CN219374965U - Booster for spiral skin expander - Google Patents

Abstract

The utility model discloses a booster for a spiral skin expander, which comprises a sleeve, wherein a grab handle is formed at the closed end of the sleeve, and the maximum distance L between the edge of the grab handle and the central axis of the spiral skin expander is larger than the maximum radius R of the spiral skin expander; a through type guide wire tunnel is formed along the central axis of the sleeve. Through setting up the grab handle, and its edge is greater than the biggest radius R of spiral skin expander from the biggest distance L of spiral skin expander central axis, the arm of force length that produces when the doctor holds the grab handle around spiral skin expander central axis knob, is greater than the arm of force length that produces when holding spiral skin expander around its central axis knob, can know by lever principle, the arm of force is longer then laborsaving more, so the technical scheme that this application disclosed compares in the prior art that directly revolves spiral skin expander and operates more easily.

Description

Booster for spiral skin expander

Technical Field

The utility model mainly relates to the technical field of medical instruments, in particular to a booster for a spiral skin expander.

Background

In performing percutaneous tracheotomy, the physician needs to use a spiral dilator to dilate the tracheostoma. The hand-held part of the spiral skin expander in the prior art is smaller, so that doctors are difficult to effectively hold, and the force arm is too small when screwing the spiral skin expander, so that force application is seriously influenced, inconvenience is caused to operation, and complications such as bleeding and damage are increased. Therefore, a booster for a screw expander is needed.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects in the prior art and providing a booster for a spiral skin expander.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the booster for the spiral skin expander comprises a sleeve, wherein a grab handle is formed at the closed end of the sleeve, and the maximum distance L between the edge of the grab handle and the central axis of the spiral skin expander is larger than the maximum radius R of the spiral skin expander; a through type guide wire tunnel is formed along the central axis of the sleeve.

As a further improvement of the above technical scheme:

the grab handle consists of two sleeves connected with two closed ends, and the three sleeves are arranged in a three-fork shape; a through type guide wire tunnel is formed along the central axis of the two sleeves forming the grab handle.

Each sleeve is matched with spiral skin expanders of different types.

Compared with the prior art, the utility model has the advantages that:

through setting up the grab handle, and its edge is greater than the biggest radius R of spiral skin expander from the biggest distance L of spiral skin expander central axis, the arm of force length that produces when the doctor holds the grab handle around spiral skin expander central axis knob, is greater than the arm of force length that produces when holding spiral skin expander around its central axis knob, can know by lever principle, the arm of force is longer then laborsaving more, so the technical scheme that this application disclosed compares in the prior art that directly revolves spiral skin expander and operates more easily.

Drawings

FIG. 1 is a schematic view of the structure of a booster in embodiment 1;

FIG. 2 is a schematic cross-sectional view of the booster of example 1;

FIG. 3 is a schematic view showing the structure of a booster in example 2;

FIG. 4 is a schematic view showing the structure of a booster in example 3;

FIG. 5 is a schematic view showing the structure of a booster in example 4;

FIG. 6 is a schematic view showing the structure of a booster in example 5;

FIG. 7 is a schematic view showing the structure of a booster in example 6;

fig. 8 is a schematic structural view of a booster in example 7.

The reference numerals in the drawings denote: 1. a sleeve; 2. a grab handle; 3. a spiral skin expander; 4. a guidewire tunnel; 5. a guide wire.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific examples.

