CN212699077U

CN212699077U - Puncture awl

Info

Publication number: CN212699077U
Application number: CN202022006048.7U
Authority: CN
Inventors: 李海鹏; 李春宝; 唐佩福; 齐玮; 刘玉杰
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 2020-07-01
Filing date: 2020-09-14
Publication date: 2021-03-16
Anticipated expiration: 2030-09-14
Also published as: CN112022299A

Abstract

The utility model relates to the technical field of medical instruments, in particular to a puncture cone. The puncture cone includes a cone core and a cone shell; the cone shell is provided with a cone hole penetrating the cone shell, and the cone hole is arranged along the length direction of the cone shell; the side wall of the cone hole is provided with An open slot, the open slot is a straight slot, and the length of the open slot is the same as the length of the tapered hole; the tapered core is arranged in the tapered hole. The beneficial effect of the utility model is that: a cone hole is arranged on the cone shell, and an open groove is arranged on the side wall of the cone hole, so that when the diameter of the instrument entering the cone hole is small, it can directly enter, and when it enters the cone When the diameter of the instrument in the hole is relatively large, it can enter the tapered hole through the opening slot, that is to say, during use, the instrument does not need to be replaced frequently, which makes the operation simple, convenient and quick.

Description

Puncture awl

Technical Field

The utility model relates to the technical field of medical equipment, particularly, relate to a puncture awl.

Background

The traditional puncture cone is used for building an access path of a minimally invasive arthroscopic surgery and consists of a cone core and a cone sheath.

When the puncture awl is used, the awl core is withdrawn after the puncture awl enters a joint, and the awl sheath is left to be used as an instrument channel.

The sliding chute is a common instrument for the hip arthroscope and is used for exchanging instruments.

When the instrument of great diameter is required, need change the spout into, when the instrument of less diameter is required, change for the puncture awl again, frequent change for the operation is comparatively loaded down with trivial details consuming time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a puncture awl, it can not need according to the frequent change apparatus of different diameters for the operation is more simple, and is saved time.

The technical scheme of the utility model is like this:

a puncture cone, which comprises a cone core and a cone shell;

the taper shell is provided with a taper hole penetrating through the taper shell, the taper hole is arranged along the length direction of the taper shell, the side wall of the taper hole is provided with an open slot, the open slot is a linear slot, and the length of the open slot is the same as that of the taper hole;

the cone core is arranged in the cone hole.

Preferably, a handle is arranged at the first end of the conical core, and the second end of the conical core is a tip;

an external thread is arranged at the first end of the conical shell, an inner groove is arranged at one end of the handle close to the conical core, and an internal thread is arranged on the inner wall of the inner groove; the internal thread is matched with the external thread.

Preferably, the external thread is arranged on the outer wall of the cone shell close to the first end to form a threaded section.

Preferably, the conical shell is provided with a handle, and the handle is arranged on the outer side wall of the conical shell.

Preferably, the handle is disposed between two ends of the cone shell.

Preferably, the length of the thread section is less than or equal to the distance between the first end of the conical shell and the handle.

Preferably, the length of the cone core is equal to the length of the cone shell.

Preferably, the width of the notch of the open slot is smaller than the diameter of the taper hole.

Preferably, one end of the conical shell is provided with an arc-shaped tip.

Preferably, the thickness of the conical shell gradually decreases from the first end to the second end.

The utility model has the advantages that:

set up the taper hole on the awl shell, and set up the open slot on the lateral wall of taper hole for when the diameter that gets into the apparatus in the taper hole is less, can directly get into, and when the diameter that gets into the apparatus in the taper hole is great, it can enter into in the taper hole through the open slot, that is to say, when using, need not frequently change the apparatus, make easy operation convenient and fast.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a puncture cone provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cone core of a puncture cone provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a cone shell of the puncture cone according to an embodiment of the present invention;

fig. 4 is a second end top view of the cone shell of the puncture cone provided by the embodiment of the present invention;

fig. 5 is a side view of a cone shell of a puncture cone provided by an embodiment of the present invention;

fig. 6 is a schematic perspective view of a cone shell of the puncture cone according to an embodiment of the present invention.

In the figure:

1: a conical core; 2: a conical shell; 3: a handle; 4: a handle; 5: a handle is extended; 6: a taper hole; 7: an open slot; 8: and (4) external threads.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to fig. 1 to 6. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

A puncture cone comprises a cone core 1 and a cone shell 2; a taper hole 6 penetrating through the taper shell 2 is formed in the taper shell 2, the taper hole 6 is arranged along the length direction of the taper shell 2, an open slot 7 is formed in the side wall of the taper hole 6, the open slot 7 is a linear slot, and the length of the open slot 7 is the same as that of the taper hole 6; the cone core 1 is arranged in the cone hole 6.

