CN214909156U

CN214909156U - Excavator type distractor for cochlear implant surgery

Info

Publication number: CN214909156U
Application number: CN202120204559.1U
Authority: CN
Inventors: 唐红燕; 黄治玲; 李伟; 冯爱华; 李小君
Original assignee: SICHUAN 81 REHABILITATION CENTER (SICHUAN PROVINCIAL REHABILITATION HOSPITAL)
Current assignee: SICHUAN 81 REHABILITATION CENTER (SICHUAN PROVINCIAL REHABILITATION HOSPITAL)
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-30
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses an excavator type spreader for cochlear implant surgery, which comprises a hook plate, a support, a spreader hook, a short connecting rod, a first pin shaft, a second pin shaft, a third pin shaft, a long connecting rod, a connecting plate, a long screw rod, a round nut and a baffle seat; the four supports and the two baffle seats are welded on the hook plate to form a base of the spreader. The hook plate, the support hook, the short connecting rod and the long connecting rod form a four-bar mechanism through four pin shafts, and the shape of the four-bar mechanism is similar to that of an excavator. The long screw rod penetrates through the limiting holes of the two baffle plate seats and is in threaded connection with the round nut, the round nut is positioned between the two baffle plate seats, the front end of the long screw rod is welded with the connecting plate into a whole, and the connecting plate is connected with the four-bar mechanism through a pin shaft. The utility model discloses an excavator formula struts ware for artifical cochlear operation adjusts round nut during the use, and the long screw pushes away forward or stimulates the four-bar linkage action backward, and the state of hook is propped in corresponding change, then can satisfy the requirement that different patient's soft tissue thickness differs.

Description

Excavator type distractor for cochlear implant surgery

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an excavator type spreader for cochlear implant surgery.

Background

In otology microsurgery, the main surgeon's field of vision is required to be as wide as possible, otherwise the operation effect will be seriously influenced, the operation time is prolonged, and then the soft tissue at the incision needs to be propped open to enlarge the operation field of vision, and in order to clearly expose the operation field of vision, a special soft tissue propping instrument is needed, and an otology spreader is generally used to expose the operation cavity. Through the retrieval discovery, the utility model discloses a strut ware for otology mastoid operation, it is including the body that transversely sets up, the body includes two arms that strut that are bilateral symmetry setting, two strut the articulated body that forms the scissors form of arm through the round pin axle, the front portion of two arms that strut respectively toward left and right sides struts and forms the U-shaped mouth, the front end of every arm that struts is connected with two separation blades, the separation blade is vertical setting in the U-shaped mouth, the unsettled setting in below of the arm that struts of lower part of two separation blades, contained angle between two separation blades is the obtuse angle, the contained angle of two separation blades on two arms that strut is relative setting, the left arm that struts of body is connected with the arc sawtooth, the arm bottom side that struts on body right side is connected with the hasp, be connected through the tooth buckle between hasp and the arc sawtooth.

If the otology spreader is used in the artificial cochlea implantation, but the otology spreader is fixed on two sides with teeth, the spreader needs to be spread, combined and taken out for a plurality of times in the operation, so that the risk of damaging an implant electrode exists, and the operation is complicated, so the otology spreader is not suitable for the artificial cochlea operation.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned insufficiency, the utility model provides an excavator formula struts ware for artifical cochlear surgery here.

The utility model discloses a realize like this, construct an excavator formula struts ware for artifical cochlear operation, its characterized in that: the device comprises a hook plate, a first pin shaft, a support, a second pin shaft, a support hook, a third pin shaft, a short connecting rod, a long connecting rod, a connecting plate, a long screw rod, a round nut and a baffle plate seat; the support and the baffle seat are welded on the hook plate to form a base body of the spreader; the hook plate, the support hook, the short connecting rod and the long connecting rod form a four-bar mechanism through a first pin shaft, a second pin shaft and a third pin shaft; the long screw penetrates through the limiting holes of the two baffle plates and is in threaded connection with the round nut; the round nut is positioned between the two baffle seats, the front end of the long screw rod is welded with the connecting plate into a whole, and the connecting plate is connected with the four-bar mechanism through a pin shaft.

According to the utility model relates to an excavator formula struts ware for artificial cochlea operation, its characterized in that: the hook plate is a strip-shaped stainless steel sheet.

