CN116616837A - Medical tube sheath - Google Patents
Medical tube sheath Download PDFInfo
- Publication number
- CN116616837A CN116616837A CN202310597040.8A CN202310597040A CN116616837A CN 116616837 A CN116616837 A CN 116616837A CN 202310597040 A CN202310597040 A CN 202310597040A CN 116616837 A CN116616837 A CN 116616837A
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- Prior art keywords
- roller
- tube sheath
- sheath
- plane part
- medical
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- 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.)
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 210000000056 organ Anatomy 0.000 description 3
- 241000282376 Panthera tigris Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000405070 Percophidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a medical tube sheath, which comprises a tube sheath I and a tube sheath II, wherein the tube sheath I is hinged to the tube sheath II, side openings of the tube sheath I are opposite to each other and can form a catheter with a hollow structure inside, and the side part of the tube sheath I is provided with a handle; the opening sizes of the first tube sheath and the second tube sheath are controlled by rollers arranged vertically; the first tube sheath is connected with the handle through a roller cavity, a driving part opposite to the roller is arranged on the side part of the second tube sheath, the roller is provided with an arc groove, and the circle center of the arc groove is not coincident with the circle center of the roller; the handle fixes the roller in the roller cavity through the pin shaft penetrating through the arc groove; the roller cavity comprises a first concave part, a first plane part, a second concave part and a second plane part, wherein the first concave part, the second plane part and the second plane part are arranged in sequence, the first plane part and the second plane part are obliquely arranged towards the driving part, the second plane part is opposite to the driving part, and the side part of the roller is only contacted with the first plane part and the second plane part in the roller cavity. The control end of the roller is positioned right in front of the handle and the operation surface is upward, so that the roller is more in line with the operation habit.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a medical tube sheath.
Background
Medical sheaths are used to extend into the target organ during surgery and to be deployed inside the target organ to direct other receipt instruments to the affected area. The publication No. CN 113367747A discloses a medical retraction guide tube with an adjusting structure and a use method thereof, and the general idea is to realize the opening or closing of a tube sheath in a threaded adjusting mode. Screw thread regulation belongs to the regulation mode commonly used in the prior art, has the high advantage of regulation precision.
However, due to the specificity of the application scene of the tube sheath, some defects still exist, firstly, the plane of the thread adjusting roller (CN 113367747A) in the prior art is perpendicular to the axis of the tube sheath, and the outer arc operating surface of the roller is equivalent to the side surface of the handle, so that the best use habit of a normal person is not met; secondly, although the thread adjustment has a self-locking function after adjustment, the self-locking mode only can ensure that the adjustment roller cannot be driven by the expansion part, and a series of operation operations are needed to be carried out in the expansion part in consideration of the fact that the tube sheath stretches into a target organ, and the operation operations are likely to touch the adjustment roller by mistake, so that the tube sheath which is more suitable for the operation of a human hand needs to be designed, and the condition that the adjustment roller is in a locking state when the human hand is operated is ensured.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a medical tube sheath.
In order to achieve the above object, the present invention adopts the following technical scheme:
the medical tube sheath comprises a tube sheath I and a tube sheath II, wherein the tube sheath I is hinged to the tube sheath II, side openings are oppositely arranged and can form a catheter with a hollow structure inside, and a handle is arranged at the side part of the tube sheath I;
the method is characterized in that: the opening sizes of the first tube sheath and the second tube sheath are controlled by rollers arranged vertically; the first tube sheath is connected with the handle through a roller cavity, a driving part opposite to the roller is arranged on the side part of the second tube sheath, the roller is provided with an arc groove, and the circle center of the arc groove is not coincident with the circle center of the roller;
the handle fixes the roller in the roller cavity through the pin shaft penetrating through the arc groove;
the roller cavity comprises a first concave part, a first plane part, a second concave part and a second plane part, wherein the first concave part, the second plane part and the second plane part are arranged in sequence, the first plane part and the second plane part are obliquely arranged towards the driving part, the second plane part is opposite to the driving part, and the side part of the roller is only contacted with the first plane part and the second plane part in the roller cavity.
