TWI629069B - Peritoneal dialysis connection device - Google Patents

Abstract

A peritoneal dialysis connecting device is connected between an infusion tube set and a liquid exchange tube set, and includes a positioning seat and a rotating seat, the positioning seat includes a first joint for the infusion tube set to be installed a positioning hole, the rotating seat includes a set of holes and a connecting hole for the second joint of the liquid exchange tube set. The rotation seat can be rotated to a second position that makes the sleeve hole and the positioning hole are opposite to a second position, wherein the sleeve hole is offset from the positioning hole and the connection hole is opposite to the positioning hole. In the first position, a cover of the infusion tube set is rotatable relative to the first joint, and in the second position, the infusion tube set and the liquid exchange tube set are interconnected to enable the infusion tube set to Avoid changing exposure to infection when the exchange tube sets are connected to each other.

Description

Peritoneal dialysis connection device

The present invention relates to a medical device, and more particularly to a peritoneal dialysis connection device.

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

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

As shown in Fig. 1, peritoneal dialysis is to implant a permanent infusion tube group 1 in the abdominal cavity, and through a liquid exchange tube group 2, the dialysate can be poured into the abdominal cavity for a period of time, and the peritoneum is used as a semipermeable membrane for dialysis. The waste and water in the body are removed into the dialysate in the abdominal cavity and drained. The technique of changing the liquid, after the teaching and repeated practice of the medical staff, and the dialysis-related care, can independently perform the peritoneal dialysis treatment at home.

The infusion tube set 1 has an infusion tube 101 connected to the 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 set 2 has a second joint 201, an injection tube 202 connected between the second joint 201 and a dialysate bag 203, and a bypass between the injection tube 202 and a recovery liquid bag 205. Recovery tube 204. The liquid exchange tube set 2 is made The factory assembly is assembled and integrated, and the second joint 201 is sleeved with a sleeve that is disposed after being disassembled (not shown).

When the patient or caregiver is performing peritoneal dialysis at home, the cover must first be removed from the first joint 102 and then discarded. The sleeve is then detached from the second joint 201, and the first joint 102 is screwed to the second joint 201. However, during the above operation, the operator's hand, foam or dust, etc. may come into contact with the exposed first joint 102 and the second joint 201, which may cause infection.

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

Accordingly, it is an object of the present invention to provide a membrane dialysis connection device that avoids exposure to infection by equipment when performing a peritoneal dialysis operation at home.

Therefore, the peritoneal dialysis connecting device of the present invention is connected between an infusion tube set and a liquid exchange tube set, the infusion tube set has an infusion tube connected to the patient end, a first joint connected to the infusion tube, and a first joint Removably mounted to the cover of the first joint, the liquid exchange tube set has a second joint, an injection tube connected between the second joint and a dialysate bag, and a side of the injection tube and a Recovering a recovery tube between the liquid bag, the peritoneal dialysis connecting device comprising a positioning seat and a rotating seat, the positioning seat comprising a positioning hole disposed along a first axis and being mountable by the first joint, the rotating The seat is rotatably coupled to one side of the positioning seat, and forms a space together with the positioning seat, and includes a set of holes and a connecting hole disposed on one side of the sleeve hole for mounting the second joint The rotating seat can be rotated by a first position of the sleeve hole at the first axis The cover hole is offset from the positioning hole and the connection hole is located at the second position of the first axis. In the first position, the cover sleeve is sleeved on the sleeve hole, and the cover can be opposite The first joint is separated or nested, and in the second position, the second joint is sleeved or separated relative to the first joint.

The utility model has the advantages that the positioning seat and the rotating base can respectively provide the first and second joints, and the rotating seat can rotate relative to the positioning seat, and the first joint can be The disassembly and combination with the cover, and the socketing and disassembling of the first joint and the second joint can be performed in a sealed space, which can avoid contact infection and can improve the safety of home care.

