[go: up one dir, main page]

WO2018121362A1 - Système médical d'intervention, dispositif de distribution et appareil médical implantable - Google Patents

Système médical d'intervention, dispositif de distribution et appareil médical implantable Download PDF

Info

Publication number
WO2018121362A1
WO2018121362A1 PCT/CN2017/117287 CN2017117287W WO2018121362A1 WO 2018121362 A1 WO2018121362 A1 WO 2018121362A1 CN 2017117287 W CN2017117287 W CN 2017117287W WO 2018121362 A1 WO2018121362 A1 WO 2018121362A1
Authority
WO
WIPO (PCT)
Prior art keywords
card
engaging portion
head
snap
medical system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/117287
Other languages
English (en)
Chinese (zh)
Inventor
李思漪
李安宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lifetech Scientific Shenzhen Co Ltd
Original Assignee
Lifetech Scientific Shenzhen Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lifetech Scientific Shenzhen Co Ltd filed Critical Lifetech Scientific Shenzhen Co Ltd
Publication of WO2018121362A1 publication Critical patent/WO2018121362A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/08—Wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together the edges of a wound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/011—Instruments for their placement or removal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties

Definitions

  • the present invention relates to the field of interventional medical devices, and more particularly to an implantable medical device placed at a selected portion of a human body, a delivery device for delivering the implanted medical device to the selected portion, and the implanted medical device And interventional medical systems for delivery devices.
  • Interventional therapy refers to a means of treating diseases by catheter-transporting materials, medical devices, and drugs to the treatment site under the guidance of a medical imaging device.
  • interventional therapy has become one of the three modern medical treatment methods along with traditional medical treatment and surgical treatment. Cardiac and vascular disorders are the most widely used areas of interventional therapy.
  • interventional treatment has achieved the clinical effect that can not be achieved by previous medical treatment, and in some cases has the tendency to replace surgery.
  • radiofrequency ablation for paroxysmal supraventricular tachycardia, atrial fibrillation, atrial flutter, various premature beats, ventricular tachycardia occlusion device for congenital heart disease, arterial catheterization, II hole central atrial septal defect, Balloon dilatation for the treatment of mitral stenosis and pulmonary stenosis, stent implantation for coronary heart disease and various vascular stenosis, pacemaker treatment of bradycardia, prevention of sudden death, treatment of heart failure, etc., some diseases can completely cure Effect.
  • interventional therapy has the following outstanding advantages: (1) less trauma and less pain. Since the surgery is not performed, the surgery is performed only through a catheter of 2 to 3 mm thickness, so the trauma is small. (2) Recovery is fast. It is because of the small trauma that the patient recovers quickly after surgery. Usually, patients with cardiovascular disease intervention can get out of bed 24 hours after surgery, and they can take care of themselves in daily life. (3) Good and safe. Because the interventional treatment does not open the knife, there is no need for general anesthesia, no healing of the wound, etc., thus avoiding many complications often encountered during surgery and after surgery, and the safety is greatly improved. (4) A desire to conform to the requirements of modern people.
  • catheter intervention is used to place a variety of materials, instruments and drugs into the heart, arteries, veins, trachea and bronchus of the human body. system.
  • a valve repair device a cardiac defect occluder, a vascular plug, a vascular filter, a lung volume reduction device, etc.
  • interventional therapy can be placed at a selected location by interventional therapy.
  • a threaded connection is usually used to achieve the connection between the interventional medical device and the delivery body.
  • the thread can be divided into a left-hand thread and a right-hand thread.
  • the implanted medical device is pushed into the designated area of the human body, and the push-pull, bend, and twist between the implanted medical device and the transport body may occur.
  • Etc During the process of transporting the medical device to the designated area of the human body, when the counter-clockwise rotation occurs between the medical device and the transport body, the meshing portion of the threaded connection region between the implanted medical device and the transport body is reduced, so that the implanted medical device reaches the human body.
  • An interventional medical system provided by the present invention includes an instrument provided with a snap portion and a hollow transport body provided with a card head, wherein the interventional medical system further comprises a movable passage through the transport An expansion member of the body lumen; the card head including at least one card extending generally toward a longitudinal central axis of the card head, the card having elasticity, expansion of a radially outward force of the expansion member Actingly, the card of the card head is engaged with the carding portion, such that the carding portion is connected to the card head, and when the expansion member moves relative to the conveying body, it is no longer radially expanded. When the card is The card is ejected from the snap portion to separate the instrument from the transport body.
  • the number of cards of the card head is plural, and the plurality of cards are evenly distributed along the circumference of the card head.
  • the latching portion is provided with at least one latching slot.
  • the latching portion is connected to the latching portion, at least the latching header is received in the latching slot of the latching portion.
  • At least one card At least one card.
  • the engaging groove of the engaging portion extends in the axial direction of the engaging portion.
