CN113893024B - Direction-adjustable high-temperature steam ablation needle device - Google Patents
Direction-adjustable high-temperature steam ablation needle device Download PDFInfo
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- CN113893024B CN113893024B CN202111198029.1A CN202111198029A CN113893024B CN 113893024 B CN113893024 B CN 113893024B CN 202111198029 A CN202111198029 A CN 202111198029A CN 113893024 B CN113893024 B CN 113893024B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00964—Features of probes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid
- A61B2018/048—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid in gaseous form
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/007—Aspiration
Abstract
The invention discloses a direction-adjustable high-temperature steam ablation needle device, which comprises a needle tube, a heat insulation sleeve, a direction adjusting tube, an adjusting driving rod and a direction adjusting mechanism, wherein the needle tube is arranged on the heat insulation sleeve; steam outlet holes are distributed on the pipe wall of the extending end of the needle pipe; the direction adjusting tube is arranged inside the needle tube; rectangular holes are formed in the direction adjusting pipes; the adjusting driving rod is fixed on the direction adjusting pipe; the rotation of the adjustment drive lever is adjusted by the direction adjustment mechanism. The direction-adjustable high-temperature steam ablation needle device utilizes the matching arrangement of the air inlet pipe, the needle tube and the steam outlet hole, so that steam is led into the corresponding position for high-temperature ablation, and the steam can be liquefied into water after ablation, so that the steam can be conveniently sucked out; the steam outlet holes in the corresponding directions are communicated by rotating the adjusting direction adjusting tube, so that the ablation direction is adjusted; the direction adjusting tube can be rotationally adjusted and positioned by utilizing the cooperation of the adjusting driving rod and the direction adjusting mechanism.
Description
Technical Field
The invention relates to an ablation needle device, in particular to a high-temperature steam ablation needle device with adjustable direction.
Background
At present, an ablation needle is a main operation tool for ablation operation, when in use, the ablation needle is penetrated into a tumor central area through skin, a micro microwave oven with the size of 1 millimeter is arranged at a certain point of a microwave needle, and the microwave magnetic field released by the micro microwave oven can enable surrounding molecules to rotate at a high speed and raise the temperature through friction, so that the tissue is coagulated, dehydrated and necrotized, and the aim of treatment is fulfilled. However, the existing microwave ablation mode can only be spherical ablation, is not directional, and if the shape of the tumor is irregular, the problem that normal tissues are ablated by adopting the microwave ablation when the edge of the tumor is ablated can occur.
Disclosure of Invention
The invention aims to: a direction-adjustable high-temperature steam ablation needle device is provided, which can control the ablation direction, thereby reducing the damage to normal tissues during the ablation operation.
The technical scheme is as follows: the invention relates to a direction-adjustable high-temperature steam ablation needle device, which comprises a side clamping mechanism, an ablation needle mechanism and a direction adjusting mechanism; the ablation needle mechanism comprises a needle tube, a heat insulation sleeve, a sheath tube, a direction adjusting tube and an adjusting driving rod;
the heat insulation sleeve is sleeved and fixed on the upper part of the needle tube, the lower end of the needle tube extends out of the lower end of the heat insulation sleeve, and the lower end of the needle tube is provided with a cone puncture tip; the heat insulation sleeve is inserted and installed on the sheath tube in a penetrating way, a sealing end is fixedly arranged at the upper end of the heat insulation sleeve, and a heat insulation handle tube is fixedly arranged on the sealing end; an air inlet pipe is arranged on the heat insulation handle pipe in a penetrating way and communicated with the needle tube; steam outlet holes are distributed on the pipe wall of the extending end of the needle pipe; the direction adjusting pipe is slidably arranged in the lower end of the needle tube, and the outer wall of the direction adjusting pipe is close to the inner wall of the needle tube; the lower end of the direction adjusting pipe is closed, and a rectangular hole is arranged on the pipe wall of the direction adjusting pipe; the lower end of the adjusting driving rod is fixedly arranged at the upper end of the direction adjusting pipe, and the upper end of the adjusting driving rod penetrates through and extends out of the sealing end;
the direction adjusting mechanism is fixedly arranged on the sealing end head, the upper end of the adjusting driving rod is arranged on the direction adjusting mechanism, and the rotation of the adjusting driving rod is adjusted by the direction adjusting mechanism; the sheath tube is clamped and fixed on the side clamping mechanism, and the clamping position and the inclination angle of the sheath tube are adjusted by the side clamping mechanism.
