CN115024771A

CN115024771A - Aspirator pipe for spinal surgery

Info

Publication number: CN115024771A
Application number: CN202210600901.9A
Authority: CN
Inventors: 丁凡; 张学俊; 霍继东
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-09-09
Anticipated expiration: 2042-05-30
Also published as: CN115024771B

Abstract

The application relates to the field of surgical instruments, and particularly discloses a spinal surgery aspirator tube, which comprises a head end, a tube body and a tail end, wherein the head end, the tube body and the tail end are sequentially communicated, the tail end is used for being connected with an aspirator, a plurality of suction holes communicated with an inner cavity of the head end are formed in the head end, a suction control structure is arranged on the tube body, the head end comprises a straight-through part and a bent part which are integrally formed, the free end of the bent part is closed, an included angle is formed between the straight-through part and the bent part, the bent part is flat, and a straight area is arranged on one side of the bent part, which is far away from the straight-through part; attract the hole including locating the first hole of drawing of kink free end and locating the second of straight through portion perisporium and attract the hole, the lateral wall that the kink is close to straight through portion also is equipped with the second and attracts the hole, and first attraction hole is established to the slot hole and its aperture along the flat thickness direction of kink is 1 ~ 1.8mm, and the second attracts the hole aperture to be 1 ~ 1.8 mm. This application has need not to change special apparatus many times when carrying out spinal surgery in succession, and can effectively avoid attracting the effect that the hole blockked up.

Description

Aspirator pipe for spinal surgery

Technical Field

The application relates to the field of surgical instruments, in particular to an aspirator tube for spinal surgery.

Background

The suction apparatus tube is a common apparatus used in spinal surgery, and is mainly used for absorbing bleeding, liquefied tissue fluid, smoke and dust generated in the process of electric knife cauterization in the operation process, preventing the liquid from blocking the operation visual field, avoiding the operation personnel from sucking harmful gas and the like, and is connected with an air suction hose of the suction apparatus when in use. In spinal surgery, lumbar disc resection and spinal canal decompression are often required, the intervertebral disc needs to be resected in the operation, and when the intervertebral disc is treated, a large amount of crushed nucleus pulposus and fibrous ring tissues can be generated when an intervertebral disc reamer is used for treating an intervertebral space, so that the blockage of an aspirator is easily caused; in addition, when the upper and lower end plates are treated, a large amount of debris is easily generated, and at the same time, when bleeding is more in the operation, because the operation visual field is small, the operation space is small, if the suction apparatus is frequently blocked, the operation process is affected, even the nerve, the dura mater and the like are possibly damaged due to poor operation field, and therefore the aperture of the suction hole of the suction apparatus needs to be set to be large enough.

And after the vertebral canal decompression operation is finished, the spinal column bone grafting fusion operation is needed, cancellous bone grains need to be implanted and compacted by using a special instrument in the bone grafting process, and meanwhile, residues and blood seepage in the operation need to be continuously pumped so as to ensure the compactness of the bone grains. However, the diameter of the bone particles is 2-5mm, the inner diameter of the pipe orifice of the current common suction apparatus is about 2-5mm, and the bone particles are easily sucked away by using the suction apparatus pipe with larger-aperture suction holes, so that the bone grafting amount is influenced; the suction apparatus tube using the suction holes with smaller aperture is easy to block the tube mouth by the bone particles or the nucleus pulposus and the fibrous ring tissues, and at this time, the suction apparatus tube needs to be taken down and the bone particles can be removed by using a special poker or a syringe. Therefore, the operation time is prolonged through multiple operations, the pollution probability in the operation process is increased, the bleeding amount is increased, and the probability of occurrence of postoperative complications is increased.

Disclosure of Invention

In order to solve the problems that the blockage of an aspirator tube is frequent during the spinal surgery and special instruments need to be replaced to press bones so as to influence the surgery efficiency, the application provides the aspirator tube for the spinal surgery.

The utility model provides an aspirator pipe for spinal surgery adopts following technical scheme:

a suction apparatus tube for spinal surgery comprises a head end, a tube body and a tail end, wherein the head end, the tube body and the tail end are sequentially communicated, the tail end is used for being connected with a suction apparatus, a plurality of suction holes communicated with an inner cavity of the head end are formed in the head end, a suction control structure is arranged on the tube body, the head end comprises a straight-through portion and a bent portion which are integrally formed, the free end of the bent portion is closed, an included angle is formed between the straight-through portion and the bent portion, the bent portion is flat, and a straight area is arranged on one side, away from the straight-through portion, of the bent portion;

the suction holes comprise first suction holes arranged at the free ends of the bending portions and second suction holes arranged on the peripheral walls of the straight portions, the side walls of the straight portions, adjacent to the bending portions, are also provided with the second suction holes, the first suction holes are long holes, the hole diameter of the first suction holes along the flat thickness direction of the bending portions is 1-1.8 mm, and the hole diameter of the second suction holes is 1-1.8 mm.

