TW201825130A - Connection device of peritoneal dialysis characterized by avoiding the possibility of generating contact infection when the infusion tube set and the liquid replacement tube set are connected to each other - Google Patents

Abstract

Provided is a connection device of peritoneal dialysis, which is connected between an infusion tube set and a liquid replacement tube set and includes a positioning seat and a rotatable seat. The positioning seat includes a positioning hole providing the first joint of the infusion tube set with installation. The rotatable seat includes a sleeved hole and a connecting hole providing the second joint of the liquid replacement tube set with installation. The rotatable seat can be rotated from the first position that enables the sleeved hole to be opposite to the positioning hole to the second position that enables the sleeve hole to stagger the positioning hole and enables the connecting hole to be opposite to the positioning hole. At the first position, a sealing cover of the infusion tube set rotates relative to the first joint. At the second position, the infusion tube set can connect to the liquid replacement tube set, so as to avoid the possibility of generating contact infection when the infusion tube set and the liquid replacement tube set are connected to each other.

Description

Peritoneal dialysis connection device

The invention relates to a medical device, in particular to a peritoneal dialysis connection device.

Generally known as "dialysis", there are two ways, one is hemodialysis, and the other is peritoneal dialysis.

Peritoneal dialysis (PD) is a method of injecting a dialysis solution into the abdominal cavity and using peritoneal filtration in the body to remove metabolic waste and excess water from the blood. It is commonly known as "belly washing" and is one of the treatments for renal failure other than hemodialysis.

As shown in Figure 1, peritoneal dialysis is a permanent infusion tube group 1 implanted in the abdominal cavity, and the dialysate can be poured into the abdominal cavity for a period of time through a tube exchange group 2. The body waste and water are removed into the dialysate in the abdominal cavity, and then drained out. The technique of fluid replacement can be independently performed at home after the teaching and repeated practice of medical staff, and learning about dialysis-related care.

The infusion tube group 1 has an infusion tube 101 connected to a patient end, a first joint 102 connected to the infusion tube 101, and a cover (not shown) detachably screwed to the first joint 102. The liquid exchange tube group 2 has a second joint 201, an injection pipe 202 connected between the second joint 201 and a dialysate bag 203, and a side connection between the injection pipe 202 and a recovery liquid bag 205. Recovering tube 204. The liquid exchange tube group 2 is assembled and connected into a whole when it is manufactured, and the second joint 201 is sleeved with a bundle sleeve (not shown) which is then discarded.

When a patient or a caregiver performs peritoneal dialysis at home, the cover must be removed from the first connector 102 and then discarded. The bundle sleeve is removed from the second joint 201, and the first joint 102 and the second joint 201 are screw-locked. However, during the above operation, the operator's hand, mouth spray, or falling dust, etc., may come into contact with the exposed first connector 102 and the second connector 201, which may cause infection.

Therefore, how to improve the care safety of peritoneal dialysis at home is an urgent problem.

Therefore, an object of the present invention is to provide a membrane dialysis connection device which can prevent equipment from contacting the infection when performing peritoneal dialysis operation at home.

Therefore, the peritoneal dialysis connection device of the present invention is connected between an infusion tube group and an infusion tube group. The infusion tube group has an infusion tube connected to a patient end, a first joint connected to the infusion tube, and a Removably mounted on the cover of the first joint, the fluid exchange tube set has a second joint, an injection pipe connected between the second joint and a dialysate bag, and a side connected to the injection pipe and a The recovery tube between the recovery fluid bags, the peritoneal dialysis connection device includes a positioning seat and a rotating seat, the positioning seat includes a positioning hole provided along a first axis and available for installation of the first joint, and the rotation The seat is rotatably aligned with one side of the positioning seat, and forms a space with the positioning seat, and includes a set of combining holes and a connecting hole provided on one side of the fitting hole and capable of installing the second joint. The rotary seat can be rotated from a first position where the fitting hole is located on the first axis, to a second position where the fitting hole is staggered from the positioning hole and the connection hole is located at a second position on the first axis. When in the first position, the cover is sleeved on the fitting hole, and The closure may be separated with respect to the first connector or socket, in the second position, the second connector is movable relative to the first connector or socket separation.

The effect of the invention lies in that the positioning base and the rotating base can be used for connecting the first and second joints respectively, and the rotating base can rotate relative to the positioning base, so that the first joint can be made. Disassembly and combination with the cover, and sleeve connection and disassembly of the first joint and the second joint can be performed in a closed space, which can avoid contact infection and improve the safety of home care.