Further, a lower positioning flange is arranged on the pipe orifice at the upper end of the sheath pipe, and positioning columns are distributed on the lower positioning flange; an upper positioning flange is arranged at the upper part of the heat insulation sleeve, and positioning holes are distributed on the upper positioning flange; when the lower positioning flange is in butt joint with the upper positioning flange, the positioning column is inserted into the corresponding positioning hole.
Further, a positioning rubber ring is sleeved on the sheath tube, a supporting circular ring is fixedly installed on the positioning rubber ring, and a flexible supporting pad is arranged on the lower side face of the supporting circular ring.
Further, the side clamping mechanism comprises a clamping ring sleeve, a connecting rod, a telescopic rod, an L-shaped sleeve, a lifting rod and a C-shaped clamping seat; a clamping pressing bolt is rotatably arranged on the penetrating thread on the clamping ring sleeve, and a movable clamping arc plate is rotatably arranged on the inner end part of the clamping pressing bolt; a fixed clamping arc plate is fixedly arranged on the inner wall of the clamping ring sleeve; the sheath tube penetrates through the clamping ring sleeve and is clamped between the movable clamping arc plate and the fixed clamping arc plate; one end of the connecting rod is fixed on the clamping ring sleeve, and the other end of the connecting rod is connected with the end part of the telescopic rod through the spherical hinge mechanism; the telescopic rod is inserted into one end pipe orifice of the L-shaped sleeve, and the lifting rod is inserted into the other end pipe orifice of the L-shaped sleeve; the C-shaped clamping seat is fixedly arranged on the lifting rod, and a clamping fixing bolt is arranged on the C-shaped clamping seat in a penetrating threaded screwing manner; a pair of clamping plates is rotatably arranged on the end part of the clamping fixing bolt.
Further, the spherical hinge mechanism comprises a spherical hinge seat, a spherical hinge head and an angle positioning bolt; the spherical hinge head is fixedly arranged on the connecting rod, the spherical hinge head is spherically hinged on the spherical hinge seat, and the spherical hinge seat is fixedly arranged on the telescopic rod; the angle positioning bolt is screwed on the ball hinge seat, and the end part of the screw rod is pressed on the ball hinge head; a telescopic positioning bolt is arranged at the pipe orifice of one end of the L-shaped sleeve in a penetrating thread screwing way, and the end part of a screw rod of the telescopic positioning bolt is pressed on the telescopic rod; a lifting positioning bolt is arranged at the pipe orifice of the other end of the L-shaped sleeve in a penetrating and screwing way, and the end part of a screw rod of the lifting positioning bolt is pressed on the lifting rod; a telescopic guide chute is arranged on the telescopic rod along the axial direction of the telescopic rod, and a telescopic guide sliding block which is slidably embedded into the telescopic guide chute is arranged at the pipe orifice of the L-shaped sleeve; the lifting rod is provided with a lifting guide chute along the axial direction of the lifting rod, and the pipe orifice of the L-shaped sleeve is provided with a lifting guide sliding block which is slidably embedded into the lifting guide chute.
Further, a connecting side lug which is bent upwards and extends is arranged at the edge of the pipe orifice at the upper end of the direction adjusting pipe, and the connecting side lug is fixed at the lower end of the adjusting driving rod.
Further, the direction adjusting mechanism comprises a rectangular frame and an angle adjusting disc; the rectangular frame is fixedly arranged on the sealing end head; the upper end of the adjusting driving rod penetrates through and stretches into the rectangular frame, the angle adjusting disc is arranged on the stretching-in end of the adjusting driving rod, and the circumferential edge of the angle adjusting disc partially protrudes out of the rectangular frame.
Furthermore, a rotary positioning rod is arranged on the vertical frame of the rectangular frame in a penetrating way; the circumferential surface of the angle adjusting disc is provided with an annular groove, and rotary positioning teeth are arranged in the annular groove at intervals; an end convex ring is fixedly arranged at the outer end of the rotary positioning rod; a rebound tension spring is sleeved on the rotary positioning rod; one end of the rebound tension spring is fixed on the end convex ring, and the other end of the rebound tension spring is fixed on the rectangular frame and is used for pulling the inner end of the rotary positioning rod to be inserted into a gap between two adjacent rotary positioning teeth.
