CN218279710U

CN218279710U - Auxiliary instrument for laparoscopic surgery

Info

Publication number: CN218279710U
Application number: CN202221719532.7U
Authority: CN
Inventors: 谢青宁
Original assignee: CHONGQING SHAPINGBA DISTRICT PEOPLE'S HOSPITAL
Current assignee: CHONGQING SHAPINGBA DISTRICT PEOPLE'S HOSPITAL
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-01-13
Anticipated expiration: 2032-06-29

Abstract

The utility model relates to the technical field of medical equipment, in particular to an auxiliary instrument for laparoscopic surgery, which comprises an outer sheath, and a handle and a drag hook which are respectively connected with the two ends of the outer sheath, wherein a sliding part is connected in the outer sheath, and one end of the drag hook is hinged on the sliding part; the retractor comprises a plurality of retractor bodies, and the retractor bodies are connected in the sheath in a sliding manner through sliding parts and can extend out of the sheath to form a sector covering area; the handle is positioned on one side of the upper sliding part of the sheath, which is far away from the drag hook body, and can push the sliding part to slide. Through the technical scheme of the utility model, when can solving the tissue contact such as nipper front end and intestines tube, because the area of contact of its front end and tissues such as intestines tube is little, lead to relatively more difficult when arranging the intestines tube and expose the pelvic cavity, can not expose the operation field of vision completely for the doctor operates the problem of relatively more difficulty.

Description

Auxiliary instrument for laparoscopic surgery

Technical Field

The utility model relates to the technical field of medical equipment, specifically a supplementary instrument is used in laparoscopic surgery.

Background

At present, with the development of minimally invasive technology, traditional open surgery is gradually replaced by laparoscopic surgery, which refers to endoscopic surgery operation for examination or treatment in a closed pelvic cavity and an abdominal cavity, and the pelvic cavity is formed into an operation space by injecting carbon dioxide into the pelvic cavity, and a puncture outfit is inserted into the pelvic cavity through umbilical incision; placing the laparoscope connected with the cold light source for illumination into the abdominal cavity, connecting a camera system to display the pelvic organ on a monitoring screen, and checking and diagnosing diseases through the screen; the puncture outfit is operated in vitro, the surgical instruments enter the pelvic cavity, and the screen is viewed directly to carry out surgical treatment on diseases.

In a conventional open operation, the surgical field can be exposed more fully by means of instruments such as two hands or a draw hook, but in the laparoscopic operation process, the laparoscopic operation space is relatively small, when a patient with a high body weight-to-fat ratio, particularly a patient with an obese body type, the patient is accumulated in the abdominal omentum, intestinal canal and the like, and the surgical field is not easily exposed, so that a better surgical field can be provided for a doctor in the operation process, the exposed pelvic cavities such as the intestinal canal and the like can be opened by using a grasping forceps, but the front end of the existing grasping forceps is in a shape similar to a scissors formed by crossing two straight lines, when the straight lines are contacted with tissues such as the intestinal canal and the like, on one hand, the contact area is easy to slide, on the other hand, the contact area is small, the existing grasping forceps is difficult to open when the intestinal canal is opened to expose the pelvic cavity, the surgical field cannot be completely exposed, and the operation of the doctor is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model provides an auxiliary instrument for laparoscopic surgery can solve when tissues such as nipper front end and intestines tube contact, because the area of contact of tissues such as its front end and intestines tube is little, leads to arranging that the intestines tube exposes more difficulty when the pelvis, can not expose the operation field of vision completely for the doctor operates the more difficult problem of getting up.

The application provides the following technical scheme:

an auxiliary instrument for laparoscopic surgery comprises an outer sheath, and a handle and a drag hook which are respectively connected to two ends of the outer sheath, wherein a sliding part is connected in the outer sheath, and one end of the drag hook is hinged on the sliding part; the retractor comprises a plurality of retractor bodies, and the retractor bodies are connected in the sheath in a sliding manner through sliding parts and can extend out of the sheath to form a sector-shaped covering area; the handle is positioned on one side of the upper sliding part of the sheath, which is far away from the drag hook body.

