CN101401734B - lower abdominal retractor - Google Patents

Abstract

A lower abdominal retractor includes a U-shaped support (1) and an amplitude-changing rod (5) formed by connecting a long rod and a short rod. The U-shaped support (1) has an amplitude-adjusting bolt (2) screwed onto its bottom. One end of the amplitude-adjusting bolt (2) is fitted onto a connecting seat (3) and can move the connecting seat (3) back and forth. A first pivot (4) is installed on each side of the connecting seat (3), and the first pivot is fitted into a pivot slot (22) at the end of the short rod of the amplitude-changing rod (5). A second pivot (16) is installed on the top of each of the two straight edges of the U-shaped support (1), and the second pivot (16) is fitted into a pivot hole (23) located at the corner of the amplitude-changing rod (5). A detachable side hook plate (6) is also installed on the long rod of the amplitude-changing rod (5). This invention is reasonably designed and easy to use, and has significant effects on exposing the surgical field of the lower abdomen, reducing surgical trauma, shortening surgical time, and reducing the workload of medical personnel.

Description

lower abdominal retractor

technical field

The invention relates to a medical operation instrument, in particular to a retractor for increasing the surgical field of view of the lower abdomen, in particular to a retractor for the lower abdomen.

Background technique

As we all know, lower abdominal surgery is a common operation, especially in the field of gynecology, it is often necessary to perform lower abdominal surgery to remove diseased tissues.

After the lower abdomen is opened, due to the certain elasticity of human muscle tissue, the incision must be separated to have a better surgical field of view. The existing method is to rely on the surgical assistant to pull the incision apart from both sides with instruments. The most common method is medical surgery. Retractor, and medical operation retractor has defects such as inconvenient use, complex operation and retraction with manpower. The other is to separate the incisions using large retractors attached to the operating table. The former method requires two assistants, and the applied force is difficult to control. The latter method will make the operating table very complicated, affect the normal operation of the surgeon, and make it difficult to adjust the retraction range, which can be adjusted at any time during the operation. The size of the incision opening often occurs. At the same time, this kind of retractor has a complex structure, large volume, very complicated manufacture and installation, and the difficulty of disinfection and workload are small. Therefore, it is necessary to develop a retractor that can be directly placed around the patient's abdominal incision. It is very important to have a lower abdominal retractor that can easily adjust the opening size of the incision.

Contents of the invention

The purpose of the present invention is to design a lower abdomen retractor which can be directly placed on the patient's abdomen and which is very convenient to adjust the opening.

Technical scheme of the present invention is:

A lower abdomen retractor, comprising a U-shaped bracket 1 and a horn 5 connected by a long rod and a short rod, characterized in that the bottom of the U-shaped bracket 1 is screwed with an amplitude modulation bolt 2, and the amplitude modulation One end of the bolt 2 located in the U-shaped bracket 1 is set on a connecting seat 3 and can drive the connecting seat 3 to move back and forth. A first pivot 4 is respectively installed on both sides of the connecting seat 3, and the first pivot is sleeved on the variable In the pivoting slot 22 at the end of the short rod 5, a second pivot 16 is respectively installed on the top of the two straight sides of the U-shaped bracket 1, and the second pivot 16 is sleeved on the horn 5. A detachable side hook plate 6 is also installed on the long rod of the horn 5 in the pivot hole 23 at the corner.

A set stud 8 for fixing the end hook plate 7 is also installed on the connecting seat 3. The end hook plate 7 is composed of a fixing bar 10 and an end pull plate 11. The fixing bar 10 is provided with a long groove 9 and The through hole 14 connected with the long groove 9, the end pull plate 11 is hingedly connected with the fixing bar 10; the fastening stud 8 is formed by connecting a threaded part 12 and a cylindrical part 13, and the outer diameter of the cylindrical part 13 is larger than the long The width of the slot 9 and the diameter of the through hole 14 are not smaller than the outer diameter of the cylindrical portion 13 .

A fastening plate 15 for rotating the fastening stud 8 is mounted on the upper end of the cylindrical portion 13 .

The end pull plate 11 is a solid arc plate, a grooved arc plate or an arc frame made of stainless steel wire.

The connecting seat 3 and both sides of the tightening stud 8 are respectively provided with guiding and positioning bosses 25 .

The side hook plate 6 is composed of a side pull plate 17 and a set block 18, the side pull plate 17 is hingedly connected with the set block 18, and a socket 19 matching the long rod of the horn 5 is provided on the set block 18 , An anti-rotation protrusion 20 is provided in the socket 19, and a groove 21 matched with the anti-rotation protrusion 20 is provided on the long rod of the horn 5.

The side pull plate 17 is a solid arc plate, a grooved arc plate or an arc frame made of stainless steel wire.

A handle 24 is mounted on one end of the amplitude-adjusting bolt 2 located outside the bottom of the U-shaped bracket 1 .