Preferably, the medical sheath: the outside of the first tube sheath and the second tube sheath is also sleeved with an elastic sleeve for driving the first tube sheath and the second tube sheath to a closed state.
Preferably, the medical sheath: hinge parts are arranged on two sides of the roller cavity, and the pin shafts are fixed on the hinge parts.
Preferably, the medical sheath: the pin shaft comprises a hollow shaft and a mandrel arranged in the hollow shaft, the two ends of the mandrel extend out of the hollow shaft, the hollow shaft is provided with at least three side openings which are axially arranged, the inner hole is provided with a middle ring groove and two side ring grooves with the inner diameter smaller than that of the middle ring groove, the two side ring grooves are respectively positioned at two sides of the middle ring groove, and the middle ring groove and the side ring grooves are in smooth transition;
the lateral part of dabber is equipped with the bulge loop, and clearance fit between hollow shaft and the circular arc groove when the bulge loop is located inside the middle annular, when the bulge loop is located inside the side annular, interference fit between hollow shaft and the circular arc groove.
Preferably, the medical sheath: the pin shaft comprises a square section I, a check ring, a round section II and a square section II which are sequentially connected, the hinge part is respectively connected with the square section I and the square section II through square holes, the round section penetrates through the arc groove, and the round section is also sleeved with a spring for driving the check ring to be attached to the side part of the roller.
Preferably, the medical sheath: the circular arc groove is close to the retaining ring side and is equipped with the ladder groove, and the retaining ring sets up in the inside in ladder groove.
Preferably, the medical sheath: the step groove connection surface of the retainer ring is also provided with a rubber ring.
Preferably, the medical sheath: the first plane part has an inclination angle of 15-30 degrees.
Preferably, the medical sheath: when the pushing roller rotates in a direction away from the handle, the opening between the first tube sheath and the second tube sheath moves in an opening direction.
Preferably, the medical sheath: the outer edge of the roller is also provided with a non-penetrating anti-slip groove. The invention has the beneficial effects that:
compared with the prior art, the control end of the roller is positioned right in front of the handle and the operation face is upward, that is, the plane of the roller coincides with the axial direction of the tube sheath, so that the roller is more in line with the operation habit.
Secondly, the roller is arranged in the roller cavity, the roller cavity and the roller can be regarded as two-point contact, and the roller is restrained through the pin shaft, so that when the roller is regulated to a certain rotation angle, the roller can not rotate in the roller cavity through friction force under the action of the elastic sleeve, and the stability and reliability of the opening angle of the tube sheath are ensured.
The locking mechanism between the pin shaft and the roller can further improve the stability of roller locking, and the unlocking or locking of the locking mechanism can be realized only by the index finger or the tiger mouth of the operator, so that the operation is very convenient.
Drawings
FIG. 1 is an isometric view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a graph of force analysis at the roller of the present invention;
FIG. 4 is a block diagram of the roller and drive section of the present invention;
FIG. 5 is a block diagram of the roller cavity of the present invention;
FIG. 6 is a block diagram of a first mandrel in accordance with an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a first mandrel of an embodiment of the present invention;
FIG. 8 is an enlarged partial view of a second embodiment of the present invention;
FIG. 9 is a first block diagram of a second roller and a second mandrel in accordance with the present invention;
FIG. 10 is a diagram illustrating a second configuration of a second roller and a second mandrel;
meaning of reference numerals: 1-a first tube sheath; 2-roller cavities; 3-a handle; 4-mandrel one; 5-a second tube sheath; 6-elastic sleeve; 7-an inner sheath; 8-a roller; 9-a second mandrel; 21-first recess; 22-first plane part; 23-a second concave part; 24-plane part II; 31-hinge; 41-hollow shaft; 42-mandrel; 411-side opening; 412-side ring grooves; 413-middle ring groove; 421-convex ring; 51-a driving part; 71-a central through hole; 81-arc grooves; 82-step groove; 83-anti-skid grooves; 91-square section one; 92-check ring; 93-circle segment; 94-a spring; 95-square section II; 921-rubber rings.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1 to 7: the embodiment discloses a medical tube sheath, which comprises a tube sheath I1 and a tube sheath II 5, wherein the tube sheath I1 is hinged with the tube sheath II 5 and is used for forming a duckbill openable tube sheath. Wherein the side openings of the first tube sheath 1 and the second tube sheath 5 are oppositely arranged and can form a conduit with a hollow structure, and the side part of the first tube sheath 1 is provided with a handle 3.
