CN110353755B

CN110353755B - Hemostatic plaster

Info

Publication number: CN110353755B
Application number: CN201910648245.8A
Authority: CN
Inventors: 李伟; 姚兰; 汤义; 刘鲲鹏; 王宝宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-10-16
Anticipated expiration: 2039-07-18
Also published as: CN110353755A; WO2021008004A1

Abstract

Providing a hemostatic patch comprising: a first layered element; a second laminar element having a first surface and a second surface, the first surface being connected to the first laminar element, the second surface having an adhesive material disposed thereon, the second laminar element having a through-hole disposed therein; a pressure applying member disposed within the through-hole and having one end connected to the first laminar member and the other end connected to a hemostatic member; and a hemostatic element; wherein the hemostatic element is substantially located in the through hole when the hemostatic patch is in an operative state. The hemostatic patch can be tightly attached to a part to be hemostatic and the periphery of the part to be hemostatic without gaps, can provide larger adhesion and is beneficial to miniaturization.

Description

Hemostatic plaster

Technical Field

The invention relates to a hemostatic patch, belongs to the field of medical instruments, and particularly relates to a disposable pressure hemostatic patch.

Background

Arteriovenous blood sampling is a common examination item. After blood sampling, the needle hole is often pressed by a patient or others to stop bleeding by using a cotton swab, a cotton ball and the like. Subcutaneous congestion and even infection are easy to occur when the pressure is not in place. If the infant cries after blood sampling, pressing to stop bleeding is more difficult. If the bare limb is pressed for a long time in cold winter, cold catching may also occur.

In daily life, pressure hemostasis is also needed for the skin to be collided and damaged to bleed, but the conventional band-aid, wound dressing and the like on the market cannot play the role.

To overcome these drawbacks, various elastic pressure hemostatic patches have been developed. For example, chinese patent application No. 200620074135.3 discloses a hemostatic adhesive plaster for human vein pinhole, wherein an elastic absorbent body is adhered to the medical adhesive plaster. Chinese patent application No. 201820133673.8 discloses a compression hemostatic plaster, wherein the hemostatic plaster body sequentially comprises a connecting portion, an elastic bag and hemostatic cotton from top to bottom. Chinese patent application No. 201510066229.X discloses a pressure adjustable hemostatic patch that adjusts pressure by rotating a press plug. In addition, some hemostatic patches have complicated structures and are troublesome to operate, and the manufacturing cost and the use cost are increased.

The hemostatic patch described above overcomes some of these drawbacks to some extent, but still suffers from one or more of the following disadvantages:

1. the elastic pressure body protrudes out of the base band, a certain gap exists between the base band around the elastic pressure body and the skin when the hemostatic device is used, the base band cannot be flatly adhered to the skin, the base band is easily separated from the skin of a human body, and the hemostatic effect and/or the miniaturization of the hemostatic device are affected;

2. the pressure is fixed, the pressure can not be adjusted according to different parts and different types of wounds, and the applicability is poor;

3. the pressing time cannot be controlled, and some parts or patients cannot be pressed for a long time, otherwise, the risk of ischemic necrosis of tissues exists, and the safety is poor;

4. the product has the advantages of complex structure, complex operation, large volume, poor use experience and high cost.

Therefore, there is a need to develop a hemostatic patch to solve one or more of the above-mentioned technical problems.

Disclosure of Invention

In order to solve one or more technical problems in the prior art, the present invention provides a hemostatic patch, which is characterized by comprising:

a first laminar element having a first thickness;

a second laminar element having a second thickness and having a first surface and a second surface, the first surface being connected to the first laminar element, the second surface having an adhesive material disposed thereon, the second laminar element having a through-hole disposed therein;

a retractable pressure-applying element disposed within the through-hole and having one end connected to the first laminar element and the other end connected to a hemostatic element; and

a hemostatic element;

wherein the hemostatic element is substantially located in the through hole when the hemostatic patch is in an operative state.

The hemostatic patch can be tightly attached to the part to be hemostatic and the periphery thereof without gaps, can provide higher adhesion and is beneficial to miniaturization

According to another aspect of the invention, the pressure applying element comprises a resilient, elastic element.

