Femoral artery puncture sheath fixing device

Abstract

The utility model discloses a femoral artery puncture sheath fixing device, which relates to the technical field of medical puncture equipment and comprises a positioning seat capable of being arranged on the skin of a patient, a puncture sheath can penetrate through the positioning seat, and two ends of the positioning seat are connected with connecting plates through elastic bands. Clamping strips capable of clamping thighs of a patient are arranged at the ends, away from the elastic band, of the connecting plates, two positioning blocks capable of moving in an opening and closing mode are arranged on the positioning seat, flanging lugs are arranged at the two ends of each positioning block, and sliding sleeves are embedded in the flanging lugs. In the actual use process of the whole femoral artery puncture sheath fixing device, the positioning seat can be arranged on the skin of the thigh root of a patient, the elastic band, the connecting plate and the clamping strip can be positioned and bound to the thigh root of the patient, and the stability of the positioning seat is kept. And a space capable of accommodating the puncture sheath is reserved. The positioning block arranged on the positioning seat can clamp the puncture sheath in a closed state, and the stability of the puncture sheath and the puncture needle in the puncture process is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of medical puncture devices, and particularly relates to a femoral artery puncture sheath fixing device. Background Art

[0002] Femoral artery puncture is mainly used for regional chemotherapy, or for collecting arterial blood samples in some special examinations, and for pressurized blood transfusion and infusion during first aid. After blood sampling, the needle should be quickly withdrawn, and the local area should be pressed with a disinfected gauze or cotton ball for more than 5 minutes, and the principle of aseptic technique operation should be strictly implemented during the operation. The puncture site of femoral artery puncture is the inner side below the inguinal ligament.

[0003] During the process of performing a puncture operation on the femoral artery, the needle tip of the puncture needle penetrates through the skin and muscle tissues and enters the femoral artery. During the puncture process, the doctor will continuously adjust the angle and depth of the needle to ensure accurate entry into the femoral artery. Once the needle enters the femoral artery, the doctor will use ultrasound or other imaging techniques to confirm whether the position of the needle is correct. If the position is incorrect, the doctor may need to readjust the position of the needle. Once the correct position of the needle is confirmed, the doctor will insert the catheter along the needle into the femoral artery. The catheter is usually made of a soft material and can easily pass through the blood vessel wall. When the catheter is inserted into the correct position, further operations can be performed. For example, during a cardiac catheterization, the doctor can deliver drugs or oxygen to the heart through the catheter; during a coronary angiography, the doctor can inject a contrast agent through the catheter to observe the condition of the blood vessels.

[0004] Therefore, during this process, in order to avoid deviations in medical operations, it is necessary to maintain the stability of the puncture sheath. However, in the actual use process of the existing puncture sheaths, most of them require manual maintenance of their stability, and deviations are likely to occur during the manual operation process, resulting in the phenomenon of shaking of the puncture sheath, which in turn is likely to affect the normal implementation of subsequent medical operations. Summary of the Utility Model

[0005] In view of the above problems, the present application provides a femoral artery puncture sheath fixing device.

[0006] To achieve the above object, the present application provides the following technical solution: A femoral artery puncture sheath fixing device includes a positioning seat that can be disposed on the patient's skin, and the puncture sheath can pass through the positioning seat. Both ends of the positioning seat are connected with connection plates through elastic bands, and clamping strips that can clamp the patient's thigh position are provided at the ends of the connection plates away from the elastic bands.

[0007] There are two positioning blocks on the positioning seat that can move in an opening and closing manner. Flanging ears are provided at both ends of the positioning blocks, and sliding sleeves are embedded on the flanging ears. The sliding sleeves at the same end of the two positioning blocks are penetrated by the same guiding rod. The sliding sleeves, flanging ears, and positioning blocks can move along the direction of the guiding rod to adjust the opening and closing states of the two positioning blocks.

[0008] A pair of intercepting blocks with adjustable positions are provided on the guiding rod. When the two positioning blocks are in a closed state, the intercepting blocks abut against the surface of the sliding sleeve.

[0009] Furthermore, a pair of follower rods I are provided on both sides of the intercepting block, above and below the guiding rod. The follower rod I is connected by an elastic structure to a follower rod II that can rotate synchronously with it. When the intercepting block abuts against the surface of the sliding sleeve, the follower rod I and the follower rod II are parallel to the guiding rod.

[0010] Furthermore, the elastic structure includes a docking convex block connected to the follower rod II. The docking convex block is connected by a compression spring to a docking ring, and the docking ring is provided at the end of the follower rod I.

[0011] Furthermore, both ends of the guiding rod are provided on the positioning seat through support blocks. The ends of the follower rod II far from the follower rod I are rotatably connected to the support blocks. When the follower rod II rotates, the follower rod I and the intercepting block rotate synchronously.

[0012] Furthermore, a plurality of anti-slip arc strips arranged in parallel are provided on the surface of the guiding rod. When the intercepting block abuts against the sliding sleeve, the anti-slip arc strips are opposite to the position of the follower rod I. A plurality of limiting rings arranged in parallel are provided on the follower rod I. When the follower rod I and the follower rod II rotate to be parallel to the guiding rod, the limiting rings all slide into the gaps of the anti-slip arc strips.