In this embodiment, the opening sizes of the first tube sheath 1 and the second tube sheath 5 are controlled by the vertically arranged rollers 8, the first tube sheath 1 is connected with the handle 3 by the roller cavity 2, the side part of the second tube sheath 5 is provided with the driving part 51 opposite to the rollers 8, the rollers 8 are provided with the circular arc grooves 81, the circle centers of the circular arc grooves 81 are not coincident with the circle centers of the rollers 8, and the result is that the positions from the circular arc grooves 81 to the edges of the rollers are changed.
In order to fix the roller 8 inside the circular arc groove 81, the handle 3 of this embodiment fixes the roller 8 inside the roller cavity 2 by a pin shaft passing through the circular arc groove 81. The roller cavity 2 includes a first recess 21 (located below the driving portion 51), a first plane 22 inclined to the driving portion 51, a second recess 23 (located below the second plane 24), and a second plane 24 opposite to the driving portion 51. The side of the roller 8 is in contact with only the first and second planar portions 22, 24 of the roller cavity 2. Wherein the inclination angle of the first plane part 22 to the driving part 51 is 15-30 degrees.
From the above description it can be seen that: when the roller 8 rotates in the roller cavity 2, the pin shaft rotates in the circular arc groove 81 relative to the roller 8, and the circular arc groove 81 is changed relative to the circle center distance of the roller 8, so that the pin shaft drives the roller 8 to move towards the driving part 51, and the driving part 51 can be pushed to open the tube sheath. In practical application, according to the operation habit of a doctor, when the pushing roller 8 rotates in a direction away from the handle 3, that is, when a user holds the handle 3 to push the roller 8 forward, the opening between the first tube sheath 1 and the second tube sheath 5 moves in an opening direction, so that the operation habit of most users is more met.
The outside of the first tube sheath 1 and the second tube sheath 5 is also sleeved with an elastic sleeve 6 for driving the first tube sheath 1 and the second tube sheath 5 to a closed state, and the elastic sleeve 6 has the main function of preventing body tissues from entering into the opening jaw of the first tube sheath and also providing certain pulling force so as to enable the opening and closing of the first tube sheath to have certain damping. When the sheath is in the open state, the driving part 51 presses the outer surface of the roller 8 under the elastic tension of the elastic sleeve, and the pin shaft can freely slide in the circular arc groove 81, so that the outer edge of the roller 8 must contact the roller cavity 2, because the second plane part 24 is opposite to the driving part 51 (actually, in the fully closed state of the sheath, the two are close to parallel relationship), and therefore, after the user's hand is released, the outer edge of the roller 8 must contact the second plane part 24. In actual operation, the roller 8 is driven to rotate by the friction force of the finger, so that the bottom of the roller 8 contacts the first plane portion 22.
Fig. 3 is a force analysis diagram of the roller 8, in which four arrows A, B, C, D indicate the pressure of an external force on the roller 8, and there is a little friction force on the outside of the roller 8, so that, strictly speaking, the arrow A, B, C, D is not right opposite to the center position of the roller 8, and the friction force ensures that the roller 8 will not rotate when receiving the extrusion force in four directions. The outer edge of the roller 8 is also provided with a non-penetrating type anti-slip groove 83, the anti-slip groove 83 is axially arranged, the non-penetrating type anti-slip groove 83 does not completely penetrate through the whole roller 8, the roller 8 can rotate normally, and the anti-slip groove 83 is convenient for the fingers of a user to drive the roller 8 to rotate.