By adopting the technical scheme, when the suction device is used, the tail end is connected with the air exhaust hose of the suction device, the head end is stretched into an operation area in the process of performing lumbar discectomy and intervertebral fusion, the suction device is started, and negative pressure can be formed at the first suction holes and the second suction holes of the head end so as to suck the crushed nucleus pulposus, the fibrous ring tissues, the end plate fragments and the like in the operation area into the tube body; in the process, the first suction holes are long and the actual opening area of the first suction holes is far larger than the aperture of the second suction holes, so that the first suction holes can still keep a good suction effect even if the second suction holes are blocked, and the probability of blockage of the suction holes when the suction tube is applied to the lumbar discectomy and the intervertebral fusion can be greatly reduced.

Then, in the process of spine bone fusion implantation, after bone particles are implanted at the operation part, the bone particles need to be compacted, at the moment, because the bending part on the head end is provided with the straight area, the bending part can be directly used for compacting the bone particles, special instruments do not need to be replaced after the aspirator tube is taken out, and operation efficiency reduction and infection risk caused by the fact that the surgical instruments need to be replaced for many times in the operation process can be effectively avoided; in addition, in the process, because the aperture of the first suction holes and the aperture of the second suction holes are smaller than the particle size of the bone grafting particles, the first suction holes and the second suction holes can also keep the suction effect on blood oozing in the operation at any time, the compactness in the bone maintaining process is further ensured, meanwhile, the bone particles with larger particle sizes cannot be sucked into the tube body, and the bone grafting amount in the bone grafting operation is ensured.

And because the head end comprises straight-through portion and the kink that has the contained angle between the two for when carrying out the canalis spinalis decompression art, this application can also be used for with dura mater or nerve root tractive to one side, protection dura mater or nerve root.

Thereby when carrying out the spinal surgery operation, also when carrying out lumbar disc discectomy, interbody fusion operation spine bone grafting fusion in proper order, this application can play suction postoperative residue, oozing blood effect, also can play the effect of nerve drag hook, can also play bone grain compaction effect to need not to change the surgical instruments many times to the operation scene of difference, reduced the possibility that the patient infects by a wide margin, also greatly improved and executed the operation efficiency.

Optionally, an included angle between the straight portion and the bent portion ranges from 85 degrees to 120 degrees.

Through adopting above-mentioned technical scheme, inject straight portion and kink contained angle size in above-mentioned scope, can effectively ensure that the head end of this application can realize the function of tractive nerve or dura mater, can realize the effect of pressing the bone again.

Optionally, the tube body includes a head tube and a tail tube, and the suction control structure is disposed on the tail tube;

the head tube is made of medical stainless steel or titanium alloy, and the tail tube is made of medical engineering plastics.

By adopting the technical scheme, one part of the tube body is made of medical stainless steel or titanium alloy which can invade a human body, and the other part of the tube body is made of medical engineering plastic with lower cost, so that the production cost and the use cost can be reduced on the premise of ensuring that the application meets the medical standard, and the market popularization is facilitated.

Optionally, the suction control structure includes an adjusting hole penetrating through the circumferential wall of the tube body and an adjusting sheet sliding along the axial direction of the tube body, an area of the adjusting sheet attached to one side of the tube body is larger than an opening area of the adjusting hole, the adjusting hole is a long hole, and the length direction of the adjusting hole is arranged along the axial direction of the tube body;

the pipe body is provided with a limiting mechanism used for limiting the adjusting sheet to be attached to the peripheral wall of the pipe body to slide.

Through adopting above-mentioned technical scheme, stop gear can make the adjustment sheet hug closely at the body outer wall, with reduce the gap between adjustment sheet and the body outer wall, thereby when sliding the adjustment sheet on the body, can change the area of adjustment sheet shutoff regulation hole, also change the aperture that adjustment hole and outside air actually communicate, can change the head end from this and attract the negative pressure size that the hole goes out, also change the suction of this application when suction postoperative residue, need not to execute the operating personnel and go to adjust the aspirator in addition again, the convenience and the precision of attracting hole suction regulation have been improved.

Optionally, a reducing portion is arranged in the inner cavity of the tube body, and the reducing portion is arranged on one side, close to the tail end, of the adjusting hole.

By adopting the technical scheme, when the postoperative residues are sucked, the airflow in the pipe body passes through the diameter-reducing part from the head end to the tail end, and the sectional area of the pipe cavity at the side, close to the tail end, of the diameter-reducing part of the pipe body is increased, so that a low negative pressure area is formed, and the flow speed of the airflow is increased in the process of passing through the diameter-reducing part; therefore, in the process that the air flow carries the postoperative residues to pass through the adjusting holes, on the first hand, the postoperative residues can quickly pass through the area of the pipe body provided with the adjusting holes under the action of high-speed air flow; the low negative pressure zone at the rear part of the diameter-reducing part of the second aspect can form a strong suction effect on the front air flow of the diameter-reducing part and the postoperative residues, so that the probability of the postoperative residues flowing out from the adjusting holes when the pipe body passes through the area with the adjusting holes is greatly reduced, the cleanliness of the application in the application process is ensured as far as possible, and the probability of pollution to the operation environment after the postoperative residues flow out from the adjusting holes is reduced.

