阅读说明：本技术 包括连接器的导管装置 (Catheter device comprising a connector ) 是由 M·戈恩 G·麦格雷戈 于 2020-03-06 设计创作，主要内容包括：在一些实施例中,导管装置可包括导管,导管包括近端和远端。导管装置可进一步包括联接到导管的近端的连接器。连接器可包括具有构造成接纳导管的远端的凹入部的底座,并且可包括构造成联接到底座以将导管夹紧于凹入部内的铰接部分。(In some embodiments, the catheter device may comprise a catheter comprising a proximal end and a distal end. The catheter device may further comprise a connector coupled to the proximal end of the catheter. The connector may include a base having a recess configured to receive the distal end of the catheter, and may include an articulating portion configured to couple to the base to clamp the catheter within the recess.)

1. An apparatus, comprising:

a catheter comprising a proximal end and a distal end and defining a lumen extending from the proximal end to the distal end, the catheter comprising a plurality of openings extending from the lumen through a wall of the catheter; and

a connector coupled to the proximal end of the catheter and including a clamp configured to close over a portion of the catheter to compress the lumen to prevent fluid flow.

2. The apparatus of claim 1, wherein the clamp includes a base portion including a recess configured to receive the portion of the conduit.

3. The apparatus of claim 2, further comprising:

a hinge portion coupled to the base portion by a hinge, the hinge portion including a support defining an additional recess; and

wherein the base portion further comprises a clamp configured to engage the additional recess to secure the hinge portion to the base portion in a closed state.

4. The device of claim 3, further comprising a post extending from the articulating portion and configured to extend into the recess to compress the lumen when the articulating portion is closed over the catheter.

5. The device of claim 1, further comprising a needle coupled to the distal end of the catheter.

6. The device of claim 1, wherein the connector further comprises a fluid port configured to receive a tip of a syringe, the connector defining a fluid passageway extending from the fluid port to the lumen of the catheter.

7. The device of claim 1, wherein the plurality of openings are closer to the proximal end than to the distal end of the catheter.

8. The device of claim 1, further comprising a needle comprising a connecting element configured to couple the needle to the distal end of the catheter.

9. The device of claim 8, wherein the needle includes a tip, a cutting blade, and a body portion extending between the tip and the cutting blade.

10. The device of claim 9, wherein the body portion is curved to form an arcuate shape.

11. The device of claim 10, wherein the cutting blade is substantially planar.

12. The device of claim 11, wherein the cutting blade includes first and second sharp edges extending outwardly from and away from the body portion.

13. The apparatus of claim 12, wherein:

the first sharp edge is sharp on a first side of the cutting blade but not a second side of the cutting blade;

the second sharp edge is sharp on the second side of the cutting blade but not the first side of the cutting blade.

14. The apparatus of claim 13, wherein:

the first sharp edge is coupled to a first blunt edge, the first blunt edge proximate the first sharp edge;

the second sharp edge is coupled to a second blunt edge that is proximate to the second sharp edge.

15. The device of claim 14, wherein the connecting element extends proximate the first and second blunt edges.

16. The apparatus of claim 15, wherein:

the needle comprises a minimum width proximal to the tip;

the minimum width is included in the body portion proximate the tip and distal the first and second sharp edges;

the minimum width is not adjacent to either of the first or second sharp edges;

the minimum width is measured orthogonal to a plane intersecting the tip, the cutting blade, and the body portion;

the plane intersects a void extending between the tip and the body portion.

17. The device of claim 16, wherein the first and second sharp edges taper outwardly away from the body portion as the first and second sharp edges approach and extend away from the tip.

18. The device of claim 17, wherein the tip, the cutting blade, the body portion, and the connecting element are all integral with one another.

19. The device of claim 18, wherein at least a portion of the connecting element is included within a distal portion of the lumen.

20. The apparatus of claim 19, wherein:

the distal portion of the lumen extends around the portion of the connecting element;

the additional portion of the lumen proximal to the expanded distal portion of the lumen is relaxed and unstretched.

Technical Field

The present disclosure relates generally to catheter devices, and more particularly to catheter devices including connectors and methods thereof. In some embodiments, the catheter device may be configured to treat skin and oral abscesses.

