CN116763370A - Traction device for spinal surgery - Google Patents

Abstract

The invention relates to the technical field of medical devices, and specifically to a spinal surgery retraction device, which includes a retraction device and a fixation device. The retraction device includes a first handle, a second handle, a first expansion plate, a second expansion plate, and a connecting shaft. , upper tooth block and lower tooth block, the fixation device includes a base, a support block, a sliding block, a cross bar, a connecting rod and a fixation piece. The support block has a sliding groove; the retraction device is used to retract the muscle tissue near the spine to perform the surgery. The part is exposed, and the fixing device is used to fix and place the retractor device; the first handle and the second handle are used to drive the first expansion plate and the second expansion plate to open, squeeze the muscle tissue to both sides, and expose the spine and upper teeth. The block and the lower tooth block have the effect of preventing rebound, eliminating the need to hold the device after retraction. This solves the problem that the existing device requires the doctor to hold the hand when retracting the tissue, which hinders the doctor's subsequent surgery and makes the surgery more difficult. The problem.

Description

A spinal surgery retraction device

Technical field

The present invention relates to the technical field of medical devices, and in particular to a retraction device for spinal surgery.

Background technique

In current surgical operations, minimally invasive surgery has become a trend. Traditional surgical incisions are large, which makes postoperative recovery difficult, long and more susceptible to infection. However, minimally invasive surgery has small incisions and fast recovery, while greatly reducing the displacement requirements of muscle tissue. , but the disadvantage of minimally invasive surgery is that the small incision results in a small surgical field of view, and various tissues need to be retracted inside the body, especially for spinal surgery.

Some existing spinal surgery retraction devices are in the shape of retractor forceps. The doctor presses the handle and opens the front retractor device to both sides to achieve the retraction effect. However, this device requires the doctor to hold it in hand, which will cause problems for the patient. The doctor's next operation caused obstacles and made the operation more difficult.

Contents of the invention

The purpose of the present invention is to provide a retraction device for spinal surgery, aiming to solve the problem that the existing device requires the doctor to hold the device when retracting tissue, which hinders the doctor's subsequent surgery and increases the difficulty of the surgery.

In order to achieve the above object, the present invention provides a spinal surgery retraction device, which includes a retraction device and a fixation device. The fixation device is arranged on one side of the retraction device; the retraction device includes a first handle, A second handle, a first expansion plate, a second expansion plate, a connecting shaft, an upper tooth block and a lower tooth block. The connecting shaft is rotatably mounted on the first handle; the second handle is rotatably mounted on the connecting shaft. ; The first expansion plate is provided on one side of the first handle; the second expansion plate is provided on one side of the second handle; the upper tooth block is fixed on the first handle; the The lower tooth block is fixed on the second handle;

The fixing device includes a base, a support block, a sliding block, a cross bar, a connecting rod and a fixing piece. The support block has a sliding groove; the base is provided on one side of the first handle; the support block is fixed on On the base; the sliding block is slidably mounted on the support block; the cross bar is fixed on the sliding block; the connecting bar is fixedly connected to the cross bar and is fixedly connected to the connecting shaft ; The fixing piece is fixed on the sliding block.

Wherein, the retraction device also includes two extension rods and two L-shaped connecting blocks, the two extension rods are respectively fixed on the first handle and the second handle; the two L-shaped connection blocks The block is fixedly connected to the two extension rods respectively, and is fixedly connected to the first expansion plate and the second expansion plate respectively.

Wherein, the fixing member includes a sliding rod, a fixed block, a spring and a pressing barrel, and the supporting block also has a sawtooth groove; the sliding rod is fixed on the sliding block; the fixed block is slidably installed on the sliding rod. on; the spring is fixedly connected to the fixed block and fixedly connected to the sliding rod; the pressing tube is fixed on the fixed block.

Wherein, the fixing member further includes a handle, which is fixed on the sliding rod.

Wherein, the fixing device further includes a reinforcing plate, which is fixedly connected to the base and fixedly connected to the support block.

Wherein, the spinal surgery retraction device further includes a flashlight and a placement frame, the placement frame is fixed on the cross bar, and the flashlight is arranged in the placement frame.

Wherein, the placement frame includes a first clamping ring, a second clamping ring and a fixing bolt. The first clamping ring is fixed on the crossbar; the second clamping ring is fixed on the crossbar. On; the fixing bolt is threadedly connected to the first clamping ring, and is threadedly connected to the second clamping ring.