Optionally, a blocking piece which penetrates through the adjusting hole and extends into the inner cavity of the tube body is fixedly connected to one side, close to the tube body, of the adjusting sheet;

the baffle plate extends along the air flow suction direction in the pipe body, and a gap is reserved between the baffle plate and the wall of the inner cavity of the pipe body, which is adjacent to the baffle plate.

By adopting the technical scheme, when the postoperative residues are sucked, in the process that the airflow in the pipe body passes through the reducing part from the head end to the tail end, the blocking piece shields the actual opening part of the adjusting hole, so that on one hand, the probability that the postoperative residues flow out of the adjusting hole when the postoperative residues pass through the area of the pipe body provided with the adjusting hole can be effectively avoided; on the other hand, the external air flow can be sucked into the inner cavity of the tube body from the actual opening part of the self-adjusting hole and the gap between the baffle and the inner wall of the tube body, and the suction force control structure can effectively adjust the suction force of the suction hole.

Optionally, the width of the blocking piece along the width direction of the adjusting hole is larger than the width of the adjusting hole, and the part of the blocking piece exceeding the adjusting hole area along the width direction of the adjusting hole is made of a soft material;

the baffle plate is in a bending arc shape along the axial direction of the pipe body, and the outer arc part of the baffle plate is close to the axis of the pipe body.

By adopting the technical scheme, the width of the separation blade is greater than the width of the adjusting hole, the adjusting hole can be protected more comprehensively, the edge part in the width direction of the separation blade is made of soft materials, the separation blade can be smoothly loaded into the pipe body from the adjusting hole, the adjusting blade, the separation blade and the pipe body can be independently processed, the production cost is effectively controlled, and the disposable requirement of the application in use is met more.

When the blocking piece is set to be in an arc shape, the sectional area of the inner cavity of the tube body, which is positioned at the maximum curved surface of the arc part of the blocking piece, is reduced, so that the flow speed is increased when the air flow carries the postoperative residues to pass through the area with the reduced sectional area, and the possibility that the postoperative residues flow out of the adjusting hole from the gap between the blocking piece and the wall of the tube body cavity in the process of passing through the tube body can be further avoided.

Optionally, the limiting mechanism comprises limiting pieces arranged on the circumferential wall of the pipe body at intervals, and damping components used for improving the sliding resistance of the adjusting pieces are arranged on the limiting pieces.

Through adopting above-mentioned technical scheme, when the slip adjustment piece was adjusted in order to adjust the actual open area of regulation hole, certain damping effect can be played to the adjustment piece to enable the adjustment piece and can keep in the adjusting position under the effect of no external force after the regulation is accomplished, improve the convenience when this application uses.

Optionally, the damping assembly includes a shifting block fixedly connected to the adjusting block, the limiting block abuts against the shifting block along the axial side wall of the pipe body, and the abutting parts of the shifting block and the shifting block are respectively provided with a plurality of protrusions and grooves which are matched with each other, and the grooves are arranged in sequence along the axial direction of the pipe body.

Through adopting above-mentioned technical scheme, when adjusting the adjustment sheet, only need slide the shifting block, can realize that the adjustment sheet is along the axial gliding action of body, at this in-process, protruding and a plurality of recess inlay card in proper order can play the damping effect to the shifting block, also can play the location effect, has improved the regulation precision and the stability of adjustment sheet.

Optionally, the length of the bent part is 6-10 mm, and the thickness of the bent part in the flat direction is 3.5-5 mm.

By adopting the technical scheme, the head end can perform residue suction after operation, nerve traction or dura mater or bone pressing operation in an operation area with a narrow space.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first suction holes are designed to be long holes, and the minimum aperture of the first suction holes is smaller than the particle size of bone particles, so that the probability of blockage of the suction holes is greatly reduced when the lumbar discectomy and intervertebral fusion are performed by using the device; due to the arrangement of the bending part and the straight-through part, the spinal canal spinal fusion cage can be used for traction of a dura mater and nerve roots when a spinal canal decompression operation is performed, or can be used for compression of bones and suction of oozing blood when a spinal bone grafting fusion operation is performed; therefore, when the operation is continuously performed, the surgical instruments do not need to be replaced for many times, the possibility of infection of the patient is greatly reduced, and the operation efficiency is also greatly improved;

2. when the adjusting sheet is slid on the pipe body, the area of the adjusting sheet for plugging the adjusting hole can be changed, namely the aperture of the adjusting hole which is actually communicated with the external air is changed, so that the size of the negative pressure from the suction hole at the head end can be changed, namely the suction force of the suction device is changed when the postoperative residues are sucked, an operator does not need to adjust the suction device, and the convenience and the accuracy of suction force adjustment of the suction hole are improved;

