Hemostasis device

Abstract

An embodiment of the present invention provides a hemostasis device, comprising: a wrist strap worn on a wrist; the supporting plate is connected with the wrist strap, and a flexible pressing piece is arranged on the inner side of the supporting plate; the pressure adjusting device is connected to the flexible compression part and used for adjusting the pressure of the flexible compression part on the radial artery incision. The pressure adjusting device comprises a cylinder body; the push rod can move along the inner wall of the barrel, the first end of the push rod is located in the barrel, and the second end of the push rod is in threaded fit with the barrel. The hemostasis device has the advantages that an existing air bag type hemostat is small in compression pain and the like, meanwhile, tedious adjusting operation is reduced, and the service burden of medical staff is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a hemostatic device. Background Art

[0002] After the transradial artery coronary intervention, controlling bleeding at the puncture site is a crucial step. Currently, the hemostatic devices used for radial artery interventional puncture points on the market are roughly divided into two types: knob-type hemostats and balloon-type hemostats. These devices try to reduce bleeding at the puncture point of the blood vessel by compressing the puncture point, and achieve hemostasis by sealing the puncture point through the body's own coagulation mechanism.

[0003] In clinical practice, the operator first wears a hemostat in the catheter room, pressurizes to confirm that there is no bleeding, and then moves the patient to the ward. Medical staff regularly check the bleeding at the compression point and adjust the hemostat to increase or reduce pressure. Since the puncture site is compressed for too long after surgery, the occlusion of the artery at the compression site increases, which can cause peripheral ischemia. At the same time, there are also postoperative complications such as inappropriate compression site causing subcutaneous bleeding and insufficient compression causing bleeding at the puncture site, which affects the patient's quality of life score after surgery and delays recovery, causing discomfort to the patient.

[0004] In order to reduce the inappropriate pressure caused by the hemostat, medical staff need to properly adjust the compression hemostat worn by the patient after surgery. For the airbag hemostat, medical staff need to use an external syringe to extract the air in the airbag to reduce the amount of air in the airbag to reduce the pressure. The compression adjustment of the knob-type hemostat is that medical staff adjusts the pressure on the patient's wrist by operating the knob on the hemostat to raise and lower the height of the silicone pad at the compression point.

[0005] The industry has always regarded the two types of hemostats as two competing technical types. Through a survey of users, it was found that the knob-type hemostats may exert less pressure on the surrounding tissues, but the patient comfort is poor. Compared with the knob-type hemostats, the airbag-type hemostats have softer airbags at the compression site, which causes less pain and are well received in clinical practice. However, there are still the following problems in their use:

[0006] 1. Some devices on the market require a separate syringe, which may be mistakenly connected to other devices during use, causing air to be injected into the blood vessels and cause air embolism.

[0007] 2. The operation of deflation of the syringe is relatively cumbersome, especially the first decompression operation after surgery. Since the pressure in the compression bag of the hemostat is too high, the syringe piston will rebound instantly when the syringe is inserted into the deflation valve. The sudden drop in pressure in the compression bag can easily lead to re-bleeding at the puncture site. Re-bleeding will affect the patient's postoperative discharge time and the occurrence of other complications. Therefore, in actual clinical use scenarios, medical staff need to control the piston rebound with one hand while extracting an appropriate amount of air. The operation is difficult, and the discomfort of operating the hemostat will affect the patient's recovery after surgery.

[0008] 3. Medical staff need to carry syringes with them, because it is common for syringes to be lost and replacements to be found temporarily in the ward. Summary of the invention

[0009] In order to solve the above problems existing in the prior art, an embodiment of the present invention provides a radial artery compression hemostatic device, which can have the advantages of an airbag hemostat, while reducing the cumbersome adjustment operation of the existing airbag hemostat and reducing the work burden of medical personnel.

