CN113893024A - High-temperature steam ablation needle device with adjustable direction - Google Patents
High-temperature steam ablation needle device with adjustable direction Download PDFInfo
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- CN113893024A CN113893024A CN202111198029.1A CN202111198029A CN113893024A CN 113893024 A CN113893024 A CN 113893024A CN 202111198029 A CN202111198029 A CN 202111198029A CN 113893024 A CN113893024 A CN 113893024A
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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 water vapor 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; the wall of the extending end of the needle tube is distributed with steam outlets; the direction adjusting tube is arranged inside the needle tube; a rectangular hole is arranged on the direction adjusting pipe; the adjusting driving rod is fixed on the direction adjusting pipe; the rotation of the adjustment drive lever is adjusted by a 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 guided into a corresponding position for high-temperature ablation, and the steam is liquefied into water after ablation, so that the water can be conveniently sucked out; the steam outlet holes in the corresponding direction are communicated by rotating the direction adjusting pipe, so that the ablation direction is adjusted; the cooperation of utilizing regulation actuating lever and direction adjustment mechanism can carry out rotation regulation and location to the direction control pipe.
Description
Technical Field
The invention relates to an ablation needle device, in particular to a direction-adjustable high-temperature water vapor ablation needle device.
Background
At present, an ablation needle is a main surgical tool for ablation operation, when the ablation needle is used, the ablation needle is used for puncturing a central area of a tumor through skin, a micro microwave oven with the size of 1 millimeter is arranged at a certain point of the microwave needle, and a microwave magnetic field released by the micro microwave oven can enable surrounding molecules to rotate at a high speed and rub to increase the temperature, so that tissue coagulation, dehydration and necrosis are realized, and the purpose of treatment is achieved. However, the existing microwave ablation method is only spherical ablation, and is not directional, and if the shape of the tumor is irregular, the problem that normal tissues are ablated by microwave ablation occurs when the tumor is ablated at the edge of the tumor.
Disclosure of Invention
The purpose of the invention is as follows: provided is a direction-adjustable high-temperature steam ablation needle device which can control the ablation direction and reduce the damage to normal tissues during an ablation operation.
The technical scheme is as follows: the direction-adjustable high-temperature steam ablation needle device 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 a conical prick tip is arranged at the lower end of the needle tube; the heat insulation sleeve is inserted on the sheath tube in a penetrating way, the upper end of the heat insulation sleeve is fixedly provided with a sealing end, and the sealing end is fixedly provided with a heat insulation handle tube; an air inlet pipe is arranged on the heat insulation handle pipe in a penetrating way and is communicated with the needle tube; the wall of the extending end of the needle tube is distributed with steam outlets; the direction adjusting tube is arranged in the lower end of the needle tube in a sliding manner, and the outer wall of the direction adjusting tube 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 formed in the pipe wall of the direction adjusting pipe; the lower end of the adjusting driving rod is fixedly arranged on the upper end of the direction adjusting pipe, and the upper end of the adjusting driving rod penetrates 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 pipe is clamped and fixed on the side clamping mechanism, and the clamping position and the inclination angle of the sheath pipe are adjusted by the side clamping mechanism.
Further, a lower positioning flange is arranged on an upper end pipe orifice 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 columns are inserted into the corresponding positioning holes.
Further, the sheath pipe is sleeved with a positioning rubber ring, a supporting ring is fixedly mounted on the positioning rubber ring, and a flexible supporting pad is arranged on the lower side face of the supporting ring.
Furthermore, 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 screwed on the clamping ring sleeve in a penetrating manner through threads, and a movable clamping arc-shaped plate is rotatably arranged on the inner end part of the clamping pressing bolt; a fixed clamping arc-shaped 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 on a pipe orifice at one end of the L-shaped sleeve, and the lifting rod is inserted on a pipe orifice at the other end 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 type 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 arranged on the spherical hinge seat in a spherical hinge mode, and the spherical hinge seat is fixedly arranged on the telescopic rod; the angle positioning bolt is screwed on the spherical hinge seat in a threaded manner, and the end part of the screw rod is pressed on the spherical hinge head; a telescopic positioning bolt is screwed in a penetrating type thread way at the pipe orifice at one end of the L-shaped sleeve, and the end part of a screw rod of the telescopic positioning bolt is pressed on the telescopic rod; a lifting positioning bolt is screwed in a penetrating type thread way at the pipe orifice at the other end of the L-shaped sleeve, and the end part of a screw rod of the lifting positioning bolt is pressed on the lifting rod; a telescopic guide sliding groove is arranged on the telescopic rod along the axial direction of the telescopic rod, and a telescopic guide sliding block which is embedded into the telescopic guide sliding groove in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve; a lifting guide sliding groove is arranged on the lifting rod along the axial direction of the lifting rod, and a lifting guide sliding block which is embedded into the lifting guide sliding groove in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve.
