CN210277332U - Ablation needle sealing and positioning device - Google Patents
Ablation needle sealing and positioning device Download PDFInfo
- Publication number
- CN210277332U CN210277332U CN201920803929.6U CN201920803929U CN210277332U CN 210277332 U CN210277332 U CN 210277332U CN 201920803929 U CN201920803929 U CN 201920803929U CN 210277332 U CN210277332 U CN 210277332U
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- pipe
- clamping
- positioning
- wall
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- 238000007789 sealing Methods 0.000 title claims abstract description 157
- 238000002679 ablation Methods 0.000 title claims abstract description 50
- 238000003780 insertion Methods 0.000 claims abstract description 48
- 230000037431 insertion Effects 0.000 claims abstract description 48
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims abstract description 28
- 239000012528 membrane Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000005253 cladding Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 201000003144 pneumothorax Diseases 0.000 abstract description 7
- 239000000155 melt Substances 0.000 abstract description 6
- 210000004072 lung Anatomy 0.000 abstract description 3
- 230000002685 pulmonary effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model provides an ablation needle sealing and positioning device, which comprises a positioning and sealing structure arranged at the opening of the upper end of an outer protecting tube and a protecting tube positioning structure clamped and arranged at the middle part of the outer protecting tube; the positioning sealing structure comprises an inner insertion tube, a sealing cap, an annular air bag and an extrusion cap; the protective pipe positioning structure comprises a limiting supporting plate and a pipe wall clamping mechanism; a U-shaped notch is arranged on the limiting supporting plate; the pipe wall clamping mechanism is arranged at the center of the limiting supporting plate and used for clamping and positioning the outer protecting pipe embedded into the U-shaped notch. The sealing and positioning device is supported on a human body by utilizing a protective tube positioning structure, so that the insertion depth of the outer protective tube is positioned and supported, and the play is prevented; utilize the location seal structure can seal the last mouth of pipe department of external pillar, can also fix a position the depth of insertion that melts the needle, effectively prevent that pneumothorax appears in tubercle location puncture of lung and the ablation art, ensure the positioning accuracy who melts needle radio frequency tip simultaneously.
Description
Technical Field
The utility model relates to an use auxiliary device of ablation needle in the ablation art, especially a sealed positioner of ablation needle.
Background
At present, when the existing ablation needle is used, the ablation needle is directly inserted into an outer protective tube, and the insertion depth of the ablation needle is difficult to position and control; in addition, when the medical pneumothorax puncture needle is used, the upper end pipe orifice of the outer protective pipe is not sealed, air easily enters a human body from a gap between the ablation needle and the outer protective pipe, and the pneumothorax problem is easily caused. Therefore, it is necessary to design an ablation needle sealing and positioning device, which can realize the positioning of the insertion depth of the ablation needle and the sealing of the insertion opening, improve the positioning accuracy of the ablation, and effectively avoid the failure of the ablation and the puncture biopsy of the small joints of the lung due to pneumothorax during the operation.
Creation contents of utility model
The utility model discloses the purpose of creation lies in: the ablation needle sealing and positioning device can realize positioning of the insertion depth of the ablation needle and sealing of the insertion opening, improves the positioning precision of ablation, and can effectively avoid pulmonary nodule positioning puncture and pneumothorax in the ablation.
In order to realize the purpose of the utility model, the utility model provides an ablation needle sealing and positioning device, which comprises a positioning sealing structure arranged at the pipe orifice at the upper end of an outer protecting pipe and a protecting pipe positioning structure clamped and arranged at the middle part of the outer protecting pipe;
the positioning sealing structure comprises an inner insertion tube, a sealing cap, an annular air bag and an extrusion cap; the lower end of the inner inserting pipe is vertically installed on the top of the circular cover of the sealing cover cap in a penetrating mode; a circular boss is integrally arranged on the outer wall of the inner insertion pipe and close to the top of the circular cover of the sealing cover cap, and outer threads of the cover cap are arranged on the circumferential outer wall of the circular boss; two rings of limiting ring grooves are arranged on the outer pipe wall of the inner insertion pipe in the sealing cap, and an air bag sealing ring is arranged in each limiting ring groove; a vent pipe is communicated between the two air bag sealing rings, and an air inlet pipe is arranged on the bag wall of one air bag sealing ring; the annular air bag is sleeved on the upper end part of the inner inserting pipe, and an air outlet pipe is arranged on the annular air bag and on the bag wall opposite to the circular boss; air guide holes are communicated and arranged in the inner insertion pipe and the circular boss, one end of each air guide hole is butted with the air inlet pipe, and the other end of each air guide hole is butted with the air outlet pipe; the center of the top of the circular cover of the extrusion cover cap is provided with an insertion tube through hole, and the upper end of the inner insertion tube penetrates through the insertion tube through hole; the extrusion cap is screwed on the external thread of the cap, and the top of the circular cover of the extrusion cap is used for extruding the annular air bag in the extrusion cap; the lower end of the inner inserting pipe is inserted into the upper pipe orifice of the outer protecting pipe, and the cylindrical inner wall of the sealing cover cap is buckled outside the upper pipe orifice of the outer protecting pipe; a needle body clamping and positioning mechanism for clamping and positioning the ablation needle is arranged in the inner insertion tube;
the protective pipe positioning structure comprises a limiting supporting plate and a pipe wall clamping mechanism; a U-shaped notch is arranged on the limiting supporting plate; the pipe wall clamping mechanism is arranged at the center of the limiting supporting plate and used for clamping and positioning the outer protecting pipe embedded into the U-shaped notch.
