is also connected to the top of the piston 15. The top end of the pressure rod 18 extends to the outside of the oil cylinder 14 and is fixedly connected to a pressure head 19. Therefore, by pressing the pressure head 19 with a finger, the piston 15 can be driven downward through the pressure rod 18 to adjust the position of the piston 15.

[0029] In the present invention, the opening size of the through hole 24 is still adjustable, specifically, as Figure 6 As shown, a rotating groove is provided on the top of the piston 15, and a rotating plate 22 is rotatably installed in the rotating groove. The bottom end of the pressure rod 18 is fixedly installed on the rotating plate 22. A throttling hole 23 is provided on the rotating plate 22 corresponding to the through hole 24. By rotating the rotating plate 22, the size of the overlapping area of ​​the throttling hole 23 and the through hole 24 can be adjusted, and then the opening size of the through hole 24 can be adjusted. When the opening size is adjusted, the speed of the piston 15 moving up can be controlled. The larger the opening, the faster the upward movement. Conversely, the smaller the opening, the slower the upward movement. Therefore, medical staff can adjust the decompression rate according to the patient's postoperative recovery condition, so that the hemostasis process is more controllable and accurate, and suitable for different patients. If the throttling hole 23 and the through hole 24 are completely staggered, the passage is closed and the piston 15 cannot move up. At this time, the hemostasis plate 4 can be used to compress the puncture site with constant pressure to stop bleeding.

[0030] like Figure 7 As shown, a plurality of teeth 25 are evenly arranged on the side of the rotating plate 22, and an elastic tooth 26 is movably arranged between two adjacent teeth 25, and the elastic tooth 26 is fixedly mounted on the inner wall of the rotating groove. When the rotating plate 22 rotates, the elastic tooth 26 is engaged between two adjacent teeth 25 to position the rotating plate 22, thereby preventing the rotating plate 22 from rotating at will, which is beneficial to maintaining the size of the overlapping area between the throttling hole 23 and the through hole 24.

[0031] In the present invention, the connecting rod 17 and the bottom of the oil cylinder 14, and the pressure rod 18 and the top of the oil cylinder 14 are sealed by annular seals, which can be rubber sealing rings, etc., and those skilled in the art can choose according to actual needs.

[0032] Embodiment 2: See also Figure 4 and Figure 5, on the basis of the first embodiment, in this embodiment, a bottom column 7 is further fixedly installed at the bottom of the moving plate 5, a sliding sleeve 8 is movably sleeved at the bottom end of the bottom column 7, and a pressing spring 6 is fixedly arranged between the bottom of the sliding sleeve 8 and the top of the hemostatic plate 4. As Figure 4 shown, an air cavity is formed between the bottom column 7 and the sliding sleeve 8, and the air cavity can be filled with gas to move the sliding sleeve 8 downward. In order to keep the air cavity having an initial volume, an annular boss 9 is further installed on the inner bottom wall of the sliding sleeve 8; If bleeding occurs at the puncture site, it indicates that the compression force is insufficient. At this time, gas can be filled into the air cavity to move the sliding sleeve 8 downward. By the downward movement of the sliding sleeve 8, the compression force of the hemostatic plate 4 can be increased, so as to cope with the bleeding situation.

[0033] In this embodiment, the filling of the gas in the air cavity is realized according to whether there is bleeding or not. Specifically, as Figure 5 shown, an annular groove 10 is formed on the side of the bottom of the housing 1, an airbag 12 and an expansion strip 11 are respectively arranged up and down in the annular groove 10, and the airbag 12 is connected to the air cavity through a communication pipe 13; When bleeding occurs at the puncture site due to insufficient compression force of the hemostatic plate 4, the expansion strip 11 absorbs the bleeding and increases in volume, and then squeezes the airbag 12, so that the gas in the airbag 12 is transported to the air cavity, pushing the sliding sleeve 8 downward, thereby automatically increasing the compression force of the hemostatic plate 4 and realizing the adaptive adjustment of the bleeding situation.

