CN209996386U - fixed drag hook for orthopedic operation - Google Patents

Abstract

The utility model discloses a orthopedics of medical instrument field is with fixed drag hook with operation, this kind of fixed drag hook include contact patient's the pull bow and the rack that the control pull bow removed, pull the bow and include stiff end and removal end, the stiff end all is equipped with the swivel mount with removal end and patient contact segment, be equipped with stop device between swivel mount and the pull bow, and remove and be equipped with the rack kayser in the end, rack kayser coaxial coupling has the limit wrench who pastes and lean on the removal end outside.

Description

fixed drag hook for orthopedic operation

Technical Field

The utility model belongs to the field of medical equipment, specifically fixed drag hook is used in orthopedics operation.

Background

The fixed drag hook is also called a retractor, is a common traction device in orthopedics, and has the functions of pulling tissues such as skin, muscle and the like so as to be convenient for doctors to operate and observe, the drag hook has various types and different shapes, the -shaped requirements of the drag hook are that the surface is smooth, no edge, burr, trachoma, crack and curvature are suitable, the connection is firm, the use is light and flexible, the most important is that the stability after expansion can be flexibly controlled, and denier drag hook is fixed and cannot be loosened naturally.

In view of the above requirements, the drag hooks are classified into two categories, types are commonly used as a handheld drag hook and a fixed drag hook in clinic, when the drag hook is used, the pulling force is required to be uniform and gentle, so as to avoid stimulating the operation part to cause tissue injury or influence the normal operation of the operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides adjustable fixed hooks for surgical operation.

In order to achieve the purpose, the technical scheme of the utility model is that the orthopedic surgery fixing retractor comprises a traction bow contacting with a patient and a rack controlling the traction bow to move, wherein the traction bow comprises a fixed end and a movable end, the contact parts of the fixed end, the movable end and the patient are respectively provided with a rotary seat, a limiting device is arranged between the rotary seat and the traction bow, a rack clamping lock is arranged in the movable end, and the rack clamping lock is coaxially connected with a limiting wrench attached to the outer side of the movable end.

After the scheme is adopted, the following beneficial effects are realized: 1. compared with the fixed drag hook in the prior art, the device has a simple structure, realizes locking by utilizing the ratchet lock inside the traction bow, saves the volume and is convenient for the medical personnel to operate.

2. For fixed drag hook among the prior art, can adjust fixed drag hook through the swivel mount between this device and the patient, change the position that fixed drag hook sheltered from, will be exposed by the position that fixed drag hook sheltered from before, the medical personnel of being convenient for observe and perform the operation.

3. Compared with a fixed drag hook in the prior art, the device utilizes the limit wrench to control the rack clamping lock, and the controllability is enhanced.

, the position limiter comprises a pipe sleeve, a tension spring and a lock, the pipe sleeve and the lock are sleeved with each other, the bottom of the lock is connected with the bottom of the pipe sleeve through the tension spring, and the lock is ejected out by the elasticity of the tension spring to complete locking.

, opening a round hole on the surface of the rotary seat to make the spring restore to natural length when contacting the lock, the round hole being arranged around the surface of the rotary seat, when the round hole contacts the lock, the lock is impacted by the restoring force of the spring, the lock is bounced into the round hole, at this time, the lock and the round hole complete locking, the rotary seat keeps relative static state.

And , the depth of the round hole is 2-4mm, so that the round hole can be automatically unlocked when the steering is convenient, and the working efficiency is improved.

, the transposition is sunken towards the side contacted with the patient, the cross section of the transposition is disc-shaped, when the long-time operation is carried out, the transposition buffers the human body and the fixed draw hook, the pain of the human body is reduced, meanwhile, the disc-shaped design avoids negative pressure formed when the transposition is contacted with the patient, and the injury to the patient after the operation is reduced.

The term "dish" refers to a shape similar to the conventional dish on a table, which is characterized by a concave center and a depth of the concave center less than the depth of the bowl for rice.

, a radial drainage groove is arranged at the side of the rotary seat contacting with the patient , thus avoiding the accumulation of blood in the rotary seat to separate the rotary seat from the human body and reducing the potential safety hazard.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a full sectional view of the moving end and the stop device of FIG. 1;

fig. 3 is an enlarged view at B in fig. 2.

Detailed Description

Further details are provided below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a traction bow 1, a fixed end 101, a movable end 102, a rack 2, a rotary seat 3, a drainage groove 4, a limiting device 5, a pipe sleeve 501, a tension spring 502, a lock 503, a limiting wrench 6 and a round hole 7.

