CN115501454A - Hydrophilic coating wire guide device capable of adjusting resistance - Google Patents
Hydrophilic coating wire guide device capable of adjusting resistance Download PDFInfo
- Publication number
- CN115501454A CN115501454A CN202211002183.1A CN202211002183A CN115501454A CN 115501454 A CN115501454 A CN 115501454A CN 202211002183 A CN202211002183 A CN 202211002183A CN 115501454 A CN115501454 A CN 115501454A
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- China
- Prior art keywords
- barrel
- resistance
- axial
- hydrophilic coating
- wall
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M25/09041—Mechanisms for insertion of guide wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09133—Guide wires having specific material compositions or coatings; Materials with specific mechanical behaviours, e.g. stiffness, strength to transmit torque
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0238—General characteristics of the apparatus characterised by a particular materials the material being a coating or protective layer
Abstract
The invention discloses a hydrophilic coating guide wire device for adjusting resistance, which comprises a sheath tube and a guide wire penetrating through the sheath tube, and is characterized in that a resistance adjusting section is arranged at the near end of the sheath tube, a cylinder body is sleeved on the resistance adjusting section in a sliding manner, a squeezing cover is screwed on the cylinder body, the cylinder body is driven to move axially along the resistance adjusting section by the rotation of the squeezing cover, and the resistance adjusting section is squeezed by the axial movement of the cylinder body. According to the hydrophilic coating guide wire device for adjusting the resistance, the extrusion cover is rotated to enable the extrusion cover to extrude the cylinder body to slide downwards, the resistance adjusting section is extruded in the process that the cylinder body slides downwards to enable the resistance adjusting section to slowly reduce the radial size of the internal channel of the sheath tube, and therefore after the hydrophilic coating guide wire enters the blood vessel through the sheath tube, an operator can adjust the internal channel of the sheath tube through rotating the extrusion cover so as to adjust the movement resistance of the hydrophilic coating guide wire.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a hydrophilic coating guide wire device for adjusting resistance.
Background
With the continuous development of medicine, the medical interventional operation is also greatly developed, the interventional guide wire is the most common instrument for the interventional operation, the intracavity operation usually needs a guide wire as a guide, and the hydrophilic coating guide wire mainly has the main function of leading a guide tube to reach the appointed operation position in a vascular system in diagnosis or interventional treatment and is a necessary instrument for the interventional diagnosis and treatment.
The hydrophilic coating guide wire in the prior art is also an ultra-smooth guide wire, the hydrophilic coating of the guide wire can improve the lubricating property after being properly combined with water, when the guide wire is used, the whole guide wire is soaked for at least 30 seconds, at the moment, the guide wire has ultra-lubricating property, so that an operator can conveniently insert into a blood vessel to a lesion part, but the guide wire also has the additional disadvantage. Some arteries have variation during walking, if the speed is too high, the arteries have an escape phenomenon, the escape phenomenon enables the relaxation speed to be slow, so that the ultra-smooth guide wire has a probability of forcibly rubbing the blood vessels to cause thrombus, and some thrombus occlusion after operation is caused.
For example, the utility model patent with the publication number of CN211132626U and the publication date of 2020, 07, 31 and named as hydrophilic coating guide wire comprises a guide wire inner core, a coating layer coated outside the guide wire inner core and a cylindrical elastic part arranged between the guide wire inner core and the coating layer; the guide wire inner core comprises an inner core main body and an inner core end connected with the inner core main body; the outer diameter of the inner core head end is smaller than that of the inner core main body; the cylindrical elastic piece is sleeved at the head end of the inner core and is abutted with the coating layer; the surface of coating is equipped with hydrophilic coating, the utility model discloses the tube-shape elastic component cover is located the inner core head end and with coating looks butt, consequently the tube-shape elastic component can effectively fill the space between inner core head end and the coating (the external diameter of inner core head end is less than the external diameter of inner core main part, the possibility that has the space between consequently processing back inner core head end and the coating is great), has promoted the wholeness of seal wire inner core and coating, can effectively avoid inner core head end extrusion coating and puncture the coating, has promoted the security of using.
The disadvantages of the above patents are that too fast a hydrophilic coated guidewire is intravascular leading to rupture of small branches of small vessels or some arteries are tortuous and plaque and too fast a guidewire can hit plaque causing surgical accidents.