According to yet another aspect of the invention, the pressure applying element comprises a spring.

According to a further aspect of the invention, the first laminar element and the second laminar element are integrally formed.

According to yet another aspect of the invention, the patch further comprises a protective member detachably connected to the second surface of the second laminar member.

According to yet another aspect of the invention, the protective element is a protective cage.

According to yet another aspect of the invention, the hemostatic patch includes two or more hemostatic elements stacked in sequence and separable, the two or more hemostatic elements having contact surfaces of the same area or having contact surfaces of different areas.

According to yet another aspect of the invention, the contact surfaces of the two or more hemostatic elements decrease from top to bottom.

According to yet another aspect of the invention, a circumferential partition line is provided on the two or more hemostatic elements.

According to yet another aspect of the invention, the hemostatic patch is preferably round, square, or heart-shaped.

According to a further aspect of the invention, the protective element is preferably provided with a protruding portion.

According to a further aspect of the invention, the hemostatic element and the pressure applying element preferably have a predetermined clearance from the inner surface of the through hole.

According to another aspect of the present invention, the hemostatic patch preferably further comprises a timer and a warning unit.

According to a further aspect of the invention, the timer and the first laminar element are preferably integrally provided.

According to another aspect of the present invention, the hemostatic patch preferably further includes a pressure sensing unit and a time setting unit, wherein the time setting unit sets the compression hemostasis time according to the pressure sensed by the pressure sensing unit.

According to yet another aspect of the invention, the hemostatic patch is preferably a disposable hemostatic patch.

According to still another aspect of the present invention, the timer automatically starts timing according to when the pressure sensed by the pressure sensing unit is within a predetermined range.

According to a further aspect of the invention, the second thickness of the second laminar element is preferably adjustable, the second laminar element preferably comprising two or more separable stacked units.

According to another aspect of the present invention, there is also provided a hemostatic patch, characterized by consisting of:

a first layered element;

a second laminar element having a first surface and a second surface, the first surface being connected to the first laminar element, the second surface having an adhesive material disposed thereon, the second laminar element having a through-hole disposed therein;

a pressure applying member disposed within the through-hole and having one end connected to the first laminar member and the other end connected to a hemostatic member;

a hemostatic element; and

a protective element detachably connected to the second surface of the second laminar element;

Compared with the prior art, the invention has one or more of the following technical effects:

1) the hemostatic element is accommodated in the through hole and does not protrude out of the second surface of the second layered element during operation, the hemostatic patch is tightly attached to the skin, and the adhesive force can be increased, and meanwhile, the adhesive area and the product miniaturization are facilitated;

2) the product has simple structure, simple manufacturing process and low cost;

3) the pressure regulation on unit area can be realized, the regulating element and the regulating method are simple, and the use experience is better;

4) the timing alarm reminding can be realized, and the timing time or the pressing time can be automatically set;

5) the telescopic elastic element can enable the hemostatic element to extend out of the through hole by a preset length under the action of gravity and/or elasticity, and a user can align the hemostatic element to a position to be hemostatic.

Drawings

So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments. The drawings relate to preferred embodiments of the invention and are described below:

FIG. 1 is a cross-sectional view of a hemostatic patch according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of the hemostatic patch of FIG. 1 with a protective element removed;

FIG. 3 is a schematic view of the hemostatic patch of FIG. 2 in an operating state;

FIG. 4 is a schematic view of a first layered element according to a preferred embodiment of the present invention;

FIG. 5 is a schematic view of a second laminar element according to a preferred embodiment of the present invention;

FIG. 6 is a schematic view of a hemostatic member according to a preferred embodiment of the invention;

FIG. 7 is a cross-sectional view of a hemostatic patch structure (with protective elements removed) according to another preferred embodiment of the present invention;

FIG. 8 is a cross-sectional view of a hemostatic patch structure (with protective elements removed) according to yet another preferred embodiment of the present invention;

FIG. 9 is a schematic view of the hemostatic member of the hemostatic patch according to yet another preferred embodiment of the present invention;

fig. 10 is a schematic view of a second layered component of a hemostatic patch according to yet another preferred embodiment of the invention.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Reference will now be made in detail to the various embodiments, one or more examples of which are illustrated in each figure. The examples are provided by way of explanation and are not meant as limitations. For example, features illustrated or described as part of one embodiment can be used on or in conjunction with any other embodiment to yield yet a further embodiment. It is intended that the present invention encompass such modifications and variations.

