CN213787566U

CN213787566U - Retractor for neurosurgery

Info

Publication number: CN213787566U
Application number: CN202021698726.4U
Authority: CN
Inventors: 卢冬梅; 杨秀玲; 李海娜; 马景芹; 李楠
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-07-27
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to a retractor, in particular to a retractor for neurosurgery, which belongs to the technical field of medical instruments. The novel handle sliding device comprises a rectangular plate, wherein a U-shaped rod is fixedly installed on the left side face of the rectangular plate, a first sliding rod and a second sliding rod are symmetrically and slidably installed on the U-shaped rod, the middle part of the first sliding rod is rotatably connected with a first connecting rod through a pin, the middle part of the second sliding rod is rotatably connected with a second connecting rod through a pin, a sliding block is rotatably connected with a push rod, and the push rod is in threaded connection with a threaded hole in the rectangular plate and is fixedly connected with a handle. Has the advantages that: the rotation handle drives the threaded hole internal rotation of push rod on the rectangular plate and drives the sliding block and remove left, and the removal of sliding block drives first connecting rod and second connecting rod and then drives first slide bar and second slide bar and removes the crescent of distance between the drag hook on the drag hook of realization first tractive pole and the second tractive pole along U type pole to opposite direction to the regulation that realizes the tractive width adapts to the not incision of equidimension.

Description

Retractor for neurosurgery

Technical Field

The utility model relates to a retractor, in particular to a retractor for neurosurgery, which belongs to the technical field of medical instruments.

Background

The retractor is used for retracting tissues, the required operation range is exposed, the probing and the operation are convenient, specifications of various shapes and sizes are provided, a proper retractor can be selected according to operation requirements, when the neurosurgical skull or spine operation is performed, skin and muscle tissues are often required to be retracted, the retractor is required to be used for assisting the operation at the moment, the sizes of incisions of different operations are different, incisions of different sizes need retractors with different widths, and therefore how to provide the retractor for the neurosurgical, which can adjust the pulling width, is a technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem to be solved by the present invention is: how to provide a retractor for neurosurgery which can adjust the traction width.

In order to achieve the purpose, the utility model provides a retractor for neurosurgery, which comprises a rectangular plate, a U-shaped rod is fixedly installed on the left side surface of the rectangular plate, a first sliding rod and a second sliding rod are symmetrically and slidably installed on the U-shaped rod, the middle part of the first sliding rod is rotatably connected with a first connecting rod through a pin, the middle part of the second sliding rod is rotatably connected with a second connecting rod through a pin, the structural sizes of the first connecting rod and the second connecting rod are equal and are rotatably connected with a sliding block through a pin, the first connecting rod and the second connecting rod are symmetrically arranged at two sides of the sliding block, the first sliding rod and the second sliding rod are driven by pushing the first connecting rod and the second connecting rod to slide along the U-shaped rod in opposite directions or opposite directions, the sliding block is rotatably connected with a push rod, the push rod is in threaded connection with a threaded hole on the rectangular plate, and the right end of the push rod is fixedly connected with a handle, the left side of the first sliding rod is in sliding connection with the first retraction rod and is fixed through a screw, and the left side of the second sliding rod is in sliding connection with the second retraction rod and is fixed through a screw.

Preferably, the push rod include with rectangular plate threaded connection's screw thread section, screw thread section one end with handle fixed connection, the other end and polished rod section fixed connection, polished rod section and toper section fixed connection, the polished rod section with the small circle hole on sliding block right side rotates and is connected, the toper section insert in the big circular hole on sliding block right side and with the sliding block rotates and is connected.

Preferably, the first slide bar include with U type pole sliding connection's vertical section, vertical section lower extreme and L type section fixed connection, L type section and linkage segment fixed connection, linkage segment one end sets up the through-hole, and the other end sets up the connecting hole, the linkage segment upper end set up with the first screw hole of connecting hole intercommunication, the second slide bar with first slide bar is about 3 symmetries of sliding block.

Preferably, the first retracting rod comprises a cylindrical section, second threaded holes are formed in the upper end of the cylindrical section at equal intervals, first protruding sections are symmetrically arranged on the left side and the right side of the cylindrical section, second protruding sections are arranged at the lower end of the cylindrical section, pull hooks are arranged on the second protruding sections at equal intervals, the cylindrical section, the first protruding sections and the second protruding sections are matched with the connecting holes, and the second retracting rod is symmetrical to the first retracting rod about the sliding block.

The utility model has the advantages of as follows: the rotation handle drives the threaded hole internal rotation of push rod on the rectangular plate and drives the sliding block and remove left, and the removal of sliding block drives first connecting rod and second connecting rod and then drives first slide bar and second slide bar and removes the crescent of distance between the drag hook on the drag hook of realization first tractive pole and the second tractive pole along U type pole to opposite direction to the regulation that realizes the tractive width adapts to the not incision of equidimension.