A spinal surgery retraction device of the present invention, the retraction device is used to retract the muscle tissue near the spine to expose the surgical site, and the fixing device is used to fix and place the retraction device; the first The handle and the second handle are connected through the connecting shaft, and both have the ability to rotate. The first expansion plate and the second expansion plate are used to squeeze the muscle tissue to both sides to expose the hand parts; The upper tooth block and the lower tooth block are used to fix the first handle and the second handle;

The base provides support for the whole, and the support block is erected on the base; the sliding block can slide up and down relative to the supporting block, and the cross bar and the connecting rod are used to connect the sliding block and the The connecting shaft fixes the entire retracting device on the sliding block; the fixing member is used to fix the sliding block at all times;

When using this device to perform spinal surgery retraction on a patient, place the base on the side of the patient's body, close the first expansion plate and the second expansion plate at the wound, and press the fixing member. Allow the sliding block to slide downward, extend the first expansion plate and the second expansion plate into the patient's body, then loosen the fixing piece, fix the sliding block, and then hold the third expansion plate. Squeeze the outside of one handle and the second handle inward to drive the first expansion plate and the second expansion plate to open, squeeze the muscle tissue of the surgical site to both sides, and expose the spine. When the first handle and the second handle are squeezed inward, the upper tooth block and the lower tooth block gradually mesh, and achieve the effect of preventing rebound, and the first expansion plate and the third The second expansion plate is fixed; it eliminates the need to hold the device after retraction, thereby solving the problem that the existing device requires the doctor to keep holding the device when retracting the tissue, which hinders the doctor's subsequent surgery and makes the surgery more difficult.

Description of drawings

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to describe the embodiments or the prior art will be briefly introduced below.

Figure 1 is a schematic structural diagram of a spinal surgery retraction device from a first perspective according to the first embodiment of the present invention.

Figure 2 is a schematic structural diagram of a spinal surgery retraction device from a second perspective according to the first embodiment of the present invention.

Figure 3 is a cross-sectional view of a spinal surgery retraction device according to the first embodiment of the present invention.

Figure 4 is a schematic structural diagram of a spinal surgery retraction device according to the second embodiment of the present invention.

Figure 5 is a partial enlarged view of detail A of a spinal surgery retraction device according to the second embodiment of the present invention.

Figure 6 is a schematic structural diagram of a spinal surgery retraction device according to the third embodiment of the present invention.

Fig. 7 is a cross-sectional view based on the buckle of a spinal surgery retraction device according to the third embodiment of the present invention.

101-first handle, 102-second handle, 103-first expansion plate, 104-second expansion plate, 105-connecting shaft, 106-upper tooth block, 107-lower tooth block, 108-base, 109-support Block, 110-sliding block, 111-cross bar, 112-connecting rod, 113-fixed piece, 114-sliding groove, 115-extension rod, 116-L-shaped connecting block, 117-sliding rod, 118-fixed block, 119 -Spring, 120-press cylinder, 121-serrated groove, 122-grip, 123-reinforcement plate, 201-flashlight, 202-placement stand, 203-first clamping ring, 204-second clamping ring, 205- Fixing bolts, 301-silica gel sleeve, 302-buckle, 303-card slot, 304-placement box, 305-connection frame.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and are not to be construed as limiting the present invention.

First embodiment

Please refer to Figures 1 to 3. Figure 1 is a schematic structural diagram of a spinal surgery retraction device according to the first embodiment of the present invention from a first perspective; Figure 2 is a spinal surgery retraction device according to the first embodiment of the present invention. A schematic structural view of the opening device from a second perspective; Figure 3 is a cross-sectional view of a spinal surgery retraction device according to the first embodiment of the present invention.

The present invention provides a retraction device for spinal surgery: it includes a retraction device and a fixation device. The retraction device includes a first handle 101, a second handle 102, a first expansion plate 103, a second expansion plate 104, and a connecting shaft 105. , upper tooth block 106, lower tooth block 107, two extension rods 115 and two L-shaped connecting blocks 116. The fixing device includes a base 108, a support block 109, a sliding block 110, a cross bar 111, a connecting rod 112, a fixed The fixing part 113 includes a sliding rod 117, a fixing block 118, a spring 119, a pressing barrel 120 and a grip 122. The supporting block 109 has a sliding groove 114 and a serrated groove 121.

The foregoing solution solves the problem that the existing device requires the doctor to hold the hand when retracting the tissue, which hinders the doctor's subsequent surgery and makes the operation more difficult. It is understandable that the foregoing solution can automatically lock after retracting the muscle tissue. It avoids rebound and can also be fixed on one side of the patient's body to prevent the doctor from holding it for a long time.