[0010] According to an embodiment of the present invention, a hemostatic device is provided. The hemostatic device comprises: a wristband for wearing on a wrist; a support plate connected to the wristband, a flexible compression member provided on the inner side of the support plate; and a pressure regulating device connected to the flexible compression member for regulating the pressure of the flexible compression member on the radial artery incision, wherein the pressure regulating device comprises: a cylinder; and a push rod capable of moving along the inner wall of the cylinder, wherein the first end of the push rod is located in the cylinder, and the second end of the push rod is threadedly engaged with the cylinder.

[0011] Optionally, a screw groove is provided on the inner wall of the cylinder, and a thread matching with the screw groove of the cylinder is provided on the second end of the push rod.

[0012] Optionally, a rubber plug is provided at the first end of the push rod, and the rubber plug is sealingly fitted to the inner wall of the cylinder.

[0013] Optionally, the first end of the push rod is provided with an I-shaped clamping head, and the rubber plug is provided with an I-shaped clamping groove matching with the I-shaped clamping head.

[0014] Optionally, the flexible compression member is an inflatable airbag.

[0015] Optionally, an auxiliary airbag is further provided on the inner side of the support plate, the auxiliary airbag is located between the support plate and the inflatable airbag, and is connected to the pressure regulating device.

[0016] Optionally, a knob is provided at the second end of the push rod.

[0017] Optionally, the cylinder and / or the push rod of the pressure regulating device are made of metal or plastic.

[0018] Optionally, the wristband, the support plate and / or the flexible compression member are made of a material with high visibility.

[0019] Optionally, the length of the wrist strap is adjustable.

[0020] The hemostatic device according to the embodiment of the present invention can take into account the advantages of the airbag hemostat while reducing the cumbersome adjustment operation of the existing airbag hemostat, thereby reducing the work burden of medical personnel.

[0021] The pressure regulating device is connected to the flexible compression member, which effectively prevents the risk of air embolism caused by mistakenly injecting air into the blood vessels when a separate syringe is connected to other medical devices.

[0022] The threaded fit between the push rod and the barrel effectively avoids the risk of the push rod and the rubber plug rebounding, and can effectively fix the push rod so that it does not move, thus preventing further bleeding at the puncture site.

[0023] The pressure regulating device is connected to the flexible pressing member, which also avoids the situation where the pressure cannot be adjusted due to the syringe being lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features and advantages of the present invention will be better understood through the following detailed description of the optional embodiments in conjunction with the accompanying drawings, in which the same reference numerals represent the same or similar components, wherein:

[0025] Figure 1 A perspective view of a hemostatic device according to an embodiment of the present invention is shown;

[0026] Figure 2 shows a front view of a hemostatic device according to an embodiment of the present invention;

[0027] Figure 3 shows a side view of a hemostatic device according to an embodiment of the present invention;

[0028] Figure 4 A schematic diagram showing a pressure regulating device of a hemostatic device according to an embodiment of the present invention is shown;

[0029] Figure 5 An exploded view showing a pressure regulating device of a hemostatic device according to an embodiment of the present invention; and

[0030] Figures 6A-6D A schematic diagram showing the use process of the hemostatic device according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0031] The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely exemplary of specific ways to implement and use the present invention, and are not intended to limit the scope of the present invention. When describing the structural positions of the various components, such as up, down, top, bottom, etc., the expressions of directions are not absolute, but relative. When the various components are arranged as shown in the figure, these directional expressions are appropriate, but when the positions of the various components in the figure change, these directional expressions also change accordingly.

[0032] When used herein, the expressions “having”, “may have”, “including”, and “may include” indicate the presence of corresponding features (eg, numbers, functions, operations, or constituent elements such as components), and do not exclude one or more additional features.

[0033] The expressions "first", "second", "the first", and "the second" used in various embodiments of the present invention may modify various components (regardless of their order and / or importance), but do not limit the corresponding components. For example, a first device and a second device indicate different devices, but they are both devices. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present invention.

[0034] It should be understood that when an element (e.g., a first element) is represented as being "connected" or "coupled" to another element (e.g., a second element) (operably or communicatively), it may be directly connected or coupled to the other element, or any other element (e.g., a third element) may be interposed therebetween. Conversely, it should be understood that when an element (e.g., a first element) is represented as being "directly connected" or "directly coupled" to another element (the second element), there is no intervening element (e.g., a third element) therebetween.