3. the reducing part is arranged in the inner cavity of the tube body, so that the flow velocity of the airflow is increased in the process of passing through the reducing part, and the postoperative residues can quickly pass through the area of the tube body provided with the adjusting hole under the action of the high-speed airflow; in the second aspect, the low negative pressure region at the rear part of the reducing part can form a strong suction effect on the airflow at the front part of the reducing part and the postoperative residues, so that the probability of the postoperative residues flowing out from the adjusting holes when the postoperative residues pass through the region of the pipe body provided with the adjusting holes is greatly reduced, the cleanliness of the application process is ensured as much as possible, and the probability of pollution to the operation environment after the postoperative residues flow out from the adjusting holes is reduced;

4. the setting of separation blade, can shelter from the actual opening position in regulation hole, can effectively avoid the postoperative residue to be equipped with the probability that the regulation hole flows out from the regulation hole when the region of regulation hole is walked to the body, and when further establishing the separation blade into the arcuation, the body inner chamber is located the sectional area reduction of separation blade arc portion maximum curved surface department, consequently the air current carries the postoperative residue and increases through the velocity of flow when this sectional area reduces the region, also can further avoid the possibility that the postoperative residue passed in the body from clearance outflow regulation hole between separation blade and the body chamber wall.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a head end according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of another view angle of the head end according to the embodiment of the present application.

Fig. 4 is a schematic structural diagram mainly used for showing a suction control structure in an embodiment of the present application.

Fig. 5 is a schematic sectional view taken along line a-a of fig. 4.

Fig. 6 is a schematic structural view of the limiting piece integrally formed on the console according to the embodiment of the present application.

Reference numerals are as follows: 1. a head end; 11. a straight-through portion; 12. a bending section; 13. a flat area; 2. a pipe body; 21. a head pipe; 22. a final pipe; 23. a console; 3. a terminal end; 31. a connecting pipe; 32. a tightening ring; 41. a first suction hole; 42. a second suction hole; 51. an adjustment hole; 52. a regulating sheet; 53. a diameter reducing portion; 54. a baffle plate; 55. a limiting sheet; 551. a limiting groove; 552. a mounting ring; 561. shifting blocks; 562. a protrusion; 563. and (4) a groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses an aspirator tube for spinal surgery. Referring to fig. 1, the suction apparatus tube for spinal surgery comprises a head end 1, a tube body 2 and a tail end 3, wherein the head end 1, the tube body 2 and the tail end 3 are sequentially communicated, the tail end is used for being connected with a suction apparatus, a plurality of suction holes communicated with an inner cavity of the head end 1 are formed in the head end, and a suction control structure is arranged on the tube body 2. Head end 1 includes integrated into one piece's straight-through portion 11 and kink 12, and kink 12 is the platykurtic and its lateral wall that is close to and deviates from straight-through portion 11 all is equipped with straight region 13, and kink 12 free end is sealed.

Meanwhile, an included angle is formed between the straight portion 11 and the bent portion 12, the included angle ranges from 85 ° to 120 °, and specifically may be 90 °, 105 ° or 115 °, and the included angle is selected to be 90 ° in this embodiment. Based on the consideration of operation space, the outer diameter of the pipe body 2 is selected to be 4-5.5 mm, and a reducing transition part is arranged at one end of the pipe body 2 communicated with the straight part 11; the length of the bending part 12 is 6-10 mm, and in the embodiment, the length is selected to be 8 mm; the thickness of the bent portion 12 in the flat direction is 3.5-5 mm, preferably 4mm in this embodiment.

Referring to fig. 2 and 3, the suction holes include a first suction hole 41 formed at a free end of the bending portion 12 and a second suction hole 42 formed in a peripheral wall of the straight portion 11, the side wall of the bending portion 12 adjacent to the straight portion 11 is also provided with the second suction hole 42, the first suction hole 41 is a long hole, a diameter of the first suction hole in a flat thickness direction of the bending portion 12 is 1-1.8 mm, a diameter of the second suction hole 42 is 1-1.8 mm, the minimum diameter of the second suction hole 42 is consistent with that of the first suction hole 41 in actual installation, and the minimum diameter of the second suction hole 42 and the minimum diameter of the first suction hole 41 can be 1.2mm, 1.5mm, 1.6mm, and the diameter is 1.5mm in the embodiment.

After so setting up, when using this application, will be connected terminal 3 with the hose of bleeding of aspirator earlier, at the in-process that carries out lumbar disc discectomy and interbody fusion art, stretch into head end 1 to the operation area, start the aspirator, can make the first suction hole 41 and a plurality of second suction hole 42 department of head end 1 form the negative pressure to suction to body 2 with broken nucleus pulposus in the operation area, fibrous ring tissue and endplate piece etc.. In the process, the first suction holes 41 are long-hole-shaped, and the actual opening area of the first suction holes 41 is far larger than the aperture of the second suction holes 42, so that even if the second suction holes 42 are blocked, the first suction holes 41 still can keep a good suction effect, and the probability of blockage of the suction holes when the suction tube is applied to the lumbar discectomy and the intervertebral fusion can be greatly reduced.