[0034] In this embodiment, the communication pipe 13 has a front section, a middle section and a rear section. The front section is buried in the wall body of the housing 1, the rear section is buried in the bottom column 7, and the middle section is a flexible pipe to automatically adapt to the change of the position of the bottom column 7.

[0035] The expansion strip 11 can specifically be made of materials such as superabsorbent resin and polyurethane foam, and those skilled in the art can choose according to actual needs.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A puncture site compression hemostat capable of continuous decompression, comprising a housing (1) that can be worn on a limb via a wristband (2), characterized in that: Also includes: An inner cavity (3) is provided at the bottom of the housing (1); A movable plate (5) and a hemostatic plate (4) are arranged one above the other and are both movably arranged in the inner cavity (3) and a pressure spring (6) is provided between the two. An oil cylinder (14) filled with damping oil is fixedly mounted on the top of the housing (1); A piston (15) is movably disposed in the oil cylinder (14) and has a bottom fixedly connected to the movable plate (5) via a connecting rod (17); The piston (15) can slowly move upward in the oil cylinder (14).

2. A puncture site compression hemostat capable of continuous decompression according to claim 1, characterized in that: The piston (15) is supported in the oil cylinder (14) by a support spring (16); The piston (15) is provided with a through hole (24) extending vertically therethrough.

3. The puncture site compression hemostat capable of continuous decompression according to claim 2, characterized in that: The piston (15) is also provided with an oil hole (20) extending therethrough, and a one-way valve (21) is fixedly installed in the oil hole (20) for allowing damping oil to flow in one direction from bottom to top.

4. A puncture site compression hemostat capable of continuous decompression according to claim 2 or 3, characterized in that: The top of the piston (15) is also connected to a pressure rod (18), and the top end of the pressure rod (18) extends to the outside of the oil cylinder (14) and is fixedly connected to a pressure head (19).

5. The puncture site compression hemostat capable of continuous decompression according to claim 4, characterized in that: The top of the piston (15) is provided with a rotation groove, a rotation plate (22) is rotatably mounted in the rotation groove, and the bottom end of the pressure rod (18) is fixedly mounted on the rotation plate (22); A throttling hole (23) is provided on the rotating plate (22) corresponding to the through hole (24), and the size of the overlapping area between the throttling hole (23) and the through hole (24) can be adjusted by rotating the rotating plate (22).

6. The puncture site compression hemostat capable of continuous decompression according to claim 5, characterized in that: A plurality of teeth (25) are evenly arranged on the side of the rotating plate (22), and an elastic clamping tooth (26) is movably arranged between two adjacent teeth (25), and the elastic clamping tooth (26) is fixedly mounted on the inner side wall of the rotating groove.

7. The puncture site compression hemostat capable of continuous decompression according to claim 4, characterized in that: The connection rod (17) and the bottom of the oil cylinder (14), as well as the pressure rod (18) and the top of the oil cylinder (14), are sealed via annular seals.

8. The puncture site compression hemostat capable of continuous decompression according to claim 1, characterized in that: A bottom column (7) is fixedly mounted on the bottom of the movable plate (5); a sliding sleeve (8) is movablely sleeved on the bottom end of the bottom column (7); and the pressure spring (6) is fixedly arranged between the bottom of the sliding sleeve (8) and the top of the hemostatic plate (4); The air cavity formed between the bottom column (7) and the sliding sleeve (8) can be filled with gas.

9. The puncture site compression hemostat capable of continuous decompression according to claim 8, characterized in that: An annular groove (10) is provided on the side of the bottom of the shell (1), and an air bag (12) and an expansion strip (11) are respectively arranged above and below the annular groove (10), and the air bag (12) is connected to the air cavity through a connecting pipe (13).

10. The puncture site compression hemostat capable of continuous decompression according to claim 9, characterized in that: The connecting pipe (13) comprises a front section, a middle section and a rear section, the front section is buried in the wall of the shell (1), the rear section is buried in the bottom column (7), and the middle section is a hose.

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