CN212213778U - Negative pressure assisted laparoscopic surgery needle-shaped spleen extractor - Google Patents

Abstract

The utility model discloses a negative pressure assisted laparoscopic surgery needle-shaped spleen extractor, which comprises a handle, wherein the front end of the handle is provided with a needle head device, the rear end of the handle is provided with a negative pressure tube, the other end of the negative pressure tube is connected with a storage device, the rear end of the handle is also provided with a power line, the interior of the handle is provided with a power device, the needle head device comprises an outer sleeve and an inner sleeve, the front end of the outer sleeve is provided with a first groove, the inner sleeve is provided with a second groove corresponding to the first groove, the inner sleeve is sleeved inside the outer sleeve, the tip of the outer sleeve is also internally provided with a micro bearing, the utility model has precise structure and scientific design, does not need to enlarge an operation opening or increase the operation opening, can smoothly extract the spleen only under the existing mirror hole and the operation hole of the laparoscopic surgery, has small surgical trauma and short operation time, after healing, the scar is tiny, which accords with the principle of minimally invasive surgery.

Description

Negative pressure assisted laparoscopic surgery needle-shaped spleen extractor

Technical Field

The utility model relates to a spleen field of taking out specifically is supplementary laparoscopic surgery aciculiform spleen extractor of negative pressure.

Background

In laparoscopic splenectomy, the spleen cannot be taken out from the existing operation port after being completely dissociated, in pediatric splenectomy, an enlarged umbilical cavity mirror hole or two adjacent auxiliary holes near the spleen area are mostly adopted to cut, the spleen is taken out from the enlarged operation port, and even if the spleen cannot be completely taken out from the abdominal cavity, the spleen must be broken and then taken out one by one, so that the process of taking out the spleen is time-consuming and labor-consuming, the operation port is enlarged, the operation time is obviously increased, the operation scar is obvious after healing, and the principle of minimally invasive surgery is obviously destroyed. The prior invention with patent number CN201710070446.5 provides a new idea, namely, a tissue grinder is used for taking spleens in laparoscopic splenectomy, the spleens need to be put into an taking bag under the assistance of a scope before being ground, because of the limited space for the operation, it is obviously not an easy task to put the spleen into the fetching bag, particularly, it takes time to load a huge spleen into the fetching bag, and in addition, the tissue crusher is adopted, the front end of the rotating device, the thread-shaped blade and the cutter head at the front end of the rotating shaft are all required to avoid the special fetching bag, once the special fetching bag is damaged, the failure of fetching the spleen can be caused, and the front end of the rotating device, the thread-shaped blade and the cutter head at the front end of the rotating shaft are extended into the special fetching bag for operation by adopting the tissue crusher, and the spleen is convenient to be fetched by ensuring certain tension by properly installing the fetching bag, and the operation is not performed under direct vision and has certain blindness. How can the spleen be taken out smoothly under the existing endoscopic hole and operation hole of the endoscopic surgery without extending the surgical incision? The utility model discloses will make detailed scheme for solving this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a supplementary laparoscopic surgery aciculiform spleen extractor of negative pressure to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the needle-shaped spleen extractor for the negative-pressure assisted endoscopic surgery comprises a handle, wherein a needle head device is arranged at the front end of the handle, a negative pressure tube is arranged at the rear end of the handle, the other end of the negative pressure tube is connected with a storage device, a power line is further arranged at the rear end of the handle, and a power device is arranged inside the handle;

the syringe needle device includes outer sleeve and inlayer sleeve, outer sleeve front end is provided with first fluting, the position that the inlayer sleeve corresponds first fluting is provided with the second fluting, the inlayer sleeve cup joints inside outer sleeve, the inside micro-bearing that still is provided with in outer sleeve most advanced, outer sleeve end is provided with the water injection pipe, the water injection pipe passes the handle, the position that outer sleeve end and water injection pipe correspond is provided with the water filling port, be provided with the recess on the outer sleeve lower extreme inner wall, outer sleeve upper end is provided with the air inlet, be provided with the check valve on the air inlet.

The syringe needle device is the main device of this design, can realize taking out the spleen after dissociating fast in the art mouth under the supplementary of chamber mirror, and easy operation, operate under the screen monitoring, high security, need not enlarge the art mouth, more need not add the incision in addition, the negative pressure pipe is used for connecting the negative pressure source, be used for outside the spleen suction human body who takes out among the syringe needle device, can realize sucking spleen tissue into the needle mouth and cutting again, can not cause the condition that other tissues were cut to the sword mouth mistake, storage device can store the spleen that leaves the human body, can also separate tissue and blood, power device is the structure of supplementary syringe needle device, the help realizes getting the minimal access principle of spleen operation.

