CN219439276U - A hemostatic device for arteriovenous fistula - Google Patents

Abstract

The utility model provides a hemostasis device for arteriovenous fistula, which belongs to the technical field of medical equipment; it comprises a base, which is provided with Velcro straps, the top of the base is threadedly connected with a screw rod, and the bottom of the base is fixedly connected with a support seat, the support seat The accommodating cavity is formed with the base, and a compression assembly for pressing the puncture point is also included, and the compression assembly is connected with the bottom of the screw rod. The utility model is provided with a support seat, a moving block, a two-way screw rod, a fixed block, a pressing plate and a pressing block, so that before wearing, the pressing assembly can be adjusted according to the position of the puncture point, and the rotation direction of the two-way screw rod can be controlled. Adjust the distance between a pair of pressure plates, and turn the screw to make the moving block press down, and at the same time drive a pair of pressure plates to press down to stop bleeding at the puncture point, so that the two puncture points can be compressed at the same time.

Description

Arteriovenous fistula hemostatic device

technical field

The utility model relates to the technical field of medical instruments, in particular to a hemostasis device for arteriovenous fistula.

Background technique

The arterial or venous puncture needle (16G) used by dialysis patients is much thicker than the ordinary venous infusion needle (No. 7), and because the vein of the internal fistula has become arterialized, the pressure in the vein is high. Bleeding is prone to occur, so the correct method of compression and hemostasis is an important part of maintaining internal fistula. At present, the commonly used compression hemostasis methods for internal fistula are elastic bandage plus gauze ball and elastic bandage plus gauze ball combined with acupressure.

In the prior art, the Chinese patent document with the publication number CN215778343U proposes a radial artery compression hemostat that can quantify the compression strength. When the doctor uses the hemostat, the pressure-sensitive structure can move up and down by turning the knob. The compression force generated by the device can be displayed in digital form on the pressure display screen. There is an intuitive and quantitative cognition of the compression force, which is convenient for doctors to operate, reduces bleeding complications and pain of patients, even if they are inexperienced. Doctors can also use the hemostat correctly.

The above-mentioned radial artery compression hemostat that can quantify the compression strength can only compress one puncture point. When the patient establishes two puncture points, he needs to wear multiple hemostats, which is not very inconvenient to operate. Therefore, this application provides An arteriovenous fistula hemostatic device to meet the hemostatic healing needs of the wound site of the patient.

Therefore, the present application provides a hemostatic device for arteriovenous fistula to meet the demand.

Utility model content

The technical problem to be solved by the utility model is to provide a hemostatic device for arteriovenous fistula to solve the problem that the existing hemostat can only compress one puncture point, and when the patient establishes two puncture points, he needs to wear multiple hemostats device, the operation is not very inconvenient.

In order to solve the above technical problems, the utility model provides the following technical solutions:

A hemostatic device for arteriovenous fistula, comprising a base, the base is provided with Velcro straps, the top of the base is threadedly connected with a screw rod, the bottom of the base is fixedly connected with a support base, the support base and the The base forms an accommodating cavity, and also includes a pressing assembly for pressing the puncture point, and the pressing assembly is connected with the bottom of the screw rod.

Preferably, the pressing assembly includes a moving block rotatably connected to the bottom end of the screw, a two-way screw rod is rotatably connected to the inner cavity of the moving block, and a roller is fixedly sleeved at the central position of the two-way screw rod, The left and right ends of the two-way screw rod extend to the outside of the moving block, and are slidably connected with a fixed block, and a first cavity is opened in the fixed block, and the side walls of the left and right ends of the moving block are fixedly connected with A guide rod, the outer end of the guide rod extends into the first cavity, the bottom of the fixed block is fixedly connected with a pressure plate, the bottom wall of the pressure plate is provided with an installation groove, and the installation groove is fixedly connected with a Press the block, a pair of guide holes are opened on the side wall of the support seat, a limit rod is fixed at the position corresponding to the side wall of the moving block and the guide hole, and the outer end of the limit rod extends to penetrate the the pilot hole.

Preferably, a second cavity is opened on the bottom inner wall of the first cavity, the outer end of the two-way screw rod extends into the second cavity, and a second cavity is opened on the side wall of the second cavity. The socket, the outer end of the two-way screw rod is slidably connected with the socket through threads.