Further, a push-pull mechanism is arranged at the upper part of the rectangular frame and is used for axially pushing and pulling the adjusting driving rod; a central synchronous hole is formed in the center of the angle adjusting disc, and a synchronous driving sliding block is arranged on the wall of the central synchronous hole; a synchronous bar-shaped chute is axially arranged on the upper rod wall of the adjusting driving rod; the synchronous driving sliding block is slidably arranged in the synchronous bar-shaped sliding groove.
Further, the push-pull mechanism comprises a push-pull screw rod and a push-pull driving disc; a partition plate is arranged at the upper part of the inner side of the rectangular frame, and a push-pull driving disc is clamped between the partition plate and the upper side frame of the rectangular frame; a push-pull threaded hole is formed in the center of the push-pull driving disc; the lower end of the push-pull screw rod is rotatably arranged at the upper end of the adjusting driving rod, and the upper end of the push-pull screw rod penetrates through the partition plate and the upper side frame of the rectangular frame and is screwed with the push-pull threaded hole; a limiting chute is arranged on the rod wall of the push-pull screw rod along the axial direction of the rod wall; and a limit sliding block which is slidably embedded in the limit sliding groove is arranged on the partition plate.
Compared with the prior art, the invention has the beneficial effects that: the air inlet pipe, the needle tube and the steam outlet are matched, so that steam is led into the corresponding position for high-temperature ablation, and the steam can be liquefied into water after ablation, so that the steam can be conveniently pumped out; the rectangular holes arranged on the pipe wall of the direction adjusting pipe are utilized, so that the steam outlet holes in the corresponding direction are conducted through rotating the direction adjusting pipe, and the ablation direction is adjusted; the heat insulation sleeve can be used for realizing heat insulation of the needle tube, so that scalding to other positions after steam is introduced is prevented; the heat insulation handle tube is utilized to facilitate the handheld operation, so that the insertion depth and angle of the needle tube can be adjusted; the direction adjusting tube can be rotationally adjusted and positioned by utilizing the cooperation of the adjusting driving rod and the direction adjusting mechanism.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of an ablation needle mechanism of the present invention;
FIG. 3 is a schematic view of a partial structure of a lower end section of a needle tube according to the present invention.
Detailed Description
The technical scheme of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1:
as shown in fig. 1 to 3, the direction-adjustable high temperature steam ablation needle device of the present invention includes: a side clamping mechanism, an ablation needle mechanism and a direction adjusting mechanism; the ablation needle mechanism comprises a needle tube 1, a heat insulation sleeve 2, a sheath tube 3, a direction adjusting tube 28 and an adjusting driving rod 15;
the heat insulation sleeve 2 is sleeved and fixed on the upper part of the needle tube 1, the lower end of the needle tube 1 extends out of the lower end of the heat insulation sleeve 2, and a cone-shaped puncture tip 8 is arranged at the lower end of the needle tube 1; the heat insulation sleeve 2 is inserted and installed on the sheath tube 3 in a penetrating way, a sealing end head 4 is fixedly arranged at the upper end of the heat insulation sleeve 2, and a heat insulation handle tube 5 is fixedly arranged on the sealing end head 4; an air inlet pipe 6 is arranged on the heat insulation handle pipe 5 in a penetrating way, the air inlet pipe 6 is communicated with the needle tube 1, and a butt joint external thread is arranged on the air inlet pipe 6; steam outlet holes 7 are distributed on the pipe wall of the extending end of the needle tube 1, and the steam outlet holes 7 are vertically arranged on the pipe wall of the extending end of the needle tube 1 in four rows; the direction adjusting tube 28 is slidably arranged in the lower end of the needle tube 1, and the outer wall of the direction adjusting tube 28 is close to the inner wall of the needle tube 1; the lower end of the direction regulating pipe 28 is closed, a rectangular hole 29 is arranged on the pipe wall of the direction regulating pipe 28, and the size of the rectangular hole 29 is set so that only the upper steam outlet hole and the lower steam outlet hole 7 in the same column can be conducted at a time; the lower end of the adjusting driving rod 15 is fixedly arranged on the upper end of the direction adjusting pipe 28, and the upper end of the adjusting driving rod 15 penetrates through and extends out of the sealing end 4;
the direction adjusting mechanism is fixedly arranged on the sealing end head 4, the upper end of the adjusting driving rod 15 is arranged on the direction adjusting mechanism, and the rotation of the adjusting driving rod 15 is adjusted by the direction adjusting mechanism; the sheath tube 3 is clamped and fixed on the side clamping mechanism, and the clamping position and the inclination angle of the sheath tube 3 are adjusted by the side clamping mechanism.
