CN204428087U - A kind of for peeling off the Multifunction operating appliances with tractive thyroid gland leaf - Google Patents

Abstract

The utility model discloses a multifunctional surgical instrument for stripping and pulling thyroid gland leaves, which comprises a working part and a handle, the working part and the handle are connected through a connecting rod, and the transverse section of the working part is arc-shaped. The working part is provided with a linkage device, and the linkage device is internally connected to the adjusting button arranged on the handle by the stay wire through the connecting rod, and the angle between the working part and the handle can be changed by turning the adjusting button. The utility model has the advantages of simple structure and convenient operation, and the doctor only needs to operate it through the handle; in addition to peeling off, the utility model can support the thyroid lobe, ensures the stability of the pulling process, and is convenient for the doctor's operation.

Description

A multifunctional surgical instrument for stripping and pulling thyroid gland lobes

technical field

The utility model relates to a medical operation instrument, in particular to an operation instrument used for stripping and pulling the thyroid lobe during operation, and assisting the doctor's operation.

Background technique

The thyroid gland is the largest endocrine gland in the human body. It is divided into two lobes, the left and right, which are connected in the middle and are H-shaped. Lobules of different sizes are surrounded by deep fascia, and there is often a ligament-like connective tissue between the lateral lobes of the thyroid gland and the cricoid cartilage. When swallowing, the thyroid gland can move up and down with swallowing.

Since there are many adjacent or connected tissues around the thyroid gland, in order to avoid damage to other tissues during the operation, when performing thyroid surgery, such as thyroid lobectomy, it is necessary to slowly remove the thyroid lobe from the connected tissue. Slowly separate, and carry out a certain amount of traction, and then resect the glandular lobe.

However, the thyroid gland lobe is soft and fragile, and it is easy to bleed during the operation. The traditional method is to use retractors and vascular forceps for clamping or pulling after suturing, because none of them can carry the gland lobe. Therefore, during the stretching process, the glandular leaves are easy to fall off, which makes the stretching effect unsatisfactory, and bleeding is easy to occur during the operation.

The inventor previously proposed a device for stripping and pulling the thyroid lobe, which has achieved good results in practical applications, but this surgical device cannot pull the trachea to protect the nerves and Therefore, the scope of use is limited; however, today's surgical operations are delicate and minimally invasive, which puts forward higher requirements for pulling and stripping instruments.

Contents of the invention

In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a multifunctional surgical instrument for stripping and pulling the thyroid lobe, which can easily adjust the angle to meet different surgical requirements.

In order to achieve the above tasks, the utility model adopts the following technical solutions:

A surgical instrument for stripping and pulling thyroid gland lobes, including a working part and a handle, the working part and the handle are connected by a connecting rod, the transverse section of the working part is arc-shaped, and a linkage device is arranged in the working part , the linkage device is internally connected by the pull wire through the connecting rod to the adjustment knob arranged on the handle, and the angle between the working part and the handle can be changed by turning the adjustment knob.

Further, the central angle corresponding to the transverse section is 150°-180°, the front end of the working part is sharp but not sharp, and the surface of the working part is smooth, which is beneficial to protect the surrounding tissues, and can replace the clamp to pull out, block, push function.

Further, the width of the working part is not more than 2cm, which can block the trachea and protect nerves and blood vessels.

Further, the linkage device includes a fixed pulley fixedly arranged in the side wall of the working part, one end of the stay wire is fixed in the inner wall of the working part, and then bypasses the fixed pulley and the limiting barrel arranged in the side wall, and passes through The inside of the connecting rod is connected to the adjustment button, and the fixed end of the backguy in the side wall of the working part is located between the fixed pulley and the limit bucket, and the fixed pulley is close to the front end of the working part.

Further, the handle is provided with a rotating rod, one end of the rotating rod passes through the handle to connect with the adjusting button, and the other end is movably installed on the fixed plate inside the handle; the adjusting button is connected with the pull wire through the rotating rod, and the pulling wire end fixed on the rotating rod.