Background

Surgical drain tubes (drains) are used in a wide variety of different surgical procedures, for example, to drain fluid from a surgical area. Some examples where such drains are used may include orthopedic surgery, breast surgery (to prevent accumulation of blood, lymph, or both), orthopedic surgery, chest drainage, infected cysts, pancreatic surgery (to drain secretions), biliary surgery, thyroid surgery, neurosurgery (to remedy the risk of intracranial pressure), urinary catheters, nasogastric tubes, and other procedures.

One type of such surgical drain may be used on patients with skin and oral abscesses or collections of pus, hematomas, seromas, or any other fluid requiring drainage. For example, abscesses can form at any site in the body, from epidermal skin (subcutaneous) abscesses to deep abscesses located in muscles, organs, or body cavities. Treatment of such abscesses typically involves draining accumulated fluid (such as pus) to address infection or abscess causes and promote recovery. One type of such surgical drain may require the patient or caregiver to adjust the drain to reopen the blocked drainage path to facilitate drainage.

The manner in which the accumulated fluid is drained may depend on the size and location of the abscess. For subcutaneous abscesses, treatment typically involves: using a scalpel to make an incision through the skin layer into the abscess cavity; pressing fluid (e.g., pus) out of the abscess; and optionally using a hemostat to explore the wound and dissect the stiffened pus sac or local area. In some examples, a dressing (such as a gauze strip) may be inserted into the abscess cavity to prevent skin closure and re-accumulation of fluid in the abscess, and to achieve continuous drainage. In other examples, a drainage catheter may be inserted through the incision and into the abscess to facilitate drainage and optionally irrigation of the abscess cavity.

The means by which abscesses are drained in the mouth typically include: using a scalpel to cut through the mucosa to the abscess cavity; pressing fluid (e.g., pus) out of the abscess; and optionally using a hemostat to explore the wound and dissect the stiffened pus sac or local area. In most instances, a small drainage tube is sutured into the cavity of the abscess cavity to prevent mucosal closure and re-accumulation of fluid in the abscess, and to achieve continuous drainage.

Disclosure of Invention

In some embodiments, the drainage device can include a catheter including a proximal end and a distal end. The drainage device may further comprise a connector coupled to the proximal end of the catheter. The connector may include a body portion including a port sized to receive a tip of a syringe and including a lumen (lumen) extending from the port to a proximal end of the catheter. The body portion may further comprise an articulation element configured to secure the distal end of the catheter against the body portion and to clamp the distal end of the catheter closed.

In some embodiments, the drainage device may include a catheter having a proximal end and a distal end, and may include a connector coupled to the proximal end of the catheter and including an articulation fastener. The hinged fastener may be configured to close over a portion of the catheter near the distal end to form a closed loop (loop), and to clamp the distal end closed to prevent fluid flow through the distal end.

In some embodiments, the catheter device may comprise a catheter comprising a proximal end and a distal end. The catheter device may further comprise a connector coupled to the proximal end of the catheter. The connector may include a base having a recess configured to receive the distal end of the catheter, and may include a hinge portion configured to couple to the base to clamp the catheter within the recess.

In other embodiments, a catheter device may include a catheter including a proximal end and a distal end and defining a lumen extending from the proximal end to the distal end. The catheter may include a plurality of openings extending from the lumen through a wall of the catheter. The catheter device may further comprise a connector coupled to the proximal end of the catheter. The connector may include a clamp configured to close over a portion of the conduit to compress the lumen to prevent fluid flow.

In still other embodiments, the catheter device may comprise a catheter comprising a proximal end and a distal end. The catheter may define a lumen extending from the proximal end to the distal end. The catheter device may further comprise a connector comprising a catheter engagement element coupled to the proximal end. The connector may include a fluid port and may define a fluid passageway extending from the fluid port through the catheter engaging element to the lumen of the catheter. The connector may further include a base and a hinge element configured to couple to the base to clamp a portion of the conduit to compress the lumen to prevent fluid flow.

Drawings

Fig. 1 depicts an illustration of a catheter device including a connector, according to certain embodiments of the present disclosure.

Fig. 2 depicts a portion of the catheter device of fig. 1 including a connector coupled to a syringe according to certain embodiments of the present disclosure.