The clamping positions and the inclined angles of the needle tube 1 and the sheath tube 3 can be adjusted by utilizing the side clamping mechanism, so that the surgical requirements of different positions and angles during the ablation surgery are met; the air inlet pipe 6, the needle tube 1 and the steam outlet 7 are matched, so that steam is led into the corresponding position for high-temperature ablation, and the steam can be liquefied into water after ablation, so that the steam can be conveniently pumped out; the rectangular holes 29 arranged on the pipe wall of the direction adjusting pipe 28 are utilized, so that the steam outlet holes 7 in the corresponding direction are conducted through rotating the direction adjusting pipe 28, and the ablation direction is adjusted; the heat insulation sleeve 2 can be used for realizing the heat insulation of the needle tube 1 and preventing other positions from being scalded after steam is introduced; the insulation handle tube 5 is used for facilitating the handheld operation, so that the insertion depth and angle of the needle tube 1 can be adjusted; the direction adjusting tube 28 can be rotationally adjusted and positioned by the cooperation of the adjusting driving rod 15 and the direction adjusting mechanism; the cone puncture tip 8 can be used for facilitating the penetration into tumors for ablation; the steam access tightness of the air inlet pipe 6 can be enhanced by the butt joint external threads.
Further, a lower positioning flange 11 is arranged on the pipe orifice at the upper end of the sheath pipe 3, and positioning columns 13 are distributed on the lower positioning flange 11; an upper positioning flange 12 is arranged at the upper part of the heat insulation sleeve 2, and positioning holes are distributed on the upper positioning flange 12; when the lower positioning flange 11 is in butt joint with the upper positioning flange 12, the positioning posts 13 are inserted into the corresponding positioning holes. The sheath tube 3 is utilized to facilitate the insertion of the heat insulation sleeve 2, and the lower positioning flange 11 and the upper positioning flange 12 are used for positioning and supporting, so that the insertion depth of the heat insulation sleeve 2 and the needle tube 1 is limited; the angle of the heat insulation sleeve 2 and the needle tube 1 can be positioned by the cooperation of the positioning column 13 and the positioning hole.
Further, a positioning rubber ring 30 is sleeved on the sheath tube 3, a supporting circular ring 9 is fixedly installed on the positioning rubber ring 30, and a flexible supporting pad 10 is arranged on the lower side surface of the supporting circular ring 9. The supporting height of the sheath tube 3 can be conveniently adjusted by utilizing the positioning rubber ring 30; the comfort at the support location can be improved with the flexible support pad 10.
Further, the side clamping mechanism comprises a clamping ring sleeve 36, a connecting rod 35, a telescopic rod 34, an L-shaped sleeve 33, a lifting rod 32 and a C-shaped clamping seat 31; a clamping pressing bolt 37 is rotatably arranged on the clamping ring sleeve 36 through threads, and a movable clamping arc plate 38 is rotatably arranged on the inner end part of the clamping pressing bolt 37; a fixed clamping arc plate 39 is fixedly arranged on the inner wall of the clamping ring sleeve 36; the sheath tube 3 penetrates through the clamping ring sleeve 36 and is clamped between the movable clamping arc plate 38 and the fixed clamping arc plate 39; one end of a connecting rod 35 is fixed on the clamping ring sleeve 36, and the other end is connected with the end part of the telescopic rod 34 through a spherical hinge mechanism; the telescopic rod 34 is inserted into one end pipe orifice of the L-shaped sleeve 33, and the lifting rod 32 is inserted into the other end pipe orifice of the L-shaped sleeve 33; the C-shaped clamping seat 31 is fixedly arranged on the lifting rod 32, and a clamping fixing bolt 47 is arranged on the C-shaped clamping seat 31 in a penetrating threaded screwing manner; a pair of clamping plates 48 are rotatably mounted on the ends of the clamping fixing bolts 47.
The spherical hinge mechanism can be used for conveniently adjusting the angle of the clamping ring sleeve 36, so that the angle of the clamped sheath tube 3 is adjusted, and the operation requirements of different angles during operation are met; by means of the cooperation of the clamping pressing bolt 37, the movable clamping arc plate 38 and the fixed clamping arc plate 39, the sheath 3 can be clamped, and therefore stability of the needle tube 1 during operation is ensured.