Disclosure of Invention
The invention aims to provide a hydrophilic coating guide wire device for adjusting resistance, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides an adjust hydrophilic coating wire device of resistance, includes the sheath pipe and wears to locate the interior seal wire of sheath pipe, the near-end of sheath pipe is provided with the resistance and adjusts the section, the barrel has been cup jointed in the slip on the resistance regulation section, the barrel spiro union has extrusion lid, the rotation drive of extrusion lid the barrel along resistance regulation section axial displacement, the axial displacement extrusion of barrel the resistance regulation section.
In the hydrophilic coating guide wire device, the inner wall of the barrel and the outer wall of the resistance adjusting section are both of a structure in which the radial dimension is gradually reduced from the distal end to the proximal end.
In the hydrophilic coating guide wire device, the inner wall of the barrel body is of a structure with the same radial dimension, and the outer wall of the resistance adjusting section is of a structure with the radial dimension gradually increasing from the proximal end to the distal end.
The hydrophilic coating wire guide device is characterized in that the barrel body is divided into an upper barrel body and a lower barrel body, a plurality of axial through grooves are formed in the upper barrel body along the circumferential direction, the lower barrel body is sleeved with the upper barrel body, a plurality of protruding ribs are arranged on the inner wall of the lower barrel body, and the protruding ribs and the axial through grooves are arranged in a one-to-one sliding mode.
In the hydrophilic coating wire guide device, the number of the convex ribs and the number of the axial through grooves are four.
According to the hydrophilic coating thread guide device, the outer wall of the upper barrel is provided with the plurality of annular grooves, the plurality of annular grooves are arranged in parallel along the axial direction, the near end of the lower barrel is provided with the annular protrusion, and the annular protrusion can sequentially pass through the annular grooves on the axial stroke of the lower barrel.
In the hydrophilic coating wire guide device, the intervals between the annular grooves are inconsistent.
In the hydrophilic coating thread guide device, the resistance adjusting section is made of soft elastic material capable of elastically deforming.
In the hydrophilic coating wire guide device, the barrel is provided with the rotation limiting mechanism, and the rotation limiting mechanism enables the barrel to move only along the axial direction of the sheath tube and cannot rotate.
In the hydrophilic coating wire guide device, the rotation limiting mechanism comprises an axial protrusion arranged on the inner wall of the cylinder body, an axial groove matched with the axial protrusion is arranged on the sheath tube, and the axial protrusion is connected in the axial groove in a sliding manner.
In the technical scheme, according to the hydrophilic coating guide wire device for adjusting the resistance, the extrusion cover is rotated to enable the extrusion cover to extrude the cylinder body to slide downwards, the resistance adjusting section is extruded in the downward sliding process of the cylinder body, so that the radial size of the internal channel of the sheath tube is slowly reduced, and thus after the hydrophilic coating guide wire enters the blood vessel through the sheath tube, an operator can adjust the internal channel of the sheath tube through rotating the extrusion cover to adjust the motion resistance of the hydrophilic coating guide wire.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural diagram of a hydrophilic coated guidewire device for adjusting resistance provided by an embodiment of the invention;
FIG. 2 is a cross-sectional view of a resistance-modulating hydrophilic coated guidewire device provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the lower barrel structure of a resistance-adjusting hydrophilic coated guidewire device provided by an embodiment of the invention;
FIG. 4 is a schematic diagram of a resistance adjusting section of a hydrophilic coating guide wire device for adjusting resistance provided by an embodiment of the invention;
fig. 5 is a cross-sectional view of the upper barrel of a resistance-modulating hydrophilic coated guidewire device provided by an embodiment of the invention.
Description of reference numerals:
1. a sheath tube; 2. a cylinder body; 3. an upper cylinder body; 4. a lower cylinder body; 5. extruding a cover; 6. a hydrophilic coated guidewire; 7. a resistance adjustment section; 8. a raised rib; 9. an axial through slot; 10. an annular groove; 11. an annular protrusion.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
In various embodiments of the present invention, "proximal" and "distal" are relative orientations, relative positions, and orientations of elements or actions with respect to one another from the perspective of a clinician using the medical device, although "proximal" and "distal" are not intended to be limiting, with "proximal" generally referring to the end of the medical device that is closer to the clinician during normal operation and "distal" generally referring to the end that is further from the clinician into the patient's body first.
