CN117770915A - Bendable guiding sheath tube - Google Patents
Bendable guiding sheath tube Download PDFInfo
- Publication number
- CN117770915A CN117770915A CN202311806544.2A CN202311806544A CN117770915A CN 117770915 A CN117770915 A CN 117770915A CN 202311806544 A CN202311806544 A CN 202311806544A CN 117770915 A CN117770915 A CN 117770915A
- Authority
- CN
- China
- Prior art keywords
- sliding block
- guiding
- sheath tube
- handle
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000023597 hemostasis Effects 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 12
- 238000005452 bending Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 6
- 230000002439 hemostatic effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013130 cardiovascular surgery Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model discloses an adjustable bending guide sheath tube, which comprises a handle hemostasis valve, a guide sheath tube arranged on the handle hemostasis valve and a rotating handle with an inner hole, wherein the guide sheath tube is made of a deformable elastic material, one end of a traction wire is connected with the end part of the guide sheath tube, one end part of the traction wire, which is far away from the guide sheath tube, is rotationally connected with the rotating handle, a sliding block is further arranged in the rotating handle and is connected with the traction wire, the sliding block is provided with a sliding block guide mechanism, the rotating handle is in threaded connection with the sliding block in the sliding block guide mechanism, the sliding block moves along the guide direction of the sliding block guide mechanism, and the sliding block guide mechanism clamps the sliding block and prevents the sliding block from rotating circumferentially. After entering the human body blood vessel, the bendable guiding sheath tube can randomly adjust the angle of the distal end to smoothly enter the appointed position of the blood vessel, so that the problem that different guiding types of sheath tubes are required to be selected according to different human bodies before operation is solved, the cost is reduced, the operation time is saved, and the damage to the blood vessel is reduced.
Description
Technical Field
The utility model relates to the technical field of guide tubes used in cardiovascular surgery or examination, in particular to an adjustable bending guide sheath tube.
Background
In cardiovascular surgery or examination, an introducer sheath is required to guide the vessel for subsequent access by a micro-device, thereby creating a pathway for ease of examination and surgery. For example, patent publication No. CN219185485U discloses an introduction mechanism and a sheath. The guiding mechanism comprises a fixed seat and a guide tube. The fixing seat is used for being fixed to a sheath seat of the sheath tube, and connecting holes penetrating through two sides of the fixing seat are formed in the fixing seat. The guide tube is limited in the connecting hole, and is used for penetrating into the sheath seat and abutting with the hemostatic valve in the sheath seat. The guiding mechanism simplifies operation, shortens operation time and avoids damage to the distal structure of the catheter in the process of penetrating the tube.
However, at present, the distal end is formed into different curved shapes by pre-thermoplastic so as to be suitable for vascular passages of different patients, so that too many tools and inconvenient operation are caused, and although some guiding mechanisms are arranged, the guiding sheath needs to be pre-manufactured, and the problems of complex operation and excessive devices are difficult to solve.
Disclosure of Invention
The utility model aims to provide the bendable guiding sheath tube, and the deformation of the bendable guiding sheath tube is more convenient and accurate.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an adjustable curved guiding sheath pipe, includes handle hemostasis valve and installs guiding sheath pipe and the twist grip that has the hole on handle hemostasis valve, twist grip with handle hemostasis valve rotatable coupling, guiding sheath pipe adopts flexible elastic material to make, the one end of traction wire with guiding sheath pipe's end connection, the traction wire keep away from guiding sheath pipe one end with slider in the twist grip passes through coupling mechanism and realizes being connected, still install the slider in the twist grip, the slider disposes the slider guiding mechanism who is fixed in on the handle hemostasis valve, slider circumference is provided with the external screw thread, have the internal screw thread on the twist grip inner wall, twist grip and be in slider threaded connection cooperation wherein, the slider moves along slider guiding mechanism's direction, slider guiding mechanism blocks slider and prevents its circumferential rotation.
Preferably, the handle hemostasis valve comprises a hemostasis valve body and a slide block guide mechanism, wherein the slide block guide mechanism is a guide straight rod positioned on the hemostasis valve body, the lower end of the handle hemostasis valve body is provided with a knob seat, the upper end of the guide straight rod is provided with a knob, and the knob is rotatably sleeved on the knob seat.
Preferably, a plurality of rows of spherical protrusions and spherical grooves which are matched with each other are distributed in parallel at equal intervals at the matching position of the inner side of the knob and the knob seat.