100‧‧‧Infusion tube set

110‧‧‧Infusion tube

120‧‧‧First joint

130‧‧‧ Cover

140‧‧‧ outer perimeter

150‧‧‧ Groove

160‧‧‧ card to face

200‧‧‧Change tube set

210‧‧‧second joint

16‧‧‧Second Positioning Department

161‧‧‧second stop

162‧‧‧second convex

17‧‧‧ Nesting Department

20‧‧‧Rotating seat

21‧‧‧ second side wall

22‧‧‧ second ring wall

23‧‧‧Concave tube

231‧‧‧Close hole

220‧‧‧Injection tube

230‧‧‧ dialysate bag

240‧‧‧Recycling tube

250‧‧‧Recycled liquid bag

260‧‧‧ Small Trails Department

270‧‧‧Extended section

280‧‧‧ end face

10‧‧‧ Positioning Block

11‧‧‧First side wall

12‧‧‧First ring wall

13‧‧‧ Extension tube

131‧‧‧Positioning holes

14‧‧‧Flexible hook

15‧‧‧First Positioning Department

151‧‧‧ first stop

152‧‧‧First convex

232‧‧‧ wide mouth

233‧‧‧ narrow mouth

24‧‧‧ casing

241‧‧‧connection hole

242‧‧‧Narrow tube department

243‧‧‧Extension Department

244‧‧‧Circle

245‧‧‧ Convergence site

25‧‧‧Card claws

26‧‧‧Kangding Department

27‧‧‧ Included

30‧‧‧ Space

L1‧‧‧first axis

L2‧‧‧second axis

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic view of a conventional peritoneal dialysis; FIG. 2 is a perspective combination of an embodiment of the peritoneal dialysis connecting device of the present invention. 3 is an exploded perspective view of an embodiment of the peritoneal dialysis connecting device of the present invention; FIG. 4 is a partially exploded perspective view of the embodiment, illustrating a positioning seat and a rotating seat; FIG. 5 is the embodiment. A planar exploded view shows that the positioning seat can be connected by a first joint, and the rotating base can be connected by a second joint; FIG. 6 is a schematic diagram of operation of the embodiment, illustrating that the first joint and the cover are a locked state and connected to the positioning seat; Figure 7 is a schematic view of another operation of the embodiment, illustrating that the first joint is located inside the positioning seat and the cover is unscrewed relative to the first joint; Figure 8 is a section along the line VIII-VIII in Figure 7 Figure 9 is a schematic view of a spinning operation of the embodiment, illustrating that the rotating seat is rotated relative to the positioning seat, and the second joint is located inside the positioning seat and is opposite to the first joint; Figure 10 is a cross-sectional view taken along line XX of Figure 9; and Figure 11 is a schematic view of another embodiment of the embodiment, illustrating that the first connector is internal to the positioning block and is lockably coupled to the second connector.

Referring to Figures 2, 3 and 4, an embodiment of the peritoneal dialysis connection device of the present invention is coupled between an infusion set 100 and a change tube set 200.

The infusion tube set 100 has an infusion tube 110 connected to the 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 The 120 has an outer peripheral surface 140, a pair of recesses 150 recessed by the outer peripheral surface 140, and a pair of engaging surfaces 160 that intersect the outer peripheral surface 150 and are adjacent to the recesses 150.

The liquid exchange tube set 200 has a second joint 210, an injection tube 220 connected between the second joint 210 and a dialysate bag 230, and a bypass between the injection tube 220 and a recovery liquid bag 250. The tube 240 is recovered. The second joint 210 has a tubular shape and has a small diameter portion 260 connected to the small diameter portion 260 and the injection tube 220. The enlarged diameter portion 270 and the end surface 280 of the enlarged diameter portion 270 are provided opposite to the small diameter portion 260.

The peritoneal dialysis connecting device comprises a positioning seat 10 and a rotating seat 20. The rotating base 20 and the positioning base 10 can be combined to form a space 30.