In the following description of the drawings, the same reference numerals indicate the same or similar components. Generally, only the differences between the individual embodiments will be described. Descriptions of parts or aspects in one embodiment can also be applied to corresponding parts or aspects in another embodiment, unless explicitly stated otherwise.

Referring to fig. 1, a cross-sectional view of a hemostatic patch structure according to a preferred embodiment of the present invention is shown. This hemostasis paste includes: a first laminar element 1 having a first thickness; a second laminar element 2 having a second thickness and having a first surface connected to the first laminar element 1 and a second surface provided with an adhesive material, the second laminar element 2 being provided with a through hole; a retractable pressure-applying member 3 disposed within the through-hole and having one end connected to the first laminar member 1 and the other end connected to a hemostatic member 4; and a hemostatic member 4.

Preferably, the second thickness is greater than the first thickness. The first thickness may be determined according to the magnitude of the force exerted by the pressure-exerting element 3 on the first laminar element 1. The second thickness may be determined in combination with the length of the pressure applying member 3 in a compressed state and the thickness of the hemostatic member.

Referring to fig. 3, fig. 3 is a schematic view of the hemostatic patch in an operating state. Preferably, the hemostatic element 4 is substantially located in the through hole when the hemostatic patch is in an operative state. Advantageously, the patch does not substantially protrude from the second surface of the second laminar element 2, which facilitates a smooth fit of the second surface to the skin 8, providing a stable adhesive force. The invention requires a smaller bonding area while providing the same bonding force, which is advantageous for miniaturization of the hemostatic patch. In contrast, prior art hemostatic patches include a large sized strip-shaped base band or adhesive strip.

It is noted that by "the hemostatic member 4 is substantially located in said through hole" it is understood that the contact surface of the hemostatic member 4 and the second surface of the second laminar member 2 are substantially in the same plane, which both enables the application of pressure and ensures that the hemostatic member 4 does not substantially protrude from the second surface of the second laminar member 2. At the same time, the term "substantially" also covers the situation where, when a large pressure is applied, the softer site to be haemostatic may be slightly displaced under the pressure, so that the haemostatic element 4 protrudes slightly beyond the second surface of the second laminar element 2. It will be appreciated that the second surface of the second laminar element 2 can fit flat around the site to be haemostatic when the haemostatic element 4 is substantially within the through hole.

Referring to fig. 2, fig. 2 is a schematic structural view of the hemostatic patch with the protective element 5 removed. The pressure-exerting element 3 can be extended by a certain distance under the influence of gravity after removal of the protective element 5. Since the pressure-applying member 3 extends a distance beyond the through hole, the user can easily see the position of the hemostatic member 4 without being obstructed by the first and second laminar members 2, which is advantageous for positioning the hemostatic member 4 to a predetermined target, and not vice versa.

The pressure-applying member 3 is in a natural elongated state or a certain compressed state after the protective member 5 is mounted. It will be appreciated that the miniaturisation and portability of the patch is facilitated when the pressure-applying member 3 is in a certain compressed state after the protective member 5 is installed.

According to another preferred embodiment, said pressure exerting element 3 comprises a resilient, elastic element or the like which is stretchable.

According to a further preferred embodiment of the invention, said pressure applying element 3 comprises a spring or the like.

According to a further preferred embodiment of the invention, said first laminar element 1 and said second laminar element 2 are integrally formed. When the first and second laminar elements 2 are integrally formed, recesses can be directly provided therein to serve as through holes in the second laminar element 2, which can reduce manufacturing processes and reduce costs.