Further, the needle body clamping and positioning mechanism comprises a limiting mounting plate, a central disc and an annular sealing membrane; the limiting mounting plate is fixedly mounted inside the inner inserting tube and is perpendicular to the central axis of the inner inserting tube; a spherical surface mounting hole is formed in the center of the limiting mounting plate; the circumferential surface of the central disk is provided with a spherical bulge; the central disc is installed in the spherical mounting hole in a spherical hinge mode through the spherical bulge; a transverse strip-shaped cavity is arranged in the central disc; two rebound compression springs and two sliding sealing blocks are arranged in the transverse strip-shaped cavity; the two sliding sealing blocks are positioned between the two resilience pressure springs, and the end parts of the two resilience pressure springs are respectively supported at the two ends of the transverse strip-shaped cavity and used for pushing the sliding sealing blocks to move towards the middle part of the transverse strip-shaped cavity; the upper edges of the opposite side surfaces of the two sliding sealing blocks are respectively provided with a guide slope; a needle body inserting hole vertically penetrates through the center of the central disc, and the needle body inserting hole vertically penetrates through the middle part of the transverse strip-shaped cavity; an upper sealing sleeve and a lower sealing sleeve are respectively arranged at the centers of the upper side surface and the lower side surface of the central disc; the upper sealing sleeve and the lower sealing sleeve are respectively installed on the upper side orifice and the lower side orifice of the needle body insertion hole in a butt joint mode; two upper side sealing rings are arranged in the upper sealing sleeve; two lower side sealing rings are arranged in the lower sealing sleeve; the inner ring edge of the annular sealing membrane is fixedly arranged on the circumferential edge of the upper side surface of the central disc, and the outer ring edge of the annular sealing membrane is fixedly arranged on the inner side tube wall of the inner insertion tube.
Furthermore, two guide grooves are transversely arranged on the upper side cavity wall of the transverse strip-shaped cavity; the upper side surface of the sliding sealing block is provided with a guide sliding block which is embedded into a guide groove at a corresponding position.
Furthermore, mounting notches are formed in the lower side edges of the opposite side surfaces of the two sliding sealing blocks, and a sealing rubber sheet is mounted on the mounting notches on the two sides; the side edges of the two sealing rubber sheets protrude out of the opposite side surfaces of the sliding sealing block; when two sealed pieces that slide extrude relatively, the relative edge of two sealing rubber pieces is hugged closely mutually, hugs closely on the downside chamber wall of two sealing rubber pieces and horizontal bar cavity for seal needle body cartridge hole.
Furthermore, a circle of outer side sealing ring groove is arranged on the cylindrical inner wall of the sealing cap; an outer sealing annular air bag is arranged in the outer sealing ring groove; a side air inlet pipe is arranged on the bag wall of the outer side sealing annular air bag; an air flow channel communicated with the air guide hole is arranged in the sealing cap; the side air inlet pipe is communicated with the airflow channel in a butt joint mode.
