CN216257676U - Support pressing and holding device - Google Patents
Support pressing and holding device Download PDFInfo
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- CN216257676U CN216257676U CN202122591980.5U CN202122591980U CN216257676U CN 216257676 U CN216257676 U CN 216257676U CN 202122591980 U CN202122591980 U CN 202122591980U CN 216257676 U CN216257676 U CN 216257676U
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Abstract
The utility model relates to a support pressing and holding device which comprises a push rod, a first box body, an elastic part, a connecting part, a pressing and holding part and a second box body, wherein one end of the push rod extends into a hollow cavity formed in the first box body through a through hole, the elastic part is sleeved at one end of the push rod and positioned in the hollow cavity and provides restoring elasticity for the push rod, one end of the pressing and holding part is fixed on the connecting part, the other end of the pressing and holding part is a free end, the free end is used for penetrating through the through hole to form a circular ring with a variable diameter, a limiting rod is arranged on the outer side surface of the pressing and holding part and is used for being clamped into the through hole, and a matching hole communicated with the circular ring is formed in the second box body. The medicine support is pressed and held to the pressing and holding state through the pressing and holding portion, then the medicine support is pushed into the conveying head end of the conveyor through the matching hole from the pressing and holding portion by the push rod, the medicine support is always in the pressing and holding state in the pushing process, the pressing and holding failure rate of the support can be reduced, and the medicine support is convenient and reliable and is easy to operate.
Description
Technical Field
The utility model relates to the technical field of medical instrument auxiliary tools, in particular to a support pressing and holding device.
Background
Chronic nasosinusitis is one of the common diseases of otorhinolaryngology, and the symptoms of nasal obstruction, nasal discharge, headache, dizziness and the like caused by the chronic nasosinusitis seriously affect the life quality of patients and prevent normal work. The chronic nasosinusitis treated by the traditional operation has the problems of serious postoperative intra-cavity adhesion, high restenosis rate and the like, so the paranasal sinus stent is often placed in the nasal cavity after the operation to avoid the problems of tissue adhesion and secondary operation. However, when the self-expanding sinus stent is clinically used, the stent has high crimping failure rate and poor crimping effect, so that the stent fails to be implanted.
SUMMERY OF THE UTILITY MODEL
Therefore, there is a need to provide a convenient and reliable stent holder that can reduce the failure rate of stent holder.
A support pressing and holding device comprises a push rod, a first box body, a connecting part, a pressing and holding part and a second box body;
the first box body is provided with a through hole, and one end of the push rod extends into the through hole;
the connecting part is positioned between the first box body and the second box body, and a via hole is formed in the connecting part;
one end of the pressing and holding part is fixed on the connecting part, the other end of the pressing and holding part is a free end, and the free end of the pressing and holding part is used for penetrating through the through hole to form a circular ring with a variable diameter;
and the second box body is internally provided with a matching hole, and the through hole and the circular ring are communicated with the matching hole.
In one embodiment, the pressing portion comprises a pressing and holding belt, one end of the pressing and holding belt is fixed on the connecting portion, the other end of the pressing and holding belt is a free end, and the free end of the pressing and holding belt penetrates through the through hole to form the circular ring with the variable diameter.
In one embodiment, the pressing portion further includes a handle disposed at a free end of the pressing belt.
In one embodiment, the axial width of the press-grip strip is smaller than the axial width of the via hole, and the thickness of the press-grip strip is smaller than the radial width of the via hole.
In one embodiment, a limiting rod is arranged on the outer side surface of the pressing portion and is used for being clamped into the through hole.
In one embodiment, the limiting rod is arranged on the outer side surface of the press-holding belt, the limiting rod extends along the axial direction, the axial width of the limiting rod is smaller than or equal to the axial width of the via hole, and the diameter of the limiting rod is larger than the radial width of the via hole.
In one embodiment, the matching holes comprise an inlet hole, a holding hole and a connecting hole which are communicated in sequence, the inlet hole is connected with a circular ring with variable diameter formed by the pressing and holding part, and the connecting hole is used for connecting a conveyor.
In one embodiment, the inlet hole is tapered, a large diameter section of the inlet hole engages with the variable diameter ring formed by the pressure grip portion, and a small diameter section of the inlet hole engages with the retaining hole.