Since the roller 8 is fixed in the roller cavity 2 by means of friction force, the friction force is realized by the tension of the elastic sleeve 6, so that in order to prevent the roller 8 from rotating in the roller cavity 2, a locking mechanism is further arranged between the pin shaft and the circular arc groove 81, and the pin shaft applies a locking force to the circular arc groove 81 through the pin shaft to prevent the pin shaft from rotating relative to the circular arc groove 81.
Specifically, the two sides of the roller cavity 2 in this embodiment are further provided with hinge parts 31, and the pin shaft is fixed to the hinge parts 31. In order to achieve the purpose of locking the circular arc groove 81 by the pin shaft, the pin shaft of the present embodiment includes a hollow shaft 41 and a mandrel 42 disposed inside the hollow shaft 41, wherein two ends of the mandrel 42 extend out of the hollow shaft 41, the hollow shaft 41 is provided with at least three side openings 411 disposed in the axial direction, and the inner hole is provided with a middle ring groove 413 and a side ring groove 412 with an inner diameter smaller than the middle ring groove 413. The number of the side ring grooves 412 is two, the two side ring grooves 412 are respectively positioned at two sides of the middle ring groove 413, and the middle ring groove 413 and the side ring grooves 412 are in smooth transition.
The side of the mandrel 42 is provided with a convex ring 421, and when the convex ring 421 is positioned in the middle ring groove 413, the hollow shaft 41 is in clearance fit with the circular arc groove 81. When the end of the mandrel 42 is pressed, the convex ring 421 enters the side ring groove 412 from the middle ring groove 413, the hollow shaft 41 is spread by the convex ring 421, the outer diameter of the middle part thereof becomes larger, and the hollow shaft 41 is in interference fit with the circular arc groove 81. This achieves locking of the roller 8 by the pin. Since both ends of the mandrel 42 extend out of the hollow shaft 41, it is very convenient for the user to press, and pressing can be achieved from both ends of the hollow shaft 41.
Embodiment two:
as shown in fig. 8 to 10, the difference between the present embodiment and the first embodiment is that the locking mechanism between the pin shaft and the roller 8 is different, the pin shaft of the present embodiment includes a square section one 91, a retainer 92, a circular section 93, and a square section two 95 that are sequentially connected, the hinge portion 31 is respectively connected to the square section one 91 and the square section two 95 through square holes, the circular section 93 passes through the circular arc groove 81, and the circular section 93 is further sleeved with a spring 94 for driving the retainer 92 to be attached to the side portion of the roller 8. The circular arc groove 81 is provided with a stepped groove 82 on the side close to the collar 92, and the collar 92 is provided inside the stepped groove 82. In order to further increase the friction between the retainer ring 92 and the stepped groove 82, the connection surface of the stepped groove 82 of the retainer ring 92 in this embodiment is further provided with a rubber ring 921.
In contrast to the first embodiment, the present embodiment can achieve unlocking of the locking mechanism only through one side.
Compared with the prior art, the control end of the roller 8 is positioned right in front of the handle 3 and the operation face is upward, that is, the plane of the roller 8 coincides with the axial direction of the tube sheath, so that the operation habit is more satisfied.
Secondly, the roller 8 is arranged in the roller cavity 2, the roller cavity 2 and the roller 8 can be regarded as two-point contact, and the roller 8 is restrained through the pin shaft 4, so that when the roller is regulated to a certain rotation angle, the roller 8 can not rotate in the roller cavity 2 through friction force under the action of the elastic sleeve 6, and the stability and reliability of the opening angle of the tube sheath are ensured.