  • the engaging portion includes at least one hollow tube having a proximal opening, the proximal lumen of the hollow tube forming a snap groove of the engaging portion, and an inner wall of the engaging groove Provided with a first flange extending toward a central axis of the hollow tube, the outer wall of the card of the card head being provided with a second ledge extending away from a longitudinal central axis of the card head, a second protruding edge is inserted into the engaging groove of the engaging portion, and the second protruding edge is engaged with the first protruding edge under the expansion of the radially outward force of the expanding member , the snap portion is connected to the card head.
  • the engaging portion includes a plurality of spaced apart locking pieces, and the engaging groove of the engaging portion is located between two adjacent locking pieces of the engaging portion. Inserting at least one card of the card head into at least one snap groove of the latching portion to cause the latching portion and the chucking head under the expansion of the radially outward force of the expanding member Connected to the department.
  • the length of the proximal end of the engaging groove of the engaging portion in the circumferential direction of the engaging portion is smaller than the length of the distal end thereof in the circumferential direction of the engaging portion.
  • the proximal end of the latching tab of the latching portion has a length along the circumferential direction of the latching portion that is greater than a length of the distal end thereof along the circumferential direction of the latching portion.
  • the engaging portion includes a body segment, and the locking piece of the engaging portion is disposed on a proximal end surface of the body segment.
  • the locking piece of the main body segment and the engaging portion is an integral structure formed by cutting the same hollow tube.
  • the invention provides a conveying device, wherein the engaging groove of the engaging portion comprises a ⁇ -type structure, and a maximum length of the distal end of the T-shaped structure in a circumferential direction of the engaging portion is greater than a proximal end of the ⁇ -shaped structure The minimum length in the circumferential direction of the snap portion.
  • the card includes a ⁇ -type sheet, and the card distal end is circumferentially along the card head The maximum length of the card is greater than the minimum length of the proximal end of the card along the circumferential direction of the card head.
  • the outer sheath is further provided with a protective sheath, and the protective sheath is recessed from the distal end to the proximal end to form a receiving groove, and the minimum diameter of the inner cavity of the receiving slot is greater than or equal to the snapping Outer Diameter
  • the receiving groove accommodates the connection between the card head and the implanted medical device.
  • the present invention provides an implanted medical device, wherein the engaging portion is provided with at least one engaging groove, and the engaging groove of the engaging portion extends along the axial direction of the engaging portion, and the engaging portion includes At least one hollow tube having a distal opening, the proximal lumen of the hollow tube forming a snap groove of the engaging portion, and the inner wall of the engaging groove is provided with at least one longitudinal central axis toward the engaging groove The first convex edge extending in the direction.
  • the first ledge is located at a proximal end of the snap slot.
  • the number of the first rims is one, and the first rim is an annular structure that is coaxial with the longitudinal center axis of the hollow tube.
  • the invention provides a delivery device for implanting a medical device, comprising a transport body, the transport body comprising a card head detachably connected to the implanted medical device, wherein the transport device further comprises a movable wearable An expansion member disposed in the delivery body cavity, the card head including at least one card extending from a proximal end to a distal end substantially toward a longitudinal central axis of the card head, the card having elasticity, the card being The expansion member expands under the action of a radially outward force and restores shape as the expansion member moves relative to the delivery body until the card is no longer radially expanded.
  • the number of cards of the card head is plural, and the cards of the plurality of card heads are spaced apart from each other.
  • the card includes a ⁇ -type sheet, and the length of the distal end thereof along the circumference of the card head is the maximum length of the card along the circumference of the card head.
  • the card is uniform in thickness.
  • the outer wall of the card distal end of the card head is provided with a second ledge extending away from the longitudinal central axis of the card head.
  • the transport body jacket is provided with a protective sheath, the protective sheath A receiving groove is formed from the distal end to the proximal end, and the protective sheath surrounds the card head.
  • the interventional medical system provided by the technical solution of the present invention provides a movable expansion member in the conveying body.
  • a movable expansion member in the conveying body.
  • at least one card of the card head is in a gathered state, and is inserted into the engaging groove of the engaging portion.
  • the expansion member By moving the expansion member, the plurality of cards are engaged with the engaging portion under the radial expansion of the expanding member, thereby completing the connection between the instrument and the conveying body.
  • the present invention completely avoids the use of a threaded connection to connect the implanted medical device and the transport body, ensuring the normal release of the implanted medical device and reducing the risk of surgery.
  • the expansion member is kept at the current position, the fastening of the device to the transport body during the operation can be ensured, and when the device and the transport body are connected,
  • the card slot of the card engaging portion is larger, and the card of the card head is in a gathered state, so that the card is more conveniently and easily inserted into the engaging slot of the engaging portion without being completely aligned. Simplifies the alignment operation. In the separation, it is only necessary to withdraw the expansion member from the transport body to leave the card, so that the card can be separated from the card slot, thereby completing the separation of the instrument from the transport device, and the operation is more convenient.
