CN213249653U - General sheath pipe of ablation needle and biopsy needle - Google Patents
General sheath pipe of ablation needle and biopsy needle Download PDFInfo
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- CN213249653U CN213249653U CN202021023068.9U CN202021023068U CN213249653U CN 213249653 U CN213249653 U CN 213249653U CN 202021023068 U CN202021023068 U CN 202021023068U CN 213249653 U CN213249653 U CN 213249653U
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Abstract
The utility model discloses a sheath tube which is used for an ablation needle and a biopsy needle, which comprises an insertion tube, an adjusting tube and a sealing head; the upper end of the inserting pipe is inserted into the lower end of the adjusting pipe, and a length positioning mechanism is arranged between the inserting pipe and the adjusting pipe; the sealing head is fixedly arranged on the upper end pipe orifice of the adjusting pipe. The sheath tube commonly used by the ablation needle and the biopsy needle can seal when the ablation needle and the biopsy needle are inserted by utilizing the ablation needle sealing ring and the biopsy needle sealing ring, so that the sealing requirements of the ablation needle and the biopsy needle with different diameters are met; the rotary sealing shaft is rotatably arranged in the rotary sealing hole, so that the through holes of the upper needle body and the lower needle body can be sealed when the ablation needle and the biopsy needle are not used; the length positioning mechanism can be used for adjusting the overall length of the positioning insertion tube and the adjusting tube, so that the requirements for adjusting the lengths of the ablation needle and the biopsy needle are different.
Description
Technical Field
The utility model relates to a sheath pipe, in particular to a sheath pipe which is universal for an ablation needle and a biopsy needle.
Background
At present, when an interventional ablation operation is carried out, an ablation needle and a biopsy needle are often used, but the lengths and the diameters of the two existing needles are different, the length and the short size of the corresponding sheath and the aperture of a sealing part are also different, and the two needles are difficult to share the same sheath. Pneumothorax and hemorrhage easily appear in the puncture biopsy process of the small pulmonary nodules, and especially when the small pulmonary nodules appear in large quantity, if the biopsy and ablation can be carried out through one-time puncture, the problem that diagnosis cannot be solved through simple ablation can be solved, the operation flow can be simplified, and the pain of a patient is reduced. Therefore, it is necessary to design a sheath tube for an ablation needle and a biopsy needle, which can adjust the length and the aperture of the sealing part according to the use requirement when in use, so as to meet the requirement of sharing the ablation needle and the biopsy needle and simplify the operation process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the sheath tube is used for the ablation needle and the biopsy needle, the length and the aperture of the sealing part can be adjusted according to the use requirement when the sheath tube is used, the ablation needle and the biopsy needle are shared, and the operation process is simplified.
In order to achieve the above object, the utility model provides a sheath tube for ablation needle and biopsy needle, which comprises an insertion tube, an adjusting tube and a sealing head; the upper end of the inserting pipe is inserted into the lower end of the adjusting pipe, and a length positioning mechanism is arranged between the inserting pipe and the adjusting pipe; the sealing head is fixedly arranged on the upper end pipe orifice of the adjusting pipe; a rotary sealing hole is transversely arranged on the right side edge of the sealing head, and a rotary sealing shaft is transversely inserted into the rotary sealing hole; a handheld rotating head is arranged at the outer end part of the rotary sealing shaft, and a switching rotating hole is arranged at the inner end part of the rotary sealing shaft along the axial direction of the rotary sealing shaft; a switching rotating shaft is transversely inserted on the right side edge of the sealing head, and the inner end part of the switching rotating shaft is inserted into the switching rotating hole; a hand-held switching head is arranged at the outer end part of the switching rotating shaft; the centers of the upper side surface and the lower side surface of the sealing head are respectively provided with a needle body through hole which is vertically communicated with the rotary sealing hole; two pin inserting holes which are respectively butted with the through holes of the upper needle body and the lower needle body are arranged on the rotary sealing shaft along the radial direction, and the two pin inserting holes are vertically communicated with the switching rotary hole; an ablation needle hole and a biopsy needle hole are arranged on the switching rotating shaft in a penetrating mode along the radial direction, and the ablation needle hole is vertically communicated with the biopsy needle hole; two ends of the ablation needle hole or two ends of the biopsy needle hole are used for being respectively butted with the two needle inserting holes after the switching rotating shaft rotates to the corresponding position; the inner walls of the orifices at the two ends of the ablation needle hole are provided with ablation needle sealing rings, and the inner walls of the orifices at the two ends of the biopsy needle hole are provided with biopsy needle sealing rings.
