A subcutaneous tunnel construction device with contour visualization

Abstract

The present invention relates to a contour-visualized subcutaneous tunnel establishment device, comprising a bracket and a tunnel puncture needle; a movable arm is provided on the bracket, a mounting plate and a movable unit are provided on the movable arm, two parallel vertical rods are provided on the surface of one side of the mounting plate, and a hook is rotatably provided at the lower end of the vertical rod; a plane light source is provided on one side of the mounting plate; a shading plate located between the two vertical rods is provided on the mounting plate, and an arc-shaped reflective plate is longitudinally damped and hinged at the lower end of the shading plate; a plane light source is provided to irradiate the pulled-up skin, and a reflective coating is arranged at the front end of the puncture needle, so that the puncture operation is easier to distinguish the puncture depth and angle, the reflective plate not only serves the purpose of flexibly adjusting the shading area, but also can reflect the blocked light to the other side of the pulled-up skin, providing a clearer field of view for the operation, and the device of the present application can reduce the difficulty of operation and improve the success rate of puncture.

Description

Technical Field

[0001] The present invention relates to the technical field of subcutaneous tunnel surgical instruments, and more particularly to a contour-visualized subcutaneous tunnel establishment instrument. Background Art

[0002] PICC is a "lifeline" for cancer patients. As a safe and convenient venous access, it has been widely used in clinical practice. Especially for patients who need chemotherapy or infusion of hypertonic and irritating fluids, PICC is the preferred method. However, due to some restrictions, such as the small diameter of the pre-placed vein, poor vascular anatomical position, and extremely loose skin, many patients cannot successfully insert the PICC or the risk of catheter-related complications after insertion is too high. The application of tunnel PICC insertion technology has solved this problem well.

[0003] The subcutaneous tunnel needles currently used usually require medical staff to perform subcutaneous puncture operations slowly based on experience, such as Chinese Patent Application No. 201911253957.6, a subcutaneous tunnel establishment device and its use method during tunnel-type PICC catheterization. The subcutaneous puncture operation will place very high demands on medical staff and is also accompanied by higher risks. Chinese Patent Application No. 202020148081.0, a beam-guided multifunctional subcutaneous tunnel device, discloses a tunnel rod with a beam-guiding inner core. Although it can play a certain guiding role, the guiding effect is still not good and still needs further improvement. Based on this situation, the present application provides a contour-visualized subcutaneous tunnel establishment device and its application method. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a contour-visualized subcutaneous tunnel establishment device and an application method of the contour-visualized subcutaneous tunnel establishment device in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A contour visualized subcutaneous tunnel establishment instrument is constructed, which includes a bracket and a tunnel puncture needle; the bracket is provided with a movable arm with adjustable height and angle, the movable arm is provided with a strip-shaped mounting plate and a movable unit for driving the mounting plate to move toward or away from the movable arm, and the surface of the mounting plate on one side away from the movable arm is provided with two parallel vertical rods, and the lower ends of the vertical rods are rotatably provided with hooks; one side of the mounting plate is provided with a strip-shaped planar light source that emits light horizontally toward a position between the two hooks; the mounting plate is provided with a shading plate located between the two vertical rods, the two ends of the shading plate are respectively connected to the two vertical rods, and the lower end of the shading plate is longitudinally damped and hinged with an arc-shaped reflective plate; one end of the tunnel puncture needle is a puncture part, and the other end is provided with a receiving hole for accommodating a PICC catheter, the outer surface of the puncture part is provided with a reflective coating, and a spring for clamping the PICC catheter is provided in the receiving hole.

[0007] The contour visualization subcutaneous tunnel establishment instrument of the present invention, wherein the mounting plate is provided with a bidirectional screw rod for adjusting the spacing between the two vertical rods and a rotating handle for driving the bidirectional screw rod, and the mounting plate is provided with a damping sleeve mounted on the rotating handle.