[0013] Furthermore, sealing gaskets that can move synchronously with the positioning blocks are provided on the inner sides of the positioning blocks. When the two positioning blocks abut against each other, the ends of the two sealing gaskets abut against each other to form a channel that can accommodate a puncture sheath to pass through.

[0014] In summary, the technical effects and advantages of the present utility model:

[0015] During the actual use of the entire femoral artery puncture sheath fixing device of the present utility model, the positioning seat can be provided on the skin at the root of the patient's thigh. The elastic band, connecting plate, and clamping strip can be positioned and bound to the root of the patient's thigh to maintain the stability of the positioning seat. There is a space that can accommodate the puncture sheath. The positioning blocks provided on the positioning seat can clamp the puncture sheath in a closed state to maintain the stability of the puncture sheath and the puncture needle during the puncture process. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model.

[0018] Figure 2 Schematic diagram of the structure of the second perspective of the present utility model.

[0019] Figure 3 Schematic diagram of the partial structure of the present utility model.

[0020] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of part A.

[0021] In the figure: 1, positioning seat; 11, elastic band; 12, connecting plate; 13, clamping strip; 2, positioning block; 21, flanging ear; 22, sliding sleeve; 23, sealing gasket; 3, guide rod; 31, supporting block; 32, anti-slip arc strip; 4, intercepting block; 5, follower rod 1; 51, limiting ring; 6, follower rod 2; 7, docking convex block; 8, compression spring; 9, docking ring. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment 1:

[0024] Referring to Figures 1-4 A femoral artery puncture sheath fixing device as shown, which includes a positioning seat 1 that can be arranged on the patient's skin. The puncture sheath can pass through the positioning seat 1. Both ends of the positioning seat 1 are connected with connecting plates 12 through elastic bands 11, and clamping strips 13 that can clamp the patient's thigh position are arranged at the ends of the connecting plates 12 away from the elastic bands 11.

[0025] During the actual use of the entire femoral artery puncture sheath fixing device, the positioning seat 1 can be set on the skin at the root of the patient's thigh. The elastic band 11, the connecting plate 12 and the clamping strip 13 can be positioned and bound to the root of the patient's thigh to maintain the stability of the positioning seat 11. The positioning seat 1 is directly opposite to the puncture position at the root of the patient's thigh, leaving a space for accommodating the puncture sheath.

[0026] There are two positioning blocks 2 on the positioning seat 1 that can move in an opening and closing manner. When the positioning blocks 2 are closed, the puncture sheath can be clamped to maintain the stability of the puncture sheath and the puncture needle during the puncture process. Flanging ears 21 are provided at both ends of the positioning block 2, and sliding sleeves 22 are embedded on the flanging ears 21. The sliding sleeves 22 located at the same end of the two positioning blocks 2 are all penetrated by the same guiding rod 3. The sliding sleeves 22, the flanging ears 21 and the positioning blocks 2 can move along the direction of the guiding rod 3 to adjust the opening and closing states of the two positioning blocks 2, leaving a space for the puncture sheath to quickly pass through.

[0027] A pair of intercepting blocks 4 with adjustable positions are provided on the guiding rod 3. When the two positioning blocks 2 are in a closed state, the intercepting blocks 4 abut against the surface of the sliding sleeve 22 to maintain the tightness of the connection between the two positioning blocks 2, further maintaining the stability of the puncture sheath and effectively avoiding the phenomena of shaking and offset of the puncture sheath.

[0028] Embodiment 2:

[0029] A pair of follower rods 5 located above and below the guiding rod 3 are provided on one side of each intercepting block 4. The follower rods 5 are connected by an elastic structure to a follower rod 6 that can rotate synchronously with them. When the intercepting blocks 4 abut against the surface of the sliding sleeve 22, the follower rods 5 and the follower rod 6 are parallel to the guiding rod 3. The elastic structure urges the follower rod 5 to press against the intercepting block 4, and the intercepting block 4 presses against the surface of the sliding sleeve 22 to prevent the positioning blocks 2 from separating.

[0030] The elastic structure includes a docking convex block 7 connected to the follower rod 6. The docking convex block 7 is connected by a compression spring 8 to a docking ring 9. The docking ring 9 is provided at the end of the follower rod 5. The compression spring 8 provides a pressing force for the follower rod 5. At the same time, the distance between the follower rod 5 and the follower rod 6 is adjustable.

[0031] If it is necessary to rotate the interception block 4, the follower rod 1 5 and the follower rod 2 6, the follower rod 1 5 can be pulled to reduce the distance between the follower rod 1 5 and the follower rod 2 6, leaving space for the interception block 4 to rotate and disengage from the sliding sleeve 11. Since both ends of the guide rod 3 are arranged on the positioning seat 1 through the support block 31, the end of the follower rod 2 6 away from the follower rod 1 5 is rotatably connected to the support block 31. When the follower rod 2 6 rotates, the follower rod 1 5 and the interception block 4 rotate synchronously. The interception block 4 can rotate smoothly and disengage from the sliding sleeve 22. The two positioning blocks 2 can be opened smoothly to facilitate the removal and placement of the puncture sheath, reducing the time required in the process of adjusting the position of the positioning block 2, and having the advantage of portable operation.