  • FIG. 1 is a schematic view showing a display effect according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of an interventional medical system according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a snap-fit portion of an implanted medical device of the interventional medical system of FIG. 2;
  • FIG. 4 is a schematic view of another angle of the snap-fit portion of FIG.
  • Figure 5 is a schematic view showing the structure of the transport body of the implanted medical device device of Figure 2;
  • FIG. 6 is a schematic view showing a state in which the expansion member of the interventional medical system of FIG. 2 is gradually extended to the delivery body;
  • FIG. 7 is a schematic view showing the connection state between the implanted medical device and the delivery body of the interventional medical system of FIG. 2;
  • Figure 8 is a cross-sectional view along line AA and line BB of the interventional medical system of Figure 7;
  • Figure 9 is a view of the implanted medical device and the transport body in the interventional medical system of Figure 7 in a direction perpendicular to the longitudinal center axis of the transport body a schematic view of the projection on the upper section;
  • FIG. 10 is a schematic structural diagram of an interventional medical system according to another embodiment of the present invention.
  • Figure 11 is an exploded perspective view of the interventional medical system of Figure 10
  • Figure 12 is a schematic view showing the connection state between the implanted medical device and the transport body of the interventional medical system of Figure 10;
  • FIG. 13 is a schematic structural view of a snap portion of the interventional medical system of FIG. 10;
  • Figure 14 is a schematic cross-sectional view of the interventional medical system A-A of Figure 12;
  • Figure 15 is a schematic cross-sectional view of the interventional medical system B-B of Figure 12;
  • Figure 16 is a schematic illustration of the projection of the implanted medical device and the transport body in the cross-sectional direction perpendicular to the longitudinal central axis of the transport body in the interventional medical system of Figure 12;
  • 17 is a schematic structural diagram of an interventional medical system according to still another embodiment of the present invention.
  • Figure 18 is an exploded perspective view of the interventional medical system shown in Figure 17;
  • Fig. 19 is a view showing the state of connection between the implanted medical device and the transport body of the interventional medical system shown in Fig. 17.
  • interventional medical system-10 interventional medical system-10, instrument-110, transport body-200, card head-211, catheter-201, delivery device-500, snap-on-120, expansion member-300, body segment-121, Locking tab -123, snap groove -125, cable segment -203, card -215. detailed description
  • an element when referred to as being “fixed” to another element, it can be directly on the other element or the element can be present. When an element is considered to be “connected” to another element, it can be directly connected to the other element or.
  • the end near the operator is usually referred to as the proximal end, and the end far from the operator is referred to as the distal end.
  • the interventional medical device includes a medical device main body portion and a catching portion connected to the medical device main body portion.
  • the medical device body portion is a portion of the interventional medical device for implementing a medical function
  • the carding portion is a portion of the interventional medical device for connection with the transport body.
  • Implementations of the present invention are for use in an interventional medical device, as shown in Figure 1, which includes at least an interventional medical system 10.
  • the interventional medical system 10 includes an implanted medical device 110 for transporting the delivery body 200 of the implanted medical device 110.
  • the implanted medical device 110 is typically coupled to the card head 211 of the delivery body 200 and placed within the catheter 201 for movement within the patient's tissue cavity 101 until the delivery body 200 and implanted medical device are removed after being in a selected position.
  • the connection between the 110s places the implanted medical device 110 into a selected location for minimally invasive treatment.
  • the tissue cavity 101 can be a cavity formed by the tissue wall 102.
  • the tissue cavity 101 includes a blood vessel cavity, a intestinal lumen, a heart chamber, and a trachea.
  • the tissue cavity 101 can also include a human body that can be reached by current interventional therapy.
  • the implantable medical device 110 referred to herein may be any medical device for interventional therapy, such as a cardiac defect occluder, a valve repair device, a vascular plug, a thrombus filter, a lung volume reduction device, and the like.
  • the delivery body 200 is an elongate object for interventional therapy, such as a steel cable or the like, the distal end of which is intended to be coupled to the implanted medical device 110.
  • the far end here refers to the farthest end from the operator in Figure 1, and the relatively near end is the end closest to the operation.
  • the interventional medical system 10 has been improved. Specific improvements in conjunction with the drawings are described below.
  • An embodiment of the present invention provides an interventional medical treatment system 10.
  • the interventional medical system 10 includes an implanted medical device 110 and a delivery device 500.
  • the instrument 110 includes a snap portion 120 that is located on the implanted medical device 110.
  • the transport device 500 includes a transport body 200 and an expander 300 that is disposed through the transport body 200 and that is axially movable relative to the transport body 200.