Fig. 3 depicts a side view of a connector according to certain embodiments of the present disclosure.

Fig. 4 depicts a top view of a needle of the catheter device of fig. 1, according to certain embodiments of the present disclosure.

Fig. 5 depicts a portion of a catheter including helically arranged openings, according to certain embodiments of the present disclosure.

Fig. 6 depicts an illustration of an embodiment of a catheter device configured to drain abscesses, in accordance with certain embodiments of the present disclosure.

Fig. 7 depicts a flow diagram of a method of producing a catheter device, according to certain embodiments of the present disclosure.

In the discussion that follows, the same reference numbers are used in various embodiments to indicate the same or similar elements.

Detailed Description

Embodiments of the apparatus and method are described below.

Fig. 1 depicts an illustration of a catheter device 100 including a connector 106, according to certain embodiments of the present disclosure. The catheter device 100 may include a needle 102, a catheter 104 coupled to the needle 102, and a connector 106 coupled to the catheter 104. In the illustrated example, the catheter 104 may define a lumen extending from a proximal end coupled to the needle 102 to a distal end coupled to the connector 106. The connector 106 may be releasably coupled to the syringe 108.

The needle 102 may include a tip or tip 110 configured to pierce a surface or layers, such as skin layers. The needle 102 may further include a body portion 112 extending between the tip 110 and a cutting blade 114. The body portion 112 may be curved according to a selected radius. The cutting blade 114 may be substantially triangular in shape and may include a cutting edge along at least one side. In some embodiments, the tip or tip 110 may pierce the surface and follow a curved path defined by the curvature of the needle 102 through the subsurface layers. The cutting blade 114 may trace the tip or tip 110 along a curved path, and the cutting edge of the cutting blade 114 may be operable to widen the opening created by the tip or tip 110. Also, the trailing edge of the cutting blade 114 may be blunt or rounded such that reversing the direction of force applied to the needle 102 may cause the blunt or rounded trailing edge to dissect a stiffened pus sac or local area.

The catheter 104 may comprise a long, flexible tube defining a lumen. The conduit 104 may be configured to allow fluid received from the connector 106 to flow through the lumen. Also, the conduit 104 may include a plurality of openings or holes, indicated generally at 116, which may be arranged in a spiral or helical pattern along the length of a portion of the conduit 104. An opening or aperture 116 extends from a lumen located within the conduit 104 through the outer surface of the conduit 104 to allow fluid to flow from the lumen through the opening or aperture 116.

The connector 106 may include a catheter-engaging element 118, the catheter-engaging element 118 configured to fit within the lumen of the catheter 104 and configured to secure the catheter 104 to the connector 106. The connector 106 may further include a base portion including a clamp 120, the clamp 120 configured to engage the hinge portion 122 and secure the hinge portion 122. The base portion may further include a recess or groove 124 sized to receive the distal end of the catheter 104. The recess or groove 124 may further include an opening or additional recess 126 sized to receive a corresponding post 128 of the hinge portion 122. The connector 106 may also include a port 130, the port 130 including an opening sized to receive a tip 132 of the syringe 108. Connector 106 may define a fluid pathway extending from fluid port 130 through the connector and through catheter engaging element 118 to the lumen of catheter 104.

The syringe 108 may further include a barrel portion 134, the barrel portion 134 coupled to the tip 132 and defining an enclosure. Barrel portion 134 may further include a flange 136. The syringe 108 may further include a plunger 138, the plunger 138 sized to fit within the enclosure and configured to push fluid from the enclosure through the opening in the tip 132, through the connector 106, and into the lumen of the conduit 104. Other embodiments are also possible.

In some embodiments, the needle 102 is inserted and pulled through one or more layers by the physician, thereby dragging the catheter 104 through the layers. The physician may place the distal end of catheter 104 into recess 124 and may close articulating portion 122, thereby clamping articulating portion 122 against the base portion and securing post 128 within recess 126 to close and seal the lumen of catheter 104 between post 128 of articulating portion 120 and the opening or additional recess 128 of recess 124. By clamping down on the catheter 104, the lumen of the catheter 104 is closed to prevent fluid flow through the connector 106.

