PICC (Peripherally Inserted Central Catheter) auxiliary device

Abstract

The invention relates to the technical field of PICC catheterization assistance, and provides a PICC catheterization assisting device which comprises a base, the top of the base is fixedly connected with a first limiting plate, a limiting mechanism is fixedly installed at the top of the base and comprises a threaded rod fixedly installed at the top of the base, a bearing plate is installed on the outer wall of the threaded rod, and the bearing plate is fixedly connected with the first limiting plate. And the outer wall of the bearing plate is fixedly connected with a second limiting plate. The base is placed on a sickbed, then the forearm of a patient is placed on a first limiting plate, a bearing plate can be adjusted in a lifting mode along a threaded rod by rotating a threaded block, the bearing plate is driven to stably slide along a guide rod, and a catheter containing barrel fixedly connected to the top of a second limiting plate descends to the position above the arm; at the moment, one end of the catheter is inserted from one end of the catheter containing barrel, the catheter penetrates through the catheter containing barrel and is inserted into the catheter insertion sheath fixed to the arm of the patient, and auxiliary insertion of the catheter can be facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of PICC placement assistance, and in particular to a PICC placement assistance device. Background Art

[0002] PICC placement is a procedure that uses a catheter to puncture a vein in the peripheral arm, allowing the catheter to reach the large vein close to the heart, avoiding direct contact with the arm vein. The material used to make this type of catheter is relatively good, can withstand a certain degree of folding, and is not prone to severe bending or breaking, so it can be placed in the blood vessel for a long time. PICC placement generally selects superficial blood vessels in the upper limbs of the human body for puncture. First, the basilic vein is selected, and then a relatively thin catheter is passed through the basilic vein and sent into the axillary vein, then to the subclavian vein, superior vena cava, and finally to the right atrium of the human body. Before inserting the catheter into the blood vessels of the upper limbs, the hollow cannula sheath is generally inserted into the blood vessel and fixed. Then, the catheter is pinched by hand and inserted into the cannula sheath and slowly pushed into the blood vessel, finally reaching the right atrium of the human body.

[0003] To this end, the patent with authorization announcement number CN222056126U discloses a PICC catheter puncture auxiliary device, including a fixing plate, a fixing block is installed on the upper surface of the fixing plate, and a groove is opened diagonally on the upper surface of the fixing block. Through the provided movable plate, clamping block and insertion hole, one end of the catheter is inserted from the insertion hole on one side and inserted between the two clamping blocks, and then inserted from the insertion hole on the other side. After that, one end of the catheter is inserted into the patient's blood vessel, and the clamping block can clamp the catheter by pinching the two movable plates, and the movable plate can be pushed toward the direction of the blood vessel to drive the catheter deeper into the blood vessel, without the need to pinch the catheter by hand to push it. Compared with the existing technology, the catheter can be pushed deeper into the blood vessel by pinching the movable plate and pushing it toward the blood vessel. Compared with pinching the catheter with fingers to push it, it is much more convenient and is less likely to cause finger pain for medical staff. In addition, the clamping block has a better clamping effect on the catheter, and is less likely to cause the catheter to fall off.

[0004] The existing PICC catheterization auxiliary device, when in use, uses a single fixing block and Velcro to limit the patient's arm, and then the catheterization device is raised and lowered. The operation is cumbersome and it is inconvenient to adaptively adjust the catheterization device while limiting the patient's arm, thereby affecting the efficiency of the PICC catheterization operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a PICC catheter placement auxiliary device to solve the defect that the existing PICC catheter placement auxiliary device is inconvenient to limit the patient's arm while adaptively adjusting the catheter placement device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a PICC placement auxiliary device, comprising a base;

[0007] A first limiting plate is fixedly connected to the top of the base, and a limiting mechanism is fixedly installed on the top of the base;

[0008] The limiting mechanism includes a threaded rod fixedly mounted on the top of the base, a receiving plate mounted on the outer wall of the threaded rod, a second limiting plate fixedly connected to the outer wall of the receiving plate, and a threaded block movably connected inside the receiving plate;

[0009] The top of the second limiting plate is fixedly connected with a pipe placement tube.

[0010] Preferably, a through hole is provided inside the receiving plate, a guide rod is fixedly connected to the top of the base, a protective pad is fixedly connected to the inner wall of the second limiting plate, and a threaded groove is provided inside the threaded block.

[0011] Preferably, the receiving plate forms a sliding structure with the guide rod through a through hole, and the guide rod is vertically distributed to the base.

[0012] Preferably, the threaded block is threadedly connected to the threaded rod via a thread groove, and the thread groove is adapted to the threaded rod.

[0013] Preferably, the receiving plate is of slotted design, and the receiving plate and the threaded block form a rotating structure.

[0014] Preferably, the second limiting plate is arranged parallel to the first limiting plate, and the protective pad is arranged symmetrically with respect to the central axis of the second limiting plate.