  • the conveying body 200 includes a chuck portion 211 in which the distal ends are close to each other in a natural state (in a state free from an external force). When the distal end of the expansion member is moved to the distal end of the card head 211, the expansion member can expand the card head portion 211. Referring to FIG. 3 and FIG.
  • the engaging portion 120 includes a hollow main body segment 121 and at least two locking pieces 123 circumferentially spaced along the main body segment 121. In the circumferential direction of the engaging portion 120, a latching groove 125 is formed between the adjacent two first locking pieces 123. Each of the engaging grooves 125 penetrates the proximal end surface of the engaging portion 120, and the length of the proximal end thereof in the circumferential direction of the engaging portion 120 is smaller than the length of the distal end thereof in the circumferential direction of the engaging portion 120.
  • the number of the locking pieces 123 is two, and the two locking pieces 123 are disposed on the proximal end surface of the main body segment 121.
  • Each of the locking pieces 123 is a T-shaped piece, and the distal end thereof
  • the circumferential length of the engaging portion 120 is the minimum length of the locking piece 123 in the circumferential direction of the engaging portion 120.
  • two T-shaped engaging grooves 125 are formed between the two locking pieces 123.
  • the main body segment 121 and the two locking pieces 123 are an integral structure formed by cutting the same hollow nickel-titanium tube.
  • the material of the main body segment 121 and the two locking pieces 123 may also be metal materials commonly used for implanting medical instruments such as stainless steel or cobalt chromium alloy. It can also be understood that the two locking pieces 123 can also achieve the same effect by other machining methods, such as wire cutting, powder metallurgy, casting, and the like. It can be understood that the shape of the engaging groove 125 can be other shapes such as an L shape or a C shape, and can be designed as needed.
  • the card head 211 of the transport body 200 includes a cable segment 203 and at least two cards 215 circumferentially spaced along the cable segment 203.
  • At least two of the cards 215 are elastic and can be switched between a contracted state and an expanded state, that is, each of the cards 215 can be radially outwardly expanded (ie, expanded) under the action of a radially outward external force.
  • each card 215 can be restored to a natural state (ie, a contracted state).
  • the thickness of each of the cards 215 is uniform, and each of the cards 215 extends from the proximal end to the distal end substantially in a direction toward the longitudinal center axis of the card head 211.
  • each of the cards 215 extends from the proximal end to the distal end substantially toward the longitudinal central axis of the card head 211, meaning that each card 215 extends from the proximal end to the distal end toward the longitudinal central axis of the card head 211. At the same time, some parts of each card 215 are allowed to be slightly away from the central axis of the card head 211 than the adjacent portions thereof. As long as the radial expansion of the expansion member 300, each card 215 can be at least partially received in the card slot.
  • the implanted medical device 110 can be integrated with the transport body 200.
  • the number of the cards 215 is two, and the two cards 215 are disposed on the distal end surface of the cable segment 203.
  • Each card 215 is a T-shaped piece, and the distal end thereof is along the card head 211.
  • the circumferential length is the maximum length of the card 215 along the circumference of the card head 211. So, when the two cards 215 are in a natural state At the time of the circumferential direction of the card head 211, a substantially conical cavity is formed between the two cards 215, and the radial length of the cavity from the distal end to the proximal end is gradually increased.
  • the cable segment 203 and the two cards 215 are integrally formed by cutting and heat setting the same hollow nickel-titanium tube; it can be understood that, in other embodiments, the card 215 and The cable segments 203 can also be separately formed separately and then joined together by means of splicing, bonding or screwing. It is also understood that the card 215 can also be made of other metal materials such as cobalt chrome or the like which are preferably elastic.
  • the shape of the engaging groove may be other shapes such as a cross type and an I-shaped shape.
  • the length of the proximal end of the engaging groove in the circumferential direction of the engaging portion is greater than or equal to a card whose distal end is in the circumferential direction of the engaging portion, and each card whose shape matches the shape of the engaging groove can still be accommodated in a corresponding one of the engaging grooves under the expansion of the expanding member, so as to be The snap portion is coupled to the card head.
  • the expansion member 300 is a solid columnar structure, and the end portion is designed as a circular arc shape, which is made of a metal material with good elasticity such as nickel-titanium alloy, cobalt-chromium alloy, etc. It is disposed in the transport body 200 and is movable in the axial direction relative to the transport body 200.
  • the distal end of the expansion member 300 in the transport body 200 is axially moved relative to the transport body 200 toward the distal end of the transport body 200 and the two cards 215 are not touched, the two cards 215 are in a state of being close to each other in a natural state ( As shown by 1 in FIG.
  • the expansion member 300 when the expansion member 300 penetrates from the proximal end of its two cards 215 into the tapered cavity formed therein, the expansion member 300 applies a radial direction to the radial direction of the two cards 215.
  • the external expansion force can separate the two cards 215 from each other at the distal end (as shown by 2 in FIG. 6 ), so that they are received in the corresponding engaging slots 125 and are engaged with them ( As shown in FIG. 7; since the expansion member 300 can be kept in the position of FIG. 7, the card 215 which is close to each other can be continuously ensured to be in an expanded and separated state, thereby effectively ensuring that the card 215 is stuck in the engagement slot.