The positioning base 10 includes a first side wall 11 , a first ring wall 12 extending from the periphery of the first side wall 11 , and a first axis L1 extending along the first axis L1 and protruding from the first side wall 11 toward the space 30 . An extended extension tube 13 , a plurality of elastic hooks 14 extending along the first axis L1 opposite to the extension tube 13 and extending outwardly from the first side wall 11 , and a first positioning portion 15 disposed on the first ring wall 12 . a second positioning portion 16 disposed at an angle between the first ring portion 12 and the first positioning portion 15 and a nesting portion 17 disposed at the end of the first ring wall 12 and having a loop shape. The first side wall 11 and the first ring wall 12 are formed in an inverted U shape. The extension tube 13 defines a positioning hole 131 disposed along the first axis L1 and mounted for the first joint 120. The positioning block 10 further includes a first blocking portion 151 protruding from the inner side of the first ring wall 12, and a first convex portion 152 disposed on a side of the first blocking portion 151. a second blocking portion 161 protruding from the inner side of the first ring wall 12 and a second protruding portion 162 disposed on a side of the second blocking portion 161. The first positioning portion 15 has a groove shape. The second positioning portion 16 has a groove shape and is disposed between the second blocking portion 161 and the second protruding portion 162.

The rotating base 20 is rotatably coupled to one side of the positioning base 10 and includes a second side wall 21 opposite to the first side wall 11 and a second ring extending from the circumference of the second side wall 21 a wall 22, a convex tube 23 defining a set of holes 231, and a a sleeve 24 extending along a second axis L2 and a pair of locking claws 25 extending to the second side wall 21 and extending toward the sleeve hole 231 are disposed in the second The locking portion 26 of the ring wall 22 and a fitting portion 27 provided at the end of the second ring wall 22 and having a loop shape. The cross section formed by the second side wall 21 and the second annular wall 22 has an inverted U shape. Referring to FIG. 6, the sleeve hole 231 has a tapered shape and has a wide end corresponding to the second side wall 21. 232 and a narrow end 233 opposite to the wide end 232, the sleeve 24 has a narrow tube portion 242 connected to the second side wall 21 and a second axis L2 connected thereto. The expansion portion 243 of the narrow tube portion 242 has a circumferential portion 244 and a converging portion 245 extending from the end of the circumferential portion 244 toward the second axis L2. The diameter of the second joint 210 The portion 260 can be inserted into the narrow tube portion 242, and the enlarged diameter portion 270 can be forced through the converging portion 245 to be nested in the expanding portion 243, and the converging portion 245 can be fastened to the end surface 280, and the second joint 210 is caused to be constrained relative to the rotating base 20 along the second axis L2. The connecting hole 241 is disposed on one side of the sleeve hole 231 and is mountable by the second joint 210. The clamping jaws 25 are coupled to the second side wall 21 and extend toward the wide mouth end 232. The locking portion 26 is complementary to the first positioning portion 15 and the second positioning portion 16 , and the locking portion 26 of the present embodiment protrudes from the inside of the second ring wall 22 and has a round rod shape.

As shown in FIG. 2 and FIG. 5 , when the manufacturing is completed and shipped from the factory, the positioning base 10 and the rotating base 20 are assembled in advance, and the nesting portion 17 is engaged with the fitting portion 27 . The positioning seat 10 can be rotatably connected to the rotating base 20 without easy separation. Furthermore, the liquid exchange tube set 200 is pre-installed and positioned in the rotating base 20 at the time of shipment, and is forced to pass through the converging portion 245 by the enlarged diameter portion 270 and Nested in the expansion portion 243, the second joint 210 can be rotatably engaged with the rotating base 20, and the second joint 210 and the rotating base 20 will not follow. Easy to separate. Moreover, since the second joint 210 of the liquid exchange tube set 200 is pre-installed and positioned in the rotating base 20 at the time of shipment, it can be ensured that the inner end of the second joint 210 is not contaminated by the outside.

