CN219147815U

CN219147815U - Split type piercing depth is used in navigation

Info

Publication number: CN219147815U
Application number: CN202223305728.4U
Authority: CN
Inventors: 许炜; 肖建如; 李博; 朱志朋; 王鹏儒; 袁昊; 白丹阳; 周尚斌; 辛映烨; 汪雅静
Original assignee: Shanghai Changzheng Hospital
Current assignee: Shanghai Changzheng Hospital
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-06-09
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a split type puncture device for navigation, which is characterized in that a navigation channel connecting rod is added at the distal end of a long guide handle, so that the long guide handle can directly penetrate through the navigation device during puncture, the process of arranging a Kirschner wire or a guide wire in the navigation device and then adapting the Kirschner wire or the guide wire with a traditional puncture needle is omitted, the puncture process is simplified, and the precision is improved.

Description

Split type piercing depth is used in navigation

Technical Field

The utility model relates to the field of puncture devices, in particular to a split type puncture device for navigation.

Background

The existing puncture device is not matched with a navigation channel, the handle part is large in size and cannot pass through the navigation channel, so that when the puncture needle is matched with a surgical navigation system, a Kirschner wire or a guide wire is needed to be placed in the puncture needle through the navigation system, then the Kirschner wire or the guide wire is matched with the traditional puncture needle, the use is complex, and the final precision can be influenced by multiple times of adaptation.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a split type puncture device for navigation.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the split type puncture device for navigation comprises a long guide handle, wherein the long guide handle comprises a long handle inner sleeve, a long handle outer sleeve and a first spring; the long handle inner sleeve is sleeved in the long handle outer sleeve, the proximal end of the long handle outer sleeve is of a cavity structure provided with the first spring, the straight rod section of the long handle inner sleeve penetrates through the first spring, and the pressing part at the proximal end of the straight rod section can slide in the cavity structure and is used for pressing the first spring; an annular groove is formed in the inner wall of the distal end of the long-handle outer sleeve, and a plurality of first marbles are circumferentially embedded in the distal end wall of the long-handle inner sleeve;

the T-shaped short handle comprises a short handle inner sleeve, a handle, a second spring, a short handle outer sleeve, a buckle and a second marble; the short handle outer sleeve is arranged in the cavity, the proximal end of the short handle outer sleeve is arranged in the cavity and can slide in the cavity to press the second spring, and the short handle inner sleeve penetrates through the short handle outer sleeve and the second spring to be fixed on the handle; the buckling glove is arranged outside the short handle outer sleeve; an annular groove is formed in the inner wall of the distal end of the short handle outer sleeve, and a plurality of second marbles are circumferentially embedded in the distal end wall of the short handle inner sleeve;

a navigation channel link comprising a front channel and a rear handle; the front end channel is hollow cylinder, the rear end handle is solid cylinder structure, and the front end channel and the rear end handle are fixedly connected; the front end channel is detachably connected with the guide long handle;

the puncture needles comprise needle cores and needle tubes, the needle cores are nested in the needle tubes, and annular grooves are formed in the tail ends of the needle cores; the tail end of the needle tube is provided with an annular groove.

Further, a through hole for embedding the first marble is formed in the periphery of the far end wall of the long-handle inner sleeve, the diameter of the through hole is gradually reduced from the outer side to the inner side, the minimum diameter of the through hole is smaller than that of the first marble, the maximum diameter of the through hole is larger than that of the first marble, and the marble can freely slide in the through hole.

Further, a through hole for embedding the second marble is formed in the periphery of the far end wall of the short-handle inner sleeve, the diameter of the through hole is gradually reduced from the outer side to the inner side, the minimum diameter of the through hole is smaller than the diameter of the second marble, the maximum diameter of the through hole is larger than the diameter of the second marble, and the marble can freely slide in the through hole.

Further, the long handle outer sleeve is slidable within the forward end passage.

Further, the long handle outer sleeve can be arranged inside the short handle inner sleeve, and after the long handle inner sleeve is arranged, the long handle inner sleeve is connected with the needle core, and can be used as a common puncture to operate the needle core.