Further, the pipe wall clamping mechanism consists of two clamping units; the clamping unit comprises a clamping pressure spring, an installation support, a pressing rod, a connecting rod, a clamping sliding seat and an arc-shaped clamping plate; the mounting support is fixedly arranged on the upper side surface of the limiting support plate, and the middle part of the pressing rod is hinged on the mounting support; two T-shaped sliding grooves extending to the center of the limiting supporting plate are formed in the upper side plate surface of the limiting supporting plate; the bottom of the clamping sliding seat is provided with a T-shaped sliding block; the clamping sliding seats of the two clamping units are respectively arranged in the two T-shaped sliding grooves in a sliding manner through T-shaped sliding blocks; the arc-shaped clamping plates are arranged on the clamping sliding seat, and the inner side cambered surfaces of the arc-shaped clamping plates of the two clamping units are opposite; a hinged mounting groove is arranged on the clamping sliding seat; the upper end of the connecting rod is hinged on the end part of the inner side of the pressing rod, and the lower end of the connecting rod is hinged in a hinge mounting groove of the corresponding side clamping sliding seat through a hinge shaft; the clamping pressure spring is elastically supported and installed between the outer end of the pressing rod and the upper side plate face of the limiting supporting plate, and the lower end of the clamping pressure spring is fixedly installed on the upper side plate face of the limiting supporting plate through the protruding column.
Furthermore, a silica gel pad is arranged on the lower side of the limiting support plate; a coating tube is arranged at the center of the silica gel pad; a circle of extrusion convex ring is arranged on the outer side of the upper end pipe orifice of the cladding pipe; the cladding pipe upwards penetrates through the U-shaped notch; the outer protecting pipe is inserted in the cladding pipe.
Further, the extrusion convex ring is positioned between the two arc-shaped clamping plates.
Furthermore, an anti-slip rubber convex edge is arranged on the inner side cambered surface of the arc-shaped clamping plate.
Furthermore, a guide conical surface which is convenient to insert into the pipe orifice at the upper end of the outer protective pipe is arranged on the outer wall of the pipe orifice at the lower end of the inner insertion pipe; the outer wall of the cylinder of the extrusion cover cap is provided with an anti-slip convex edge.
The utility model discloses the beneficial effect who creates lies in: the protective tube positioning structure is used for supporting a human body, so that the insertion depth of the outer protective tube is positioned and supported, and the outer protective tube is prevented from moving when in use; utilize location seal structure can realize sealing up the last mouth of pipe department of external pillar, can also fix a position the depth of insertion that melts the needle simultaneously, can effectively prevent that the pneumothorax appears in tubercle location puncture of lung and the ablation art, ensure the positioning accuracy who melts needle radio frequency tip simultaneously.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the sectional structure of the positioning and sealing structure of the present invention;
FIG. 3 is a schematic view of the sectional structure of the needle body clamping and positioning mechanism of the present invention;
FIG. 4 is a schematic view of the positioning structure of the protection tube of the present invention;
fig. 5 is a schematic view of the silica gel pad structure of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the invention is not limited to the embodiments.
Example 1:
as shown in fig. 1-5, the utility model discloses a sealed positioner of ablation needle includes: the positioning and sealing structure is arranged at the pipe orifice at the upper end of the outer protecting pipe 1, and the protecting pipe positioning structure is clamped and arranged in the middle of the outer protecting pipe 1;
the positioning and sealing structure comprises an inner insertion tube 21, a sealing cap 4, an annular air bag 24 and an extrusion cap 3; the lower end of the inner inserting tube 21 is vertically installed on the top of the circular cover of the sealing cover cap 4 in a penetrating mode; a circular boss 22 is integrally arranged on the outer wall of the inner insertion tube 21 and close to the top of the circular cover of the sealing cover cap 4, and a cover cap external thread is arranged on the circumferential outer wall of the circular boss 22; two rings of limiting ring grooves 34 are arranged on the outer pipe wall of the inner insertion pipe 21 in the sealing cap 4, and an air bag sealing ring 33 is arranged in each of the two limiting ring grooves 34; a vent pipe 32 is communicated and arranged between the two air bag sealing rings 33, and an air inlet pipe 51 is arranged on the bag wall of one air bag sealing ring 33; the annular air bag 24 is sleeved on the upper end part of the inner inserting tube 21, and an air outlet tube 27 is arranged on the annular air bag 24 and on the bag wall opposite to the circular boss 22; air guide holes 26 are communicated and arranged in the inner insertion pipe 21 and the circular boss 22, one ends of the air guide holes 26 are butted with the air inlet pipe 51, and the other ends of the air guide holes 26 are butted with the air outlet pipe 27; the center of the top of the circular cover of the extrusion cover cap 3 is provided with an insertion tube through hole, and the upper end of the inner insertion tube 21 penetrates through the insertion tube through hole; the extrusion cover cap 3 is screwed on the outer thread of the cover cap, and the circular top of the extrusion cover cap 3 is used for extruding the annular air bag 24 in the extrusion cover cap 3; the lower end of the inner inserting tube 21 is inserted into the upper tube opening of the outer protecting tube 1, and the cylindrical inner wall of the sealing cap 4 is buckled outside the upper tube opening of the outer protecting tube 1; a needle body clamping and positioning mechanism for clamping and positioning the ablation needle 2 is arranged in the inner cannula 21;
the protective pipe positioning structure comprises a limiting support plate 5 and a pipe wall clamping mechanism; a U-shaped notch 16 is arranged on the limiting support plate 5; the pipe wall clamping mechanism is arranged at the center of the limiting supporting plate 5 and used for clamping and positioning the outer protective pipe 1 embedded into the U-shaped notch 16.
