WO2019201044A1

WO2019201044A1 - Novel balloon puncture trocar

Info

Publication number: WO2019201044A1
Application number: PCT/CN2019/078579
Authority: WO
Inventors: 王海鹰; 李韬; 梁小军; 谭庭甲
Original assignee: 微氪医疗器械南通有限公司
Priority date: 2018-04-18
Filing date: 2019-03-19
Publication date: 2019-10-24
Also published as: CN110384544B; CN110384544A

Abstract

A balloon puncture trocar, comprising a seal component (10), a balloon cannula component (20), and a retaining ring component (30). The balloon cannula component (20) comprises a cannula (200), a gas injection valve (202), a balloon cover (203), a balloon switch (205), a push rod (206), a push rod seal (207), and a balloon tube (211); the cannula (200) has a gas injection hole, a gas storage chamber (2000), and a gas groove (2001); the gas injection valve (202) and the cannula (200) are fixedly connected at the gas injection hole; the balloon cover (203) and the gas storage chamber (2000) are fixedly connected; the push rod (206) and the push rod seal (207) can move up and down in the gas storage chamber (2000); the balloon switch (205) can move back and forth in the balloon cover (203); the balloon tube (211) has a balloon (2110) and is sleeved on the cannula (200); gas in the gas storage chamber (2000) can enter into the balloon (2110) by means of the gas groove (2001); the retaining ring component (30) is sleeved on the balloon cannula component (20) in a movable or fixed connection manner. The balloon puncture trocar is simple in structure, convenient to use, has low operational difficulty, and can shorten the operating time.

Description

A new type of balloon puncture tube

Technical field

The invention relates to the technical field of a puncture device, in particular to a novel balloon puncture tube.

Background technique

At present, the balloon inflating and deflation of the balloon puncture tube on the market needs to be completed by means of a syringe, and the amount of inflation and the amount of deflation are determined by the experience of the doctor, which makes the inflation and deflation of the product balloon become Complex and uncontrollable, it will not only increase the operation time, but also increase the risk of surgery.

Therefore, there is a need for an improved balloon puncture tube.

Summary of the invention

It is an object of the present invention to provide a novel balloon puncture tube.

To achieve the above object, the present invention adopts the following contents:

A novel balloon puncture tube comprising a sealing member, a balloon sleeve member and a fixing ring member;

The balloon sleeve component includes a sleeve, a gas injection valve, a balloon cover, a balloon switch, a push rod, a push rod seal, and a balloon tube; the sleeve has a gas injection hole, a gas storage chamber, and a gas groove; The gas injection valve and the sleeve are fixedly connected at the gas injection hole; the balloon cover and the gas storage chamber are fixedly connected, the push rod and the push rod seal can move up and down in the gas storage chamber, and the balloon switch can move forward and backward in the balloon cover The balloon tube has a balloon and is sleeved on the sleeve, and the gas in the gas storage chamber can reach the balloon through the air tank;

The retaining ring member is sleeved on the balloon sleeve member, and the two are movably connected and fixedly coupled.

Further, the sealing member comprises a sealing upper cover, an upper ring block, an upper protective sheet, a sealing ring, a lower protective sheet, a lower ring block, a sealing lower cover, a choke valve and a sealing inner cover; and the lower ring block is positioned The column sequentially connects two interlaced lower protection sheets, a sealing ring, two interlaced upper protection sheets and an upper ring block, and the sealing ring is tightly sealed by a sealing upper cover and a sealing lower cover; the gas blocking valve is The sealing lower cover and the sealing inner cover are pressed and fixed.

Further, the sealing member and the balloon sleeve member are snap-fitted.

Further, the gas barrier valve has an elliptical structure as a whole.

Further, the sleeve has a sleeve body, and a gas injection hole is arranged on the upper side wall of the sleeve body, and a gas storage chamber is formed under the gas injection hole and on one side of the sleeve body, and the sleeve is arranged under the gas storage chamber. The tube body has a gas groove on its surface.

Further, the balloon tube has a balloon tube body and a balloon located at a lower portion of the tube body; the balloon tube is sleeved on the sleeve body of the sleeve.

Further, the balloon sleeve component further includes a valve switch, a balloon cover, a switch spring, and a push rod spring; the valve switch and the gas injection valve are in a movable sealing connection, and the valve switch is rotatable in the gas injection valve; One end of the push rod spring is sleeved in the air storage chamber, and one end is sleeved in the push rod; the bottom end of the push rod is sealingly connected with the push rod, and the upper end passes through the balloon switch and the balloon cover; the switch spring is located at the balloon switch and Between the balloon covers.

Further, the balloon sleeve component further includes a sealant and a fixing cord; the fixing cord secures the balloon tube and the sleeve, the sealant sealing the balloon tube and the sleeve.