  • the secure connection of the instrument 110 to the transport body 200 is completed.
  • the expansion member 300 can also be an elongated hollow tubular structure.
  • a card 215 is snapped into a latching groove 125 under the radial expansion of the expanding member 300, when the expanding member 300 is opposite
  • the transport body 200 moves away from the instrument 110 (ie, the proximal end of the transport body 200) until the card 215 has no expansion force, the card 215 returns to the natural state, and the distal ends of the card 215 are close to each other, and are ejected from the snap slot 125.
  • the instrument 110 is separated from the transport body 200. In this way, the adoption is completely avoided.
  • the means of threaded connection to the instrument 110 and the delivery body 200 ensures proper release of the instrument 110 and reduces medical risks.
  • the expansion member 300 is required to move away from the instrument 110 to the card 215 and ejected from the card slot 125.
  • the operation process is also simple, shortening the operation time and reducing the patient's condition. Surgical risk.
  • the number of the card 215 or the latching slot 125 may also be one, as long as the card 215 is at least partially received by the card under the action of the radially outward force of the expanding member 300.
  • the implanted medical device 110 can be connected to the transport body 200 in the socket 125. It can also be understood that, in other embodiments, under the action of the radially outward force of the expansion member 300, two or more cards 215 can be accommodated in each of the engagement slots 125, as long as the implant can be implanted.
  • the medical device 110 is connected to the transport body 200. For example, two or more cards 215 are abutted against the slot wall of one of the latching slots 125 or are retained in a latching slot 125.
  • the AA section and the BB section as shown in FIG. 7 are intercepted, and in the AA section, the width of the card 215 is L1, the card is The width of the connecting portion 120 is L2; in the BB cross section, the width of the card 215 is L1 ', and the width of the engaging portion 120 is L2 ', wherein the length of L1 is greater than the length of L1 ', and L2 is greater than the length of L2 ', so
  • the expansion member 300 is held in the position shown in Fig. 7, the card 215 and the engaging portion 120 are in a state of being engaged.
  • the instrument when the expansion member 300 is held in the position shown in Figure 7, the instrument is engaged in the projection of the transport body in the cross section perpendicular to the longitudinal central axis of the transport body.
  • the portion 120 has a coincident portion C with the card head portion 211 of the transport body, and the width of the single projection coincidence portion C is L3, and the presence of the coincident portion C enables the instrument and the transport body to remain connected.
  • an interventional medical system 10a is substantially the same as the interventional medical system 10, and includes an interventional medical device 110a, a hollow delivery body 200a, and a delivery body 200a and can be transported relative to each other.
  • the body 200a is an axially movable expansion member 300a.
  • the latching portion 120a of the device 110a includes a hollow tube 123a at least proximally open, and the lumen of the hollow tube 123a constitutes a latching slot of the engaging portion 120a.
  • the inner wall of the proximal slot of the snap groove 125a is provided with at least one first flange 127a extending toward the longitudinal center snap groove axis direction of the hollow tube 123a.
  • Each of the cards 215a of the card head is inserted into the engaging groove 125a of the engaging portion under the radially outward expansion of the expanding member 300a, and The first flange 127a is engaged such that the snap portion 120a is coupled to the card 215a of the card head.
  • the hollow tube 123a and the first protruding edge 127a thereon are integrally formed. It can be understood that the hollow tube 123a and the first protruding edge 127a thereon can also be integrally fixed by other connecting methods such as bonding, screwing, and the like.
  • the engaging portion 120a can be integrally formed. For example, a whole piece of material can be processed into the engaging portion 120a by machining, such as turning, milling, drilling, grinding, etc., and other forming methods (such as powder metallurgy, casting) can be used. And so on) the engaging portion 120a is formed.
  • the first ledge when the first ledge is one, the first ledge is an annular structure that is coaxial with the longitudinal center axis of the hollow tube.
  • the conveying body 200a is substantially the same as the conveying body 200, except that the outer peripheral wall of the distal end of the disc 215a of the conveying body 200a is provided with a second projection 217a extending away from the longitudinal central axis.
  • the distal end of the card 215a of the transport body naturally closes toward the longitudinal central axis of the transport body in a natural state, thereby ensuring the card of the transport body as a whole.
  • 215a has a radial length that increases from the distal end to the proximal end.
  • the distal end of the card 215a is first inserted into the latching slot of the instrument latching portion 110a. Since the distal card 215a is close to each other, there is no latching with the instrument latching portion 110a. The effect is that the distal end of the expansion member 200a is pushed toward the engaging portion 110a of the instrument.
  • the card 215a When the distal end of the expanding member 200a touches the card 215a, the card 215a can be radially outwardly expanded, that is, the original close-up
  • the distal end of the card 215a is separated until the originally folded card 215a is expanded to a state parallel to the longitudinal central axis of the transport body 200a, and the card 215a remains in this state under the action of the expansion member 200a. Since the distal end of the card 215a of the card head is provided with the second protruding edge 217a, and the engaging groove 125 is provided with the first protruding edge 127a, the card 215a of the card head is inserted into the card of the engaging portion 110a.
