Blood vessel positioning device for interventional department

Abstract

The utility model discloses a blood vessel positioning device for the interventional department, and belongs to the field of medical equipment. Comprising a positioning disc, the center of the positioning disc is provided with a through hole, and two sides of the positioning disc are fixedly provided with bandages; the guide cylinder is arranged on the positioning disc and used for guiding the puncture needle; the adjusting assembly is arranged between the guide cylinder and the positioning disc and used for adjusting the puncture angle and the puncture distance; the adjusting assembly comprises a limiting sleeve rotationally arranged in the center of the positioning disc, sector plates fixedly connected to the two sides of the upper end of the limiting sleeve and a limiting ring arranged between the two sector plates, and the guide cylinder penetrates through the limiting ring and is fixedly connected with the limiting ring. The blood vessel positioning device for the interventional department has the beneficial effect that the puncture depth can be conveniently controlled.

Description

Technical Field

[0001] The present application relates to the field of medical equipment, and in particular, to a blood vessel positioning device for interventional medicine. Background Art

[0002] Puncture is often used in neurological treatment. Puncture is to insert a puncture needle into the body cavity to extract secretions for testing, inject gas or contrast agent into the body cavity for angiography, or inject drugs into the body cavity. The purpose is to draw blood for testing, blood transfusion, infusion and catheter insertion for angiography. It is necessary to puncture to a predetermined position in the body. Most existing puncture positioning devices can only locate the puncture angle, but the puncture depth can only be controlled by the medical staff themselves, which has high requirements for medical staff.

[0003] The structure of the product can refer to a puncture auxiliary positioning device disclosed in Chinese patent document publication number: CN219306867U, which includes a fixing plate, a fixing belt on the side of the fixing plate close to the human body, the fixing belt is fixed to the outer surface of the fixing plate, a medical adhesive strip is arranged on the inner side of the fixing belt, the medical adhesive strip is glued to the outer surface of the fixing belt, the outer side of the fixing plate is provided with a mounting frame, the mounting frame is movably arranged on the inner side of the fixing plate, there is a buckle between the mounting frame and the fixing plate, the buckle is fixed to the outer surface of the fixing plate and is clamped with the mounting frame, the inner side of the mounting frame is provided with an angle frame, the outer side of the angle frame is provided with an adjustment head, the adjustment head is fixed to both ends of the angle frame and is clamped with the mounting frame.

[0004] In the above structure, only the puncture angle can be adjusted, resulting in the problem that the puncture depth cannot be controlled.

[0005] Therefore, there is a need for an interventional blood vessel positioning device that can conveniently control the puncture depth. Utility Model Content

[0006] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a blood vessel positioning device for interventional medicine, including: a positioning plate, a through hole is arranged at the center of the positioning plate, and straps are fixedly arranged on both sides; a guide cylinder is arranged on the positioning plate and used to guide the puncture needle; an adjustment assembly is arranged between the guide cylinder and the positioning plate and used to adjust the puncture angle and puncture distance; the adjustment assembly includes: a limiting sleeve rotatably arranged at the center of the positioning plate, a fan-shaped plate fixedly connected on both sides of the upper end of the limiting sleeve, and a limiting ring arranged between the two fan-shaped plates, the guide cylinder passes through the limiting ring and is fixedly connected to the limiting ring; a limiting cylinder is slidably connected inside the guide cylinder, and an externally threaded cylinder is threadedly connected inside the limiting cylinder.

[0008] Furthermore, a limiting groove is provided on the limiting sleeve, a limiting block is slidably connected in the limiting groove, a spring is arranged in the limiting groove, the spring abuts against the limiting groove wall and a flange is arranged at the center position of the positioning plate on the limiting block, and a plurality of embedding grooves are circumferentially arranged on the flange for the limiting block to be embedded.

[0009] Furthermore, a button with one end extending into the limiting groove is provided on the limiting sleeve, and an inclined surface abutting against the button is provided on one side of the limiting block, so that the limiting block slides when the button abuts against the inclined surface.

[0010] Furthermore, an arc-shaped groove is provided on the fan-shaped plate and is arranged concentrically with the fan-shaped plate, and protrusions are fixedly connected to both sides of the limit ring, and one end of the protrusion is embedded in the arc-shaped groove.

[0011] Furthermore, a threaded hole is provided on the protruding portion, a limit screw is threadedly connected to the threaded hole, and the limit screw passes through the arc groove.

