A medical pen handle

Abstract

A medical pen-style handle includes a control part, a grip part, and a tube shaft. The tube shaft passes through the grip part and the control part sequentially, with its front end exposed. The control part includes a positioner and a front-end controller. The front end of the grip part is inserted into the rear opening of the front-end controller, forming a hollow tubular structure with openings at both ends. The positioner is axially positioned within the cavity formed by the front-end controller and the grip part, with its front end fixedly connected to the front-end controller. The outer wall of the positioner is in contact with the inner wall of the grip part. This application eliminates the installation work required for traditional instruments, reduces the doctor's operational steps, and avoids problems such as instrument malfunction due to improper installation. The guidewire is firmly fixed, allowing precise control of the guidewire's movement speed, distance, and force. Operation is simple and easy to learn, improving the accuracy and comfort of the instrument.

Description

Technical Field

[0001] This invention relates to a medical handle, and more particularly to a medical pen-style handle. Background Technology

[0002] According to the June 2019 issue of the *International Journal of Geriatrics*, published by Jilin University, the incidence, disability rate, and mortality rate of cardiovascular diseases have been rising year by year, with new cases accounting for approximately 0.2% of the population annually. In my country, with a population of 1.35 billion, this translates to approximately 2.7 million new patients each year. This seriously impacts human health and places a significant burden on society. With the development of medical technology, a large number of implantable interventional medical devices for treating cardiovascular diseases have emerged on the market. These devices require guidewires for guidance during intravascular delivery, and the smoothness of guidewire movement determines the effectiveness of the device. Currently, most guidewire fixation handles require installation by the surgeon during the procedure, making it difficult to precisely control the guidewire's movement speed, distance, and force. This operation is complex and difficult to master, and there are also issues with incomplete guidewire fixation. Summary of the Invention

[0003] To provide a product that is easy for doctors to operate and to improve the accuracy and smoothness of guidewire control, the technical solution is as follows:

[0004] A medical pen handle includes a control part, a grip part, and a tube shaft. The tube shaft passes through the grip part and the control part in sequence, and its front end is exposed. The control part includes a positioner and a front controller. The front end of the grip part is inserted into the rear opening of the front controller to form a tubular hollow structure with openings at both ends. The positioner is axially disposed in the cavity formed by the front controller and the grip part. The front end of the positioner is fixedly connected to the front controller. The outer wall of the positioner is in contact with the inner wall of the grip part.

[0005] The gripping part consists of a front section, a middle section, and a rear section, all of which are tubular hollow structures with openings at both ends. The front section is fixedly installed in the cavity at the front end of the middle section.

[0006] A plate is installed on the inner wall near the rear end of the front section, which contacts the outer wall of the positioner.

[0007] The positioner is a hollow tubular structure with openings at both ends. Near the rear end of the outer wall, there are serrated and smooth structures on the two sides respectively.

[0008] The tube shaft includes a drawing tube and a core tube. The drawing tube is inserted axially into the core tube. Limiting holes are provided on corresponding parts of the walls of the drawing tube and the core tube. The locking pad is inserted into the limiting hole to limit the connection between the drawing tube and the core tube.

[0009] The front-end controller has raised features on its surface.

[0010] The front-end controller moves axially or circumferentially in the middle section.

[0011] The locator has a locator cap at the rear end and a protrusion at the corresponding position on the inner wall of the front section to limit the locator cap.

[0012] The middle section has a front cap that limits the circumferential movement of the front controller.

[0013] Compared with existing products, its advantages are: it eliminates the installation work required for traditional instruments, reduces the number of steps for doctors, avoids problems such as instruments failing to function properly due to improper installation, ensures the guidewire is firmly fixed, allows for precise control of the guidewire's movement speed, distance, and force, is simple and easy to use, and improves the accuracy and comfort of the instrument. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the description are briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the component;

[0017] Figure 3 A schematic diagram of the connection structure of the positioner, front end, and front end controller;

[0018] Figure 4 This is a partial schematic diagram showing the contact between the front end and the positioner via a plate;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the bottom end of the positioner;

[0020] In the diagram: 1. Drawing tube, 2. Core tube, 3. Lubend connector, 4. Positioner, 5. Plate, 6. Front section, 7. Locking pad, 8. Front section controller, 9. Middle section, 10. Rear section, 11. Positioner cap, 12. Front cap. Detailed Implementation

[0021] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] Example 1

[0024] like Figure 1 As shown, a medical pen-style handle allows the front controller 8 to be rotated to the moving state. Pushing (retracting) the front controller 8 moves the drawing tube 1, core tube 2, and positioner 4 back and forth. At this time, the plate 5 moves back and forth on the serrated part of the positioner 4, accompanied by a slight vibration and sound, to alert the operator. If temporary stopping is required during use, the front controller 8 can be rotated clockwise until it cannot be rotated further. At this time, operating the front controller 8 causes the positioner 4 to rotate at a certain angle. The positioner 4 rotates relative to the front section 6, and the protrusion on the inner wall of the front section 6 will lock the positioner cap 11 with a latch at the rear end of the positioner 4 at a designated position, preventing its axial movement, i.e., locking.