Preferably, the outer end of the pressing plate is arranged in an arc shape.

Preferably, the bottom of the support seat is arranged in an arc shape, and both ends of the bottom of the support seat and the connection with the base are arranged with rounded corners.

Preferably, a through hole is opened on the bottom wall of the support seat.

Preferably, the pressing block is made of silica gel.

Preferably, the hexagonal joint at the top of the screw is rounded.

Compared with the prior art, the utility model has at least the following beneficial effects:

In the above scheme, through the cooperation of the support seat, moving block, two-way screw rod, fixed block, pressing plate and pressing block, the compression assembly can be adjusted according to the position of the puncture point before wearing, and the rotation of the two-way screw rod can be controlled. The distance between a pair of pressure plates can be adjusted in the direction, and the moving block is pressed down by screwing the screw, and at the same time, a pair of pressure plates are driven down to compress the puncture point to stop bleeding, so that the two puncture points can be simultaneously compressed.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with the description, serve to further explain the principles of the disclosure and to enable those skilled in the relevant art to make and use the disclosure.

Fig. 1 is a three-dimensional structural schematic diagram of an arteriovenous fistula hemostasis device;

Fig. 2 is a three-dimensional structural schematic diagram of the base of the arteriovenous fistula hemostasis device and the pressing component in cooperation with the first viewing angle;

Fig. 3 is a three-dimensional schematic diagram of the base of the arteriovenous fistula hemostatic device and the pressing assembly in cooperation with the second viewing angle;

Fig. 4 is a schematic diagram of an enlarged three-dimensional structure of a pressing assembly;

Fig. 5 is a schematic diagram of an enlarged three-dimensional structure of a support seat.

[reference sign]

1. Base; 2. Velcro strap; 3. Support seat; 4. Screw; 5. Press plate; 6. Press block; 7. Fixed block; 8. Guide rod; 9. Two-way screw; 10. Roller; 11 , moving block; 12, guide hole; 13, through hole; 14, limit rod.

As shown in the figure, in order to clearly realize the structure of the embodiment of the present utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes, and is not intended to limit the present utility model to this specific structure, device and device. environment, according to specific needs, those skilled in the art can adjust or modify these devices and environments, and the adjustments or modifications are still included in the scope of the appended claims.

Detailed ways

The hemostatic device for arteriovenous fistula provided by the utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also adopt other alternative ways to implement for some known technologies; and the accompanying drawings It is only for more specific description of the embodiment, but not intended to specifically limit the present utility model.

It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiment," "some embodiments," etc. indicate that the described embodiments may include particular features, structures, or characteristics, but Not every embodiment includes that particular feature, structure or characteristic. In addition, when a particular feature, structure or characteristic is described in connection with an embodiment, it should be within the knowledge of those skilled in the relevant art to implement such feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).

In general, a term can be understood at least in part from its usage in context. For example, the term "one or more" as used herein may be used to describe any feature, structure or characteristic in the singular or may be used to describe a combination of features, structures or characteristics in the plural, depending at least in part on the context. Additionally, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead allow for the presence of other factors not necessarily expressly described, depending at least in part on the context.

As used herein, the term "nominal" refers to an expected or target value for a characteristic or parameter of a component or process operation set during the design phase of a production or manufacturing process, and above and/or below range of expected values. The range of values may be due to slight variations in manufacturing process or tolerances. As used herein, the term "about" indicates a value for a given quantity that may vary based on the particular technology node associated with the subject semiconductor device. The term "about" may indicate a value of a given quantity that varies, for example, within 5%-15% of the value (eg, ±5%, ±7%, or ±15% of the value) based on the particular technology node.

It will be appreciated that the meanings of "on", "over" and "above" in this disclosure should be read in the broadest possible manner such that "on" means not only "Directly on" something also includes the meaning of "on" something with an intervening feature or layer in between, and "on" or "over" not only means "on" something The meaning of "on" or "over" and may also include its meaning of "on" or "over" something without intervening features or layers in between.

In addition, spatial relative terms such as "under", "beneath", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship between one element or feature and another. The relationship of one or more elements or features as shown in the drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. A device may be otherwise oriented and spatially relative descriptors used herein similarly interpreted accordingly.