[0035] According to an embodiment of the present invention, the hemostatic device includes: a wristband for wearing on the wrist; a support plate connected to the wristband, a flexible compression member is provided on the inner side of the support plate; and a pressure regulating device connected to the flexible compression member, for regulating the pressure of the flexible compression member on the radial artery incision, wherein the pressure regulating device includes: a cylinder; and a push rod, which can move along the inner wall of the cylinder, the first end of the push rod is located in the cylinder, and the second end of the push rod is threadedly engaged with the cylinder. The cylinder is used to contain fluid, and the volume in the cylinder is changed by moving the push rod, and the fluid is filled into or discharged from the flexible compression member, thereby regulating the pressure of the flexible compression member on the radial artery incision.

[0036] The structure and function of the hemostatic device according to a specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] like Figures 1 to 3As shown in , the hemostatic device 100 includes a wristband 10, a support plate 20 and a pressure regulating device 30. The wristband 10 is used to be worn on the wrist, and the support plate 20 is connected to the wristband 10 to form an annular structure. The inner side of the support plate 20 is provided with a flexible compression member, and the flexible compression member can be, for example, an inflatable airbag 21. The pressure regulating device 30 is connected to the inflatable airbag 21, and is used to inflate and deflate the inflatable airbag 21, and adjust the pressure of the flexible compression member on the radial artery incision. In other embodiments, the flexible compression member can also be a liquid-filled compression member, such as a water-filled water bag.

[0038] Combination Figure 4 to Figure 5 As shown in the figure, the pressure regulating device 30 includes a cylinder 31 and a push rod 32. The pressure regulating device 30 is connected to the inflatable airbag 21, for example, through a ventilation tube 33. The push rod 32 can move along the inner wall of the cylinder 31, the first end of the push rod 32 is located in the cylinder 31, and the second end of the push rod 32 is threadedly matched with the inner wall of the cylinder 31. The volume in the cylinder 31 is changed by rotating the push rod 32.

[0039] In some embodiments, the inner wall of the barrel 31 is provided with a screw groove 311, the first end of the push rod 32 is located inside the barrel 31, the second end of the push rod 32 is located outside the barrel 31, and the second end of the push rod 32 is provided with a thread 321 that matches the screw groove 311 of the barrel 31. In other embodiments, the inner wall of the barrel 31 is provided with a thread, and the second end of the push rod 32 is provided with a screw groove that matches the thread of the barrel 31.

[0040] According to the embodiment of the present invention, the functions of inflation and deflation are achieved by pushing the push rod 32 and rotating the push rod 32. When the push rod 32 is pushed, a large amount of gas can be injected / released, and when the push rod 32 is rotated, the screw groove 311 of the barrel 31 and the thread 321 of the push rod 32 are matched to achieve a small amount of gas injection / release.

[0041] Specifically, the first end of the push rod 32 is not provided with a thread, suitable for pushing along the inner wall of the cylinder 31, and the second end of the push rod 32 is provided with a thread, suitable for rotating along the inner wall of the cylinder 31. When in use, the operation mode can be selected according to the size requirement of the gas volume adjustment. Large amount adjustment is suitable for pushing the push rod 32, and micro amount adjustment is suitable for rotating the push rod 32, so as to achieve inflation and deflation.

[0042] In some embodiments, the length of the wristband 10 is adjustable, for example, according to the thickness of the patient's wrist.

[0043] In some embodiments, the support plate 20 and the wristband 10 can be connected by bonding or bundling. For example, a hole is set on the support plate 20, and the wristband 10 passes through the hole and is connected by Velcro or snap fasteners. When Velcro is used, the length of the wristband is adjusted by adjusting the overlapping area of ​​the Velcro. In other embodiments, the support plate 20 can also be set inside the wristband 10.