[0032] Embodiment 3:

[0033] like Figures 1-4 As shown, when the positioning block 2 is in a closed state, in order to further maintain the tightness of the connection between the intercepting block 4 and the sliding sleeve 22 and avoid the deviation of the intercepting block 4, a plurality of parallel anti-skid arc strips 32 are provided on the surface of the guide rod 3. When the intercepting block 4 and the sliding sleeve 22 are in contact with each other, the anti-skid arc strips 32 are directly opposite to the position of the follower rod 1 5. The follower rod 1 5 is provided with a plurality of parallel limiting rings 51. When the follower rod 1 5 and the follower rod 2 6 are rotated to be parallel to the guide rod 3, the limiting rings 51 all slide into the gaps of the anti-skid arc strips 32.

[0034] Under the compression force of the elastic structure, the limiting ring 51 is in contact with the anti-skid arc strip 32 on one side thereof, so the follower rod 1 5 is not easy to rotate. Only by pulling the follower rod 1 5 to make it slide and a gap is generated between the limiting ring 51 and the anti-skid arc strip 32, can the follower rod 1 5 and the limiting ring 51 rotate smoothly.

[0035] Therefore, when the positioning block 2 is in a closed state, under the premise of non-human control, the intercepting block 4 is not easy to slide away from the sliding sleeve 22, which effectively improves the tightness of the connection between the two positioning blocks 2.

[0036] In order to improve the tightness of the connection between the positioning block 2 and the puncture sheath, a sealing pad 23 that can move synchronously with the positioning block 2 is provided on the inner side of the positioning block 2. When the two positioning blocks 2 are abutted, the ends of the two sealing pads 23 abut against each other to form a channel that can accommodate the puncture sheath to pass through.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A femoral artery puncture sheath fixing device, characterized in that: It comprises a positioning seat (1) that can be arranged on the patient's skin, and a puncture sheath that can pass through the positioning seat (1). Both ends of the positioning seat (1) are connected to a connecting plate (12) through an elastic band (11), and one end of the connecting plate (12) away from the elastic band (11) is provided with a clamping strip (13) that can clamp the patient's thigh. The positioning seat (1) is provided with two positioning blocks (2) capable of opening and closing movements, both ends of the positioning blocks (2) are provided with flanged ears (21), a sliding sleeve (22) is embedded in the flanged ears (21), the sliding sleeve (22) located at the same end of the two positioning blocks (2) is penetrated by the same guide rod (3), the sliding sleeve (22), the flanged ears (21) and the positioning blocks (2) can move along the direction of the guide rod (3) to adjust the opening and closing states of the two positioning blocks (2); The guide rods (3) are each provided with a pair of interception blocks (4) whose positions can be adjusted. When the two positioning blocks (2) are in a closed state, the interception blocks (4) abut against the surface of the sliding sleeve (22).

2. The femoral artery puncture sheath fixing device according to claim 1, characterized in that: A pair of follower rods (5) are provided on one side of the intercepting block (4) and are located above and below the guide rod (3). The follower rod (5) is connected to a follower rod (6) that can rotate synchronously with the follower rod through an elastic structure. When the intercepting block (4) abuts against the surface of the sliding sleeve (22), the follower rod (5) and the follower rod (6) are parallel to the guide rod (3).

3. The femoral artery puncture sheath fixing device according to claim 2, characterized in that: The elastic structure comprises a docking protrusion (7) connected to the second follower rod (6); the docking protrusion (7) is connected to a docking ring (9) via a pressure spring (8); and the docking ring (9) is arranged at the end of the first follower rod (5).

4. The femoral artery puncture sheath fixing device according to claim 2, characterized in that: Both ends of the guide rod (3) are arranged on the positioning seat (1) through a supporting block (31), and one end of the follower rod (6) away from the follower rod (5) is rotatably connected to the supporting block (31). When the follower rod (6) rotates, the follower rod (5) and the intercepting block (4) rotate synchronously.

5. The femoral artery puncture sheath fixing device according to claim 1, characterized in that: The surface of the guide rod (3) is provided with a plurality of anti-skid arc strips (32) arranged in parallel. When the intercepting block (4) abuts against the sliding sleeve (22), the anti-skid arc strip (32) is directly opposite to the position of the follower rod 1 (5). The follower rod 1 (5) is provided with a plurality of limit rings (51) arranged in parallel. When the follower rod 1 (5) and the follower rod 2 (6) rotate to be parallel to the guide rod (3), the limit rings (51) slide into the gaps of the anti-skid arc strips (32).

6. The femoral artery puncture sheath fixing device according to claim 1, characterized in that: The inner sides of the positioning blocks (2) are each provided with a sealing pad (23) that can move synchronously therewith. When the two positioning blocks (2) are in contact with each other, the ends of the two sealing pads (23) are in contact with each other, forming a channel that can accommodate the puncture sheath to pass through.

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