Fig. 2 depicts a portion 200 of the catheter device 100 of fig. 1 including the connector 106 coupled to the syringe 108 according to certain embodiments of the present disclosure. Connector 106 may include a catheter engaging element 118, catheter engaging element 118 including a lumen configured to engage the lumen of catheter 104. In this example, the catheter engagement element 118 may comprise a polygonal shape including a neck portion 202 and a head portion 204. The distal end of the catheter 104 may be stretched over the head portion 204 and tightened around the neck portion 202, thereby securing the catheter 104 to the connector 106.

The connector 106 may further include a base portion 206, the base portion 206 defining a plurality of features configured to engage the hinge portion 122 and secure the conduit 104. The base portion 206 may include a latch or clamp feature 120, the latch or clamp feature 120 configured to engage a corresponding feature or recess 208 formed beneath a strengthening rib 210 located on the hinge portion 122. The base portion 206 further includes a groove or recess 124, the groove or recess 124 including an opening or notch 126 sized to receive the post 128 of the hinge portion 122. In operation, portions of the conduit 104 may be placed into the groove or recess 124 and the hinge portion 122 may be closed, thereby latching the hinge portion to the base portion 206 via the latch or clamp feature 120 and the recess 208. Also, the post 128 may be pushed into the notch 126, thereby pinching the conduit 104 and compressing the lumen of the conduit 104 to seal the conduit 104 from fluid flow.

Fig. 3 depicts a side view 300 of the connector 106, according to certain embodiments of the present disclosure. The connector 106 includes a port 130 to receive the tip of a syringe. Moreover, the connector 106 includes a base 206 coupled to the hinged portion 122 by a hinge 306. Base 206 includes clip 120, clip 120 including extension 304, extension 304 configured to engage recess 208 located in stiffener 210. Moreover, the hinge portion 122 includes a post 128 configured to fit within the opening or recess 126.

As shown in the illustrated example, the hinged portion 122 opens and closes along a path indicated by dashed arrow 308. The extension 304 of the clip 120 may snap-fit into the recess 208. Also, a post 128 may extend into the recess 124 and into the opening or notch 126 to clamp the conduit 104 within the recess 124. Other embodiments are also possible.

Fig. 4 depicts a top view 400 of the needle 102 of the catheter device 100 of fig. 1, according to certain embodiments of the present disclosure. The needle 102 includes a tip 110, a body portion 112, and a cutting blade 114. In this example, the cutting blade 114 may be substantially planar, while the tip 110 and the body portion 112 may define a curved portion. The cutting blade 114 may extend outwardly from the body portion 112 forming wings or edges 404 and 406, and the wings or edges 404 and 406 may be sharp to facilitate widening of the opening formed through the body 112 and tip 110 of the needle 102. In this example, one side of each of edge 404 and edge 406 is sharp. Trailing edge 408 and trailing edge 410 may be blunt or rounded. For example, the practitioner may manipulate the needle 102 to dissect a sac located within an abscess using the trailing edge.

The conduit coupling element 402 may extend from the end of the needle 102 adjacent to the trailing edge 408 and the trailing edge 410. The element 402 may include an arrow-shaped or other shaped feature 402 that may be pushed into the lumen of the catheter 104 such that the catheter 104 expands around the arrow head of the element 402 and narrows to secure the catheter 104 to the needle 102.

Fig. 5 depicts a portion 500 of a conduit 104 including helically arranged openings 116, according to certain embodiments of the present disclosure. As shown, an opening 116 is provided in the catheter 104, the opening 116 extending from the lumen through the wall of the catheter 104 to provide a drainage aperture through which saline, antibiotics, other fluids, or any combination thereof may be delivered. In an example, the opening 116 may be positioned within the abscess by a practitioner, and the practitioner may press a plunger of a syringe coupled to the connector 106 to deliver fluid to the abscess via the lumen of the catheter 106 and through the opening 116.

In some embodiments, the arrangement of the openings 116 may be helical, which allows for a substantially uniform distribution of fluid from the conduit 104 even if the conduit 104 is twisted. Other embodiments are also possible.

