CN213430322U - Ultra-180-degree rotary installation structure for suture needle of laparoscopic suture instrument - Google Patents
Ultra-180-degree rotary installation structure for suture needle of laparoscopic suture instrument Download PDFInfo
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- CN213430322U CN213430322U CN202021331063.2U CN202021331063U CN213430322U CN 213430322 U CN213430322 U CN 213430322U CN 202021331063 U CN202021331063 U CN 202021331063U CN 213430322 U CN213430322 U CN 213430322U
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Abstract
The utility model relates to a peritoneoscope stitching instrument sewing needle surpasses 180 rotatory mounting structure establishes at the yaw front end of stitching instrument, and the yaw has well apron, is equipped with on the well apron to be controlled the drive by stitching instrument spanner and makes wobbling push pin subassembly, and well apron front end has the arc wall of placing the sewing needle, the push pin subassembly have the pendulum rod, the arc angle of arc wall be 181 ~ 300, the needle groove has been seted up respectively at the sewing needle both ends, the pendulum rod front end is equipped with the card and goes into ejector pin in the needle groove, the rotatory half week of pendulum rod promotion sewing needle position of sewing needle tip surpasss the perpendicular center wire outside of arc wall when targetting in place. The utility model discloses a pendulum rod promotes sewing needle rotation angle and surpasss 180 and outstanding arc wall vertical center line, has ensured that the ejector pin accurately aims at needle groove position, has prevented effectively that the pendulum rod from producing positional deviation and arousing the phenomenon of skidding that the sewing needle rotation appears when reseing between ejector pin and the needle groove in the past, has improved the sewing quality.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a peritoneoscope stitching instrument sewing needle surpasses 180 rotatory mounting structure.
Background
In the laparoscopic surgery, the handle of the stitching instrument pushes the stitching needle to rotate, so that the human tissues are punctured and the tissues are stitched together. The existing suture needle rotates for the first half of 180 degrees at one time under the driving of the needle pushing component, then the needle pushing component returns to the initial position, and then the suture needle is pushed to rotate for the second half of 180 degrees, and the processes are repeated to finish the suture. However, in the existing installation structure of the suture needle, because the needle groove is positioned at the two ends of the needle point and the needle tail, when the ejector rod at the end part of the needle pushing assembly is reset and clamped into the needle groove, position deviation can occur, the ejector rod can not be effectively clamped into the needle groove, and the suture needle rotates and slips.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, the utility model provides a sewing needle of a laparoscope stitching instrument with an over 180-degree rotary installation structure, which ensures that the ejector rod can be accurately clamped into the needle groove after being reset.
The utility model provides a technical scheme that its technical problem adopted is: a rotary mounting structure for a laparoscope stitching instrument suture needle of more than 180 degrees is arranged at the front end of a swinging head of the stitching instrument, the swinging head is provided with a middle cover plate, a needle pushing assembly which is driven by a stitching instrument wrench to swing is arranged on the middle cover plate, the front end of the middle cover plate is provided with an arc-shaped groove for placing the suture needle, the needle pushing assembly is provided with a swing rod, the arc angle of the arc-shaped groove is 181-300 degrees, needle grooves are respectively formed in two end parts of the suture needle, the front end of the swing rod is provided with a push rod which is clamped into the needle grooves, and the position of the needle groove at the end part of the suture needle exceeds the outer side of the vertical center line of the arc-.
The utility model has the advantages that: the utility model discloses a pendulum rod promotes sewing needle rotation angle and surpasses 180 and outstanding arc wall vertical center line, has consequently ensured that the ejector pin can accurately aim at needle groove position to produce positional deviation between ejector pin and the needle groove when having prevented effectively that the pendulum rod from reseing in the past, the phenomenon of skidding appears when having avoided the sewing needle rotation, improved the sewing quality.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic bottom view of the structure of fig. 1.
FIG. 3 is a schematic view of the state of the swing link engaged with the suture needle.
In the figure: 1. the sewing machine comprises a swing head, a middle cover plate, a sewing needle, an arc-shaped groove, a swing rod, a needle groove, a push rod and an upper cover plate, wherein the swing head is 2, the middle cover plate is 3, the sewing needle is 4, the arc-shaped groove is 5, the swing rod is 6, the push rod is 7, and the upper.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The mounting structure for the suture needle of the laparoscopic suture instrument rotating more than 180 degrees as shown in fig. 1 to 3 is arranged at the front end of a swinging head 1 of the suture instrument, the swinging head 1 is provided with a middle cover plate 2, and an upper cover plate 8 is matched and mounted on a middle cover plate 7.
