CN212816396U - Tumor resection auxiliary device - Google Patents
Tumor resection auxiliary device Download PDFInfo
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- CN212816396U CN212816396U CN202020379111.9U CN202020379111U CN212816396U CN 212816396 U CN212816396 U CN 212816396U CN 202020379111 U CN202020379111 U CN 202020379111U CN 212816396 U CN212816396 U CN 212816396U
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Abstract
The utility model discloses a tumour excision auxiliary device belongs to medical equipment technical field. The tumor resection assistance device comprises: the device comprises a contraction ring, a sheath, a pull rod, a spring, a first handle and a second handle; the pull rod is slidably disposed within the outer sheath; two ends of the contraction ring penetrate through the outer sheath and are fixedly connected with the first end of the pull rod; the first handle is fixedly connected with the second end of the pull rod; the second handle is fixedly connected with the end of the outer sheath facing away from the contraction ring; the first end of the spring is fixedly connected with the first handle, and the second end of the spring is fixedly connected with the second handle. The utility model discloses the blood supply of ectogenesis type kidney small tumour side can reliably be blocked to the tumour excision auxiliary device, need not block the renal artery, can not wholly cause the warm ischemia to the kidney, and the minimizing influences kidney function and can not lead to the fact obvious extrusion damage to kidney tissue, and protection renal function lowers and sews up the degree of difficulty, increases the operation security.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to auxiliary device for tumor resection.
Background
With the progress of the image diagnosis technology, more and more early-stage renal tumors are discovered, the tumor bodies of the parts are small, and the outburst rate is high. Nephron-sparing surgery (NSS) is the primary treatment modality for early stage renal cancers, with laparoscopic partial nephrectomy being the most widely performed. Negative margin, minimal injury to renal function and no occurrence of urologic complications are the three key goals of laparoscopic nephrectomy, where renal function protection plays an extremely important role.
Laparoscopic partial nephrectomy in order to reduce bleeding and maintain a clear view when removing a tumor and incisal border sutures, the renal artery must be blocked during the procedure, resulting in thermal ischemia of the entire kidney. Studies have shown that Warm Ischemia Time (WIT) is the major factor in causing short and long term renal function impairment after surgery, with approximately 6% increase in the risk of renal function impairment for every 1min extension of warm ischemia time.
At present, some surgical techniques such as a renal segment artery blocking technique (SRAC) and a renal artery branch vessel microdisolation technique are used for blocking by separating and exposing a renal three-four-level blood supply vessel, so that the range of thermal ischemia is reduced, but the surgical difficulty, the surgical risk and the postoperative blood transfusion rate are obviously increased, and the development of the surgery is limited. In the prior art, there is no instrument suitable for laparoscopic kidney surgery that can reliably stop bleeding at the tumor resection site without blocking the blood supply to the whole kidney.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tumour resection auxiliary device has solved or has partially solved and has not been fit for among the prior art in the peritoneoscope kidney operation art, can make the reliable hemostasis in tumour resection position and need not block the technical problem of the apparatus of whole kidney blood confession again.
In order to solve the technical problem, the utility model provides a tumour excision auxiliary device includes: the device comprises a contraction ring, a sheath, a pull rod, a spring, a first handle and a second handle; the pull rod is slidably disposed within the outer sheath; two ends of the contraction ring penetrate through the outer sheath and are fixedly connected with the first end of the pull rod; the first handle is fixedly connected with the second end of the pull rod; the second handle is fixedly connected with the end of the outer sheath facing away from the contraction ring; the first end of the spring is fixedly connected with the first handle, and the second end of the spring is fixedly connected with the second handle.
Furthermore, a connecting column is fixedly arranged at the end part of the outer sheath, which is far away from the second handle; and two ends of the contraction ring penetrate through the connecting column and are fixedly connected with the pull rod.
Furthermore, the contraction ring is wrapped with rubber tissues.
Further, the first handle is slidably disposed within the outer sheath.
Furthermore, a through groove is formed in the position, close to the second handle, of the outer sheath; the first handle is slidably disposed within the through slot.
Further, the second handle forms a U-shaped slot with the first handle; the spring is disposed within the recess.
Further, the tumor resection assistance device further comprises: a locking mechanism; the locking mechanism is respectively connected with the first handle and the second handle.