Referring to fig. 1 to 5, an embodiment of the present invention provides a hydrophilic coating guide wire device for adjusting resistance, including a sheath tube 1 and a hydrophilic coating guide wire 6 inserted into the sheath tube 1, a resistance adjusting section 7 is disposed at a proximal end of the sheath tube 1, a cylinder 2 is slidably sleeved on the resistance adjusting section 7, the cylinder 2 is screwed with a pressing cover 5, rotation of the pressing cover 5 drives the cylinder 2 to axially move along the resistance adjusting section 7, and axial movement of the cylinder 2 presses the resistance adjusting section 7.
Specifically, as shown in fig. 1, a distal end (i.e., an end that enters a human body) of the sheath tube 1 is configured to be placed in an artery, a hydrophilic coating guide wire 6 (i.e., an ultra-smooth guide wire) is formed inside the sheath tube 1 and enters an internal channel of an arterial blood vessel, a resistance adjusting section 7 is disposed at a proximal end (i.e., an end that is far away from a patient) of the sheath tube 1, the resistance adjusting section 7 is configured to adjust resistance when the hydrophilic coating guide wire 6 passes through the sheath tube 1, the resistance adjusting section 7 is a section on the sheath tube 1, the resistance adjusting section 7 is a soft elastic material and can be elastically deformed, the size of a radial dimension of the internal channel of the closed sheath tube 1 can be slowly changed by squeezing the soft elastic material, obviously, the difference of the radial dimension of the internal channel can provide different resistance for the hydrophilic coating guide wire 6, and thus squeezing the resistance adjusting section 7 can adjust resistance when the hydrophilic coating guide wire 6 passes through the sheath tube 1, the resistance adjusting section 7 is sleeved with the cylinder body 2 in a sliding manner, namely the cylinder body can move along the axial direction of the sheath pipe 1 but cannot rotate on the sheath pipe 1, and is provided with a corresponding rotation limiting mechanism, for example, an axial bulge is arranged on the inner wall of the cylinder body, an axial groove matched with the axial bulge is arranged on the sheath pipe, and the axial bulge is connected in the axial groove in a sliding manner, so that the rotation of the cylinder body can be limited, and the cylinder body can only move axially, a squeezing cover 5 is screwed above the cylinder body 2 (at one end close to the near end of the sheath pipe 1), the squeezing cover 5 is connected on the sheath pipe 1 in a rotating manner, namely, the squeezing cover 5 can only rotate on the sheath pipe 1 but can not move axially, and as the squeezing cover 5 is screwed with the cylinder body 2, the cylinder body 2 can be driven to move axially when the squeezing cover 5 rotates, the main point of the present invention is that, because the cylinder 2 and the extrusion cover 5 are in threaded connection, when an operator rotates the extrusion cover 5, the thread can generate axial driving force when the thread rotates, the cylinder 2 can move axially, and at this time, the cylinder 2 can extrude the resistance adjustment section 7 to change the radial dimension of the internal channel thereof, and the resistance of the hydrophilic coating guide wire 6 passing through the internal channel of the sheath tube 1 changes, so that the effect of adjusting the resistance can be achieved.
In this embodiment, in order to enable the axial movement of the cylinder 2 to bring about a change in the radial dimension of the resistance adjustment section 7, there may be at least three different embodiment modes: firstly, the inner wall of the cylinder body 2 and the outer wall of the resistance adjusting section 7 are both of a structure with radial sizes gradually reduced along the axial direction (from the far end to the near end), so that the sizes of the matching parts of the resistance adjusting section 7 and the inner wall of the cylinder body are gradually reduced during the axial movement, and the resistance adjusting section 7 is extruded; secondly, the inner wall of the cylinder 2 is of the same structure with the same radial dimension, but the outer wall of the resistance adjusting section 7 is of a structure with the gradually increasing radial dimension (from the near end to the far end), and at the moment, the cylinder 2 gradually presses different parts of the resistance adjusting section 7 when moving so as to realize the adjustment of the radial dimension of the inner channel thereof.
According to the hydrophilic coating guide wire 6 device for adjusting the resistance, the extrusion cover 5 is rotated to enable the extrusion cover 5 to extrude the cylinder body 2 to slide downwards, the resistance adjusting section 7 is extruded in the downward sliding process of the cylinder body 2 to enable the radial size of the internal channel of the sheath tube 1 to be reduced, and therefore after the hydrophilic coating guide wire 6 enters a blood vessel through the sheath tube 1, an operator can adjust the internal channel of the sheath tube 1 through rotating the extrusion cover 5 to adjust the motion resistance of the hydrophilic coating guide wire 6.
