CN117694935A

CN117694935A - Clinical tumor sample extractor of neurosurgery

Info

Publication number: CN117694935A
Application number: CN202410156199.0A
Authority: CN
Inventors: 陈辉
Original assignee: Yiyou Science And Technology Shenzhen Co ltd
Current assignee: Yiyou Science And Technology Shenzhen Co ltd
Priority date: 2024-02-04
Filing date: 2024-02-04
Publication date: 2024-03-15

Abstract

The invention discloses a neurosurgery clinical tumor specimen extractor, which belongs to the technical field of neurosurgery and comprises a loop bar, an operating bar, an elastic ring and a specimen collection bag, wherein a through hole is formed in the loop bar, the operating bar is arranged in the loop bar in a sliding manner, the elastic ring is arranged at the tail end of the operating bar, the specimen collection bag is provided with a through cavity along a bag opening, and the elastic ring is arranged in the cavity in a penetrating manner. The invention particularly provides a neurosurgery clinical tumor specimen extractor which is characterized in that a specimen collecting bag is automatically and fully unfolded, and the specimen collecting bag can rotate an operating rod by one hand according to operation requirements.

Description

Clinical tumor sample extractor of neurosurgery

Technical Field

The invention belongs to the technical field of neurosurgery, and particularly relates to a neurosurgery clinical tumor specimen extractor.

Background

Neurosurgery is a branch in surgery, and is based on surgery as a main treatment means, a unique neurosurgery research method is applied to research human nervous systems, such as brain, spinal cord and peripheral nervous systems, and associated accessory organs.

When the device is used in neurosurgery clinic, a neurosurgery clinic tumor specimen extractor is often required to extract a tumor specimen, so that the device is convenient to study, diagnose and treat, the extractor is developed specifically aiming at the operation requirement of laparoscopic surgery, and surgical resections (such as malignant tumor, cystic, purulent resections, endometrium and other tissues) can be taken out at one time.

However, in the practical use process, the material of the specimen collection bag is too soft, and after the bag opening is opened, the bag body part is still in a folded and closed state, so that the follow-up tumor specimen taking is not facilitated; in addition, the existing object taking device is inconvenient for a single hand to adjust the position and the opening angle of the specimen collection bag, and when a medical staff operates the object taking device by one hand and operates other surgical instruments by the other hand, the opening angle of the specimen collection bag is inconvenient to adjust, so that the surgical requirements cannot be met; in addition, the current extractor sample bag mouth can only be closed the operation, can only carry out once sample and take out, when carrying out the operation in the patient, can't carry out the operation that opens and shuts many times, is difficult to put into the excision thing of follow-up operation.

Disclosure of Invention

The invention mainly aims to solve the technical problems, and provides a neurosurgery clinical tumor specimen extractor which is characterized in that a specimen collecting bag is automatically and fully unfolded, and the specimen collecting bag can rotate an operation rod by one hand according to operation requirements.

The technical scheme adopted by the invention is as follows: the invention provides a neurosurgery clinical tumor specimen extractor which comprises a loop bar, an operating bar, an elastic ring and a specimen collecting bag, wherein a through hole is formed in the loop bar, the operating bar is arranged in the loop bar in a sliding manner, the elastic ring is arranged at the tail end of the operating bar, the specimen collecting bag is provided with a through cavity along a bag opening, the elastic ring is arranged in the cavity in a penetrating manner, an adjusting mechanism is arranged between the head end of the loop bar and the operating bar, a first air passage is arranged in the operating bar, a U-shaped air bag is arranged in the specimen collecting bag, the U-shaped air bag is longitudinally arranged along the inner wall of the specimen collecting bag, two ends of the U-shaped air bag are circumferentially extended along the inner wall of the specimen collecting bag and are provided with an air charging port and an air discharging port, the head end of the operating bar is provided with an air charging assembly, one end of the first air passage is communicated with the air charging port, the air charging assembly is communicated with the other end of the first air passage, the air charging assembly charges the U-shaped air bag through the first air passage, and the U-shaped air bag charges the air charging assembly to drive the specimen collecting bag to be rapidly unfolded downwards, and is matched with the unfolded elastic ring to realize full unfolding; the head end of action bars is equipped with the smooth chamber, the head end in smooth chamber is equipped with the slide hole, the slip is equipped with the piston in the smooth chamber, piston one side is equipped with the slide bar, the tip of slide bar runs through the slide hole and locates the smooth chamber outside, the inside second air flue that is equipped with along the axial of action bars, the one end and the U-shaped gasbag intercommunication of second air flue, the other end and the smooth chamber intercommunication of second air flue, the piston divide into two independent cavitys of A chamber (the cavity that slide bar one side was kept away from to the smooth chamber) and B chamber (the cavity that the slide cavity is close to slide bar one side), adjust the volume size of two independent cavitys through the piston, pull the action bars through the slide bar, the slide bar drives the piston earlier in the smooth intracavity for the piston produces the negative pressure in second air flue department, thereby take out the gas in the U-shaped gasbag to the A intracavity through the second air flue, conveniently close the sample collection bag, when the piston moves to the one end inner wall that the slide bar was kept away from to the action bars, the action bars removal is driven.

