A hemostatic device after cardiac interventional surgery

Abstract

This invention relates to the field of medical device technology, and more particularly to a hemostasis device after cardiac interventional procedures. The device includes a base plate, a restraint strap disposed on the base plate for securing the base plate to the patient's limb at the puncture site, a compression mechanism disposed on the base plate for compressing the tissue at the puncture site, an arterial compression mechanism for compressing the arterial puncture point, and a skin compression mechanism for compressing the epidermal puncture point. This solution uses the arterial compression mechanism and the skin compression mechanism to independently compress the arterial puncture point and the epidermal puncture point, respectively. This results in greater pressure on the artery at the arterial puncture point and the epidermal puncture point than at other locations, increasing the degree of arterial contraction at the arterial puncture point, accelerating the closure of the arterial blood vessel at the arterial puncture point, and effectively improving the hemostasis effect.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a hemostasis device after cardiac interventional procedures. Background Technology

[0002] Cardiac interventional surgery is a novel technique for diagnosing and treating cardiovascular diseases. It involves inserting a cardiac catheter through a puncture of a superficial blood vessel under continuous digital subtraction angiography. Specific cardiac catheterization techniques are then used to diagnose and treat heart disease. It is a relatively advanced and rapidly evolving method for treating heart disease, falling between medical and surgical treatments. It is an invasive procedure. The incision for cardiac interventional surgery is typically made in the groin area via the femoral artery or the radial artery in the wrist. After the procedure, patients are routinely required to rest in bed, and the puncture site needs to be pressure-bandaged for 24 hours.

[0003] During puncture, if the needle is inserted perpendicularly to the aorta, the projection points of the aortic puncture point and the skin puncture point on the perpendicular direction to the patient's body surface coincide. However, in most cases, the needle is inserted at an angle, and the projection points of the aortic puncture point and the skin puncture point on the perpendicular direction to the patient's body surface are some distance apart. Existing post-cardiac interventional puncture site compression hemostasis devices only apply vertical pressure to the skin puncture point and the surrounding body surface. The pressure on the puncture point and the surrounding muscle tissue is uniform, and the pressure cannot be concentrated on the actual skin puncture point and arterial puncture point that require compression. Therefore, the hemostatic effect is poor and cannot achieve the goal of rapid hemostasis. Summary of the Invention

[0004] The purpose of this invention is to provide a hemostasis device after cardiac interventional surgery to solve the problem that it is difficult to transfer the wounded on existing medical trains using existing transport beds due to the narrow curves on existing medical trains.

[0005] To achieve the above objectives, the basic solution of the present invention is as follows:

[0006] A hemostatic device after cardiac interventional surgery includes a base plate, a restraint strap disposed on the base plate for securing the base plate to the patient's limb at the puncture site, a compression mechanism disposed on the base plate for compressing the tissue at the puncture site, an arterial compression mechanism for compressing the arterial puncture point, and an epidermal compression mechanism for compressing the epidermal puncture point.

[0007] In the above scheme, the arterial compression mechanism and the epidermal compression mechanism independently compress the arterial puncture point and the epidermal puncture point, respectively. This results in the artery experiencing greater pressure at the arterial puncture point and the epidermal puncture point than at other locations. This increases the degree of arterial contraction at the arterial puncture point, accelerates the closure of the artery at the arterial puncture point, and effectively improves the hemostasis effect. Compression of the epidermal puncture point can effectively prevent blood from seeping out of the microvessels in the muscle tissue from the epidermal puncture point, further improving the hemostasis effect.

[0008] Furthermore, the pressing mechanism includes a pressing block disposed below the substrate and a transmission component disposed on the substrate for driving the pressing block to move along the thickness direction of the substrate.

[0009] Furthermore, the transmission assembly includes an outer cylinder arranged along the thickness of the substrate and an inner cylinder arranged coaxially with the outer cylinder. The lower end of the outer cylinder is rotatably connected to the substrate. The inner wall of the outer cylinder is provided with an internal thread. The outer wall of the inner cylinder is provided with an external thread that mates with the internal thread on the inner cylinder. The substrate is provided with a through hole for the inner cylinder to pass through. The lower end of the inner cylinder extends into the lower part of the substrate through the through hole and is fixedly connected to the pressure block.