And then in-process of carrying out the backbone and planting the osteofusion art, after executing the operation position and implanting the bone grain, need carry out the compaction to the bone grain, owing to have straight region 13 on the head end 1 on the kink 12, can directly use the kink 12 of this application to carry out the compaction to the bone grain this moment, need not to change special apparatus again after taking out aspirator pipe, can effectively avoid executing the operation efficiency reduction and the infection risk that the operation in-process needs to be changed operation apparatus many times and lead to. In addition, in the process, because the aperture of each of the first suction holes 41 and the second suction holes 42 is smaller than the particle size of the bone grafting bone particles, the first suction holes 41 and the second suction holes 42 can also keep the suction effect on the blood oozing during the operation at any time, the compactness in the bone maintaining process is further ensured, and meanwhile, the bone particles with larger particle sizes cannot be sucked into the tube body 2, so that the bone grafting amount in the bone grafting operation is ensured.

And because head end 1 comprises straight-through portion 11 and kink 12 that has the contained angle between the two for when carrying out the spinal canal decompression art, this application can also be used for drawing dura mater or nerve root to one side, protects dura mater or nerve root. Thereby when carrying out the backbone surgery operation, also when carrying out lumbar disc discectomy, interbody fusion operation spine bone grafting fusion in proper order, this application can play suction postoperative residue, oozing blood effect, also can play the effect of nerve drag hook, can also play bone grain compaction effect to need not to change the surgical instruments many times to the operation scene of difference, reduced the possibility that the patient infects by a wide margin, also greatly improved and executed the operation efficiency, have great meaning to improving the operation quality.

When actually performing surgery, although the suction apparatus is provided with a suction adjusting system, the situation is variable when actually performing surgery, a user needs to accurately adjust the suction force of the suction apparatus tube, and the suction apparatus is convenient to adjust, and the suction apparatus far away from the surgery performing range is obviously not beneficial to convenient adjustment of the suction force. Therefore, referring to fig. 4, the suction control structure includes an adjusting hole 51 penetrating through the circumferential wall of the tube body 2 and an adjusting tab 52 sliding along the axial direction of the tube body 2, the area of the adjusting tab 52 attached to one side of the tube body 2 is larger than the opening area of the adjusting hole 51, the adjusting hole 51 is a long hole, and the length direction of the adjusting hole 51 is arranged along the axial direction of the tube body 2; the tube body 2 is provided with a limiting mechanism for limiting the sliding of the regulating sheet 52 attached to the circumferential wall of the tube body 2. In actual installation, in order to facilitate the operation of the suction control structure by the operator, the flat console 23 is integrally formed on the tube body 2 at the adjusting hole 51, and the adjusting hole 51 is arranged on the maximum plane of the console 23.

So, stop gear can make the adjustment sheet 52 hug closely at control cabinet 23 outer wall, in order to reduce the gap between adjustment sheet 52 and the control cabinet 23 surface, thereby when slide adjustment sheet 52 on control cabinet 23, can change the area of adjustment sheet 52 shutoff regulation hole 51, also change the aperture that adjustment hole 51 and outside air actually communicate, can change the negative pressure size of head end 1 suction hole department from this, also change the suction of this application when suction postoperative residue, need not to execute the operation personnel and go in addition to adjust the aspirator, the convenience and the precision of suction hole suction regulation have been improved.

However, in practice, because the sucked blood, the broken nucleus pulposus and the anulus fibrosus and other postoperative residues need to be sucked by means of the air flow when circulating in the tube body 2, when the suction force of the aspirator tube is large, the postoperative residues with different densities easily form turbulent flow in the inner cavity of the tube body 2, so that part of the residues can be splashed out of the adjusting hole 51 when passing through the exposed part of the adjusting hole 51. When the suction of the suction tube is reduced by the node after the suction in the operation is finished, the residues are easy to seep out of the adjusting hole 51 after suddenly losing the airflow supporting function, and the defect is particularly obvious when a hose for connecting the suction device and the tail end 3 in the operation is bent during traction; and the postoperative residue that flows out from the regulation hole 51 drips when the body 2 outer wall, has great health safety hidden danger, has great secondary infection risk to the patient. In view of this, the pipe body 2 is provided with an anti-leakage structure at the adjusting hole 51 for preventing the leakage of the residue after the operation.

In one embodiment, referring to fig. 5, the anti-leakage structure comprises a reduced diameter portion 53 disposed in the inner cavity of the tube body 2, the reduced diameter portion 53 is disposed on the side of the adjusting hole 51 near the end 3, the reduced diameter portion 53 is formed in a ring shape coaxial and integrally formed with the tube body 2, and the reduced diameter portion has a transition surface along the axial direction of the tube body 2.