Drawings

FIG. 1: the utility model relates to an overall structure schematic diagram of a retractor for neurosurgery;

FIG. 2: the utility model discloses a schematic A-A sectional structure diagram of a retractor for neurosurgery;

FIG. 3: the utility model is shown in the enlarged structure diagram at B of FIG. 2;

FIG. 4: the utility model discloses a first sliding rod structure sketch map of a retractor for neurosurgery;

FIG. 5: the utility model relates to a first distraction rod schematic structure of retractor for neurosurgery.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The invention will be further described with reference to the following figures and examples:

as shown in figures 1-3, the utility model relates to a retractor for neurosurgery, which comprises a rectangular plate 12, a U-shaped rod 13 is fixedly arranged on the left side surface of the rectangular plate 12, a first sliding rod 5 and a second sliding rod 6 are symmetrically and slidably arranged on the U-shaped rod 13, the middle part of the first sliding rod 5 is rotatably connected with a first connecting rod 7 through a pin 4, the middle part of the second sliding rod 6 is rotatably connected with a second connecting rod 8 through a pin 4, the first connecting rod 7 and the second connecting rod 8 have equal structural dimensions and are rotatably connected with the sliding block 3 through the pin 4, the first connecting rod 7 and the second connecting rod 8 are symmetrically arranged at two sides of the sliding block 3, the sliding block 3 drives the first sliding rod 5 and the second sliding rod 6 to slide along the U-shaped rod 13 in the opposite direction or away from each other by pushing the first connecting rod 7 and the second connecting rod 8, the sliding block 3 is rotatably connected with a push rod 2, the push rod 2 is in threaded connection with a threaded hole on the rectangular plate 12, and the right end of the push rod 2 is fixedly connected with a handle 1, preferably, the handle 1 is provided with a shallow groove, friction between a hand and the handle 1 is increased, the handle 1 is convenient to rotate, the left side of the first sliding rod 5 is in sliding connection with the first retraction rod 9 and is fixed through a screw 11, the left side of the second sliding rod 6 is in sliding connection with the second retraction rod 10 and is fixed through a screw 11, when the first sliding rod 5 and the second sliding rod 6 slide along the U-shaped rod 13 symmetrically and oppositely, the first retraction rod 9 is close to the second retraction rod 10, the distance between the first retraction rod 9 and the second retraction rod 10 is reduced, when the first sliding rod 5 and the second sliding rod 6 slide along the U-shaped rod 13 symmetrically and oppositely, the first retraction rod 9 is far away from the second retraction rod 10, the distance between the first sliding rod 5 and the second sliding rod 6 is always parallel, and the first retraction rod 9 and the second retraction rod 10 are always parallel.

As shown in fig. 1-3, the push rod 2 includes a threaded section 201 in threaded connection with the rectangular plate 12, one end of the threaded section 201 is fixedly connected with the handle 1, illustratively, the threaded section 201 is welded with the handle 1, and the other end is fixedly connected with the polished rod section 202, illustratively, the threaded section 201 is welded with the polished rod section 202, the threaded section 201 is in threaded connection with a threaded hole on the rectangular plate 12, due to the self-locking property of the threaded connection, the threaded section 201 cannot rotate under the axial force, that is, only the push rod 2 can drive the sliding block 3 to move, the sliding block 3 cannot drive the push rod 2 to rotate, the polished rod section 202 is fixedly connected with the tapered section 203, illustratively, the polished rod section 202 is welded with the tapered section 203, the polished rod section 202 is rotatably connected with a small circular hole on the right side of the sliding block 3, the tapered section 203 is inserted into a large circular hole on the right side of the sliding block 3 and rotatably connected with the sliding block 3, the small circular hole is communicated with the large circular hole, and the diameter of the tapered section 203 near the end of the sliding rod section 202 is larger than the diameter of the polished rod section 202, the tapered section 203 cannot be separated from the sliding block 3, the diameter of the large round hole on the right side of the sliding block 3 is larger than that of the small round hole, and the rotation of the threaded section 201 drives the tapered section 203 to rotate in the sliding block 3 through the light rod section 202 and simultaneously drives the sliding block 3 to move.

