CN220193107U

CN220193107U - Visual trepan

Info

Publication number: CN220193107U
Application number: CN202322771109.2U
Authority: CN
Inventors: 黄鑫; 罗启鹏; 李水清
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2023-12-19
Anticipated expiration: 2033-10-17

Abstract

The utility model discloses a visual trepan, belongs to the technical field of medical appliances, and solves the problem that the depth length of the visual trepan cannot be accurately adjusted in the prior art. The visual trepan comprises a tubular saw column, a rotating handle, a barrel, a spiral through groove, a positioning groove, a sliding ring, a positioning executing member and a positioning switch member, wherein the rotating handle is fixed at the upper end of the tubular saw column, the positioning executing member is fixed at the upper part of the tubular saw column, the sliding ring is slidingly connected to the outer side of the tubular saw column, and the barrel is fixed on the outer side of the sliding ring. According to the visual trepan provided by the utility model, the length of the visual trepan extending into the working sleeve is adjustable through the arrangement of the drum, the spiral through groove, the positioning groove, the sliding circular ring, the positioning executing component and the positioning switch component, and an operator can rotate the drum to adjust the depth length of the visual trepan so as to adapt to the depth length required by an operation.

Description

Visual trepan

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a visual trepan.

Background

Lumbar disc herniation is one of the common diseases, mainly due to lumbar disc herniation backward, the spinal nerves in the spinal canal are pressed, and the radioactive pain of the waist and lower limbs is generated. Surgical treatment is often required for conditions that result in nerve damage, severely affecting life. At present, the foramen mirror operation has become the mainstream technology of lumbar disc herniation. The intervertebral foramen area was reached by body surface penetration, the skin was cut through a 1cm incision, soft tissue was dilated using a soft tissue dilator, and the working sleeve was placed in the intervertebral foramen area. After the working sleeve is placed, a visual trephine can be placed in the working sleeve, and then the intervertebral foramen mirror is placed in the visual trephine. Endoscopically, the physician can see the trephine and use the trephine to trepan the foramen region, thereby accessing the spinal canal.

When the visual trephine under the endoscope is used at present, the trephine loops into the articular process bone until the bone block loosens and stops, and the trephine is considered to be penetrated. Sometimes, the ring is not stopped in time, and the ring is removed too deeply, so that the ring saw enters into the vertebral canal, the nerve in the vertebral canal is damaged, and serious consequences are caused. The depth length is the length of the visual trephine penetrating into the working sleeve, the current visual trephine has the visual trephine with various different specifications, and the depth length cannot be accurately matched with the operation requirement of the operation.

Disclosure of Invention

In view of the above analysis, the present utility model aims to provide a visual trepan, which solves the problem that the depth length of the visual trepan cannot be accurately adjusted in the prior art.

The aim of the utility model is mainly realized by the following technical scheme:

the utility model provides a visual trepan, which comprises a tubular saw post, a rotary handle, a barrel, a spiral through groove, a positioning groove, a sliding ring, a positioning executing member and a positioning switch member, wherein the tubular saw post is provided with a plurality of holes;

the upper end of the tubular saw post is fixed with a rotating handle, the upper part of the tubular saw post is fixed with a positioning executing component, the outer side of the tubular saw post is connected with a sliding circular ring in a sliding way, the outer side of the sliding circular ring is fixed with a barrel, a spiral through groove is arranged in the barrel, the positioning grooves are formed in the groove walls on two sides of the spiral through groove, the spiral through groove is connected with the positioning executing member, the rotatable positioning switch member is arranged on the lower portion of the rotating handle, and the positioning switch member can control whether the barrel can move relative to the positioning executing member or not.

Further, annular saw teeth are arranged at the lower end of the tubular saw post.

Further, the positioning executing component comprises a positioning rod, a positioning pin, a first telescopic spring and a pressing pin.

Further, the locating pins are symmetrically arranged on the upper side and the lower side of the locating rod, the locating pins can slide up and down relative to the locating rod, the locating pins are connected with the locating rod through first telescopic springs, a slidable pressing pin is arranged on one side of the locating rod, and when the pressing pin slides in the locating rod, the locating pins extend out of the locating rod.

Further, the positioning executing member further comprises a clamping groove, and the clamping groove is formed in the lower side of the positioning rod.

Further, the positioning switch component comprises a clamping pin, a first rod body, a second telescopic spring and a sleeve hinged with the rotating handle; install the second extension spring in the sleeve, the second extension spring is connected with the first body of rod, the one end of the first body of rod is fixed with the joint round pin, when the first body of rod receives tensile, the second extension spring compresses, and the first body of rod moves to the direction of keeping away from the sleeve.

Further, the pitch of the spiral through grooves is 1mm.

Further, the number of spiral turns of the spiral through groove is 10.

Further, the inner diameter of the tubular saw post is 7.5mm.

Further, the length of the tubular saw post is 250mm.

Further, a handle is arranged on one side of the positioning switch component.

Further, the tubular saw post is provided with scales, and the corresponding scales at the bottom end of the barrel are the depth length of the tubular saw post.