According to a further preferred embodiment of the invention, with reference to fig. 1, the patch further comprises a protective element 5, the protective element 5 being detachably connected to the second surface of the second laminar element 2. The protective element 5 is for example a protective screen. The protective screen may be formed in the shape of a cap with a lower peripheral edge which is bonded to the second surface of the second laminar element 2, the projecting cap surrounding the hemostatic element 4 and the spring.

Referring to fig. 4, fig. 4 is a schematic view of a first layered element 1 according to a preferred embodiment of the invention. The first laminar element 1 is preferably circular, but is not limited thereto and may also be, for example, square, heart-shaped, rectangular, oval, polygonal, etc. The first laminar element 1, which is circular, square or heart-shaped, contributes to the miniaturisation of the patch. The first laminar element 1 has a smaller thickness than the second laminar element 2.

Referring to fig. 5, fig. 5 is a schematic view of a second laminar element 2 according to a preferred embodiment of the present invention. The second layer element 2 is preferably a cylinder with a through hole in the center, but is not limited thereto, and may also be, for example, a cube, a heart-shaped cylinder, a rectangular parallelepiped, an elliptical cylinder, a polygonal cylinder, or the like. The second laminar element 2 can be made, for example, of the same material as the first laminar element 1 or of a different material.

Referring to fig. 6, fig. 6 is a schematic view of a hemostatic member 4 according to a preferred embodiment of the invention. The hemostatic member 4 is preferably circular, but is not limited thereto, and may be, for example, square, heart-shaped, rectangular, oval, polygonal, or the like. Advantageously, a circular hemostatic element 4 is advantageously used to regulate the amount of pressure. The diameter of the hemostatic element 4 may be, for example, but not limited to, larger than the diameter of the spring, but smaller than the diameter of the through hole. The diameter of the hemostatic element 4 may also be equal to or smaller than the diameter of the spring, for example.

Referring to fig. 7, fig. 7 is a cross-sectional view of a hemostatic patch structure (with protective element 5 removed) according to another preferred embodiment of the present invention. The patch comprises two or more hemostatic elements 4, e.g. 3 or more, stacked one upon the other and separable. Two or more hemostatic elements 4 have different areas of contact surface. The term "contact surface" is defined as the surface that is in contact with the site to be stopped bleeding, i.e. the target site. As shown in fig. 7, the contact surface of the 3 hemostatic elements 4 decreases from top to bottom. More specifically, the hemostatic members 4 having smaller and smaller areas are stacked in order from the other end of the spring. The hemostatic element 4 with the smallest lowermost area defines the smallest pressure application area, and the smaller the force area, the greater the pressure applied under a certain spring pressure. Conversely, the lower the pressure received. That is, by selecting different areas of the hemostatic member 4, the amount of pressure per unit area of the target site can be adjusted. For example, when it is desired to provide the maximum pressure, the lowermost hemostatic element 4 is used directly, with the smallest force area and the largest compression of the spring; when it is desired to provide a minimum pressure, removing the lower two hemostatic members 4 leaves only one hemostatic member 4 with the largest contact area, where the force-receiving area is largest and the amount of compression of the spring is smallest. Preferably, the smallest hemostatic element 4 has an area of, for example, 1/2 to 1/3, even 1/4 of the area of the largest hemostatic element 4.

Referring to fig. 8, fig. 8 is a cross-sectional view of a hemostatic patch structure (with protective element 5 removed) according to yet another preferred embodiment of the present invention. The patch comprises two or more hemostatic elements 4, e.g. 3 or more, stacked one upon the other and separable. Two or more hemostatic elements 4 have the same area of contact surface. As shown in fig. 8, the contact surfaces of the 3 hemostatic members 4 are the same area.

Referring to fig. 9, fig. 9 is a schematic structural view of a hemostatic member 4 of a hemostatic patch according to yet another preferred embodiment of the present invention. The hemostatic element 4 is provided with a circumferential partition line 7. For example, one, two or more circumferential partition lines 7 are provided on at least one of the 3 hemostatic elements 4 in fig. 8. The user can easily remove a portion of the hemostatic element 4 along one or more circumferential split lines 7 to change the size of the area of the hemostatic element 4 as desired. Preferably, the area of the hemostatic element 4 may be reduced to 1/2 to 1/3, even 1/4. Preferably, one or more circumferential division lines 7 are provided on two or more of the haemostatic elements 4 remote from the spring and no division line is provided on the one haemostatic element 4 closest to the spring, but the invention is not limited thereto.