As shown in fig. 1, 2, 4, and 5, the first sliding rod 5 includes a vertical section 501 slidably connected to the U-shaped rod 13, a lower end of the vertical section 501 is fixedly connected to an L-shaped section 502, the L-shaped section 502 is fixedly connected to a connecting section 503, one end of the connecting section 503 is provided with a through hole 504, the other end is provided with a connecting hole 506, an upper end of the connecting section 503 is provided with a first threaded hole 505 communicated with the connecting hole 506, the second sliding rod 6 is symmetrical with the first sliding rod 5 with respect to the sliding block 3, and the first sliding rod 5 and the second sliding rod 6 move synchronously and are always symmetrical with respect to the sliding block 3; the first retracting bar 9 comprises a cylindrical section 901, second threaded holes 904 are arranged at the upper end of the cylindrical section 901 at equal intervals, first protruding sections 902 are symmetrically arranged at the left side and the right side of the cylindrical section 901, second protruding sections 903 are arranged at the lower end of the cylindrical section 901, drag hooks 905 are arranged at the lower end of the second protruding sections 903 at equal intervals, the cylindrical section 901, the first protruding sections 902 and the second protruding sections 903 are matched with the connecting holes 506, a screw 11 penetrates through the first threaded hole 505 and is screwed into the second threaded hole 904 to fix the first retracting bar 9 and the second retracting bar 10, the screw 11 is screwed into different second threaded holes 904 to adjust the length of the first retracting bar 9 extending out of the second retracting bar 10, in order to adapt to the needs of different patients, second tractive pole 10 and first tractive pole 9 are all about sliding block 3 symmetry, and second tractive pole 10, first tractive pole 9 remove along with second slide bar 6, first slide bar 5 respectively, realize the tractive to the operation wound.

As shown in fig. 1-5, the first retracting bar 9 and the second retracting bar 10 are respectively inserted into the first sliding bar 5 and the second sliding bar 6 and fixed by screws 11, then the drag hook 905 on the first retracting bar 9 and the drag hook on the second retracting bar 10 are contacted with the surgical wound, the rotating handle 1 drives the push rod 2 to rotate in the threaded hole of the rectangular plate 12 to drive the slide block 3 to move leftwards, the movement of the slide block 3 drives the first connecting rod 7 and the second connecting rod 8 to drive the first sliding bar 5 and the second sliding bar 6 to move along the U-shaped bar 13 in opposite directions to gradually increase the distance between the drag hook 905 on the first retracting bar 9 and the drag hook on the second retracting bar 10 so as to adjust the retracting width to adapt to incisions with different sizes, and the reverse rotation of the handle 1 realizes that the distance between the drag hook 905 on the first retracting bar 9 and the drag hook on the second retracting bar 10 is smaller, the adjustment of the traction width is realized by rotating the handle 1 to adapt to incisions with different sizes, and the operation is convenient and fast.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A retractor for neurosurgery, characterized in that: the sliding block comprises a rectangular plate, a U-shaped rod is fixedly installed on the left side face of the rectangular plate, a first sliding rod and a second sliding rod are symmetrically and slidably installed on the U-shaped rod, the middle portion of the first sliding rod is rotatably connected with a first connecting rod through a pin, the middle portion of the second sliding rod is rotatably connected with a second connecting rod through a pin, the structural sizes of the first connecting rod and the second connecting rod are equal and are rotatably connected with a sliding block through a pin, the first connecting rod and the second connecting rod are symmetrically arranged on two sides of the sliding block, the first sliding rod and the second sliding rod are driven to slide in opposite directions or in opposite directions along the U-shaped rod by pushing the first connecting rod and the second connecting rod when the sliding block moves, the sliding block is rotatably connected with a push rod, the push rod is in threaded connection with a threaded hole in the rectangular plate, and the right end of the push rod is fixedly connected with a handle, the left side of the first sliding rod is in sliding connection with the first retraction rod and is fixed through a screw, and the left side of the second sliding rod is in sliding connection with the second retraction rod and is fixed through a screw.

2. The neurosurgical retractor according to claim 1, wherein: the push rod include with rectangular plate threaded connection's screw thread section, screw thread section one end with handle fixed connection, the other end and polished rod section fixed connection, polished rod section and toper section fixed connection, the polished rod section with the small circle hole on sliding block right side rotates and is connected, the toper section insert in the big circular hole on sliding block right side and with the sliding block rotates and is connected.

3. The neurosurgical retractor according to claim 1 or 2, wherein: the first sliding rod comprises a vertical section which is connected with the U-shaped rod in a sliding mode, the lower end of the vertical section is fixedly connected with the L-shaped section, the L-shaped section is fixedly connected with the connecting section, one end of the connecting section is provided with a through hole, the other end of the connecting section is provided with a connecting hole, the upper end of the connecting section is provided with a first threaded hole communicated with the connecting hole, and the second sliding rod is symmetrical to the first sliding rod.

4. The neurosurgical retractor of claim 3, wherein: the first retracting rod comprises a cylindrical section, second threaded holes are formed in the upper end of the cylindrical section at equal intervals, first protruding sections are symmetrically arranged on the left side and the right side of the cylindrical section, second protruding sections are arranged at the lower end of the cylindrical section, drag hooks are arranged on the protruding sections of the second at equal intervals, the cylindrical section is matched with the first protruding sections, and the second retracting rod is symmetrical to the first retracting rod about the sliding block.