In another embodiment provided by the present invention, as shown in fig. 2, the barrel 2 includes an upper barrel 3 and a lower barrel 4, the proximal end of the upper barrel 3 is screwed with the pressing cover 5, the lower barrel 4 is sleeved on the distal end of the upper barrel 3, such that the pressing cover 5 rotates to drive the upper barrel 3 to move axially, the lower barrel 4 is sleeved on the upper barrel 3, at this time, the upper barrel 3 drives the lower barrel 4 to move axially synchronously, and the effect of the lower barrel 4 being sleeved on the upper barrel 3 is that the upper barrel 3 can drive the lower barrel 4 to move, and the lower barrel 4 cannot drive the upper barrel 3 to move when moving. Simultaneously, go up barrel 3 and go up and be provided with a plurality of axial through groove 9 along the circumference array, set up a plurality of protruding ribs 8, a plurality of on the inner wall of barrel 4 down protruding rib 8 is with a plurality of the axial is led to groove 9 one-to-one and is slided and is set up, so the effect that sets up lies in, can directly manually stimulate barrel 4 axial under to the distal end remove to extrude resistance adjustment section 7 and make its quick closed sheath pipe 1's inside passage for barrel 2 in this embodiment can play the effect of switch.
In still another embodiment of the present invention, as shown in fig. 5, a plurality of annular grooves 10 are provided on the outer wall of the upper barrel 3, the plurality of annular grooves 10 are arranged side by side along the axial direction, an annular protrusion 11 is provided on the proximal end of the lower barrel 4, the annular grooves 10 and the annular protrusion 11 are both elastic, during the axial movement of the lower barrel 4, the annular protrusion 11 on the lower barrel 4 sequentially passes through each annular groove 10, and when the annular protrusion 11 passes through the annular groove 10, there is a distinct click feeling, so that an operator knows that passing through the annular groove 10, it is obvious that the annular protrusion 11 compresses the resistance adjusting section 7 by the corresponding protrusion rib 8 in different annular grooves 10, that is, the radial dimension of the inner channel is different, and it is obvious that the radial dimension of the inner channel of the sheath catheter 1 is larger than the radial dimension of the annular protrusion 11 when passing through the annular groove 10 near the proximal end, and in general, the diameter of the hydrophilic coating 6 ranges from 0.0635mm to 0.2 mm, the diameter of the sheath 1mm to 1mm, and when the inner channel 10 passes through the annular protrusion 10, the annular groove 10, the inner channel is different in order that the inner channel of the hydrophilic coating 6 is not able to be pulled through the catheter, and the catheter 4, and the inner channel of the catheter 4, and the hydrophilic coating 6 is different in the catheter can be adjusted by the same. When the hydrophilic coating guide wire 6 and the common guide wire are used, an operator can select the sheath internal channel suitable for the hand feeling of the operator according to the number of the annular grooves 10, and the annular groove 10 at the farthest end corresponds to the closed internal channel. Namely, the lower cylinder body 4 is pulled to carry out rough adjustment, and then the squeezing cover 5 is rotated to carry out fine adjustment, so that the relatively quick hand feeling adjustment is realized.
In another embodiment of the present invention, as shown in fig. 4, the outer wall surface of the resistance adjusting section 7 may be a conical column, and the inner wall surface is a cylindrical hole with a uniform radial dimension, that is, the outer wall surface gradually changes from a proximal end to a distal end, preferably, the conical column is a structure with a gradually increasing radial dimension from the proximal end to the distal end, and during the downward movement of the lower cylinder 4, the plurality of protruding ribs 8 also move downward to press the conical column, and at this time, the radial dimension of the conical column decreases from large to small until the entire internal channel of the sheath 1 is closed, and the resistance adjusting section 7 is a conical column, which has the advantage that the resistance when the hydrophilic coating guide wire 6 passes through the sheath 1 can be adjusted by pressing the conical column with an external force to press the internal channel of the sheath 1, and when the lower cylinder 4 is pulled downward, the conical column receives a force toward the middle, so as to adjust the radial dimension of the internal channel of the sheath 1.