In one embodiment, the holding hole and the connecting hole are both cylindrical holes, and the diameter of the connecting hole is larger than that of the holding hole.
In one embodiment, the holder further includes an elastic member, a limiting protrusion is disposed on an outer peripheral side of the push rod, the first box further includes a hollow cavity communicated with the through hole, the elastic member is sleeved at one end of the push rod and located in the hollow cavity, one end of the elastic member abuts against the limiting protrusion, and the other end of the elastic member abuts against a top wall of the first box.
The bracket pressing holder at least has the following advantages:
the medicine support in the initial state is placed in a circular ring with the variable diameter formed by the pressing and holding part, then the length of the pressing and holding part penetrating into the through hole is changed (namely the position of the free end of the pressing and holding part relative to the through hole is changed), so that the pressing and holding part slowly shrinks, the diameter of the circular ring slowly decreases, the medicine support is compressed, and the deformation of the medicine support from the initial state to the pressing and holding state is completed. The matching hole of the pressure holding device loaded with the medicine support is aligned with the conveying head end of the conveyor, so that the conveying head end of the conveyor is inserted into the matching hole, the position is kept still, the push rod is slowly pushed to move towards the second box body, the medicine support is slowly pushed out of the pressure holding part by the push rod close to one end of the medicine support, the medicine support penetrates through the matching hole of the second box body and is conveyed to the conveying head end of the conveyor, and when the push rod is pushed to the maximum position, the medicine support is exactly and completely pressed and held in the conveying head end of the conveyor. Therefore, the medicine support is pressed and held to the pressing and holding state through the pressing and holding portion, then the medicine support is pushed into the conveying head end of the conveyor through the matching hole from the pressing and holding portion by the push rod, the medicine support is always in the pressing and holding state in the pushing process, the pressing and holding failure rate of the support can be reduced, and the medicine support is convenient and reliable and is simple to operate.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a stent holder according to an embodiment;
FIG. 2 is a schematic view of a drug stent in an initial state being placed in the stent holder of FIG. 1;
FIG. 3 is a schematic view of the stent crimper shown in FIG. 1 crimping a drug stent into a crimped state;
FIG. 4 is a schematic view of the alignment of a stent crimper and a delivery device carrying a drug stent in a crimped state.
Description of reference numerals:
1. a drug scaffold; 2. a support pressing and holding device; 3. a conveyor; 21. a push rod; 22. a first case; 221. an elastic member; 25. a connecting portion; 23. a pressing part; 24. a second case; 211. a limiting bulge; 222. a through hole; 223. a hollow cavity; 212. a handle; 233. a via hole; 231. a limiting rod; 234. pressing the holding belt; 232. a handle; 244. a mating hole; 243. an access hole; 242. a retaining hole; 241. connecting holes; 31. a delivery head end; 32. a conveying rod.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
As shown in fig. 1, the stent holder 2 of one embodiment is mainly used for crimping the drug stent 1 from an initial state to a crimped state, and pushing the drug stent 1 in the crimped state into the delivery device 3, so as to facilitate the subsequent delivery of the drug stent 1 in the crimped state to a target position in the nasal cavity of a patient through a delivery tube. For example, the drug stent 1 may be a self-expanding sinus stent. Specifically, the holder squeeze 2 includes a push rod 21, a first case 22, an elastic member 221, a connecting portion 25, a pressing portion 23, and a second case 24.
The outer peripheral side of the push rod 21 is provided with a limiting protrusion 211, the first box 22 is provided with a through hole 222 which penetrates through the first box and a hollow cavity 223 communicated with the through hole 222, one end of the push rod 21 extends into the hollow cavity 223 through the through hole 222, the limiting protrusion 211 is limited in the hollow cavity 223, the outer diameter of the limiting protrusion 211 is larger than the inner diameter of the through hole 222, and the push rod 21 is prevented from being released from the through hole 222. The hollow cavity 223 has an inner diameter greater than that of the through hole 222 to receive the elastic member 221 and the stopper protrusion 211. Specifically, the push rod 21 is cylindrical, the limiting protrusion 211 is a circular protrusion formed in the middle of the push rod 21, the first box 22 is cylindrical, the hollow cavity 223 is cylindrical, the through hole 222 is a circular hole, and the axes of the hollow cavity 223 and the through hole 222 coincide with the axis of the push rod 21. The other end of the push rod 21 is further provided with a handle 212, the other end of the push rod 21 extends out of the hollow cavity 223 of the first box 22, and the handle 212 not only facilitates an operator to push the push rod 21, but also prevents the push rod 21 from excessively extending into the hollow cavity 223 of the first box 22.