The second slot rotates in the first slot, so that the cutting edge on the second slot gradually cuts off the tissue sucked into the pipeline, the probability that the cutting edge contacts other tissues is reduced to a great extent, and the safety level of the operation is greatly increased.

The outer diameter of outer sleeve is 10mm, the inner diameter of outer sleeve is 8mm, the outer diameter of inlayer sleeve is 7.5mm, the inner diameter of inlayer sleeve is 5.5 mm.

The sizes of the structures of the outer sleeve and the inner sleeve directly influence the size of an operation wound, and the outer diameter of the outer sleeve is designed to be from an incision of a clinical laparoscopic operation, so that the sizes completely accord with the principle of a minimally invasive operation, and the diameter which can be designed for adults is slightly thicker.

The width of the first slot is one third of the circumference of the outer sleeve, the length of the first slot is 4cm, the width of the second slot is one third of the circumference of the inner sleeve, the length of the second slot is 4.5cm, and one side surface of the second slot, which is parallel to the inner sleeve, is a cutting edge.

The first notch and the second notch are designed according to the average size of the spleen, so that the spleen taking time can be greatly reduced, and the risk that the blade contacts other tissues can be greatly reduced.

The storage device comprises a seal box, a seal cover is arranged on the upper portion of the seal box, the upper end of the seal cover is connected with a negative pressure pipe, a connecting piece is arranged at the lower end of the seal cover, a specimen bag is arranged at the lower end of the connecting piece, honeycomb holes are formed in the specimen bag, and a negative pressure interface is arranged at the lower end of the seal box.

The negative pressure device connected to the negative pressure interface is a pressure source for spleen to enter the needle tube, the spleen tissue taken out directly enters the sample bag, the honeycomb holes arranged on the sample bag can also separate tissue and blood, the blood is sucked away through the negative pressure interface, and the spleen tissue in the sample bag can be used for further examination.

The power device comprises a motor, the front end of the motor is provided with a gear wheel, a pinion is fixedly arranged at the position corresponding to the inner layer sleeve and the gear wheel, the gear wheel and the pinion are meshed with each other, the pinion is fixed on the inner layer sleeve, the inner layer sleeve is connected with the inner ring of the micro bearing, the outer layer sleeve is connected with the outer ring of the micro bearing, a switch is arranged at the upper part of the front end of the handle, and the switch and the motor are respectively electrically connected with a power line.

The switch can control the rotation of the inner sleeve through the control motor, so as to control the spleen taking process, the mobility is strong, a doctor can start or stop taking the spleen at any time according to the situation, and the power structure of the large gear and the small gear can lead the spleen tissue out of the inner sleeve under the rotating situation.

The terminal connecting cylinder that is provided with of inlayer sleeve, inlayer sleeve and connecting cylinder are connected with rotary seal circle, the connecting cylinder is terminal to be connected with the negative pressure pipe, outer sleeve and inlayer telescopic clearance are provided with the rubber circle.

Under the static condition of rotary seal can realize that inlayer sleeve rotates, connecting cylinder, can also seal between inlayer sleeve and the connecting cylinder, the rubber circle is used for sealing the gap between outer sleeve and the inlayer sleeve, and the front end rubber circle prevents that blood, spleen tissue from blockking up the bearing, and the rear end rubber circle prevents that blood, spleen tissue from getting into the handle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses need not enlarge the art mouth or increase the art mouth, only can take out the spleen smoothly under current mirror hole of laparoscopic surgery, handle hole, the operation wound is little, and the operation time is short, and the cicatrix is small after healing, accords with minimal access surgery's principle.

2. The spleen taking process is finished under the endoscope, an operator can adjust the spleen taking process according to conditions, the front end of the needle body can be inserted into the spleen in a limited space, the spleen is cut outwards from the inside, namely, the inside of the spleen is hollowed out firstly, and then the external membrane of the spleen is broken and taken out.

3. Traditional getting the spleen process, with the tissue breaker, the rotating device front end and the heliciform blade are smashed the spleen, the special bag of tool bit damage in the pivot front end can lead to getting the circumstances that the spleen failed, adopt the negative pressure to get the spleen, can follow the centre of spleen and begin the cutting, get spleen in-process syringe needle device fine motion can, regard the tunica adventitia of spleen as "getting the thing bag", operate under the supervision of peritoneoscope again, two nippers are supplementary, consequently safe and reliable more, the risk that the blade injures other tissues has been reduced to a great extent.