Further, the spherical hinge mechanism comprises a spherical hinge seat 41, a spherical hinge head 40 and an angle positioning bolt 42; the spherical hinge head 40 is fixedly arranged on the connecting rod 35, the spherical hinge head 40 is spherically hinged on the spherical hinge seat 41, and the spherical hinge seat 41 is fixedly arranged on the telescopic rod 34; the angle positioning bolt 42 is screwed on the ball hinge seat 41, and the end of the screw rod is pressed on the ball hinge head 40; a telescopic positioning bolt 43 is arranged at the pipe orifice of one end of the L-shaped sleeve 33 in a penetrating thread screwing way, and the screw end of the telescopic positioning bolt 43 is pressed on the telescopic rod 34; a lifting positioning bolt 45 is arranged at the pipe orifice of the other end of the L-shaped sleeve 33 in a penetrating thread screwing way, and the screw end of the lifting positioning bolt 45 is pressed on the lifting rod 32; a telescopic guide chute 44 is arranged on the telescopic rod 34 along the axial direction of the telescopic rod, and a telescopic guide sliding block which is embedded in the telescopic guide chute 44 in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve 33; a lifting guide chute 46 is arranged on the lifting rod 32 along the axial direction of the lifting rod, and a lifting guide sliding block which is embedded in the lifting guide chute 46 in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve 33; the clamp fixing bolt 47, the angle positioning bolt 42, the telescopic positioning bolt 43, the lifting positioning bolt 45, and the clamp pressing bolt 37 are all hand-screwed bolts with cross handles.
The angle of the spherical hinge mechanism can be positioned by utilizing the angle positioning bolt 42, so that the angle adjustment requirement during operation is met; the telescopic positioning bolt 43 can be used for positioning the telescopic length of the telescopic rod 34, so that the adjustment requirements of different lengths are met; the telescopic rod 34 can be prevented from rotating relatively by the cooperation of the telescopic guide chute 44 and the telescopic guide slide block; the lifting positioning bolts 45 can be used for positioning the lifting height of the lifting rod 32, so that the adjustment requirements of different heights are met; the lift lever 32 can be prevented from rotating relatively by the cooperation of the lift guide chute 46 and the lift guide slider.
Further, a connecting lug 27 extending in an upward bending manner is provided at the upper end nozzle edge of the direction adjusting tube 28, and the connecting lug 27 is fixed to the lower end of the adjusting driving rod 15. The connecting side lugs 27 can ensure that the upper end pipe orifice of the direction adjusting pipe 28 has a larger air inlet window, so that the steam in the needle tube 1 is guided to the steam outlet 7 to be discharged.
Further, the direction adjusting mechanism includes a rectangular frame 14 and an angle adjusting disk 17; the rectangular frame 14 is fixedly arranged on the sealing end head 4; the upper end of the adjusting drive rod 15 penetrates into the rectangular frame 14, the angle adjusting disc 17 is arranged on the penetrating end of the adjusting drive rod 15, and the circumferential edge of the angle adjusting disc 17 partially protrudes out of the rectangular frame 14. The rotation adjustment drive lever 15 can be easily rotated by the angle adjustment disk 17, so that the directional adjustment pipe 28 is rotated in synchronization.
Further, a rotary positioning rod 20 is installed on the vertical frame of the rectangular frame 14 in a penetrating manner; a ring groove 18 is arranged on the circumferential surface of the angle adjusting disc 17, and rotary positioning teeth 19 are arranged in the ring groove 18 at intervals; an end convex ring 22 is fixedly arranged on the outer end of the rotary positioning rod 20; a rebound tension spring 21 is sleeved on the rotary positioning rod 20; one end of a rebound tension spring 21 is fixed on the end convex ring 22, and the other end is fixed on the rectangular frame 14, and is used for pulling the inner end of the rotary positioning rod 20 to be inserted into a gap between two adjacent rotary positioning teeth 19. The rotation angle can be positioned by utilizing the cooperation of the rotation positioning rod 20 and the rotation positioning teeth 19; the elastic insertion of the rotary positioning rod 20 can be pulled by using the rebound tension spring 21, so that the angle is reliably limited in the operation process; the position of the angle adjusting disc 17 can be limited by the cooperation of the annular groove 18 and the rotary positioning rod 20, so that the angle adjusting disc 17 is prevented from sliding along the adjusting driving rod 15 at will.