  • the second protruding edge 217a is engaged with the first protruding edge 127a under the radial expansion of the expanding member 200a.
  • the first convex edge 127a is engaged with the second convex edge 217a, so that the instrument and the transport body can be firmly connected.
  • the first protruding edge 127a may be disposed at a position other than the proximal notch of the engaging groove 125a of the inner wall of the engaging groove 125a as long as it can be engaged with the second protruding edge 217a. Just pick it up.
  • the second protruding edge 217a may also be disposed at a position other than the outer wall of the outer wall of the card 215a except for the outer wall of the card 215a, as long as it can be engaged with the first protruding edge 127a. Just fine. It can also be understood that, in other embodiments, When the number of the first convex edges 127a is one, the first convex edge 127a may be a hollow annular structure whose central axis parallel to the longitudinal central axis of the hollow tube 123a is coaxial or non-coaxial with the hollow tube 123a.
  • D1 is the inner diameter of the card 215a, D2.
  • the outer diameter of the card 215a, D3 is the inner diameter of the instrument engagement portion 110a
  • D4 is the outer diameter of the instrument engagement portion 110a.
  • D1' is the inner diameter of the card 215a
  • D2' is the outer diameter of the card 215a
  • D3 which is the inner diameter of the instrument engagement portion 110a
  • D4' is the outer diameter of the instrument engagement portion 110a, referring to Fig.
  • the expansion member 300a is substantially the same as the expansion member 300, except that the thickness and size of the expansion member 300d may be different from the thickness and size of the expansion member 300 according to actual needs, and will not be described herein.
  • the number of cards 215a may also be one (as in the two cards 215a in this embodiment, one card 215a is omitted), as long as the expansion of the expansion member is under the card.
  • the distal end of the 215a can be away from the longitudinal central axis of the transport body and can extend into the snap groove of the snap portion of the instrument. Under the contact of the expansion member, the card 215a can be engaged with the snap portion, thereby implanting
  • the medical device can be connected to the transport body.
  • an interventional medical system 10c is substantially the same as the interventional medical system 10b, and includes an implanted medical device 110c having a snap portion 120c, which is hollow.
  • the transport body 200c and the extender 300c that is disposed in the transport body 200c and that is axially movable relative to the transport body 200c.
  • the conveying body 200c is substantially the same as the conveying body 200, except that in the present embodiment, a hollow protective sheath 400c is also sleeved on the outer wall of the conveying body 200c.
  • the distal end of the protective sheath 400c is recessed toward the proximal end to form a receiving groove 41c.
  • the minimum radial length of the inner cavity of the receiving groove 41c is greater than or equal to the outer diameter of the engaging portion 120c.
  • the protective sheath 400c is made of a metal material or a plastic material commonly used in interventional surgery, and the proximal end of the protective sheath 400c is attached to the outer wall of the transport body 200c.
  • One end of the protective sheath 400c may be connected to the outer wall of the transport body 200c by other connection means. No specific restrictions are made.
  • the distal end of the protective sheath 400c is more card
  • the distal end of the head is away from the proximal end of the transport body 200c, and the card 215c of the card head is partially or completely covered.
  • the protective sheath 400c can cover the proximal end of the engaging portion 120c with the insertion of the card 215c.
  • the receiving slot 41c accommodates the connection between the card engaging portion 120c and the card 215c.
  • the purpose of providing the protective sheath 400c is that, when the instrument 110c is coupled to the transport body 200c, the interventional system 10c in which the instrument 110c and the transport body 200c are connected during the implantation process is bent, and the hardness is set outside the joint.
  • the sheath 400c is protected, during the implantation process, due to the presence of the protective sheath 400c, the position where the instrument 110c is connected to the transport body 200c is less likely to be bent, so that the expansion member 300c can be evacuated from the transport body 200c. The difficulty of improving the safety and effectiveness of the operation.
  • the thickness and size of the various components of the transport body 200c may be different from the respective components of the transport body 200, depending on the actual needs.
  • the expansion member 300c is substantially the same as the expansion member 300b, except that the thickness and size of the expansion member 300c may be different from the thickness and size of the expansion member 300b according to actual needs, and will not be described herein.
  • the number of the card 215c or the engaging groove 125c may also be one. As long as the radial expansion of the expanding member 300c, the card 215c can be engaged with the engaging portion 120c to be implanted.
  • the medical device 110c can be connected to the transport body 200c. It can also be understood that, in other embodiments, under the radial constraint of the expansion member 300c, two or more cards 215c can be accommodated in each of the engagement slots 125c, as long as the implantable medical device 110c can be transported.
  • the body 200c can be connected.
  • a hollow protective sheath may be sleeved on the outer wall of the conveying body, in this case, as long as the minimum diameter of the inner cavity of the receiving groove of the protective sheath from the distal end to the proximal end is recessed.
  • the purpose of protecting the sheath can also be achieved by a radial length greater than or equal to the outer diameter of the snap portion and the distal end of the protective sheath being distal from the proximal end of the transport body.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Vascular Medicine (AREA)
  • Reproductive Health (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