Drawings

FIG. 1 is a schematic structural view of the needle-shaped spleen extractor for negative pressure assisted endoscopic surgery of the present invention;

fig. 2 is a front view of the needle device of the present invention;

FIG. 3 is a cross-sectional view of the outer sleeve of the present invention;

fig. 4 is a front view of the inner sleeve of the present invention;

FIG. 5 is a cross-sectional view of the needle device of the present invention at the slot;

fig. 6 is a schematic structural view of the power device of the present invention;

fig. 7 is a cross-sectional view of the non-slotted portion of the needle apparatus of the present invention.

Reference numerals: 1. a handle; 2. a needle device; 3. a negative pressure tube; 4. a storage device; 5. a power line; 6. a power plant; 7. an outer sleeve; 8. an inner sleeve; 9. a first slot; 10. a second slot; 11. a micro-bearing; 12. a blade; 13. a sealing box; 14. a sealing cover; 15. a connecting member; 16. a specimen bag; 17. honeycomb holes; 18. a negative pressure interface; 19. a motor; 20. a bull gear; 21. a pinion gear; 22. a switch; 23. a connecting cylinder; 24. rotating the sealing ring; 25. a rubber ring; 26. a water injection pipe; 27. a water injection port; 28. a groove; 29. an air inlet; 30. a one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1 to 7, the needle-shaped spleen extractor for negative pressure assisted endoscopic surgery comprises a handle 1, a needle head device 2 is arranged at the front end of the handle 1, the needle head device 2 directly extends into dissociated spleen tissue to cut the spleen tissue from inside to outside, a negative pressure tube 3 is arranged at the rear end of the handle 1, the other end of the negative pressure tube 3 is connected with a storage device 4, the cut spleen tissue is in a strip shape and is rapidly sucked into the storage device 4 by negative pressure, blood and water in the spleen tissue are sucked away by a suction device, pathological examination can be carried out on the tissue stored in the storage device 4, a power line 5 is further arranged at the rear end of the handle 1, the power line 5 is used for connecting a power supply to supply power to a power device, a power device 6 is arranged inside the handle 1, the structure of the power device can realize the cutting action of the needle head device 2, and the needle head device 2, gradually cutting the spleen tissue from the inside;

the needle device 2 comprises an outer sleeve 7 and an inner sleeve 8, a first slot 9 is arranged at the front end of the outer sleeve 7, a second slot 10 is arranged at the position, corresponding to the first slot 9, of the inner sleeve 8, a blade 12 is arranged on one side surface, parallel to the second slot 10 and the inner sleeve 8, of the inner sleeve 8, the inner sleeve 8 is sleeved inside the outer sleeve 7, after a spleen tissue is cut off, the first slot 9 and the second slot 10 are mutually opened and closed along with the rotation of the inner sleeve, the spleen tissue cannot be sucked into the inner sleeve 8 again until the blade 12 at the position of the second slot 10 rotates the next circle, the inner space of a needle body starts to be opened, the spleen tissue also enters the inner sleeve 8 under the action of negative pressure, when the blade 12 rotates to the other edge of the slot of the outer sleeve 8, the inner space of the inner sleeve 8 is opened to the maximum, the tissue sucked into the needle body reaches the maximum, and then the cutting of a second tissue, in the process, the cut tissue block moves towards the tail end along the inner space of the inner sleeve 8, and the whole spleen can be cut out of the body quickly by reciprocating; the tip of the outer sleeve 7 is internally provided with a micro bearing 11, the micro bearing 11 is matched with the power device 6, the inner sleeve 8 can stably rotate, the outer sleeve 7 is static, the tail end of the outer sleeve 7 is provided with a water injection pipe 26, the water injection pipe 26 is a thin hose and is fixedly arranged on the outer sleeve 7, the water injection pipe 26 penetrates through the handle 1, the handle 1 fixes the position of the water injection pipe 26 to prevent the water injection pipe 26 from obstructing the operation, the water injection pipe 26 can inject water flow into the outer sleeve 7 when being connected with a water source to help to convey the cut spleen tissues, the tail end of the outer sleeve 7 and the position corresponding to the water injection pipe 26 are provided with a water injection port 27, the water injection port 27 is used for connecting the outer sleeve 7 and the water injection pipe 26, the inner wall of the lower end of the outer sleeve 7 is provided with a groove 28, the groove 28 is a shallow groove with the depth of 0.5-0.6 mm, the water entering from, the opening of the first slot 9 is smaller than that of the second slot 10 by a distance of 2.5mm, under the action of negative pressure, most of water flows into the inner sleeve to convey spleen tissues but does not flow into the spleen, after a small part of water flows into the spleen, the water can be sucked away by the negative pressure in the subsequent spleen taking process, the upper end of the outer sleeve 7 is provided with an air inlet 29, when the spleen is taken, air passes through the air inlet 29 and flows through the groove 28 and the gap between the inner sleeve and the outer sleeve to reach the first slot 9, the spleen tissues are conveyed in coordination with the negative pressure drainage, a one-way valve 30 is arranged on the air inlet 29, and the one-way valve 30 prevents water from flowing out of the air inlet 29.