[0044] In some embodiments, a rubber plug 34 is provided at the first end of the push rod 32, and the rubber plug 34 is sealed and fitted with the inner wall of the cylinder 31. In some embodiments, an I-shaped clamp 322 is provided at the first end of the push rod 32, and the rubber plug 34 is provided with an I-shaped clamp groove 341 that matches the I-shaped clamp 322. The rubber plug 34 is installed to the first end of the push rod 32 by buckling the I-shaped clamp 322 into the I-shaped clamp 322. In other embodiments, the rubber plug 34 can also be fixed to the first end of the push rod 32 by glue.

[0045] In some embodiments, an auxiliary airbag 22 is further provided on the inner side of the support plate 20, and the auxiliary airbag 22 plays a role in assisting positioning. The auxiliary airbag 22 is located between the support plate 20 and the inflatable airbag 21, and the auxiliary airbag 22 is connected to the pressure regulating device 30. In other embodiments, the inflatable airbag 21 and the auxiliary airbag 22 may be formed integrally.

[0046] In some embodiments, the auxiliary airbag 22 and the pressure regulating device 30 are not directly connected, and the auxiliary airbag 22 is connected to the inflatable airbag 21 , that is, connected to the pressure regulating device 30 through the inflatable airbag 21 .

[0047] In some embodiments, the size of the inflatable airbag 21 is larger than the size of the auxiliary airbag 22 , and the specific size can be changed according to the thickness of the wrist and actual conditions.

[0048] By setting airbags of different sizes, the air pressure in the airbag can be adjusted more accurately according to actual needs, so as to achieve the best hemostasis purpose. The auxiliary airbag is used to fill the space between the support plate 20 and the inflatable airbag 21, and at the same time, the pressure of the gas in the auxiliary airbag 22 is used to squeeze the inflatable airbag 21 to achieve a better squeezing effect.

[0049] In some embodiments, at least one annular notch 323 is provided on the push rod 32, which is beneficial to the processing of the structure and reduces materials and costs.

[0050] In some embodiments, a knob 324 is provided at the second end of the push rod 32, which facilitates rotating the push rod 32 by rotating the knob 324 to achieve the functions of inflation and deflation.

[0051] In some embodiments, the hemostatic device 100 is made of a transparent or translucent material so that the operator can check the bleeding situation at the compression point and adjust the pressure or decompression of the hemostatic device.

[0052] In some embodiments, the cylinder 31 and / or the push rod 32 are made of a material having a certain supporting force and rigidity, such as metal or plastic.

[0053] In some embodiments, the wristband 10, the support plate 20, the inflatable airbag 21 and / or the auxiliary airbag 22 are made of materials with high visibility, such as transparent or translucent materials, such as transparent films, transparent plastic sheets, etc., so that the operator can easily observe the bleeding at the puncture site. In some embodiments, the wristband 10, the inflatable airbag 21 and / or the auxiliary airbag 22 are made of plastic.

[0054] In some embodiments, one end of the cylinder 31 has an air filling and discharging port 312 for communicating with the ventilation conduit 33 , and the other end has an opening 313 for inserting the push rod 32 into the cylinder 31 .

[0055] Figures 6A-6D A schematic diagram showing the use process of the hemostatic device according to an embodiment of the present invention is shown.

[0056] like Fig. 6A As shown in , the push rod 32 is pulled to the tail of the cylinder 31 so that the air pressure in the cylinder 31 is the same as the atmospheric pressure. Figure 6B As shown in , the push rod 32 is pushed forward until the thread 321 of the push rod 32 touches the screw groove 311 of the cylinder 31, so that the space inside the cylinder 31 is reduced and a large amount of gas is injected into the inflatable airbag 21. Figure 6C As shown in FIG, the knob 324 is turned forward, a small amount of gas is injected into the inflatable airbag 21, the pressure of the inflatable airbag 21 increases, and the hemostatic effect is enhanced. When the predetermined hemostatic effect is achieved, the knob 324 is stopped from being turned. Fig.6D As shown in , the knob 324 is rotated backward so that the space in the cylinder 31 increases, and the gas in the inflatable airbag 21 returns to the cylinder 31.