In this embodiment, the fixation device is arranged on one side of the retraction device; the retraction device is used to retract the muscle tissue near the spine to expose the surgical site, and the fixation device is used to fix and place The retraction device; the connecting shaft 105 is rotatably provided on the first handle 101; the second handle 102 is rotatably provided on the connecting shaft 105; the first expansion plate 103 is provided on the first handle 101; the second expansion plate 104 is provided on one side of the second handle 102; the upper tooth block 106 is fixed on the first handle; the lower tooth block 107 is fixed on the second On the handle; the first handle 101 and the second handle 102 are connected through the connecting shaft 105, and both have the ability to rotate. The first expansion plate 103 and the second expansion plate 104 are used to connect the muscles. The tissue is squeezed to both sides, exposing parts of the hand; the upper tooth block 106 and the lower tooth block 107 are used to fix the first handle 101 and the second handle 102 .

The base 108 is provided on one side of the first handle 101; the support block 109 is fixed on the base 108; the sliding block 110 is slidably installed on the support block 109; the cross bar 111 is fixed On the sliding block 110; the connecting rod 112 is fixedly connected to the cross bar 111, and is fixedly connected to the connecting shaft 105; the fixing member 113 is fixed on the sliding block 110; the base 108 To provide support for the whole, the support block 109 is erected on the base 108; the sliding block 110 can slide up and down relative to the supporting block 109, and the cross bar 111 and the connecting rod 112 are used to connect the sliding block 110. The block 110 and the connecting shaft 105 fix the entire retraction device on the sliding block 110; the fixing member 113 is used to fix the sliding block 110 at all times.

Among them, the two extension rods 115 are respectively fixed on the first handle 101 and the second handle 102; the two L-shaped connecting blocks 116 are respectively fixedly connected to the two extension rods 115, and are respectively It is fixedly connected to the first expansion plate 103 and the second expansion plate 104; the extension rod 115 is used to extend the length of the first handle 101 and the second handle 102 so that their expanded position is away from the connection. The shaft 105 and the crossbar 111 are to avoid interfering with the operation; the L-shaped connecting block 116 is used to connect the extension rod 115 and the first expansion plate 103, and its L-shaped design can reduce the expansion of surface wounds.

Secondly, the sliding rod 117 is fixed on the sliding block 110; the fixed block 118 is slidably installed on the sliding rod 117; the spring 119 is fixedly connected to the fixed block 118 and is connected to the sliding rod. 117 is fixedly connected; the pressing tube 120 is fixed on the fixed block 118; the sliding rod 117 is used to install the fixed block 118, and the fixed block 118 keeps popping up under the action of the spring 119 and is stuck in the serrated groove 121 of the support block 109, thereby locking the sliding block 110; when it is necessary to adjust and slide the sliding block 110, press the pressing barrel 120 and push out the fixed block 118. Complete unlocking.

Thirdly, the handle 122 is fixed on the sliding rod 117; the handle 122 is laterally fixed on the sliding rod 117, which can not only conveniently press the pressing tube 120, but also facilitate force receiving, and drive the entire The sliding block 110 slides up and down.

Finally, the reinforcing plate 123 is fixedly connected to the base 108 and to the support block 109; the reinforcing plate 123 is used to reinforce the connection between the support block 109 and the base 108 and prevent it from moving towards the base 108. One side of the crossbar 111 is inclined.

When using this device to perform spinal surgery on a patient, place the base 108 on the side of the patient's body, close the first expansion plate 103 and the second expansion plate 104 at the wound, and press the Press the barrel 120 to push the fixed block 118 out of the sawtooth groove 121, so that the sliding block 110 can slide downward, and the first expansion plate 103 and the second expansion plate 104 can be extended into the patient's body. , and then release the pressing tube 120. Under the action of the spring 119, the fixed block 118 is stuck into the sawtooth groove 121 again, fixing the sliding block 110, and then holding the first handle 101 and the outside of the second handle 102, squeeze it inward, drive the first expansion plate 103 and the second expansion plate 104 to open, squeeze the muscle tissue of the surgical site to both sides, and expose spine, when the first handle 101 and the second handle 102 are squeezed inward, the upper tooth block 106 and the lower tooth block 107 gradually mesh, and achieve the effect of preventing rebound, and the first The expansion plate 103 and the second expansion plate 104 are fixed; there is no need to hold the device after retraction, thereby solving the problem that the existing device requires the doctor to keep the hand held when retracting the tissue, which hinders the doctor's subsequent operation and makes the operation difficult. Improve the problem.

Second embodiment

Please refer to Figures 4 and 5. Figure 4 is a schematic structural diagram of a spinal surgery retraction device according to the second embodiment of the present invention; Figure 5 is a detail of a spinal surgery retraction device according to the second embodiment of the present invention. Magnified view of part of A.

Based on the first embodiment, a spinal surgery retraction device of the present invention also includes a flashlight 201 and a placement frame 202. The placement frame 202 includes a first clamping ring 203, a second clamping ring 204 and a fixing bolt. 205.

The placement rack 202 is fixed on the crossbar 111, and the flashlight 201 is set in the placement rack 202; the placement rack 202 is used to place the flashlight 201, and the flashlight 201 shines directly from above the surgical wound. When inserted into the patient's body, it is convenient for doctors to observe the internal conditions.