Preferably, a push pull ring is arranged on one side of the sliding rod away from the sliding cavity, so that the sliding rod is conveniently pushed and pulled, and a holding ring is symmetrically arranged at the head end of the sleeve rod.

Preferably, the head end of the operating rod is provided with an air inlet communicated with the head end of the first air passage, the tail end of the operating rod is provided with an air outlet communicated with the tail end of the first air passage, the air outlet is communicated with the air charging port through a hose, the air supply assembly is communicated with the air inlet, the air inlet is provided with a one-way valve, the air supply assembly supplies air to the first air passage through the air inlet, the air is inflated to the U-shaped air bag through the first air passage, the air outlet, the hose and the air charging port, and the second air passage is communicated with the air suction port through the hose.

The adjusting mechanism comprises an adjusting end, an adjusting toothed ring and an adjusting rack, the adjusting end is coaxially arranged at the head end of the loop bar, a through sliding through hole is formed in the adjusting end, the operating rod slides to penetrate through the sliding through hole, a rotating groove is formed in the side wall of the sliding through hole along the circumferential direction, the adjusting toothed ring is rotationally arranged in the rotating groove, gear teeth are arranged on the outer wall of the adjusting toothed ring, a push-pull sliding hole communicated with the rotating groove is formed in one side of the adjusting end, the adjusting rack slides to penetrate through the push-pull sliding hole, gear teeth are formed in one side, close to the adjusting toothed ring, of the adjusting rack, the adjusting rack is meshed with the adjusting toothed ring, a positioning component is arranged between the operating rod and the inner wall of the adjusting toothed ring, the operating rod is axially and fixedly connected with the adjusting toothed ring in a circumferential direction through the positioning component, the adjusting toothed ring is driven to rotate through pushing the adjusting rack, and the adjusting toothed ring drives the operating rod to synchronously rotate through the positioning component, and accordingly the opening angle of the elastic ring and the specimen collecting bag is adjusted.

Preferably, the side wall of the adjusting rack is provided with a poking bulge, and the poking bulge is convenient for pushing and pulling the adjusting rack.

Preferably, the positioning assembly comprises a fixing groove, a sliding groove and a positioning column, the fixing groove is arranged on the inner wall of the adjusting toothed ring, the sliding groove is arranged on the outer wall of the operating rod, the sliding groove is axially distributed along the operating rod, the fixing groove and the sliding groove form a containing through hole, the positioning column is rotationally arranged in the containing through hole, and the positioning column is clamped in the rotating groove; the fixed groove, the positioning column and the sliding groove are used for limiting the operating rod in the circumferential direction, and the sliding grooves are axially distributed along the operating rod, so that the operating rod can slide along the axial direction conveniently.

Preferably, the inside third air flue that is equipped with of loop bar, the tail end of loop bar inner wall is equipped with the annular groove along circumference, array distribution is equipped with the elastic metal piece in the annular groove, the one end and the annular groove inner wall rigid coupling of elastic metal piece, the elastic metal piece is around loop bar axis circumference array distribution, be equipped with the condensation gasbag between elastic metal piece and the annular groove inner wall, the tail end and the condensation gasbag intercommunication of third air flue, the head end intercommunication of third air flue is equipped with the inflation hole, and during the initial state, elastic metal piece and annular groove inner wall laminating, inflate for the condensation gasbag through the third air flue, and the condensation gasbag promotes the axial direction removal of elastic metal piece to the action bars, and the free end of multiunit elastic metal piece is synchronous to the center and draws close to make the through-hole diameter that multiunit elastic metal piece encloses diminish.