[0015] Preferably, the inner wall of the first limit plate is fixedly connected with an adjustment mechanism, and the adjustment mechanism includes an airbag fixedly installed on the inner wall of the first limit plate, the outer wall of the airbag is fixedly connected with an air pipe, one end of the air pipe is fixedly connected with an air cylinder, a movable groove is provided inside the air cylinder, a piston is installed inside the air cylinder, and the top of the piston is fixedly connected to a movable rod.

[0016] Preferably, the air cylinder and the piston form a sliding structure, and the piston is located in the movable groove.

[0017] Preferably, the outer diameter of the piston is the same as the inner diameter of the cylinder, the piston is in contact with the inner wall of the movable groove, the movable rod and the cylinder form a sliding structure, and the top end of the movable rod is fixedly connected to the bottom of the receiving plate.

[0018] The PICC placement assist device provided by the present invention has the following advantages:

[0019] By means of the provided limiting mechanism and the tube placement tube, the base is placed on the hospital bed, and the patient's forearm is placed on the first limiting plate. By rotating the threaded block, the threaded block is threadedly connected to the threaded rod through the threaded groove, and the threaded block and the receiving plate form a rotating structure, so that the receiving plate can be raised and lowered along the threaded rod, driving the receiving plate to slide stably along the guide rod, so that the second limiting plate is attached to the upper part of the patient's forearm. Under the action of the protective pad, the arm can be protected, so that the tube placement tube fixedly connected to the top of the second limiting plate is subsequently lowered above the arm. At this time, one end of the catheter is inserted from one end of the tube placement tube, so that the catheter passes through the tube placement tube and is inserted into the intubation sheath fixed on the patient's arm, which can facilitate the auxiliary insertion of the catheter and play the effect of facilitating the limitation of the patient's arm.

[0020] Through the adjustment mechanism set up, the connecting plate is adjusted and lowered, so that the movable rod can be moved, driving the piston to slide along the movable groove, so that the gas in the cylinder is compressed and enters the airbag through the air pipe, so that the airbag is inflated, which can improve the comfort of the patient's arm. Since the airbag is elastic and a certain amount of air is preset inside the airbag, the position of the piston will not be higher due to the patient's thick arm, which will cause the airbag to be filled with air, further improving the stability of the limit on the patient's arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 A three-dimensional diagram of the first limiting plate of the present invention;

[0023] Figure 3 is a three-dimensional diagram of the threaded rod of the present invention;

[0024] Figure 4 This is a three-dimensional diagram of the second limiting plate of the present invention;

[0025] Figure 5 A three-dimensional diagram of a threaded block according to the present invention;

[0026] Figure 6 It is a three-dimensional cross-sectional view of the gas cylinder of the present invention.

[0027] Explanation of the reference numerals in the figure: 1. Base; 2. First limiting plate; 3. Limiting mechanism; 31. Threaded rod; 32. Second limiting plate; 33. Supporting plate; 34. Through hole; 35. Guide rod; 36. Protective pad; 37. Threaded block; 38. Threaded groove; 4. Tube placement tube; 5. Adjusting mechanism; 51. Air bag; 52. Air pipe; 53. Air cylinder; 54. Movable groove; 55. Piston; 56. Movable rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-6 The present invention provides a PICC placement auxiliary device, which includes a base 1.

[0030] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, it includes a base 1, the top of the base 1 is fixedly connected to a first limit plate 2, the top of the base 1 is fixedly installed with a limit mechanism 3, the limit mechanism 3 includes a threaded rod 31 fixedly installed on the top of the base 1, the outer wall of the threaded rod 31 is installed with a receiving plate 33, the outer wall of the receiving plate 33 is fixedly connected to a second limit plate 32, the inner part of the receiving plate 33 is movably connected with a threaded block 37, the top of the second limit plate 32 is fixedly connected to a pipe tube 4, the inner part of the receiving plate 33 is provided with a through hole 34, the top of the base 1 is fixedly connected to a guide rod 35, the second limit A protective pad 36 is fixedly connected to the inner wall of the positioning plate 32, and a threaded groove 38 is provided inside the threaded block 37. The connecting plate 33 forms a sliding structure with the guide rod 35 through the through hole 34. The guide rod 35 is vertically distributed to the base 1. The threaded block 37 is threadedly connected to the threaded rod 31 through the threaded groove 38. The threaded groove 38 is adapted to the threaded rod 31. The connecting plate 33 is a slotted design. The connecting plate 33 and the threaded block 37 form a rotating knot. The second limiting plate 32 is arranged parallel to the first limiting plate 2, and the protective pad 36 is symmetrically arranged with the central axis of the second limiting plate 32.