[0012] Furthermore, a guide groove extending along the axial direction of the guide cylinder is provided on the inner side of the guide cylinder, and two sliding protrusions are fixedly connected to the outer side wall of the limiting cylinder, and the sliding protrusions are slidably arranged in the guide groove.

[0013] Furthermore, a limiting bolt is threadedly connected to the limiting cylinder, and the limiting bolt is inserted into the inner side of the limiting cylinder.

[0014] Furthermore, the sector plate is provided with an angle mark extending from the outer edge of the arc groove, and the external threaded cylinder is provided with a length dimension mark extending along the axial direction.

[0015] Furthermore, a fixing assembly is arranged on the externally threaded barrel, and the fixing assembly comprises: a positioning ring fixedly arranged on the upper end of the externally threaded barrel, and four sets of positioning screws distributed circumferentially are threadedly connected to the positioning ring.

[0016] The beneficial effect of the present application is that it provides an interventional blood vessel positioning device that is convenient for controlling the puncture depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0019] In the attached picture:

[0020] Figure 1is an overall schematic diagram according to an embodiment of the present application;

[0021] Figure 2 yes Figure 1 A schematic diagram of the installation of the limiting cylinder in the embodiment;

[0022] Figure 3 yes Figure 1 A cross-sectional view of an embodiment;

[0023] Figure 4 yes Figure 1 Structural diagram of the flange in the embodiment.

[0024] Reference numerals:

[0025] 100. Positioning plate; 101. Guide cylinder; 102. Limiting sleeve; 103. Fan-shaped plate; 104. Limiting ring; 105. Binding strap; 106. Arc groove; 107. Protrusion; 108. Threaded hole; 109. Limiting screw; 110. Limiting groove; 111. Limiting block; 112. Spring; 113. Flange; 114. Embedding groove; 115. Button; 116. Guide groove; 117. Limiting cylinder; 118. Sliding protrusion; 119. Externally threaded cylinder; 120. Limiting bolt; 121. Positioning ring; 122. Positioning screw. DETAILED DESCRIPTION

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0027] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] Reference Figure 1-4 The blood vessel positioning device for interventional department includes: a positioning disk 100, a guide tube 101, a limiting sleeve 102, a sector plate 103, and a limiting ring 104. A through hole is arranged at the center of the positioning disk 100, and straps 105 are fixedly arranged on both sides of the positioning disk 100. The positioning disk 100 is fixed on the human body by the straps 105, so that the through hole of the positioning disk 100 is located at the puncture site. The limiting sleeve 102 is rotatably arranged at the center of the positioning disk 100, and the sector plate 103 is fixedly connected to both sides of the upper end of the limiting sleeve 102. The sector plate 103 is provided with an arc groove 106 which is concentric with the sector plate 103. The two sides of the limit ring 104 are fixedly connected with protrusions 107. One end of the protrusion 107 is embedded in the arc groove 106. The protrusion 107 is provided with a threaded hole 108. The threaded hole 108 is threadedly connected with a limit screw 109. The limit screw 109 passes through the arc groove 106, so that the limit ring 104 can slide along the arc groove 106. The end of the limit screw 109 abuts against the sector plate 103 to position the limit ring 104. The guide tube 101 passes through the limit ring 104 and is fixedly connected to the limit ring 104, so that the guide tube 101 can slide along the arc groove 106, thereby adjusting the puncture angle.

[0032] The limiting sleeve 102 is provided with a limiting groove 110, and a limiting block 111 is slidably connected in the limiting groove 110. A spring 112 is arranged in the limiting groove 110, and the spring 112 abuts against the limiting groove 110 wall and the limiting block 111 respectively. A flange 113 is arranged at the center of the positioning plate 100, and a plurality of groups of embedding grooves 114 are arranged circumferentially on the flange 113 for the limiting block 111 to be embedded. A button 115 is arranged on the limiting sleeve 102, one end of which extends into the limiting groove 110, and an inclined surface abutting against the button 115 is arranged on one side of the limiting block 111. When the button 115 abuts against the inclined surface, the limiting block 111 slides, and the limiting block 111 is no longer embedded in the embedding groove 114, so that the limiting sleeve 102 can rotate relative to the positioning plate 100.

[0033] A guide groove 116 extending along the axial direction of the guide cylinder 101 is provided inside the guide cylinder 101, and a limiting cylinder 117 is slidably connected inside the guide cylinder 101. Two sliding protrusions 118 are fixedly connected to the outer wall of the limiting cylinder 117, and the sliding protrusions 118 are slidably arranged in the guide groove 116. An externally threaded cylinder 119 is internally threadedly connected to the limiting cylinder 117, and a limiting bolt 120 is threadedly connected to the limiting cylinder 117. The limiting bolt 120 is inserted into the inner side of the limiting cylinder 117. The externally threaded cylinder 119 is limited by the limiting bolt 120.