Fig. 6 depicts a diagram 600 of an embodiment of the catheter device 100 of fig. 1 configured to drain abscesses, in accordance with certain embodiments of the present disclosure. The catheter device 106 includes a base 206, the base 206 including a clamp 120, the clamp 120 configured to be coupled to the articulating portion 122 to clamp the distal end of the catheter 104 after the catheter 104 has been drawn into position within the abscess 606 by the needle 102. The catheter device 106 is coupled to the proximal end of the catheter 104 and is configured to provide a fluid conduit from a port 130 sized to receive the tip of a syringe to the lumen of the catheter 104. The base 206 and the articulating portion 122 may cooperate to clamp the distal end of the catheter 104.

In this example, the catheter 610 may extend through a first incision through the epidermis 602, and optionally through one or more layers of the dermis 604, through the abscess 606, and outward from a second incision. The connector 106 includes a fluid port 130 to receive a sterile irrigation fluid, such as saline, medication, sterile water, other fluid, or any combination thereof. The catheter 104 includes a lumen coupled to the irrigation port 130 and to an opening 116 positioned within the abscess 606 to deliver irrigation fluid into the abscess 606.

In the illustrated embodiment of fig. 6, the catheter 104 and the connector 106 cooperate to facilitate introduction of irrigation fluid via the irrigation port 130 and the opening 116. The connector 106 secures both ends of the catheter 104 to provide a secure loop that prevents the catheter 104 from pulling out of the abscess. Moreover, the connector 106 prevents fluid flow through the portion of the catheter 104 that is clamped within the connector 106, resulting in the possibility of pushing irrigation fluid through a port located in the connector 104 and through the opening 116 into the abscess so that fluid does not flow out of the other end of the catheter 104. Other embodiments are also possible.

Fig. 7 depicts a flow diagram of a method 700 of producing a catheter device, according to certain embodiments of the present disclosure. At 702, the method 700 may include forming a needle including a piercing tip at a first end, a cutting blade adjacent to a second end, and an attachment feature at the second end. Between the piercing tip and the cutting blade, the needle may include a curved body portion.

At 704, the method 700 may include coupling a first end of a catheter to an attachment feature. In some embodiments, the attachment features may include a narrow portion and a bulbous or wider portion. The attachment feature may be pressed into a lumen of the catheter, and the catheter may be stretched to accommodate the bulbous or wider portion and retracted around the narrow portion to couple the catheter to the needle.

At 706, the method 700 may include coupling a second end of the catheter to a relay device (hub) to form a catheter device, wherein the relay device includes clamp features and a port sized to receive a tip of a syringe to deliver fluid to the catheter. The conduit may fit over a conduit-engaging element that may couple the conduit to the connector.

At 708, the method 700 may include inserting the catheter device into the package. The package may be a cardboard package comprising an opening and a fastening feature configured to fasten the catheter device within the package. Other embodiments are also possible.

In combination with the device described above in relation to fig. 1-7, a catheter device is disclosed, comprising: a needle; a catheter including a distal end coupled to the needle and including a proximal end; and a connector coupled to the proximal end. The connector may include a port sized to receive a tip of a syringe and may include a catheter coupling element configured to couple the port to a lumen of a catheter to allow fluid to flow from the port into the lumen. The connector may further include a base including a clamp and a hinge element, the hinge element including a recess configured to engage the clamp to clamp the hinge element to the base. The base may further comprise a recess configured to receive the distal portion of the catheter, and the hinge element may clamp the distal portion of the catheter to the base. Also, the articulating portion may include a post configured to compress the conduit to block fluid flow.

It will be appreciated that the catheter devices described above may be used in a wide variety of contexts, including but not limited to orthopedic surgery, breast surgery (to prevent the accumulation of blood, lymph, or both), orthopedic surgery, chest drainage, infected cysts, pancreatic surgery (to drain secretions), biliary surgery, thyroid surgery, neurosurgery (to remedy the risk of intracranial pressure), urinary catheters, nasogastric tubes, and other procedures. In some embodiments, such as oral surgery, the size of the catheter device may be implemented in a smaller size in order to reduce irritation. In other embodiments, the transit device may be larger in order to facilitate access to the fluid ports. Other embodiments are also possible.

Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the scope of the invention.