[0057] The operator can reduce the pressure by rotating the knob 324, and finally reduce the pressure several times according to the patient's condition until it is confirmed that no adverse events occur at the puncture site. The operator can also pressurize the inflatable airbag 21 by rotating the knob in the opposite direction to achieve gas reflux.

[0058] The hemostatic device according to the embodiment of the present invention has the following advantages:

[0059] 1. Effectively prevent the risk of air embolism caused by accidentally injecting air into blood vessels when a separate syringe is connected to other medical devices.

[0060] 2. The operation of air volume adjustment is simplified. The inflation action is the same as that of a syringe. It can be achieved by pushing the push rod forward. The air volume adjustment is also very simple. It can be achieved by rotating the push rod.

[0061] 3. It effectively avoids the risk of syringe piston rebound. The screw groove can effectively fix the push rod and prevent it from moving, thus avoiding further bleeding at the puncture site.

[0062] 4. Avoid the situation where the syringe is lost and cannot be adjusted.

[0063] The hemostatic device according to the embodiment of the present invention has the advantages of the existing airbag hemostatic device such as less compression and pain, and at the same time reduces the cumbersome adjustment operation and reduces the work burden of medical personnel.

[0064] The terms used herein are only used to describe certain embodiments of the present invention and are not intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless they are clearly different in context. Unless otherwise defined, all terms used herein have the same meaning as the meaning generally understood by those skilled in the art to which the present invention belongs. These terms defined in the commonly used dictionary may be interpreted as having the meaning equal to the contextual meaning in the relevant technical field, and unless clearly defined in the present invention, are not understood to have ideal or overly formal meanings. In some cases, even the terms defined in the present invention should not be interpreted as excluding embodiments of the present invention.

[0065] The technical content and technical features of the present invention have been disclosed above. However, it can be understood that under the creative ideas of the present invention, those skilled in the art can make various changes and improvements to the above disclosed concepts, but they all belong to the protection scope of the present invention. The description of the above embodiments is illustrative rather than restrictive, and the protection scope of the present invention is determined by the claims.

Claims

1. A hemostatic device, characterized in that: include: Wristband, for wearing on the wrist; A support plate connected to the wristband, wherein a flexible compression member is provided on the inner side of the support plate; as well as A pressure regulating device, connected to the flexible compression member, for regulating the pressure of the flexible compression member on the radial artery incision, wherein the pressure regulating device comprises: a barrel; and The push rod can move along the inner wall of the cylinder, the first end of the push rod is located in the cylinder, and the second end of the push rod is threadedly matched with the cylinder.

2. The hemostatic device according to claim 1, characterized in that: The inner wall of the cylinder is provided with a screw groove, and the second end of the push rod is provided with a thread matching with the screw groove of the cylinder.

3. The hemostatic device according to claim 1, characterized in that: The first end of the push rod is provided with a rubber plug, and the rubber plug is sealed and fitted with the inner wall of the cylinder.

4. The hemostatic device according to claim 3, characterized in that: The first end of the push rod is provided with an I-shaped clamping head, and the rubber plug is provided with an I-shaped clamping groove matched with the I-shaped clamping head.

5. The hemostatic device according to claim 1, characterized in that: The flexible pressing member is an inflatable airbag.

6. The hemostatic device according to claim 5, characterized in that: An auxiliary air bag is also provided on the inner side of the support plate. The auxiliary air bag is located between the support plate and the inflatable air bag and is connected to the pressure regulating device.

7. The hemostatic device according to any one of claims 1 to 6, characterized in that: The second end of the push rod is provided with a knob.

8. The hemostatic device according to any one of claims 1 to 6, characterized in that: The cylinder and / or the push rod of the pressure regulating device are made of metal or plastic.

9. The hemostatic device according to any one of claims 1 to 6, characterized in that: The wristband, the support plate and / or the flexible compression member are made of materials with high visibility.

10. The hemostatic device according to any one of claims 1 to 6, characterized in that: The length of the wrist strap is adjustable.

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