The locking mechanism between the pin shaft and the roller 8 can further improve the locking stability of the roller 8, and the unlocking or locking of the locking mechanism can be realized only by the index finger or the tiger mouth of the operator, so that the operation is very convenient.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. The medical tube sheath comprises a tube sheath I (1) and a tube sheath II (5), wherein the tube sheath I (1) is hinged to the tube sheath II (5), side openings are oppositely arranged and can form a catheter with an internal hollow structure, and a handle (3) is arranged at the side part of the tube sheath I (1);
the method is characterized in that: the opening sizes of the first tube sheath (1) and the second tube sheath (5) are controlled by rollers (8) which are vertically arranged; the tube sheath I (1) is connected with the handle (3) through the roller cavity (2) and is provided with a driving part (51) which is opposite to the roller (8), the roller (8) is provided with an arc groove (81), and the circle center of the arc groove (81) is not coincident with the circle center of the roller (8);
the handle (3) is used for fixing the roller (8) in the roller cavity (2) through a pin shaft penetrating through the circular arc groove (81);
the roller cavity (2) comprises a first concave part (21), a first plane part (22), a second concave part (23) and a second plane part (24), wherein the first concave part, the second plane part (22) and the second plane part (24) are arranged in sequence, the first plane part is obliquely arranged towards the driving part (51), the second plane part is opposite to the driving part (51), and the side part of the roller (8) is only contacted with the first plane part (22) and the second plane part (24) in the roller cavity (2).
2. The medical sheath of claim 1, wherein: the outside of the first tube sheath (1) and the second tube sheath (5) is also sleeved with an elastic sleeve (6) for driving the first tube sheath (1) and the second tube sheath (5) to a closed state.
3. The medical sheath of claim 1, wherein: the two sides of the roller cavity (2) are also provided with hinge parts (31), and the pin shafts are fixed on the hinge parts (31).
4. A medical sheath according to claim 1 or 3, wherein: the pin shaft comprises a hollow shaft (41) and a mandrel (42) arranged in the hollow shaft (41), wherein the hollow shaft (41) extends out of two ends of the mandrel (42), the hollow shaft (41) is provided with at least three side openings (411) which are axially arranged, an inner hole is provided with a middle annular groove (413) and side annular grooves (412) with the inner diameter smaller than that of the middle annular groove (413), the number of the side annular grooves (412) is two, the two side annular grooves (412) are respectively positioned at two sides of the middle annular groove (413), and the middle annular groove (413) and the side annular grooves (412) are in smooth transition;
the side of dabber (42) is equipped with bulge loop (421), when bulge loop (421) are located inside middle annular (413), clearance fit between hollow shaft (41) and circular arc groove (81), when bulge loop (421) are located inside side annular (412), interference fit between hollow shaft (41) and circular arc groove (81).
5. A medical sheath according to claim 3, wherein: the pin shaft comprises a square section I (91), a retainer ring (92), a round section (93) and a square section II (95) which are sequentially connected, the hinge part (31) is respectively connected with the square section I (91) and the square section II (95) through square holes, the round section (93) penetrates through the circular arc groove (81), and the round section (93) is further sleeved with a spring (94) for driving the retainer ring (92) to be attached to the side part of the roller (8).
6. The medical sheath of claim 5, wherein: the circular arc groove (81) is provided with a step groove (82) close to the side of the retainer ring (92), and the retainer ring (92) is arranged in the step groove (82).
7. The medical sheath of claim 6, wherein: the connection surface of the step groove (82) of the retainer ring (92) is also provided with a rubber ring (921).
8. The medical sheath of claim 1, wherein: the inclination angle of the first plane part (22) is 15-30 degrees.
9. The medical sheath of claim 1, wherein: when the pushing roller (8) rotates in a direction away from the handle (3), the opening between the first tube sheath (1) and the second tube sheath (5) moves in a splaying direction.