Well apron 2 on be equipped with and make wobbling push pin subassembly by stitching instrument spanner control drive, the push pin subassembly include pendulum rod 5, 2 front ends of well apron have the arc wall 4 of placing sewing needle 3, the spacing sewing needle 3 of upper cover plate 8 front ends cooperation arc wall 4, needle groove 6 has been seted up respectively to the pinpoint of sewing needle 3 and threading end, 5 front end tip of pendulum rod are fixed with can with 6 joint complex ejector pins 7 of needle groove.
The arc angle formed by the connecting lines of the two ends of the arc-shaped groove 4 is 200 degrees, and the arc angle formed by the connecting lines of the two ends of the sewing needle 3 is 245 degrees.
The swing of the swing rod 5 is controlled by a wrench on a handle of the stitching instrument, the wrench pulls the connecting rod to retreat, the connecting rod drives a rack to move backwards, the backward movement of the rack enables a pair of gears to rotate through meshing transmission, and then two turntables which are coaxially arranged with the gears are synchronously driven to rotate, the swing rod 5 is eccentrically arranged on the turntables, and the rotation of the turntables realizes the reciprocating swing of the swing rod 5.
When the swing rod 5 pushes the suture needle 3 to rotate in place in the first half of the rotation, the needle tip of the suture needle 3 faces the inner side of the swing head 5 and protrudes out of the inner side of the vertical central line of the arc-shaped groove 4, at the moment, the rotation angle of the suture needle 3 can exceed 180 degrees, the position of the needle groove 6 at the needle tip of the suture needle 3 correspondingly protrudes out of the inner side of the vertical central line of the arc-shaped groove 4, when the swing rod 5 swings back to the initial position, the ejector rod 7 at the head of the swing rod 5 is clamped into the needle groove 6 at the thread end of the suture needle 3, when the wrench is pulled again, the swing rod 5 rotates in the second half of the rotation of the suture needle 3, and the operation is circulated in such a way, and the suture operation of the suture needle 3 after the human tissue operation is realized.
Because the swing link 5 pushes the sewing needle 3 to rotate by an angle exceeding 180 degrees and protrude out of the vertical central line of the arc-shaped groove 4, the ejector rod 7 can be ensured to be accurately aligned with the position of the needle groove 6, thereby effectively preventing the position deviation between the ejector rod 7 and the needle groove 6 when the swing link 5 is reset in the past, avoiding the slipping phenomenon when the sewing needle 3 rotates and improving the sewing quality.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (1)
1. The utility model provides a peritoneoscope stitching instrument sewing needle surpasses 180 rotatory mounting structure, sets up at the yaw (1) front end of stitching instrument, yaw (1) have well apron (2), be equipped with on well apron (2) and make wobbling push pin subassembly by stitching instrument spanner control drive, well apron (2) front end has arc wall (4) of placing sewing needle (3), push pin subassembly pendulum rod (5), characterized by: the arc angle of the arc-shaped groove (4) is 181-300 degrees, the two end parts of the sewing needle (3) are respectively provided with a needle groove (6), the front end of the swing rod (5) is provided with an ejector rod (7) clamped in the needle groove (6), and the position of the needle groove (6) at the end part of the sewing needle (3) exceeds the outer side of the vertical central line of the arc-shaped groove (4) when the swing rod (5) pushes the sewing needle (3) to rotate for half a circle in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021331063.2U CN213430322U (en) | 2020-07-08 | 2020-07-08 | Ultra-180-degree rotary installation structure for suture needle of laparoscopic suture instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021331063.2U CN213430322U (en) | 2020-07-08 | 2020-07-08 | Ultra-180-degree rotary installation structure for suture needle of laparoscopic suture instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213430322U true CN213430322U (en) | 2021-06-15 |
Family
ID=76372107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021331063.2U Active CN213430322U (en) | 2020-07-08 | 2020-07-08 | Ultra-180-degree rotary installation structure for suture needle of laparoscopic suture instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213430322U (en) |
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2020
- 2020-07-08 CN CN202021331063.2U patent/CN213430322U/en active Active
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