Further, the air supply assembly comprises an elastic air bag and an air supply pipe, the elastic air bag is arranged on the side wall of the sliding cavity, one end of the elastic air bag is communicated with the air inlet through the air supply pipe, the air supply pipe is in threaded connection with the air inlet, the other end of the elastic air bag is provided with an air inlet, a one-way air inlet valve is arranged in the air inlet, the elastic air bag is inflated into the U-shaped air bag by pressing the elastic air bag, and after the hand is loosened, the elastic air bag is inhaled and restored under the elastic action through the one-way air inlet valve.

Further, one end of the sliding cavity close to the sliding hole is communicated with a condensed air pipe, an elastic telescopic hose is communicated between the condensed air pipe and the inflating hole, a sealing gasket is arranged at the sliding hole, the sealing gasket ensures the tightness of the sliding cavity, when the piston is pulled by the sliding rod, gas in the U-shaped air bag is pumped into the cavity A, the volume of the cavity B is reduced, and the gas in the cavity B enters a third air passage through the elastic telescopic hose to inflate the condensed air bag.

Preferably, the lantern rings are arranged at the two ends of the cavity, the lantern rings are slidably sleeved on the elastic rings, the lantern rings are respectively connected with a reset rope, the operating rod is axially provided with a pull rope channel, the tail end of the pull rope channel penetrates through the tail end of the operating rod, the head end of the pull rope channel is communicated with a bending channel, and the free end of the reset rope extends out of the head end of the operating rod after penetrating through the pull rope channel and the bending channel.

The elastic ring is made of nickel-titanium shape memory alloy, and the specimen collection bag and the U-shaped air bag are made of polyurethane film materials through heat sealing.

The beneficial effects obtained by the invention by adopting the structure are as follows:

1. through first air flue, U-shaped gasbag cooperation elasticity gasbag, can realize the quick expansion of sample collection bag, set up second air flue and smooth chamber, through piston and the slide bar with action bars sliding connection, be convenient for when closing the sample collection bag, take out the gas in the U-shaped gasbag fast.

2. With the help of the sliding cavity, the piston and the third air passage, when the sliding rod is pulled back, the sliding rod is inflated by the piston through the third air passage to inflate the condensation air bag, the condensation air bag inflates and bulges, the condensation air bag pushes the elastic metal sheets to move towards the axis direction of the operating rod, the free ends of the plurality of groups of elastic metal sheets synchronously draw close to the center, so that the diameter of a through hole surrounded by the plurality of groups of elastic metal sheets is reduced, and the through hole surrounded by the plurality of groups of elastic metal sheets pushes the bag mouth of the specimen collection bag to move and close along the elastic ring while accelerating the contraction speed of the elastic ring.

3. The stay cord passageway and the reset rope are arranged, and the reciprocating movement of the piston in the sliding cavity is matched, so that the specimen collection bag can be conveniently opened and closed for a plurality of times, and the excision object of the subsequent operation can be conveniently placed.

Drawings

FIG. 1 is a schematic structural view of a neurosurgical clinical tumor specimen extractor provided by the invention;

FIG. 2 is an enlarged partial view of portion A of FIG. 1;

FIG. 3 is a schematic view of a neurosurgical clinical tumor specimen extractor according to another view angle;

FIG. 4 is an enlarged partial view of portion B of FIG. 3;

FIG. 5 is a schematic view of the structure of the operating lever, elastic ring and specimen collection bag provided by the present invention;

FIG. 6 is an enlarged partial view of portion C of FIG. 5;

FIG. 7 is a schematic view of the structure of the operating lever and the elastic ring provided by the invention;

FIG. 8 is an enlarged partial view of portion D of FIG. 7;

FIG. 9 is a cross-sectional view of the lever and elastomeric ring provided by the present invention;

FIG. 10 is a schematic view of the structure of the loop bar and the adjustment mechanism provided by the present invention;

FIG. 11 is a cross-sectional view of the loop bar, lever and adjustment mechanism provided by the present invention;

FIG. 12 is a cross-sectional view of a loop bar provided by the present invention;

fig. 13 is a schematic view showing an internal structure of a specimen collection bag according to the present invention.