Furthermore, limiting ring grooves are formed in the inner wall of the rotary sealing hole and the inner wall of the switching rotary hole; and limiting convex rings embedded into the limiting ring grooves at the corresponding positions are arranged on the outer wall of the rotary sealing shaft and the outer wall of the switching rotating shaft.
Furthermore, a sealing ring groove is arranged on the inner wall of the rotary sealing hole and positioned on the left side and the right side of the through hole of the needle body; a sealing ring groove is formed in the inner wall of the hole of the switching rotary hole and positioned on the left side and the right side of the pin inserting hole; and a rotary sealing ring is arranged in each of the four sealing ring grooves.
Furthermore, a sealing pipe section is integrally arranged in the middle of the adjusting pipe, and a pipe wall sealing ring is arranged on the inner wall of the sealing pipe section; the pipe wall sealing ring is arranged on the outer pipe wall of the insertion pipe in a sealing manner.
Further, the length positioning mechanism comprises a fixed seat and an elastic side arm; the fixed seat is arranged on the inserting pipe and is positioned on the outer pipe wall outside the adjusting pipe; the elastic side arm is fixedly arranged on the fixed seat and extends to the outer pipe wall close to the adjusting pipe along the axial direction of the inserting pipe; two length positioning holes are arranged on the outer tube wall of the adjusting tube, and positioning convex columns which are embedded into the length positioning holes are arranged at the end parts of the elastic side arms.
Furthermore, a guide sliding groove is arranged on the outer pipe wall of the adjusting pipe between the two length positioning holes, and the groove depth of the guide sliding groove is smaller than the hole depth of the length positioning holes.
Furthermore, a rubber sliding sleeve is sleeved on the outer pipe wall which is positioned outside the adjusting pipe and on the inserting pipe, and a rubber annular disc for supporting is arranged on the rubber sliding sleeve.
The beneficial effects of the utility model reside in that: by utilizing the ablation needle hole and the biopsy needle hole which are vertically arranged, the biopsy needle hole can be rotationally sealed in the rotating hole when the ablation needle penetrates and is inserted into the ablation needle hole, and the ablation needle hole can be rotationally sealed in the rotating hole when the biopsy needle penetrates and is inserted into the biopsy needle hole; the ablation needle sealing ring and the biopsy needle sealing ring can be used for sealing when the ablation needle and the biopsy needle are inserted, so that the sealing requirements of the ablation needle and the biopsy needle with different diameters are met; the rotary sealing shaft is rotatably arranged in the rotary sealing hole, so that the through holes of the upper needle body and the lower needle body can be sealed when the ablation needle and the biopsy needle are not used; the rotary driving of the switching rotating shaft and the rotary sealing shaft can be realized by utilizing the handheld switching head and the handheld rotating head; the length positioning mechanism can be used for adjusting the overall length of the positioning insertion tube and the adjusting tube, so that the requirements for adjusting the lengths of the ablation needle and the biopsy needle are different.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional partial schematic view of the sealing head 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 present invention is not limited to the embodiments.