Compared with the prior art, the utility model has the following technical advantages:

according to the utility model, the navigation channel connecting rod is added at the distal end of the long guide handle, so that the long guide handle can directly pass through the navigation device during puncture, the process of arranging the Kirschner wire or the guide wire in the navigation device and then adapting the Kirschner wire or the guide wire with the traditional puncture needle is omitted, the puncture process is simplified, and the precision is improved.

Drawings

FIG. 1 is a cross-sectional view of a guide long handle and navigation channel link of the present utility model.

Fig. 2 is a partial schematic view of the guide elongate handle of the present utility model.

Fig. 3 is a schematic view of a needle cannula and a needle core of the present utility model.

Fig. 4 is a cross-sectional view of the T-handle of the present utility model.

Detailed Description

The present utility model will be described in detail and specifically by way of the following specific examples and drawings to provide a better understanding of the present utility model, but the following examples do not limit the scope of the present utility model.

Referring to fig. 1, 2, 3 and 4, the present embodiment discloses a split type puncture device for navigation, comprising a guiding long handle 1, wherein the guiding long handle 1 comprises a long handle inner sleeve 11, a long handle outer sleeve 12 and a first spring 13; the long handle inner sleeve 11 is sleeved in the long handle outer sleeve 12, the proximal end of the long handle outer sleeve 12 is of a cavity structure provided with the first spring 13, a straight rod section of the long handle inner sleeve 11 penetrates through the first spring 13, and a pressing part at the proximal end of the straight rod section can slide in the cavity structure and is used for pressing the first spring 13; an annular groove is formed in the inner wall of the distal end of the long-handle outer sleeve 12, and a plurality of first marbles 14 are circumferentially embedded in the distal end wall of the long-handle inner sleeve 11;

a T-shaped short handle 4 comprising a short handle inner sleeve 41, a handle 42, a second spring 43, a short handle outer sleeve 44, a clasp 45 and a second marble 46; the handle 42 is internally provided with a cavity, the second spring 43 is arranged in the cavity, the proximal end of the short handle outer sleeve 44 is arranged in the cavity and can slide in the cavity for pressing the second spring 43, and the short handle inner sleeve 41 passes through the short handle outer sleeve 44 and the second spring 43 to be fixed on the handle 42; the clasp 45 is sleeved outside the short handle outer sleeve 44; an annular groove is formed in the inner wall of the distal end of the short handle outer sleeve 44, and a plurality of second marbles 46 are circumferentially embedded in the distal end wall of the short handle inner sleeve 41;

a navigation channel link 2 comprising a front channel 21 and a rear handle 22; the front end channel 21 is hollow cylinder, and the rear end handle 22 is solid cylinder structure, which are fixedly connected; the front end channel 21 is detachably connected with the guide long handle 1;

the puncture needles 3 comprise needle cores 31 and needle tubes 32, the needle cores 31 are nested in the needle tubes 32, and annular grooves are formed in the tail ends of the needle cores 31; the tail end of the needle tube 32 is provided with an annular groove.

As a preferred example, a through hole for embedding the first marble 14 is formed in the distal end wall circumference of the long-handled inner sleeve 11, the diameter of the through hole is gradually reduced from the outside to the inside, and the minimum diameter is smaller than the diameter of the first marble 14.

As a preferred example, a through hole for embedding the second marble 46 is formed in the distal end wall circumference of the short-handled inner sleeve 41, the diameter of the through hole is tapered from the outside to the inside, and the minimum diameter is smaller than the diameter of the second marble 46.

The working principle of the device is as follows:

after the front end channel 21 of the navigation channel connecting rod 2 moves to a distal fixed position of the guiding long handle 1, the buckle of the guiding long handle 1 is pressed, the long handle inner sleeve 11 moves downwards, the first marble 14 moves to the groove position of the long handle outer sleeve 12 along with the long handle inner sleeve 11, at the moment, the first marble 14 is in a free position, the needle core 31 is inserted from the distal end of the long handle inner sleeve 11, the annular groove at the tail of the needle core 31 is aligned with the marble, at the moment, the buckle is released, the long handle inner sleeve 11 is reset under the action of the first spring 13, the first marble 14 enters the groove at the tail of the needle core 31 to be clamped, and the guiding long handle 1 is connected with the needle core 31;

