CN216394186U

CN216394186U - Novel posterior cruciate ligament operating forceps

Info

Publication number: CN216394186U
Application number: CN202122646045.4U
Authority: CN
Inventors: 泮宸帅; 马宁; 宋宇轩; 王勇
Original assignee: Taizhou Central Hospital Taizhou University Hospital
Current assignee: Taizhou Central Hospital Taizhou University Hospital
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-29
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a novel posterior cruciate ligament surgical clamp which comprises a mounting shell, a clamping device and a clamping device, wherein the mounting shell comprises a movable grip hinged to one side of the lower end of the mounting shell, and a first sliding rail and a second sliding rail below the first sliding rail are arranged in the mounting shell; the clamp pipe is arranged at one horizontal end of the mounting shell, a first channel is arranged at the upper end inside the clamp pipe and comprises a high-strength metal push rod penetrating through the second channel and the inner side of the second sliding rail, the rotating handle can be conveniently held and rotated by fingers, the shaft rod can drive the bevel gear to synchronously rotate and push the bevel rack and the sliding block meshed with the bevel gear to move back and forth when rotating, the sliding block can push the high-strength metal push rod, the U-shaped push fork rod and the arc-shaped adjusting plate to move back and forth when moving, and the bending angle of the high-strength memory steel wire attached to the arc-shaped adjusting plate can be changed when the arc-shaped adjusting plate moves back and forth, so that the high-strength memory steel wire can be bent in the head area according to actual needs.

Description

Novel posterior cruciate ligament operating forceps

Technical Field

The utility model relates to the technical field of ligament surgical forceps, in particular to novel posterior cruciate ligament surgical forceps.

Background

When a patient is subjected to posterior cruciate ligament surgery, the general steps comprise preoperative examination, tendon taking, surgical approach, tibial end positioning and tunnel building, tendon traction and fixation and the like; however, when the guide wire is inserted into the tunnel and penetrates the entire tunnel during the actual operation, the diameter of the wire loop formed by the guide wire inserted into the femoral tunnel is very small due to the too narrow tunnel, and it is very inconvenient to clamp the wire loop when using the conventional forceps, particularly because the head of the forceps is difficult to adjust the angle according to the specific orientation of the wire loop and cannot be bent according to the orientation of the wire loop, and thus the head of the forceps is difficult to hook the wire loop.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel posterior cruciate ligament surgical clamp, which aims to solve the problem that the traditional surgical clamp is very inconvenient to clamp a wire loop in the prior art, and the specific reason is that the head of the surgical clamp is difficult to adjust the angle according to the specific direction of the wire loop and cannot be bent according to the direction of the wire loop, so that the head of the surgical clamp is difficult to hook the wire loop.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel posterior cruciate ligament surgical clamp, comprising:

the mounting shell comprises a movable handle hinged to one side of the lower end of the mounting shell, and a first sliding rail and a second sliding rail below the first sliding rail are arranged in the mounting shell;

the clamp pipe is arranged at one horizontal end part of the mounting shell, a first channel is arranged at the upper end in the clamp pipe, and a second channel is arranged below the first channel in parallel;

the high-strength memory steel wire penetrates through the first channel and the inner side of the first sliding rail, and a hook ring is arranged at the tail end of the high-strength memory steel wire;

warp adjustment mechanism, including wearing to locate the second passageway with the inboard metal push rod that excels in of second slide rail, a tip of the metal push rod that excels in is provided with symmetrical structure's U type push fork pole, a tip of U type push fork pole articulates there is the arc regulating plate, another tip of the metal push rod that excels in be provided with slide in the inboard slider of second slide rail, bottom one side of slider is provided with the toper rack, the meshing of lower extreme one side of toper rack has conical gear.

Preferably, a shaft rod perpendicular to the conical gear is further fixed at the center of the bottom of the conical gear, and a handle is fixed at one end of the shaft rod penetrating through the outer wall of the mounting shell.

Preferably, the high-strength metal push rod forms a transmission structure with the handle through a sliding block, a conical rack, a conical gear and a shaft rod, and the upper end of the arc-shaped adjusting plate is further provided with a hinge shaft hinged with the forceps tube.