Preferably, the connecting mechanism comprises a through hole formed in the sliding block, the fixing piece is positioned in the through hole, the traction wire penetrates through the through hole in the sliding block and is pressed by the fixing piece, a transverse through hole is formed in the inner wall of the through hole in the sliding block, the fixing piece enters the transverse through hole, an inner through hole for the traction wire to penetrate through is formed in the fixing piece, and the traction wire can be locked only by rotating the fixing piece after the traction wire penetrates through the inner through hole.
Preferably, the outer end of the transverse through hole is provided with a limiting groove, the outer end of the fixing piece is provided with a clamping groove matched with the fixing pin, and the fixing pin is simultaneously embedded into the limiting groove and the clamping groove to realize locking.
Preferably, the inner wall of the guiding sheath tube is provided with a lining tube, a traction wire is arranged in the lining tube in a penetrating way, and the traction wire is connected with a fixing ring arranged at the end head of the guiding sheath tube.
Preferably, the rotary handle is made of 374 stainless steel materials, a sheath socket for fixing the guiding sheath is arranged on the handle hemostatic valve, and the guiding sheath is inserted into the sheath socket.
Preferably, the hardness of the guiding sheath tube is gradually increased from the end head to the inside.
Preferably, the sliding block guiding mechanism comprises a guiding straight rod fixed at the tail end of the handle hemostatic valve, the rear side of the sliding block is provided with a guiding hole, and the guiding hole of the sliding block is sleeved on the guiding straight rod.
Preferably, the sliding block guiding mechanism comprises a guiding straight rod fixed at the tail end of the handle hemostatic valve, the rear side of the sliding block is provided with a guiding chute, and the guiding chute of the sliding block is sleeved on the guiding straight rod.
Compared with the prior art, the adjustable bending guide sheath tube can randomly adjust the distal end angle after entering the human blood vessel, smoothly enter the designated position of the blood vessel, and solve the problem that the model of the guide sheath tube is repeatedly selected according to different human bodies before operation, thereby being beneficial to reducing the cost, saving the operation time and reducing the damage to the blood vessel. Moreover, the inner hole wall of the rotating handle is in threaded connection with the sliding block, in the rotating process of the rotating handle, the sliding block moves back and forth along the rotating handle due to the fact that the rear wall of the sliding block is guided by the guide straight rod, so that the traction wire is pulled, the moving of the sliding block is realized by rotating and adjusting the rotating handle, the traction wire is pulled in the moving process of the sliding block, and further the guiding sheath at the other end of the traction wire is caused to bend and deform according to the bending form of a blood vessel, and therefore bending adjustment control of the end of the guiding sheath is realized more accurately and conveniently.
In addition, the lower end of the guide straight rod and the hemostatic valve body can adopt a split structure, the matching part adopts the sleeving connection of the knob and the knob seat to form a rotating connection matching, and the matching part is provided with the equidistant spherical bulge and the spherical groove, so that the knob has better positioning and gear hand feeling in the process of driving the guide straight rod to rotate, and the sliding block for pulling the traction wire can be driven to also rotate along with the guide straight rod by rotating the knob and the rotating handle simultaneously when the guide sheath tube is regulated, so that the direction of the traction force applied to the end part of the guide sheath tube is changed, and the bending direction of the guide sheath tube can be regulated accurately and flexibly.
Drawings
Fig. 1 is a schematic view of the whole structure of a bendable guiding sheath according to embodiment 2 of the present utility model;
FIG. 2 is a schematic exploded view of the present utility model;
FIG. 3 is a schematic perspective view of the handle hemostasis valve of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the handle hemostasis valve of FIG. 3;
FIG. 5 is a schematic cross-sectional view of the handle hemostasis valve and rotary handle of the present utility model;
FIG. 6 is a schematic cross-sectional view of the structure of the slider of the present utility model;
FIG. 7 is a schematic perspective view of a slider of the present utility model;
FIG. 8 is a schematic structural diagram showing the matching state of the slider and the guiding straight rod in FIG. 5;
fig. 9 is a schematic structural diagram of a matching state of a slider and a guiding straight rod according to embodiment 2 of the present utility model;
FIG. 10 is a schematic view showing the overall structure of the bendable guiding sheath according to embodiment 3 of the present utility model, wherein the knob and knob seat are added;
FIG. 11 is a schematic view of the structure of the guide straight rod of FIG. 10 in a rotational engagement with a handle hemostasis valve;
fig. 12 is a schematic view of the distribution of spherical protrusions and spherical grooves when the knob of fig. 11 is mated with the knob seat.
