CN210330632U

CN210330632U - Hand flexor tendon tractor

Info

Publication number: CN210330632U
Application number: CN201920695559.9U
Authority: CN
Inventors: 王梦琴; 陈山林; 刘波; 王聪; 赵斌; 田伟
Original assignee: Beijing Jishuitan Hospital
Current assignee: Beijing Jishuitan Hospital
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-04-17
Anticipated expiration: 2029-05-15

Abstract

The utility model discloses a hand flexor tendon tractor, which comprises a silicone tube, wherein the center of the silicone tube is provided with a yarn guide hole, the two ends of the silicone tube are smooth, one end of the silicone tube is an opening of the yarn guide hole, the other end of the silicone tube is a blind end, and an air bag structure with the length of 1cm is arranged in the blind end; the metal guide wire penetrates through the guide wire hole from one end of the silicone tube to the other end of the silicone tube, and the metal guide wire is a plastic guide wire; the utility model has the advantages that: can safely and efficiently draw the broken ends of the flexor tendons to smoothly return to the original injury position through the sheath tube; effectively reduces the operation trauma, shortens the operation time and protects the flexor tendon and the tendon sheath thereof; the reduction or the loss of the function of the tendon sheath pulley and the reduction of serious complications such as postoperative flexor tendon adhesion and the like are facilitated; the curative effect of the operation is improved, and the quick recovery is promoted; novel structure, convenient operation, reliable effect and standardized operation rules, and achieves the purpose of the invention.

Description

Hand flexor tendon tractor

Technical Field

The utility model relates to a traction device used when the flexor tendon broken end which retracts is dragged to the original position again to be sewed after the flexor tendon is broken, in particular to a hand flexor tendon tractor, which belongs to the field of tractors.

Background

Flexor tendon rupture is a common emergency trauma in hand surgery. After the flexor tendon is broken, due to the retraction of proximal muscles, the change of hand position, surgical exploration and other reasons, the broken end of the flexor tendon is often retracted towards the proximal end, so that the broken end of the flexor tendon cannot be found at the original wound position. If the surgical wound is directly explored from the original wound to the near end, the surgical wound is greatly increased, and the tendon sheath of the flexor tendon is damaged, so that serious complications such as adhesion of the flexor tendon after surgery, weakened or missing pulley function of the tendon sheath and the like are caused. In order to reduce the above complications, it is necessary to make an additional incision near the original wound, find the displaced flexor tendon stump, pass through the flexor sheath, and suture the distal and proximal stumps of the flexor tendon at the original wound site. Because the flexor tendon sheath tube has smooth tube wall, hard texture, small elasticity and small tube diameter and long stroke, and the flexor tendon is soft, the broken end is easy to crack, and the broken end of the flexor tendon is generally difficult to directly pass through the sheath tube to be led back to the original damaged part. In the past, when the injury is clinically treated, a catheter or a kirschner wire is usually used to penetrate through a sheath tube to reach the broken end of the flexor tendon, then the broken end of the flexor tendon is bound with the catheter or the kirschner wire, and then the catheter or the kirschner wire is pulled backwards, so that the flexor tendon is led back to the original injury to be sutured. The operation has the defects that the sheath tube is easily damaged due to the hard texture of the kirschner wire, the joint of the tendon stump and the rubber tube or the kirschner wire is easily dropped, the diameter of the joint is too large or the tendon stump is not smooth and is difficult to pass through the sheath tube, and the like, so that the difficulty and the times of passing the tendon stump through the sheath tube are increased. Repeated operation not only prolongs the operation time, increases the operation difficulty, and the sheath injury caused by the operation also aggravates the tendon adhesion degree after the operation, reduces the operation effect, and prolongs the recovery time of the patient and other adverse consequences. The Chinese utility model patent with the name of 'flexor digitorum profundus tendon retraction tractor' and the publication number of 'CN 204260770U' discloses a flexor digitorum profundus tendon retraction tractor which consists of a steel wire and an infusion tube, wherein one end of the infusion tube is in an inclined plane shape; a steel wire with a ring at one end is arranged in the infusion set tube. The ring is fixed at the port of the infusion tube in the shape of an inclined plane by a silk thread; the end of the wire without the loop cannot go beyond the mouth of the infusion set tube. However, this product has the following drawbacks: 1. the product uses the perfusion tube, cuts out the inclined plane formed by oneself, this inclined plane is still hard in texture, also sharper, though there is the assistance of steel wire, because it is the cusp, still puncture the tendon sheath easily, not only increased the difficulty through the tendon sheath, still injured the tendon sheath; 2. the steel wire ring is sewn on the inclined plane of the infusion tube, so that the smoothness of the infusion tube is damaged, and the difficulty of passing through the sheath tube is increased; 3. the wire is not shapeable and flexible (it is twisted into a loop and if the hardness is too high, it cannot be twisted into a loop or it is too large), i.e. the wire itself does not provide strength assurance within the infusion tube.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model designs a hand flexor tendon retractor, the advancing end is a smooth round blind end, the inside is an air bag-like structure, the hand flexor tendon retractor can easily pass through a sheath tube, and the sheath tube is not damaged; the silicone tube and the plastic metal guide wire form a smooth catheter which has better strength and good plasticity; after the silicone tube smoothly passes through the sheath tube, a part of the air sac is cut off to accommodate the tendon stump and smooth withdrawal. The utility model discloses a use more conveniently, safe and reliable has improved work efficiency.