Compared with the prior art, the utility model has at least the following beneficial effects:

according to the visual trepan provided by the utility model, the length of the visual trepan extending into the working sleeve is adjustable through the arrangement of the drum, the spiral through groove, the positioning groove, the sliding circular ring, the positioning executing component and the positioning switch component, and an operator can rotate the drum to adjust the depth length of the visual trepan so as to adapt to the depth length required by an operation.

When the visual trepan is used, the positioning executing member can control whether the barrel can rotate relative to the tubular saw post through the barrel, the spiral through groove, the positioning groove, the sliding ring and the positioning executing member, namely, the positioning executing member can control whether the depth length of the visual trepan is in an adjustable state, so that the depth length of the visual trepan in the operation process can not be changed after the depth length is adjusted, and the purposes of adjusting the depth length of the visual trepan and being stable and reliable are achieved.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to designate like parts throughout the drawings;

FIG. 1 is a schematic illustration of one of the construction of the visual trephine of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

FIG. 4 is a second schematic view of the visual trephine of the present utility model;

fig. 5 is an enlarged view at C in fig. 4;

FIG. 6 is a schematic view of a positioning slot according to the present utility model;

FIG. 7 is a schematic cross-sectional view of a positioning actuator of the present utility model;

FIG. 8 is a schematic view of the structure of the positioning switch member of the present utility model;

fig. 9 is a schematic structural view of the positioning switch member of the present utility model.

Reference numerals:

1. the device comprises a tubular saw post, annular saw teeth, a rotary handle, a barrel, a spiral through groove, a positioning groove, a sliding circular ring, a positioning executing component, a positioning switch component and a handle, wherein the tubular saw post, the annular saw teeth, the rotary handle, the barrel, the spiral through groove, the positioning groove, the sliding circular ring and the positioning executing component are arranged in sequence, and the positioning executing component, the positioning switch component and the handle are arranged in sequence;

81. the positioning rod, 82, the positioning pin, 83, the first telescopic spring, 84, the pressing pin, 85 and the clamping groove;

91. the first rod body, the sleeve and the second telescopic spring are respectively provided with a clamping pin, 92, a first rod body, 93 and a sleeve.

Detailed Description

Preferred embodiments of the present utility model are described in detail below with reference to the attached drawing figures, which form a part of the present utility model and are used in conjunction with the embodiments of the present utility model to illustrate the principles of the present utility model.

Example 1

The embodiment provides a visual trephine, as shown in fig. 1 and 3, which comprises a tubular saw post 1, a rotary handle 3, a barrel 4, a spiral through groove 5, a positioning groove 6, a sliding circular ring 7, a positioning executing member 8 and a positioning switch member 9;

as shown in fig. 6 and 7, the rotating handle 3 is fixed at the upper end of the tubular saw post 1, the positioning executing member 8 is fixed at the upper portion of the tubular saw post 1, the sliding ring 7 is slidably connected to the outer side of the tubular saw post 1, the barrel 4 is fixed to the outer side of the sliding ring 7, the spiral through groove 5 is formed in the barrel 4, positioning grooves 6 are formed in groove walls on two sides of the spiral through groove 5, the spiral through groove 5 is in contact connection with the positioning executing member 8, the rotatable positioning switch member 9 is mounted at the lower portion of the rotating handle 3, and the positioning switch member 9 can control whether the barrel 4 moves relative to the positioning executing member 8.

The visual trepan provided by this embodiment, through setting up of cask 4, spiral through groove 5, constant head tank 6, slip ring 7, location actuating member 8 and location switch member 9 makes the visual trepan stretch into the adjustable of the length of working sleeve, and the operator can be through rotating cask 4 to reach the depth length adjustment of visual trepan, reached the required depth length of adaptation operation.

Adjustable depth length: by controlling the rotation of the drum 4, the depth of the tubular saw post can be changed, thereby adjusting the cutting depth of the visual trephine, and the structure allows an operator to accurately control different cutting depths according to the needs, thereby increasing the applicability of the visual trephine.

Positioning switch member 9: the relative movement between the drum 4 and the positioning actuator 8 can be controlled. The existence of the positioning switch member 9 can enable an operator to conveniently control whether the depth length of the visual trephine is in an adjustable state, so that the convenience and safety of operation are improved.

Preferably, as shown in fig. 2, the lower end of the tubular saw post 1 is provided with annular saw teeth 2.

Preferably, the positioning executing member 8 includes a positioning rod 81, a positioning pin 82, a first extension spring 83, and a pressing pin 84.

Preferably, as shown in fig. 4 and 5, positioning pins 82 are symmetrically disposed on the upper and lower sides of the positioning rod 81, the positioning pins 82 can slide up and down relative to the positioning rod 81, the positioning pins 82 are connected with the positioning rod 81 by a first telescopic spring 83, a slidable pressing pin 84 is disposed on one side of the positioning rod 81, and when the pressing pin 84 slides into the positioning rod 81, the positioning pins 82 extend out of the positioning rod 81.

