Vascular intervention puncture positioning device

Abstract

The utility model relates to the technical field of medical auxiliary instruments, and discloses a vascular intervention puncture positioning device which is used for a puncture sheathing canal, the puncture sheathing canal comprises a connector, the connector is provided with a fixing block with a fixing hole, the positioning device comprises an attachment piece, a connecting piece, a fixing piece and a fastening piece, the attachment piece is suitable for being attached to a limb of a human body, and the connecting piece is suitable for being connected with the fixing piece. The connecting piece extends in the direction away from the human skin, the fixing piece is arranged on the connecting piece and comprises a fixing groove and a positioning hole, the fixing groove is provided with an inlet and outlet allowing the fixing block to enter and exit from the fixing groove, and the positioning hole penetrates through the fixing groove; and the fastener is suitable for penetrating through the aligned positioning hole and fixing hole. According to the puncture sheath tube, the attachment piece suitable for being attached to the limbs of the human body is arranged, and the fixing piece is arranged on the connecting piece which is not in contact with the skin of the human body, so that when the connector of the puncture sheath tube is connected to the fixing piece through the fixing block to achieve fixation of the connector, the connector is located at the position not in contact with the skin of the human body; therefore, the joint can be effectively prevented from compressing human limbs.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, and in particular to a vascular interventional puncture positioning device. Background Art

[0002] The contents of this section merely provide background information related to the present invention and may not constitute prior art.

[0003] In current vascular interventional surgeries, a puncture sheath is usually inserted into the human blood vessels through the distal blood vessels (such as the radial artery) to facilitate the subsequent delivery of other precision medical devices such as interventional catheters into the human blood vessels for treatment.

[0004] Among them, common puncture sheaths generally include a tube body and a connector located at one end of the tube body. When the puncture sheath is successfully punctured, the portion of the tube body away from the connector is located in the human blood vessel, while the portion of the tube body near the connector and the connector are exposed to the outside of the body. Furthermore, after the puncture sheath is successfully punctured, the connector of the puncture sheath exposed to the outside of the body usually needs to be fixed to prevent displacement of the connector when other precision medical devices are subsequently delivered into the human blood vessel through the puncture sheath.

[0005] At present, a known way to fix the joint is to use a transparent dressing to stick the tube body at the puncture position, and at the same time, use a transparent dressing to stick the joint directly on the human skin. Another known way to fix the joint is to use a fixing hole on the joint. For example, the patent document with the application number "CN202123178227X" and the name "A femoral artery and vein puncture sheath fixer for vascular surgery" discloses a fixer that uses the fixing hole of the joint to fix the joint. In this fixer, a fixing belt suitable for being tied to a limb of the human body is provided with a connecting structure composed of a nut and a screw. In actual use, the fixing belt is tied to the limb of the human body, and the screw is connected to the nut after passing through the fixing hole on the joint, so as to firmly press and fix the joint on the skin of the human body.

[0006] However, as for the two methods of fixing the connector listed above, the fixed connector will directly contact the human skin and compress the human limbs, which will not only cause discomfort to the human body, but also if the connector compresses the blood vessels of the human body undergoing vascular intervention surgery, it may also affect the smooth progress of the vascular intervention surgery. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a vascular intervention puncture positioning device, so as to achieve fixation of the connector of the puncture sheath without the connector contacting the human skin.

[0008] The purpose of the utility model is achieved through the following technical solutions:

[0009] The utility model discloses a vascular intervention puncture positioning device, which is used for a puncture sheath tube. The puncture sheath tube comprises a joint, and a fixing block with a fixing hole is provided on the joint;

[0010] The positioning device comprises:

[0011] an attachment member adapted to be attached to a limb of a human body;

[0012] A connecting member connected to the attachment member; the connecting member extends in a direction away from human skin;

[0013] A fixing member is provided on the connecting member; the fixing member includes a fixing slot and a positioning hole, the fixing slot is provided with an inlet and outlet for the fixing block to enter and exit the fixing slot, and the positioning hole passes through the fixing slot; wherein, when the fixing block enters the fixing slot, the positioning hole is aligned with the fixing hole;

[0014] A fastener is adapted to pass through the aligned positioning hole and the fixing hole to fix the fixing block in the fixing groove.

[0015] Furthermore, the attachment includes:

[0016] a base to which the connector is connected;

[0017] The adhesive portion is arranged on the base.

[0018] Furthermore, the adhesive portion is provided on the bottom surface of the base, and a protective film is provided on a side of the adhesive portion facing away from the base;

[0019] The protective film has an easy-to-tear portion protruding from the outer edge of the adhesive portion.