Preferably, a side wall of one end portion of the high-strength memory steel wire is attached to a side wall of the arc-shaped adjusting plate, and the high-strength memory steel wire is located at one end portion of the shackle and penetrates through the inner side of the U-shaped push fork rod.

Preferably, the first channel is located one end of the arc-shaped adjusting plate is also reserved with a telescopic cavity, and the first channel and the second channel are communicated with the first sliding rail and the second sliding rail respectively and are located in the same linear direction.

Preferably, the lower end of the root part of the mounting shell is also fixedly provided with a fixed grip, and the middle parts of the fixed grip and the movable grip are also connected with a return spring.

Preferably, one side of the lower end of the mounting shell is further provided with a hinge frame hinged with the movable handle, and one end of the movable handle, which is positioned inside the mounting shell, is hinged with the high-strength memory steel wire.

Compared with the prior art, the utility model has the beneficial effects that: the rotating handle can facilitate fingers to hold the shaft rod to rotate, the shaft rod can drive the bevel gear to synchronously rotate and push the conical rack and the sliding block which are meshed with the bevel gear to move back and forth when rotating, the sliding block can push the high-strength metal push rod, the U-shaped fork rod and the lower end of the arc-shaped adjusting plate to move back and forth when moving, and the arc-shaped adjusting plate can change the bending angle of the high-strength memory steel wire attached to the arc-shaped adjusting plate while moving back and forth, so that the high-strength memory steel wire can be bent to adjust the head area of the high-strength memory steel wire according to actual needs, and a hook ring can hook the wire loop more accurately.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the mounting housing of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1;

FIG. 4 is a schematic view of a cross section of a slider and a structure of an engaging member according to the present invention;

FIG. 5 is a schematic view of the U-shaped push rod of the present invention.

In the figure: 100. mounting a shell; 110. fixing the grip; 120. a movable grip; 130. a hinged frame; 140. a first slide rail; 150. a second slide rail; 160. a return spring; 200. clamping a pipe; 210. a first channel; 2101. a telescoping chamber; 220. a second channel; 300. high strength memory steel wire; 310. a shackle; 400. a deformation adjustment mechanism; 410. a high-strength metal push rod; 4101. a U-shaped push fork rod; 420. an arc-shaped adjusting plate; 430. a hinge shaft; 440. a slider; 4401. a tapered rack; 450. a bevel gear; 460. a shaft lever; 470. rotating the handle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a novel posterior cruciate ligament surgical clamp, which can be used for bending and adjusting the head of the surgical clamp according to the specific direction of a guide wire ring, and can also be used for adjusting the head bending angle of the surgical clamp according to actual requirements.

Fig. 1 to 5 are schematic diagrams illustrating the overall structure of the novel posterior cruciate ligament surgical forceps according to the present invention, please refer to fig. 1 to 5, the main body of the novel posterior cruciate ligament surgical forceps according to the present embodiment includes a mounting shell 100, a forceps tube 200, a high strength memory wire 300, and a deformation adjusting mechanism 400.

The mounting case 100 comprises a movable handle 120 hinged to one side of the lower end of the mounting case 100, a first slide rail 140 and a second slide rail 150 below the first slide rail 140 are arranged inside the mounting case 100, a fixed handle 110 is further fixed to the lower end of the root portion of the mounting case 100, a return spring 160 is further connected to the middle portion of the fixed handle 110 and the movable handle 120, a hinge frame 130 hinged to the movable handle 120 is further arranged on one side of the lower end of the mounting case 100, one end of the movable handle 120 located inside the mounting case 100 is hinged to the high-strength memory steel wire 300, when an operator grips and tightens the movable handle 120, the upper end of the movable handle 120 is driven to advance towards one end of the high-strength memory steel wire 300 under the action of the hinge frame 130, one end of the high-strength memory steel wire 300 located on the hook ring 310 extends outwards, the tightening range is synchronous with the extension range of the hook ring 310, and when the operator loosens the movable handle 120, the return spring 160 pushes the movable handle 120 reversely under the fixed handle 110 to return the movable handle 120 And (4) restoring the position, so that the high-strength memory steel wire 300 and the shackle 310 automatically stretch and retract.

