Marrow cavity infusion puncture positioning device

Abstract

The utility model discloses a marrow cavity infusion puncture positioning device which comprises an installation mechanism, a puncture positioning mechanism, a puncture positioning mechanism and a puncture positioning mechanism. The adjusting mechanism comprises a sliding groove and a sliding block, the sliding groove is formed in the mounting plate, the sliding block is slidably mounted in the sliding groove, and a guide pipe is arranged on the sliding block; the limiting mechanism comprises a first limiting assembly and a second limiting assembly, the first limiting assembly is used for clamping and fixing the puncture needle, and the second limiting assembly is used for fixing the position of the sliding block. According to the utility model, the puncture needle can be clamped and fixed synchronously, and the position of the sliding block can be fixed synchronously, so that the puncture stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to a bone marrow cavity infusion puncture positioning device. Background Art

[0002] Bone marrow puncture and infusion is an effective infusion method in emergency situations. It is often used in situations where it is difficult or time-consuming to establish an intravenous infusion route. It can quickly establish an infusion route and give timely emergency medication. Before infusion, the patient lies flat, with the lower leg turned outward and the medial side of the tibia exposed. The puncture point is located at the plane of two horizontal fingers below the tibial tubercle. After selecting a puncture needle of appropriate length, insert the needle pin and connect the puncture needle to an electric drill to insert the puncture needle into the bone marrow cavity.

[0003] When the operator performs the puncture operation, he needs to hold the electric drill to press the puncture needle against the puncture position. In the process of using the electric drill to puncture the puncture needle into the bone marrow cavity, the puncture needle is prone to tilt or shift, resulting in puncture failure. In severe cases, the puncture needle may break, posing a safety hazard.

[0004] Among many existing technologies, Chinese patent CN215349307U discloses a bone marrow cavity puncture and infusion positioning device, which is fixed at the puncture position by a suction cup to achieve the fixation of the device.

[0005] However, the skin surface on the inner side of the human tibia is uneven, and the above-mentioned fixation method using a suction cup is not secure and is easy to fall off, resulting in poor puncture stability.

[0006] Based on this, the utility model designs a bone marrow cavity infusion puncture positioning device to solve the above problems. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the prior art, the utility model provides a bone marrow cavity infusion puncture positioning device.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A bone marrow cavity infusion puncture positioning device, comprising:

[0010] The mounting mechanism comprises a mounting plate and a binding belt, wherein the binding belt is located on the bottom side of the mounting plate and two ends of the binding belt are respectively connected to two ends of the mounting plate;

[0011] An adjusting mechanism, comprising a slide groove and a slider, wherein the slide groove is provided on the mounting plate, the slider is slidably mounted in the slide groove, and a guide tube is provided on the slider; and

[0012] The limiting mechanism comprises a first limiting assembly and a second limiting assembly, wherein the first limiting assembly is used for clamping and fixing the puncture needle, and the second limiting assembly is used for fixing the position of the slider.

[0013] Furthermore, contact blocks are respectively arranged on the bottom side of the mounting plate at positions close to both ends of the binding strap.

[0014] Furthermore, it also includes an air cushion, which is adhered to the bottom side of the strap through Velcro.

[0015] Furthermore, the first limiting component includes a connecting block and a guide groove, the two guide grooves are symmetrically arranged on both sides of the opening at the top end of the guide tube, a connecting block is slidably installed in each guide groove, a first spring is connected between the connecting block and the guide groove to provide an elastic force to move the two connecting blocks away from each other, an arc-shaped clamping block is provided at one end of the two connecting blocks close to each other and an abutment surface is provided at the other end, a rotating sleeve is screwed on the outer thread of the top of the guide tube, a convex ring is provided on the top of the inner ring of the rotating sleeve, and the inner diameter of the convex ring is smaller than the distance between the two abutment surfaces.

[0016] Furthermore, the second limiting assembly includes a sliding rod and a pressure ring. The multiple sliding rods are parallel to the axis of the guide tube and slide through the slider. A second spring is connected between the top end of each sliding rod and the slider to provide elastic force so that the top end of the sliding rod abuts against the bottom side of the rotating sleeve. The pressure ring is located on the bottom side of the slider and is connected to the bottom end of each sliding rod.

[0017] The utility model has the following technical effects:

[0018] When the utility model is used, the position of the slider on the slide groove is adjusted so that the guide tube on the slider is aligned with the position where puncture is required, the rotating sleeve is adjusted, the rotating sleeve drives the slide bar to be pressed down, the slide bar drives the pressure ring to be pressed down and compresses the second spring, the pressure ring contacts the skin, and the pressure ring fixes the position of the slider through friction; the puncture needle is inserted along the guide tube, and when the puncture needle is inserted, the rotating sleeve is continuously adjusted, the convex ring on the rotating sleeve slides in contact with the abutment surface, and the abutment surface gradually moves along the lower end of the convex ring to its upper end. During the process, the abutment surface pushes the connecting block to slide in the guide groove, and the two connecting blocks drive the two arc-shaped clamping blocks to clamp and fix the puncture needle; thereby, the clamping and fixing of the puncture needle and the fixing of the position of the slider can be achieved simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A three-dimensional positioning device for bone marrow cavity infusion puncture of the utility model Figure 1 ;

[0021] Figure 2 It is a front view of a bone marrow cavity infusion puncture positioning device of the utility model;

[0022] Figure 3 For along Figure 2 AA direction cross-sectional view;

[0023] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0024] Figure 5 A three-dimensional positioning device for bone marrow cavity infusion puncture of the utility model Figure 2 .