Referring to FIG. 2, FIG. 3 and FIG. 4, an embodiment of the peritoneal dialysis connection device according to the present invention is connected between an infusion tube group 100 and an infusion tube group 200.

The infusion tube set 100 has an infusion tube 110 connected to a patient end, a first joint 120 connected to the infusion tube 110, and a cover 130 detachably screwed to the first joint 120. The first joint 120 has an outer peripheral surface 140, a pair of grooves 150 recessed from the outer peripheral surface 140, and a pair of latching surfaces 160 that intersect the outer peripheral surface 150 and are adjacent to the grooves 150.

The liquid exchange tube set 200 has a second joint 210, an injection pipe 220 connected between the second joint 210 and a dialysate bag 230, and a side pipe connected between the injection pipe 220 and a recovery liquid bag 250. Recovering tube 240. The second joint 210 has a stepped tube shape, and has a small diameter portion 260, an enlarged diameter portion 270 connected between the small diameter portion 260 and the injection pipe 220, and an opposite to the small diameter portion 260. The end surface 280 of the enlarged diameter portion 270.

The peritoneal dialysis connection device includes a positioning base 10 and a rotating base 20. The rotating seat 20 and the positioning seat 10 are combined to form a space 30 together.

The positioning base 10 includes a first side wall 11, a first ring wall 12 formed by turning a peripheral edge of the first side wall 11, and an extension along a first axis L1 and protruding from the first side wall 11 toward the space 30. An extending extension tube 13, an elastic hook 14 mostly opposite the extension tube 13 along the first axis L1 and extending outward from the first side wall 11, and a first positioning portion 15 provided on the first annular wall 12. A second positioning portion 16 disposed on the first annular wall 12 and angularly spaced from the first positioning portion 15, and a nested portion 17 disposed on the end of the first annular wall 12 in a ring shape. The cross-section formed by the first side wall 11 and the first annular wall 12 has an inverted U-shape, and the extension tube 13 can define a positioning hole 131 disposed along the first axis L1 and available for installation of the first joint 120. With reference to FIG. 8, the positioning base 10 further includes a first blocking portion 151 protruding from the inside of the first ring wall 12, a first protruding portion 152 protruding from the first blocking portion 151 in a circumferential direction, A second stopper portion 161 protruding from the inside of the first ring wall 12 and a second convex portion 162 disposed on the side of the second stopper portion 161 in a circumferential direction. The first positioning portion 15 is groove-shaped. It is disposed between the first blocking portion 151 and the first convex portion 152. The second positioning portion 16 is groove-shaped, and is disposed between the second blocking portion 161 and the second convex portion 162.

The rotating seat 20 is rotatably engaged with one side of the positioning seat 10, and includes a second side wall 21 opposite to the first side wall 11, and a second ring formed by turning and extending the periphery of the second side wall 21. A wall 22, a convex tube 23 which can define a set of combining holes 231, a sleeve 24 which can define a connection hole 241 and extending along a second axis L2, a pair of connecting to the second side wall 21 and facing the An engaging claw 25 extending in the engaging hole 231, a locking portion 26 provided on the second ring wall 22, and a ring-shaped engaging portion 27 provided on an end of the second ring wall 22. The cross section formed by the second side wall 21 and the second ring wall 22 has an inverted U-shape. According to FIG. 6, the fitting hole 231 is tapered and has a wide mouth end corresponding to the second side wall 21. 232 and a narrow mouth end 233 opposite to the wide mouth end 232, cooperating with FIG. 5, the sleeve 24 has a narrow pipe portion 242 connected to the second side wall 21 and a connection to the second wall L2 along the second axis L2. The enlarged tube portion 243 of the narrow tube portion 242 has an annular peripheral portion 244 and a converging portion 245 extending from the end of the annular peripheral portion 244 toward the second axis L2, and the small diameter of the second joint 210 The portion 260 can pass through the narrow tube portion 242, the enlarged diameter portion 270 can be forced to pass through the constriction portion 245 to be nested in the tube expansion portion 243, and the constriction portion 245 can be buckled to the end surface 280, and the second joint 210 is restricted relative to the rotating seat 20 along the second axis L2. The connecting hole 241 is disposed on one side of the fitting hole 231 and can be installed by the second joint 210. The clamping claws 25 are connected to the second side wall 21 and extend into the wide-mouth end 232. The locking portion 26 is complementary to the first positioning portion 15 and the second positioning portion 16. The locking portion 26 of this embodiment is convexly arranged on the inner side of the second ring wall 22 and has a round rod shape.