Wherein 1, loop bar, 2, operation rod, 3, elastic ring, 4, specimen collection bag, 5, cavity, 6, adjusting mechanism, 7, first air passage, 8, U-shaped air bag, 9, inflation port, 10, air suction port, 11, air supply assembly, 12, sliding cavity, 13, sliding hole, 14, piston, 15, slide bar, 16, second air passage, 17, push-pull ring, 18, holding ring, 19, air inlet hole, 20, air outlet hole, 21, one-way valve, 22, adjusting end, 23, adjusting toothed ring, 24, adjusting rack, 25, rotating groove, 26, push-pull sliding hole, 27, positioning assembly, 28, toggle protrusion, 29, fixing groove, 30, sliding groove, 31, positioning post, 32, bending channel, 33, third air passage, 34, annular groove, 35, elastic metal sheet, 36, condensation air bag, 37, inflation hole, 38, elastic air bag, 39, air supply pipe, 40, air inlet, 41, one-way air inlet valve, 42, condensation air pipe, 43, elastic flexible hose, 44, seal, 45, lantern ring, 46, reset rope, and reset channel.

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

As shown in fig. 1-8 and 13, the neurosurgery clinical tumor specimen extractor provided by the invention comprises a loop bar 1, an operation bar 2, an elastic ring 3 and a specimen collection bag 4, wherein a through hole is formed in the loop bar 1, the operation bar 2 is slidably arranged in the loop bar 1, the elastic ring 3 is arranged at the tail end of the operation bar 2, the specimen collection bag 4 is provided with a through cavity 5 along a bag opening, the elastic ring 3 is arranged in the cavity 5 in a penetrating manner, an adjusting mechanism 6 is arranged between the head end of the loop bar 1 and the operation bar 2, a first air passage 7 is arranged in the operation bar 2, a U-shaped air bag 8 is arranged in the specimen collection bag 4, the U-shaped air bag 8 is longitudinally arranged along the inner wall of the specimen collection bag 4, two ends of the U-shaped air bag 8 are circumferentially provided with an air charging port 9 and an air exhausting port 10 along the inner wall of the specimen collection bag 4, one end of the operation bar 2 is provided with an air supply assembly 11, one end of the first air passage 7 is communicated with the air charging port 9, the air supply assembly 11 is communicated with the other end of the first air passage 7, the air supply assembly 11 drives the air supply assembly 11 to be rapidly expanded to the air bag 8 to the first air bag 8 to be fully expanded by the air bag 8 through the first air bag 8, and the air bag 8 is fully expanded by the elastic air bag 4, and the specimen is fully expanded by the air bag 4, and the specimen can be rapidly expanded by the inflation bag 4, and the specimen can be fully expanded by the specimen; the head end of the operating rod 2 is provided with a sliding cavity 12, the head end of the sliding cavity 12 is provided with a sliding hole 13, a piston 14 is arranged in the sliding cavity 12 in a sliding way, one side of the piston 14 is provided with a sliding rod 15, the end part of the sliding rod 15 penetrates through the sliding hole 13 and is arranged at the outer side of the sliding cavity 12, a second air passage 16 is axially arranged in the operating rod 2, one end of the second air passage 16 is communicated with the U-shaped air bag 8, the other end of the second air passage 16 is communicated with the sliding cavity 12, the piston 14 divides the sliding cavity 12 into an A cavity (a cavity of the sliding cavity 12, which is far away from the sliding rod 15), and a B cavity (a cavity of the sliding cavity 12, which is near the sliding rod 15), the sliding rod 15 is pulled back by the sliding rod 15, the piston 14 is firstly driven to slide in the sliding cavity 12, so that the piston 14 generates negative pressure at the second air passage 16, the air in the U-shaped air bag 8 is pulled out into the A cavity, the specimen collecting bag 4 is conveniently closed, and when the piston 14 moves to the inner wall of the sliding rod 12, and the sliding rod 15 is driven to move continuously by the sliding rod 15 when the piston 14 moves to the inner wall of the sliding rod 2, and the sliding rod 15 is driven to move continuously; the head end of the operating rod 2 is provided with an air inlet 19 communicated with the head end of the first air channel 7, the tail end of the operating rod 2 is provided with an air outlet 20 communicated with the tail end of the first air channel 7, the air outlet 20 is communicated with the air charging port 9 through a hose, the air supply assembly 11 is communicated with the air inlet 19, the air inlet 19 is provided with a one-way valve 21, the air supply assembly 11 supplies air to the first air channel 7 through the air inlet 19, the air is inflated to the U-shaped air bag 8 through the first air channel 7, the air outlet 20, the hose and the air charging port 9, and the second air channel 16 is communicated with the air suction port 10 through a hose; the elastic ring 3 is made of nickel-titanium shape memory alloy, and the specimen collection bag 4 and the U-shaped air bag 8 are made of polyurethane film materials through heat sealing.