Referring again to fig. 1, the protective element 5 is preferably provided with a projection 6. The user can easily remove the protective element 5 by pinching the protruding portion 6 with the hand to take out the hemostatic element 4. The hemostatic patch is preferably round, square or heart-shaped. The hemostatic member 4 and the pressure applying member 3 preferably have a predetermined gap with the inner surface of the through hole to prevent the hemostatic member 4 from adhering to the second surface of the second laminar member 2.

According to a further preferred embodiment of the present invention, the hemostatic patch preferably further comprises a timer and an alarm unit (not shown). For venous blood sampling, less pressure and approximately 5-10 minutes or so of compression are typically required. For arterial blood sampling, more pressure and compressions of about 15-20 minutes or even longer are typically required. The press time can be set through the timer, and the user is reminded to stop pressing in time.

Preferably, said timer is provided integrally with said first laminar element 1. This is advantageous in simplifying the product structure and manufacturing process and reducing the cost.

According to another preferred embodiment of the present invention, the hemostatic patch preferably further comprises a pressure sensing unit and a time setting unit, wherein the time setting unit sets the hemostasis compression time according to the pressure sensed by the pressure sensing unit. When the sensed pressure is larger than a set first threshold value, arterial blood sampling is judged, and corresponding compression hemostasis time is set. When the sensed pressure is between the set first threshold and the second threshold, the venous blood sampling is judged, and the corresponding compression hemostasis time is set. For example, the pressure sensing unit is arranged on the spring or first laminar element 1, preferably on the hemostatic element 4. The pressure sensing unit is used for sensing the pressure applied to the target part by the hemostatic element 4 to judge whether the blood is collected from veins or arteries, and the time setting unit automatically sets corresponding timing time or pressing time according to the judgment result. The hemostatic pressure required after venous blood collection corresponds to, for example, 10 to 15mmHg per unit area, and the hemostatic pressure required after arterial blood collection corresponds to, for example, 50 to 60mmHg per unit area, to which the present invention is not limited. The intelligent hemostatic patch is suitable for high-end consumer groups. Preferably, when the pressure sensing unit senses that a predetermined range of pressure exists in the unit area, a timer is started to start timing.

There is also provided in accordance with yet another preferred embodiment of the present invention, a hemostatic patch comprised of: a first laminar element 1; a second laminar element 2 having a first surface connected to the first laminar element 1 and a second surface provided with an adhesive material, the second laminar element 2 being provided with a through-hole; a pressure-applying member 3 disposed in the through-hole, and having one end connected to the first laminar member 1 and the other end connected to a hemostatic member 4 described below; a hemostatic element 4; and a protective element 5, the protective element 5 being detachably connected to the second surface of the second laminar element 2; wherein the hemostatic element 4 is substantially located in the through hole when the hemostatic patch is in an operative state. Through simplifying the structure, can realize stopping bleeding miniaturization and the portability of pasting to the at utmost, can adapt to the general demand of vast consumer. The hemostatic patch is preferably a disposable hemostatic patch.

There is also provided in accordance with yet another preferred embodiment of the present invention, a disposable pressure haemostatic patch comprising a first laminar member 1, a second laminar member 2, a pressure applying member 3, a haemostatic member 4 and a protective member 5. The second laminar element 2 has a first surface which is connected to the first laminar element 1 and a second surface on which an adhesive material is provided, the second laminar element 2 being provided with a through-hole. A pressure-applying element 3 is arranged in said through hole and is connected at one end to the first laminar element 1 and at the other end to a hemostatic element 4 described below. The protective element 5 is detachably connected to the second surface of the second laminar element 2. Wherein the hemostatic element 4 is substantially located in the through hole when the hemostatic patch is in an operative state. The hemostatic patch can be tightly attached to a part to be hemostatic and the periphery of the part to be hemostatic without gaps, can provide larger adhesion and is beneficial to miniaturization.