The elastic component 221 is sleeved at one end of the push rod 21 and located in the hollow cavity 223, one end of the elastic component 221 abuts against the limiting protrusion 211, and the other end of the elastic component 221 abuts against the top wall of the first box 22. The elastic member 221 is provided to provide a restoring elastic force for the restoration of the push rod 21. Specifically, the elastic member 221 may be a compression spring, and the compression spring is integrally located in the hollow cavity 223. Of course, in other embodiments, the elastic member 221, the limiting protrusion 211 and the hollow cavity 223 may be omitted.
The connecting portion 25 is located between the first box 22 and the second box 24, and a via hole 233 is formed on the connecting portion 25. In the present embodiment, the connecting portion 25 has a semicircular ring shape, and the axis of the connecting portion 25 coincides with the axis of the through hole 222 of the first casing 22 and the axis of the push rod 21.
Press the one end of portion 23 to be fixed in on the connecting portion 25, the other end of pressing the portion 23 is the free end, press the free end of portion 23 to be used for passing the changeable ring of via hole 233 in order to form the diameter, the lateral surface of pressing the portion 23 is provided with gag lever post 231, gag lever post 231 is used for the card to go into in the via hole 233.
Specifically, in this embodiment, the pressing and holding portion 23 includes a pressing and holding band 234, one end of the pressing and holding band 234 is fixed on the connecting portion 25, the other end of the pressing and holding band 234 is a free end, the free end of the pressing and holding band 234 passes through the through hole 233 to form a circular ring with a variable diameter, and the limiting rod 231 is disposed on an outer side surface of the pressing and holding band 234. For example, the pressing and holding band 234 is rectangular when unfolded, one end of the pressing and holding band 234 is fixed on the connecting portion 25, the free end of the pressing and holding band 234 passes through the through hole 233 to form a circular ring with a variable diameter, and the initial diameter of the circular ring with the variable diameter is larger than that of the drug stent 1, so that the drug stent 1 can be reliably placed in the circular ring. The grip belt 234 is made of a soft material of medical materials, preferably polyethylene or polyvinyl chloride.
The pressing and holding part 23 further comprises a handle 232, and the handle 232 is arranged at the free end of the pressing and holding belt 234. The pull 232 is used for manual stretching to change the diameter of the variable diameter ring formed by the crimp band 234. For example, the pull 232 may be integrally formed with the squeeze band 234. The free end of the handle 232 is provided with a round chamfer, which facilitates the passing through of the via hole 233.
The axial width of the press-and-hold band 234 is smaller than the axial width of the via hole 233, and the thickness of the press-and-hold band 234 is smaller than the radial width of the via hole 233. Here, the axial direction refers to the axial direction of the connecting portion 25, the push rod 21, and the first case 22, and the radial direction refers to the radial direction of the connecting portion 25. Therefore, the grip tab 234 can smoothly move back and forth in the via 233.
The limiting rod 231 extends along the axial direction, the axial width of the limiting rod 231 is smaller than or equal to that of the through hole 233, and the diameter of the limiting rod 231 is larger than the radial width of the through hole 233. The limiting rod 231 is fixed on the outer side surface of the press-grip belt 234, so that the medicine bracket 1 is pressed to limit the required diameter. When the handle 232 is pulled continuously, the diameter of the variable-diameter circular ring formed by the crimping belt 234 is reduced, and finally the ring is blocked by the limiting rod 231, the limiting rod 231 is clamped into the through hole 233, and the medicine stent 1 is crimped in the stent crimping device 2.