Referring to fig. 9-11, the adjusting mechanism 6 includes an adjusting end 22, an adjusting toothed ring 23 and an adjusting rack 24, the adjusting end 22 is coaxially installed at the head end of the loop bar 1, a through sliding through hole is provided in the adjusting end 22, a rotating groove 25 is provided on the side wall of the sliding through hole along the circumferential direction, the adjusting toothed ring 23 is rotatably provided in the rotating groove 25, gear teeth are provided on the outer wall of the adjusting toothed ring 23, a push-pull sliding hole 26 communicated with the rotating groove 25 is provided on one side of the adjusting end 22, the adjusting rack 24 is slidably provided in the push-pull sliding hole 26, gear teeth are provided on one side of the adjusting rack 24 close to the adjusting toothed ring 23, the adjusting rack 24 is meshed with the adjusting toothed ring 23, a positioning component 27 is provided between the operating rod 2 and the inner wall of the adjusting toothed ring 23, the operating rod 2 is axially slidably connected with the adjusting toothed ring 23 through the positioning component 27 and is fixedly connected along the circumferential direction, the adjusting toothed ring 23 is driven by pushing the adjusting rack 24, the adjusting toothed ring 23 is rotated through the positioning component 27, and the adjusting toothed ring 23 is driven by the positioning component 27 to rotate synchronously the operating rod 2, thereby adjusting the angle of the elastic ring 3 and the collection bag 4 is adjusted; a push pull ring 17 is arranged on one side of the sliding rod 15 far away from the sliding cavity 12, so that the sliding rod 15 is conveniently pushed and pulled, and a holding ring 18 is symmetrically arranged at the head end of the sleeve rod 1; the side wall of the adjusting rack 24 is provided with a poking protrusion 28, and the poking protrusion 28 facilitates pushing and pulling of the adjusting rack 24.

Referring to fig. 11, the positioning assembly 27 includes a fixing groove 29, a sliding groove 30, and a positioning post 31, the fixing groove 29 is disposed on the inner wall of the adjusting toothed ring 23, the sliding groove 30 is disposed on the outer wall of the operating rod 2, the sliding groove 30 is axially distributed along the operating rod 2, the fixing groove 29 and the sliding groove 30 form a receiving through hole, the positioning post 31 is rotatably disposed in the receiving through hole, and the positioning post 31 is clamped in the rotating groove 25; the fixed groove 29, the positioning column 31 and the sliding groove 30 limit the operating rod 2 in the circumferential direction, and the sliding grooves 30 distributed along the axial direction of the operating rod 2 facilitate the axial sliding of the operating rod 2.