The outer diameter of outer sleeve 7 is 10mm, and the internal diameter of outer sleeve 7 is 8mm, and the external diameter of inlayer sleeve 8 is 7.5mm, and the internal diameter of inlayer sleeve 8 is 5.5 mm. The sizes of the structures of the outer sleeve 7 and the inner sleeve 8 directly influence the size of the operation wound, and the outer diameter of the outer sleeve 7 is designed to be derived from the incision of the clinical laparoscopic operation, so the sizes completely accord with the principle of the minimally invasive operation, and the diameter which can be designed for adults is slightly thicker.

The width of the first slot 9 is one third of the circumference of the outer sleeve 7, the length of the first slot 9 is 4cm, i.e. the length of a in fig. 3, the width of the second slot 10 is one third of the circumference of the inner sleeve 8, and the length of the second slot 10 is 4.5cm, i.e. the length of b in fig. 4.

The storage device 4 comprises a sealing box 13, a sealing cover 14 is arranged on the upper part of the sealing box 13, a specimen bag 16 can be taken out by opening the sealing cover 14, so as to take out spleen tissues for pathological examination, the upper end of the sealing cover 14 is connected with a negative pressure pipe 3, a connecting piece 15 is arranged at the lower end of the sealing cover 14, the specimen bag 16 is arranged at the lower end of the connecting piece 15, a honeycomb hole 17 is arranged on the specimen bag 16, the honeycomb hole 17 can discharge blood from the specimen bag 16, a negative pressure interface 18 is arranged at the lower end of the sealing box 13, the negative pressure interface 18 is used for connecting an aspirator to generate negative pressure and suck away blood, the aspirator in a hospital is centrally controlled, the negative pressure value is increased along with the increase of the internal resistance of the negative pressure pipe 3 and is generally not more than 0.05MPa, when the aspirator is in no load, because air has resistance when flowing in a pipeline, the negative pressure value is about 0.01MPa, and the instant negative, and no additional negative pressure parameter of the aspirator is needed.

The power device 6 comprises a motor 19, the model of the motor 19 is ZYTD-520, a large gear 20 is arranged at the front end of the motor, a small gear 21 is fixedly arranged at the position corresponding to the inner sleeve 8 and the large gear 20, the large gear 20 is meshed with the small gear 21, the small gear 21 is fixed on the inner sleeve 8, the motor 19 can sequentially drive the large gear 20, the small gear 21 and the inner sleeve 8 to conduct self-transmission through rotation, the outer sleeve 7 is screwed on the handle 1, the inner ring of the micro bearing 11 is connected with the inner sleeve 8, the outer ring of the micro bearing 11 is connected with the outer sleeve 7, a switch 22 is arranged at the upper part of the front end of the handle 1, the switch 22 can control the rotation of the inner sleeve 8 through controlling the motor 19, and further control the spleen preparation process, and.

The end of the inner sleeve 8 is provided with a connecting cylinder 23, the inner sleeve 8 is connected with the connecting cylinder 23 through a rotary sealing ring 24, the rotary sealing ring 24 can realize the rotation of the inner sleeve 8, under the static condition of the connecting cylinder 23, the inner sleeve 8 can be sealed with the connecting cylinder 23, the end of the connecting cylinder 23 is connected with the negative pressure pipe 3, a rubber ring 25 is arranged in the gap between the outer sleeve 7 and the inner sleeve 8, the rubber ring 25 is used for sealing the gap between the outer sleeve and the inner sleeve, the front end rubber ring 25 prevents blood, spleen tissues block the bearing 11, and the rear end rubber ring 25 prevents blood and spleen tissues from entering the handle 1.