The U-shaped notch 16 is utilized to directly mount the protective tube positioning structure from the side edge after the outer protective tube 1 is inserted, so that the protective tube positioning structure does not need to be mounted downwards from the top of the outer protective tube 1, and the depth of the outer protective tube inserted into a human body in advance is not influenced; the annular air bag 24 is extruded by screwing the extrusion cap 3 through threads, so that the air bag sealing ring 33 is inflated and expanded to extrude and seal the inner wall of the pipe orifice of the outer protective pipe 1, and the sealing performance of the positioning and sealing structure at the pipe orifice at the upper end of the outer protective pipe is ensured; the circular boss 22 can be used for conveniently arranging the external thread of the cap, and the side surface of the circular boss can be matched with the circular cover top of the extrusion cap 3 to extrude the annular air bag 24.
Further, the needle body clamping and positioning mechanism comprises a limiting mounting plate 35, a central disc 46 and an annular sealing membrane 40; the limiting mounting plate 35 is fixedly mounted inside the inner inserting tube 21, and the limiting mounting plate 35 is perpendicular to the central axis of the inner inserting tube 21; a spherical mounting hole 37 is formed in the center of the limiting mounting plate 35; the circumferential surface of the central disk 46 is provided with spherical protrusions 36; the central disk 46 is mounted in the spherical mounting hole 37 through spherical protrusions 36 in a spherical hinge manner; a transverse strip-shaped cavity 41 is arranged in the central disc 46; two rebound compression springs 42 and two sliding sealing blocks 43 are arranged in the transverse strip-shaped cavity 41; the two sliding sealing blocks 43 are positioned between the two rebound compression springs 42, and the end parts of the two rebound compression springs 42 are respectively supported at the two ends of the transverse strip-shaped cavity 41 and used for pushing the sliding sealing blocks 43 to move towards the middle part of the transverse strip-shaped cavity 41; the upper edges of the opposite side surfaces of the two sliding sealing blocks 43 are respectively provided with a guide slope surface 47; a needle body inserting hole vertically penetrates through the center of the central disc 46, and vertically penetrates through the middle of the transverse strip-shaped cavity 41; an upper sealing sleeve 38 and a lower sealing sleeve 48 are respectively arranged at the centers of the upper side surface and the lower side surface of the central disc 46; the upper sealing sleeve 38 and the lower sealing sleeve 48 are respectively installed on the upper and lower side orifices of the needle body insertion hole in a butt joint manner; two upper side sealing rings 39 are arranged in the upper sealing sleeve 38; two lower side sealing rings 49 are installed in the lower sealing sleeve 48; the inner circumferential edge of the annular sealing membrane 40 is fixedly arranged on the circumferential edge of the upper side of the central disc 46, and the outer circumferential edge of the annular sealing membrane 40 is fixedly arranged on the inner tube wall of the inner cannula 21. The two rebound compression springs 42 are used for pushing the two sliding sealing blocks 43 to move towards the middle, so that the ablation needle 2 is clamped and positioned when inserted, the insertion depth of the ablation needle 2 is accurately positioned, and the slippage is prevented when the ablation needle is used; the ablation needle 2 can be sealed when being inserted by utilizing the two upper side sealing rings 39 in the upper sealing sleeve 38 and the two lower side sealing rings 49 in the lower sealing sleeve 48, when the ablation needle 2 is pulled out, the sealing can be realized under the action of the two sliding sealing blocks 43, and when the ablation needle 2 is pulled out, the two sliding sealing blocks 43 are pushed by the two rebound compression springs 42 to be quickly combined and sealed and then leave the sealing of the two upper side sealing rings 39, and a certain time interval exists in the time, so that the ablation needle is always in a sealed state; by utilizing the spherical hinged installation of the spherical protrusions 63 and the spherical installation holes 37, the installation of the central disc 46 can be realized, the separation of the central disc 46 when the ablation needle 2 is inserted or pulled out is avoided, and the insertion angle can be properly adjusted after the ablation needle 2 is inserted, so that the angle of the radio frequency end part of the ablation needle 2 can be properly adjusted during the ablation, and the requirement of site proper adjustment is met; sealing of the ball-hinge mounting can be achieved by means of an annular sealing membrane 40.