As shown in fig. 12, a third air passage 33 is provided in the loop bar 1, an annular groove 34 is provided at the tail end of the inner wall of the loop bar 1 along the circumferential direction, elastic metal sheets 35 are provided in the annular groove 34 in array, one end of each elastic metal sheet 35 is fixedly connected with the inner wall of the annular groove 34, the elastic metal sheets 35 are distributed around the circumferential array of the axis of the loop bar 1, a condensation air bag 36 is provided between each elastic metal sheet 35 and the inner wall of the annular groove 34, the tail end of the third air passage 33 is communicated with the condensation air bag 36, an air charging hole 37 is provided at the head end of the third air passage 33, in the initial state, the elastic metal sheets 35 are attached to the inner wall of the annular groove 34, the condensation air bag 36 is inflated through the third air passage 33, the condensation air bag 36 is inflated, the condensation air bag 36 pushes the elastic metal sheets 35 to move towards the axis direction of the operation bar 2, and the free ends of the groups of the elastic metal sheets 35 are synchronously gathered towards the center, so that the diameters of the through holes surrounded by the groups of the elastic metal sheets 35 are reduced.

As shown in fig. 3-4, the air supply assembly 11 includes an elastic air bag 38 and an air supply pipe 39, the elastic air bag 38 is disposed on a side wall of the sliding cavity 12, one end of the elastic air bag 38 is communicated with the air inlet 19 through the air supply pipe 39, the air supply pipe 39 is in threaded connection with the air inlet 19, an air inlet 40 is disposed at the other end of the elastic air bag 38, a unidirectional air inlet valve 41 is disposed in the air inlet 40, the elastic air bag 38 is inflated into the U-shaped air bag 8 by pressing the elastic air bag 38, and after the hand is loosened, the elastic air bag 38 is sucked and restored through the unidirectional air inlet valve 41; the one end intercommunication that is close to slide hole 13 of smooth chamber 12 is equipped with condensation trachea 42, the intercommunication is equipped with flexible hose 43 between condensation trachea 42 and the inflation hole 37, slide hole 13 department is equipped with sealing washer 44, and sealing washer 44 guarantees the leakproofness of smooth chamber 12, when drawing piston 14 through slide bar 15, when drawing the gas in the U-shaped gasbag 8 into A chamber, the volume in B chamber diminishes thereupon, and the gas in the B chamber gets into third air flue 33 through flexible hose 43, inflates condensation gasbag 36.

As shown in fig. 3 and 6, the two ends of the cavity 5 are provided with a collar 45, the collar 45 is slidably sleeved on the elastic ring 3, the collars 45 are respectively connected with a reset rope 46, the operating rod 2 is axially provided with a pull rope channel 47, the tail end of the pull rope channel 47 penetrates through the tail end of the operating rod 2, the head end of the pull rope channel 47 is communicated with a bending channel 32, and the free end of the reset rope 46 penetrates through the pull rope channel 47 and the bending channel 32 and then extends out of the head end of the operating rod 2.

When the device is specifically used, the holding ring 18 is held, the loop bar 1 is inserted into an operation part through the incision, in an initial state, the elastic ring 3 and the specimen collection bag 4 are both contained in the tail end of the loop bar 1, the U-shaped air bag 8 is in a shrunken state, the piston 14 is tightly attached to the side wall of one end of the sliding cavity 12, which is close to the operation rod 2, the elastic metal sheet 35 is attached to the inner wall of the annular groove 34, and the condensation air bag 36 is in a shrunken state; holding the holding ring 18 and pushing the sliding rod 15 to approach the loop bar 1 through the push pull ring 17, the sliding rod 15 drives the operation rod 2 to slide along the loop bar 1, so that the elastic ring 3 gradually extends out of the tail end of the loop bar 1, the elastic ring 3 gradually expands under the elastic action along with the gradual extension of the elastic ring 3 out of the loop bar 1, when the elastic ring 3 completely extends out of the loop bar 1, the elastic ring 3 completely expands, the elastic air bag 38 is pressed at the moment, the elastic air bag 38 is pressed to supply air to the first air channel 7 through the air supply pipe 39 and the air inlet hole 19, the air is inflated to the U-shaped air bag 8 through the first air channel 7, the air outlet hole 20, the hose and the air inflation port 9, the U-shaped air bag 8 is inflated to drive the specimen collection bag 4 to be rapidly expanded downwards, the expanded elastic ring 3 is matched to realize full expansion, tumor resections are placed into the specimen collection bag 4 by matching with other surgical instruments such as a grasping forceps, then the operation rod 2 is pulled back to drive the elastic ring 3 to retract into the loop bar 1, the operation rod 2 is pulled back by the slide rod 15, the slide rod 15 drives the piston 14 to slide in the slide cavity 12, so that the piston 14 generates negative pressure at the second air passage 16, the air in the U-shaped air bag 8 is pumped out into the cavity A by the second air passage 16, the specimen collection bag 4 is conveniently closed, meanwhile, the volume of the cavity B is reduced, the air in the cavity B enters the third air passage 33 by the elastic telescopic hose 43, the condensation air bag 36 is inflated and swells, the condensation air bag 36 pushes the elastic metal sheets 35 to move towards the axis direction of the operation rod 2, the free ends of the groups of the elastic metal sheets 35 synchronously draw close towards the center, the diameter of a through hole surrounded by the groups of the elastic metal sheets 35 is reduced, when the piston 14 moves to the inner wall of one end of the slide cavity 12 far away from the operation rod 2, the slide rod 15 is continuously pulled, the operation rod 15 drives the operation rod 2 to move, the operation rod 2 drives the elastic ring 3 to retract into the loop bar 1, and the through holes surrounded by the plurality of groups of elastic metal sheets 35 promote the bag opening of the specimen collection bag 4 to move and close along the elastic ring 3 while accelerating the contraction speed of the elastic ring 3.