Further, a push-pull mechanism is installed at the upper part of the rectangular frame 14 for axially pushing and pulling the adjusting driving rod 15; a central synchronous hole is formed in the center of the angle adjusting disc 17, and a synchronous driving sliding block is arranged on the wall of the central synchronous hole; a synchronous bar-shaped chute 16 is axially arranged on the upper rod wall of the adjusting drive rod 15; the synchronous drive slide is slidably mounted within a synchronous bar chute 16. The push-pull mechanism can be used for axially pushing and pulling the adjusting driving rod 15, so that steam outlet holes 7 at different height positions are conducted, and the requirement of large-range adjustment during ablation operation is met; the cooperation of the synchronous driving slide block and the synchronous bar-shaped sliding groove 16 is utilized, so that the rotation adjustment of the angle adjusting disc 17 is not influenced during axial drawing.
Further, the push-pull mechanism comprises a push-pull screw 24 and a push-pull driving disc 26; a partition plate 23 is arranged at the upper part of the inner side of the rectangular frame 14, and a push-pull driving disc 26 is clamped between the partition plate 23 and the upper side frame of the rectangular frame 14; a push-pull threaded hole is arranged at the center of the push-pull driving disc 26; the lower end of the push-pull screw 24 is rotatably arranged on the upper end of the adjusting driving rod 15, and the upper end of the push-pull screw 24 penetrates through the partition plate 23 and the upper side frame of the rectangular frame 14 and is screwed with the push-pull threaded hole; a limiting chute 25 is arranged on the rod wall of the push-pull screw 24 along the axial direction thereof; a limit slider which is slidably embedded in the limit chute 25 is arranged on the partition 23. The position of the push-pull driving disc 26 can be limited by the partition plate 23, so that the push-pull screw 24 can be pushed and pulled to be adjusted when the push-pull driving disc rotates, and the driving rod 15 is further pushed and pulled to be adjusted, so that the axial position of the direction adjusting tube 28 is adjusted; the rotation installation of the push-pull screw 24 and the adjusting driving rod 15 is utilized, so that the rotation adjustment of the adjusting driving rod 15 can not be influenced when the push-pull adjustment requirement is met; the rotation of the push-pull screw 24 can be limited by utilizing the cooperation of the limiting sliding groove 25 and the limiting sliding block, so that the synchronous rotation of the push-pull screw 24 caused by the rotation adjustment of the adjusting driving rod 15 is avoided, and the axial position accuracy of the push-pull screw 24 is ensured.
When the direction-adjustable high-temperature steam ablation needle device is used, the C-shaped clamping seat 31 is fixed on the side edge of an operation table through the clamping fixing bolt 47, and then the angle positioning bolt 42, the telescopic positioning bolt 43, the lifting positioning bolt 45 and the clamping pressing bolt 37 are adjusted according to the position of a minimally invasive operation of a patient, so that the lower end of the sheath tube 3 can accurately extend into a minimally invasive hole, and the flexible supporting pad 10 is supported at the minimally invasive hole; then the heat insulation sleeve 2 and the needle tube 1 are inserted, so that the lower positioning flange 11 is in butt joint with the upper positioning flange 12, and the insertion angle positioning is performed through the matching of the positioning column 13 and the positioning hole; then the angle adjusting disc 17 is adjusted according to the required ablation direction, so that the steam outlet 7 in the corresponding direction is conducted, and the angle adjusting disc 17 is rotationally positioned by the rotary positioning rod 20; the push-pull driving disc 26 is adjusted according to the required ablation height, so that the steam outlet 7 at the corresponding height position is conducted; and the air inlet pipe 6 is connected with a steam source, so that steam for ablation is connected to perform ablation operation.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A direction-adjustable high-temperature steam ablation needle device, which is characterized in that: comprises a side clamping mechanism, an ablation needle mechanism and a direction adjusting mechanism; the ablation needle mechanism comprises a needle tube (1), a heat insulation sleeve (2), a sheath tube (3), a direction adjusting tube (28) and an adjusting driving rod (15);