Further, the rotating rod penetrates into the handle from the side of the handle, and can move in the axial direction of the handle; positioning cards are symmetrically arranged on the rotating rod outside the handle, and a limit slot for matching with the positioning card is arranged on the side of the handle , when the rotating rod is pushed axially so that the positioning card is located in the limit groove, the rotating rod cannot rotate.

Further, the edges of the working part are sharp but not sharp rounded edges.

Further, the handle is provided with a depression for easy gripping.

Compared with the prior art, the utility model has the following technical characteristics:

1. The structure is simple, the operation is convenient, and the doctor only needs to operate it through the handle;

2. The design of the handle is in line with the physiological structure of the hand when the human body holds it, making it easier for doctors to operate and hold it for a long time, and making the device more stable during operation;

3. The angle of the front end of the instrument can be adjusted conveniently according to the position of the surgical approach and the angles of other instruments. The adjustment process is simple, so that the assistant doctor can effectively peel and pull in different positions, which is convenient for the operation of the surgery;

4. The front end of the instrument is blunt and rounded, which can achieve good peeling without damaging normal body tissues;

5. In addition to stripping, it can support the thyroid lobe, ensuring the stability of the pulling process and facilitating the doctor's resection.

6. This device can push and pull the trachea, protect and pull the nerves and blood vessels.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a longitudinal sectional view of the utility model;

Fig. 3 is a structural schematic diagram of the inside of the handle;

The symbols in the figure represent: 1—working part, 2—connecting rod, 3—sag, 4—handle, 5—positioning card, 6—adjustment button, 7—rotating rod, 8—fixed pulley, 9—guy wire, 10— Limit barrel, 11—fixed plate;

Detailed ways

For minimally invasive surgery, the most important thing is to use the limited space to complete the operation under the premise of minimally invasive surgery, so as to reduce the patient's pain and facilitate recovery; while for thyroid surgery, if the incision is too large, it will inevitably leave a large area during healing. Scars bring psychological burden to patients. Therefore, in the operation process, the cooperative use of instruments is very important. How to operate accurately and quickly in a limited space puts forward further requirements for surgical instruments.

The surgical instrument for stripping and pulling the thyroid lobe proposed in this utility model, as shown in the figure, can simultaneously complete the work of stripping and pulling the gland lobe during the operation, while the traditional instrument stripping and pulling are separated , which requires more space for instrument operation, and requires more doctor-assisted operations, which undoubtedly increases the difficulty of the operation.

This surgical instrument includes a working part 1 and a handle 4. The working part 1 and the handle 4 are connected by a connecting rod 2. The transverse section of the working part 1 is arc-shaped, and a linkage device is arranged in the working part 1. The linkage device The pull wire 9 is internally connected to the adjustment knob 6 provided on the handle 4 through the connecting rod 2 , and the angle between the working part 1 and the handle 4 can be changed by turning the adjustment knob 6 .

The working part 1 and the handle 4 are connected by the connecting rod 2 to form a T-shaped structure, which is not only convenient for the operating doctor to hold, but also easier to apply force, which is helpful for long-term operation. The transverse section of the working part 1 is arc-shaped, that is, a tile-shaped structure. This structure can use its edge part to carefully peel off the thyroid gland lobe, and can accommodate and support the gland lobe with its concave 3 to play a role in traction. pull effect.

Due to the limitation of the position of the surgical opening and the operation of the chief surgeon, there is not enough space and position for the operating doctor who assists in pulling the thyroid lobe, so for surgical instruments, it is required that they can cooperate with the doctor as conveniently as possible to operate . In this solution, considering the practical problems encountered in the operation process, an adjustable angle structure between the working part 1 and the connecting rod 2 is set, that is, for the operating doctor, no matter what its position is, it can be adjusted by adjusting the working part 1 and the connecting rod. The angle between the handles 4 is used to effectively pull the glandular lobe, which leaves sufficient space for the position of the operating doctor.