A matching hole 244 is formed in the second box 24, and the through hole 222 and the ring are communicated with the matching hole 244. Specifically, the outer portion of the second casing 24 is conical and has an outer diameter gradually decreasing in a direction away from the first casing 22. The axis of the fitting hole 244 coincides with the axis of the connecting portion 25, the push rod 21, and the first casing 22. During the process that the handle 232 pulls the pressing and holding belt 234 to reduce the diameter of the variable-diameter circular ring formed by the pressing and holding belt 234, the pressing and holding belt 234 is always kept cylindrical, and the axis approaches to the axis of the matching hole 244 of the second box body 24 and finally coincides with the axis.
The fitting hole 244 includes an entrance hole 243, a holding hole 242 and a connecting hole 241 which are sequentially communicated and have coincident axes, the entrance hole 243 is engaged with a variable-diameter ring formed by the pressing portion 23, and the connecting hole 241 is used for connecting a conveyor.
Specifically, the entrance hole 243 is tapered, and a large diameter section of the entrance hole 243 is engaged with the variable diameter ring formed by the pressing portion 23, and the diameter of the large diameter section is slightly larger than the final diameter of the pressed drug stent 1, so that the pressed drug stent 1 can enter the second box 24 conveniently. The small diameter section of the access hole 243 is connected to the holding hole 242, and the diameter of the small diameter section is the final diameter of the drug stent 1 after crimping. The holding hole 242 and the connection hole 241 are both cylindrical holes, and the diameter of the connection hole 241 is larger than that of the holding hole 242. The diameter of the holding hole 242 is constant and is the final diameter of the drug stent 1 to be crimped. The connecting hole 241 is used for connecting the conveyor 3 and has a diameter equal to the outer wall diameter of the conveying head end 31 of the conveyor 3, so that the conveying head end 31 can be inserted into the connecting hole 241.
As shown in fig. 4, the conveyor 3 mainly includes two parts, namely a conveying head end 31 and a conveying rod 32, the conveying head end 31 is used for carrying the drug stent 1 in a pressed state, the conveying head end 31 is of a tubular structure, the pressed drug stent 1 is received inside the conveying head end 31, the diameter of the inner wall of the conveying head end is the pressed diameter of the drug stent 1, and the outer wall of the conveying head end is connected with the connecting hole 241. The drug stent 1 in the delivery head end 31 is pushed out by the action of the delivery rod 32, and the drug stent 1 is delivered to the target nasal cavity position, so that the drug stent 1 is restored to the initial state and acts on the target nasal cavity position. The rest of the pressing and holding part 23 except the elastic part 221, the pressing and holding belt 234 and the handle 232 can be made of common medical plastic materials, preferably polyethylene.
Referring to fig. 2, the drug holder 1 in the initial state is placed in a circular ring with a variable diameter formed by the pressing portion 23, and then the length of the pressing portion 23 penetrating into the through hole 233 is changed (i.e., the position of the free end of the pressing portion 23 relative to the through hole 233 is changed), so that the pressing portion 23 is slowly contracted, the diameter of the circular ring is slowly reduced, and the drug holder 1 is compressed, referring to fig. 3, until the limiting rod 231 is clamped into the through hole 233, and the deformation of the drug holder 1 from the initial state to the pressing state is completed. Referring to fig. 4, the connecting hole 241 of the gripper carrying the drug holder 1 is aligned with the delivery head end 31 of the conveyor 3, so that the delivery head end 31 of the conveyor 3 is inserted into the connecting hole 241 to the bottom of the connecting hole 241, and the position is kept still, at this time, the push rod 21 is slowly pushed to move towards the second box 24, one end of the push rod 21 close to the drug holder 1 slowly pushes the drug holder 1 out of the gripping part 23, and the drug holder 1 is sequentially conveyed into the delivery head end 31 of the conveyor 3 through the inlet hole 243 of the second box 24, the holding hole 242 and the connecting hole 241, and when the push rod 21 is pushed to the maximum position, the drug holder 1 is just completely pressed into the delivery head end 31 of the conveyor 3. The conveyor 3 bearing the medicine stent 1 in the pressing and holding state is pushed to the target release position of the medicine stent 1 by the conveying head end 31 of the conveyor 3 under the coordination of an endoscope according to clinical requirements, the conveying rod 32 is pushed slowly, the medicine stent 1 is pushed out of the conveying head end 31 completely, the medicine stent 1 can be expanded from the pressing and holding state to the initial state, and the implantation of the medicine stent 1 is completed.