Further, the fixing ring component comprises a fixed switch and a fixing ring, the fixed switch is sleeved on the fixing ring, and the fixed switch is composed of a loose ring and a tight ring, and the inner diameter of the loose ring is larger than the inner diameter of the tight ring.

The invention has the following advantages:

The novel balloon puncture tube of the invention has the advantages of simple structure, convenient use, low operation difficulty and short operation time.

DRAWINGS

The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic overall view showing the state of use of the novel balloon puncture tube of the present invention.

2 is an exploded perspective view of a novel balloon puncture tube of the present invention.

Fig. 3 is an exploded perspective view of the sealing member.

4 is a cross-sectional view of the sealing member.

Figure 5 is a perspective view of the seal ring.

Figure 6 is a cross-sectional view of the seal ring.

Fig. 7 is a perspective view showing the upper protective sheet and the lower protective sheet.

Figure 8 is a plan view of the choke valve.

Figure 9 is an exploded perspective view of the balloon sleeve component.

Figure 10 is an exploded perspective view of the retaining ring member.

Figure 11 is a schematic view showing the structure of the fixed ring member in an active state.

Figure 12 is a schematic view showing the structure of the fixing ring member in a fixed state.

Figure 13 is a schematic overall view of the initial state of the novel balloon puncture tube of the present invention.

Figure 14 is a schematic cross-sectional view showing the initial state of the balloon cannula member.

Figure 15 is a schematic cross-sectional view showing the inflation process of the balloon cannula member.

Figure 16 is a schematic cross-sectional view showing the inflated state of the balloon cannula member.

In the figure, the reference numerals are:

1-puncture tube; 10-sealing member; 100-seal upper cover; 101-upper ring block; 102-upper protection sheet; 120-second positioning hole; 121-guide piece; 103-seal ring; 130-center piece; 131-skirt; 132-positioning ring; 1321-third positioning hole; 133-positioning ring set; 1331-first positioning ring; 1332-second positioning ring; 1333-recessed portion; 1301-edge; 1302-top surface ;1303-lower surface; 104-lower protective sheet; 105-lower ring block; 1050-positioning post; 106-seal lower cover; 107-gaze valve; 108-seal inner cover; 20-balloon sleeve member; - casing; 2000-gas storage chamber; 2001-air tank; 201-valve switch; 202-injection valve; 203-balloon cover; 204-switch spring; 205-balloon switch; 206-push rod; Push rod seal; 208-push rod spring; 209-sealing glue; 210-fixed rope; 211-balloon tube; 2110-balloon; 30-fixing ring member; 300-fixed switch; 3000- loose ring; 3001- Tightly fitted ring; 301-fixed ring.

detailed description

In order to more clearly illustrate the invention, the invention will be further described in conjunction with the preferred embodiments. It should be understood by those skilled in the art that the following detailed description is intended to be illustrative and not restrictive.

Example

1 and 2 are schematic views of a novel balloon puncture tube of the present invention. The novel balloon puncture tube 1 includes a sealing member 10, a balloon sleeve member 20, and a retaining ring member 30. The sealing member 10 and the balloon sleeve member 20 are snap-fitted and can be easily attached and detached. The retaining ring member 30 is placed over the balloon sleeve member 20 to permit a tight or loose fit.

As shown in FIGS. 3 and 4, the sealing member 10 includes a sealing upper cover 100, an upper ring block 101, an upper protective sheet 102, a sealing ring 103, a lower protective sheet 104, a lower ring block 105, a sealed lower cover 106, and a choke valve 107. Sealing the inner cover 108. The lower ring block 105 sequentially connects the two interposed lower protective sheets 104, the sealing ring 103, the two interlaced upper protective sheets 102, and the upper ring block 101 through the positioning post 1050, and the sealing ring 103 is sealed with the upper cover 100 and sealed. The cover 106 is pressed tightly. The sealing upper cover 100 and the sealing lower cover 106 are fixedly connected by welding, gluing or the like.

Specifically, the sealed upper cover 100 has a first compression ring. The sealing lower cover 106 has a second pressing ring, and a positioning groove is disposed outside the second pressing ring. The upper ring block 101 has a plurality of first positioning holes. The upper protective sheet 102 and the lower protective sheet 104 have the same structure, and each has a plurality of second positioning holes 120 on the outer circumference, and the center is composed of four guide pieces 121, and the hollow portion is similar to a four-corner dart, as shown in FIG. The sealing ring 103 includes a skirt 131, a positioning ring set 133, a positioning ring 132, and a center piece 130 (shown in Figures 5 and 6) that are sequentially connected from the outside to the inside. The positioning ring set 133 includes a first positioning ring 1331, a second positioning ring 1332, and a recess 1333 between the first positioning ring 1331 and the second positioning ring 1332. During assembly, the positioning ring set 133 is coupled to the positioning groove of the sealing lower cover 106, and the skirt 131 is located in the positioning groove of the sealing lower cover 106, and the sealing ring 103 is fixed by the first pressing ring and the second pressing ring. The positioning ring 132 has a plurality of third positioning holes 1321. The center piece 130 has an upper surface 1302 and a lower surface 1303, and a plurality of ribs 1301 are evenly distributed on the upper surface 1302 and the lower surface 1303. When assembled, the two upper protective sheets 102 are staggered at the upper surface 1302 of the sealing ring 103, and the two lower protective sheets 104 are alternately superposed on the lower surface 1303 of the sealing ring 103.