[0020] Furthermore, the fixing member includes a fixing portion and two plate-shaped positioning portions, the fixing portion is connected to the connecting member, and the two positioning portions are oppositely arranged on the fixing portion;

[0021] The fixing groove is formed between the two positioning parts, and the positioning hole passes through the two positioning parts at the same time.

[0022] Furthermore, the fastener is a locking bolt.

[0023] Furthermore, the length of the connecting piece is adjustable.

[0024] Furthermore, the connecting piece includes:

[0025] A guide portion connected to the attachment; an interior of the guide portion defines an active cavity;

[0026] a rotating portion, movably connected to the guide portion so as to enable the rotating portion to rotate around its own axis;

[0027] The movable part is coaxially arranged with the rotating part; the top end of the movable part is connected to the fixed part, the bottom end of the movable part passes through the rotating part and extends into the movable cavity, the movable part and the rotating part are threadedly connected, and the movable part located in the movable cavity slides with the movable cavity.

[0028] Furthermore, a rotating ring is provided on the outer wall of the guide portion near the top end thereof, a rotating groove adapted to the rotating ring is provided on the rotating portion, and the rotating ring is rotatably arranged in the rotating groove.

[0029] Furthermore, a slider is provided at the bottom end of the movable part, and an inner wall of the movable cavity is provided with a slide groove adapted to the slider and extending along the axial direction of the movable part, and the slider is slidably arranged in the slide groove.

[0030] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0031] The vascular interventional puncture positioning device disclosed by the present invention is provided with an attachment piece suitable for attaching to a human limb, and a fixing piece is provided on a connecting piece that does not contact the human skin. When the connector of the puncture sheath is connected to the fixing piece by means of a fixing block to achieve fixation of the connector, the connector will be in a position that does not contact the human skin, thereby effectively avoiding the connector from compressing the human limb. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of a puncture sheath known in the prior art;

[0033] Figure 2 A schematic structural diagram of a blood vessel puncture positioning device provided in an embodiment of the present utility model;

[0034] Figure 3 for Figure 2 A cross-sectional view of a vascular puncture positioning device is shown;

[0035] Figure 4 for Figure 3 A magnified view of the structure at point A;

[0036] Figure 5 A schematic structural diagram of a fixing member provided in an embodiment of the present utility model;

[0037] Figure 6 A schematic structural diagram of a connector provided in an embodiment of the present utility model;

[0038] Figure 7 for Figure 6 Structural exploded view of the connector shown in;

[0039] Figure 8 for Figure 3 A magnified view of the structure at B in the middle;

[0040] Figure 9 This is a schematic diagram of applying the blood vessel puncture positioning device disclosed in an embodiment of the present utility model to a joint fixed at a certain tilt angle.

[0041] Icons: 10-attachment, 11-base, 12-adhesive part, 13-protective film, 131-easy-to-tear part, 20-connecting part, 21-guide part, 22-rotating part, 23-movable part, 24-movable cavity, 25-rotating ring, 26-rotating groove, 27-slider, 28-slide groove, 30-fixing part, 31-fixing groove, 32-positioning hole, 33-fixing part, 34-positioning part, 40-fastener, 100-puncture sheath, 101-tube body, 102-connector, 103-fixing block, 104-fixing hole. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific implementation methods. The same figure marks in the accompanying drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Compared to the embodiments shown in the drawings, feasible embodiments within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0044] Example 1

[0045] like Figure 1 As shown, it shows the structure commonly possessed by the puncture sheath tube 100 known in the prior art. Figure 1 In the illustrated puncture sheath 100, the puncture sheath 100 may include a tube body 101 and a connector 102 disposed at one end of the tube body 101, and the connector 102 is provided with a fixing block 103 having a fixing hole 104. The fixing block 103 may be in the shape of a hanging ear and integrally formed on the connector 102.

[0046] On this basis, combined with the description of the utility model in the background technology, it can be seen that for the connector 102 of the puncture sheath 100 that has successfully been punctured, the two currently known methods of fixing the connector 102 will cause the connector 102 to directly contact the human skin and compress the human limbs after the connector 102 is fixed, which will not only cause discomfort to the human body, but also if the connector 102 compresses the blood vessels of the human body undergoing vascular intervention surgery, it may also affect the smooth progress of the vascular intervention surgery.

[0047] To this end, Example 1 of the present invention discloses a vascular interventional puncture positioning device for a puncture sheath 100, specifically a device capable of securing a connector 102 of the puncture sheath 100 to a human limb without contacting the human skin. For ease of description, this device will be collectively referred to as a "positioning device" below.