Further, two guide grooves 50 are transversely arranged on the upper side cavity wall of the transverse strip-shaped cavity 41; a guide slider 44 fitted into a guide groove 50 at a corresponding position is provided on the upper side of the sliding seal block 43. The transverse displacement of the sliding sealing blocks 43 can be limited by the cooperation of the guide grooves 50 and the guide sliding blocks 44, the sliding sealing blocks 43 on two sides are prevented from being displaced beyond the range, and the sealing of the insertion holes of the needle bodies on the lower side is avoided.
Furthermore, mounting notches are formed in the lower side edges of the opposite side surfaces of the two sliding sealing blocks 43, and a sealing rubber sheet 45 is mounted on the mounting notches on the two sides; the side edges of the two sealing rubber sheets 45 slightly protrude out of the opposite side surfaces of the sliding sealing block 43; when the two sliding sealing blocks 43 are extruded relatively, the opposite edges of the two sealing rubber sheets 45 are tightly attached, and the lower side surfaces of the two sealing rubber sheets 45 are tightly attached to the lower side cavity wall of the transverse strip-shaped cavity 41 and used for sealing the insertion hole of the needle body. The sealing rubber sheet 45 can enhance the sealing performance of the insertion hole of the needle body and can play a role in clamping and preventing slipping when the ablation needle 2 is inserted.
Further, a circle of outer sealing ring groove 29 is arranged on the cylindrical inner wall of the sealing cover cap 4; an outer sealing annular air bag 31 is arranged in the outer sealing ring groove 29; a side air inlet pipe 30 is arranged on the wall of the outer sealing annular air bag 31; an air flow channel 28 communicated with the air guide hole 26 is arranged in the sealing cap 4; the side inlet duct 30 communicates in abutting relation with the air flow passage 28. The inflation extrusion that has outside sealed annular gasbag 31 is utilized, can cooperate with inside two gasbag sealing washer 33 and realize the inside and outside centre gripping of orificium on outer pillar 1, when further strengthening sealing performance, can also ensure the stability after the installation of sealing cap 4, prevents to break away from the upper end mouth of pipe of outer pillar 1 easily.
Further, the pipe wall clamping mechanism consists of two clamping units; the clamping unit comprises a clamping pressure spring 15, an installation support 7, a pressing rod 8, a connecting rod 18, a clamping sliding seat 9 and an arc-shaped clamping plate 10; the mounting support 7 is fixedly arranged on the upper side surface of the limiting support plate 5, and the middle part of the pressing rod 8 is hinged on the mounting support 7; two T-shaped sliding grooves 12 extending to the center of the limiting supporting plate 5 are formed in the upper side plate surface of the limiting supporting plate 5; a T-shaped sliding block 13 is arranged at the bottom of the clamping sliding seat 9; the clamping sliding seats 9 of the two clamping units are respectively arranged in the two T-shaped sliding grooves 12 in a sliding manner through T-shaped sliding blocks 13; the arc-shaped clamping plates 10 are arranged on the clamping sliding seat 9, and the inner side arc surfaces of the arc-shaped clamping plates 10 of the two clamping units are opposite; a hinged mounting groove 17 is arranged on the clamping sliding seat 9; the upper end of the connecting rod 18 is hinged on the inner end part of the pressing rod 8, and the lower end of the connecting rod 18 is hinged in a hinge mounting groove 17 of the corresponding side clamping sliding seat 9 through a hinge shaft; the clamping pressure spring 15 is elastically supported and installed between the outer end of the pressing rod 8 and the upper side plate surface of the limiting supporting plate 5, and the lower end of the clamping pressure spring 15 is fixedly installed on the upper side plate surface of the limiting supporting plate 5 through the convex column 14. Utilize two centre gripping pressure springs 15 can promote the relative centre gripping of two arc grip blocks 10 all the time to keep the stable centre gripping of outer pillar 1 when using, prevent that play from appearing in outer pillar 1, thereby further ensure that the ablation needle 2 of cartridge has better positioning accuracy in outer pillar 1.