As shown in Fig. 1, Fig. 2 and Fig. 5, the embodiment of the present utility model provides a hemostatic device for arteriovenous fistula, which includes a base 1, on which a Velcro strap 2 is arranged, through which the two sides of the Velcro stick Cooperate with the paste, so that the base 1 can be worn on the arms of patients of different sizes, which improves the practicability. The top of the base 1 is threaded with the screw 4, and the screw 4 and the base 1 are threaded, so the pressure on the puncture point can be precisely controlled. Pressure, to avoid thrombus or internal fistula compression due to excessive compression, the hexagonal joint at the top of the screw 4 is arranged with rounded corners, and the top corners of the screw 4 are rounded, which can effectively improve the comfort when screwing , the bottom of the base 1 is fixedly connected with the support seat 3, the support seat 3 and the base 1 form an accommodation cavity, the bottom of the support seat 3 is arranged in a circular arc shape, and the two ends of the bottom of the support seat 3 and the connection with the base 1 are inverted Arranged with rounded corners, the arc shape at the bottom of the support seat 3 can fit the skin of the patient's arm, and the corners arranged with rounded corners can effectively avoid the corners from scratching the patient's skin. The bottom wall of the support seat 3 is provided with a through hole 13, The through hole 13 is convenient for the nurse to adjust the compression assembly according to the position of the puncture point, and also includes a compression assembly for compressing the puncture point. Insert the hand into the through hole 13 to adjust the compression assembly. After the adjustment, the nursing staff places the support seat 3 in the middle of the two puncture points, and the support seat 3 fits the patient's arm, and the Velcro strap 2 is used to attach the support seat 3 to the patient's arm. The base 1 is worn on the patient's arm.

As shown in Fig. 2, Fig. 3 and Fig. 4, the compression assembly includes a moving block 11 that is rotatably connected to the bottom end of the screw rod 4, and the inner cavity of the moving block 11 is rotatably connected with a two-way screw rod 9, and the central position of the two-way screw rod 9 is The roller 10 is fixedly sleeved, and the left and right ends of the two-way screw rod 9 extend to the outside of the moving block 11, and are slidably connected with the fixed block 7. distance, the position of the fixed block 7 is adjusted so that the fixed block 7 is located above the two puncture points, the first cavity is opened in the fixed block 7, and the side walls at the left and right ends of the movable block 11 are fixedly connected with guide rods 8 , the outer end of the guide rod 8 extends into the first cavity, the bottom inner wall of the first cavity is provided with a second cavity, the outer end of the two-way screw rod 9 extends into the second cavity, the second cavity A jack is provided on the side wall, and the outer end of the two-way screw rod 9 is slidably connected with the jack through a screw thread. The bottom of the fixed block 7 is fixedly connected with a pressing plate 5. The arc shape can improve wearing comfort and reduce the risk of scratching the patient. The bottom wall of the pressure plate 5 is provided with a mounting groove, and a pressing block 6 is fixedly connected to the mounting groove. The pressing block 6 is made of silicone material, and the setting of the silicone material can increase the The friction between the gauze and the gauze effectively prevents the displacement of the gauze caused by the external force when the pressing block 6 is pressed, causing discomfort to the patient. A pair of guide holes 12 are provided on the side wall of the support 3. 12 is fixed with a limit rod 14 at the corresponding position, and the outer end of the limit rod 14 extends to penetrate the guide hole 12, and the moving block 11 can be limited by the limit rod 14 penetrating through the guide hole 12. When the screw rod 4 is screwed, Do not affect the moving block 11 and prevent the moving block 11 from rotating with the screw 4. When adjusting the pressing assembly, the nursing staff inserts fingers into the through hole 13 and contacts with the roller 10, then turns the roller 10, and the roller 10 drives the two-way screw rod 9 rotates, the direction of the thread at two ends of the two-way screw rod 9 is opposite, so the rotation of the two-way screw rod 9 drives the fixed block 7 to protrude outward along the two-way screw rod 9, and the pair of pressure plates 5 move relatively, and the rotation direction of the roller 10 can be controlled. Adjust the distance between a pair of pressure plates 5. When the distance between the pressure plates 5 and the position of the puncture point is small, the support seat 3 can be placed between the two puncture points. At this time, fingers can be inserted into the accommodation chamber to adjust the roller 10. After the pressing block 6 moves above the point to be pressed, screw the screw 4 so that the screw 4 drives the moving block 11 to move downward, and the moving block 11 passes through the guide hole 12 through the limit rod 14 to limit the position, so that the moving block 11 drives a The pressing plate 5 is pressed down, and the puncture point is pressed to stop bleeding, so that two puncture points can be pressed simultaneously.