Example 1

As shown in fig. 1 and 2, the booster for the spiral skin expander of the embodiment comprises a sleeve 1, a grab handle 2 is formed at the closed end of the sleeve 1, and the maximum distance L between the edge of the grab handle 2 and the central axis of the spiral skin expander 3 is larger than the maximum radius R of the spiral skin expander 3; a through-type guidewire tunnel 4 is formed along the central axis of the sleeve 1. The grab handle 2 consists of two sleeves 1 connected with two closed ends, and the three sleeves 1 are arranged in a three-fork shape; a through type guide wire tunnel 4 is formed along the central axis of the two sleeves 1 forming the grab handle 2. Each sleeve 1 is adapted to a different type of screw skin expander 3. When percutaneous tracheotomy is performed, firstly, the tail end (i.e. the hand-held part) of the spiral skin expander 3 is inserted into the sleeve 1 to form connection, the external part of the guide wire 5 which is placed in the trachea penetrates from the tip of the skin expander, passes out of the sleeve 1 and the grab handle 2 along the guide wire tunnel 4, and then a doctor holds the grab handle 2 to spirally expand the tip of the spiral skin expander 3 along the guide wire 5 into the trachea. Because the maximum distance L between the edge of the grab handle 2 and the central axis of the spiral skin expander 3 is larger than the maximum radius R of the spiral skin expander 3, the length of a force arm generated when a doctor holds the grab handle 2 and twists around the central axis of the spiral skin expander 3 is larger than the length of a force arm generated when the doctor holds the spiral skin expander 3 and twists around the central axis of the spiral skin expander 3, and the longer the force arm is, the more labor-saving the lever principle is, so the technical scheme disclosed by the application is easier to operate compared with the prior art of directly screwing the spiral skin expander 3. Because the spiral skin expander 3 has different types and specifications (the selection of the types and specifications is not influenced by factors such as manufacturers and market shares), the tail end (i.e. the handheld part) of the spiral skin expander 3 with each type and specification is different in shape, in order to adapt to the spiral skin expander 3 with various types and specifications, the grab handle 2 is arranged into two sleeves 1 connected with each other at the closed end, a three-fork structure is formed after the two sleeves are connected with the other sleeve 1, the three sleeves 1 adapt to the spiral skin expander 3 with different types, and when a doctor selects any sleeve 1 to be connected with the spiral skin expander 3 with the corresponding specification and model, the other two sleeves 1 are used as the grab handle 2. Meanwhile, in order to smoothly pass through the guide wire 5 when the sleeve 1 forming the grab handle 2 is connected with the spiral skin expander 3, a through guide wire tunnel 4 is formed along the central axes of the two sleeves 1 forming the grab handle 2.

Preferably, the guide wire tunnel 4 is tapered on the side near the open end of the sleeve 1, this arrangement making the threading of the guide wire 5 smoother.

Example 2

As shown in fig. 3, a second embodiment of the booster for a screw expander of the present utility model is substantially the same as embodiment 1, except that: in this embodiment, the grip 2 is spherical.

Example 3

As shown in fig. 4, a third embodiment of the booster for a screw expander of the present utility model is substantially the same as embodiment 1, except that: in this embodiment, the handle 2 is hemispherical.

Example 4

As shown in fig. 5, a fourth embodiment of the booster for a screw expander of the present utility model is substantially the same as embodiment 1, except that: in this embodiment, the handle 2 is disc-shaped, and the side surface is formed with an anti-slip rib.

Example 5

As shown in fig. 6, a fifth embodiment of the booster for a screw expander of the present utility model is substantially the same as embodiment 1, except that: in this embodiment, the handle 2 is cylindrical and forms a T shape with the sleeve 1.

Example 6

As shown in fig. 7, a sixth embodiment of a booster for a screw expander of the present utility model is substantially the same as embodiment 1, except that: in this embodiment, the handle 2 is cylindrical and forms a 7 shape with the sleeve 1.

Example 7

As shown in fig. 8, a seventh embodiment of the booster for a screw expander of the present utility model is substantially the same as embodiment 1, except that: in this embodiment, the handle 2 is rectangular with rounded edges. In other embodiments, the grip 2 may be provided in other shapes, which are not exemplified herein.

While the utility model has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims (3)

1. The utility model provides a spiral booster unit for skin expander which characterized in that: the skin expander comprises a sleeve (1), wherein a grab handle (2) is formed at the closed end of the sleeve (1), and the maximum distance L between the edge of the grab handle (2) and the central axis of the spiral skin expander (3) is larger than the maximum radius R of the spiral skin expander (3); a through type guide wire tunnel (4) is formed along the central axis of the sleeve (1).

2. The booster for a screw expander of claim 1, wherein: the grab handle (2) consists of sleeves (1) connected with two closed ends, and the three sleeves (1) are arranged in a three-fork shape; a through type guide wire tunnel (4) is formed along the central axis of the two sleeves (1) forming the grab handle (2).

3. The booster for a screw expander of claim 2, wherein: each sleeve (1) is matched with spiral skin expanders (3) of different types.