Therefore, when the postoperative residues are sucked, in the process that the airflow in the pipe body 2 passes through the reducing part 53 along the direction from the head end 1 to the tail end 3, as the sectional area of the pipe cavity of the pipe body 2 at the reducing part 53 close to the tail end 3 is increased, a low negative pressure area is formed at the reducing part, the flow speed of the airflow is increased in the process that the airflow passes through the reducing part 53; therefore, in the process of the air flow carrying postoperative residues to pass through the adjusting holes 51, on the first hand, the postoperative residues can rapidly pass through the area of the pipe body 2 provided with the adjusting holes 51 under the action of high-speed air flow; the low negative pressure zone at the rear of the diameter-reducing part 53 of the second aspect can form a strong suction effect on the front air flow of the diameter-reducing part 53 and the postoperative residues, so that the probability that the postoperative residues flow out of the self-adjusting holes 51 when the pipe body 2 passes through the area where the adjusting holes 51 are arranged is greatly reduced, the cleanliness of the application in the application process is ensured as far as possible, and the probability that the postoperative residues cause pollution to the operation environment after flowing out of the self-adjusting holes 51 is reduced.

In another embodiment, referring to fig. 5 as well, the anti-leakage structure includes a blocking plate 54 penetrating through the adjusting hole 51 and extending into the inner cavity of the tube body 2, the blocking plate 54 is fixedly connected to one side of the adjusting plate 52 close to the tube body 2, and the connecting portion between the blocking plate 54 and the adjusting plate 52 is a transition arc; the baffle 54 extends along the direction of sucking the air flow in the tube 2, and a gap is formed between the baffle 54 and the adjacent inner cavity wall of the tube 2.

Therefore, when the postoperative residues are sucked, in the process that the airflow in the pipe body 2 passes through the reducing part 53 from the head end 1 to the tail end 3, the blocking piece 54 blocks the actual opening part of the adjusting hole 51, and on one hand, the probability that the postoperative residues flow out of the adjusting hole 51 when the postoperative residues pass through the area of the pipe body 2 provided with the adjusting hole 51 can be effectively avoided; on the other hand, the external air flow can be sucked into the inner cavity of the tube body 2 from the actual opening part of the adjusting hole 51 and the gap between the baffle 54 and the inner wall of the tube body 2, so that the suction force of the suction hole can be effectively adjusted by the suction force control structure.

More specifically, the width of the blocking piece 54 along the width direction of the adjusting hole 51 is larger than the width of the adjusting hole 51, and the part of the blocking piece 54 beyond the adjusting hole 51 along the width direction of the adjusting hole 51 is made of soft material, while in order to ensure the blocking effect of the blocking piece 54, the length of the blocking piece 54 is smaller than but close to the length of the adjusting hole 51; it should be further clear that the connecting portion between the blocking piece 54 and the adjusting piece 52 and the central line portion of the blocking piece 54 in the length direction are both made of rigid plastic, and both sides of the blocking piece 54 in the width direction are made of soft rubber, such as silicon rubber, so that the blocking piece 54 with a large area can be smoothly inserted into the inner cavity of the tube body 2 from the adjusting hole 51, and the convenient installation of the blocking piece 54 is realized. Therefore, the adjusting sheet 52, the blocking sheet 54 and the tube body 2 can be independently processed, the production cost is effectively controlled, and the disposable requirement of the application in use is better met.

In order to make the baffle plate 54 extend into the inner cavity of the tube body 2 and also have the effect of the reduced diameter portion 53 in the previous embodiment, referring to fig. 5, the baffle plate 54 may be further configured to be curved along the axial direction of the tube body 2 and the outer arc portion thereof is close to the axial line of the tube body 2.

The baffle plate 54 is in an arc shape at this time, and the sectional area of the inner cavity of the tube body 2 at the maximum curved surface of the arc part of the baffle plate 54 is reduced, so that the flow speed is increased when the air flow carrying the postoperative residues passes through the area with the reduced sectional area, the possibility that the postoperative residues flow out of the adjusting hole 51 from the gap between the baffle plate 54 and the wall of the tube body 2 cavity in the process of passing the postoperative residues in the tube body 2 can be further avoided, and the postoperative residue leakage prevention effect of the leakage prevention structure is further improved.

The utility model aims to ensure that the suction tube of the application can meet the cost control requirement of disposable use and ensure the assembly and use convenience of the suction tube of the application. Referring to fig. 1, the tube body 2 includes a head tube 21 and a tail tube 22, the head tube 21 is made of medical stainless steel or titanium alloy, the tail tube 22 is made of medical engineering plastic, the console 23 and the tail tube 22 are integrally formed by the same material, and the head tube 21 and the tail tube 22 can be hermetically connected in a screw connection and sealing ring manner or in a clamping and sealing ring manner. On last pipe 22 was located to foretell suction control structure, terminal 3 included integrated into one piece on last pipe 22 and the pipe diameter is less than the connecting pipe 31 of last pipe 22, and integrated into one piece has a plurality of rings 32 that support on the connecting pipe 31 outer wall, supports one side that the ring 32 deviates from head pipe 21 and establishes to the inclined plane.