Furthermore, a silica gel pad 6 is arranged at the lower side of the limit supporting plate 5; a coating tube 19 is arranged at the center of the silica gel pad 6; a circle of extrusion convex ring 20 is arranged outside the upper end pipe orifice of the cladding pipe 19; cladding tube 19 extends upwardly through U-shaped slot 16; the outer protective pipe 1 is inserted into the cladding pipe 19. Before the pipe wall clamping mechanism is not installed, the silica gel pad 6 and the outer protective pipe 1 are installed firstly, so that the outer protective pipe 1 is inserted into the coating pipe 19 to be temporarily positioned, and the outer wall of the outer protective pipe 1 can be wrapped by the coating pipe 19, so that certain anti-skidding and sealing performance is achieved.
Further, a pressing bead 20 is located between the two arc-shaped holding plates 10. The two arc-shaped clamping plates 10 can be extruded when being clamped relatively by the extrusion convex ring 20, so that the coating pipe 19 and the outer wall of the outer protection pipe 1 are sealed, and the position where the outer protection pipe 1 is inserted into a human body has certain sealing performance due to the attaching performance of the silica gel pad 6 and the human body.
Further, an anti-slip rubber convex rib 11 is arranged on the inner arc surface of the arc-shaped holding plate 10. The antiskid rubber rib 11 can play an antiskid role when contacting with the outer wall of the outer protecting pipe 1, and the clamped outer protecting pipe 1 cannot easily move up and down.
Furthermore, a guide conical surface 23 which is convenient to insert into the pipe orifice at the upper end of the outer protective pipe 1 is arranged on the outer wall of the pipe orifice at the lower end of the inner insertion pipe 21; the cylindrical outer wall of the extrusion cap 3 is provided with an anti-slip convex edge 25. The rotational-extrusion operation of extruding the cap 3 can be facilitated by the anti-slip projected ridge 25; the guiding conical surface 23 can play a guiding role when the inner cannula 21 is inserted into the upper end nozzle of the outer cannula 1, so that the lower end of the inner cannula 21 can be quickly and accurately inserted into the outer cannula 1.
When the ablation needle sealing and positioning device is used, the protective tube positioning structure is supported on a human body, so that the insertion depth of the outer protective tube 1 is positioned and supported, and the outer protective tube 1 is prevented from moving when in use; utilize location seal structure can realize sealing up the last mouth of pipe department of external protective tube 1, can also fix a position the depth of insertion that melts the needle simultaneously, can effectively prevent that the pneumothorax appears in the puncture of pulmonary nodule location and the ablation art, ensure the positioning accuracy who melts 2 radio frequency tip of needle simultaneously.
As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as being 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. An ablation needle sealing and positioning device is characterized in that: the device comprises a positioning sealing structure arranged at a pipe orifice at the upper end of an outer protecting pipe (1) and a protecting pipe positioning structure clamped and arranged in the middle of the outer protecting pipe (1);
the positioning and sealing structure comprises an inner insertion tube (21), a sealing cap (4), an annular air bag (24) and a squeezing cap (3); the lower end of the inner inserting pipe (21) is vertically installed on the top of the circular cover of the sealing cover cap (4) in a penetrating mode; a circular boss (22) is integrally arranged on the outer wall of the inner insertion pipe (21) and close to the top of the circular cover of the sealing cover cap (4), and an outer cover cap thread is arranged on the circumferential outer wall of the circular boss (22); two rings of limiting ring grooves (34) are arranged on the outer pipe wall of the inner insertion pipe (21) in the sealing cap (4), and an air bag sealing ring (33) is arranged in each of the two limiting ring grooves (34); a vent pipe (32) is communicated and arranged between the two air bag sealing rings (33), and an air inlet pipe (51) is arranged on the bag wall of one air bag sealing ring (33); the annular air bag (24) is sleeved on the upper end part of the inner inserting tube (21), and an air outlet tube (27) is arranged on the annular air bag (24) and on the bag wall opposite to the circular boss (22); air guide holes (26) are communicated and arranged in the inner insertion pipe (21) and the circular boss (22), one end of each air guide hole (26) is butted with the air inlet pipe (51), and the other end of each air guide hole (26) is butted with the air outlet pipe (27); an insertion tube through hole is formed in the center of the top of the circular cover of the extrusion cover cap (3), and the upper end of the inner insertion tube (21) penetrates through the insertion tube through hole; the extrusion cap (3) is screwed on the external thread of the cap, and the circular top of the extrusion cap (3) is used for extruding the annular air bag (24) in the extrusion cap (3); the lower end of the inner inserting pipe (21) is used for being inserted into an upper pipe orifice of the outer protecting pipe (1), and the cylindrical inner wall of the sealing cap (4) is buckled outside the upper pipe orifice of the outer protecting pipe (1); a needle body clamping and positioning mechanism for clamping and positioning the ablation needle (2) is arranged in the inner cannula (21);
the protective pipe positioning structure comprises a limiting support plate (5) and a pipe wall clamping mechanism; a U-shaped notch (16) is arranged on the limiting support plate (5); the pipe wall clamping mechanism is arranged at the center of the limiting supporting plate (5) and used for clamping and positioning the outer protective pipe (1) embedded into the U-shaped notch (16).