The utility model discloses in, the both ends of awl shell 2 are first end and second end respectively, and wherein, first end is the one end that awl core 1 got into taper hole 6, and the second end is the one end that awl core 1 wore out from taper hole 6.

In this embodiment, the conical core 1 is arranged in the conical hole 6, and after the puncture cone is punctured into the body as a whole, the conical core 1 can be drawn out after use, and the conical shell 2 is left.

When other instruments are needed to be used at the position, such as nail placing operation, the anchor nail can be directly inserted into the taper hole 6 for use.

And when the diameter of other apparatus is greater than the diameter of taper hole 6, owing to set up open slot 7 on the lateral wall of taper hole 6, and open slot 7 runs through whole awl shell 2 for taper hole 6 can be strutted by this apparatus, and then makes this apparatus can enter into taper hole 6 in, and then gets into the human body, carries out treatment operation.

Specifically, in the present embodiment, the conical shell 2 is a rod-shaped structure, and the conical hole 6 is disposed coaxially with the conical shell 2.

It should be noted that, the taper hole 6 and the taper shell 2 may be coaxially arranged, but it is not limited to being coaxial, and it may also be arranged in other manners, such as being arranged eccentrically, or the axis of the taper hole 6 and the axis of the taper shell 2 may also be at a smaller angle, as long as it is possible to make the taper hole 6 penetrate from one end of the taper shell 2 to the other end of the taper shell 2, and then to make the conical core 1 enter the other end of the taper shell 2 from one end of the taper shell 2.

Preferably, as shown in fig. 3 and 6, a handle 3 is arranged at a first end of the conical core 1, and a tip is arranged at a second end of the conical core 1; an external thread is arranged at the first end of the conical shell 2, an inner groove is arranged at one end of the handle 3 close to the conical core 1, and an internal thread is arranged on the inner wall of the inner groove; the internal thread is matched with the external thread.

Specifically, in this embodiment, external screw thread 8 on the awl shell 2 cooperates with the inside internal thread of the inner groovy of handle 3, can make awl core 1 can be together fixed with the awl shell, inserts in the human body together, has guaranteed the wholeness.

In the embodiment, parameters such as the thread pitch of the thread are matched and set according to the parameters of the conical shell 2 and the handle 3.

In this embodiment, the external thread 8 on the conical shell 2 is a single thread, and similarly, the internal thread of the handle 3 is also a single thread.

It should be pointed out that the external thread 8 of the conical shell 2 can be a single-start thread, but it is not limited to a single-start thread, but it can also be a multi-start thread, that is, as long as the handle 3 can be connected with the conical shell 2 by means of threaded connection, so that the conical core 1 and the conical shell 2 are integrated, and the insertion into a human body is facilitated.

Preferably, in this embodiment, as shown in fig. 6, an external thread 8 is provided on the outer wall of the cone shell near the first end, forming a threaded section.

That is to say, be provided with external screw thread 8 in a section position that is close to first end on the outer wall of awl shell 2, and need not set up full screw thread on the outer wall of awl shell 2, it can realize through the partial external screw thread of one end and handle 3 between fixed connection can.

Preferably, the conical shell 2 is provided with a handle 4, and the handle 4 is arranged on the outer side wall of the conical shell 2.

The handle 4 is arranged on the conical shell 2, and the conical shell 2 can be conveniently held through the handle 4.

Specifically, in this embodiment, handle 4 sets up on the lateral wall of awl shell 2, and it is shaft-like, and the tip of pole and the lateral wall fixed connection of awl shell 2 for be certain angle between handle 4 and the awl shell 2, be convenient for handle 2 through handle 4.

More specifically, in the present embodiment, the conical shell 2 and the handle 4 are fixedly connected in an integrated manner.

It should be pointed out that the fixed connection mode between awl shell 2 and handle 4 can be an organic whole connection, but it is not only limited to an organic whole connection, and it can also be other fixed connection modes, for example can also be welding, riveting, threaded connection, joint mode etc. it as long as can realize the fixed connection between handle 4 and awl shell 2, can guarantee to realize through handle 4 that the convenient of awl shell 2 is held.

In the present embodiment, the length of the thread segment formed by the external thread 8 is less than or equal to the distance between the first end of the conical shell and the handle. With this arrangement, the external thread is relatively simple to machine.

In the present embodiment, an end of the handle 4 away from the conical shell 2 is provided with an extension handle 5, and there is a certain angle between the extension handle 5 and the handle 4, that is, the extension handle 5 is bent with respect to the handle 4, wherein the bending direction of the extension handle 5 is the first end direction.