[0008] The contour visualization subcutaneous tunnel establishment device described in the present invention, wherein the light shielding plate is laterally slidably connected to two transverse racks, and a linkage gear is rotatably arranged on the light shielding plate, the two transverse racks are respectively located on the upper and lower sides of the linkage gear and are both meshed with the linkage gear; the two transverse racks are respectively fixedly connected to the two vertical rods.

[0009] The contour visualization subcutaneous tunnel establishment instrument of the present invention is characterized in that the planar light source is longitudinally damped and hingedly arranged on the mounting plate.

[0010] The contour visualization subcutaneous tunnel establishment instrument of the present invention is characterized in that a power supply for supplying power to the planar light source is arranged on the mounting plate.

[0011] The contour-visualized subcutaneous tunnel-building instrument of the present invention comprises a movable arm including a manipulator and a ball-head movable unit arranged at the movable end of the manipulator.

[0012] The contour-visualized subcutaneous tunnel establishment device of the present invention is characterized in that the planar light source is irradiated obliquely downward, and the angle between the irradiation angle and the horizontal direction is in the range of 5-10 degrees.

[0013] A method for applying a contour visualization subcutaneous tunnel establishment device is applied to the contour visualization subcutaneous tunnel establishment device as described above, wherein the method comprises the steps of:

[0014] Adjust the position of the movable arm so that the mounting plate is close to the skin to be punctured, and adjust the angle of the mounting plate by adjusting the direction of the movable arm;

[0015] Make two small incisions on the skin to be punctured, and establish a subcutaneous tunnel between the two incisions;

[0016] The mobile unit controls the mounting plate to move toward the skin to be punctured, and the two hooks are respectively hooked on the epidermis of the skin of the two small openings;

[0017] The mobile unit controls the mounting plate to move away from the skin to be punctured, and two hooks are used to pull the epidermis of the two skin locations outward to set the height;

[0018] Turn on the plane light source to illuminate the pulled-up skin from one side, rotate and adjust the reflector to block the light-transmitting gap between the light-shielding plate and the skin, and reflect the direct light passing through the light-transmitting gap to the backlight side of the pulled-up skin through the reflector for illumination; the backlight side of the pulled-up skin is the operating side for medical staff to perform puncture operations;

[0019] Place the PICC catheter head into the receiving hole, and then operate the tunnel puncture needle to puncture from a small opening. During the puncture process, the puncture depth is determined by the light-transmitting outline of the pulled-up skin, and the puncture direction is determined by observing the reflected light from the reflective coating on the puncture part surface;

[0020] When the tunnel puncture needle has completely passed through, the PICC catheter can be removed from the receiving hole.

[0021] The beneficial effects of the present invention are as follows: adjusting the position of the movable arm so that the mounting plate is close to the skin to be punctured, and adjusting the angle direction of the mounting plate by adjusting the direction of the movable arm; cutting two small holes on the skin to be punctured, and establishing a subcutaneous tunnel between the two small holes; controlling the mounting plate to move toward the skin to be punctured by a moving unit, and respectively hooking the epidermis of the skin of the two small holes; controlling the mounting plate to move away from the skin to be punctured by a moving unit, and pulling the epidermis of the two skins outward to a set height by the two hooks; turning on the plane light source, irradiating the pulled-up skin from one side, rotating and adjusting the reflective plate to block the light-transmitting gap between the light-shielding plate and the skin, and reflecting the direct light passing through the light-transmitting gap to the backlight side of the pulled-up skin by the reflective plate for illumination; the backlight side of the pulled-up skin is the operating side for medical staff to perform puncture operations; placing the tube head of the PICC catheter into the receiving hole, and then operating the tunnel puncture needle to perform puncture from a small hole, determining the puncture depth by the light-transmitting contour of the pulled-up skin during the puncture process, and determining the puncture direction by observing the reflected light of the reflective coating on the surface of the puncture part;