Therefore, the medicine rack 1 is pressed and held to the pressing and holding state through the pressing and holding part 23, and then is pushed into the conveying head end 31 of the conveyor 3 by the push rod 21 from the pressing and holding part 23 through the matching hole 244, the medicine rack 1 is always in the pressing and holding state in the pushing process, the rack pressing and holding failure rate can be reduced, and the operation is convenient and reliable, and is simple.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Claims (10)
1. The support pressing and holding device is characterized by comprising a push rod, a first box body, a connecting part, a pressing and holding part and a second box body;
the first box body is provided with a through hole, and one end of the push rod extends into the through hole;
the connecting part is positioned between the first box body and the second box body, and a via hole is formed in the connecting part;
one end of the pressing and holding part is fixed on the connecting part, the other end of the pressing and holding part is a free end, and the free end of the pressing and holding part is used for penetrating through the through hole to form a circular ring with a variable diameter;
and the second box body is internally provided with a matching hole, and the through hole and the circular ring are communicated with the matching hole.
2. The stent squeeze grip of claim 1 wherein the squeeze grip comprises a squeeze grip band, one end of the squeeze grip band is fixed to the connecting portion, the other end of the squeeze grip band is a free end, and the free end of the squeeze grip band passes through the through hole to form the variable diameter ring.
3. The stent squeeze grip of claim 2 wherein the squeeze grip further comprises a pull tab disposed at a free end of the squeeze grip.
4. The stent crimp of claim 2, wherein the axial width of the crimp band is less than the axial width of the via and the thickness of the crimp band is less than the radial width of the via.
5. The holder pressing and grasping device according to claim 2, wherein a limiting rod is arranged on the outer side surface of the pressing and grasping part and is used for being clamped into the through hole.
6. The holder of claim 5, wherein the stop bar is disposed on an outer side surface of the grip belt, the stop bar extends in an axial direction, an axial width of the stop bar is smaller than or equal to an axial width of the via hole, and a diameter of the stop bar is greater than a radial width of the via hole.
7. The holder according to any one of claims 1 to 6, wherein the fitting hole comprises an inlet hole, a holding hole and a connecting hole which are communicated in sequence, the inlet hole is engaged with a variable diameter ring formed by the pressing portion, and the connecting hole is used for connecting a conveyor.
8. The stent squeeze grip of claim 7 wherein the access hole is tapered, a larger diameter section of the access hole engaging a variable diameter ring formed by the grip portion, and a smaller diameter section of the access hole engaging the retention hole.
9. The stent squeeze grip of claim 8 wherein the retention hole and the attachment hole are both cylindrical holes and the attachment hole has a diameter greater than the diameter of the retention hole.
10. The holder according to any one of claims 1 to 6, further comprising an elastic member, wherein a limiting protrusion is disposed on an outer peripheral side of the push rod, the first case further comprises a hollow cavity communicated with the through hole, the elastic member is sleeved at one end of the push rod and located in the hollow cavity, one end of the elastic member abuts against the limiting protrusion, and the other end of the elastic member abuts against a top wall of the first case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591980.5U CN216257676U (en) | 2021-10-27 | 2021-10-27 | Support pressing and holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591980.5U CN216257676U (en) | 2021-10-27 | 2021-10-27 | Support pressing and holding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216257676U true CN216257676U (en) | 2022-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122591980.5U Active CN216257676U (en) | 2021-10-27 | 2021-10-27 | Support pressing and holding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216257676U (en) |
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2021
- 2021-10-27 CN CN202122591980.5U patent/CN216257676U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220905 Address after: Room 206, 2nd Floor, Building 1, No. 1601, Zhangdong Road, China (Shanghai) Pilot Free Trade Zone, Pudong New Area, Shanghai, 200000 (Nominal Floor 2nd Floor, Actual Floor 3rd Floor) Patentee after: Shanghai MicroPort Medical Technology Co.,Ltd. Address before: 501 Newton Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200135 Patentee before: SHANGHAI MICROPORT MEDICAL (GROUP) Co.,Ltd. |
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| TR01 | Transfer of patent right |