CN218636288U

CN218636288U - Operating table accessory fixer

Info

Publication number: CN218636288U
Application number: CN202221802890.4U
Authority: CN
Inventors: 杨铭伟; 李宗泽; 杨其华; 李超; 周文; 刘宇亭; 杨彬
Original assignee: Likang Huayao Biotechnology Shanghai Co ltd
Current assignee: Likang Huayao Biotechnology Shanghai Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2023-03-17
Anticipated expiration: 2032-07-13

Abstract

The utility model discloses an operating table accessory fixer, which relates to the technical field of surgical instruments. Including fastening slider, interior fixed cover passes through the first screw of threaded connection, fastening slider attach fitting is fixed revolves the handle, the fixed second screw of passing through threaded connection that revolves of annex, the interior fixed cover inside callipers is equipped with fastening slider, the fixed handle that revolves of annex passes through threaded connection with interior fixed cover, interior fixed cover passes through threaded connection with cylinder head holding screw, just in cylinder head holding screw one end card goes into the first spread groove on the fastening slider, in the second spread groove on the outer tooth cover is gone into to other end card, the interlude has the annex pole in the outer tooth cover. The utility model provides an operating table accessory fixer, simple structure, it is fixed firm, more effectual prevent that the accessory from rotating under bearing a burden, guarantee the safety of patient in the operation.

Description

Operating table accessory fixer

Technical Field

The utility model relates to the technical field of surgical instruments, especially, relate to an operating table annex fixer.

Background

The surgical instruments refer to medical instruments used in clinical operations, and besides conventional surgical instruments, some special accessory instruments, such as a suspended arm plate, a thigh support, an anesthesia screen frame, a knee joint support frame, a dirt basin and the like, need to be fixed on an operating table side rail by a circular fixer.

The current holders for fixing the accessory of the operating table round bar in the market have the following problems in the use process: under the condition of larger moment, the accessory round rod can rotate, so that the position of an operation body is changed, and the operation risk is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides an operating table accessory fixer has solved in the current fixer use annex under the condition of great moment, and the rotation can take place for the annex round bar, leads to the change of operation position, increases the technical problem of operation risk.

In order to solve the technical problem, the utility model provides a pair of operating table annex fixer, including fastening slider, internal fixation cover passes through the first screw of threaded connection, the fixed handle of revolving of fastening slider attachment, the fixed handle of revolving of annex passes through threaded connection second screw, the internal fixation cover inside callipers is equipped with the fastening slider, the fixed handle of revolving of annex passes through threaded connection with internal fixation cover, internal fixation cover passes through threaded connection with cylinder head holding screw, just in the first spread groove on the fastening slider is gone into to cylinder head holding screw one end card, in the second spread groove on the outer gear cover is gone into to other end card, the outer gear cover interlude has the annex round bar.

Preferably, the accessory fixing knob is detachably connected with the inner fixing sleeve.

Preferably, the specific number of the cylindrical head set screws is two.

Compared with the prior art, the utility model provides a pair of operating table annex fixer has following beneficial effect:

the utility model provides an operating table accessory fixer, simple structure, it is fixed firm, more effectual prevent that the accessory from rotating under bearing a burden, guarantee the safety of patient in the operation.

Drawings

Fig. 1 is a schematic view of an operating table accessory holder.

Fig. 2 is a schematic view of the structure of an accessory round bar in an accessory holder for an operating table.

Fig. 3 is a schematic view of the inner pouch of an operating table accessory holder.

Fig. 4 is a schematic view of the base of an operating table accessory holder.

Fig. 5 is a schematic view of the outer gear sleeve of an operating table accessory holder.

Fig. 6 is a schematic view of a fastening slider in an operating table accessory holder.

Reference numbers in the figures: 1. fixing a rotary handle on the side rail; 2. a first screw; 3. a base; 4. a cylindrical head set screw; 5. a second screw; 6. fastening the sliding block; 7. the accessory is fixed with a rotary handle; 8. an inner fixing sleeve; 9. an outer gear sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

As shown in fig. 1 to 6, the utility model comprises a fastening slider 6, an inner fixing sleeve 8, the inner fixing sleeve 8 is connected with a first screw 2 through a thread, the fastening slider 6 is connected with an accessory fixing knob 7, the accessory fixing knob 7 is connected with a second screw 5 through a thread, the fastening slider 6 is clamped in the inner fixing sleeve 8, the accessory fixing knob 7 is detachably connected with the inner fixing sleeve 8, the accessory fixing knob 7 is connected with the inner fixing sleeve 8 through a thread, the inner fixing sleeve 8 is connected with a cylinder head fastening screw 4 through a thread, the cylinder head fastening screw 4 has two specific numbers, one end of the cylinder head fastening screw 4 is clamped into a first connecting groove on the fastening slider 6, the other end of the cylinder head fastening screw is clamped into a second connecting groove on an outer gear sleeve 9, an accessory round bar is inserted into the outer gear sleeve 9, the cylinder head fastening screw 4 plays a guiding role, the fastening slider 6 can be ensured to move linearly, the clamping force generated by the rotation of the accessory fixing knob 7 acts on the accessory round bar, the contact area of the accessory round bar with the fastening slider 6 is increased, the friction force of both sides is increased, compared with the accessory fixing knob 7, the accessory fixing knob can directly act on the round bar, the accessory can be prevented from rotating under small friction force when the accessory rotating load; under the condition that the clamping force is not changed, the friction force between the accessory round rod and the fixer is increased, and a larger friction torque is generated, so that the torque on the accessory round rod when the accessory is loaded is offset.

Theoretical analysis:

the positive pressure of the rotary handle 7 to the round rod of the accessory is F, and the positive pressure of one side of the part 6 to the round rod is F ₁ The positive pressure of the other side of the part 6 on the round bar is F ₂ ，F ₁ ＝F ₂ All are force components of F, F ₁ And F ₂ The included angle of the angle is theta, the radius of the round rod is r, and the friction coefficient is mu;

friction force F = μ F friction force F1= μ F ₁ Friction force F2= μ F ₂ ；

F ₁ ＝F ₂ ＝1/2F/cos(θ/2)；

Without adding the element 6, the element 7 acts directly on the rod:

friction torque to round rod T = μ Fr;

add part 6, part 6 acts on the round bar:

for round bar friction torque T0= T1+ T2=2 μ F ₁ r＝μFr/cos(θ/2)；

When θ =90 °, T0=1.4T; the friction torque increases by a factor of 1.4.

When θ =120 °, T0=2T; the friction torque increases by a factor of 2.

Therefore, when cos (θ/2) is less than 1, increasing the angle θ increases the friction torque.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an operating table annex fixer, includes fastening slider (6), the fixed cover of interior (8), its characterized in that, the fixed cover of interior (8) is through threaded connection first screw (2), fastening slider (6) attachment is fixed revolves (7), the annex is fixed revolves (7) and passes through threaded connection second screw (5), the fixed cover of interior (8) inside callipers is equipped with fastening slider (6), the annex is fixed revolves (7) and the fixed cover of interior (8) is through threaded connection, interior fixed cover (8) and cylinder head holding screw (4) pass through threaded connection, just cylinder head holding screw (4) one end card is gone into in the first spread groove on fastening slider (6), and in the second spread groove on the outer tooth cover (9) of other end card income, outer tooth cover (9) interlude has the annex round bar.

2. An operating table accessory holder as claimed in claim 1, characterized in that said accessory holding knob (7) is removably connected to the internal fixing sleeve (8).

3. An operating table accessory holder according to claim 1, characterized in that the specific number of said socket set screws (4) is two.