[0048] like Figure 2 As shown in FIG, it shows the general structure of the exemplary positioning device disclosed in this embodiment. Figure 2 In the positioning device shown, the positioning device may include an attachment member 10 , a connecting member 20 , a fixing member 30 and a fastener 40 .

[0049] In this embodiment, the attachment 10 is suitable for being attached to a human limb, and in particular, can be attached to a human limb undergoing a vascular interventional procedure. The attachment 10 can be, but is not limited to, attached to a human limb in the following manner.

[0050] Combine Figures 2 to 4 As shown, the attachment 10 may include a base 11 and an adhesive portion 12. The base 11 is used to provide sufficient structural strength to provide adequate support when the positioning device is in use, and to facilitate the connection of the connector 20, which will be described in detail below, to the attachment 10. For example, the base 11 may be made of medical plastic.

[0051] The adhesive portion 12 is disposed on the base 11, for example, on the bottom surface of the base 11, and is suitable for being attached to a human limb. The adhesive portion 12 may be a double-sided adhesive tape. Furthermore, if the adhesive portion 12 is disposed on the bottom surface of the base 11, a protective film 13, such as release paper, may be disposed on the side of the adhesive portion 12 facing away from the base 11 to protect the adhesive portion 12 when not in use.

[0052] Thus, when the attachment 10 needs to be attached to a limb of the human body, it is only necessary to tear off the protective film 13 on the adhesive portion 12 and stick the adhesive portion 12 to a suitable position on the limb of the human body, which is simple and convenient to operate. Figure 4The easily tearable portion 131 shown protrudes from the outer edge of the adhesive portion 12. Of course, in other embodiments of the present invention, the structure of the attachment 10 is not limited to this. For example, a method of providing fixing straps (not shown in the figure) on opposite sides of the base 11 can also be adopted, so that the base 11 can be tied to a limb of the human body with the help of the fixing straps.

[0053] In this embodiment, the connecting member 20 is connected to the attachment 10. Specifically, the connecting member 20 can be connected to the base 11 of the attachment 10, such as the top surface of the base 11. In addition, the connecting member 20 extends in a direction away from the human skin. In order to simplify the structure of the connecting member 20 as much as possible, the connecting member 20 can be as follows: Figure 2 The rod-shaped member shown extends in a direction away from the human skin.

[0054] In this embodiment, the fixing member 30 is provided on the connecting member 20 , and the fixing member 30 is detachably connected to the fixing block 103 on the connector 102 of the puncture sheath 100 .

[0055] Specifically, combined Figure 3 and Figure 5 As shown, the fixing member 30 may include a fixing slot 31 and a positioning hole 32. The fixing slot 31 has an inlet and outlet for the fixing block 103 on the connector 102 to enter and exit the fixing slot 31. The positioning hole 32 extends through the fixing slot 31. When the fixing block 103 on the connector 102 enters the fixing slot 31 through the inlet and outlet of the fixing slot 31, the positioning hole 32 aligns with the fixing hole 104 on the fixing block 103. The fastener 40 is adapted to pass through the aligned positioning hole 32 and fixing hole 104 to secure the fixing block 103 in the fixing slot 31. For example, the fastener 40 may be a conventional component such as a locking pin or a locking bolt.

[0056] Based on the above arrangement, during the process of vascular intervention, when the puncture sheath 100 is successfully punctured and the connector 102 of the puncture sheath 100 needs to be fixed, the attachment 10 is first attached to the appropriate position on the human limb. Specifically, after tearing off the protective film 13 on the adhesive part 12, the adhesive part 12 is attached to the appropriate position on the human limb. Subsequently, the connector 102 of the puncture sheath 100 is operated so that the fixing block 103 on the connector 102 is fixed. Figure 9 In the manner shown, the fastener 40 enters the fixing groove 31 through the inlet and outlet of the fixing groove 31 until the fixing hole 104 on the fixing block 103 is aligned with the positioning hole 32 passing through the fixing groove 31. After that, the fastener 40 can be passed through the aligned fixing hole 104 and the positioning hole 32 to fix the fixing block 103 in the fixing groove 31 by using the fastener 40, thereby achieving a reliable connection between the fixing member 30 and the fixing block 103.

[0057] It can be understood that, since the fixing member 30 is arranged on the connecting member 20 extending in the direction away from the human skin, when the connector 102 of the puncture sheath 100 is connected to the fixing member 30 by means of the fixing block 103 to achieve the fixation of the connector 102, the connector 102 will be in a position not in contact with the human skin, thereby effectively avoiding the connector 102 from compressing the human limbs.