[0022] The skin epidermis is hung and slightly pulled by hooks on both sides to facilitate subsequent puncture operations, and a plane light source is provided to illuminate the pulled-up skin, and a reflective coating is arranged at the front end of the puncture needle to make it easier to distinguish the puncture depth and angle during the puncture operation. In addition, a shading plate and a reflector are designed to shield light to avoid interference with the light source during operation. The reflector not only serves the purpose of flexibly adjusting the shading area, but also can reflect the blocked light to the other side of the pulled-up skin, providing a clearer field of view for the operation. Combining the above functions, the equipment of this application can reduce the difficulty of operation and improve the success rate of puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0024] Figure 1 It is a schematic diagram of the assembly structure of the outline visualization subcutaneous tunnel establishment instrument bracket, movable arm, mobile unit, and mounting plate of a preferred embodiment of the present invention;

[0025] Figure 2 It is a cross-sectional view of a mounting plate of a contour visualized subcutaneous tunnel establishment device according to a preferred embodiment of the present invention;

[0026] Figure 3 It is a cross-sectional view of a tunnel puncture needle of a contour-visualized subcutaneous tunnel establishment instrument according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0028] The contour visualization subcutaneous tunnel establishment device of the preferred embodiment of the present invention is as follows Figure 1 See also Figure 2 and Figure 3, including a bracket 1 and a tunnel puncture needle 2; the bracket 1 is provided with a movable arm 3 with adjustable height and angle, the movable arm 3 is provided with a strip-shaped mounting plate 4 and a moving unit 5 for driving the mounting plate 4 to move toward or away from the movable arm, and the surface of the mounting plate 4 on one side away from the movable arm 3 is provided with two parallel vertical rods 40, and the lower end of the vertical rod 40 is rotatably provided with a hook 41; one side of the mounting plate 4 is provided with a strip-shaped plane light source 42 that emits light horizontally toward the position between the two hooks 41; the mounting plate 4 is provided with a shading plate 43 located between the two vertical rods 40, the two ends of the shading plate 43 are respectively connected to the two vertical rods 40, and the lower end of the shading plate 43 is longitudinally damped and hinged with an arc-shaped reflective plate 44; one end of the tunnel puncture needle 2 is a puncture part 20, and the other end is provided with a receiving hole 21 for accommodating a PICC catheter, the outer surface of the puncture part 20 is provided with a reflective coating, and a spring 210 for clamping the PICC catheter is provided in the receiving hole 21;

[0029] Adjust the position of the movable arm 3 so that the mounting plate 4 is close to the skin to be punctured, and adjust the angle of the mounting plate 4 by adjusting the direction of the movable arm 3; make two small incisions on the skin to be punctured, and establish a subcutaneous tunnel between the two small incisions;

[0030] The mounting plate 4 is controlled to move toward the skin to be punctured by a moving unit 5 (an existing linear drive component can be used, such as a linear motor), and the two hooks 41 are respectively hooked on the epidermis of the skin of the two small openings; the mounting plate 4 is controlled to move away from the skin to be punctured by the moving unit 5, and the epidermis of the two skins is pulled outward to a set height by the two hooks 41;

[0031] The plane light source 42 is turned on to illuminate the pulled-up skin from one side, and the reflector 44 is rotated to adjust the light-transmitting gap between the light-shielding plate 43 and the skin. The size of the gap will fluctuate according to the actual operation and factors such as skin elasticity. At this time, it is necessary to adjust the reflector 44 to adaptively block the light; the reflector 44 reflects the direct light passing through the light-transmitting gap to the backlight side of the pulled-up skin for illumination, thereby improving the clarity of the operator's field of vision; the backlight side of the pulled-up skin is the operating side for medical staff to perform puncture operations;