Example 1:
as shown in fig. 1 and 2, the sheath tube for ablation needle and biopsy needle of the present invention includes: an insertion tube 1, an adjusting tube 2 and a sealing head 11; the upper end of the inserting tube 1 is inserted into the lower end of the adjusting tube 2, and a length positioning mechanism is arranged between the inserting tube 1 and the adjusting tube 2; the sealing head 11 is fixedly arranged on the upper end pipe orifice of the adjusting pipe 2; a rotary sealing hole 28 is transversely arranged on the right side edge of the sealing head 11, and a rotary sealing shaft 12 is transversely inserted into the rotary sealing hole 28; a handheld rotating head 15 is arranged on the outer end part of the rotating seal shaft 12, and a switching rotating hole 26 is arranged on the inner end part of the rotating seal shaft 12 along the axial direction thereof; a switching rotating shaft 13 is transversely inserted on the right side edge of the sealing head 11, and the inner end part of the switching rotating shaft 13 is inserted into the switching rotating hole 26; a hand-held switching head 14 is arranged at the outer end part of the switching rotating shaft 13; a needle body through hole 24 vertically communicated with the rotary sealing hole 28 is respectively arranged at the centers of the upper side surface and the lower side surface of the sealing head 11; two pin inserting holes 25 which are respectively butted with the upper needle body through hole 24 and the lower needle body through hole 24 are arranged on the rotary sealing shaft 12 along the radial direction, and the two pin inserting holes 25 are vertically communicated with a switching rotary hole 26; an ablation needle hole 16 and a biopsy needle hole 17 are arranged on the switching rotating shaft 13 in a radially penetrating manner, and the ablation needle hole 16 is vertically communicated with the biopsy needle hole 17; two ends of the ablation needle hole 16 or two ends of the biopsy needle hole 17 are respectively butted with the two needle inserting holes 25 after the switching rotating shaft 13 rotates to the corresponding position; an ablation needle sealing ring 18 is arranged on the inner wall of the orifice at the two ends of the ablation needle hole 16, and a biopsy needle sealing ring 19 is arranged on the inner wall of the orifice at the two ends of the biopsy needle hole 17.
With the ablation needle hole 16 and the biopsy needle hole 17 arranged vertically, the biopsy needle hole 17 can be rotatably sealed in the rotation changing hole 26 when the ablation needle is inserted into the ablation needle hole 16, and the ablation needle hole 16 can be rotatably sealed in the rotation changing hole 26 when the biopsy needle is inserted into the biopsy needle hole 17; the ablation needle sealing ring 18 and the biopsy needle sealing ring 19 can be used for sealing when the ablation needle and the biopsy needle are inserted, so that the sealing requirements of different diameters of the ablation needle and the biopsy needle are met; the rotary sealing shaft 12 is rotatably arranged in the rotary sealing hole 28, so that the sealing between the upper needle body through hole 24 and the lower needle body through hole 24 can be realized when the ablation needle and the biopsy needle are not used; the rotary drive of the switching spindle 13 and the rotary seal spindle 12 can be realized by means of the hand-held switching head 14 and the hand-held rotary head 15; the length of the whole of the positioning insertion tube 1 and the adjusting tube 2 can be adjusted by using the length positioning mechanism, so that the requirements of adjusting the lengths of the ablation needle and the biopsy needle are different.
Further, the inner wall of the rotary sealing hole 28 and the inner wall of the switching rotary hole 26 are both provided with a limiting ring groove 20; limiting convex rings 21 embedded into limiting ring grooves 20 at corresponding positions are arranged on the outer wall of the rotary sealing shaft 12 and the outer wall of the switching rotating shaft 13. The matching of the limit ring groove 20 and the limit convex ring 21 can ensure the stable rotary installation of the rotary seal shaft 12 and the switching rotary shaft 13.
Further, a sealing ring groove 22 is arranged on the inner wall of the rotary sealing hole 28 and positioned on the left side and the right side of the needle body through hole 24; a sealing ring annular groove 22 is arranged on the inner wall of the switching rotary hole 26 and positioned on the left side and the right side of the pin inserting hole 25; a rotary sealing ring 27 is arranged in each of the four sealing ring grooves 22. The rotary sealing installation can be realized by the matching of the sealing ring groove 22 and the rotary sealing ring 27.
Further, a sealing pipe section 3 is integrally arranged in the middle of the adjusting pipe 2, and a pipe wall sealing ring 4 is arranged on the inner wall of the sealing pipe section 3; the pipe wall sealing ring 4 is hermetically sleeved on the outer pipe wall of the insertion pipe 1. The gap between the adjusting pipe 2 and the inserting pipe 1 can be sealed by the pipe wall sealing ring 4, so that the sealing type length adjustment is met.