2. The ablation needle seal positioning apparatus of claim 1, wherein: the needle body clamping and positioning mechanism comprises a limiting mounting plate (35), a central disc (46) and an annular sealing membrane (40); the limiting mounting plate (35) is fixedly mounted inside the inner inserting tube (21), and the limiting mounting plate (35) is perpendicular to the central axis of the inner inserting tube (21); a spherical mounting hole (37) is formed in the center of the limiting mounting plate (35); a spherical bulge (36) is arranged on the circumferential surface of the central disk (46); the central disk (46) is installed in the spherical mounting hole (37) through a spherical bulge (36) in a spherical hinge mode; a transverse strip-shaped cavity (41) is arranged in the central disc (46); two rebound compression springs (42) and two sliding sealing blocks (43) are arranged in the transverse strip-shaped cavity (41); the two sliding sealing blocks (43) are positioned between the two rebound compression springs (42), the end parts of the two rebound compression springs (42) are respectively supported at the two ends of the transverse strip-shaped cavity (41) and used for pushing the sliding sealing blocks (43) to move towards the middle part of the transverse strip-shaped cavity (41); the upper edges of the opposite side surfaces of the two sliding sealing blocks (43) are respectively provided with a guide slope surface (47); a needle body inserting hole vertically penetrates through the center of the central disc (46), and the needle body inserting hole vertically penetrates through the middle part of the transverse strip-shaped cavity (41); an upper sealing sleeve (38) and a lower sealing sleeve (48) are respectively arranged at the centers of the upper side surface and the lower side surface of the central disc (46); an upper sealing sleeve (38) and a lower sealing sleeve (48) are respectively installed on the upper side and the lower side of the needle body insertion hole in a butt joint mode; two upper side sealing rings (39) are arranged in the upper sealing sleeve (38); two lower side sealing rings (49) are arranged in the lower sealing sleeve (48); the inner ring edge of the annular sealing membrane (40) is fixedly arranged on the circumferential edge of the upper side face of the central disc (46), and the outer ring edge of the annular sealing membrane (40) is fixedly arranged on the inner side tube wall of the inner insertion tube (21).
3. The ablation needle seal positioning apparatus of claim 2, wherein: two guide grooves (50) are transversely arranged on the upper side cavity wall of the transverse strip-shaped cavity (41); a guide slider (44) which is fitted into a guide groove (50) at a corresponding position is provided on the upper side surface of the sliding seal block (43).
4. The ablation needle seal positioning apparatus of claim 2, wherein: mounting notches are formed in the lower side edges of the opposite side surfaces of the two sliding sealing blocks (43), and a sealing rubber sheet (45) is mounted on the mounting notches on the two sides; the side edges of the two sealing rubber sheets (45) protrude out of the opposite side surfaces of the sliding sealing block (43); when the two sliding sealing blocks (43) are extruded relatively, the opposite edges of the two sealing rubber sheets (45) are tightly attached, and the lower side surfaces of the two sealing rubber sheets (45) are tightly attached to the lower side cavity wall of the transverse strip-shaped cavity (41) and used for sealing the insertion hole of the needle body.
5. The ablation needle seal positioning apparatus of claim 1, wherein: a circle of outer sealing ring grooves (29) are arranged on the cylindrical inner wall of the sealing cover cap (4); an outer sealing annular air bag (31) is arranged in the outer sealing ring groove (29); a side air inlet pipe (30) is arranged on the wall of the outer sealed annular air bag (31); an air flow channel (28) communicated with the air guide hole (26) is arranged in the sealing cap (4); the side air inlet pipe (30) is in butt communication with the air flow channel (28).