In the most preferred embodiment provided by the invention, the inner wall of the cylinder 2 and the outer wall of the resistance adjusting section 7 are both of a structure that the radial dimension is gradually reduced along the axial direction (from the far end to the near end), but the inner wall of the cylinder 2 and the outer wall of the resistance adjusting section 7 are not cones but elliptical cones, that is, the inner wall of the cylinder is an elliptical cone frustum hole, the outer wall of the resistance adjusting section is an elliptical cone frustum, but the inner part of the resistance adjusting section is a cylinder hole, so that the thickness of the wall of the resistance adjusting section is uneven, the part positioned on the long axis of the ellipse is thicker, and the part positioned on the short axis of the ellipse is thinner, synchronously, only two groups of the raised ribs 8 are provided, each group is 1-3, and the two groups of the raised ribs 8 are respectively pressed and attached to two opposite sides of the short axis of the elliptical cone frustum, so that three benefits are brought.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides an adjust hydrophilic coating wire device of resistance, includes the sheath pipe and wears to locate the seal wire in the sheath pipe, its characterized in that, the near-end of sheath pipe is provided with the resistance and adjusts the section, the barrel has been cup jointed in the slip on the resistance regulation section, the barrel spiro union has extrusion lid, extrusion lid's rotation drive the barrel along resistance regulation section axial displacement, the axial displacement extrusion of barrel the resistance regulation section.
2. The hydrophilic coated guidewire device of claim 1, wherein the inner wall of the barrel and the outer wall of the resistance adjustment segment are each of a configuration that tapers in radial dimension from the distal end to the proximal end.
3. The hydrophilic coated guidewire device of claim 1, wherein the inner wall of the barrel is of uniform radial dimension configuration and the outer wall of the resistance adjusting segment is of increasing radial dimension from the proximal end to the distal end.
4. The hydrophilic coating wire guide device according to any one of claims 1 to 3, wherein the barrel is divided into an upper barrel and a lower barrel, a plurality of axial through grooves are formed in the upper barrel along the circumferential direction, the lower barrel is sleeved outside the upper barrel, a plurality of protruding ribs are arranged on the inner wall of the lower barrel, and the protruding ribs and the axial through grooves are arranged in a one-to-one sliding mode.
5. The hydrophilic coated guidewire device of claim 4, wherein the number of raised ribs and axial channels is four.
6. The hydrophilic coated guidewire device of claim 4, wherein the outer wall of the upper barrel is provided with a plurality of annular grooves, the plurality of annular grooves are axially arranged in parallel, the proximal end of the lower barrel is provided with an annular protrusion, and the annular protrusion sequentially passes through each annular groove on the axial stroke of the lower barrel.
7. The hydrophilic coated guidewire device of claim 6, wherein the annular grooves are non-uniformly spaced.
8. The hydrophilic coated guidewire device of claim 1, wherein the resistance adjustment section is a soft, resiliently deformable, elastomeric material.
9. The hydrophilic coated guidewire device of claim 1, wherein the barrel is provided with a rotational stop mechanism that allows the barrel to move only axially along the sheath and not rotate.
10. The hydrophilic coated guidewire device of claim 9, wherein the rotation limiting mechanism comprises an axial protrusion disposed on an inner wall of the barrel, and the sheath is provided with an axial groove engaged with the axial protrusion, the axial protrusion being slidably coupled to the axial groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211002183.1A CN115501454A (en) | 2022-08-21 | 2022-08-21 | Hydrophilic coating wire guide device capable of adjusting resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211002183.1A CN115501454A (en) | 2022-08-21 | 2022-08-21 | Hydrophilic coating wire guide device capable of adjusting resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115501454A true CN115501454A (en) | 2022-12-23 |
Family
ID=84501596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211002183.1A Withdrawn CN115501454A (en) | 2022-08-21 | 2022-08-21 | Hydrophilic coating wire guide device capable of adjusting resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115501454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116115307A (en) * | 2023-02-10 | 2023-05-16 | 河北康誉医疗器械有限公司 | Contrast guide wire device for controlling resistance |
-
2022
- 2022-08-21 CN CN202211002183.1A patent/CN115501454A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116115307A (en) * | 2023-02-10 | 2023-05-16 | 河北康誉医疗器械有限公司 | Contrast guide wire device for controlling resistance |
| CN116115307B (en) * | 2023-02-10 | 2023-09-22 | 河北康誉医疗器械有限公司 | Contrast guide wire device for controlling resistance |
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Application publication date: 20221223 |
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