Further, the locking mechanism includes: a first rack and a second rack; the first rack is fixedly connected with the first handle; the second rack is connected with the second handle in a lockable manner; the first rack may be engaged with the second rack.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the pull rod is arranged in the sheath in a sliding way, two ends of the contraction ring penetrate through the sheath and are fixedly connected with the first end of the pull rod, the first handle is fixedly connected with the second end of the pull rod, the second handle is fixedly connected with the end part of the sheath, which deviates from the contraction ring, the first end of the spring is fixedly connected with the first handle, and the second end of the spring is fixedly connected with the second handle, when abdominal cavity or back cavity laparoscopic surgery is carried out, after a puncture cannula (Trocar) is punctured successfully, pneumoperitoneum is established, adipose tissues around the kidney are dissociated, tumors are exposed, the first handle and the second handle are pinched, the spring is compressed, the pull rod is pulled by the first handle to slide in the sheath, the contraction ring is pulled by the pull rod to retract, the contraction ring is placed into the sheath along the long axis to reach the kidney part through the puncture cannula, the first handle and the second handle are loosened, the first handle is pushed under the, first hand push pull rod slides in the sheath, promote shrink ring through the pull rod, make shrink ring expansion, make shrink ring cover in the kidney, pinch the first in command and second in command, compression spring, first in command pulling pull rod slides in the sheath, through pull rod pulling shrink ring, make shrink ring retract, it has purple change to shrink ring to tighten up and block distal end kidney colour, can carry out the tumour excision, can reliably block the blood supply of exogenous type kidney little tumour side, need not block the renal artery, can not lead to the fact ischemia to the kidney is whole, the minimizing influences renal function and can not lead to the fact obvious extrusion damage to the kidney tissue, protect the renal function, reduce the degree of difficulty of sewing up, increase operation safety.
Drawings
Fig. 1 is a schematic structural view of the tumor resection auxiliary device provided by the embodiment of the present invention.
Detailed Description
Referring to fig. 1, an embodiment of the present invention provides an auxiliary device for tumor resection, including: the sheath comprises a contraction ring 1, a sheath 2, a pull rod 3, a spring 4, a first handle 5 and a second handle 6.
The pull rod 3 is slidably disposed within the outer sheath 2.
Two ends of the contraction ring 1 penetrate through the outer sheath 2 and are fixedly connected with a first end of the pull rod 3.
The first handle 5 is fixedly connected with the second end of the pull rod 3.
The second handle 6 is fixedly connected to the end of the sheath 2 facing away from the shrink ring 1.
The first end of the spring 4 is fixedly connected with the first handle 5, and the second end of the spring 4 is fixedly connected with the second handle 6.
In the embodiment of the application, because the pull rod 3 is slidably arranged in the sheath 2, two ends of the shrink ring 1 penetrate through the sheath 2 and are fixedly connected with a first end of the pull rod 3, the first handle 5 is fixedly connected with a second end of the pull rod 3, the second handle 6 is fixedly connected with an end of the sheath 2 departing from the shrink ring 1, a first end of the spring 4 is fixedly connected with the first handle 5, and a second end of the spring 4 is fixedly connected with the second handle 6, when abdominal cavity or posterior cavity laparoscopic surgery is performed, after a puncture cannula (Trocar) is successfully punctured, pneumoperitoneum is established, perirenal adipose tissues are dissociated, tumors are exposed, the first handle 5 and the second handle 6 are pinched, the spring 4 is compressed, the pull rod 3 is pulled by the first handle 5 to slide in the sheath 2, the shrink ring 1 is pulled by the pull rod 3, the shrink ring 1 is retracted, and is placed into the kidney part along the long shaft through the puncture sheath 2, the first handle 5 and the second handle 6 are released, the first handle 5 is pushed under the action of the restoring force of the spring 4, the first handle 5 pushes the pull rod 3 to slide in the sheath 2, the contraction ring 1 is pushed by the pull rod 3 to expand the contraction ring 1, the contraction ring 1 is sleeved on the kidney, the first handle 5 and the second handle 6 are pinched, the spring 4 is compressed, the first handle 5 pulls the pull rod 3 to slide in the sheath 2, the contraction ring 1 is pulled by the pull rod 3 to retract the contraction ring 1, the contraction ring 1 is tightened and blocks the purple change of the color of the kidney at the far end, can carry out the tumour excision, can reliably block the blood supply of exogenous type kidney little tumour side, need not block the renal artery, can not lead to the fact hot ischemia to the kidney is whole, and the minimizing influences kidney function and can not lead to the fact obvious extrusion damage to kidney tissue, protects the renal function, reduces and sews up the degree of difficulty, increases the operation security.
Wherein, shrink ring 1 is pliable and tough rigid metal material, can be the steel, guarantees the centre gripping effect after the shrink. The shrink ring 1 has a length of 38cm and a width of 0.2 cm.
In particular, the end of the sheath 2 facing away from the second handle 6 is fixedly provided with a connecting column 7. In this embodiment, the end of the sheath 2 facing away from the second handle 6 may be fixedly provided with a connection post 7 by bonding, wherein the connection post 7 is a rubber post, which not only increases the elasticity to ensure reliable blocking, but also avoids direct damage to the kidney tissue.