The beneficial effect of this scheme lies in:

compare in prior art, the area of contact of tissues such as drag hook and intestines tube increases relatively, and the intestines tube of row that can be more abundant exposes the operation field of vision for doctor's operation is more convenient: the technical scheme of the utility model through set the drag hook to a plurality of drag hook body, and pass through sliding part sliding connection with the drag hook body in the epitheca and the fan-shaped coverage area of drag hook body protractile epitheca formation, when using, the handheld handle of medical personnel promotes the sliding part, make the drag hook body stretch out the epitheca, form fan-shaped coverage area, and then make the area that the drag hook covered when the intestines tube is opened to the row can be broader, make can be with the better row's of intestines tube division, expose more operation fields of vision, the doctor of being convenient for more operates.

Furthermore, one end of the drag hook body close to the sheath is provided with a spreading spring.

By adopting the technical scheme, the expanding spring is arranged at one end of the drag hook body close to the sheath, when the drag hook body is pushed out of the sheath, the drag hook body can be automatically expanded to form the sector-shaped coverage area, and the drag hook is more convenient; when the retractor body is pulled back to the sheath, the spring is compressed, and the retraction of the retractor body is not influenced.

Furthermore, one end of the drag hook body, which is far away from the sheath, is bent downwards to form an arc shape, and the bent part is in arc transition.

By adopting the technical scheme, the bent arc can better pull the intestinal canal, and medical staff can more conveniently discharge the intestinal canal; and the bending part is in arc transition, so that the intestinal canal can be prevented from being scratched.

Furthermore, the number of the drag hook bodies is 3-4.

By adopting the technical scheme, the use is more convenient, if the number of the drag hook bodies is less than 3, the area covered by the drag hook is insufficient, so that the intestinal canal cannot be well arranged, and the operation visual field cannot be fully exposed; if the drag hook body is more than 4, the drag hook body is not easy to be arranged in the sheath, the cost is too high, and the drag hook body is too many and inconvenient to operate when in use.

Further, the sliding part comprises a push rod and a push block, the push rod is fixedly connected to the push block, and the push block is connected in the sheath in a sliding manner; the plurality of drag hook bodies are hinged at one end of the push rod far away from the push block.

By adopting the technical scheme, the drag hook body can be pushed out of the sheath and pulled back into the sheath.

Furthermore, a limiting protrusion is arranged in the sheath, a return spring is fixedly connected to the limiting protrusion, and the return spring is located between the limiting protrusion and the push block.

Adopt above-mentioned technical scheme, through set up spacing protruding in the sheath, and set up reset spring between spacing protruding and ejector pad, during the use, when promoting the ejector pad and release the sheath with the drag hook body, reset spring is compressed, and reset spring recovers after having used up, promotes the ejector pad toward the one end of keeping away from the drag hook body, and then makes when the drag hook body retracts the sheath more convenient. And through with spacing protruding and reset spring fixed connection, can prevent because of reset spring is less, unexpected when wasing loses.

Further, the handle comprises an upper handle, a lower handle and a connecting block, and the connecting block is connected to one end, far away from the retractor body, of the sheath; the lower handle is hinged in the connecting block, and one end of the lower handle close to the connecting block can be abutted against the push block when the lower handle is rotated; the upper handle is fixedly connected with the connecting block.

By adopting the technical scheme, the lower handle is hinged in the connecting block, the upper handle is fixedly connected with the connecting block, medical workers press the lower handle to rotate when holding the handle, one end of the lower handle close to the connecting block is abutted against the push block, and then the push block is pushed to slide in the sheath, so that the drag hook body can be pushed out of the sheath. After the retractor is used, medical staff only need to loosen the handle, so that the handle is free from extrusion force, the return spring in the sheath is restored, and the retractor body is pulled back into the sheath, thereby being very convenient.

Furthermore, the lower handle comprises a push rod and a lower handle body, an included angle is formed between the push rod and the lower handle body, and one end, far away from the lower handle body, of the push rod can abut against the push block when the lower handle is rotated.

By adopting the technical scheme, the push rod and the lower handle body are arranged by the lower handle, and the included angle is formed between the push rod and the lower handle body, so that the push rod and the lower handle body are not on the same horizontal plane, and the handle is held, and the push block can be pushed out more conveniently after the lower handle rotates.