Further, the length positioning mechanism comprises a fixed seat 5 and an elastic side arm 6; the fixed seat 5 is arranged on the insertion tube 1 and is positioned on the outer tube wall outside the adjusting tube 2; the elastic side arm 6 is fixedly arranged on the fixed seat 5, and the elastic side arm 6 axially extends to the outer tube wall close to the adjusting tube 2 along the inserting tube 1; two length positioning holes 7 are arranged on the outer tube wall of the adjusting tube 2, and positioning convex columns 8 which are embedded into the length positioning holes 7 are arranged at the end parts of the elastic side arms 6. The two length positioning holes 7 and the positioning convex columns 8 arranged at the end parts of the elastic side arms 6 are utilized to realize the positioning of the two lengths, thereby meeting the use requirements of different lengths of the ablation needle and the biopsy needle.
Furthermore, a guide sliding chute 23 is arranged on the outer pipe wall of the adjusting pipe 2 between the two length positioning holes 7, and the depth of the guide sliding chute 23 is smaller than that of the length positioning holes 7. The use of the guide runner 23 facilitates the switching adjustment between the two length positioning holes 7.
Furthermore, a rubber sliding sleeve 9 is sleeved on the outer pipe wall of the insertion pipe 1 and positioned outside the adjusting pipe 2, and a rubber annular disc 10 for supporting is arranged on the rubber sliding sleeve 9. The supporting position adjustment can be facilitated by the rubber sliding sleeve 9, and the supporting on the skin can be facilitated by the rubber annular disc 10.
When the sheath tube which is commonly used by the ablation needle and the biopsy needle is used, the insertion tube 1 penetrates through the skin, and the rubber annular disc 10 is supported on the skin; when a biopsy is required, the hand-held switching head 14 and the hand-held rotating head 15 are rotated to form a passage among the needle body through hole 24, the needle insertion hole 25, and the biopsy needle hole 17, so that a biopsy needle is inserted for biopsy, and the biopsy needle is sealed by the biopsy needle sealing ring 19; if the ablation is needed, the handheld switching head 14 and the handheld rotating head 15 are rotated to enable the needle body through hole 24, the inserting needle hole 25 and the ablation needle hole 16 to form a passage, the ablation needle is inserted for ablation, and the ablation needle sealing ring 18 seals the ablation needle; in the alternate use gap between the two needles, the hand held swivel head 15 needs to be rotated so that the needle insertion hole 25 seals in the rotary seal hole 28 to prevent pneumothorax.
As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. 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 (7)
1. A sheath tube for an ablation needle and a biopsy needle, characterized in that: comprises an insertion tube (1), an adjusting tube (2) and a sealing head (11); the upper end of the insertion pipe (1) is inserted into the lower end of the adjusting pipe (2), and a length positioning mechanism is arranged between the insertion pipe (1) and the adjusting pipe (2); the sealing head (11) is fixedly arranged on the upper end pipe orifice of the adjusting pipe (2); a rotary sealing hole (28) is transversely arranged on the right side edge of the sealing head (11), and a rotary sealing shaft (12) is transversely inserted into the rotary sealing hole (28); a handheld rotating head (15) is arranged at the outer end part of the rotating seal shaft (12), and a switching rotating hole (26) is arranged at the inner end part of the rotating seal shaft (12) along the axial direction; a switching rotating shaft (13) is transversely inserted on the right side edge of the sealing head (11), and the inner end part of the switching rotating shaft (13) is inserted into the switching rotating hole (26); a hand-held switching head (14) is arranged at the outer end part of the switching rotating shaft (13); the centers of the upper side surface and the lower side surface of the sealing head (11) are respectively provided with a needle body through hole (24) which is vertically communicated with the rotary sealing hole (28); two pin inserting holes (25) which are respectively butted with the upper needle body through hole (24) and the lower needle body through hole (24) are arranged on the rotary sealing shaft (12) along the radial direction, and the two pin inserting holes (25) are vertically communicated with the switching rotary hole (26); an ablation needle hole (16) and a biopsy needle hole (17) are arranged on the switching rotating shaft (13) in a penetrating mode along the radial direction, and the ablation needle hole (16) is vertically communicated with the biopsy needle hole (17); two ends of the ablation needle hole (16) or two ends of the biopsy needle hole (17) are respectively butted with the two needle inserting holes (25) after the switching rotating shaft (13) rotates to the corresponding position; ablation needle sealing rings (18) are arranged on the inner walls of the orifices at the two ends of the ablation needle hole (16), and biopsy needle sealing rings (19) are arranged on the inner walls of the orifices at the two ends of the biopsy needle hole (17).