In the operation process, if the opening angle of the elastic ring 3 needs to be adjusted, the adjusting rack 24 is driven to move by stirring the bulge 28, the adjusting rack 24 drives the adjusting toothed ring 23 to rotate, and the adjusting toothed ring 23 drives the operating rod 2 to synchronously rotate through the positioning component 27, so that the opening angles of the elastic ring 3 and the specimen collection bag 4 are adjusted.

If in the operation process, after the elastic ring 3 is retracted into the loop bar 1, when the specimen collection bag 4 needs to be opened again, the holding ring 18 is held and the slide bar 15 is pushed to be close to the loop bar 1 by the push pull ring 17, the slide bar 15 drives the piston 14 to move close to the cavity a, the piston 14 generates negative pressure at the third air passage 33, so that the air of the condensation air bag 36 is pumped back into the cavity B, the plurality of groups of elastic metal sheets 35 reset under the action of elastic force, meanwhile, the air in the cavity a is pushed by the piston 14 to be sent into the U-shaped air bag 8 again through the second air passage 16, when the piston 14 is attached to the side wall of one end of the slide cavity 12 close to the operation bar 2, the slide bar 15 drives the operation bar 2 to move along with the continued pushing of the slide bar 15, the operation bar 2 drives the elastic ring 3 to gradually stretch out from the tail end of the loop bar 1, and the loop 45 can be driven to slide along the elastic ring 3 by pulling the reset rope 46, so that the specimen collection bag 4 is opened again.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.

Claims

1. The utility model provides a clinical tumour sample of neurosurgery gets thing ware, includes loop bar, action bars, elastic ring and sample collection bag, the inside through-hole that link up that is equipped with of loop bar, the action bars is slided and is located in the loop bar, the tail end of action bars is located to the elastic ring, the sample collection bag is equipped with the cavity that runs through along the sack, in its characterized in that was worn to locate by the elastic ring: an adjusting mechanism is arranged between the head end of the loop bar and the operating bar, a first air passage is arranged in the operating bar, a U-shaped air bag is arranged in the specimen collection bag, the U-shaped air bag is longitudinally arranged along the inner wall of the specimen collection bag, two ends of the U-shaped air bag are circumferentially extended along the inner wall of the specimen collection bag and are provided with an air charging port and an air exhausting port, the head end of the operating bar is provided with an air supply assembly, one end of the first air passage is communicated with the air charging port, and the air supply assembly is communicated with the other end of the first air passage and charges the U-shaped air bag through the first air passage; the head end of action bars is equipped with the smooth chamber, the head end in smooth chamber is equipped with the slide hole, the slip is equipped with the piston in the smooth chamber, piston one side is equipped with the slide bar, the tip of slide bar runs through the slide hole and locates the smooth chamber outside, the inside second air flue that is equipped with along the axial of action bars, the one end and the U-shaped gasbag intercommunication of second air flue, the other end and the smooth chamber intercommunication of second air flue.