Considering the actual environment of the operation, the adjustment mechanism should not be very complicated, and the simpler the outer surface of the instrument, the better. Therefore, the adjustment of the angle can be easily realized through the adjustment button 6 on the handle 4 . The adjustment button 6 controls the linkage device through the stay wire 9. When the adjustment knob 6 is turned to tighten the stay wire 9, the linkage device drives the working part 1 to move towards the direction close to the connecting rod 2, which changes the relationship between the working part 1 and the connecting rod 2. angle between.

The utility model further proposes the following optimization scheme:

The central angle of the transverse section is 150°-180°.

Since the transverse section of the working part 1 is arc-shaped, the arc corresponds to a certain central angle. For the working part 1, the shape of the depression 3 should be limited within a certain range, if it is too small, the glandular leaf cannot be effectively pulled, and if it is too large, it will not be easy to peel off. Comprehensive consideration, combined with the actual application of the inventor, the central angle corresponding to the arc should be 150°-180°, that is, the edges on both sides of the working part are slightly raised, and the edges are sharp but not sharp; sharp but not sharp refers to The edge is a tapered round surface, which is not sharp, but it is convenient for peeling operation; while the surface of the working part is smooth, which is good for protecting the surrounding tissue, and can replace the clamp to pull out, block and push.

The width of the working part 1 should not exceed 2 cm, and the width of the working part 1 refers to the chord length of the arc-shaped section corresponding to the working part 1 . This width is conducive to various operations of the working part 1, such as blocking the trachea, protecting nerves and blood vessels, and the like.

The linkage device includes a fixed pulley 8 fixedly arranged in the side wall of the working part 1, and one end of the stay wire 9 is fixed in the inner wall of the working part 1, then bypasses the fixed pulley 8 and the limit bucket 10 arranged in the side wall, and passes through The connecting rod 2 is internally connected to the adjustment button 6, and the fixed end of the stay wire 9 in the side wall of the working part 1 is located between the fixed pulley 8 and the limit bucket 10, and the fixed pulley 8 is close to the front end of the working part 1.

The linkage method proposed here is based on the principle that, since the backguy 9 is a rigid wire, it will not expand and contract when one end is tightened, and with this structure, the backguy 9 will expand when the backguy 9 does not shrink. Drive the working part 1 to move in one direction. As shown in Figure 2, if the section is made axially from the center of the working part 1, the working part 1 that is in contact with the cut surface during cutting is the side wall of the working part 1, and this set of structures is set on the side wall middle. The front end is the fixed pulley 8, the middle part is the fixed end of the backguy 9, and the back is the limit bucket 10, and the fixed end of the backguy 9 and the fixed pulley 8 are preferably located in the position of one-third of the front end of the working part 1. When adjusting the angle, the other end of the backguy 9 is tightened, and the fixed end is limited by the bearing of the fixed pulley 8 and the position of the limit bucket 10, so the fixed pulley 8 is subjected to the force along the direction of the backguy 9 at this time, which can be decomposed into Two component forces parallel to the direction of connecting rod 2 and perpendicular to the direction of connecting rod 2. The component force perpendicular to the direction of the connecting rod 2 is canceled due to the limitation of the connecting part (rotation shaft), while the force parallel to the direction of the connecting rod 2 drives the front end of the working part 1 to move towards the direction close to the connecting rod 2, so as to realize the adjustment work function of the angle between section 1 and link 2.

The handle 4 is provided with a rotating rod 7, one end of the rotating rod 7 passes through the handle 4 and is connected with the adjusting button 6, and the other end is movably installed on the fixed plate 11 inside the handle 4; the adjusting button 6 passes through the rotating rod 7 and the pull wire 9 Connect, stay wire 9 ends are fixed on the rotating rod 7.