10. A medical sheath according to any one of claims 1 to 3, wherein: the outer edge of the roller (8) is also provided with a non-penetrating anti-slip groove (83).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311749731.1A CN117653229B (en) | 2023-05-25 | 2023-05-25 | Medical tube sheath with roller |
| CN202310597040.8A CN116616837B (en) | 2023-05-25 | 2023-05-25 | Medical tube sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310597040.8A CN116616837B (en) | 2023-05-25 | 2023-05-25 | Medical tube sheath |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311749731.1A Division CN117653229B (en) | 2023-05-25 | 2023-05-25 | Medical tube sheath with roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116616837A true CN116616837A (en) | 2023-08-22 |
| CN116616837B CN116616837B (en) | 2024-02-02 |
Family
ID=87641260
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311749731.1A Active CN117653229B (en) | 2023-05-25 | 2023-05-25 | Medical tube sheath with roller |
| CN202310597040.8A Active CN116616837B (en) | 2023-05-25 | 2023-05-25 | Medical tube sheath |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311749731.1A Active CN117653229B (en) | 2023-05-25 | 2023-05-25 | Medical tube sheath with roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN117653229B (en) |
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| US20070219550A1 (en) * | 2006-01-27 | 2007-09-20 | Mark Thompson | Device and system for surgical dissection and/or guidance of other medical devices into body |
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| CN108451562A (en) * | 2018-03-15 | 2018-08-28 | 闫学强 | A kind of cranium brain tube chamber step-less adjustment extension fixture |
| CN113367747A (en) * | 2021-07-19 | 2021-09-10 | 镇江恒生涓恩医疗器械有限公司 | Medical retracting guide catheter with adjusting structure and use method thereof |
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| EP3042686B1 (en) * | 2015-01-07 | 2019-12-11 | Abiomed Europe GmbH | Introducer sheath |
| CN213606696U (en) * | 2020-06-08 | 2021-07-06 | 上手金钟手术器械江苏有限公司 | Nucleus pulposus pincers capable of being disassembled and replaced for operation |
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| CN111921070B (en) * | 2020-08-31 | 2022-08-09 | 武汉佑康科技有限公司 | Combined structure of sheath-entering expansion tube and ureteral sheath |
| CN111870217A (en) * | 2020-08-31 | 2020-11-03 | 武汉佑康科技有限公司 | Ureteroscope catheter and ureteral sheath's integrated configuration |
| CN219050016U (en) * | 2022-11-22 | 2023-05-23 | 湖南省华芯医疗器械有限公司 | Sealing element and ureteral sheath |
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2023
- 2023-05-25 CN CN202311749731.1A patent/CN117653229B/en active Active
- 2023-05-25 CN CN202310597040.8A patent/CN116616837B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070219550A1 (en) * | 2006-01-27 | 2007-09-20 | Mark Thompson | Device and system for surgical dissection and/or guidance of other medical devices into body |
| CN107307889A (en) * | 2017-07-25 | 2017-11-03 | 张强 | Auxiliary tractor under arthroscope |
| CN108451562A (en) * | 2018-03-15 | 2018-08-28 | 闫学强 | A kind of cranium brain tube chamber step-less adjustment extension fixture |
| CN113367747A (en) * | 2021-07-19 | 2021-09-10 | 镇江恒生涓恩医疗器械有限公司 | Medical retracting guide catheter with adjusting structure and use method thereof |
| WO2023006678A1 (en) * | 2021-07-28 | 2023-02-02 | Karl Storz Se & Co. Kg | Surgical instrument and actuation device therefor |
| CN216021201U (en) * | 2021-09-15 | 2022-03-15 | 桂林合胜医疗器械有限公司 | Channel tool for spinal surgery |
| CN116115280A (en) * | 2022-12-19 | 2023-05-16 | 浙江海创医疗器械有限公司 | Brain operation expander |
| CN116035648A (en) * | 2023-01-18 | 2023-05-02 | 西安交通大学医学院第一附属医院 | Thoracoscopic rib cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117653229B (en) | 2024-05-28 |
| CN117653229A (en) | 2024-03-08 |
| CN116616837B (en) | 2024-02-02 |
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