The utility model discloses a theory of operation is: the power cord 5 is connected with a power supply, the negative pressure interface 18 is connected with an aspirator, when the spleen is completely dissociated, the spleen is placed into the front end of the needle head device through 10mm Trocar, under the endoscope, two separating forceps or grasping forceps are used for assisting, the spleen taking needle is inserted into the spleen, the switch 22 is pressed, the tissue at the second groove 10 is sucked into the space of the inner sleeve 8 at the cutting edge 12 through negative pressure, meanwhile, the inner sleeve 8 rotates rapidly, the cutting edge 12 cuts the spleen tissue entering the space of the inner sleeve 8, the cut tissue is sucked by the aspirator, one path of the tissue passes through the inner sleeve 8, the connecting cylinder 23, the negative pressure tube 3 and the sample bag 16, the honeycomb holes 17 can discharge blood from the sample bag 16, the blood is discharged through the negative pressure interface 18, and the spleen tissue in the sample bag 16 can be taken for pathological examination.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. Supplementary laparoscopic surgery aciculiform spleen extractor of negative pressure, including handle (1), its characterized in that: a needle device (2) is arranged at the front end of the handle (1), a negative pressure pipe (3) is arranged at the rear end of the handle (1), the other end of the negative pressure pipe (3) is connected with a storage device (4), a power line (5) is further arranged at the rear end of the handle (1), and a power device (6) is arranged inside the handle (1);

the needle device (2) comprises an outer sleeve (7) and an inner sleeve (8), a first groove (9) is formed in the front end of the outer sleeve (7), a second groove (10) is formed in the position, corresponding to the first groove (9), of the inner sleeve (8), a cutting edge (12) is arranged on one side face, parallel to the second groove (10) and the inner sleeve (8), the inner sleeve (8) is sleeved inside the outer sleeve (7), a micro bearing (11) is further arranged inside the pointed end of the outer sleeve (7), a water injection pipe (26) is arranged at the tail end of the outer sleeve (7), the water injection pipe (26) penetrates through the handle (1), a water injection port (27) is formed in the position, corresponding to the water injection pipe (26), of the tail end of the outer sleeve (7), a groove (28) is formed in the inner wall of the lower end of the outer sleeve (7), and an air inlet (29) is formed in the upper end of the outer, the air inlet (29) is provided with a one-way valve (30).

2. The negative pressure assisted laparoscopic surgery needle-shaped spleen extractor of claim 1, wherein: the outer diameter of outer sleeve (7) is 10mm, the inner diameter of outer sleeve (7) is 8mm, the outer diameter of inlayer sleeve (8) is 7.5mm, the inner diameter of inlayer sleeve (8) is 5.5 mm.

3. The negative pressure assisted laparoscopic surgery needle-shaped spleen extractor of claim 2, wherein: the width of the first slot (9) is one third of the circumference of the outer sleeve (7), the length of the first slot (9) is 4cm, the width of the second slot (10) is one third of the circumference of the inner sleeve (8), and the length of the second slot (10) is 4.5 cm.

4. The negative pressure assisted laparoscopic surgery needle-shaped spleen extractor of claim 3, wherein: storage device (4) are including seal box (13), seal box (13) upper portion is provided with sealed lid (14), sealed lid (14) upper end and negative pressure pipe (3) are connected, sealed lid (14) lower extreme is provided with connecting piece (15), connecting piece (15) lower extreme is provided with sample bag (16), be provided with honeycomb holes (17) on sample bag (16), seal box (13) lower extreme is provided with negative pressure interface (18).

5. The negative pressure assisted laparoscopic surgery needle-shaped spleen extractor of claim 4, wherein: power device (6) include motor (19), the motor front end is provided with gear wheel (20), the fixed position that inlayer sleeve (8) and gear wheel (20) correspond is provided with pinion (21), gear wheel (20) and pinion (21) intermeshing, pinion (21) are fixed on inlayer sleeve (8), inlayer sleeve (8) is connected to micro bearing (11) inner circle, outer sleeve (7) is connected to micro bearing (11) outer lane, handle (1) front end upper portion is provided with switch (22), motor (19) respectively with power cord (5) electric connection.

6. The negative pressure assisted laparoscopic surgery needle-shaped spleen extractor of claim 5, wherein: the utility model discloses a rubber ring, including inlayer sleeve (8), connecting cylinder (23) is provided with at inlayer sleeve (8) end, inlayer sleeve (8) and connecting cylinder (23) are connected with rotary seal circle (24), connecting cylinder (23) are terminal to be connected with negative pressure pipe (3), the clearance of outer sleeve (7) and inlayer sleeve (8) is provided with rubber circle (25).

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