the heat insulation sleeve (2) is sleeved and fixed on the upper part of the needle tube (1), the lower end of the needle tube (1) extends out of the lower end of the heat insulation sleeve (2), and a cone puncture tip (8) is arranged at the lower end of the needle tube (1); the heat insulation sleeve (2) is inserted and installed on the sheath tube (3) in a penetrating way, a sealing end head (4) is arranged at the upper end of the heat insulation sleeve (2), and a heat insulation handle tube (5) is fixedly arranged on the sealing end head (4); an air inlet pipe (6) is arranged on the heat insulation handle pipe (5) in a penetrating way, and the air inlet pipe (6) is communicated with the needle tube (1); steam outlet holes (7) are distributed on the pipe wall of the extending end of the needle pipe (1); the direction adjusting tube (28) is slidably arranged in the lower end of the needle tube (1), and the outer wall of the direction adjusting tube (28) is close to the inner wall of the needle tube (1); the lower end of the direction regulating pipe (28) is closed, rectangular holes (29) are formed in the pipe wall of the direction regulating pipe (28), and the size of each rectangular hole (29) is set to be capable of conducting only the upper steam outlet hole and the lower steam outlet hole (7) in the same row at a time; the lower end of the adjusting driving rod (15) is fixedly arranged at the upper end of the direction adjusting pipe (28), and the upper end of the adjusting driving rod (15) penetrates through and extends out of the sealing end head (4);
the direction adjusting mechanism is fixedly arranged on the sealing end head (4), the upper end of the adjusting driving rod (15) is arranged on the direction adjusting mechanism, and the rotation of the adjusting driving rod (15) is adjusted by the direction adjusting mechanism; the sheath tube (3) is clamped and fixed on the side clamping mechanism, and the clamping position and the inclination angle of the sheath tube (3) are adjusted by the side clamping mechanism;
the direction adjusting mechanism comprises a rectangular frame (14) and an angle adjusting disc (17); the rectangular frame (14) is fixedly arranged on the sealing end head (4); the upper end of the adjusting driving rod (15) penetrates through and stretches into the rectangular frame (14), the angle adjusting disc (17) is arranged on the stretching-in end of the adjusting driving rod (15), and the circumferential edge of the angle adjusting disc (17) partially protrudes out of the rectangular frame (14);
a push-pull mechanism is arranged at the upper part of the rectangular frame (14) and is used for axially pushing and pulling the adjusting driving rod (15); a central synchronous hole is formed in the center of the angle adjusting disc (17), and a synchronous driving sliding block is arranged on the wall of the central synchronous hole; a synchronous bar-shaped chute (16) is axially arranged on the upper rod wall of the adjusting driving rod (15); the synchronous driving sliding block is slidably arranged in the synchronous bar-shaped sliding groove (16);
the side clamping mechanism comprises a clamping ring sleeve (36), a connecting rod (35), a telescopic rod (34), an L-shaped sleeve (33), a lifting rod (32) and a C-shaped clamping seat (31); a clamping pressing bolt (37) is rotatably arranged on the clamping ring sleeve (36) through threads, and a movable clamping arc plate (38) is rotatably arranged on the inner end part of the clamping pressing bolt (37); a fixed clamping arc plate (39) is fixedly arranged on the inner wall of the clamping ring sleeve (36); the sheath tube (3) penetrates through the clamping ring sleeve (36) and is clamped between the movable clamping arc plate (38) and the fixed clamping arc plate (39); one end of a connecting rod (35) is fixed on the clamping ring sleeve (36), and the other end of the connecting rod is connected with the end part of the telescopic rod (34) through a spherical hinge mechanism; the telescopic rod (34) is inserted into one end pipe orifice of the L-shaped sleeve (33), and the lifting rod (32) is inserted into the other end pipe orifice of the L-shaped sleeve (33); the C-shaped clamping seat (31) is fixedly arranged on the lifting rod (32), and a clamping fixing bolt (47) is arranged on the C-shaped clamping seat (31) in a penetrating threaded screwing way; a pair of clamping plates (48) are rotatably arranged at the end parts of the clamping fixing bolts (47);
the spherical hinge mechanism comprises a spherical hinge seat (41), a spherical hinge head (40) and an angle positioning bolt (42); the spherical hinge head (40) is fixedly arranged on the connecting rod (35), the spherical hinge head (40) is spherically hinged on the spherical hinge seat (41), and the spherical hinge seat (41) is fixedly arranged on the telescopic rod (34); the angle positioning bolt (42) is screwed on the ball hinge seat (41), and the end part of the screw rod is pressed on the ball hinge head (40); a telescopic positioning bolt (43) is arranged at the pipe orifice of one end of the L-shaped sleeve (33) in a penetrating threaded screwing way, and the screw end of the telescopic positioning bolt (43) is pressed on the telescopic rod (34); a lifting positioning bolt (45) is arranged at the pipe orifice of the other end of the L-shaped sleeve (33) in a penetrating and screwing way, and the end part of a screw rod of the lifting positioning bolt (45) is pressed on the lifting rod (32); a telescopic guide chute (44) is arranged on the telescopic rod (34) along the axial direction of the telescopic rod, and a telescopic guide sliding block which is slidably embedded into the telescopic guide chute (44) is arranged at the pipe orifice of the L-shaped sleeve (33); a lifting guide chute (46) is arranged on the lifting rod (32) along the axial direction of the lifting rod, and a lifting guide sliding block which is embedded in the lifting guide chute (46) in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve (33);