[0010] When the outer cylinder is rotated, the inner cylinder, under the threaded engagement, drives the pressure block to move downwards and compress the skin surface around the puncture point.

[0011] Furthermore, the arterial compression mechanism includes an inner rod coaxially arranged with the inner cylinder and an arterial pressure head disposed at the lower end of the inner rod. The outer wall of the inner rod is threadedly connected to the inner wall of the inner cylinder. The pressure block is provided with a through hole coaxial with the inner cylinder for the inner rod and the arterial pressure head to pass through. The upper end of the inner rod extends upward outside the inner cylinder, and the lower end of the inner rod extends downward outside the inner cylinder.

[0012] After rotating the outer cylinder to bring the pressure block into contact with and press on the skin surface around the puncture point, rotate the inner rod to move the arterial pressure head downwards and press on the skin surface at the arterial puncture point. This makes the pressure at the arterial puncture point greater than the pressure at other parts of the body, effectively improving the hemostasis effect.

[0013] Furthermore, the skin pressing mechanism includes a sliding plate disposed on the substrate, a screw disposed along the thickness direction of the substrate and threadedly connected to the sliding plate, and a skin pressing head disposed at the lower end of the screw. A through groove is disposed on the substrate along the thickness direction of the substrate. The length direction of the through groove is parallel to the width direction of the substrate and is disposed radially along the inner cylinder. A second through groove is disposed on the pressing block along the thickness direction of the substrate and aligned with the first through groove. The sliding plate is located in the first through groove and slidably connected to the substrate. A threaded through hole is disposed on the sliding plate and threadedly engaged with the screw. The screw passes through the threaded through hole and the skin pressing head is located in the second through groove.

[0014] When the arterial pressure head is aligned with and presses against the skin at the arterial puncture point, the slide plate can be slid to align the epidermal pressure head with the epidermal puncture point. After pulling out the vascular sheath, the screw is rotated to lower the epidermal pressure head and press against the epidermal puncture point.

[0015] Furthermore, the two inner walls of the through groove one, which are parallel to the width direction of the substrate, are recessed along the width direction of the substrate. The two sides of the slide plate are respectively provided with sliders that slide in cooperation with the corresponding slide grooves, so that the slide plate can slide in the through groove one along the width direction of the substrate.

[0016] Furthermore, the restraint strap is a flexible strap with Velcro fasteners.

[0017] Furthermore, the substrate is a rigid transparent plate.

[0018] Furthermore, a sterile cotton pad is provided on the skin pressure head.

[0019] Furthermore, the pressure block is made of transparent silicone.

[0020] Compared with the prior art that applies overall pressure to the puncture site, the present invention has at least the following beneficial effects:

[0021] 1. In this method, the arterial indenter and the epidermal indenter are used to independently compress the arterial puncture point and the epidermal puncture point, respectively. This results in greater pressure on the artery at the arterial puncture point and the epidermal puncture point than at other locations, increasing the degree of arterial vasoconstriction at the arterial puncture point and accelerating the closure of the artery at the arterial puncture point, thus effectively improving the hemostasis effect. The epidermal indenter can effectively prevent blood from the microvessels in the muscle tissue from seeping out of the epidermal puncture point, further improving the hemostasis effect.

[0022] 2. In this scheme, when the arterial pressure head is aimed at the arterial puncture point and applied pressure, the epidermal puncture point and the external vascular sheath are both located in the second channel. The pressure block avoids the vascular sheath and will not compress the vascular sheath, making it easy to remove the vascular sheath. The epidermal puncture point can be wiped and disinfected through the second channel.

[0023] 3. In this method, when the arterial pressure head is aligned with and presses the skin at the arterial puncture point, the slide plate can be slid to align the epidermal pressure head with the epidermal puncture point. This can satisfy the use of different distances between the arterial puncture point and the epidermal puncture point after puncture at different puncture angles. This allows for adjustment to compress the arterial puncture point and the epidermal puncture point after puncture at different puncture angles, thereby improving the hemostatic effect. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0025] In the attached diagram:

[0026] Figure 1 This is a schematic diagram of the structure of a hemostasis device after cardiac interventional surgery according to the present invention, viewed from the main view.

[0027] Figure 2 for Figure 1 Sectional view of AA.

[0028] Figure 3 for Figure 1 BB section view.