Beneficial effects of the present invention:

The present invention can retract the bilateral or unilateral lower abdominal wall according to different operation needs, so that the operation field can be exposed more perfectly, and the pain of manual traction can be avoided. Turning the handle drives the amplitude-modulating bolt to move back and forth, so that the symmetrically arranged horns are opened or closed, and the side retractor is driven to retract the surgical incision of the lower abdomen, which can avoid mechanical damage to the abdominal wall.

The invention has the advantages of simple and reasonable structure, safe and convenient use, and can be widely used in lower abdomen operations. Clinical trials prove that the present invention is reasonable in design and convenient in use, and has obvious effects on exposing the surgical field of the lower abdomen, reducing surgical wounds, shortening operation time, and reducing the labor force of medical personnel.

Description of drawings

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

Fig. 2 is one of the structural schematic diagrams of the end hook plate of the present invention.

Fig. 3 is the second schematic diagram of the structure of the end hook plate of the present invention.

Fig. 4 is the third schematic diagram of the structure of the end hook plate of the present invention.

Fig. 5 is a structural schematic diagram of the tightening stud of the present invention.

Fig. 6 is one of the structural schematic diagrams of the side hook plate of the present invention.

Fig. 7 is the second structural diagram of the side hook plate of the present invention.

Fig. 8 is the third structural diagram of the side hook plate of the present invention.

Fig. 9 is a schematic structural view of a horn on one side of the present invention.

Fig. 10 is a schematic structural view of the connecting seat of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-10.

A lower abdomen retractor, all made of stainless steel, it includes a U-shaped bracket 1 and two symmetrically arranged horns 5 that are connected by long rods and short rods, as shown in Figure 1. The bottom of the U-shaped bracket 1 is screwed with an amplitude modulation bolt 2, and one end of the amplitude modulation bolt 2 located in the U-shaped bracket 1 is set on a connecting seat 3 (as shown in Figure 10). When the amplitude modulation bolt 2 is rotated, it can drive the connection The seat 3 moves back and forth, and a first pivot 4 is respectively installed on both sides of the connecting seat 3, and the first pivot is sleeved in the pivoting slot 22 at the end of the short rod of the horn 5 (as shown in Figure 9). A second pivot 16 is respectively installed on the top of the two straight sides of the U-shaped bracket 1, and the second pivot 16 is set in the pivot hole 23 at the corner of the horn 5; A handle 24 for conveniently rotating the amplitude modulation bolt is installed on one end outside the bottom of the bottom. During specific implementation, the handle 24 can also be removed, and only use auxiliary tools (such as wrench, screwdriver, etc.) to realize the rotation of the amplitude modulation bolt 2 when in use. operate. A detachable side hook plate 6 for stretching the lower abdomen of the human body is also installed on the long pole of the horn 5. The side hook plate 6 is composed of a side pull plate 17 and a suit block 18. The plate 17 is hingedly connected with the set block 18, and a socket 19 matching the long rod of the horn 5 is provided on the set block 18, and an anti-rotation protrusion 20 is provided in the socket 19 (anti-rotation during specific implementation). Boss can be a point, also can be strip shape, can also be replaced by the screw that can pass through set hole), is provided with a groove 21 that matches anti-rotation protrusion 20 on the long bar of horn 5; The shape of the plate 17 can be designed according to the depth of the operation and the body shape of the patient. Its basic shape can be referred to as shown in Figures 6, 7, and 8. The curved plate with slots is suitable for the situation where it is necessary to go deep into the human body to remove the relevant organs and tubes. The slots in it are beneficial to prevent the occurrence of poor blood flow and necrosis caused by too long operation time. The stainless steel plate shown in Figure 8 The arc-shaped frame made of bent wire is suitable for situations where the operation time is longer. In addition, in order to facilitate the operation and prevent the upper or lower parts of the incision from affecting the surgical field of view, an end hook plate 7 that is consistent with the side hook plate 6 can also be installed on the connecting seat 3, and the end hook plate 7 It is composed of a fixed bar 10 and an end pull plate 11. The fixed bar 10 is provided with a long groove 9 and a through hole 14 connected with the long groove 9. The end pull plate 11 is hingedly connected with the fixed bar 10, and the fixed bar 10 is connected by a tightening stud. 8 (as shown in Figure 5) is fixed on the connecting seat 3, and the set stud 8 is formed by connecting the threaded part 12 and the cylindrical part 13. The outer diameter of the cylindrical part 13 is greater than the width of the long groove 9, and the through hole 14 The diameter of the set stud 8 is not less than the outer diameter of the cylindrical part 13. In addition, in order to facilitate tightening the set stud 8 on the connecting seat 3, it is also possible to install a horizontal and vertical clamp on the cylindrical part 13 of the set stud 8. The fixed piece 15, the fixed piece 15 is located in the slot on the upper end of the cylindrical part 13, the pin shaft is installed in the slot, the fixed piece 15 is provided with a slot matching the pin shaft, and the pin shaft is located in the tight The slotted hole on the fixed piece 15 plays an anti-falling effect, and the fixed piece 15 may not be installed during specific implementation but realizes the rotation operation of the fixed stud 8 by an auxiliary tool during use. Similarly, the shape of the end pull plate 11 can also have various forms, and Fig. 2, 3, 4 are only several commonly used forms, what Fig. 2 shows is a solid curved plate structure, and Fig. 3 shows a groove The arc-shaped plate structure, as shown in Figure 4, is an arc-shaped frame structure made of stainless steel wires. Its purpose is the same as that of the side pull plate, and it should be used in conjunction with it.