The utility model has the advantages of as follows: the utility model discloses an excavator type spreader for cochlear implant surgery; the utility model has reasonable structure and simple manufacture, and can provide convenience for cochlear implant operation. The novel excavator type distractor is used by adjusting the round nut, and the long screw pushes forwards or pulls backwards the four short connecting rods to act, so that the state of the distraction hook is correspondingly changed, and the requirements of different soft tissue thicknesses of different patients can be met. In the cochlear implant operation, two novel distractors can be used, the two distractors are separated from each other by a certain distance, the support hook hooks the soft tissue at the incision of the back of the ear of a patient, the hook plate is pulled towards the face of the patient, and the tail part of the hook plate is fixed on an operating table by using the stopping forceps or the rope so as to prevent the distractors from loosening.

Drawings

Fig. 1 is a schematic view of the overall structure of the excavator type distractor of the present invention;

fig. 2 is a schematic top view of the overall structure of the excavator type distractor of the present invention;

fig. 3 is a schematic view of the hook plate, the support and the baffle seat of the excavator type distractor of the present invention.

Wherein: the device comprises a hook plate 1, a first pin shaft 2, a support 3, a second pin shaft 4, a support hook 5, a third pin shaft 6, a short connecting rod 7, a long connecting rod 8, a connecting plate 9, a long screw rod 10, a round nut 11 and a baffle seat 12.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention will be clearly and completely described.

The utility model provides an excavator type spreader for cochlear implant surgery through improvement, as shown in fig. 1-3, which can be implemented as follows; the novel support comprises a hook plate 1, a first pin shaft 2, a support 3, a second pin shaft 4, a support hook 5, a third pin shaft 6, a short connecting rod 7, a long connecting rod 8, a connecting plate 9, a long screw rod 10, a round nut 11 and a baffle seat 12. The hook plate 1 is a long-strip-shaped stainless steel sheet, the support 3 is welded at the front end of the hook plate 1, and the baffle seat 12 is welded at the middle position of the hook plate 1 to form a base body of the spreader. Hook plate 1, prop hook 5, short connecting rod 7, long connecting rod 8 and constitute a four-bar linkage through the round pin axle, specifically are: the lower end of the support hook 5 is movably connected with the support 3 through a second pin shaft 4, the upper end of the support hook 5 is movably connected with the short connecting rod 7 through a third pin shaft 6, the upper end of the long connecting rod 8 is movably connected with the short connecting rod 7 through a first pin shaft 2, and the lower end of the long connecting rod 8 is movably connected with the support 3 through a first pin shaft 2. The front end of the long screw 10 is welded with the connecting plate 9 into a whole, and the connecting plate 9 is connected with the short connecting rod 7 and the long connecting rod 8 through the pin shaft 2. The long screw 10 passes through the limiting holes of the two baffle plates 12 and is in threaded connection with the round nut 11, and the round nut 11 is positioned between the two baffle plates 12.

When the excavator type spreader for the cochlear implant operation is implemented, the round nut is adjusted, the long screw rod pushes forwards or pulls backwards the four-bar linkage mechanism to move, and the state of the spreading hook is correspondingly changed.

The utility model discloses an excavator type spreader for cochlear implant surgery; the utility model has reasonable structure and simple manufacture, and can provide convenience for cochlear implant operation.

The novel excavator type spreader is used by adjusting the round nut, and the long screw pushes forwards or pulls the four-bar linkage backwards to act, so that the state of the spreading hook is correspondingly changed, and the requirements of different soft tissue thicknesses of different patients can be met. In the cochlear implant operation, two novel distractors can be used, the two distractors are separated from each other by a certain distance, the support hook hooks the soft tissue at the incision of the back of the ear of a patient, the hook plate is pulled towards the face of the patient, and the tail part of the hook plate is fixed on an operating coat by using the stop forceps or the rope so as to prevent the distractors from loosening.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An excavator formula struts ware for artifical cochlear surgery which characterized in that: the device comprises a hook plate (1), a first pin shaft (2), a support (3), a second pin shaft (4), a support hook (5), a third pin shaft (6), a short connecting rod (7), a long connecting rod (8), a connecting plate (9), a long screw (10), a round nut (11) and a baffle seat (12); the support (3) and the baffle seat (12) are welded on the hook plate (1) to form a matrix of the spreader; the four-bar linkage mechanism is composed of a hook plate (1), a support hook (5), a short connecting bar (7), a long connecting bar (8), a first pin shaft (2), two second pin shafts (4) and a third pin shaft (6); the long screw (10) passes through the limiting holes of the two baffle plates (12) and is in threaded connection with the round nut (11); the round nut (11) is positioned between the two baffle seats (12), the front end of the long screw (10) is welded with the connecting plate (9) into a whole, and the connecting plate (9) is connected with the four-bar mechanism through the pin shaft I (2).

2. The excavator type distractor for cochlear implant surgery according to claim 1, wherein: the hook plate (1) is a strip-shaped stainless steel sheet.