Meaning of each reference numeral in the drawings:
10. a handle hemostasis valve; 101. a guide straight rod; 102. a knob seat; 103. a knob; 104. a spherical protrusion; 105. a spherical groove;
20. a sheath socket; 21. an introducer sheath;
31. a rotary cover; 32. an inner liner tube; 33. traction wire; 34. a slide block; 341. a guide hole; 342. a guide chute; 35. a fixing member; 351. an inner through hole; 352. a clamping groove; 36. a fixing pin; 37. rotating the handle; 38. a limit groove; 39. and a transverse supporting plate.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1:
referring to fig. 1-8, the utility model provides an adjustable bend guiding sheath tube, which comprises a handle hemostasis valve 10, a guiding sheath tube 21 installed on the handle hemostasis valve 10 and a rotating handle 37 with an inner hole, wherein the rotating handle 37 is rotatably connected with the handle hemostasis valve 10, in particular, the rotating handle 37 is sleeved on the lower end of the handle hemostasis valve 10, rotatable matching is realized through annular grooves and annular protrusions of the handle hemostasis valve 10, the guiding sheath tube 21 is made of deformable elastic materials, one end of a traction wire 33 is connected with the end of the guiding sheath tube 21, one end of the traction wire 33, which is far away from the guiding sheath tube 21, is connected with a sliding block 34 in the rotating handle 37 through a connecting mechanism, the rotating handle 37 is internally provided with a sliding block 34, the sliding block 34 is circumferentially provided with an external thread, the rotating handle 37 is internally provided with an internal thread, the rotating handle 37 is in threaded connection matching with the sliding block 34 positioned in the sliding block 34, the sliding block 34 moves along the guiding direction of the sliding block guiding mechanism, and the sliding block 34 is blocked and prevented from rotating circumferentially.
Referring to fig. 4-7, the above-described coupling mechanism: the traction wire 33 passes through the through hole on the sliding block 34 and is pressed by the fixing piece 35, a transverse through hole is formed in the inner wall of the through hole of the sliding block 34, the fixing piece 35 enters the transverse through hole, an inner through hole for the traction wire to pass through is formed in the fixing piece 35, and the traction wire 33 can be locked by only rotating the fixing piece 35 after the traction wire 33 passes through the inner through hole 351. The outer end of the transverse through hole is provided with a limit groove 38, the outer end of the fixing piece 35 is provided with a clamping groove 352 matched with the fixing pin 36, when the fixing piece 35 rotates to the position that the two ends of the limit groove 38 are aligned with the clamping groove 352, the fixing pin 36 is simultaneously embedded into the limit groove 38 and the clamping groove 352, the fixing pin 36 plays a role in limiting the rotation of the fixing piece 35, and the fixing pin 36 can be prevented from falling off under the restraint of the inner hole wall of the rotating handle 37.
Referring to fig. 1-5, the rotary handle 37 is made of 374 stainless steel material, the handle hemostasis valve 10 is provided with a sheath tube socket 20 for fixing the guiding sheath tube 21, the guiding sheath tube 21 is inserted into the sheath tube socket 20, and the guiding sheath tube 21 is matched with the sheath tube socket 20 in size and in insertion fit. In this embodiment, the included angle between the rotating handle 37 and the guiding sheath 21 is 60 °, the bottom end of the rotating handle 37 is screwed with the rotating cover 31, and the rotating cover 31 closes the bottom end of the rotating handle.
Referring to fig. 1, in order to facilitate the deformation adjustment of the guiding sheath 21, the hardness of the guiding sheath 21 gradually increases from the tip to the inside, and the softness of the front end of the guiding sheath 21 makes the deformation degree of freedom and the deformation amplitude of the front end larger, which is more beneficial to matching the curvature of the blood vessel.
In order to drive the sliding block to move back and forth along the axial direction of the handle when the rotary handle rotates, the sliding block guiding mechanism comprises a guiding straight rod 101 fixed at the tail end of the handle hemostasis valve 10, a transverse supporting plate 39 is fixed at the lower end of the guiding straight rod 101, a guiding chute 342 is arranged at the rear side of the sliding block 34, the rear side of the sliding block 34 refers to one side closely matched with the guiding straight rod 101, and the guiding chute 342 of the sliding block 4 is sleeved on the guiding straight rod, so that the guiding straight rod and the guiding chute 342 are matched to realize circumferential clamping and circumferential sliding guiding.