[0032] Place the tube head of the PICC catheter into the receiving hole (clamped by the spring sheet 210 to prevent it from falling out), then operate the tunnel puncture needle 2 to puncture from a small opening. During the puncture process, the puncture depth is determined by the light-transmitting contour of the pulled-up skin, and the puncture direction is determined by observing the reflected light from the reflective coating on the surface of the puncture part; when the tunnel puncture needle is completely inserted, the PICC catheter can be taken out of the receiving hole;

[0033] The hooks 41 on both sides are used to hang and slightly pull the skin epidermis, which is convenient for subsequent puncture operations. At the same time, a plane light source 42 is provided to illuminate the pulled skin, and a reflective coating is arranged at the front end of the puncture needle, so that the puncture operation is easier to distinguish the depth and angle of the puncture. In addition, a shading plate and a reflector are designed to shield light to avoid interference from the light source during operation. The reflector 44 not only serves the purpose of flexibly adjusting the shading area, but also can reflect the blocked light to the other side of the pulled skin, providing a clearer field of view for the operation. Combining the above functions, the device of the present application can reduce the difficulty of operation and improve the success rate of puncture.

[0034] It should be noted that the hook 41 can be a sterilized embroidery hook, which has a certain strength and a small outer diameter. It will only form two very small holes on the epidermis, causing little damage and easy healing. When the hook 41 is set, a hanging setting is adopted to ensure a certain degree of flexibility.

[0035] Preferably, the mounting plate 4 is provided with a bidirectional screw rod 45 for adjusting the distance between the two vertical rods 40 (a groove is provided on the lower surface of the mounting plate 4 to install the bidirectional screw rod 45, and the groove is covered by a cover 49, and a movable groove for the vertical rod to move is provided on the cover at the place where the vertical rod needs to be connected) and a rotating handle 46 for driving the bidirectional screw rod, and the mounting plate 4 is provided with a damping sleeve mounted on the rotating handle; the purpose of adopting this design is to adjust the distance between the two vertical rods 40, to form an outward angle when pulling the skin, and to ensure the pulling effect.

[0036] Preferably, two transverse racks 47 are laterally slidably connected to the shading plate 43, and a linkage gear 48 is rotatably arranged on the shading plate. The two transverse racks 47 are respectively located on the upper and lower sides of the linkage gear 48 and are meshed with the linkage gear 48; the two transverse racks 47 are respectively fixedly connected to the two vertical rods 40; this structure is adopted as a further supplement to the bidirectional screw rod, and has good stability, can ensure the synchronous movement of the two sides, is not prone to shaking, and ensures the stability of pulling the epidermis.

[0037] Preferably, the planar light source 42 is hingedly disposed on the mounting plate 4 with a longitudinal damping; preferably, when in use, the planar light source 42 is irradiated obliquely downward, and the angle between the irradiation angle and the horizontal direction is in the range of 5-10 degrees.

[0038] Preferably, a power source for supplying power to the planar light source 42 is disposed on the mounting plate 4, and an external power source may also be used as required.

[0039] Preferably, the movable arm 3 includes a manipulator 30 and a ball head movable unit 31 arranged at the movable end of the manipulator; the structure is simple and can be easily adaptively adjusted according to the actual skin position to be punctured and the patient's body position.

[0040] A method for applying a contour visualization subcutaneous tunnel establishment device is applied to the contour visualization subcutaneous tunnel establishment device as described above, wherein the method comprises the steps of:

[0041] Adjust the position of the movable arm so that the mounting plate is close to the skin to be punctured, and adjust the angle of the mounting plate by adjusting the direction of the movable arm;

[0042] Make two small incisions on the skin to be punctured, and establish a subcutaneous tunnel between the two incisions;

[0043] The mobile unit controls the mounting plate to move toward the skin to be punctured, and the two hooks are respectively hooked on the epidermis of the skin of the two small openings;

[0044] The mobile unit controls the mounting plate to move away from the skin to be punctured, and two hooks are used to pull the epidermis of the two skin locations outward to set the height;