As shown in FIG. 2 and FIG. 5, the positioning base 10 and the rotation base 20 are pre-assembled into one body when the manufacturing is completed and the product is shipped, and the nesting part 17 and the fitting part 27 are used to engage. The positioning base 10 can be rotatably connected to the rotating base 20 without being easily separated. In addition, the liquid exchange tube set 200 is also pre-installed and positioned in the rotary seat 20 before leaving the factory, and the diameter expansion portion 270 is used to forcefully pass through the constriction portion 245 and be nested in the tube expansion portion 243. Then, the second joint 210 can be rotatably engaged with the rotary base 20, and the second joint 210 and the rotary base 20 cannot be easily separated. And because the second joint 210 of the liquid exchange tube group 200 is pre-installed and positioned in the rotary seat 20 when it leaves the factory, it can be ensured that the inner end of the second joint 210 will not be polluted by the outside world.

As shown in FIG. 6 again, when the patient or caregiver is to perform home peritoneal dialysis treatment, the assembled liquid exchange tube group 200, the positioning seat 10 and the rotating seat 20 as a whole can be used, and the operator will The overall structure of the first joint 120 connected to the patient end and the cover 130 locked to the first joint 120 penetrates through the positioning hole 131 of the positioning base 10 until the cover 130 is sleeved in the fitting hole 231. And use the interaction of the tapered outer ring surface of the cover 130 itself and the tapered hole-shaped fitting hole 231 with each other, as well as the role of the locking claws 25 to buckle to the inner end surface of the cover 130, The cover 130 can be positioned relative to the peritoneal dialysis connection device along the first axis L1. About half of the length of the cover 130 protrudes from the outside of the fitting hole 131. At this time, the elastic hooks 14 It also springs against the outer peripheral surface 140 of the first joint 120. During the above-mentioned operation, the cover 130 can easily pass over the engaging claws 25 to be inserted into the engaging hole 231.

Next, as shown in FIG. 7, the cover 130 protruding from the outside of the fitting hole 131 is operated, so that the cover 130 can rotate in place with respect to the rotation seat 20. The cover 130 and the first The joints 120 are screwed together, so that the first joint 120 gradually moves away from the cover 130 along the first axis L1 until the first joint 120 is completely separated from the cover 130. The elastic hooks 14 can be slidably engaged in the grooves 150 and can be snapped on the card abutting surfaces 160, so that the first joint 120 can be opposed to each other along the first axis L1. Positioning can occur after the positioning base 10 is displaced. And referring to FIG. 8, in this state, the locking portion 26 is embedded in the first positioning portion 15 and is blocked by the first stop portion 151 and the first convex portion 152, so that the positioning seat can be made. 10 and the rotation base 20 are temporarily positioned in the circumferential direction, and the fitting hole 231 corresponds to the first axis L1 and the positioning hole 131 so that the rotation base 20 is located at the first position.

Continuing, as shown in FIGS. 9 and 10, the operator rotates the rotary base 20 and the second joint 210 together with the positioning base 10 to a second position, and staggers the fitting hole 231 and the positioning hole 131. The second axis L2 of the connection hole 241 coincides with the first axis L1. At this time, the locking portion 26 is locked on the second positioning portion 16 and receives the second blocking portion 161 and the second convex portion. The blocking of 162 can cause the positioning base 10 and the rotation base 20 to rotate temporarily after being rotated. In the above-mentioned process of rotating the rotary seat 20, the locking portion 26 may pass over the first and second convex portions 152 and 162 and may be nested in the first and second positioning portions 15 and 16, respectively.

As shown in FIG. 11, after the second joint 210 and the first joint 120 are locked and connected, the operator can perform a liquid exchange operation.

After the liquid exchange operation, the operator rotates the second joint 210 to separate the first joint 120 from the second joint 210 (as shown in the state of FIG. 9), and the operator performs the actions of FIG. 10 and FIG. 9 in sequence. And separate the first joint 120 from the second joint 210, and then turn the rotary seat 20 from the second position to the first position as shown in FIGS. 8 and 7, and then as shown in FIG. 6, The cover 130 is locked back to the first joint 120 and other operation actions, and then the peritoneal dialysis connection device can be detached from the first joint 120 and the cover 130 again.