The locating pin 82 and the locating groove 6 are matched to realize whether the depth length of the visual trephine is in an adjustable state.

Preferably, the positioning executing member 8 further includes an engaging groove 85, and the engaging groove 85 is opened at the lower side of the positioning rod 81.

Preferably, as shown in fig. 8 and 9, the positioning switch member 9 includes an engagement pin 91, a first rod 92, a second extension spring 94, and a sleeve 93 hinged to the rotating handle 3; install second extension spring 94 in the sleeve 93, second extension spring 94 is connected with first body of rod 92, the one end of first body of rod 92 is fixed with the joint pin 91, when first body of rod 92 receives the pulling force, second extension spring 94 compresses, and first body of rod 92 moves to the direction of keeping away from sleeve 93.

When the visual trepan is used, the positioning executing member 8 can control whether the barrel 4 can rotate relative to the tubular saw post 1 through the barrel 4, the spiral through groove 5, the positioning groove 6, the sliding circular ring 7 and the positioning executing member 8, namely, the positioning executing member 8 can control whether the depth length of the visual trepan is in an adjustable state, so that the depth length of the visual trepan in the operation process can not be changed after the depth length is adjusted, and the visual trepan is stable and reliable when the adjustable depth length of the visual trepan is achieved.

Preferably, the pitch of the spiral through grooves 5 is 1mm.

The visual trephine depth length of 1 circle of adjustment of the drum 4 is 1mm, the visual trephine depth length of half circle of adjustment of the drum 4 is 0.5mm, and the visual trephine depth length of 1/4 circle of adjustment of the drum 4 is 0.25mm.

Preferably, the number of the spiral turns of the spiral through groove 5 is 10.

The depth length adjustment range of the visual trephine is 10mm.

Preferably, the inner diameter of the tubular saw post 1 is 7.5mm.

Preferably, the length of the tubular saw post 1 is 250mm.

Preferably, a handle 10 is provided on one side of the positioning switch member 9.

The handle 10 is provided for facilitating the depression of the first lever 92 of the positioning switch member 9.

Preferably, the tubular saw post is provided with scales, and the corresponding scales at the bottom end of the barrel are the depth length of the tubular saw post.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. A visual trepan, characterized by: comprises a tubular saw post (1), a rotary handle (3), a barrel (4), a spiral through groove (5), a positioning groove (6), a sliding ring (7), a positioning executing component (8) and a positioning switch component (9);

the utility model discloses a tubular saw post, including tubular saw post (1), rotary handle (3) are fixed with to tubular saw post (1) upper portion, tubular saw post (1) outside sliding connection has slip ring (7), slip ring (7) outside is fixed with cask (4), spiral through groove (5) have been seted up in cask (4), constant head tank (6) have all been seted up to the both sides cell wall of spiral through groove (5), spiral through groove (5) with location executive component (8) are connected, rotatable location switch component (9) are installed to rotary handle (3) lower part, location switch component (9) can control cask (4) and can move relative location executive component (8).

2. The visual trepan of claim 1, wherein: the lower end of the tubular saw post (1) is provided with annular saw teeth (2).

3. The visual trepan of claim 1, wherein: the positioning executing member (8) includes a positioning rod (81), a positioning pin (82), a first expansion spring (83), and a pressing pin (84).

4. A visual trepan as claimed in claim 3, wherein: the utility model discloses a locating lever, including locating lever (81), locating lever (81) upper and lower bilateral symmetry be equipped with locating pin (82), locating pin (82) can be relative locating lever (81) are slided from top to bottom, just locating pin (82) with connect through first expansion spring (83) between locating lever (81), locating lever (81) one side is equipped with slidable pressure round pin (84), pressure round pin (84) to when locating lever (81) are slided in, locating pin (82) are stretched out in locating lever (81).

5. The visual trepan of claim 4, wherein: the positioning execution member (8) further comprises a clamping groove (85), and the clamping groove (85) is formed in the lower side of the positioning rod (81).

6. The visual trepan of claim 5, wherein: the positioning switch component (9) comprises a clamping pin (91), a first rod body (92), a second telescopic spring (94) and a sleeve (93) hinged with the rotating handle (3); install second telescopic spring (94) in sleeve (93), second telescopic spring (94) are connected with first body of rod (92), the one end of first body of rod (92) is fixed with joint round pin (91), when first body of rod (92) received the pulling force, second telescopic spring (94) compress, and first body of rod (92) moves to the direction of keeping away from sleeve (93).

7. The visual trepan of claim 1, wherein: the screw pitches of the spiral through grooves (5) are all 1mm.

8. The visual trepan of claim 1, wherein: the number of spiral turns of the spiral through groove (5) is 10.

9. The visual trepan of claim 1, wherein: the inner diameter of the tubular saw post (1) is 7.5mm.

10. The visual trepan of claim 1, wherein: the tubular saw post (1) is provided with scales, and the corresponding scales at the bottom end of the barrel (4) are the depth length of the tubular saw post (1).