The clamp tube 200 is arranged at one horizontal end of the mounting shell 100, a first channel 210 is arranged at the upper end inside the clamp tube 200, a second channel 220 is arranged below the first channel 210 in parallel, a telescopic cavity 2101 is reserved at one end of the first channel 210, which is positioned at the arc-shaped adjusting plate 420, the first channel 210 and the second channel 220 are respectively communicated with the first slide rail 140 and the second slide rail 150 and positioned in the same straight line direction, the first channel 210 and the second channel 220 in the clamp tube 200 mainly play a role in limiting and stabilizing the high-strength memory steel wire 300 and the high-strength metal push rod 410, so that the high-strength memory steel wire 300 and the high-strength metal push rod 410 can move back and forth along a straight line, the telescopic cavity 2101 can provide a regulation space for the arc-shaped regulation plate 420 when the arc-shaped regulation plate 420 swings back and forth, and the first slide rail 140 and the second slide rail 150 mainly play a role in limiting and stabilizing the sections of the high-strength memory steel wire 300 and the high-strength metal push rod 410 inside the installation shell 100.

The memory steel wire 300 that excels in, it wears to locate first passageway 210 and the inboard of first slide rail 140, the end of the memory steel wire 300 that excels in is provided with shackle 310, a tip lateral wall that excels in memory steel wire 300 and a lateral wall of arc regulating plate 420 laminate each other, excel in memory steel wire 300 that excels in is located a tip of shackle 310 and runs through the inboard of U type push fork pole 4101 simultaneously, excel in memory steel wire 300 that excels in and has the elasticity that excels in can stretch out and retract the back reconversion at its tip that is located shackle 310 to carry out angle modulation to shackle 310 through its flexible mode.

The deformation adjusting mechanism 400 includes a high-strength metal push rod 410 passing through the second channel 220 and the inner side of the second slide rail 150, a U-shaped push rod 4101 with a symmetrical structure is disposed at one end of the high-strength metal push rod 410, an arc adjusting plate 420 is hinged at one end of the U-shaped push rod 4101, a slider 440 sliding inside the second slide rail 150 is disposed at the other end of the high-strength metal push rod 410, a tapered rack 4401 is disposed at one side of the bottom of the slider 440, a tapered gear 450 is engaged at one side of the lower end of the tapered rack 4401, a shaft 460 perpendicular to the tapered gear 450 is further fixed at the center of the bottom of the tapered gear 450, a rotating handle 470 is fixed at one end of the shaft 460 penetrating through the outer wall of the housing 100, the high-strength metal push rod 410 forms a transmission structure with the rotating handle 470 through the slider 440, the tapered rack 4401, the tapered gear 450 and the shaft 460, a hinge 430 hinged with the clamp tube 200 is further disposed at the upper end of the arc adjusting plate 420, the handle 470 facilitates the finger to hold the shaft 460 for rotation, the shaft 460 can drive the bevel gear 450 to rotate synchronously and push the bevel rack 4401 engaged with the bevel gear 450 and the slider 440 to move back and forth when rotating, the slider 440 can push the high-strength metal push rod 410, the U-shaped push rod 4101 and the lower end of the arc-shaped adjusting plate 420 to move back and forth when sliding, the arc-shaped adjusting plate 420 can change the bending angle of the high-strength memory steel wire 300 attached to the arc-shaped adjusting plate 420 while moving back and forth, so that the head area of the high-strength memory steel wire 300 can be bent according to actual needs, and the hook ring 310 can hook the wire loop more accurately.