Therefore, using the peritoneal dialysis connection device of the present invention, the separation and connection of the first joint 120 and the cover 130, and the separation and connection of the first joint 120 and the second joint 210 are all in the peritoneum. The dialysis connection device is performed in a closed space 30, which can avoid the problem of contact infection during the disassembly and assembly of the first joint 120 and the second joint 210. And the cover 130 can be used continuously for many times, and when the next visit, the medical staff will check and replace the new cover 130.

In summary, the peritoneal dialysis connection device of the present invention has a simple overall structure and is easy to manufacture and assemble, so it can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

100‧‧‧ Infusion tube set

110‧‧‧ infusion tube

120‧‧‧first connector

130‧‧‧Cap

140‧‧‧outer surface

150‧‧‧ groove

160‧‧‧ card arrival

200‧‧‧ liquid exchange tube set

210‧‧‧Second connector

220‧‧‧ injection tube

230‧‧‧ dialysate bag

240‧‧‧ Recovery tube

250‧‧‧Recycling liquid bag

260‧‧‧ Trail

270‧‧‧Expansion Department

280‧‧‧face

10‧‧‧ Positioning Block

11‧‧‧ the first side wall

12‧‧‧ the first ring wall

13‧‧‧Extension tube

131‧‧‧ positioning hole

14‧‧‧Flexible hook

15‧‧‧ the first positioning department

151‧‧‧First stop

152‧‧‧The first convex part

16‧‧‧Second positioning section

161‧‧‧Second stop

162‧‧‧Second convex part

17‧‧‧Nesting Department

20‧‧‧Swivel seat

21‧‧‧Second sidewall

22‧‧‧Second Ring Wall

23‧‧‧ convex tube

231‧‧‧Tap hole

232‧‧‧ Wide mouth

233‧‧‧Narrow mouth end

24‧‧‧ Casing

241‧‧‧Connecting hole

242‧‧‧Narrow tube section

243‧‧‧Expansion Department

244‧‧‧Circular Department

245‧‧‧Closing position

25‧‧‧Claw

26‧‧‧ Calding Department

27‧‧‧ Fitting Department

30‧‧‧ space

L1‧‧‧ first axis

L2‧‧‧Second axis

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, wherein: FIG. 1 is a schematic diagram of a conventional peritoneal dialysis; FIG. 2 is a three-dimensional combination of an embodiment of the peritoneal dialysis connection device of the present invention Fig. 3 is an exploded perspective view of an embodiment of the peritoneal dialysis connection device of the present invention; Fig. 4 is a partial exploded perspective view of the embodiment, illustrating a positioning base and a rotating base; Fig. 5 is a perspective view of the embodiment A plan exploded view showing that the positioning base can be connected by a first joint, and the rotary base can be connected by a second joint; FIG. 6 is an operation schematic diagram of the embodiment, illustrating that the first joint is connected to a cover. It is in a locked state and connected to the positioning base; FIG. 7 is another operation schematic diagram of this embodiment, illustrating that the first joint is located inside the positioning base and the cover is unscrewed relative to the first joint; A sectional view of the line Ⅷ-Ⅷ in 7; FIG. 9 is a schematic view of a rotation operation of the embodiment, illustrating that the rotation seat is rotated relative to the positioning seat, and the second joint is located at the positioning seat Internally The first joint is opposite; FIG. 10 is a cross-sectional view taken along line X-X in FIG. 9; and FIG. 11 is another schematic diagram of the operation of the embodiment, illustrating that the first joint is inside the positioning base and can be opposed The second joint is locked and connected.

Claims (6)