2. The sheath for use with an ablation needle and a biopsy needle of claim 1, wherein: limiting ring grooves (20) are formed in the inner wall of the rotary sealing hole (28) and the inner wall of the switching rotary hole (26); limiting convex rings (21) embedded into limiting ring grooves (20) at corresponding positions are arranged on the outer wall of the rotary sealing shaft (12) and the outer wall of the switching rotating shaft (13).
3. The sheath for use with an ablation needle and a biopsy needle of claim 1, wherein: a sealing ring groove (22) is arranged on the inner wall of the rotary sealing hole (28) and positioned on the left side and the right side of the needle body through hole (24); a sealing ring groove (22) is arranged on the inner wall of the switching rotary hole (26) and positioned on the left side and the right side of the pin inserting hole (25); and a rotary sealing ring (27) is arranged in each of the four sealing ring grooves (22).
4. The sheath for use with an ablation needle and a biopsy needle of claim 1, wherein: a sealing pipe section (3) is integrally arranged in the middle of the adjusting pipe (2), and a pipe wall sealing ring (4) is arranged on the inner wall of the sealing pipe section (3); the pipe wall sealing ring (4) is sleeved on the outer pipe wall of the insert pipe (1) in a sealing manner.
5. The sheath for use with an ablation needle and a biopsy needle of claim 1, wherein: the length positioning mechanism comprises a fixed seat (5) and an elastic side arm (6); the fixed seat (5) is arranged on the insertion pipe (1) and is positioned on the outer pipe wall outside the adjusting pipe (2); the elastic side arm (6) is fixedly arranged on the fixed seat (5), and the elastic side arm (6) axially extends to the outer tube wall close to the adjusting tube (2) along the inserting tube (1); two length positioning holes (7) are arranged on the outer tube wall of the adjusting tube (2), and positioning convex columns (8) which are embedded into the length positioning holes (7) are arranged at the end parts of the elastic side arms (6).
6. The sheath for use with an ablation needle and a biopsy needle of claim 5, wherein: a guide sliding chute (23) is arranged on the outer pipe wall of the adjusting pipe (2) between the two length positioning holes (7), and the depth of the guide sliding chute (23) is smaller than that of the length positioning holes (7).
7. The sheath for use with an ablation needle and a biopsy needle of claim 5, wherein: a rubber sliding sleeve (9) is sleeved on the outer pipe wall of the inserting pipe (1) and positioned outside the adjusting pipe (2), and a rubber annular disc (10) for supporting is arranged on the rubber sliding sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021023068.9U CN213249653U (en) | 2020-06-07 | 2020-06-07 | General sheath pipe of ablation needle and biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021023068.9U CN213249653U (en) | 2020-06-07 | 2020-06-07 | General sheath pipe of ablation needle and biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213249653U true CN213249653U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021023068.9U Active CN213249653U (en) | 2020-06-07 | 2020-06-07 | General sheath pipe of ablation needle and biopsy needle |
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| Country | Link |
|---|---|
| CN (1) | CN213249653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893024A (en) * | 2021-10-14 | 2022-01-07 | 江苏省肿瘤医院 | High-temperature steam ablation needle device with adjustable direction |
-
2020
- 2020-06-07 CN CN202021023068.9U patent/CN213249653U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893024A (en) * | 2021-10-14 | 2022-01-07 | 江苏省肿瘤医院 | High-temperature steam ablation needle device with adjustable direction |
| CN113893024B (en) * | 2021-10-14 | 2023-09-05 | 江苏省肿瘤医院 | Direction-adjustable high-temperature steam ablation needle device |
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