The first laminar element 1 is for example a substrate and the second laminar element 2 is for example a perforated adhesive pad. The hemostatic member 4 is, for example, a water absorbent sheet. The substrate is made of a plastic sheet or an inelastic cloth sheet, for example. The central position of the pasting gasket is provided with a round hole, the first surface is pasted with the substrate with the corresponding size, and the second surface is covered with an adhesive layer. When in use, the adhesive layer and the skin 8 are smoothly and tightly adhered. The gasket may be made of a material such as foam, plastic or silicone, for example. The pressure-exerting element 3 is preferably a spring, the diameter of which is slightly smaller than the circular hole of the gasket, in which the spring is located. One end of the spring is fixed on the base body, and the other end of the spring is fixed with a water absorption sheet which can be made of cotton sheets, gauze or sponges and the like. The water absorption sheet contains medicinal components with the functions of hemostasis, pain relief and/or inflammation diminishing and the like, the length of the spring and the water absorption sheet is longer than the thickness of the gasket in a natural state, and when the spring is completely compressed, the spring and the water absorption sheet are not higher than the thickness of the gasket, namely the spring and the water absorption sheet are completely accommodated in the circular hole of the gasket, so that the gasket and the skin 8 are completely and tightly attached firmly when the water absorption sheet is used. When the water absorption sheet is taken out of a factory, the gasket and the water absorption sheet are sealed by the protective cover with the concave part, the spring is in a free extension state or a certain compression state, the protective cover can be made of plastic or paper sheets and other materials, the edge or one corner of the protective cover is divided into two parts, and the protective cover is convenient to separate from the gasket when in use.

In order to realize the pressure regulation of the target area per unit area, the absorbent sheets can be laminated in multiple layers, when a large pressure is needed, the multiple layers of the absorbent sheets are directly aligned with the wound, and when a small pressure is needed, one or more layers of the absorbent sheets are torn off and then used. When a minimum pressure is required, only the last layer of absorbent sheet is retained.

Referring to fig. 10, fig. 10 is a schematic structural view of a second layered member of the hemostatic patch according to yet another preferred embodiment of the present invention. As shown in fig. 10, the second thickness of the second laminar element 2 is adjustable. Advantageously, by adjusting the second thickness, the amount of compression of the retractable pressure applying element, e.g. a spring, during operation of the patch can be adjusted, thereby enabling adjustment of the pressure or the amount of pressure applied to the hemostatic element and to the site to be hemostatic. For example the second laminar element 2 comprises two, three or more stacked units. These laminated units can be divided by, for example, provided circumferential cutting lines 9. Alternatively, the laminated units are laminated to each other by an adhesive layer on the surface. In use, one or more of the lamination units may be easily removed along the cutting line or the adhesive layer, but is not limited thereto. Alternatively, the thickness of the second laminar element 2 may also be increased.

In order to realize timing alarm, a timer capable of sounding is fixed on the top surface of the base body, corresponding time can be set according to pressed positions and wound types, the hemostatic plaster automatically starts timing after being adhered to the skin 8, and a micro-speaker of the timer sends out alarm sound after the timing is finished. Alternatively, the washer and spring may be fixed directly to the timepiece, eliminating the base, and performing the same function.

According to another preferred embodiment of the invention, the hemostatic patch is used for intravenous needle hole compression, and hemostasis can be achieved by using small pressure. Specifically, firstly, the protective cover of the hemostatic patch is peeled off or torn off, the spring extends out of the round hole for a certain distance, the hemostatic element 4 is aligned with the needle hole, then the whole hemostatic patch is adhered to a target part, an alarm is given after the countdown is carried out for 5 to 10 minutes, and the hemostatic patch is removed to finish hemostasis. Advantageously, the use may further comprise the step of removing the hemostatic element 4 to adjust the pressure and/or the step of adjusting the area of the hemostatic element 4.