when in puncture, the tail end of the long-handle inner sleeve 11 is used for boosting or tapping to complete the puncture, so that the puncture needle 3 completely passes through the front end channel 21 of the navigation channel connecting rod 2, then the buckle of the long-handle inner sleeve 11 is pressed down to enable the long-handle inner sleeve 11 to move downwards, the first marble 14 is aligned with the annular groove of the long-handle outer sleeve 12, the needle core 31 is separated from the long-handle inner sleeve 11, and the long-handle guide 1 is pulled out, so that the long-handle guide 1 can be directly removed because the navigation channel connecting rod 2 is not connected with the puncture needle 3;

then pressing the button 45 of the T-shaped short handle 4 to align the second marble 46 on the short handle inner sleeve 41 with the annular groove of the short handle outer sleeve 44, then inserting the needle tube 32 from the distal end of the short handle inner sleeve 41 to align the second marble 46 with the groove at the end of the needle tube 32, loosening the button 45, resetting the short handle inner sleeve 41, enabling the second marble 46 to enter the groove at the end of the needle tube 32, and clamping the needle tube 32;

the process of connecting the long guide handle 1 to the needle core 31 is repeated by inserting the long guide handle 1 into the proximal end of the inner sleeve 41 with short handle at the time of operation, and after the connection is completed, the needle core 31 is operated by using the long guide handle 1.

The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.

Claims

1. A split type puncture device for navigation, comprising:

the guiding long handle (1) comprises a long handle inner sleeve (11), a long handle outer sleeve (12) and a first spring (13); the long handle inner sleeve (11) is sleeved in the long handle outer sleeve (12), the proximal end of the long handle outer sleeve (12) is of a cavity structure provided with the first spring (13), a straight rod section of the long handle inner sleeve (11) penetrates through the first spring (13), and a pressing part at the proximal end of the straight rod section can slide in the cavity structure and is used for pressing the first spring (13); an annular groove is formed in the inner wall of the far end of the long handle outer sleeve (12), and a plurality of first marbles (14) are circumferentially embedded in the far end wall of the long handle inner sleeve (11);

a T-shaped short handle (4) comprising a short handle inner sleeve (41), a handle (42), a second spring (43), a short handle outer sleeve (44), a buckle (45) and a second marble (46); the handle (42) is internally provided with a cavity, the second spring (43) is arranged in the cavity, the proximal end of the short handle outer sleeve (44) is arranged in the cavity and can slide in the cavity for pressing the second spring (43), and the short handle inner sleeve (41) passes through the short handle outer sleeve (44) and the second spring (43) to be fixed on the handle (42); the buckling handle (45) is sleeved outside the short handle outer sleeve (44); an annular groove is formed in the inner wall of the distal end of the short handle outer sleeve (44), and a plurality of second marbles (46) are circumferentially embedded in the distal end wall of the short handle inner sleeve (41);

a navigation channel link (2) comprising a front channel (21) and a rear handle (22); the front end channel (21) is hollow cylinder, and the rear end handle (22) is solid cylinder structure, which are fixedly connected; the front end channel (21) is detachably connected with the guide long handle (1);

the puncture needles (3) comprise needle cores (31) and needle tubes (32), the needle cores (31) are nested in the needle tubes (32), and annular grooves are formed in the tail ends of the needle cores (31); an annular groove is formed in the tail end of the needle tube (32).

2. The split type puncture device for navigation according to claim 1, wherein a through hole for embedding the first marble (14) is formed in the periphery of the distal end wall of the long-handled inner sleeve (11), the diameter of the through hole is gradually reduced from the outside to the inside, and the minimum diameter of the through hole is smaller than the diameter of the first marble (14).

3. The split type puncture device for navigation according to claim 1, wherein a through hole for embedding the second marble (46) is formed in the distal end wall periphery of the short-handled inner sleeve (41), the diameter of the through hole is gradually reduced from the outside to the inside, and the minimum diameter thereof is smaller than the diameter of the second marble (46).

4. The split navigation puncture device according to claim 1, characterized in that the long handle outer sleeve (12) is slidable in the front end channel (21).

5. The split navigation puncture device according to claim 1, characterized in that the long-handle outer sleeve (12) is mountable inside the short-handle inner sleeve (41).