As shown in FIG. 6, when the patient or the caregiver is to perform the home peritoneal dialysis treatment, the integrated liquid exchange tube set 200, the positioning base 10 and the rotating base 20 can be taken, and the operator will The first joint 120 connected to the patient end and the entire structure of the cover 130 locked to the first joint 120 are inserted through the positioning hole 131 of the positioning base 10 until the cover 130 is sleeved in the sleeve hole 231. And the outer ring surface of the cover 130 itself has a tapered outer ring surface and the tapered hole-shaped sleeve hole 231 cooperate with each other, and the function of the card claws 25 to be fastened to the inner end surface of the cover 130 is utilized. The cover 130 can be positioned along the first axis L1 relative to the peritoneal dialysis connection device, and the cover 130 protrudes from the outside of the sleeve hole 231 by about half of the length. At this time, the elastic hooks 14 It also strikes the outer peripheral surface 140 of the first joint 120. During the above operation, the cover 130 can easily pass over the clamping claws 25 to form a nest with respect to the sleeve hole 231.

Next, as shown in FIG. 7, the cover 130 protruding from the outside of the sleeve hole 231 can be rotated in the same position with respect to the rotation seat 20, and the cover 130 and the first cover are utilized. The joints 120 are screwed together such that the first joint 120 gradually moves away along the first axis L1 and relative to the cover 130 until the first joint 120 is completely separated from the cover 130. And the elastic hooks 14 are slidably embedded in the grooves 150, and can be buckled on the card facing surfaces 160. The positioning of the first joint 120 along the first axis L1 relative to the positioning seat 10 can be generated. With reference to FIG. 8 , in this state, the locking portion 26 is embedded in the first positioning portion 15 and is blocked by the first blocking portion 151 and the first protruding portion 152 to enable the positioning portion. The circumferential direction of the rotary seat 20 is temporarily positioned, and the sleeve hole 231 corresponds to the first axis L1 and the positioning hole 131 to position the rotary base 20 in the first position.

Continuing, as shown in FIG. 9 and FIG. 10, the operator rotates the rotating base 20 and rotates the second joint 210 together with the positioning base 10 to the second position, and the sleeve hole 231 is offset from the positioning hole 131. The second axis L2 of the connecting hole 241 is coincident with the first axis L1. At this time, the locking portion 26 is locked to 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 seat 10 and the rotating base 20 to be rotated to generate temporary positioning. In the process of rotating the rotating base 20, the locking portion 26 can be nested in the first and second positioning portions 15, 16 respectively over the first and second convex portions 152, 162.

As shown in FIG. 11, after the second joint 210 is locked and connected to the first joint 120, 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 FIG. 9), and the operator performs the operations of FIGS. 10 and 9 in sequence. And separating the first joint 120 from the second joint 210, and then rotating the rotating base 20 from the second position to the first position, as shown in FIG. 8 and FIG. The cover 130 is locked back to the first joint 120 and the like, and the peritoneal dialysis connecting device can be detached from the first joint 120 and the cover 130.

Therefore, with the peritoneal dialysis connecting device of the present invention, the separation and locking 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 disposed in the sealed space 30, and the problem that the first joint 120 and the second joint 210 are in contact with each other during disassembly and assembly can be avoided. Moreover, the cover 130 can be used continuously for a plurality of times, and the new cover 130 is inspected and replaced by the medical staff when the next visit is made.

In summary, the peritoneal dialysis connecting device of the present invention has a simple overall structure and is easy to manufacture, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

Claims (6)

