CN215129367U

CN215129367U - Transmission structure guiding device of endoscope cutting anastomat

Info

Publication number: CN215129367U
Application number: CN202120747249.4U
Authority: CN
Inventors: 吕波; 叶晓达; 叶哲彬
Original assignee: Jiangsu Guanchuang Medical Technology Co ltd
Current assignee: Jiangsu Guanchuang Medical Technology Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-12-14
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to the technical field of medical equipment, specifically be a transmission structure guider of chamber mirror cutting anastomat, including fixed handle and movable handle, the articulated fixed handle of movable handle, the fixed handle front end is equipped with the promotion cover, the movable handle upper end is connected with and promotes the piece, it is connected with the rack bar to promote the piece transmission, the rack bar front end is connected with the promotion strip that the symmetry set up, every promotes a side position and is equipped with the limit groove, be equipped with adjacent first guide rail groove and second guide rail groove in the fixed handle, rack bar sliding connection is at first guide rail inslot, it is at second guide rail inslot to promote a sliding connection, be equipped with the inside lining slide rail in the second guide rail inslot, inside lining slide rail joint limit groove, be equipped with the thrust stopper in the fixed handle. The utility model discloses effectively strengthen the guide ability to transmission structure, improve the motion precision of cutting anastomat.

Description

Transmission structure guiding device of endoscope cutting anastomat

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to transmission structure guider of chamber mirror cutting anastomat.

Background

The endoscopic surgery is a newly developed minimally invasive method, wherein the cutting anastomat mainly performs excision, transverse cutting and anastomosis actions on tissues in the minimally invasive surgery, and the cutting anastomat is widely applied to the minimally invasive surgery because the cutting anastomat is convenient to operate, tight in suture and moderate in tightness and can effectively promote recovery of patients.

Among the prior art, medical personnel rely on mediating movable handle and fixed handle in order to realize the motion of cutting anastomat, have partial transmission clearance between the transmission structure of cutting anastomat and the fixed handle, and its guide capacity is not enough, and the joint strength of transmission structure is low moreover, easily leads to the unstability of transmission structure, reduces the motion precision of cutting anastomat, increases the operation risk.

SUMMERY OF THE UTILITY MODEL

For solving the problem that provides among the above-mentioned background art, the utility model provides a transmission structure guider of chamber mirror cutting anastomat effectively strengthens the guide ability to transmission structure, improves the motion precision of cutting anastomat.

The utility model provides a following technical scheme:

the guide device of the transmission structure of the endoscope cutting anastomat comprises a fixed handle and a movable handle, wherein the movable handle is hinged with the fixed handle, the front end of the fixed handle is provided with a pushing sleeve, the upper end of the movable handle is connected with a pushing block, the pushing block is connected with a rack rod in a transmission way, the front end of the rack bar is connected with symmetrically arranged pushing strips, the side surface of each pushing strip is provided with an edge groove, the output end of the pushing strip is connected in the pushing sleeve in a sliding way, a first guide rail groove and a second guide rail groove which are adjacent and horizontally arranged are arranged in the fixed handle, the rack bar is connected in the first guide rail groove in a sliding way, the pushing bar is connected in the second guide rail groove in a sliding way, the second guide rail groove is internally provided with a lining slide rail which is clamped with the side groove, and the fixed handle is internally provided with a thrust limiting block positioned at the upper end of the first guide rail groove.

Preferably, the first guide rail groove and the second guide rail groove are both of a semi-closed groove body structure.

Further, the fixed handle, the first guide rail groove and the second guide rail groove are integrally formed.

Preferably, the rack bar is provided with a rack bar front end and a rack bar rear end, and the rack bar front end is provided with a rack bar rear end and a rack bar rear end.

Preferably, a round rod is arranged in the fixed handle, and the thrust limiting block is rotatably connected to the middle section of the round rod.

Preferably, a contact concave cavity is formed in the upper end face of the rack rod, a protruding block is arranged on the lower end face of the thrust limiting block, and the protruding block is arranged in the contact concave cavity.

Preferably, the rack bar is provided with a rack part at the bottom, and the pushing block is provided with an engaging groove at the upper end face, and the engaging groove engages and drives the rack part.