The embodiment is basically as shown in figure 1, fixed retractor for orthopedic surgery comprises a traction bow 1 contacting with a patient and a rack 2 controlling the traction bow 1 to move, the traction bow 1 comprises a fixed end 101 and a movable end 102, a rotary seat 3 is arranged on the part of the fixed end 101 and the movable end 102 contacting with the patient, the cross section of the rotary seat 3 is disc-shaped, and radial drainage grooves 4 are arranged in the disc-shaped.

As shown in fig. 2, a limiting device 5 is clamped between the rotary seat 3 and the traction bow 1, the limiting device 5 comprises a pipe sleeve 501, a tension spring 502 and a lock 503, the pipe sleeve 501 and the lock 503 are sleeved with each other, and the bottom of the lock 503 is connected with the bottom of the pipe sleeve 501 through the tension spring 502. A rack 2 is rotationally connected in the movable end 102 in a locking manner, and a limit wrench 6 attached to the outer side of the movable end 102 is coaxially connected with the rack 2 in a locking manner.

Referring to fig. 3, a round hole 7 for restoring the tension spring 502 to a natural length when contacting the lock 503 is formed on the surface of the rotary base 3, the depth of the round hole 7 is 4mm, and the round hole 7 is circumferentially arranged around the surface of the rotary base 3.

The specific implementation process is as follows: when medical personnel used fixed drag hook, the outside of stiff end 101 was pasted the patient's operation department earlier, and medical personnel promoted on rack 2 afterwards and removed end 102, when removing end 102 and promoted predetermined operation position, medical personnel pulled limit wrench 6, rotated along with limit wrench 6 with 2 kaysers of rack of 6 coaxial coupling of limit wrench this moment, accomplished the locking between removal end 102 and rack 2 until 2 kaysers of rack.

When the operation stage is carried out, medical personnel can realize the adjustment of the front and back directions of the fixed draw hook through the small-amplitude rotation of the rotary seat 3, in the rotation process of the rotary seat 3, the lock head 503 is firstly subjected to the circumferential force generated when the rotary seat 3 rotates, the force application point of the circumferential force is positioned in the round hole 7 where the lock head 503 is positioned, in the continuous force application process, the circumferential force generates an axial component force, the lock head 503 is compressed by the component force, the locking between the lock head 503 and the round hole 7 is released, and the rotary seat 3 generates the turning trend. When the rotation seat 3 finishes steering, the lock head 503 is clamped into the currently corresponding round hole 7 under the action of the restoring force of the tension spring 502, and locking is finished.

When long-time operation, swivel mount 3 forms the buffering to human and fixed drag hook between, reduces human painful sense, forms the negative pressure when swivel mount 3 and patient contact are avoided in the discoid design simultaneously, reduces the injury of postoperative to the patient, and the blood that the patient flows out flows through drainage groove 4, avoids blood to pile up in swivel mount 3 and makes swivel mount 3 and human break away from the contact, has reduced the potential safety hazard.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. The orthopedic surgery fixing retractor is characterized by comprising a traction bow contacting a patient and a rack controlling the traction bow to move, wherein the traction bow comprises a fixed end and a movable end, rotary bases are arranged on the parts, contacting the patient, of the fixed end and the movable end, a limiting device is arranged between the rotary bases and the traction bow, a rack clamping lock is arranged in the movable end, and the rack clamping lock is coaxially connected with a limiting wrench attached to the outer side of the movable end.
2. 2. The orthopedic surgery fixing retractor according to claim 1, wherein the limiting device comprises a tube sleeve, a tension spring and a lock, the tube sleeve and the lock are sleeved with each other, and the bottom of the lock is connected with the bottom of the tube sleeve through the tension spring.
3. 3. The orthopedic surgery fixing retractor according to claim 2, wherein the surface of the rotatable base has a circular hole for restoring the tension spring to its natural length when the lock is engaged, the circular hole being circumferentially disposed around the surface of the rotatable base.
4. 4. The orthopedic surgery retractor according to claim 3, wherein the depth of the circular hole is 2-4 mm.
5. 5. The orthopedic fixation hook as claimed in claim 4, wherein the rotary seat is recessed toward the side for contacting the patient, and the cross-section of the rotary seat is disk-shaped.
6. 6. The orthopedic fixation hook as claimed in claim 5, wherein the side of the rotary seat contacting the patient is formed with a radial drainage groove.

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