[0058] Combine Figure 3 or Figure 5 As shown, the fixing member 30 may further include a fixing portion 33 and two plate-shaped (particularly thin plate-shaped) positioning portions 34. The fixing portion 33 is connected to the connector 20. For example, the connector 20 may be connected to the bottom surface of the fixing portion 33. In this case, the entire fixing member 30 is located at the top of the connector 20. The two positioning portions 34 may be disposed opposite each other on the fixing portion 33. For example, if the connector 20 is connected to the bottom surface of the fixing portion 33, the two positioning portions 34 may be disposed opposite each other on the top surface of the fixing portion 33. Furthermore, the aforementioned fixing groove 31 is formed between the two positioning portions 34, and the positioning hole 32 extends through both positioning portions 34.

[0059] In this way, combined with the above, when it is necessary to connect the fixing block 103 on the connector 102 to the fixing member 30, it is only necessary to insert the fixing block 103 into the fixing groove 31 formed between the two positioning portions 34, so that the fixing hole 104 on the fixing block 103 is aligned with the positioning hole 32 passing through the two positioning portions 34, and the fastener 40 can be used to pass through the aligned fixing hole 104 and the positioning hole 32 to reliably fix the fixing block 103 between the two positioning portions 34.

[0060] It is understood that the fixing member 30 configured in the above manner facilitates the fixing block 103 to enter the fixing groove 31 formed between the two positioning portions 34 from different directions. Furthermore, the two positioning portions 34 are configured in a plate shape, so that the two plate-shaped positioning portions 34 have a certain degree of deformation capability, which facilitates the insertion of fixing blocks 103 of different thicknesses between the two positioning portions 34. In this case, the aforementioned fastener 40 can be a locking bolt, so that when the two positioning portions 34 and the fixing block 103 are fixed, a certain pre-tightening force can be applied to the two positioning portions 34 and the fixing block 103 by the locking bolt, thereby improving the fixing effect of the fixing block 103.

[0061] Example 2

[0062] Based on Example 1, considering that in different vascular interventional surgeries, there may be a need to keep the connector 102 of the puncture sheath 100 at different inclination angles, so that different types of precision medical devices can be more smoothly delivered into the human body's blood vessels through the connector 102 with a certain inclination angle.

[0063] Therefore, in order to make the positioning device disclosed in the present invention applicable to fixing the joint 102 at various tilt angles, the second embodiment of the present invention further improves the structure of the connecting member 20 .

[0064] Specifically, this embodiment further defines that the length of the connecting member 20 is adjustable. For example, the connecting member 20 can be a telescopic rod with adjustable length.

[0065] It is understood that by setting the length of the connecting member 20 to be adjustable, for the joint 102 at different tilt angles, the length of the connecting member 20 can be adjusted based on the distance between the fixing hole 104 on the fixing block 103 and the human skin, so that when the positioning device is attached to the human limb through the attachment 10, the fixing block 103 on the joint 102 at the predetermined tilt angle can enter the fixing groove 31 of the fixing member 30, and the fixing hole 104 on the fixing block 103 is exactly aligned with the positioning hole 32 that passes through the fixing groove 31. In other words, if the length of the connecting member 20 is adjustable and it is necessary to fix the joint 102 at different tilt angles, the length of the connecting member 20 can be adjusted to the appropriate length before the subsequent operation of attaching the attachment 10 to the human limb and connecting the fixing block 103 to the fixing member 30 is performed.

[0066] Furthermore, the length of the connecting member 20 can be adjusted in the following manner but is not limited thereto.

[0067] Combine Figure 3 、 Figure 6 as well as Figure 7 As shown in the figure, the connecting member 20 may include a guide portion 21, a rotating portion 22 and a movable portion 23. The guide portion 21 may be connected to the attachment 10, for example, the bottom end of the guide portion 21 may be connected to the top surface of the base 11. In actual implementation, the guide portion 21 and the base 11 may be manufactured in an integrally formed manner. In addition, the interior of the guide portion 21 defines the following: Figure 4 The active cavity 24 is shown.

[0068] The rotating portion 22 is movably connected to the guide portion 21 so that the rotating portion 22 can rotate around its own axis. The rotating portion 22 can be rotatably arranged at the top end of the guide portion 21. For example, referring to Figure 7 and Figure 8 As shown, a rotating ring 25 can be provided on the outer wall of the guide portion 21 near its top end, and a rotating groove 26 adapted to the rotating ring 25 can be provided on the rotating portion 22, and the rotating ring 25 can be rotatably provided in the rotating groove 26 to achieve rotational cooperation between the rotating portion 22 and the guide portion 21.