L'invention concerne un système médical d'intervention (10, 10a, 10c), comprenant : un appareil (110, 110a, 110c) pourvu d'une partie de couplage femelle (120, 120a, 120c), et un corps de distribution creux (200, 200a, 200c) pourvu d'une partie de couplage mâle (211). Le système médical d'intervention (10, 10a, 10c) comprend également un élément d'expansion (300, 300a, 300c) disposé de façon mobile dans une cavité interne du corps de distribution (200, 200a, 200c). La partie de couplage mâle (211) comprend au moins une languette de couplage (215, 215a, 215c) s'étendant généralement vers un axe central longitudinal de la partie de couplage mâle (211). La languette de couplage (215, 215a, 215c) est élastique. La languette de couplage (215, 215a, 215c) de la partie de couplage mâle (211) est couplée à la partie de couplage femelle (120, 120a, 120c) tout en étant étendue sous une force radiale vers l'extérieur fournie par l'élément d'expansion (300, 300a, 300c), de telle sorte que la partie de couplage femelle (120, 120a, 120c) est reliée à la partie de couplage mâle (211). Lorsque l'élément d'expansion (300, 300a, 300c) se déplace par rapport au corps de distribution (200, 200a, 200c) de manière à arrêter d'étendre radialement la languette de couplage (215, 215a, 215c), la languette de couplage (215, 215a, 215c) se sépare de la partie de couplage femelle (120, 120a, 120c) de sorte que l'appareil (110, 110a, 110c) se sépare du corps de distribution (200, 200a, 200c). Le système médical d'intervention (10, 10a, 10c) fournit une manière plus robuste et pratique de connecter l'appareil médical implantable (110, 110a, 110c) et un dispositif de distribution (500), assurant une libération normale de l'appareil médical implantable (110, 110a, 110c) et réduisant les risques chirurgicaux.
PCT/CN2017/117287 2016-12-30 2017-12-19 Système médical d'intervention, dispositif de distribution et appareil médical implantable Ceased WO2018121362A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611265352.5 2016-12-30
CN201611265352.5A CN108261213B (zh) 2016-12-30 2016-12-30 介入医疗系统、输送装置及植入医疗器械