Furthermore, 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; the upper end of the adjusting driving rod penetrates into the rectangular frame, the angle adjusting disc is installed at the extending end of the adjusting driving rod, and the circumferential edge of the angle adjusting disc locally protrudes out of the rectangular frame.
Furthermore, a rotary positioning rod is installed on the vertical frame of the rectangular frame in a penetrating mode; the circumferential surface of the angle adjusting disc is provided with a ring groove, and rotary positioning teeth are arranged in the ring groove at intervals; an end convex ring is fixedly arranged at the outer end of the rotary positioning rod; a springback tension spring is sleeved on the rotary positioning rod; one end of the resilience tension spring is fixed on the end convex ring, and the other end of the resilience tension spring is fixed on the rectangular frame and used for pulling the inner end of the rotary positioning rod to be inserted into a gap between every two adjacent rotary positioning teeth.
Furthermore, 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 strip-shaped sliding groove is axially arranged on the upper rod wall of the adjusting driving rod; the synchronous driving slide block is arranged in the synchronous strip-shaped slide groove in a sliding way.
Furthermore, 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 the 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 on 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 limit sliding groove is arranged on the rod wall of the push-pull screw rod along the axial direction of the push-pull screw rod; the partition board is provided with a limiting slide block which is embedded into the limiting slide groove in a sliding manner.
Compared with the prior art, the invention has the beneficial effects that: the air inlet pipe, the needle tube and the steam outlet hole are matched, so that steam is guided into the corresponding position to be subjected to high-temperature ablation, and the steam is liquefied into water after ablation, so that the steam can be conveniently sucked out; the rectangular holes arranged on the tube wall of the direction adjusting tube are utilized, so that the steam outlet holes in the corresponding direction are conducted by rotating the direction adjusting tube, and the ablation direction is adjusted; the heat insulation of the needle tube can be realized by utilizing the heat insulation sleeve, and scalding to other positions after steam is introduced is prevented; the heat insulation handle pipe is convenient for hand-held operation, so that the insertion depth and the angle of the needle tube can be adjusted; the cooperation of utilizing regulation actuating lever and direction adjustment mechanism can carry out rotation regulation and location to the direction control pipe.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of an ablation needle mechanism of the present invention;
FIG. 3 is a cross-sectional partial structural view of the lower end of the needle cannula of the present invention.
Detailed Description
The technical solution of the present invention is described in detail below 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: the side clamping mechanism, the ablation needle mechanism and the direction adjusting mechanism are arranged on the side frame; 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 the lower end of the needle tube 1 is provided with a prick tip 8; the heat insulation sleeve 2 is inserted on the sheath pipe 3 in a penetrating way, the upper end of the heat insulation sleeve 2 is fixedly provided with a sealing end 4, and the sealing end 4 is fixedly provided with a heat insulation handle pipe 5; an air inlet pipe 6 is penetratingly arranged on the heat insulation handle pipe 5, 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; the steam outlet holes 7 are distributed on the pipe wall of the extending end of the needle pipe 1, and the steam outlet holes 7 are vertically arranged on the pipe wall of the extending end of the needle pipe 1 in four rows; the direction adjusting tube 28 is slidably mounted inside 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 adjusting pipe 28 is closed, a rectangular hole 29 is formed in the pipe wall of the direction adjusting pipe 28, and the size of the rectangular hole 29 is set to be only capable of conducting the upper steam outlet hole 7 and the lower steam outlet hole 7 in the same column at each 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 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 3 is clamped and fixed on the side clamping mechanism, and the clamping position and the inclination angle of the sheath 3 are adjusted by the side clamping mechanism.