A peritoneal dialysis connection device is connected between an infusion tube group and an infusion tube group. The infusion tube group has an infusion tube connected to a patient end, a first joint connected to the infusion tube, and a detachably A cap installed on the first joint, the liquid exchange tube set has a second joint, an injection pipe connected between the second joint and a dialysate bag, and a side connected to the injection pipe and a recovery liquid bag The recovery tube therebetween, the peritoneal dialysis connection device comprises: a positioning seat, including a positioning hole provided along a first axis and available for installation of the first joint; and a rotary seat rotatably mated with the positioning seat One side of the positioning base forms a space with the positioning base, and includes a set of combining holes and a connecting hole provided on the side of the fitting holes and available for installation of the second joint. The fitting hole is located at a first position on the first axis, and is rotated to a position where the fitting hole is staggered from the positioning hole and the connecting hole is located at a second position on the first axis. In the first position, the sealing A cover is sleeved on the fitting hole, and the cover can be opposite to the first hole. Or separation of the joint socket, in the second position, the second connector is movable relative to the first connector or socket separation. The peritoneal dialysis connection device according to claim 1, wherein the positioning base further includes a first side wall, a first ring wall formed by turning a peripheral edge of the first side wall, and a first ring wall provided on the first ring wall. A first positioning portion, a second positioning portion provided on the first annular wall and spaced from the first positioning portion, and a ring-shaped nesting portion provided on an end of the first annular wall, the first positioning portion The cross section formed by the side wall and the first ring wall is inverted U-shaped, and the rotary seat further includes a second side wall opposite to the first side wall, and a second ring wall formed by turning and extending from the periphery of the second side wall. A locking portion provided on the second ring wall and a ring-shaped sleeve portion provided on the end of the second ring wall; the cross section formed by the second side wall and the second ring wall is inverted U Shape, the locking portion is complementary to the first positioning portion and the second positioning portion. When the rotating seat is in the first position, the locking portion is locked on the first positioning portion and the rotating seat. When in the second position, the locking portion is locked on the second positioning portion, and the fitting portion and the nesting portion are concave and convex complementary. The fitting part is rotatably nested in the nesting part. The peritoneal dialysis connection device according to claim 2, wherein the first joint of the infusion tube set has an outer peripheral surface, a pair of grooves recessed from the outer peripheral surface, and a pair of intersecting on the outer peripheral surface and adjacent to The positioning surfaces of the grooves, the positioning base further includes an extension pipe extending along the first axis and protruding from the first side wall toward the space, and most of the extension pipes are opposite to the extension pipe along the first axis and are formed by the positioning pipe. Elastic hooks extending outwardly from the first side wall, when the rotary seat is in the first position, the elastic hooks are slidably engaged in the grooves and can be snapped onto the card abutting surfaces, and The first joint is caused to slide relative to the positioning seat along the first axis and a limit is generated after sliding. The peritoneal dialysis connection device according to claim 3, wherein the sleeve hole of the rotation seat is tapered and has a wide mouth end corresponding to the second side wall and a narrow mouth opposite to the wide mouth end. End, the rotating seat further includes a pair of clamping claws connected to the second side wall and extending toward the wide-mouth end, the rotating seat is in the first position, and the cover is sleeved in the fitting hole At this time, the locking claws are buckled against the end surface of the cover, and the cover is located in the fitting hole along the first axis, and is positioned relative to the rotating seat. The peritoneal dialysis connection device according to claim 2, wherein the second joint of the liquid exchange tube group has a stepped tube shape and has a small diameter portion and an enlarged diameter connected between the small diameter portion and the injection tube. The rotating seat further includes a sleeve opposite to the small diameter portion and disposed on an end surface of the enlarged diameter portion. The rotating seat further includes a sleeve that can define the connection hole and extends along a second axis. The sleeve has a connection to The narrow pipe portion of the second side wall and a pipe expanding portion connected to the narrow pipe portion along the second axis, the pipe expanding portion has a circumferential portion and a receiving portion extending from the end of the circumferential portion toward the second axis. Bundled part, the small diameter part of the second joint can pass through the narrow tube part, the enlarged diameter part can be forced through the bundled part and nested in the expanded part, and the bundled part can be buckled Against the end surface, and causing the second joint to generate a limit relative to the rotating seat along the second axis. The peritoneal dialysis connection device according to claim 2, wherein the positioning base further includes a first stop portion protrudingly disposed on an inner side of the first ring wall, and a first stop portion disposed on a side of the first stop portion in a circumferential direction. A convex portion, a second stop portion protrudingly disposed on the inner side of the first ring wall, and a second convex portion provided on the side of the second stop portion in the circumferential direction, the first positioning portion is groove-shaped, and The second positioning portion is provided between the first stop portion and the first convex portion, and the second positioning portion is formed in a groove shape. The second positioning portion is provided between the second stop portion and the second convex portion. The portion is convexly arranged inside the second ring wall and is in the shape of a round rod. When the rotary seat is in the first position, the locking portion can be nested in the first positioning portion beyond the first convex portion. When the movable seat is in the second position, the locking portion can be nested in the second positioning portion beyond the second convex portion.