[0029] Figure 4 This is a schematic diagram of the interaction between the sliding plate and the base plate in the main view direction.

[0030] Figure 5 This is a schematic diagram of the pressure block structure from a top-down view.

[0031] Figure 6 This is a schematic diagram of the structure of the hemostasis device after cardiac interventional surgery of the present invention in the left view direction during operation.

[0032] The meanings of the labels in the attached diagram are as follows:

[0033] Substrate-10; Through-hole 1-101; Through-slot 1-102; Slide-103;

[0034] Restraint strap -20;

[0035] Pressure block-31; Through-hole 2-311; Through-slot 2-312; Outer cylinder-321; Inner cylinder-322;

[0036] Inner rod-401; Arterial pressure head-402;

[0037] Slide plate - 501; Threaded through hole - 5011; Slider - 5012; Screw - 502; Surface pressure head - 503;

[0038] Skin - 61; Epidermal puncture point - 611; Artery - 62; Artery puncture point - 621; Muscle tissue - 63;

[0039] Vascular sheath-70. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0042] This embodiment provides a hemostatic device for post-cardiac interventional procedures, such as... Figures 1-6 As shown, it includes a base plate 10, a restraint strap 20 disposed on the base plate 10 for binding the base plate 10 to the patient's limb at the puncture site, a compression mechanism disposed on the base plate 10 for compressing the tissue at the puncture site, an arterial compression mechanism for compressing the arterial puncture point 621, and an epidermal compression mechanism for compressing the epidermal puncture point 611.

[0043] The substrate 10 is a "U"-shaped plate including a horizontal part and inclined parts on both sides of the horizontal part. To facilitate observation of the puncture point, the substrate 10 is a rigid transparent plate, such as a transparent acrylic plate. Both ends of the substrate 10 are connected to flexible restraint straps 20. Velcro is provided on the restraint straps 20 at both ends of the substrate 10 to facilitate binding the substrate 10 to the patient's limb.

[0044] The pressing mechanism includes a pressing block 31 disposed below the horizontal portion of the substrate 10 and a transmission assembly disposed on the substrate 10 for driving the pressing block 31 to move along the thickness direction of the substrate 10. The pressing block 31 is a circular block made of transparent silicone. The transmission assembly includes an outer cylinder 321 disposed along the thickness of the horizontal portion of the substrate 10 and an inner cylinder 322 disposed coaxially with the outer cylinder 321. Both the outer cylinder 321 and the inner cylinder 322 are cylindrical bodies with open ends. The lower end of the outer cylinder 321 is rotatably connected to the substrate 10. The inner wall of the outer cylinder 321 is provided with an internal thread. The outer wall of the inner cylinder 322 is provided with an external thread that mates with the internal thread on the inner cylinder 322. The inner cylinder 322 and the outer cylinder 321 are threadedly connected. The substrate 10 is provided with a through hole 101 for the inner cylinder 322 to pass through. The lower end of the inner cylinder 322 extends into the lower part of the substrate 10 through the through hole 101 and is fixedly connected to the upper surface of the pressing block 31. When the outer cylinder 321 is rotated, the inner cylinder 322, under the threaded engagement, drives the pressure block 31 to move downwards and press against the skin surface 61 around the puncture point.

[0045] The arterial compression mechanism includes an inner rod 401 coaxially arranged with the inner cylinder 322 and an arterial pressure head 402 disposed at the lower end of the inner rod 401 for compressing the skin surface 61 corresponding to the arterial puncture point 621 on the artery 62. The arterial pressure head 402 is coaxially rotatably connected to the lower end of the inner rod 401. The inner wall of the inner cylinder 322 is provided with an internal thread, and the outer wall of the inner rod 401 is provided with a corresponding external thread, so that the outer wall of the inner rod 401 is threadedly connected to the inner wall of the inner cylinder 322. The pressure block 31 is provided with a through hole 311 coaxial with the inner cylinder 322 for the inner rod 401 and the arterial pressure head 402 to pass through. The upper end of the inner rod 401 extends upward outside the inner cylinder 322, and the lower end of the inner rod 401 extends downward outside the inner cylinder 322. When the outer cylinder 321 is rotated to make the pressure block 31 contact and press the skin 61 surface around the puncture site, the inner rod 401 is then rotated to move the arterial pressure head 402 downward to press the skin 61 surface at the arterial puncture point 621, so that the pressure at the arterial puncture point 621 is greater than the pressure at other parts, effectively improving the hemostasis effect.