Referring to fig. 4 and 6, the limiting mechanism includes a limiting sheet 55 disposed on the peripheral wall of the console 23 at an interval, the limiting sheet 55 is in a long sheet shape and disposed along the axial direction of the terminal tube 22, a damping component for improving the sliding resistance of the adjusting sheet 52 is disposed on the limiting sheet 55, and the limiting sheet 55 may be integrally formed on the console 23 or may be sleeved between the terminal tube 22 and the head tube 21 by means of a detachable structure of the head tube 21 and the terminal tube 22.

Referring to fig. 4 and 6, the damping assembly includes a shifting block 561 fixedly connected to the adjusting piece 52, the limiting piece 55 abuts against the shifting block 561 along the axial side wall of the pipe body 2, and the abutting portions of the shifting block 561 and the shifting block 561 are respectively provided with a protrusion 562 and a groove 563 which are matched, the groove 563 is provided with a plurality of grooves and is sequentially arranged along the axial direction of the pipe body 2, and the groove 563 is set as a tooth socket.

In other embodiments, several positioning grooves with larger opening areas are further selected at intervals among the plurality of grooves 563 to realize the pause feeling of the protrusions 562 at the positioning grooves and form tactile scales, so that the operator can sense the tactile scales when the operator dials the dial 561 to realize the suction adjustment of the aspirator tubes of the present application, thereby improving the blind operation performance of the present application.

Or in other embodiments, the distance between the limiting sheet 55 and the outer wall of the console 23 may be set to be unequal, for example, gradually increasing along the direction from the head tube 21 to the tail tube 22, so that when the operator pulls the shifting block 561 to approach the head tube 21, the actual opening area of the adjusting hole 51 is opened to the maximum, at this time, the suction force of the aspirator tube is the maximum, that is, the larger the suction force to be adjusted is, the larger the resistance force the operator receives during adjustment is, and the tactile feedback of the suction force adjustment of the aspirator tube can also be formed.

In order to achieve the damping effect of the damping assembly, the protrusions 562 need to be sufficiently tightly abutted against the side wall of the limiting plate 55. Therefore, in one embodiment, referring to fig. 4, the position-limiting sheet 55 is provided with a position-limiting groove 551 extending along the length direction thereof and aligned with the adjusting hole 51, the position-limiting groove 551 extends through the free end of the position-limiting sheet 55, and the position-limiting groove 551 is slidably fitted with the protrusion 562; the position-limiting sheet 55 is provided with a plurality of grooves 563 on one side or two side walls of the position-limiting groove 551, and correspondingly, the protrusions 562 are fixed on one side of the shifting block 561 close to the grooves 563.

In this embodiment, in order to facilitate the installation of the adjusting piece 52 and the blocking piece 54, in order to prevent the limiting piece 55 from interfering the normal installation of the blocking piece 54, referring to fig. 4, the limiting piece 55 is detachably connected to the tail pipe 22, specifically, one end of the limiting piece 55 is fixedly connected to the installation ring 552 which is sleeved on the end part of the tail pipe 22 close to the head pipe 21, the installation ring 552 is fixedly installed on the tail pipe 22 through the connection of the head pipe 21 and the tail pipe 22, the convenience and the stable installation of the limiting piece 55 are realized, the processing and the assembling process of the aspirator pipe of the present application are simplified, and meanwhile, the production cost is also reduced.

In another embodiment, referring to fig. 6, the position-limiting sheet 55 is integrally formed on the outer wall of the console 23, and one side of the length direction of the position-limiting sheet 55 is flush with one side of the hole wall of the adjusting hole 51, so that after the adjusting sheet 52 is installed on the tail pipe 22, the protrusions 562 directly abut against the side wall of the position-limiting sheet 55, and do not interfere with the installation of the blocking sheet 54.

The implementation principle of the aspirator tube for spinal surgery in the embodiment of the application is as follows: when carrying out the spinal surgery operation, also when carrying out lumbar disc discectomy, interbody fusion operation spine bone grafting fusion in proper order, this application can play suction postoperative residue, oozing blood effect, also can play nerve drag hook effect, can also play bone grain compaction effect to need not to change the surgical instruments many times to the operation scene of difference, reduced the possibility that the patient infects by a wide margin, also greatly improved and executed the operation efficiency. And by means of the long hole arrangement of the first suction hole 41, the phenomenon that the suction tube is blocked can be greatly avoided, and great guarantee is provided for the spinal surgery.