Through the setting of extension handle 5 for when handheld, can grip extension handle 5, reuse the thumb and press handle 4, and then guarantee the stability when handheld awl shell 2.

In a preferred embodiment of the present invention, the handle 4 is disposed between two ends of the conical shell 2.

That is, the handle 4 is not disposed at the first end of the cone housing 2, nor at the second end of the cone housing 2, but is disposed between the first and second ends.

Such setting can make awl core 1 when impeling to the human body through the mode of screw thread, and it is comparatively convenient that handle 4 and awl core 1 all receive force.

It should be noted that the handle 4 may also be arranged on the side wall of the first end of the conical shell 2.

Preferably, in the present embodiment, the entry end of the conical hole 6 is provided with a chamfer.

After the chamfer is arranged at the entering end of the taper hole 6, the taper core 1 can be conveniently inserted into the taper hole 6.

Specifically, in the present embodiment, the chamfer is a fillet.

More specifically, the radius of the fillet is set according to the thickness of the cone shell 2.

It should be noted that, in the present embodiment, the chamfer is a fillet, but it is not limited to a fillet, and it may also be other types of chamfers, such as a C × 45 ° chamfer, a C × 30 ° chamfer, etc., as long as the arrangement of the chamfers facilitates the insertion of the conical core 1 into the conical hole 6.

In this embodiment, the length of the cone core is equal to the length of the cone shell.

Due to the arrangement, after the conical core is punctured and taken out, the depth of the conical shell inserted into the tissue is enough, and the joint tissue cannot influence the insertion of other instruments.

Preferably, the width of the notch of the open slot 7 is smaller than the diameter of the taper hole 6.

Specifically, when the conical core 1 enters the conical hole 6, the width of the notch of the open slot 7 is smaller than the diameter of the conical hole 6, so that the conical core 1 can be kept in the conical hole 6 and cannot be separated from the open slot 7.

When other instruments with larger diameters enter the taper hole 6, the taper shell 2 is propped open at the position of the open slot 7 under the action of elasticity, so that other instruments can enter the taper hole 6 and further enter the punching position of the taper core 1.

Preferably, as shown in fig. 4, one end of the conical shell 2 is provided with an arc-shaped tip.

In the embodiment, the conical shell 2 can enter the human body along with the conical core 1 by the arrangement, so that the operation is more convenient.

Preferably, the thickness of the conical shell 2 decreases gradually from one end to the other, as shown in fig. 3 and 5.

Specifically, in this embodiment, the thickness of awl shell 2 reduces from first end to second end gradually, and then makes awl shell 2 can be comparatively convenient follow awl core 1 and get into in the human body.

More specifically, in the present embodiment, the thickness of the first end of the conical shell 2 is 1mm thicker than the thickness of the second end.

Preferably, one end of the cone core 1 is provided with a handle 3.

In this embodiment, in order to facilitate the insertion of the awl core 1, a handle 3 is provided at an end of the awl core 1.

Specifically, the handle 4 is provided with an anti-slip structure.

The utility model has the advantages that:

set up taper hole 6 on awl shell 2, and set up open slot 7 on the lateral wall of taper hole 6 for when the diameter of the apparatus that gets into in taper hole 6 is less, can directly get into, and when the diameter of the apparatus that gets into in taper hole 6 is great, it can be through open slot 7 and get into in taper hole 6, that is to say, when using, need not frequently change the apparatus, makes easy operation convenient and fast.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A puncture cone is characterized by comprising a cone core and a cone shell;

the conical shell is provided with a conical hole penetrating through the conical shell, and the conical hole is arranged along the length direction of the conical shell; an open slot is formed in the side wall of the taper hole, the open slot is a linear slot, and the length of the open slot is the same as that of the taper hole;

the cone core is arranged in the cone hole.

2. The puncture cone of claim 1, wherein a first end of the cone core is provided with a handle and a second end of the cone core is a tip;

3. The piercing cone of claim 2, wherein the external threads are provided on an outer wall of the cone shell proximate the first end to form a threaded segment.

4. The puncture cone of claim 3, wherein the cone shell is provided with a handle disposed on an outer sidewall of the cone shell.

5. The puncture awl of claim 4, wherein the handle is disposed between two ends of the awl housing.

6. The piercing awl of claim 4, wherein the threaded segment has a length that is less than or equal to a distance between the first end of the awl housing and the handle.

7. The piercing cone of claim 1, wherein the length of the cone core is equal to the length of the cone shell.

8. The piercing cone of claim 1, wherein the slot width of the open slot is less than the diameter of the cone bore.

9. The piercing cone of claim 1, wherein the second end of the cone shell is provided with an arcuate tip.

10. The piercing cone of claim 1, wherein the thickness of the cone shell decreases from the first end to the second end.