Furthermore, the outer sheath comprises a left sheath and a right sheath, the left sheath and the right sheath are detachably connected, and the return spring is positioned at the joint of the left sheath and the right sheath; the handle is connected with one end of the right sheath far away from the left sheath.

By adopting the technical scheme, when the instrument is required to be disassembled for cleaning and disinfection, the left sheath and the right sheath can be separated, and the push rod, the push block and the like can be taken out for cleaning, so that the instrument is more convenient.

Furthermore, a torsional spring is arranged at the hinged position of the upper handle and the lower handle in the connecting block.

By adopting the technical scheme, when the medical personnel use up the apparatus, the lower handle can be propped open by loosening the hand under the action of the torsional spring, and the push rod is propped open quickly and can not be propped against the push block any more, so that the push block retracts more quickly and more conveniently, and the drag hook body is pulled back into the sheath more quickly and conveniently.

Drawings

FIG. 1 is a front view of an embodiment of an auxiliary device for laparoscopic surgery of the present invention, showing the device when the hook body is retracted;

FIG. 2 is a top view (not shown on the right) of the laparoscopic surgical auxiliary instrument according to the first embodiment of the present invention, with the retractor body open;

FIG. 3 is a front view of a handle of an embodiment of the laparoscopic surgery assisting apparatus of the present invention;

fig. 4 is a front view of an auxiliary instrument for laparoscopic surgery according to a third embodiment of the present invention, when the hook body is retracted.

Detailed Description

The following is further detailed by way of specific embodiments:

the reference numbers in the drawings attached hereto include: the retractor comprises an outer sheath 1, a push block 2, a push rod 3, a groove 301, a retractor body 4, a limiting protrusion 5, a return spring 6, a handle 7, an upper handle 701, a lower handle 702, a connecting block 703, a lower handle body 7021, a push rod 7022 and a spreading spring 8.

Example one

As shown in fig. 1, 2 and 3, an auxiliary instrument for laparoscopic surgery comprises an outer sheath 1, and a handle 7 and a retractor respectively attached to both ends of the outer sheath 1. The handle 7 comprises an upper handle 701, a lower handle 702 and a connecting block 703, the outer wall of the connecting block 703 is provided with external threads, the inner wall of the end part of the sheath 1 is provided with internal threads matched with the external threads, and the connecting block 703 is fixedly connected with the sheath 1 through thread matching; the upper handle 701 is welded or integrally formed on the connecting block 703; a cavity communicated with the inner channel of the sheath 1 is formed in the connecting block 703, a connecting rod is fixed in the cavity, the lower handle 702 is hinged on the connecting block 703 through the connecting rod to form a crossed handle with the upper handle 701, a torsion spring is further sleeved on the connecting rod at the connecting part of the upper handle 701 and the lower handle 702, and when a user pinches the lower handle 702, the upper handle 701 and the lower handle 702 are folded; when the lower handle 702 is released, the torsion spring causes the lower handle 702 to expand and return.