When the suction force of the suction pipe needs to be adjusted, the poking block 561 is poked to enable the adjusting sheet 52 to slide on the outer wall of the tail pipe 22 so as to change the actual opening area of the adjusting hole 51, and therefore the adjustment of the suction force in the suction hole is achieved; in the process, the diameter-reducing part 53 arranged on the inner wall of the tail pipe 22 can increase the speed of the air flow to clamp the postoperative residues through the part of the tail pipe 22 provided with the adjusting hole 51, and further can effectively relieve the phenomenon of leakage of the postoperative residues from the adjusting hole 51 caused by the sudden drop of the suction force in the tail pipe 22. Or the baffle plate 54 extending into the inner cavity of the tail pipe 22 can protect the actual opening part of the adjusting hole 51 and can effectively avoid the probability that postoperative residues flow out from the adjusting hole 51 when the postoperative residues pass through the area of the pipe body 2 provided with the adjusting hole 51. Therefore, the reliability and the safety of the suction device pipe can be obviously improved by arranging the anti-leakage structure.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a spinal surgery is aspirator pipe for operation, is including head end (1), body (2) that communicate in proper order and be used for terminal (3) be connected with the aspirator, set up a plurality of rather than the suction hole of inner chamber intercommunication on head end (1), be provided with suction control structure, its characterized in that on body (2): the head end (1) comprises a straight-through part (11) and a bent part (12) which are integrally formed, the free end of the bent part (12) is closed, an included angle is formed between the straight-through part (11) and the bent part (12), the bent part (12) is flat, and a flat area (13) is arranged on one side of the bent part (12) away from the straight-through part (11);

attract the hole including locating first attraction hole (41) of kink (12) free end and locating second attraction hole (42) of straight portion (11) perisporium, kink (12) are close to the lateral wall of straight portion (11) also is equipped with second attraction hole (42), first attraction hole (41) are established to the slot hole and its edge the aperture of the flat thickness direction of kink (12) is 1 ~ 1.8mm, second attraction hole (42) aperture is 1 ~ 1.8 mm.

2. The aspirator tube for spinal surgery of claim 1, wherein: the included angle between the straight-through part (11) and the bending part (12) ranges from 85 degrees to 120 degrees.

3. The aspirator tube for spinal surgery of claim 1, wherein: the tube body (2) comprises a head tube (21) and a tail tube (22), and the suction control structure is arranged on the tail tube (22);

the head tube (21) is made of medical stainless steel or titanium alloy, and the tail tube (22) is made of medical engineering plastic.

4. A spinal surgical aspirator tube according to any of claims 1-3, wherein: the suction control structure comprises an adjusting hole (51) formed in the peripheral wall of the pipe body (2) in a penetrating mode and an adjusting sheet (52) sliding along the axial direction of the pipe body (2), the area, attached to one side of the pipe body (2), of the adjusting sheet (52) is larger than the opening area of the adjusting hole (51), the adjusting hole (51) is a long hole, and the length direction of the adjusting hole is arranged along the axial direction of the pipe body (2);

the pipe body (2) is provided with a limiting mechanism for limiting the adjusting sheet (52) to be attached to the peripheral wall of the pipe body (2) to slide.

5. The aspirator tube for spinal surgery of claim 4, wherein: a reducing part (53) is arranged in the inner cavity of the pipe body (2), and the reducing part (53) is arranged on one side of the adjusting hole (51) close to the tail end (3).

6. The aspirator tube for spinal surgery of claim 4, wherein: a blocking piece (54) which penetrates through the adjusting hole (51) and extends into the inner cavity of the pipe body (2) is fixedly connected to one side, close to the pipe body (2), of the adjusting piece (52);

the baffle plate (54) extends along the air flow suction direction in the pipe body (2), and a gap is formed between the baffle plate (54) and the adjacent inner cavity wall of the pipe body (2).

7. The aspirator tube for spinal surgery of claim 6, wherein: the width of the baffle plate (54) along the width direction of the adjusting hole (51) is larger than the width of the adjusting hole (51), and the part of the baffle plate (54) exceeding the area of the adjusting hole (51) along the width direction of the adjusting hole (51) is made of soft materials;

the baffle plate (54) is in a bending arc shape along the axial direction of the pipe body (2), and the outer arc part of the baffle plate is close to the axis of the pipe body (2).

8. The aspirator tube for spinal surgery of claim 4, wherein: the limiting mechanism comprises limiting pieces (55) arranged on the peripheral wall of the pipe body (2) at intervals, and damping components used for improving the sliding resistance of the adjusting pieces (52) are arranged on the limiting pieces (55).

9. The aspirator tube for spinal surgery of claim 8, wherein: the damping assembly comprises a shifting block (561) fixedly connected to the adjusting piece (52), the limiting piece (55) abuts against the shifting block (561) along the axial side wall of the pipe body (2) and is provided with a protrusion (562) and a groove (563) which are matched with each other, and the grooves (563) are formed in the abutting parts, and are arranged in sequence along the axial direction of the pipe body (2).

10. The aspirator tube for spinal surgery according to any of claims 1-3, wherein: the length dimension of the bending part (12) is 6-10 mm, and the thickness dimension of the bending part (12) in the flat direction is 3.5-5 mm.