The operation method of the bendable guiding sheath tube provided in the embodiment is as follows: when the bendable guiding sheath tube is used, the traction wire 33 passes through the through holes of the sliding block 34 and the fixing piece 35, the fixing piece 35 is rotated for sixty degrees, the traction wire 33 and the sliding block 34 are in interference fit, the fixing pin 36 is embedded into the limiting groove 38 and the clamping groove 352, the knob 37 is rotated to be in threaded connection fit with the sliding block 34, and the rotary cover 31 is in threaded connection fit with the rotary handle 37. By rotating the rotating handle 37 anticlockwise, the sliding block 34 is driven by a threaded fit mode to axially displace downwards, and the traction wire 33 is driven to downwardly displace, and because the fixing ring is embedded at the distal end of the guiding sheath tube 21 and fixed, axial traction force is transmitted to the distal end of the guiding sheath tube 21, and because the hardness of the distal end of the guiding sheath tube 21 is softer, the traction wire 33 drives the fixing ring, and the fixing ring drives the guiding sheath tube to enable the distal end of the guiding sheath tube 11 to bend and deform, so that the bending adjusting effect is achieved.
The bendable guide sheath tube 21 of the utility model can randomly adjust the distal angle after entering the human blood vessel, thereby being matched with various bending forms of the blood vessel, smoothly entering the designated position of the blood vessel, solving the problem that the guide sheath tube 21 of different types needs to be repeatedly selected and matched according to different human bodies before the traditional guide sheath tube operation, saving the operation time, reducing the cost of the instrument and reducing the damage of the instrument to the blood vessel.
Example 2:
referring to fig. 3, 5, 6, 7, 9, embodiment 2 provided by the present utility model is substantially the same as embodiment 1, except for the connection structure of the traction wire and the slider guide mechanism, specifically as follows: in this embodiment 2, the slider guiding mechanism includes a guiding straight rod 101 fixed at the end of the handle hemostasis valve 10, a transverse supporting plate 39 is fixed at the lower end of the guiding straight rod 101, the transverse supporting plate 39 is used for preventing the slider from falling down, a guiding hole 341 is provided at the rear side of the slider 34, and the guiding hole 341 of the slider 4 is sleeved on the guiding straight rod 101. In this embodiment, a transverse through hole with an internal thread is formed on the inner wall of the through hole of the slider 34, a plug with an external thread enters the transverse through hole and forms a threaded connection, the end of the plug tightly abuts against the fixing piece 35, an annular groove for winding the traction wire 33 is formed on the fixing piece 35, the traction wire 33 is wound on the annular groove of the fixing piece 35 first, and then the fixing piece 35 is put into the through hole of the slider 34 again and is pressed by the plug.
Example 3:
referring to fig. 10-12, embodiment 3 of the present utility model is substantially the same as embodiment 1, except that the following configuration is added: the handle hemostasis valve 10 comprises a hemostasis valve body and a slide block guide mechanism, the slide block guide mechanism is a guide straight rod 101 positioned on the hemostasis valve body, the lower end of the handle hemostasis valve body is provided with a knob seat 102, the upper end of the guide straight rod 101 is provided with a knob 103, the knob 103 is rotatably sleeved on the knob seat 102, a plurality of rows of spherical protrusions 104 and spherical grooves 105 which are matched with each other are distributed in parallel at equal intervals at the matching position of the inner side of the knob 103 and the knob seat 102, and the structure is favorable for positioning and improving gear feeling after the knob 103 rotates. This configuration is advantageous for improving the accuracy and flexibility of adjustment of the introducer sheath tip. When the guide sheath tube is used, the knob 102 drives the guide straight rod to rotate, better positioning and gear hand feeling are achieved in the process of rotating, and when the guide sheath tube is adjusted, the knob 102 and the rotating handle 37 can be rotated simultaneously to enable the sliding block 34 for pulling the traction wire 33 to also rotate along with the rotation position of the guide straight rod 101, so that the direction of traction force applied to the end portion of the guide sheath tube 21 is changed, and the guide sheath tube 21 can be adjusted accurately and flexibly.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. An adjustable bend guiding sheath tube, which is characterized in that: the device comprises a handle hemostasis valve (10), a guide sheath tube (21) and a rotating handle (37), wherein the guide sheath tube (21) is installed on the handle hemostasis valve (10), the rotating handle (37) is connected with the handle hemostasis valve (10) in a rotatable mode, the guide sheath tube (21) is made of a deformable elastic material, one end of a traction wire (33) is connected with the end portion of the guide sheath tube (21), one end portion of the traction wire (33) away from the guide sheath tube (21) is connected with a sliding block (34) in the rotating handle (37) through a connecting mechanism, the sliding block (34) is further installed in the rotating handle (37), the sliding block (34) is provided with a sliding block guiding mechanism fixed on the handle hemostasis valve (10), external threads are circumferentially arranged on the sliding block (34), the inner wall of the rotating handle (37) is provided with internal threads, the rotating handle (37) is in threaded connection with the sliding block (34) in the internal threads, the sliding block guiding mechanism moves along the guiding direction of the sliding block guiding mechanism, and the sliding block guiding mechanism blocks the sliding block (34) to rotate.