The lower handle 702 comprises a push rod 7022 and a lower handle body 7021, the push rod 7022 is integrally formed at one end of the lower handle body 7021 close to the connecting rod, and an included angle is formed between the push rod 7022 and an outer side arm of the lower handle body 7021, so that one end of the push rod 7022, which is far away from the lower handle body 7021, can extend forwards when the lower handle 702 is pressed. A sliding part is arranged in the sheath 1 and comprises a push rod 3 and a push block 2, the push block 2 is connected in the sheath 1 in a sliding way, and the push rod 3 is integrally formed or welded in the middle of the push block 2; the inner wall of the outer sheath 1 is also provided with a limit protrusion 5, the limit protrusion 5 is annular in the embodiment, a return spring 6 is supported between the limit protrusion 5 and the push block 2, and one end of the push rod 3 close to the push block 2 passes through the return spring 6 during installation; one end of the push rod 3, which is far away from the push block 2, is provided with a groove 301, a connecting hole is arranged at the position of the groove wall of the groove 301, a rivet penetrates through the connecting hole, and one end of the drag hook, which is close to the outer sheath 1, is connected to the rivet. The drag hook comprises 3-4 drag hook bodies 4, specifically 4 in the embodiment, one end of each drag hook body 4 close to the sheath 1 is provided with a hole, and when a rivet penetrates through a groove 301 in the end part of the push rod 3, the rivet penetrates through the hole in the end part of the drag hook body 4 to realize the hinging of the drag hook body 4 and the push rod 3; an opening spring 8 is also arranged between every two adjacent drag hook bodies 4, and two ends of the opening spring 8 are respectively welded with the two adjacent drag hook bodies 4; as shown in fig. 2, one end of the retractor body 4, which is far away from the push rod 3, is bent downwards to form an arc shape, the bent part is in arc transition, and when the retractor body 4 is pushed out of the sheath 1, a sector-shaped covering area as shown in fig. 2 can be formed, and the retractor body 4 can pass through the center of the limiting protrusion 5 during detachment. When the reset spring 6 pushes the push block 2 away, only the arc-shaped part of the end part of the drag hook body 4 is positioned outside the sheath 1, and at the moment, the expanding spring 8 is compressed under the action of the sheath wall of the sheath 1, so that the drag hook body 4 is folded together; when the push block 2 compresses the return spring 6, the drag hook body 4 is pushed out of the sheath 1, the expanding spring 8 is expanded, and the expanding spring 8 is just positioned on the inner wall of the end part of the sheath 1.

When laparoscopic surgery is performed, a medical worker holds the handle 7 by hand, one end of the sheath 1, which is far away from the handle 7, is inserted into a patient, when the intestinal tracts of the patient need to be equally spaced to expose more surgical visual fields, the medical worker only needs to press down the handle 7021, because an included angle is formed between the lower handle 7021 and the push rod 7022, the push rod 7022 is pushed out at the moment, the push block 2 slides in the sheath 1 under the pushing of the push rod 7022, the reset spring 6 is compressed at the moment, the push block 2 further pushes the push rod 3 to push the drag hook body 4 out along the port of the sheath 1 in the sliding process, in the process that the drag hook body 4 is pushed out, the distraction spring 8 between two adjacent drag hook bodies 4 is slowly distracted, the drag hook body 4 is distracted into a fan shape, the area covered by the drag hook body 4 is larger, when the reset spring 6 is completely compressed, the drag hook body 4 completely stretches out, and the distraction spring 8 is just right positioned at the inner wall of the end part of the intestinal tracts of the sheath 1 at the medical worker, and then the intestinal tracts are hooked by utilizing the arc part at the front end of the drag hook body 4, so that more surgical fields can be exposed, and more surgical fields can be convenient for operating doctors. When the operation is completed, when the intestinal canal is not required to be opened, the medical staff only needs to loosen the lower handle body 7021, the lower handle body 7021 is propped open under the action of the torsion spring and does not support the push block 2 any more, meanwhile, the reset spring 6 is restored, push the push block 2 to the direction of the handle 7, the push rod 3 is brought back in the process that the push block 2 is pushed, and further the drag hook body 4 retracts into the sheath 1, in the process that the drag hook body 4 retracts, the inner wall of the sheath 1 compresses the drag hook body 4 to the middle, so that the propping spring 8 is compressed, when the reset spring 6 is restored completely, the drag hook body 4 stops retracting, and at the moment, only the arc-shaped part at the end part of the drag hook body 4 is positioned outside the end part of the sheath 1.

When the instrument needs to be cleaned and disinfected, the handle 7 at the end part of the sheath 1 is detached, the push block 2, the push rod 3 and the draw hook are taken out along the opening at the end part of the sheath 1, and then the sheath 1, the push rod 3, the push block 2, the draw hook and the like are disinfected. When the sheath is used next time, the push rod 3 and the push block 2 are inserted along the port at one end of the sheath 1 close to the handle 7, and then the handle 7 is connected for reuse.