The technical solution provided by the utility model needs to adjust the pressing assembly according to the position of the puncture point before wearing it. The nurse inserts the finger into the through hole and contacts with the roller, turns the roller, and the roller drives the two-way screw to rotate. The direction of thread at both ends of the screw is opposite, so when it rotates, it drives a pair of pressure plates to move relative to each other, and the distance between a pair of pressure plates can be adjusted by controlling the rotation direction of the roller. When the distance between the pressure plates and the position of the puncture point is small, the support seat can be placed Between the two puncture points, at this time, put your fingers into the holding chamber to adjust the roller until the pressing block moves above the point to be pressed, the nurse wears the base on the patient's arm through the Velcro strap, and twists the screw , so that the screw drives the moving block to move downward, the moving block penetrates the guide hole through the limit rod to limit the position, the moving block pushes down and drives a pair of pressing plates to press down, and the puncture point is compressed to stop bleeding, so that two puncture points can be pressed simultaneously Purpose.

The utility model covers any replacement, modification, equivalent method and scheme made on the spirit and scope of the utility model. In order to make the public have a thorough understanding of the utility model, specific details are described in the following preferred embodiments of the utility model, and those skilled in the art can fully understand the utility model without the description of these details. In addition, in order to avoid unnecessary confusion on the essence of the present invention, well-known methods, procedures, processes, components and circuits are not described in detail.

Those of ordinary skill in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as: ROM/RAM, magnetic disk, etc. Discs, discs, etc.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present utility model.

Claims (7)

1. A hemostatic device for arteriovenous fistula, comprising a base, the base is provided with a Velcro strap, it is characterized in that the top of the base is threadedly connected with a screw rod, and the bottom of the base is fixedly connected with a support seat, The support seat and the base form an accommodation cavity, and also include a pressing assembly for pressing the puncture point, and the pressing assembly is connected to the bottom of the screw rod; The pressing assembly includes a moving block rotatably connected to the bottom end of the screw, a bidirectional screw rod is rotatably connected to the inner cavity of the moving block, and a roller is fixedly sleeved at the central position of the bidirectional screw rod. The left and right ends of the screw rod extend to the outside of the moving block, and are slidably connected with a fixed block. A first cavity is opened in the fixed block, and guide rods are fixedly connected to the side walls of the left and right ends of the moving block. The outer end of the guide rod extends into the first cavity, the bottom of the fixed block is fixedly connected with a pressing plate, the bottom wall of the pressing plate is provided with an installation groove, and a pressing block is fixedly connected in the installation groove, A pair of guide holes are opened on the side wall of the support seat, and a limit rod is fixed at a position corresponding to the side wall of the moving block and the guide hole, and the outer end of the limit rod extends to pass through the guide hole. hole. 2. The hemostasis device for arteriovenous fistula according to claim 1, wherein a second cavity is opened on the bottom inner wall of the first cavity, and the outer end of the two-way screw rod extends to the second cavity. In the second cavity, an insertion hole is opened on the side wall of the second cavity, and the outer end of the two-way screw rod is slidably connected with the insertion hole through threads. 3 . The hemostatic device for arteriovenous fistula according to claim 1 , wherein a through hole is opened on the bottom wall of the support seat. 4 . 4. The hemostatic device for arteriovenous fistula according to claim 1, characterized in that, the bottom of the support seat is arranged in a circular arc shape, and both ends of the bottom of the support seat and the connection with the base are made of Arrangement of round corners. 5 . The hemostatic device for arteriovenous fistula according to claim 1 , wherein the outer end of the pressure plate is arranged in an arc shape. 6. The hemostasis device for arteriovenous fistula according to claim 1, wherein the pressing block is made of silica gel. 7. The hemostasis device for arteriovenous fistula according to claim 1, characterized in that, the hexagonal joint at the top of the screw is arranged with rounded corners.