[0025] Example 2

[0026] A medical pen-style handle allows for normal forward and backward movement of the front controller 8. When rotated counterclockwise until it cannot move further, it is in the sawtooth movement position, allowing for more precise advance and retraction over small distances. Rotating clockwise allows for smooth movement, enabling slightly longer advance and retraction. The handle can be locked at any time during smooth movement. The locking pad 7 ensures that the guidewire is fixed to the drawing tube 1 and does not move on its own. The limiting pin 12 at the drawing tube 1 and the core tube 2 restricts the movement trajectory of the guidewire.

[0027] Example 3

[0028] The wire drawing tube 1, core tube 2, locking pad 7, plate 5, and front section 6 are made of stainless steel or other composite materials; the positioner cap 11, front cap 12, handle connector 3, front controller 8, middle section 9, and rear section 10 can be made of composite materials.

[0029] Example 4

[0030] The front controller 8 and the positioner 4 are provided with threaded holes of the same size near the front side and are fixed together by screws.

[0031] Example 5

[0032] The length of the front-end controller 8 is between 5 and 100 cm.

[0033] Example 6

[0034] The components involved are mainly connected by threads.

[0035] Example 7

[0036] The positioner has 10-500 saw teeth, and the tooth width is 1-20mm.

[0037] Example 8

[0038] The front controller 8 can rotate to three positions: sawtooth movement, smooth movement, and lock-on at any time.

[0039] Example 9

[0040] The front controller 8 is fixed to the wire drawing tube 1 by the fixing screw of the positioner 4, and the wire drawing tube 1 is fixed to the positioner 4.

[0041] Example 10

[0042] The front cap 12 can adopt a similar structure to the positioner cap 11. The front controller 8 has a protrusion near the rear opening, which works with the front cap 12 to limit the front controller 8.

[0043] The embodiments of this invention are intended to cover all such substitutions, modifications, and variations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A medical pen handle, comprising a control part, a grip part, and a tube shaft, wherein the tube shaft passes through the grip part and the control part sequentially, and protrudes from its front end, characterized in that... The control part includes a positioner (4) and a front controller (8). The front end of the gripping part is inserted into the rear opening of the front controller (8) to form a tubular hollow structure with openings at both ends. The positioner (4) is axially positioned in the cavity formed by the front controller (8) and the gripping part. The front end of the positioner (4) is fixedly connected to the front controller (8). The outer wall of the positioner (4) is in contact with the inner wall of the gripping part. The front section (6) is provided with a plate (5) near the rear inner wall, which is in contact with the outer wall of the positioner (4). The positioner (4) is a tubular hollow structure with openings at both ends. The two sides of its outer wall near the rear end are a sawtooth structure and a smooth structure, respectively. The front controller (8) moves axially or circumferentially on the middle section (9).

2. The medical pen handle according to claim 1, characterized in that... The gripping part includes a front section (6), a middle section (9) and a rear section (10), all of which are tubular hollow structures with openings at both ends. The front section (6) is fixedly installed in the cavity at the front end of the middle section (9).

3. The medical pen handle according to claim 1, characterized in that... The tube shaft includes a drawing tube (1) and a core tube (2). The drawing tube (1) is inserted axially into the core tube (2). Limiting holes are provided on the corresponding parts of the tube walls of the drawing tube (1) and the core tube (2). The locking pad (7) is inserted into the limiting hole to limit the connection between the drawing tube (1) and the core tube (2).

4. A medical pen handle according to claim 1, characterized in that... The front-end controller (8) has protrusions on its surface.

5. A medical pen handle according to claim 1, characterized in that... The locator (4) has a locator cap (11) at its rear end and a protrusion at the corresponding position on the inner wall of the front section (6) to limit the locator cap (11).

6. A medical pen handle according to claim 2, characterized in that... The middle section (9) is provided with a front cap (12) at the front end, which limits the circumferential movement of the front section controller (8).

7. A medical pen handle according to claim 1, characterized in that... The front end of the front-end controller (8) is provided with a robust connector (3).

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