2. The adjustable bend introducer sheath according to claim 1, wherein: the handle hemostasis valve (10) comprises a hemostasis valve body and a sliding block guide mechanism, wherein the sliding block guide mechanism is a guide straight rod (101) positioned on the hemostasis valve body, the lower end of the handle hemostasis valve body is provided with a knob seat (102), the upper end of the guide straight rod (101) is provided with a knob (103), and the knob (103) is rotatably sleeved on the knob seat (102).
3. The adjustable bend introducer sheath according to claim 2, wherein: a plurality of rows of spherical protrusions (104) and spherical grooves (105) which are matched with each other are distributed in parallel at equal intervals at the matching position of the inner side of the knob (103) and the knob seat (102).
4. The adjustable bend introducer sheath according to claim 1, wherein: the connecting mechanism comprises a through hole formed in a sliding block (34), a fixing piece (35) is positioned in the through hole, a traction wire (33) penetrates through the through hole in the sliding block (34) and is pressed by the fixing piece (35), a transverse through hole is formed in the inner wall of the through hole in the sliding block (34), the fixing piece (35) enters the transverse through hole, an inner through hole (351) for the traction wire to penetrate through is formed in the fixing piece (35), and the traction wire (33) can be locked only by rotating the fixing piece (35) after the traction wire (33) penetrates through the inner through hole (351).
5. The adjustable bend introducer sheath according to claim 4, wherein: the outer end of the transverse through hole is provided with a limiting groove (38), the outer end of the fixing piece (35) is provided with a clamping groove (352) matched with the fixing pin (36), and the fixing pin (36) is simultaneously embedded into the limiting groove (38) and the clamping groove (352) to realize locking.
6. The adjustable bend introducer sheath according to claim 4, 5 or 6, wherein: the inner wall of the guiding sheath tube (21) is provided with a lining tube (32), a traction wire (33) is arranged in the lining tube (32) in a penetrating mode, and the traction wire (33) is connected with a fixing ring arranged at the end head of the guiding sheath tube (21).
7. The adjustable bend introducer sheath according to claim 4, 5 or 6, wherein: the rotary handle (37) is made of 374 stainless steel materials, a sheath tube socket (20) for fixing the guiding sheath tube (21) is arranged on the handle hemostasis valve (10), and the guiding sheath tube (21) is inserted into the sheath tube socket (20).
8. The adjustable bend introducer sheath according to claim 4, 5 or 6, wherein: the hardness of the guiding sheath tube (21) is gradually increased from the end head to the inside.
9. The adjustable bend introducer sheath according to claim 4, 5 or 6, wherein: the sliding block guiding mechanism comprises a guiding straight rod (101) fixed at the tail end of the handle hemostasis valve (10), a guiding hole (341) is formed in the rear side of the sliding block, and the guiding hole (341) of the sliding block (4) is sleeved on the guiding straight rod (101).
10. The adjustable bend introducer sheath according to claim 4, 5 or 6, wherein: the sliding block guiding mechanism comprises a guiding straight rod (101) fixed at the tail end of the handle hemostasis valve (10), a guiding chute (342) is formed in the rear side of the sliding block, and the guiding chute (342) of the sliding block (4) is sleeved on the guiding straight rod (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311806544.2A CN117770915A (en) | 2023-12-26 | 2023-12-26 | Bendable guiding sheath tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311806544.2A CN117770915A (en) | 2023-12-26 | 2023-12-26 | Bendable guiding sheath tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117770915A true CN117770915A (en) | 2024-03-29 |
Family
ID=90380912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311806544.2A Withdrawn CN117770915A (en) | 2023-12-26 | 2023-12-26 | Bendable guiding sheath tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117770915A (en) |
-
2023
- 2023-12-26 CN CN202311806544.2A patent/CN117770915A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20240329 |