The clamping positions and the inclination angles of the needle tube 1 and the sheath tube 3 can be adjusted by utilizing the side clamping mechanism, so that the operation requirements on different positions and angles during an ablation operation are met; the air inlet pipe 6, the needle tube 1 and the steam outlet hole 7 are matched, so that steam is guided into a corresponding position to be subjected to high-temperature ablation, and the steam is liquefied into water after ablation, so that the steam can be conveniently sucked out; by utilizing the rectangular hole 29 arranged on the tube wall of the direction adjusting tube 28, the steam outlet hole 7 in the corresponding direction is conducted by rotating the direction adjusting tube 28, so that the ablation direction is adjusted; the heat insulation of the needle tube 1 can be realized by utilizing the heat insulation sleeve 2, and scalding to other positions after steam is introduced is prevented; the heat insulation handle pipe 5 is convenient for hand-held operation, so that the insertion depth and the 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 conical puncture tip 8 can be conveniently punctured into the tumor for ablation; the steam access tightness of the inlet pipe 6 can be enhanced by the abutting external threads.
Further, a lower positioning flange 11 is arranged on an upper end pipe orifice 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 butted with the upper positioning flange 12, the positioning columns 13 are inserted into the corresponding positioning holes. The sheath tube 3 can be used for conveniently inserting and pulling the heat-insulating sleeve 2, and the lower positioning flange 11 and the upper positioning flange 12 are used for positioning and supporting to limit the insertion depth of the heat-insulating sleeve 2 and the needle tube 1; the angles of the heat insulation sleeve 2 and the needle tube 1 can be positioned by matching the positioning column 13 with the positioning hole.
Further, the sheath tube 3 is sleeved with a positioning rubber ring 30, the positioning rubber ring 30 is fixedly provided with a supporting ring 9, and a flexible supporting pad 10 is arranged on the lower side surface of the supporting ring 9. The supporting height of the sheath tube 3 can be conveniently adjusted by using the positioning rubber ring 30; the comfort at the support location can be improved with a 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 screwed on the clamping ring sleeve 36 in a penetrating way through threads, and a movable clamping arc-shaped plate 38 is rotatably arranged on the inner end part of the clamping pressing bolt 37; a fixed clamping arc-shaped 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-shaped plate 38 and the fixed clamping arc-shaped plate 39; one end of the 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 on a pipe orifice at one end of the L-shaped sleeve 33, and the lifting rod 32 is inserted on a pipe orifice at the other end 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 type threaded screwing mode; a pair of clamp plates 48 are rotatably mounted on the end portions of the holding fixing bolts 47.
The angle of the clamping ring sleeve 36 can be conveniently adjusted by using the spherical hinge mechanism, so that the angle of the clamped sheath tube 3 can be adjusted, and the operation requirements of different angles during operation can be met; the clamping of the sheath tube 3 can be realized by the cooperation of the clamping pressing bolt 37, the movable clamping arc 38 and the fixed clamping arc 39, so that the stability of the needle tube 1 during the 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 arranged on the spherical hinge seat 41 in a spherical hinge mode, and the spherical hinge seat 41 is fixedly arranged on the telescopic rod 34; the angle positioning bolt 42 is screwed on the spherical hinge seat 41, and the end part of the screw rod is pressed on the spherical hinge head 40; a telescopic positioning bolt 43 is screwed in a penetrating type thread way at the pipe orifice at one end of the L-shaped sleeve 33, and the end part of a screw rod of the telescopic positioning bolt 43 is pressed on the telescopic rod 34; a lifting positioning bolt 45 is screwed in a penetrating way at the pipe orifice at the other end of the L-shaped sleeve 33, and the end part of a screw rod of the lifting positioning bolt 45 is pressed on the lifting rod 32; a telescopic guide sliding groove 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 into the telescopic guide sliding groove 44 in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve 33; a lifting guide sliding groove 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 into the lifting guide sliding groove 46 in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve 33; the clamping fixing bolt 47, the angle positioning bolt 42, the telescopic positioning bolt 43, the lifting positioning bolt 45 and the clamping pressing bolt 37 are all hand-screwed bolts with cross-shaped handles.
The angle of the spherical hinge mechanism can be positioned by utilizing the angle positioning bolt 42, so that the angle adjusting requirement in the operation is met; the telescopic length of the telescopic rod 34 can be positioned by using the telescopic positioning bolt 43, so that the adjustment requirements of different lengths are met; the telescopic rod 34 can be prevented from rotating relatively by the matching of the telescopic guide sliding chute 44 and the telescopic guide sliding block; the lifting positioning bolt 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 lifting guide runner 46 is engaged with the lifting guide slider to prevent the relative rotation of the lifting rod 32.