[0025] The numbers in the figure represent:

[0026] 1. Installation mechanism 11. Installation plate 12. Binding strap 13. Contact block 2. Adjustment mechanism 21. Slide groove 22. Slider 23. Guide tube 24. Rotating sleeve 25. Convex ring 3. Limiting mechanism 31. First limiting assembly 311. Connecting block 312. Arc clamping block 313. Guide groove 314. First spring 315. Abutment surface 32. Second limiting assembly 321. Sliding rod 322. Second spring 323. Pressing ring 4. Air cushion. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model is further described below in conjunction with embodiments.

[0029] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0030] Please refer to the instruction manual Figure 1-5 A bone marrow cavity infusion puncture positioning device includes a mounting mechanism 1, an adjustment mechanism 2 and a limiting mechanism 3.

[0031] The mounting mechanism 1 includes a mounting plate 11 and a strap 12. The strap 12 is located on the bottom side of the mounting plate 11 and its two ends are respectively connected to the two ends of the mounting plate 11. Preferably, contact blocks 13 are respectively provided at the bottom side of the mounting plate 11 near the two ends of the strap 12. When in use, the legs pass through the strap 12, the mounting plate 11 is moved to the corresponding position, and the two contact blocks 13 contact the legs to prevent the mounting plate 11 from shaking.

[0032] Preferably, it also includes an air cushion 4, which is adhered to the bottom side of the strap 12 by Velcro, and the air cushion 4 is padded between the thigh and the calf to facilitate the puncture operation.

[0033] The adjusting mechanism 2 includes a slide groove 21 and a slider 22 . The slide groove 21 is provided on the mounting plate 11 . The slider 22 is slidably installed in the slide groove 21 . A guide tube 23 is provided on the slider 22 .

[0034] The limiting mechanism 3 includes a first limiting component 31 and a second limiting component 32 . The first limiting component 31 is used to clamp and fix the puncture needle, and the second limiting component 32 is used to fix the position of the slider 22 .

[0035] Specifically, the first limiting component 31 includes a connecting block 311 and a guide groove 313. The two guide grooves 313 are symmetrically arranged on both sides of the opening at the top end of the guide tube 23. A connecting block 311 is slidably installed in each guide groove 313. A first spring 314 is connected between the connecting block 311 and the guide groove 313 to provide an elastic force to move the two connecting blocks 311 away from each other. The two connecting blocks 311 are each provided with an arc-shaped clamping block 312 at one end close to each other and an abutting surface 315 at the other end. The top outer side of the guide tube 23 is screwed with a rotating sleeve 24, and the top of the inner ring of the rotating sleeve 24 is provided with a convex ring 25, and the inner diameter of the convex ring 25 is smaller than the spacing between the two abutting surfaces 315.

[0036] Furthermore, the second limiting assembly 32 includes a sliding rod 321 and a pressure ring 323. The multiple sliding rods 321 are parallel to the axis of the guide tube 23 and slide through the slider 22. A second spring 322 is connected between the top of each sliding rod 321 and the slider 22 to provide an elastic force so that the top of the sliding rod 321 abuts against the bottom side of the rotating sleeve 24. The pressure ring 323 is located on the bottom side of the slider 22 and is connected to the bottom end of each sliding rod 321.

[0037] When the lancet 31 is in the closed position, the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet 31 is in the closed position, and the lancet

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bone marrow cavity infusion puncture positioning device, characterized in that: include: A mounting mechanism (1), comprising a mounting plate (11) and a binding belt (12), wherein the binding belt (12) is located on the bottom side of the mounting plate (11) and two ends of the binding belt are respectively connected to two ends of the mounting plate (11); An adjusting mechanism (2), comprising a slide groove (21) and a slider (22), wherein the slide groove (21) is provided on the mounting plate (11), the slider (22) is slidably mounted in the slide groove (21), and a guide tube (23) is provided on the slider (22); and The limiting mechanism (3) comprises a first limiting component (31) and a second limiting component (32), wherein the first limiting component (31) is used to clamp and fix the puncture needle, and the second limiting component (32) is used to fix the position of the slider (22).

2. The bone marrow cavity infusion puncture positioning device according to claim 1, characterized in that: Contact blocks (13) are respectively arranged at positions on the bottom side of the mounting plate (11) close to the two ends of the binding belt (12).

3. The bone marrow cavity infusion puncture positioning device according to claim 1, characterized in that: It also comprises an air cushion (4), wherein the air cushion (4) is bonded to the bottom side of the binding belt (12) via Velcro.

4. The bone marrow cavity infusion puncture positioning device according to claim 1, characterized in that: The first limiting component (31) comprises a connecting block (311) and a guide groove (313). The two guide grooves (313) are symmetrically arranged on both sides of an opening at the top end of the guide tube (23). A connecting block (311) is slidably installed in each guide groove (313). A first spring (314) is connected between the connecting block (311) and the guide groove (313) to provide an elastic force to move the two connecting blocks (311) away from each other. An arc-shaped clamping block (312) is arranged at one end of the two connecting blocks (311) close to each other and an abutting surface (315) is arranged at the other end. A rotating sleeve (24) is screwed on the outer side of the top of the guide tube (23). A convex ring (25) is arranged on the top of the inner ring of the rotating sleeve (24). The inner diameter of the convex ring (25) is smaller than the distance between the two abutting surfaces (315).

5. The bone marrow cavity infusion puncture positioning device according to claim 4, characterized in that: The second limiting assembly (32) includes a sliding rod (321) and a pressure ring (323). The plurality of sliding rods (321) are parallel to the axis of the guide tube (23) and slide through the slider (22). A second spring (322) is connected between the top end of each sliding rod (321) and the slider (22) to provide an elastic force so that the top end of the sliding rod (321) abuts against the bottom side of the rotating sleeve (24). The pressure ring (323) is located on the bottom side of the slider (22) and is connected to the bottom end of each sliding rod (321).

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