Example two

The difference between the first embodiment and the second embodiment is that the outer sheath 1 comprises a right sheath and a left sheath, the right sheath is in threaded connection with the left sheath, the return spring 6 is just located at the connection position of the right sheath and the left sheath when the outer sheath is connected, namely, the limiting protrusion 5 is located on the inner wall of the left sheath, and the return spring 6 is welded on one side of the limiting protrusion 5 close to the push block 2. When the return spring 6 is expanded, the push block 2 is positioned in the right sheath, and when the return spring 6 is compressed, the push block 2 can slide from the right sheath to the left sheath. And the handle 7 is welded or integrally formed at one end of the right sheath far away from the left sheath in the embodiment.

When in use, the use flow is the same as the first embodiment. When needs are to the apparatus cleaning and disinfecting, separate right sheath and left sheath, then with push rod 3 with ejector pad 2 from the right intrathecal take out can, then wash right sheath and handle 7, push rod 3 and ejector pad 2 and left sheath respectively, at this moment, because reset spring 6 with spacing protruding 5 welding together, can prevent when cleaning and disinfecting that reset spring 6 accident is lost.

EXAMPLE III

As shown in fig. 4, the difference between the present embodiment and the first embodiment is that an external thread is disposed at one end of the sheath 1 close to the handle 7, an internal thread is disposed at one end of the cavity wall of the internal cavity of the connecting block 703 close to the sheath 1, and the sheath 1 and the handle 7 are fixedly connected through thread matching. When the outer sheath 1 is connected to the connecting block 703, one end of the push block 2 away from the return spring 6 is located in the cavity of the connecting block 703.

The above description is only an embodiment of the present invention, and the present invention is not limited to the field related to the embodiment, and the general knowledge of the known specific structure and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides an auxiliary instrument for laparoscopic surgery, includes the sheath and connects in the handle and the drag hook at sheath both ends respectively, its characterized in that: a sliding part is connected in the sheath, and one end of the drag hook is hinged on the sliding part; the retractor comprises a plurality of retractor bodies, and the retractor bodies are connected in the sheath in a sliding manner through sliding parts and can extend out of the sheath to form a sector-shaped covering area; the handle is positioned on one side of the sheath upper sliding part far away from the drag hook body and can push the sliding part to slide.

2. An auxiliary instrument for laparoscopic surgery according to claim 1, wherein: and one end of the drag hook body, which is close to the sheath, is provided with an opening spring.

3. An auxiliary instrument for laparoscopic surgery according to claim 2, wherein: one end of the drag hook body, which is far away from the sheath, is bent downwards to form an arc shape, and the bent part is in arc transition.

4. An auxiliary instrument for laparoscopic surgery according to claim 3, wherein: the number of the drag hook bodies is 3-4.

5. An auxiliary instrument for laparoscopic surgery according to claim 4, wherein: the sliding part comprises a push rod and a push block, the push rod is fixedly connected to the push block, and the push block is connected in the sheath in a sliding manner; the plurality of drag hook bodies are hinged at one end of the push rod far away from the push block.

6. An auxiliary instrument for laparoscopic surgery according to claim 5, wherein: a limiting protrusion is arranged in the outer sheath, a return spring is fixedly connected to the limiting protrusion, and the return spring is located between the limiting protrusion and the push block.

7. An auxiliary instrument for laparoscopic surgery according to claim 6, wherein: the handle comprises an upper handle, a lower handle and a connecting block, and the connecting block is connected to one end of the sheath, which is far away from the drag hook body; the lower handle is hinged in the connecting block, and one end of the lower handle close to the connecting block can be abutted against the push block when the lower handle is rotated; the upper handle is fixedly connected with the connecting block.

8. An auxiliary instrument for laparoscopic surgery according to claim 7, wherein: the lower handle comprises a push rod and a lower handle body, an included angle is formed between the push rod and the lower handle body, and one end, far away from the lower handle body, of the push rod can abut against the push block when the lower handle is rotated.

9. An auxiliary instrument for laparoscopic surgery according to claim 8, wherein: the outer sheath comprises a left sheath and a right sheath, the left sheath and the right sheath are detachably connected, and the return spring is positioned at the joint of the left sheath and the right sheath; the handle is connected to one end of the right sheath far away from the left sheath.

10. An auxiliary instrument for laparoscopic surgery according to claim 9, wherein: and a torsional spring is arranged at the hinged position of the upper handle and the lower handle in the connecting block.