Further, a connection lug 27 bent and extended upward is provided at the upper end nozzle edge of the direction adjustment tube 28, and the connection lug 27 is fixed to the lower end of the adjustment drive rod 15. The use of the connecting lug 27 ensures that the upper end nozzle of the direction adjusting pipe 28 has a large air inlet window, so that the steam in the needle pipe 1 is guided to the steam outlet hole 7 and discharged.
Further, 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 into the rectangular frame 14, the angle adjusting disc 17 is installed on the extending 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. The rotation adjustment drive rod 15 can be easily rotated by the angle adjustment disk 17, so that the direction adjustment tube 28 can be synchronously rotated and adjusted.
Further, a rotary positioning rod 20 is mounted 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 the 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 the gap between two adjacent rotary positioning teeth 19. The rotation angle can be positioned by matching the rotation positioning rod 20 with the rotation positioning teeth 19; the rotating positioning rod 20 can be pulled to be elastically inserted by utilizing 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 matching of the ring groove 18 and the rotary positioning rod 20, and the angle adjusting disc 17 is prevented from sliding along the adjusting driving rod 15 randomly.
Further, a push-pull mechanism is mounted on the upper portion of the rectangular frame 14 and used for axially pushing and pulling the adjusting driving rod 15; a central synchronous hole is arranged at the center of the angle adjusting disc 17, and a synchronous driving sliding block is arranged on the hole wall of the central synchronous hole; a synchronous strip-shaped sliding groove 16 is axially arranged on the upper rod wall of the adjusting driving rod 15; the synchronous driving slide block is slidably mounted in the synchronous strip-shaped chute 16. The adjusting driving rod 15 can be axially pushed and pulled by utilizing the push-pull mechanism, so that the steam outlets 7 at different height positions are communicated, and the adjusting requirement of a larger range during an ablation operation is met; by means of the cooperation of the synchronous drive slide and the synchronous bar-shaped sliding groove 16, the rotational adjustment of the angle adjusting disk 17 is not influenced during the axial pulling.
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 formed in the center of the push-pull driving disc 26; the lower end of the push-pull screw rod 24 is rotatably arranged on 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 limit sliding groove 25 is arranged on the rod wall of the push-pull screw rod 24 along the axial direction; the partition plate 23 is provided with a limit slider slidably fitted into the limit slide groove 25. The position of the push-pull driving disc 26 can be limited by the partition plate 23, so that the push-pull adjusting screw rod 24 can be pushed and pulled when the push-pull driving disc rotates, the adjusting driving rod 15 is further pushed and pulled, and the axial position adjustment of the direction adjusting pipe 28 is realized; the push-pull screw rod 24 and the adjusting driving rod 15 are rotatably mounted, so that the rotation adjustment of the adjusting driving rod 15 is not influenced when the push-pull adjustment requirement is met; the rotation of the push-pull screw rod 24 can be limited by the matching of the limiting sliding groove 25 and the limiting sliding block, so that the synchronous rotation of the push-pull screw rod 24 caused by the rotation adjustment of the adjusting driving rod 15 is avoided, and the accurate axial position of the push-pull screw rod 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 the operating bed through the clamping fixing bolt 47, and 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; inserting the heat insulation sleeve 2 and the needle tube 1 to enable the lower positioning flange 11 to be butted with the upper positioning flange 12, and positioning the insertion angle through the matching of the positioning column 13 and the positioning hole; then the angle adjusting disc 17 is adjusted according to the needed ablation direction, so that the steam outlet 7 in the corresponding direction is communicated, and the angle adjusting disc 17 is rotationally positioned by the rotary positioning rod 20; then, the push-pull driving disc 26 is adjusted according to the required ablation height, so that the steam outlet holes 7 at the corresponding height positions are communicated; then the air inlet pipe 6 is connected with a steam air source, so that the steam for ablation is connected for ablation operation.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a high temperature steam melts needle device with adjustable direction which 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 prick tip (8) is arranged at the lower end of the needle tube (1); the heat insulation sleeve (2) is inserted on the sheath pipe (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 pipe (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); the wall of the extending end pipe of the needle pipe (1) is distributed with steam outlets (7); the direction adjusting pipe (28) is arranged in the lower end of the needle tube (1) in a sliding manner, and the outer wall of the direction adjusting pipe (28) is close to the inner wall of the needle tube (1); the lower end of the direction adjusting pipe (28) is closed, and a rectangular hole (29) is formed in the pipe wall of the direction adjusting pipe (28); 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 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 edge clamping mechanism, and the clamping position and the inclination angle of the sheath tube (3) are adjusted by the side edge clamping mechanism.