Two ends of the contraction ring 1 penetrate through the connecting column 7 to be fixedly connected with the pull rod 3. In the embodiment, two holes with a diameter of 0.2cm are formed on the connecting column 7, so that two ends of the shrink ring 1 can conveniently penetrate through the holes.
Specifically, the surface of the contraction ring 1 is wrapped with rubber tissues to reduce the damage to kidney tissues, so that the stress of the kidney blocking part is uniform, and the blood supply at the far end of the blocking part is obviously reduced. The surface of the rubber texture is smooth.
Specifically, the sheath 2 is coaxial with the pull rod 3, so that the pull rod 3 is free of resistance and moves smoothly.
In particular, a first handle 5 is slidably disposed within the outer sheath 2. A through groove is arranged at the position of the outer sheath 2 close to the second handle 6; the first handle 5 can be slidably arranged in the through groove, the first handle 5 is limited through the through groove, and the first handle 5 is prevented from shaking. Meanwhile, the thickness of the first handle 5 matches the width of the through groove.
A spring 4 is arranged within the outer sheath 2.
Specifically, the tumor resection assistance device further includes: and a locking mechanism 8.
The locking mechanism 8 is connected to the first handle 5 and the second handle 6, respectively.
The lock mechanism 8 includes: a first rack 8-1 and a second rack 8-2.
The first rack 8-1 is fixedly connected with the first handle 5. In the embodiment, the first rack 8-1 can be fixedly connected with the first handle 5 through a bolt, so that the assembly and disassembly are convenient.
The second rack 8-2 is lockably connected to the second handle 6. In this embodiment, the second handle 8-2 is provided with a first bolt hole, the second handle 6 is provided with a second bolt hole, and a bolt passes through the first bolt hole and the second bolt hole to be connected with a nut, so that the second rack 8-2 can be locked on the second handle 6 by screwing the bolt, or the second rack 8-2 can be rotated on the second handle 6 by unscrewing the bolt, and the position of the second rack 8-2 can be adjusted.
The first rack 8-1 may be engaged with the second rack 8-2.
When the kidney needs to be clamped by the contraction ring 1, the bolt is loosened, the position of the second rack 8-2 is adjusted, the second rack 8-2 is meshed with the first rack 8-1, then the bolt is screwed, and the second rack 8-2 is locked, so that the blocking reliability of the contraction ring 1 is ensured, and the labor is saved.
The first rack 8-1 can be fixed with the tooth mouth of the second rack 8-2, so that the first handle 5 and the second handle 6 do not need to be continuously pinched, and the labor is saved.
Meanwhile, the color of the contraction ring 1 and the sheath 2 is white, and is contrasted with the bright yellow of perirenal fat, the red and blue of renal pedicle blood vessels and the color of the ureter, so that the observation and the operation are convenient.
In order to more clearly describe the embodiment of the present invention, the following description is provided on the using method of the embodiment of the present invention.
When the abdominal cavity or the posterior cavity laparoscopic surgery is carried out, after the puncture of the puncture cannula is successful, pneumoperitoneum is established, the perirenal adipose tissues are dissociated, and the tumor is exposed. Free range: for the tumor with lower kidney pole, the free lower pole is more than 2cm from the upper edge of the tumor, and for the tumor with upper kidney pole, the free upper pole is more than 2cm from the lower edge of the tumor.
The first handle 5 and the second handle 6 are pinched, the spring 4 is compressed, the first handle 5 pulls the pull rod 3 to slide in the outer sheath 2, the contraction ring 1 is pulled by the pull rod 3, the contraction ring 1 is retracted, and the puncture sleeve is placed in the outer sheath 2 along the long shaft to reach the kidney part.
When the first handle 5 and the second handle 6 are released, the first handle 5 is pushed under the restoring force of the spring 4, the first handle 5 pushes the pull rod 3 to slide in the sheath 2, and the contraction ring 1 is pushed by the pull rod 3, so that the contraction ring 1 is expanded.
If the tumor is a kidney lower pole tumor, the contraction ring passes through the kidney lower pole and crosses the tumor to reach the kidney tissue above the upper edge of the tumor by 2 cm; in the case of suprarenal tumors, the contractile loops pass through the suprarenal pole, cross the tumor, and reach the renal tissue below the 2cm lower margin of the tumor.