For the adjustment process at the 4 ends of the handle, in this scheme, a rotating rod 7 is used to tighten the stay wire 9. When the adjusting knob 6 is rotated, the adjusting knob 6 drives the rotating rod 7 to rotate, and the rotating rod 7 rotates to wind the stay wire 9 around the rotating rod 7. On, and realize the shrinkage of this end stay wire 9.

The rotating rod 7 penetrates into the handle 4 from the side of the handle 4, and can move along the axial direction of the handle 4; Limiting groove, when the rotating rod 7 is pushed axially to make the positioning card 5 be located in the limiting groove, the rotating rod 7 cannot rotate.

After adjusting the position, there should be a more convenient way to fix it. In this solution, a positioning card 5 and a limiting groove structure are provided, wherein multiple pairs of limiting grooves can be provided, distributed in a circle, so that the positioning card 5 can be fixed at each position. When fixing, it is only necessary to tighten the pull wire 9, align the positioning card 5 with the limit slot, and push the rotating rod 7; when it needs to be adjusted again, pull out the positioning card 5 and turn the adjustment button 6, and fix it after the position is adjusted .

In order to avoid scratching other tissues of the body during the operation, the edge of the working part 1 is a sharp but not sharp round edge, the edge is reduced, and the thickness is slightly smaller than the thickness of other parts, which can play a good peeling effect; and the handle 4 is set There is a depression 3 for easy holding, which coincides with the holding of human hands, is convenient for doctors to hold, and can play an anti-slip effect at the same time.

Claims (8)

1. one kind for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, comprise operate portions (1) and handle (4), it is characterized in that, described operate portions (1) is connected by connecting rod (2) with handle (4), the lateral cross section of operate portions (1) is arc-shaped, operate portions is provided with linkage in (1), linkage is connected internally to the positioning button (6) be arranged on handle (4) by connecting rod (2) by bracing wire (9), rotation positioning button (6) can change the angle between operate portions (1) and handle (4).

2. as claimed in claim 1 for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, it is characterized in that, the central angle that described circular arc is corresponding is 150 ° ~ 180 °.

3. as claimed in claim 1 for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, it is characterized in that, described linkage comprises the fixed pulley (8) be fixedly installed in operate portions (1) sidewall, described bracing wire (9) one end is fixed in operate portions (1) inwall, then the spacing bucket (10) walked around fixed pulley (8) and arrange in the sidewall, positioning button (6) is connected internally to through connecting rod (2), the stiff end of bracing wire (9) in operate portions (1) sidewall is positioned between fixed pulley (8) and spacing bucket (10), and fixed pulley (8) is near the front end of operate portions (1).

4. as claimed in claim 1 for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, it is characterized in that, bull stick (7) is provided with in described handle (4), bull stick (7) one end passes handle (4) and is connected with positioning button (6), and the other end is movable to be arranged on the inner fixing head (11) of handle (4); Positioning button (6) is connected with bracing wire (9) by bull stick (7), and bracing wire (9) end winding support is on bull stick (7).

5. as claimed in claim 4 for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, it is characterized in that, described bull stick (7) penetrates handle (4) from handle (4) side, can moving axially along handle (4); The bull stick (7) that handle (4) is outside is symmetrically arranged with locator card (5), handle (4) side is provided with the stopper slot coordinated with locator card (5), when being promoted vertically by bull stick (7) to make locator card (5) be arranged in stopper slot, bull stick (7) can not rotate.

6. as claimed in claim 1 for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, it is characterized in that, the edge of described operate portions (1) is round edge.

7. as claimed in claim 1 for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, it is characterized in that, handle (4) is provided with the depression (3) being convenient to grip.

8. as claimed in claim 1 for peeling off the Multifunction operating appliances with tractive thyroid gland leaf, it is characterized in that, the width of described operate portions (1) is no more than 2cm.