According to another preferred embodiment of the invention, the hemostatic patch is used for compressing the artery blood sampling needle hole, and the hemostasis is compressed by a larger pressure. Specifically, the protective cover of the hemostatic patch is peeled off, the spring extends out of the round hole for a certain distance, the hemostatic element 4 is aligned with the needle hole, then the whole hemostatic patch is adhered to the target part, and after 10-20 minutes, the hemostatic patch is removed to finish hemostasis. Advantageously, the use may further comprise the step of removing the hemostatic element 4 to adjust the pressure and/or the step of adjusting the area of the hemostatic element 4. Advantageously, the device can also automatically start timing through a timer, automatically set the compression time and remind the user of the completion of hemostasis.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention, and the features of the embodiments that do not violate each other may be combined with each other. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hemostatic plaster, characterized by comprising:

a first laminar element having a first thickness and lying in a first plane;

a second laminar element having a second thickness and lying in a second plane, the second laminar element having a first surface and a second surface, the first surface and the second surface being planar, the first surface being connected to the first laminar element, the second surface having an adhesive material disposed thereon, the second laminar element having a through-hole disposed therein;

a hemostatic element;

wherein the hemostatic element is substantially located in the through hole when the hemostatic patch is in an operating state, the pressure applying element and the hemostatic element are naturally extendable out of the through hole by a predetermined length, the second thickness is equal to the height of the through hole, the second laminar element comprises two or more separable laminar units, and one or more laminar units are removable in use for adjusting the height of the through hole and the amount of compression of the pressure applying element during operation of the hemostatic patch.

2. The hemostatic patch according to claim 1, wherein the pressure applying member comprises a resilient, elastic member that is stretchable.

3. The hemostatic patch according to claim 2, wherein the pressure applying member comprises a spring.

4. The hemostatic patch according to any one of claims 1 to 3, characterized in that the first laminar member and the second laminar member are integrally formed.

5. The hemostatic patch according to any one of claims 1-3, further comprising a protective member detachably attached to the second surface of the second laminar member.

6. The hemostatic patch according to claim 5, wherein the protective element is a protective shield.

7. The hemostatic patch according to claim 5, wherein the hemostatic patch comprises two or more hemostatic elements stacked in sequence and separable, the two or more hemostatic elements having contact surfaces of the same area or having contact surfaces of different areas, the hemostatic elements being removable to regulate pressure during use.

8. The hemostatic patch according to claim 7, wherein the contact surfaces of the two or more hemostatic members decrease from top to bottom in order to adjust the amount of pressure per unit area of the target site by selecting hemostatic members with different contact surfaces by removing the hemostatic members.

9. The patch of claim 7, wherein the two or more hemostatic members have a circumferential cut line disposed thereon, and wherein in use a portion of the hemostatic members are removable along the circumferential cut line to vary the size of the area of the hemostatic members.

10. The hemostatic patch according to any one of claims 1-3, characterized in that the second thickness of the second laminar member is adjustable.

11. The hemostatic patch according to any one of claims 1-3, wherein the hemostatic patch is circular, square or heart shaped.

12. The hemostatic patch according to claim 5, wherein the protective member is provided with a protruding portion.

13. The hemostatic patch according to any one of claims 1 to 3, wherein a predetermined gap exists between the hemostatic member and the pressure applying member and the inner surface of the through hole.

14. The hemostatic patch according to any one of claims 1-3, wherein the hemostatic patch further comprises a timer and a warning unit.

15. The hemostatic patch according to claim 14, wherein the timer and the first laminar member are integrally provided.

16. The hemostatic patch according to claim 15, further comprising a pressure sensing unit and a time setting unit.

17. The hemostatic patch according to claim 16, wherein the pressure sensing unit is configured to sense a pressure applied to the target site by the hemostatic element, the time setting unit sets a hemostasis compression time according to the pressure sensed by the pressure sensing unit, determines arterial blood collection and sets a corresponding first hemostasis compression time when the sensed pressure is greater than a set first threshold, and determines venous blood collection and sets a corresponding second hemostasis compression time when the sensed pressure is between the set first threshold and a set second threshold.

18. The hemostatic patch according to claim 17, wherein the timer automatically starts counting time according to the pressure sensed by the pressure sensing unit within a predetermined range.

19. The hemostatic patch according to any one of claims 1-3, wherein the hemostatic patch is a disposable hemostatic patch.