2. The neurosurgical clinical tumor specimen extractor of claim 1, wherein: the head end of the operating rod is provided with an air inlet communicated with the head end of the first air passage, the tail end of the operating rod is provided with an air outlet communicated with the tail end of the first air passage, the air outlet is communicated with the air charging port through a hose, the air supply assembly is communicated with the air inlet, the air inlet is provided with a one-way valve, and the second air passage is communicated with the air suction port through a hose.

3. The neurosurgical clinical tumor specimen extractor of claim 2, wherein: the adjusting mechanism comprises an adjusting end, an adjusting toothed ring and an adjusting rack, wherein the adjusting end is coaxially arranged at the head end of the loop bar, a through sliding through hole is formed in the adjusting end, the operating rod slides to penetrate through the sliding through hole, a rotating groove is formed in the side wall of the sliding through hole along the circumferential direction, the adjusting toothed ring is rotationally arranged in the rotating groove, gear teeth are arranged on the outer wall of the adjusting toothed ring, a push-pull sliding hole communicated with the rotating groove is formed in one side of the adjusting end, the adjusting rack slides to penetrate through the push-pull sliding hole, gear teeth are formed in one side, close to the adjusting toothed ring, of the adjusting rack, the adjusting rack is meshed with the adjusting toothed ring, a positioning component is arranged between the operating rod and the inner wall of the adjusting toothed ring, and the operating rod is axially and fixedly connected with the adjusting toothed ring in the circumferential direction through the positioning component.

4. A neurosurgical clinical tumor specimen extractor according to claim 3, wherein: the novel air-filling device is characterized in that a third air passage is formed in the loop bar, an annular groove is formed in the tail end of the inner wall of the loop bar along the circumferential direction, elastic metal sheets are arranged in the annular groove in an array mode, one ends of the elastic metal sheets are fixedly connected with the inner wall of the annular groove, the elastic metal sheets are distributed around the axis of the loop bar in a circumferential array mode, a condensation air bag is arranged between the elastic metal sheets and the inner wall of the annular groove, the tail end of the third air passage is communicated with the condensation air bag, and an air filling hole is formed in the head end of the third air passage.

5. The neurosurgical clinical tumor specimen extractor of claim 4, wherein: the air supply assembly comprises an elastic air bag and an air supply pipe, the elastic air bag is arranged on the side wall of the sliding cavity, one end of the elastic air bag is communicated with the air inlet through the air supply pipe, the air supply pipe is in threaded connection with the air inlet, an air inlet is formed in the other end of the elastic air bag, and a one-way air inlet valve is arranged in the air inlet.

6. The neurosurgical clinical tumor specimen extractor of claim 5, wherein: the sliding cavity is provided with a condensed air pipe communicated with one end close to the sliding hole, an elastic telescopic hose is communicated between the condensed air pipe and the inflation hole, and a sealing gasket is arranged at the sliding hole.

7. The neurosurgical clinical tumor specimen extractor of claim 6, wherein: the locating component comprises a fixing groove, a sliding groove and a locating column, wherein the fixing groove is formed in the inner wall of the adjusting toothed ring, the sliding groove is formed in the outer wall of the operating rod, the sliding groove is axially distributed along the operating rod, the fixing groove and the sliding groove form a containing through hole, the locating column is rotationally arranged in the containing through hole, and the locating column is clamped in the rotating groove.

8. The neurosurgical clinical tumor specimen extractor of claim 7, wherein: the two ends of the cavity are provided with lantern rings, the lantern rings are sleeved on the elastic rings in a sliding way, the lantern rings are respectively connected with reset ropes, the operating rod is axially provided with a pull rope channel, the tail end of the stay cord passageway runs through the tail end of the operating rod, the head end of the stay cord passageway is communicated with and is provided with a bending passageway, and the free end of the reset rope stretches out from the head end of the operating rod after passing through the stay cord passageway and the bending passageway.

9. The neurosurgical clinical tumor specimen extractor of claim 8, wherein: one side of the sliding rod, which is far away from the sliding cavity, is provided with a push pull ring, and the head end of the sleeve rod is symmetrically provided with a holding ring.

10. The neurosurgical clinical tumor specimen extractor of claim 9, wherein: the side wall of the adjusting rack is provided with a poking protrusion.