[0046] like Figures 2-5As shown, the epidermal compression mechanism includes a sliding plate 501 disposed on the base plate 10, a screw 502 disposed along the thickness direction of the base plate 10 and threadedly connected to the sliding plate 501, and an epidermal compression head 503 disposed at the lower end of the screw 502. The epidermal compression head 503 is coaxially rotatably connected to the lower end of the screw 502. A sterile cotton is disposed on the epidermal compression head 503. A through groove 102 is provided on the horizontal part of the base plate 10 along the thickness direction of the base plate 10. The length direction of the through groove 102 is parallel to the width direction of the base plate 10 and is arranged radially along the inner cylinder 322. When this device is in use, the width direction of the base plate 10 is consistent with the length direction of the patient's limb. Figure 2 , Figure 4 As shown, the two inner walls of the through groove 102, parallel to the width direction of the substrate 10, are each recessed with a groove 103 along the width direction of the substrate 10. Slider blocks 5012 are respectively provided on both sides of the slide plate 501, which slide in cooperation with the corresponding groove 103, allowing the slide plate 501 to slide within the through groove 102 along the width direction of the substrate 10. The slide plate 501 is slidably connected to the substrate 10 within the through groove 102. The slide plate 501 is provided with a threaded through hole 5011 that engages with the screw 502 for threaded transmission. Figure 3 , Figure 5 As shown, the pressure block 31 has a second through groove 312 aligned with the first through groove 102 along the thickness direction of the substrate 10. The screw 502 passes through the threaded through hole 5011 and positions the epidermal pressure head 503 within the second through groove 312. When the arterial pressure head 402 is aligned with and presses the skin 61 at the arterial puncture point 621, the sliding plate 501 can be slid to align the epidermal pressure head 503 with the epidermal puncture point 611. After the vascular sheath 70 is pulled out, the screw 502 is rotated to lower the epidermal pressure head 503 and press the epidermal puncture point 611.

[0047] In this procedure, based on the patient's body size and the puncture angle, the pressure block 31 is pressed onto the patient's puncture site so that the through-hole 311 corresponds to the arterial puncture point 621. The base plate 10 is then secured to the patient's limb using the restraint strap 20. Rotating the outer cylinder 321 causes the pressure block 31 to move downwards and press firmly against the patient's skin 61. Next, rotating the inner rod 401 causes the arterial pressure head 402 to press downwards and press firmly against the skin 61 at the arterial puncture point 621. The arterial puncture point 621 of the arterial vessel 62 is subjected to... The increased pressure accelerates the closure of the artery 62 at the arterial puncture point 621. At this time, the vascular sheath 70 is located in the through groove 312, and the pressure block 31 does not compress the vascular sheath 70. The sliding block 5012 is aligned with the epidermal puncture point 611. The screw 502 is adjusted so that the epidermal pressure head 503 passes through the patient's skin 61. Then, the vascular sheath 70 is pulled outward, and the screw 502 is rotated to move the epidermal pressure head 503 down to press firmly on the epidermal puncture point 611 on the skin 61.

[0048] Compared with the prior art that only applies pressure to the puncture site, the present invention has at least the following beneficial effects:

[0049] 1. In this scheme, the arterial indenter 402 and the epidermal indenter 503 independently compress the arterial puncture point 621 and the epidermal puncture point 611, respectively. This results in the artery experiencing greater pressure at the arterial puncture point 621 and the epidermal puncture point 611 than at other locations. This increases the degree of contraction of the arterial vessel 62 at the arterial puncture point 621, accelerates the closure speed of the arterial vessel 62 at the arterial puncture point 621, and effectively improves the hemostasis effect. The compression of the epidermal indenter 503 at the epidermal puncture point 611 can effectively prevent blood from seeping out of the microvessels in the muscle tissue 63 from the epidermal puncture point 611, further improving the hemostasis effect.

[0050] 2. In this scheme, when the arterial pressure head 402 is aligned with the arterial puncture point 621 for compression, the epidermal puncture point 611 and the vascular sheath 70 outside the patient's body are both located in the second channel 312. The pressure block 31 avoids the vascular sheath 70 and thus does not compress the vascular sheath 70, making it convenient to remove the vascular sheath 70 and to wipe and disinfect the epidermal puncture point 611 through the second channel 312.