The technical scheme of the utility model is that:

the hand flexor tendon tractor comprises a silicone tube and a metal guide wire, wherein a guide wire hole is formed in the center of the silicone tube, two ends of the silicone tube are round and smooth, one end of the silicone tube is provided with an opening of the guide wire hole, the other end of the silicone tube is a blind end, namely a forward end, and an air bag structure with the length of 1cm is arranged in the blind end; the metal seal wire by the one end of silicone tube passes wire guide hole to the other end, the metal seal wire is the plasticity seal wire, helps strengthening the hardness of silicone tube, improves the matching nature of silicone tube appearance and sheath pipe shape to do benefit to the silicone tube and pass through the sheath pipe smoothly. After the silicone tube smoothly passes through the sheath tube, the blind end is cut off, and the air sac is exposed to accommodate the tendon broken end and smooth withdrawal.

Further, the metal guide wire is a titanium alloy guide wire.

Further, an end portion of the metal guide wire is exposed for operation.

Furthermore, the length of the silica gel tube is 20cm, the cross section of the silica gel tube is circular, and the diameter of the silica gel tube is 0.4 cm; the metal guide wire is a drawable and shapeable metal guide wire with the length of 25 cm.

Furthermore, the silicone tube has uniform thickness, smooth surface and blunt two ends.

When the tractor is clinically applied, the hardness of the tractor is increased through the metal guide wire, the appearance of the tractor is maintained, and the smooth passing of a sheath tube is facilitated.

When the retractor is used, the silicone tube of the retractor smoothly passes through the sheath tube to reach the auxiliary incision, the blind end at the other side end of the silicone tube of the retractor is cut off, the internal air bag structure is exposed, the metal guide wire is appropriately retracted, and the broken end of the flexor tendon is placed into the air bag and is sewn and fixed. Retracting the retractor silicone tube, and retracting the broken ends of the flexor tendons to the original wound through the sheath tube. The silicone tube of the retractor is removed, and the broken ends of the flexor tendons are exposed, so that the flexor tendon suture repair is completed. The advancing end is smooth and round, can easily pass through the sheath and does not damage the sheath; the silicone tube and the plastic metal guide wire form a solid and smooth catheter which has better strength and good plasticity; after the silicone tube smoothly passes through the sheath tube, part of the air bag is cut off to accommodate the tendon broken end, so that the retraction is very smooth, the use is more convenient, the comfort level is high, and the working efficiency is improved

The utility model has the advantages that: can safely and efficiently draw the broken ends of the flexor tendons to smoothly return to the original injury position through the sheath tube; effectively reduces the operation trauma, shortens the operation time and protects the flexor tendon and the tendon sheath thereof; the reduction or the loss of the function of the tendon sheath pulley and the reduction of serious complications such as postoperative flexor tendon adhesion and the like are facilitated; the curative effect of the operation is improved, and the quick recovery is promoted; novel structure, convenient operation, reliable effect and standardized operation rules, and achieves the purpose of the invention.

The present invention will be further explained with reference to the drawings and examples.

Drawings

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

fig. 2 is a schematic structural view of a silicone tube according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a metal guide wire according to an embodiment of the present invention.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is not intended to limit the invention.

Example 1

As shown in fig. 1-3, a hand flexor tendon retractor comprises a silicone tube 1, wherein a guide wire hole 2 is arranged at the center of the silicone tube 1; the two ends of the silicone tube 1 are smooth and round, wherein one end is a wire guide hole opening, the other end is a blind end (advancing end), and an air bag structure 3 with the length of 1cm is arranged in the blind end; and the metal guide wire 4 penetrates into the blind end at the other side from the guide wire hole of the silicone tube.

One end part of the metal guide wire is exposed to facilitate operation.

The length of the silica gel tube is 20cm, the cross section of the silica gel tube is circular, and the diameter of the silica gel tube is 0.4 cm; the metal guide wire is a drawable and shapeable titanium alloy guide wire with the length of 25 cm.

The silicone tube has uniform thickness, smooth surface and blunt two ends.

When the tractor (silicone tube) smoothly passes through the sheath tube to reach the auxiliary incision, the blind end at the other side end of the tractor (silicone tube) is cut off to expose the internal air bag structure, the metal guide wire is appropriately retracted, and the broken end of the flexor tendon is placed into the air bag and is sewn and fixed. The retracting tractor (silicone tube) draws the broken ends of the flexor tendons back to the original wound through the sheath tube. The retractor (silicone tube) is removed, and the broken ends of the flexor tendons are exposed, so that the flexor tendon suture repair is completed.

Claims

1. Hand flexor tendon tractor which characterized in that: the novel medical instrument is characterized by comprising a silicone tube, wherein a thread guide hole is formed in the center of the silicone tube, two ends of the silicone tube are round and smooth, one end of the silicone tube is provided with an opening of the thread guide hole, the other end of the silicone tube is a blind end, and an air bag structure with the length of 1cm is arranged in the blind end; the metal guide wire passes through the guide wire hole to the other end from one end of the silicone tube, and the metal guide wire is a plastic guide wire.

2. The hand flexor tendon retractor of claim 1, wherein: the metal guide wire is a titanium alloy guide wire.

3. The hand flexor tendon retractor of claim 1, wherein: one end portion of the metal guide wire is exposed.

4. The hand flexor tendon retractor of claim 1, wherein: the length of the silica gel tube is 20cm, the cross section of the silica gel tube is circular, and the diameter of the silica gel tube is 0.4 cm; the metal guide wire is a drawable and shapeable metal guide wire with the length of 25 cm.

5. The hand flexor tendon retractor of claim 1, wherein: the silicone tube has uniform thickness, smooth surface and blunt two ends.