The kidney is sleeved with the contraction ring 1, the first handle 5 and the second handle 6 are tightly pinched, the spring 4 is compressed, the pull rod 3 is pulled by the first handle 5 to slide in the sheath 2, the contraction ring 1 is pulled by the pull rod 3 to enable the contraction ring 1 to retract, the contraction ring 1 is tightened and blocks the color of the kidney at the far end, purple change can be achieved, tumor resection can be conducted, at the moment, the bolt is loosened firstly, the position of the second rack 8-2 is adjusted, the second rack 8-2 is meshed with the first rack 8-1, then the bolt is screwed, the second rack 8-2 is locked, the blocking reliability of the contraction ring 1 is guaranteed, and manpower is saved. Can reliably block the blood supply of the side of the exogenous kidney small tumor, does not need to block the renal artery, can not cause thermal ischemia to the whole kidney, can minimize the influence on the renal function, can not cause obvious extrusion injury to the renal tissue, protect the renal function, reduce the suture difficulty, increase the operation safety
The tumor is cut off by scissors, and the small bleeding point is subjected to electric coagulation for hemostasis. By the lifting and the rotation of the second handle 6, the wound surface is more suitable for the operation of needle in and out stitching, and the kidney wound surface is closed by stitching.
Firstly, loosening the bolt, adjusting the position of the second rack 8-2 to separate the second rack 8-2 from the first rack 8-1, observing the sealing surface without active bleeding, and taking out the contraction ring 1 and the sheath 2 through the puncture sleeve.
The utility model discloses the blood supply of ectogenesis type kidney small tumour side can reliably be blocked to tumour excision auxiliary device, need not block renal artery, and the minimizing influences renal function and can not cause obvious extrusion damage to kidney tissue, has effectively protected renal function, moreover, has reduced the degree of difficulty of sewing up of tumour excision surface of a wound, increases the security of performing the operation, and the solid organ tumour excision such as liver of also being applied to can be applied to open operation simultaneously at mainly used laparoscopic surgery.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (8)
1. A tumor resection assistance device, comprising: the device comprises a contraction ring, a sheath, a pull rod, a spring, a first handle and a second handle;
the pull rod is slidably disposed within the outer sheath;
two ends of the contraction ring penetrate through the outer sheath and are fixedly connected with the first end of the pull rod;
the first handle is fixedly connected with the second end of the pull rod;
the second handle is fixedly connected with the end of the outer sheath facing away from the contraction ring;
the first end of the spring is fixedly connected with the first handle, and the second end of the spring is fixedly connected with the second handle.
2. The tumor resection assistance device according to claim 1, wherein:
a connecting column is fixedly arranged at the end part of the outer sheath, which is far away from the second handle;
and two ends of the contraction ring penetrate through the connecting column and are fixedly connected with the pull rod.
3. The tumor resection assistance device according to claim 1, wherein:
the surface of the contraction ring is wrapped with a rubber tissue.
4. The tumor resection assistance device according to claim 1, wherein:
the outer sheath is coaxial with the pull rod.
5. The tumor resection assistance device according to claim 1, wherein:
the first handle is slidably disposed within the outer sheath.
6. The tumor resection assistance device according to claim 5, wherein:
a through groove is formed in the position, close to the second handle, of the outer sheath;
the first handle is slidably disposed within the through slot.
7. The tumor resection assistance device of claim 1, further comprising: a locking mechanism;
the locking mechanism is respectively connected with the first handle and the second handle.
8. The tumor resection assistance device of claim 7, wherein the locking mechanism comprises: a first rack and a second rack;
the first rack is fixedly connected with the first handle;
the second rack is connected with the second handle in a lockable manner;
the first rack may be engaged with the second rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020379111.9U CN212816396U (en) | 2020-03-23 | 2020-03-23 | Tumor resection auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020379111.9U CN212816396U (en) | 2020-03-23 | 2020-03-23 | Tumor resection auxiliary device |
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| Publication Number | Publication Date |
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| CN212816396U true CN212816396U (en) | 2021-03-30 |
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| CN202020379111.9U Active CN212816396U (en) | 2020-03-23 | 2020-03-23 | Tumor resection auxiliary device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116492099A (en) * | 2023-06-16 | 2023-07-28 | 昆明市第一人民医院 | Method for establishing rat tree shrew xenogeneic in-situ liver transplantation model |
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2020
- 2020-03-23 CN CN202020379111.9U patent/CN212816396U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116492099A (en) * | 2023-06-16 | 2023-07-28 | 昆明市第一人民医院 | Method for establishing rat tree shrew xenogeneic in-situ liver transplantation model |
| CN116492099B (en) * | 2023-06-16 | 2023-09-15 | 昆明市第一人民医院 | Bile duct puncture outfit for rat tree shrew xenogeneic in-situ liver transplantation |
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Effective date of registration: 20210819 Address after: 100144 building 1-63, Shougang Hospital, Xihuang village, Shijingshan District, Beijing Patentee after: Shougang Hospital Co.,Ltd. Address before: 100144 No.9, jinyuanzhuang Road, Shijingshan District, Beijing Patentee before: PEKING UNIVERSITY SHOUGANG Hospital |