2. The directionally adjustable high temperature water vapor ablation needle device of claim 1, wherein: a lower positioning flange (11) is arranged on the upper end pipe orifice 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 butted 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, further comprising: the sheath tube (3) is sleeved with a positioning rubber ring (30), a supporting ring (9) is fixedly mounted on the positioning rubber ring (30), and a flexible supporting pad (10) is arranged on the lower side surface of the supporting ring (9).
4. The directionally adjustable high temperature water vapor ablation needle device of claim 1, wherein: 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 screwed on the clamping ring sleeve (36) in a penetrating way through threads, and a movable clamping arc-shaped plate (38) is rotatably arranged on the inner end part of the clamping pressing bolt (37); a fixed clamping arc-shaped 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-shaped plate (38) and the fixed clamping arc-shaped plate (39); one end of the 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 on a pipe orifice at one end of the L-shaped sleeve (33), and the lifting rod (32) is inserted on a pipe orifice at the other end 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 screwed on the C-shaped clamping seat (31) in a penetrating manner through threads; a pair of clamping plates (48) is rotatably mounted on the end of the clamping fixing bolt (47).
5. The directionally adjustable high temperature water vapor ablation needle device of claim 4, wherein: 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 arranged on the spherical hinge seat (41) in a spherical hinged mode, and the spherical hinge seat (41) is fixedly arranged on the telescopic rod (34); the angle positioning bolt (42) is screwed on the spherical hinge seat (41) in a threaded manner, and the end part of the screw rod is pressed on the spherical hinge head (40); a telescopic positioning bolt (43) is screwed in a penetrating type thread way at the pipe orifice at one end of the L-shaped sleeve (33), and the end part of a screw rod of the telescopic positioning bolt (43) is pressed on the telescopic rod (34); a lifting positioning bolt (45) is screwed in a penetrating way at the pipe orifice at the other end of the L-shaped sleeve (33), and the end part of a screw rod of the lifting positioning bolt (45) is pressed on the lifting rod (32); a telescopic guide sliding groove (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 into the telescopic guide sliding groove (44) in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve (33); a lifting guide sliding groove (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 into the lifting guide sliding groove (46) in a sliding manner is arranged at the pipe orifice of the L-shaped sleeve (33).
6. The directionally adjustable high temperature water vapor ablation needle device of claim 1, wherein: the edge of the upper end pipe orifice 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).
7. The directionally adjustable high temperature water vapor ablation needle device of claim 1, wherein: 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 into the rectangular frame (14), the angle adjusting disc (17) is installed on the extending 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).
8. The directionally adjustable high temperature steam ablation needle device of claim 7, further comprising: a rotary positioning rod (20) is mounted 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), the other end of the rebound tension spring is fixed on the rectangular frame (14), and the rebound tension spring 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).
9. The directionally adjustable high temperature steam ablation needle device of claim 7, further comprising: 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 arranged at the center of the angle adjusting disc (17), and a synchronous driving sliding block is arranged on the hole wall of the central synchronous hole; a synchronous strip-shaped sliding groove (16) is axially arranged on the upper rod wall of the adjusting driving rod (15); the synchronous driving slide block is arranged in the synchronous strip-shaped sliding groove (16) in a sliding way.
10. The directionally adjustable high temperature water vapor ablation needle device of claim 9, wherein: 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 formed in the center of the push-pull driving disc (26); the lower end of a push-pull screw rod (24) is rotatably arranged on 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 limit sliding groove (25) is arranged on the rod wall of the push-pull screw rod (24) along the axial direction; the partition plate (23) is provided with a limit slide block which is embedded into the limit slide groove (25) in a sliding way.
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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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| CN202111198029.1A CN113893024B (en) | 2021-10-14 | 2021-10-14 | Direction-adjustable high-temperature steam ablation needle device |
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| CN113893024A true CN113893024A (en) | 2022-01-07 |
| CN113893024B CN113893024B (en) | 2023-09-05 |
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| Publication number | Publication date |
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| CN113893024B (en) | 2023-09-05 |
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