[0031] By placing the base 1 on the bed, and then placing the patient's forearm on the first limiting plate 2, by rotating the threaded block 37, since the threaded block 37 is threadedly connected to the threaded rod 31 through the threaded groove 38, and the threaded block 37 and the receiving plate 33 form a rotating structure, the receiving plate 33 can be raised and lowered along the threaded rod 31, driving the receiving plate 33 to slide steadily along the guide rod 35, so that the second limiting plate 32 is attached to the top of the patient's forearm. Under the action of the protective pad 36, the arm can be protected, so that the catheter tube 4 fixedly connected to the top of the second limiting plate 32 is then lowered above the arm. At this time, one end of the catheter is inserted from one end of the catheter tube 4, so that the catheter passes through the catheter tube 4 and is inserted into the intubation sheath fixed on the patient's arm, which can facilitate the auxiliary insertion of the catheter.

[0032] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 6 As shown, the inner wall of the first limit plate 2 is fixedly connected with an adjusting mechanism 5, and the adjusting mechanism 5 includes an air bag 51 fixedly installed on the inner wall of the first limit plate 2, and the outer wall of the air bag 51 is fixedly connected with an air supply pipe 52, and one end of the air supply pipe 52 is fixedly connected with an air cylinder 53, and a movable groove 54 is provided inside the air cylinder 53. A piston 55 is installed inside the air cylinder 53, and a movable rod 56 is fixedly connected to the top of the piston 55. The air cylinder 53 and the piston 55 form a sliding structure through the air cylinder 53. The piston 55 is located in the movable groove 54. The outer diameter of the piston 55 is the same as the inner diameter of the air cylinder 53. The piston 55 is in contact with the inner wall of the movable groove 54. The movable rod 56 and the air cylinder 53 form a sliding structure, and the top of the movable rod 56 is fixedly connected to the bottom of the receiving plate 33.

[0033] By adjusting the receiving plate 33 to descend, the movable rod 56 can be moved, driving the piston 55 to slide along the movable groove 54, so that the gas in the air cylinder 53 is compressed and enters the air bag 51 through the air supply pipe 52, so that the air bag 51 is propped up, which can make the patient's arm limit more stable and improve the comfort of the patient's arm. Since the air bag 51 is elastic and a certain amount of air is preset inside the air bag 51, the piston 55 is not positioned higher due to the patient's thick arm, which will cause the air bag 51 to be filled with air.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 scope of protection of the present invention.

Claims

1. A PICC catheter placement assisting device, comprising a base (1); Its characteristics are: A first limiting plate (2) is fixedly connected to the top of the base (1), and a limiting mechanism (3) is fixedly installed on the top of the base (1); The limiting mechanism (3) comprises a threaded rod (31) fixedly mounted on the top of the base (1); a receiving plate (33) is mounted on the outer wall of the threaded rod (31); a second limiting plate (32) is fixedly connected to the outer wall of the receiving plate (33); and a threaded block (37) is movably connected inside the receiving plate (33); The top of the second limiting plate (32) is fixedly connected to a pipe placement tube (4).

2. A PICC placement assist device according to claim 1, characterized in that: A through hole (34) is provided inside the receiving plate (33), a guide rod (35) is fixedly connected to the top of the base (1), a protective pad (36) is fixedly connected to the inner wall of the second limiting plate (32), and a threaded groove (38) is provided inside the threaded block (37).

3. The PICC placement assist device according to claim 2, characterized in that: The receiving plate (33) forms a sliding structure with the guide rod (35) through the through hole (34), and the guide rod (35) is vertically distributed with the base (1).

4. The PICC placement assist device according to claim 2, characterized in that: The threaded block (37) is threadedly connected to the threaded rod (31) via a threaded groove (38), and the threaded groove (38) is adapted to the threaded rod (31).

5. The PICC placement assist device according to claim 1, characterized in that: The receiving plate (33) is of slotted design, and the receiving plate (33) and the threaded block (37) form a rotating structure.

6. The PICC placement assist device according to claim 1, characterized in that: The second limiting plate (32) is arranged parallel to the first limiting plate (2), and the protective pad (36) is arranged symmetrically with respect to the central axis of the second limiting plate (32).

7. The PICC placement assist device according to claim 1, characterized in that: The inner wall of the first limit plate (2) is fixedly connected to an adjustment mechanism (5), and the adjustment mechanism (5) comprises an air bag (51) fixedly mounted on the inner wall of the first limit plate (2); the outer wall of the air bag (51) is fixedly connected to an air pipe (52); one end of the air pipe (52) is fixedly connected to an air cylinder (53); a movable groove (54) is provided inside the air cylinder (53); a piston (55) is mounted inside the air cylinder (53); and a movable rod (56) is fixedly connected to the top of the piston (55).

8. The PICC placement assist device according to claim 6, characterized in that: The air cylinder (53) and the piston (55) form a sliding structure, and the piston (55) is located in the movable groove (54).

9. The PICC placement assist device according to claim 6, characterized in that: The outer diameter of the piston (55) is the same as the inner diameter of the air cylinder (53). The piston (55) is in contact with the inner wall of the movable groove (54). The movable rod (56) and the air cylinder (53) form a sliding structure. The top end of the movable rod (56) is fixedly connected to the bottom of the receiving plate (33).

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