In addition, in order to position and fix the end pull plate, guiding and positioning bosses 25 are respectively provided on the connecting seat 3 and both sides of the fixing stud 8 .

The using method of the present invention is:

First, select the appropriate side hook plate 6 to fit on the horn 5, align the anti-rotation boss 20 in the insertion hole 19 of the side pull plate 6 with the slot 21 on the horn 5, and move it to a suitable position Then if you need to install the end hook plate 7, you can first move the fastening piece 15 on the top of the set stud 8 to the state consistent with its axis, and then align the through hole 14 on the end hook plate 7 with the tight The fixed piece 15 makes it fall onto the surface of the connecting seat 3 and is located between the two guiding and positioning bosses 25, then moves the fixing strip 10 in the end hook plate 7 to a suitable position, and then operates the tightening piece 15 to drive the tightening The stud 8 rotates, and the end surface of the cylindrical portion 13 is used to press the fixing bar 10 so as to be fixed on the connecting seat 10 . After the surgical incision is opened, the retractor of the present invention is placed at the incision position of the patient's lower abdomen, and the side hook plate and the end hook plate (if necessary) are placed in the incision by hand, and finally the handle 24 is turned to drive the amplitude modulation bolt 2 to rotate , the amplitude adjustment bolt 2 pushes the connecting seat to move away from the bottom of the U-shaped bracket 1, thereby exerting a force on the end of the short rod of the horn 5, forcing the horn 5 to circle the pivot axis of the straight end of the U-shaped bracket 16 rotates, so that the distance between the two horns 5 increases, and the horn 5 drives the side hook plate 6 to move when the horn 5 is opened, and the side hook plate 6 opens the cutout. After the operation, the reverse operation can be removed for disinfection.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (7)

1. a lower abdomen retractor, comprising a U-shaped support (1) and a horn (5) formed by linking long rods and short rods, characterized in that the bottom of the U-shaped support (1) The amplitude modulation bolt (2) is spun, and one end of the amplitude modulation bolt (2) located in the U-shaped bracket (1) is set on a connecting seat (3) and can drive the connecting seat (3) to move back and forth, and the connecting seat (3) ) is respectively installed with a first pivot (4), the first pivot is sleeved in the pivot slot (22) at the end of the short rod of the horn (5), in the U-shaped bracket (1) A second pivot (16) is respectively installed on the two straight tops of the horn, and the second pivot (16) is sleeved in the pivot hole (23) at the corner of the horn (5); A detachable side hook plate (6) is also installed on the long pole of the web pole (5). 2. The lower abdomen retractor according to claim 1, characterized in that a tightening stud (8) for fixing the hook plate (7) at the end is also installed on the connecting seat (3). The hook plate (7) is composed of a fixed strip (10) and an end pull plate (11). The fixed strip (10) is provided with a long groove (9) and a through hole (14) connected with the long groove (9). The plate (11) is hingedly connected with the fixing bar (10); the fastening stud (8) is formed by connecting a threaded part (12) and a cylindrical part (13), and the outer diameter of the cylindrical part (13) is larger than the length The width of the groove (9), the diameter of said through hole (14) is not smaller than the outer diameter of the cylindrical part (13). 3. The lower abdomen retractor according to claim 2, characterized in that the upper end of the cylindrical part (13) is equipped with a tightening piece (15) for rotating the tightening stud (8). 4. The hypogastric retractor according to claim 2, characterized in that the end pull plate (11) is a solid arc plate, a grooved arc plate or an arc frame bent from stainless steel wire . 5. The lower abdomen retractor according to claim 1, characterized in that the side hook plate (6) is made up of a side pull plate (17) and a suit block (18), and the side draw plate (17) and the suit Blocks (18) are hingedly connected, and a socket (19) matching the long rod of the horn (5) is provided on the set block (18), and an anti-rotation protrusion (19) is provided in the socket (19). 20), a groove (21) matched with the anti-rotation protrusion (20) is provided on the long rod of the horn (5). 6. The lower abdomen retractor according to claim 5, characterized in that the side pull plate (17) is a solid arc plate, a grooved arc plate or an arc frame bent from stainless steel wire . 7. The lower abdominal retractor according to claim 1, characterized in that said amplitude-adjusting bolt (2) is provided with a handle (24) on one end outside the bottom of the U-shaped bracket (1).

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