The utility model has the advantages that:

(1): the rack bar is horizontally slid by the first guide rail groove, the pushing strip is horizontally slid by the second guide rail groove, the rack bar and the pushing strip are limited and guided, and the lining slide rail arranged in the second guide rail groove is clamped at the side groove of the pushing strip, so that the transmission gap of the transmission structure is further reduced, and the limiting and guiding capacity of the rack bar and the pushing strip is enhanced;

(2): the fixed handle, the first guide rail groove and the second guide rail groove are integrally formed, the overall structural strength is high, the transmission structure is convenient and fast to assemble, and the symmetrically arranged push bars are matched with the rack bar for transmission, so that the connection strength of the transmission structure is effectively improved;

(3): the rack bar is limited by the thrust limiting block, the stroke of the rack bar is limited, and the purpose of limiting and braking is achieved by the contact concave cavity of the upper end face of the rack bar, which is attached and contacted by the convex block of the lower end face of the thrust limiting block.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the fixing handle of the present invention;

FIG. 3 is a schematic view of the transmission structure of the present invention;

FIG. 4 is a schematic view of the push bar of the present invention;

fig. 5 is a schematic view of the rack bar of the present invention.

The labels in the figure are: 1-fixing a handle; 11-a first guide rail groove; 12-a second guide rail groove; 121-liner slide rail; 13-a thrust limit block; 131-a rotating rod; 2-a movable handle; 21-a pushing block; 211-an engagement groove; 3-a rack bar; 31-rack portion; 32-step portion; 33-contact cavity; 4-pushing the strip; 41-a connecting part; 42-side groove; 5-pushing the sleeve.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1-5, the present embodiment provides a transmission structure guiding device for an endoscopic cutting stapler, including a fixed handle 1 and a movable handle 2, the movable handle 2 is hinged to the fixed handle, a pushing sleeve 5 is disposed at the front end of the fixed handle 1, a pushing block 21 is connected to the upper end of the movable handle 2, the pushing block 21 is in transmission connection with a rack rod 3, the front end of the rack rod 3 is connected with pushing strips 4 symmetrically disposed, a side groove 42 is disposed at the side position of each pushing strip 4, the output end of the pushing strip 4 is slidably connected in the pushing sleeve 5, a first guide rail groove 11 and a second guide rail groove 12 are disposed in the fixed handle 1, the rack rod 3 is slidably connected in the first guide rail groove 11, the pushing strip 4 is slidably connected in the second guide rail groove 12, a lining slide rail 121 is disposed in the second guide rail groove 12, the lining slide rail 121 is connected to the side groove 42, and a thrust stop block 13 disposed at the upper end of the first guide rail groove 11 is disposed in the fixed handle 1.

In some embodiments, the first guide rail groove 11 and the second guide rail groove 12 are both semi-closed groove structures, and provide space for other parts for adjusting and displaying positions, the fixing handle 1, the first guide rail groove 11 and the second guide rail groove 12 are integrally formed, so that the overall structure is high in strength, and the transmission structure can be more conveniently assembled, the fixing handle 1 is symmetrically arranged two-side frames, and after the transmission structure is assembled in one of the two-side frames, the two-side frames are directly clamped to form the whole fixing handle 1.

In some embodiments, the side position symmetry of rack bar 3 front end is equipped with step 32, promote 4 rear ends of strip and be equipped with hollow structure's connecting portion 41, connecting portion 41 sets up in step 32 department, the promotion strip 4 cooperation rack bar 3 that the symmetry set up transmits, can effectively improve transmission structure's joint strength, the better laminating of step 32 promotes strip 4, promote rack bar 3 to accomplish the effect to promoting strip 4, hollow structure's connecting portion 41 is favorable to with the erection joint between rack bar 3, improve connecting portion 41's toughness, promote connection between them, play certain damping effect.

In some embodiments, a round rod 131 is disposed in the fixed handle 1, and the thrust stopper 13 is rotatably connected to the middle section of the round rod 131, so that when the rack bar 3 moves, the thrust stopper 13 deflects to adapt to the position of the rack bar 3.