The first clamping ring 203 is fixed on the cross bar 111; the second clamping ring 204 is fixed on the cross bar 111; the fixing bolt 205 and the first clamping ring 203 are threadedly connected. , and is threadedly connected to the second clamping ring 204; there is a certain distance between the first clamping ring 203 and the second clamping ring 204, so that the flashlight 201 can be flexibly placed. When the flashlight 201 is placed After inserting, tighten the fixing bolt 205 to clamp the first clamping ring 203 and the second clamping ring 204, thereby achieving the effect of fixing the flashlight 201.

Third embodiment

Please refer to Figures 6 and 7. Figure 6 is a schematic structural diagram of a spinal surgery retraction device according to the third embodiment of the present invention; Figure 7 is a spinal surgery retraction device based on the third embodiment of the present invention. Cross-sectional view of the buckle.

Based on the second embodiment, a spinal surgery retraction device of the present invention also includes a silicone sleeve 301, a buckle 302, a placement box 304 and a connecting frame 305. The L-shaped connecting block 116 has a slot 303.

The silicone sleeve 301 is arranged on one side of the L-shaped connecting block 116; the buckle 302 is fixed on the silicone sleeve 301; the silicone sleeve 301 is locked into the slot 303 through the buckle 302 , rapid fixation is completed and can be quickly disassembled. The silicone sleeve 301 is used to reduce contamination to the patient's body and can be quickly disassembled for disinfection and sterilization.

The connecting frame 305 is fixed below the cross bar 111; the placing box 304 is fixed on the connecting frame 305; the connecting frame 305 is used to connect and fix the placing box 304, and the placing box 304 can Temporarily place some medical equipment to increase the functional diversity of the device.

What is disclosed above is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the present invention. Those of ordinary skill in the art can understand all or part of the processes for implementing the above embodiments and according to the rights of the present invention. Equivalent changes to the requirements still fall within the scope of the invention.

Claims (7)

1. A spinal surgery retractor is characterized in that,

the device comprises a retracting device and a fixing device, wherein the fixing device is arranged on one side of the retracting device; the retractor device comprises a first handle, a second handle, a first expansion plate, a second expansion plate, a connecting shaft, an upper tooth block and a lower tooth block, wherein the connecting shaft is rotatably arranged on the first handle; the second handle is rotatably arranged on the connecting shaft; the first expansion plate is arranged on one side of the first handle; the second expansion plate is arranged on one side of the second handle; the upper tooth block is fixed on the first handle; the lower tooth block is fixed on the second handle;

the fixing device comprises a base, a supporting block, a sliding block, a cross rod, a connecting rod and a fixing piece, wherein the supporting block is provided with a sliding groove; the base is arranged on one side of the first handle; the supporting block is fixed on the base; the sliding block is slidably arranged on the supporting block; the cross rod is fixed on the sliding block; the connecting rod is fixedly connected with the cross rod and the connecting shaft; the fixing piece is fixed on the sliding block.

2. A spinal surgical retractor device as recited in claim 1, wherein,

the retractor device further comprises two extension rods and two L-shaped connecting blocks, wherein the two extension rods are respectively fixed on the first handle and the second handle; the two L-shaped connecting blocks are fixedly connected with the two extension rods respectively and are fixedly connected with the first expansion plate and the second expansion plate respectively.

3. A spinal surgical retractor device as recited in claim 2, wherein,

the fixing piece comprises a sliding rod, a fixing block, a spring and a pressing cylinder, and the supporting block is also provided with a saw tooth slot; the sliding rod is fixed on the sliding block; the fixed block is slidably arranged on the sliding rod; the spring is fixedly connected with the fixed block and the sliding rod; the pressing cylinder is fixed on the fixed block.

4. A spinal surgical retractor device as recited in claim 3, wherein,

the fixing piece further comprises a handle, and the handle is fixed on the sliding rod.

5. A spinal surgical retractor device as recited in claim 4, wherein,

the fixing device further comprises a reinforcing plate, wherein the reinforcing plate is fixedly connected with the base and fixedly connected with the supporting block.

6. A spinal surgical retractor device as recited in claim 5, wherein,

the traction equipment for the spine surgery further comprises a flashlight and a placing frame, wherein the placing frame is fixed on the cross rod, and the flashlight is arranged in the placing frame.

7. A spinal surgical retractor device as recited in claim 6, wherein,

the rack comprises a first clamping ring, a second clamping ring and a fixing bolt, and the first clamping ring is fixed on the cross rod; the second clamping ring is fixed on the cross rod; the fixing bolt is in threaded connection with the first clamping ring and in threaded connection with the second clamping ring.