[0045] Turn on the plane light source to illuminate the pulled-up skin from one side, rotate and adjust the reflector to block the light-transmitting gap between the light-shielding plate and the skin, and reflect the direct light passing through the light-transmitting gap to the backlight side of the pulled-up skin through the reflector for illumination; the backlight side of the pulled-up skin is the operating side for medical staff to perform puncture operations;

[0046] Place the PICC catheter head into the receiving hole, and then operate the tunnel puncture needle to puncture from a small opening. During the puncture process, the puncture depth is determined by the light-transmitting outline of the pulled-up skin, and the puncture direction is determined by observing the reflected light from the reflective coating on the puncture part surface;

[0047] When the tunnel puncture needle is completely inserted, the PICC catheter can be removed from the receiving hole;

[0048] The skin epidermis is hung and slightly pulled by hooks on both sides to facilitate subsequent puncture operations, and a plane light source is provided to illuminate the pulled-up skin, and a reflective coating is arranged at the front end of the puncture needle to make it easier to distinguish the puncture depth and angle during the puncture operation. In addition, a shading plate and a reflector are designed to shield light to avoid interference with the light source during operation. The reflector not only serves the purpose of flexibly adjusting the shading area, but also can reflect the blocked light to the other side of the pulled-up skin, providing a clearer field of view for the operation. Combining the above functions, the equipment of this application can reduce the difficulty of operation and improve the success rate of puncture.

[0049] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A contour-visualized subcutaneous tunnel-building device, characterized in that: The invention comprises a bracket and a tunnel puncture needle; the bracket is provided with a movable arm with adjustable height and angle, the movable arm is provided with a strip-shaped mounting plate and a movable unit for driving the mounting plate to move toward or away from the movable arm, a side surface of the mounting plate away from the movable arm is provided with two parallel vertical rods, and a hook is rotatably provided at the lower end of the vertical rod; a strip-shaped planar light source which emits light horizontally toward a position between the two hooks is provided on one side of the mounting plate; a light shielding plate located between the two vertical rods is provided on the mounting plate, the two ends of the light shielding plate are respectively connected to the two vertical rods, and the lower end of the light shielding plate is longitudinally damped and hinged with an arc-shaped reflective plate; one end of the tunnel puncture needle is a puncture part, and the other end is provided with a receiving hole for receiving a PICC catheter, the outer surface of the puncture part is provided with a reflective coating, and a spring for clamping the PICC catheter is provided in the receiving hole.

2. The contour visualization subcutaneous tunnel establishment device according to claim 1, characterized in that: The mounting plate is provided with a bidirectional screw rod for adjusting the distance between the two vertical rods and a rotating handle for driving the bidirectional screw rod, and the mounting plate is provided with a damping sleeve sleeved on the rotating handle.

3. The contour visualization subcutaneous tunnel establishment device according to claim 2, characterized in that: Two transverse racks are slidably connected to the shading plate in a transverse manner, and a linkage gear is rotatably arranged on the shading plate. The two transverse racks are respectively located on the upper and lower sides of the linkage gear and are both meshed with the linkage gear; the two transverse racks are respectively fixedly connected to the two vertical rods.

4. The contour visualization subcutaneous tunnel establishment device according to claim 1, characterized in that: The planar light source is hingedly arranged on the mounting plate in a longitudinal damping manner.

5. The contour visualization subcutaneous tunnel establishment device according to claim 1, characterized in that: The mounting plate is provided with a power supply for supplying power to the planar light source.

6. The contour visualization subcutaneous tunnel establishment device according to claim 1, characterized in that: The movable arm comprises a manipulator and a ball head movable unit arranged at the movable end of the manipulator.

7. The contour visualization subcutaneous tunnel establishment device according to claim 1, characterized in that: The plane light source is irradiated obliquely downward, and the angle between the irradiation angle and the horizontal direction is in the range of 5-10 degrees.

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