[0051] 3. In this scheme, when the arterial pressure head 402 is aligned with and presses the skin 61 at the arterial puncture point 621, the slide plate 501 can be slid to make the epidermal pressure head 503 aligned with the epidermal puncture point 611. This can satisfy the different distances between the arterial puncture point 621 and the epidermal puncture point 611 after puncture at different puncture angles, so that after puncture at different puncture angles, the arterial puncture point 621 and the epidermal puncture point 611 can be accurately compressed, thereby improving the hemostasis effect.

[0052] The above are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A post-cardiac intervention hemostasis device, comprising a base plate (10), a binding belt (20) arranged on the base plate (10) for binding the base plate (10) on a patient's limb at a puncture site, and a compression mechanism one arranged on the base plate (10) for compressing tissue at the puncture site, characterized in that: It also includes an arterial compression mechanism for compressing the arterial puncture point (621) and an epidermal compression mechanism for compressing the epidermal puncture point (611); ​ The pressing mechanism includes a pressing block (31) disposed below the substrate (10) and a transmission component disposed on the substrate (10) for driving the pressing block (31) to move along the thickness direction of the substrate (10). The transmission assembly includes an outer cylinder (321) arranged along the thickness of the substrate (10) and an inner cylinder (322) arranged coaxially with the outer cylinder (321). The lower end of the outer cylinder (321) is rotatably connected to the substrate (10). The inner wall of the outer cylinder (321) is provided with an internal thread. The outer wall of the inner cylinder (322) is provided with an external thread that mates with the internal thread on the inner cylinder (322). The substrate (10) is provided with a through hole (101) for the inner cylinder (322) to pass through. The lower end of the inner cylinder (322) extends into the lower part of the substrate (10) through the through hole (101) and is fixedly connected to the pressure block (31). The arterial compression mechanism includes an inner rod (401) coaxially arranged with the inner cylinder (322) and an arterial pressure head (402) disposed at the lower end of the inner rod (401). The outer wall of the inner rod (401) is threadedly connected to the inner wall of the inner cylinder (322). The pressure block (31) is provided with a through hole (311) coaxial with the inner cylinder (322) for the inner rod (401) and the arterial pressure head (402) to pass through. The upper end of the inner rod (401) extends upward outside the inner cylinder (322), and the lower end of the inner rod (401) extends downward outside the inner cylinder (322). The skin pressing mechanism includes a sliding plate (501) disposed on the substrate (10), a screw (502) disposed along the thickness direction of the substrate (10) and threadedly connected to the sliding plate (501), and a skin pressing head (503) disposed at the lower end of the screw (502). A through groove (102) is provided on the substrate (10) along the thickness direction of the substrate (10), the length direction of the through groove (102) being parallel to the width direction of the substrate (10) and along the inner cylinder (322). Radial arrangement, the pressure block (31) has a second through groove (312) aligned with the first through groove (102) along the thickness direction of the substrate (10), the slide plate (501) is located in the first through groove (102) and slidably connected to the substrate (10), the slide plate (501) has a threaded through hole (5011) that is threadedly engaged with the screw (502), the screw (502) passes through the threaded through hole (5011) and the skin pressure head (503) is located in the second through groove (312); On the two inner walls of the through groove (102) that are parallel to the width direction of the substrate (10), there are grooves (103) recessed along the width direction of the substrate (10). The two sides of the slide plate (501) are respectively provided with sliders (5012) that slide in cooperation with the corresponding grooves (103), so that the slide plate (501) can slide radially along the inner cylinder (322) in the through groove (102).

2. The hemostatic device after cardiac interventional surgery according to claim 1, characterized in that: The restraint strap (20) is a flexible strap, and Velcro is provided on the restraint strap (20).

3. The hemostatic device after cardiac interventional surgery according to claim 1, characterized in that: The substrate (10) is a rigid transparent plate.

4. The hemostatic device after cardiac interventional surgery according to claim 1, characterized in that: The skin pressure head (503) is equipped with disinfectant cotton.

5. A hemostatic device for post-cardiac interventional procedures according to claim 1, characterized in that: The pressure block (31) is made of transparent silicone.

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