In summary, in the novel posterior cruciate ligament surgical forceps of the present embodiment, the head of the forceps tube 200 is inserted into the femoral tunnel, and when the hook ring 310 needs to hook the wire loop in the tunnel, the specific steps are that the operator grips and tightens the movable handle 120, the upper end of the movable handle 120 is moved forward to one end of the high strength memory steel wire 300 under the action of the hinge frame 130, and the high strength memory steel wire 300 is extended outward at one end of the hook ring 310, the tightening range is synchronous with the extension range of the hook ring 310, when the angle between the high strength memory steel wire 300 and the hook ring 310 needs to be adjusted, the rotating handle 470 can facilitate the fingers to grip and rotate the shaft lever 460, the shaft lever 460 can drive the bevel gear 450 to rotate synchronously and push the bevel rack 4401 engaged with the bevel gear 450 and the slider 440 to move back and forth, and back the lower ends of the high strength metal push rod 410, the U-shaped push rod 4101 and the arc-shaped adjusting plate 420 can be pushed by the slider 440 to move back and forth when sliding The displacement, arc regulating plate 420 can change the bending angle of the memory steel wire 300 of excelling in of laminating with it when moving in front and back to make the memory steel wire 300 of excelling in can carry out the camber to its head region according to actual need and adjust, so that the more accurate wire loop that catches on of shackle 310.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the disclosed embodiments of the utility model may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A novel posterior cruciate ligament surgical clamp is characterized by comprising:

the mounting shell (100) comprises a movable handle (120) hinged to one side of the lower end of the mounting shell (100), and a first sliding rail (140) and a second sliding rail (150) below the first sliding rail (140) are arranged inside the mounting shell (100);

the clamp pipe (200) is arranged at one horizontal end part of the mounting shell (100), a first channel (210) is arranged at the upper end of the interior of the clamp pipe (200), and a second channel (220) is arranged below the first channel (210) in parallel;

the high-strength memory steel wire (300) penetrates through the first channel (210) and the inner side of the first sliding rail (140), and a hook ring (310) is arranged at the tail end of the high-strength memory steel wire (300);

warp adjustment mechanism (400), including wearing to locate second passageway (220) with the inboard metal push rod that excels in (410) of second slide rail (150), an end of the metal push rod that excels in (410) is provided with symmetrical structure's U type push fork pole (4101), an end of U type push fork pole (4101) articulates there is arc regulating plate (420), another tip of the metal push rod that excels in (410) be provided with slide in slider (440) of second slide rail (150) inboard, bottom one side of slider (440) is provided with toper rack (4401), the meshing of lower extreme one side of toper rack (4401) has conical gear (450).

2. The novel posterior cruciate ligament surgical clamp according to claim 1, wherein: a shaft rod (460) perpendicular to the conical gear (450) is further fixed at the center of the bottom of the conical gear (450), and a handle (470) is fixed at one end of the shaft rod (460) penetrating through the outer wall of the shell of the mounting shell (100).

3. The novel posterior cruciate ligament surgical clamp according to claim 2, wherein: the high-strength metal push rod (410) and the rotating handle (470) form a transmission structure through a sliding block (440), a conical rack (4401), a conical gear (450) and a shaft lever (460), and the upper end of the arc-shaped adjusting plate (420) is further provided with a hinge shaft (430) hinged with the forceps tube (200).

4. The novel posterior cruciate ligament surgical clamp according to claim 1, wherein: the side wall of one end of the high-strength memory steel wire (300) is attached to one side wall of the arc-shaped adjusting plate (420), and the high-strength memory steel wire (300) is located at one end of the shackle (310) and penetrates through the inner side of the U-shaped push fork rod (4101).

5. The novel posterior cruciate ligament surgical clamp according to claim 1, wherein: the first channel (210) is located at one end of the arc-shaped adjusting plate (420), a telescopic cavity (2101) is reserved in the end, and the first channel (210) and the second channel (220) are communicated with the first sliding rail (140) and the second sliding rail (150) respectively and located in the same linear direction.

6. The novel posterior cruciate ligament surgical clamp according to claim 1, wherein: the lower end of the root part of the mounting shell (100) is also fixed with a fixed grip (110), and the middle parts of the fixed grip (110) and the movable grip (120) are also connected with a return spring (160).

7. The novel posterior cruciate ligament surgical clamp according to claim 1, wherein: and a hinge frame (130) hinged with the movable handle (120) is further arranged on one side of the lower end of the mounting shell (100), and one end of the movable handle (120) located inside the mounting shell (100) is hinged with the high-strength memory steel wire (300).