Publications (1)

Publication Number Publication Date
WO2018121362A1 true WO2018121362A1 (fr) 2018-07-05

Family

ID=62710287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/117287 Ceased WO2018121362A1 (fr) 2016-12-30 2017-12-19 Système médical d'intervention, dispositif de distribution et appareil médical implantable

Country Status (2)

Country Link
CN (1) CN108261213B (fr)
WO (1) WO2018121362A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110742667B (zh) * 2018-07-23 2024-09-17 苏州优友瑞医疗科技有限公司 运用可植入瓣膜治疗肺功能障碍的方法和装置
CN109303579B (zh) * 2018-11-03 2024-07-19 上海捍宇医疗科技股份有限公司 一种具有防脱装置的瓣膜夹合器
CN114305818B (zh) * 2021-12-01 2025-08-05 宁波迪创医疗科技有限公司 一种植入器械及其装卸工具组件
CN114712667B (zh) * 2022-05-09 2024-08-23 苏州恒瑞宏远医疗科技有限公司 介入器械输送系统及其组装方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853955A1 (fr) * 1991-12-12 1998-07-22 Target Therapeutics, Inc. Ensemble détachable de serpentin vasoocclusif à poussoir avec couplage par verrouillage réciproque
US20070135826A1 (en) * 2005-12-01 2007-06-14 Steve Zaver Method and apparatus for delivering an implant without bias to a left atrial appendage
US20090036877A1 (en) * 2007-08-01 2009-02-05 Boston Scientific Scimed, Inc. Spring detach joint for delivering a detachable implantable device
US20140058434A1 (en) * 2012-08-21 2014-02-27 Donald K. Jones Releasable device system
CN104799894A (zh) * 2015-05-13 2015-07-29 上海申淇医疗科技有限公司 一种释放装置
CN105142543A (zh) * 2013-03-15 2015-12-09 柯惠有限合伙公司 血管植入物的输送与分离机构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105640620A (zh) * 2015-12-31 2016-06-08 先健科技(深圳)有限公司 介入医疗器械、输送装置及介入医疗系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853955A1 (fr) * 1991-12-12 1998-07-22 Target Therapeutics, Inc. Ensemble détachable de serpentin vasoocclusif à poussoir avec couplage par verrouillage réciproque
US20070135826A1 (en) * 2005-12-01 2007-06-14 Steve Zaver Method and apparatus for delivering an implant without bias to a left atrial appendage
US20090036877A1 (en) * 2007-08-01 2009-02-05 Boston Scientific Scimed, Inc. Spring detach joint for delivering a detachable implantable device
US20140058434A1 (en) * 2012-08-21 2014-02-27 Donald K. Jones Releasable device system
CN105142543A (zh) * 2013-03-15 2015-12-09 柯惠有限合伙公司 血管植入物的输送与分离机构
CN104799894A (zh) * 2015-05-13 2015-07-29 上海申淇医疗科技有限公司 一种释放装置

Also Published As

Publication number Publication date
CN108261213A (zh) 2018-07-10
CN108261213B (zh) 2020-10-23

Similar Documents

Publication Publication Date Title
US11058852B2 (en) Interventional medical instrument, delivery apparatus, and interventional medical system
US20230128702A1 (en) Catheter insertion
CN109310846B (zh) 具有带凹槽的推动构件节段的引导延伸导管
JP6941112B2 (ja) 螺旋形状の入口ポートを有するガイドエクステンションカテーテル
US20190021861A1 (en) Anti-Lockup Thread Attachment Mechanism and Method of Use Thereof
WO2018121362A1 (fr) Système médical d'intervention, dispositif de distribution et appareil médical implantable
EP3437669B1 (fr) Système percutané
US6200315B1 (en) Left atrium ablation catheter
US10932785B2 (en) Expandable member for perforation occlusion
CN111601633A (zh) 穿中隔导丝穿刺系统
JP2019500133A (ja) 経カテーテル挿入システム
US12369895B2 (en) Guide extension catheter assemblies, systems and methods of use
US10687821B2 (en) Lung volume reduction elastic implant and lung volume reduction instrument
JP2006503671A (ja) 医療器具送達装置および使用方法
CN111374798B (zh) 介入引导装置
US10993669B2 (en) Anchoring system for a catheter delivered device
US10010344B2 (en) Self-dilating catheter introducer with obturator and method of use
CN117503445A (zh) 推送导管和经血管植入物输送装置
US11266415B2 (en) Lung volume reduction elastic implant and lung volume reduction instrument
CN205458944U (zh) 介入医疗器械、输送装置及介入医疗系统
US20240198085A1 (en) Support for assist device
TW201718046A (zh) 醫療器材的遞送裝置
US11969188B1 (en) Dilating introducer devices and methods for vascular access
Lamas et al. Non-alcoholic septal reduction in a case of hypertrophic cardiomyopathy with the use of coils
WO2024263981A1 (fr) Systèmes et procédés de pose de dispositifs médicaux implantables à l'aide d'approches d'intervention

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17886195

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17886195

Country of ref document: EP

Kind code of ref document: A1