6. The ablation needle seal positioning apparatus of claim 1, wherein: the pipe wall clamping mechanism consists of two clamping units; the clamping unit comprises a clamping pressure spring (15), an installation support (7), a pressing rod (8), a connecting rod (18), a clamping sliding seat (9) and an arc-shaped clamping plate (10); the mounting support (7) is fixedly arranged on the upper side surface of the limiting support plate (5), and the middle part of the pressing rod (8) is hinged on the mounting support (7); two T-shaped sliding grooves (12) extending to the center of the limiting support plate (5) are formed in the upper side plate surface of the limiting support plate (5); a T-shaped sliding block (13) is arranged at the bottom of the clamping sliding seat (9); the clamping sliding seats (9) of the two clamping units are respectively arranged in the two T-shaped sliding grooves (12) in a sliding manner through T-shaped sliding blocks (13); the arc-shaped clamping plates (10) are arranged on the clamping sliding seat (9), and the inner arc surfaces of the arc-shaped clamping plates (10) of the two clamping units are opposite; a hinged mounting groove (17) is arranged on the clamping sliding seat (9); the upper end of the connecting rod (18) is hinged on the end part of the inner side of the pressing rod (8), and the lower end of the connecting rod (18) is hinged in a hinge mounting groove (17) of the corresponding side clamping sliding seat (9) through a hinge shaft; the clamping pressure spring (15) is elastically supported and installed between the outer side end of the pressing rod (8) and the upper side plate face of the limiting support plate (5), and the lower end of the clamping pressure spring (15) is fixedly installed on the upper side plate face of the limiting support plate (5) through the convex column (14).
7. The ablation needle seal positioning apparatus of claim 6, wherein: a silica gel pad (6) is arranged on the lower side of the limiting support plate (5); a coating pipe (19) is arranged at the center of the silica gel pad (6); a circle of extrusion convex ring (20) is arranged on the outer side of the upper end pipe orifice of the cladding pipe (19); the cladding pipe (19) upwards penetrates through the U-shaped notch (16); the outer protective pipe (1) is inserted in the cladding pipe (19).
8. The ablation needle seal positioning apparatus of claim 6, wherein: the extrusion convex ring (20) is positioned between the two arc-shaped clamping plates (10).
9. The ablation needle seal positioning apparatus of claim 6, wherein: the inner side cambered surface of the arc-shaped clamping plate (10) is provided with an anti-slip rubber convex edge (11).
10. The ablation needle seal positioning apparatus of claim 1, wherein: a guide conical surface (23) which is convenient to insert into the pipe orifice at the upper end of the outer protective pipe (1) is arranged on the outer wall of the pipe orifice at the lower end of the inner insertion pipe (21); the outer wall of the cylinder of the extrusion cap (3) is provided with an anti-skid convex edge (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803929.6U CN210277332U (en) | 2019-05-30 | 2019-05-30 | Ablation needle sealing and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803929.6U CN210277332U (en) | 2019-05-30 | 2019-05-30 | Ablation needle sealing and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210277332U true CN210277332U (en) | 2020-04-10 |
Family
ID=70071696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920803929.6U Withdrawn - After Issue CN210277332U (en) | 2019-05-30 | 2019-05-30 | Ablation needle sealing and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210277332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110179539A (en) * | 2019-05-30 | 2019-08-30 | 江苏省肿瘤医院 | A kind of sealing locating device for ablation needle in ablation |
| CN112023186A (en) * | 2020-09-28 | 2020-12-04 | 西南医科大学附属中医医院 | Medical oncology device of dosing |
| CN113091836A (en) * | 2021-03-04 | 2021-07-09 | 彩虹（合肥）液晶玻璃有限公司 | Cooling blowing flow monitoring, adjusting and installing mechanism for glass substrate forming |
-
2019
- 2019-05-30 CN CN201920803929.6U patent/CN210277332U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110179539A (en) * | 2019-05-30 | 2019-08-30 | 江苏省肿瘤医院 | A kind of sealing locating device for ablation needle in ablation |
| CN110179539B (en) * | 2019-05-30 | 2024-03-01 | 江苏省肿瘤医院 | Sealing and positioning device for ablation needle in ablation operation |
| CN112023186A (en) * | 2020-09-28 | 2020-12-04 | 西南医科大学附属中医医院 | Medical oncology device of dosing |
| CN113091836A (en) * | 2021-03-04 | 2021-07-09 | 彩虹（合肥）液晶玻璃有限公司 | Cooling blowing flow monitoring, adjusting and installing mechanism for glass substrate forming |
| CN113091836B (en) * | 2021-03-04 | 2022-08-30 | 彩虹（合肥）液晶玻璃有限公司 | Cooling blowing flow monitoring and adjusting installation mechanism for glass substrate forming |
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