A peritoneal dialysis connecting device is connected between an infusion tube set and a liquid exchange tube set, the infusion tube set has an infusion tube connected to the patient end, a first joint connected to the infusion tube, and a detachably a cover mounted on the first joint, the liquid exchange tube set has a second joint, an injection tube connected between the second joint and a dialysate bag, and a bypass tube and a recovery liquid bag a recovery tube, the peritoneal dialysis connecting device comprising: a positioning seat comprising a positioning hole disposed along a first axis and being mountable by the first joint; and a rotating seat rotatably coupled to the Positioning a side of the seat, and forming a space together with the positioning seat, and including a set of holes and a connecting hole disposed on one side of the sleeve hole and being mountable by the second joint, the rotating seat can be made The sleeve hole is located at the first position of the first axis, and is rotated to a position such that the sleeve hole is offset from the positioning hole and the connection hole is located at the second position of the first axis. a cover sleeve is disposed on the sleeve hole, and the cover is opposite to the first Separating head or socket, in the second position, the second connector is movable relative to the first connector or socket separation. The peritoneal dialysis connection device of claim 1, wherein the positioning seat further comprises a first side wall, a first ring wall extending from the periphery of the first side wall, and a first ring wall disposed on the first ring wall a first positioning portion, a second positioning portion disposed on the first ring wall and spaced apart from the first positioning portion, and a nesting portion disposed at the end of the first ring wall and having a loop shape, the first Side wall The cross section formed by the first ring wall has an inverted U shape, and the rotating base further includes a second side wall opposite to the first side wall, and a second ring wall extending from the periphery of the second side wall, a locking portion disposed on the second ring wall and a sleeve portion disposed at the end of the second ring wall, wherein the second side wall and the second ring wall have an 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 to the first positioning portion, and the rotating seat is In the second position, the locking portion is locked to the second positioning portion, and the fitting portion is complementary to the nesting portion, and the fitting portion is rotatably nested in the nesting portion. The peritoneal dialysis connecting device according to claim 2, wherein the first joint of the infusion tube set has an outer peripheral surface, a pair of recesses recessed by the outer peripheral surface, and a pair intersecting the outer peripheral surface and adjacent to a locating surface of the grooves, the locating block further comprising an extension tube extending along the first axis and protruding from the first side wall toward the space, and most of the extending along the first axis opposite to the extension tube An elastic hook extending outwardly from the first side wall, wherein the elastic hooks are slidably engaged in the grooves and can be snapped on the card abutting surfaces when the rotating seat is in the first position, and The first joint is caused to slide and slide relative to the positioning seat along the first axis to generate a limit. The peritoneal dialysis connection device according to claim 3, wherein the sleeve of the rotation seat has a tapered hole shape 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 base further includes a pair connected to The second side wall and the locking claw extending toward the wide end, the rotating seat is in the first position, and when the cover is sleeved in the sleeve hole, the clamping claws are fastened to the sealing An end surface of the cover, and the cover is positioned in the sleeve hole along the first axis, and a positioning is generated with respect to the rotation seat. The peritoneal dialysis connection device according to claim 2, wherein the second joint of the liquid exchange tube set has a tubular shape and has a small diameter portion and an expanded diameter connected between the small diameter portion and the injection tube. And an end surface opposite to the small diameter portion disposed on the enlarged diameter portion, the rotary base further includes a sleeve defining the connecting hole and extending along a second axis, the sleeve having a connection a narrow tube portion of the second side wall and a tube expansion portion connected to the narrow tube portion along the second axis, the tube expansion portion having a circumferential portion and a portion extending from the end of the circumferential portion toward the second axis a beam portion, the small diameter portion of the second joint may be disposed in the narrow tube portion, the enlarged diameter portion may be forced to pass through the converging portion and nested in the expanded portion, and the constricted portion may be buckled Abutting the end surface, and causing the second joint to position along the second axis relative to the rotating base. The peritoneal dialysis connection device according to claim 2, wherein the positioning seat further includes a first blocking portion protruding from the inner side of the first annular wall, and a first portion disposed on the side of the first blocking portion a convex portion, a second blocking portion protruding from the inner side of the first annular wall, and a second convex portion disposed on a side of the second blocking portion in a circumferential direction, the first positioning portion is in a groove shape, and And disposed between the first blocking portion and the first convex portion, the second positioning portion is in a groove shape, and is disposed between the second blocking portion and the second convex portion, and the locking seat is locked a portion protruding from the second ring The inner side of the wall is in the shape of a round rod. When the rotating base is in the first position, the locking portion can be nested in the first positioning portion over the first convex portion. When the rotating base is in the second position, The locking portion may be nested in the second positioning portion beyond the second convex portion.