[0069] The movable portion 23 is coaxially arranged with the rotating portion 22. The bottom end of the movable portion 23 passes through the rotating portion 22 and extends into the movable cavity 24. The top end of the movable portion 23 is connected to the fixing member 30, such as the bottom surface of the fixing portion 33. In addition, the movable portion 23 passing through the rotating portion 22 is threadedly connected to the rotating portion 22. For example, the movable portion 23 can be as follows Figure 7 The outer wall of the component shown is provided with an external thread, and the rotating portion 22 is provided with an internal threaded hole that matches the external thread on the outer wall of the movable portion 23, thereby realizing a threaded connection between the movable portion 23 and the rotating portion 22. The movable portion 23 located in the movable cavity 24 slides with the movable cavity 24, so that the movable portion 23 is guided and limited by the movable cavity 24.

[0070] Based on the above arrangement, when the length of the connecting member 20 needs to be adjusted, it is only necessary to rotate the rotating portion 22 to move the movable portion 23 along its own axial direction to change the length of the entire connecting member 20 . The operation is simple and convenient.

[0071] Among them, reference Figure 4 and Figure 7 A slider 27 can be provided at the bottom end of the movable part 23, and a slide groove 28 can be provided on the inner wall of the movable cavity 24 to adapt to the slider 27 and extend along the axial direction of the movable part 23. The slider 27 can be slidably provided in the slide groove 28 to achieve sliding cooperation between the movable part 23 and the movable cavity 24.

[0072] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vascular interventional puncture positioning device for a puncture sheath, wherein the puncture sheath comprises a connector, wherein the connector is provided with a fixing block having a fixing hole, wherein: The positioning device comprises: an attachment member adapted to be attached to a limb of a human body; A connecting member connected to the attachment member; the connecting member extends in a direction away from human skin; A fixing member is provided on the connecting member; the fixing member includes a fixing slot and a positioning hole, the fixing slot is provided with an inlet and outlet for the fixing block to enter and exit the fixing slot, and the positioning hole passes through the fixing slot; wherein, when the fixing block enters the fixing slot, the positioning hole is aligned with the fixing hole; A fastener is adapted to pass through the aligned positioning hole and the fixing hole to fix the fixing block in the fixing groove.

2. The vascular intervention puncture positioning device according to claim 1, characterized in that: Accessories include: a base to which the connector is connected; The adhesive portion is arranged on the base.

3. The vascular intervention puncture positioning device according to claim 2, characterized in that: The adhesive portion is provided on the bottom surface of the base, and a protective film is provided on the side of the adhesive portion facing away from the base; The protective film has an easy-to-tear portion protruding from the outer edge of the adhesive portion.

4. The vascular intervention puncture positioning device according to claim 1, characterized in that: The fixing member includes a fixing portion and two plate-shaped positioning portions, the fixing portion is connected to the connecting member, and the two positioning portions are oppositely arranged on the fixing portion; The fixing groove is formed between the two positioning parts, and the positioning hole passes through the two positioning parts at the same time.

5. The vascular intervention puncture positioning device according to claim 4, characterized in that: The fastener is a locking bolt.

6. The vascular intervention puncture positioning device according to claim 1, characterized in that: The length of the connecting piece is adjustable.

7. The vascular intervention puncture positioning device according to claim 6, characterized in that: The connecting piece includes: A guide portion connected to the attachment; an interior of the guide portion defines an active cavity; a rotating portion, movably connected to the guide portion so as to enable the rotating portion to rotate around its own axis; The movable part is coaxially arranged with the rotating part; the top end of the movable part is connected to the fixed part, the bottom end of the movable part passes through the rotating part and extends into the movable cavity, the movable part and the rotating part are threadedly connected, and the movable part located in the movable cavity slides with the movable cavity.

8. The vascular intervention puncture positioning device according to claim 7, characterized in that: The outer wall of the guide portion close to the top end thereof is provided with a rotating ring, the rotating portion is provided with a rotating groove adapted to the rotating ring, and the rotating ring is rotatably arranged in the rotating groove.

9. The vascular intervention puncture positioning device according to claim 7, characterized in that: A slider is provided at the bottom end of the movable part, and a sliding groove is provided on the inner wall of the movable cavity, which is adapted to the slider and extends along the axial direction of the movable part, and the slider is slidably arranged in the sliding groove.

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