[0034] The sector plate 103 is provided with angle markings extending from the outer edge of the arc groove 106, and the external threaded tube 119 is provided with length dimension markings extending along the axial direction, so as to facilitate the adjustment of the puncture angle and the puncture depth.

[0035] A fixing assembly is arranged on the external threaded barrel 119 , and the fixing assembly includes: a positioning ring 121 fixedly arranged on the upper end of the external threaded barrel 119 , and four sets of positioning screws 122 distributed circumferentially are threadedly connected to the positioning ring 121 .

[0036] Installation or use method: Place the puncture needle in the external threaded barrel 119, position the puncture needle through four sets of positioning screws 122, and adjust the distance of the external threaded barrel 119 extending from the limiting barrel 117 by rotating the external threaded barrel 119. Thus, the puncture depth can be adjusted. When the button is pressed, the limiting sleeve 102 can rotate relative to the positioning plate 100 to adjust the puncture direction. The limiting ring 104 slides in the arc groove 106 to adjust the puncture angle of the puncture needle, and the limiting screw 109 is positioned by the end thereof abutting against the sector plate 103 to position the limiting ring 104.

[0037] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A blood vessel positioning device for interventional medicine, characterized in that: include: A positioning plate, wherein a through hole is provided at the center of the positioning plate and straps are fixedly provided on both sides; A guide cylinder, arranged on the positioning plate, for guiding the puncture needle; An adjustment component is arranged between the guide tube and the positioning plate, and is used to adjust the puncture angle and the puncture distance; The adjustment assembly comprises: a limiting sleeve rotatably arranged at the center of the positioning plate, sector plates fixedly connected to both sides of the upper end of the limiting sleeve, and a limiting ring arranged between the two sector plates, wherein the guide tube passes through the limiting ring and is fixedly connected to the limiting ring; The guide cylinder is slidably connected with a limiting cylinder, and the limiting cylinder is internally threadedly connected with an externally threaded cylinder.

2. The blood vessel positioning device for interventional medicine according to claim 1, characterized in that: The limiting sleeve is provided with a limiting groove, in which a limiting block is slidably connected, a spring is arranged in the limiting groove, and the spring abuts against the limiting groove wall and the limiting block respectively. A flange is arranged at the center position of the positioning plate, and a plurality of embedding grooves for the limiting block to be embedded are arranged circumferentially on the flange.

3. The blood vessel positioning device for interventional medicine according to claim 2, characterized in that: The limiting sleeve is provided with a button with one end extending into the limiting groove, and one side of the limiting block is provided with an inclined surface abutting against the button, and the limiting block slides when the button abuts against the inclined surface.

4. The blood vessel positioning device for interventional medicine according to claim 3, characterized in that: The fan-shaped plate is provided with an arc-shaped groove which is arranged concentrically with the fan-shaped plate. Both sides of the limit ring are fixedly connected with protrusions, and one end of the protrusion is embedded in the arc-shaped groove.

5. The blood vessel positioning device for interventional medicine according to claim 4, characterized in that: A threaded hole is provided on the protruding portion, a limit screw is threadedly connected to the threaded hole, and the limit screw passes through the arc groove.

6. The blood vessel positioning device for interventional medicine according to claim 5, characterized in that: A guide groove extending along the axial direction of the guide cylinder is provided on the inner side of the guide cylinder. Two sliding protrusions are fixedly connected to the outer side wall of the limiting cylinder. The sliding protrusions are slidably arranged in the guide groove.

7. The blood vessel positioning device for interventional medicine according to claim 6, characterized in that: The limiting cylinder is threadedly connected with a limiting bolt, and the limiting bolt is inserted into the inner side of the limiting cylinder.

8. The blood vessel positioning device for interventional medicine according to claim 7, characterized in that: The sector plate is provided with an angle mark extending from the outer edge of the arc groove, and the external threaded cylinder is provided with a length dimension mark extending along the axial direction.

9. The blood vessel positioning device for interventional medicine according to claim 8, characterized in that: The externally threaded barrel is provided with a fixing assembly, which comprises: a positioning ring fixedly arranged at the upper end of the externally threaded barrel, and four sets of positioning screws distributed circumferentially are threadedly connected to the positioning ring.

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