In some embodiments, the upper end face of the rack bar 3 is provided with a contact cavity 33, the lower end face of the thrust limiting block 13 is provided with a convex block, the convex block is arranged in the contact cavity 33, the stroke of the rack bar 3 is limited by the thrust limiting block 13, and the convex block on the lower end face of the thrust limiting block 13 is attached to the contact cavity 33 contacting the upper end face of the rack bar 3, so that the purpose of limiting and braking is achieved.

In some embodiments, the rack bar 3 is provided with a rack portion 31 at the bottom, the pushing block 21 is provided with an engaging groove 211 at the upper end surface, the engaging groove 211 engages with the driving rack portion 31, and the engaging groove 211 engages with the helical teeth of the matching rack portion 31 in a linear direction to realize the feeding of the rack portion 31 so as to slide in the first guide rail groove 11.

The utility model discloses the theory of operation is as follows, through mediating fixed handle 1 and movable handle 2, the horizontal displacement of rack bar 3 is driven by the angular displacement motion of movable handle 2, it is concrete, the linear displacement of movable handle 2 effect drive promotion piece 21, meshing groove 211 feeds rack portion 31 along the rectilinear direction, meshing transmission rack bar 3 continuously slides, rack bar 3 drives the promotion strip 4 of its front end, 3 horizontal sliding of rack bar is in first guide rail groove 11, promote 4 horizontal sliding of strip in second guide rail groove 12, carry out spacing direction to rack bar 3 and promotion strip 4, inside lining slide rail 121 joint in second guide rail groove 12 is in the limit slot 42 department that promotes strip 4, reduce transmission structure's transmission clearance, strengthen the spacing guide ability to rack bar 3 and promotion strip 4, improve the motion accuracy of cutting anastomat.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. Drive structure guider of chamber mirror cutting anastomat, including fixed handle (1) and activity handle (2), activity handle (2) are articulated fixed handle, fixed handle (1) front end is equipped with promotion cover (5), its characterized in that: the upper end of the movable handle (2) is connected with a pushing block (21), the pushing block (21) is connected with a rack rod (3) in a transmission way, the front end of the rack bar (3) is connected with symmetrically arranged pushing strips (4), a side groove (42) is arranged at the side of each pushing strip (4), the output end of the pushing strip (4) is connected in the pushing sleeve (5) in a sliding way, a first guide rail groove (11) and a second guide rail groove (12) which are adjacent and horizontally arranged are arranged in the fixed handle (1), the rack bar (3) is connected in the first guide rail groove (11) in a sliding way, the pushing strip (4) is connected in the second guide rail groove (12) in a sliding way, a lining slide rail (121) is arranged in the second guide rail groove (12), the lining slide rail (121) is clamped with the side groove (42), and a thrust limiting block (13) is arranged in the fixed handle (1) and is positioned at the upper end of the first guide rail groove (11).

2. The driving structure guide device of the endoscopic cutting stapler according to claim 1, wherein: the first guide rail groove (11) and the second guide rail groove (12) are both of a semi-closed groove body structure.

3. The driving structure guide device of the endoscopic cutting stapler according to claim 2, wherein: the fixed handle (1), the first guide rail groove (11) and the second guide rail groove (12) are integrally formed.

4. The driving structure guide device of the endoscopic cutting stapler according to claim 1, wherein: the side position symmetry of rack rod (3) front end is equipped with step (32), it is equipped with hollow structure's connecting portion (41) to promote strip (4) rear end, connecting portion (41) set up step (32) department.

5. The driving structure guide device of the endoscopic cutting stapler according to claim 1, wherein: a round rod (131) is arranged in the fixed handle (1), and the thrust limiting block (13) is rotatably connected to the middle section of the round rod (131).

6. The driving structure guide device of the endoscopic cutting stapler according to claim 1, wherein: the rack bar is characterized in that a contact cavity (33) is formed in the upper end face of the rack bar (3), a protruding block is arranged on the lower end face of the thrust limiting block (13), and the protruding block is arranged in the contact cavity (33).

7. The driving structure guide device of the endoscopic cutting stapler according to claim 1, wherein: the rack bar (3) bottom is equipped with rack portion (31), it is equipped with meshing groove (211) to promote piece (21) upper end face, meshing groove (211) meshing transmission rack portion (31).