the push-pull mechanism comprises a push-pull screw rod (24) and a push-pull driving disc (26); a partition plate (23) is arranged at the upper part of the inner side of the rectangular frame (14), and a push-pull driving disc (26) is clamped between the partition plate (23) and the upper side frame of the rectangular frame (14); a push-pull threaded hole is arranged at the center of the push-pull driving disc (26); the lower end of the push-pull screw rod (24) is rotatably arranged at the upper end of the adjusting driving rod (15), and the upper end of the push-pull screw rod (24) penetrates through the partition plate (23) and the upper side frame of the rectangular frame (14) and is screwed with the push-pull threaded hole; a limiting chute (25) is arranged on the rod wall of the push-pull screw rod (24) along the axial direction of the rod wall; and a limit sliding block which is slidably embedded into the limit sliding groove (25) is arranged on the partition plate (23).
2. The directionally adjustable high temperature steam ablation needle device of claim 1, wherein: a lower positioning flange (11) is arranged on the pipe orifice at the upper end of the sheath pipe (3), and positioning columns (13) are distributed on the lower positioning flange (11); an upper positioning flange (12) is arranged at the upper part of the heat insulation sleeve (2), and positioning holes are distributed on the upper positioning flange (12); when the lower positioning flange (11) is in butt joint with the upper positioning flange (12), the positioning columns (13) are inserted into the corresponding positioning holes.
3. The directionally adjustable high temperature steam ablation needle device of claim 2, wherein: the sheath tube (3) is sleeved with a positioning rubber ring (30), a supporting circular ring (9) is fixedly arranged on the positioning rubber ring (30), and a flexible supporting pad (10) is arranged on the lower side surface of the supporting circular ring (9).
4. The directionally adjustable high temperature steam ablation needle device of claim 1, wherein: the upper end pipe orifice edge of the direction adjusting pipe (28) is provided with a connecting side lug (27) which is bent upwards and extends, and the connecting side lug (27) is fixed on the lower end of the adjusting driving rod (15).
5. The directionally adjustable high temperature steam ablation needle device of claim 1, wherein: a rotary positioning rod (20) is arranged on the vertical frame of the rectangular frame (14) in a penetrating way; annular grooves (18) are formed in the circumferential surface of the angle adjusting disc (17), and rotary positioning teeth (19) are arranged in the annular grooves (18) at intervals; an end convex ring (22) is fixedly arranged at the outer end of the rotary positioning rod (20); a rebound tension spring (21) is sleeved on the rotary positioning rod (20); one end of a rebound tension spring (21) is fixed on the end convex ring (22), and the other end of the rebound tension spring is fixed on the rectangular frame (14) and is used for pulling the inner end of the rotary positioning rod (20) to be inserted into a gap between two adjacent rotary positioning teeth (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111198029.1A CN113893024B (en) | 2021-10-14 | 2021-10-14 | Direction-adjustable high-temperature steam ablation needle device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111198029.1A CN113893024B (en) | 2021-10-14 | 2021-10-14 | Direction-adjustable high-temperature steam ablation needle device |
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| Publication Number | Publication Date |
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| CN113893024A CN113893024A (en) | 2022-01-07 |
| CN113893024B true CN113893024B (en) | 2023-09-05 |
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| CN202111198029.1A Active CN113893024B (en) | 2021-10-14 | 2021-10-14 | Direction-adjustable high-temperature steam ablation needle device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024055914A1 (en) * | 2022-09-15 | 2024-03-21 | 苏州恒瑞宏远医疗科技有限公司 | Ablation needle driving system, pressure relief anti-scalding pipe, steam ablation system, and control method |
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| CN113893024A (en) | 2022-01-07 |
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