The choke valve 107 is press-fixed by the seal lower cover 106 and the seal inner cover 108. The sealing lower cover 106 and the sealing inner cover 108 are fixedly connected by welding, gluing or the like. As shown in Fig. 8, the choke valve 107 has an elliptical structure as a whole. During the assembly process, the choke valve 107 is limited by the inner diameter of the inner lid 108. The wide sides of the choke valve 107 are subjected to the pressing force F1. After the force is applied, the elliptical choke valve 107 will become The circular shape, at the same time, is subjected to the pressing force F1, and the sealing performance of the choke valve 107 is better.

When the puncture needle or the endoscopic instrument is inserted into the sealing member 10, first contact with the upper protective sheet 102 without directly contacting the sealing ring 103, the sharp object of the outer surface of the puncture needle or the endoscope instrument can be effectively prevented from being inserted during the insertion process. When the puncture needle or the endoscope instrument is pulled out of the sealing member 10, it is first contacted with the lower protective sheet 104, and is not directly in contact with the sealing ring 103, and the outer surface of the puncture needle or the endoscope instrument can be effectively prevented. The barbs puncture the seal 103 during the pulling process.

As shown in FIG. 9, the balloon sleeve member 20 includes a sleeve 200, a valve switch 201, a gas injection valve 202, a balloon cover 203, a switch spring 204, a balloon switch 205, a push rod 206, a push rod seal 207, and a pusher. The rod spring 208, the sealant 209, the fixing cord 210, and the balloon tube 211.

The sleeve 200 has a sleeve body, and a gas injection hole is arranged on the upper side wall of the sleeve body, and a gas storage chamber 2000 is formed under the gas injection hole and on one side of the sleeve body, and below the gas storage chamber 2000, the sleeve body There is a gas groove 2001 on the surface. The gas injection valve 202 is fixedly and sealingly connected to the sleeve 200 at the gas injection hole, the valve switch 201 and the gas injection valve 202 are in a movable sealing connection, and the valve switch 201 can be rotated in the gas injection valve 202. The push rod spring 208 is sleeved in the air chamber 2000 at one end, and the end is sleeved in the push rod 206; the bottom end of the push rod 206 is connected to the push rod seal 207, and the upper end passes through the balloon switch 205 and the balloon cover 203; the switch spring 204 Located between the balloon switch 205 and the balloon cover 203; the balloon cover 203 and the air reservoir 2000 are fixedly connected, the push rod 206 and the push rod seal 207 can move up and down in the air storage chamber 2000, and the balloon switch 205 can be in the ball The capsule cover 203 moves forward and backward.

The balloon tube 211 has a balloon tube body and a balloon 2110 located at a lower portion of the tube body; the balloon tube 211 is sleeved on the sleeve body of the sleeve 200, and the balloon tube 211 and the sleeve 200 are fixed by the fixing rope 210, and then The balloon tube 211 and the cannula 200 are sealed with a sealant 209, and the gas inside the reservoir chamber 2000 can reach the balloon 2110 of the balloon tube 211 through the air reservoir 2001.

As shown in FIG. 10 to FIG. 12, the fixing ring member 30 is sleeved on the balloon sleeve member 20, and includes a fixed switch 300 and a fixing ring 301. The fixed switch 300 is sleeved on the fixing ring 301, and the fixed switch 300 is loosened by the ring 3000. It is composed of a tight fitting ring 3001, and the inner diameter of the loose fitting ring 3000 is larger than the inner diameter of the tight fitting ring 3001. When the loose ring 3000 is placed over the retaining ring 301, the connection relationship between the retaining ring member 30 and the balloon cannula member 20 is an active connection. When the tight fitting ring 3001 is fitted over the fixing ring 301, the connection relationship between the fixing ring member 30 and the balloon sleeve member 20 is a fixed connection.

As shown in Figs. 13 and 14, the new balloon puncture tube 1 and the balloon cannula member 20 are in an initial state. At this time, the balloon switch 205 is in an unlocked state, and the push rod 206 and the push rod seal 207 are pushed by the spring. The 208 is pushed to the top of the air reservoir 2000 to be in contact with the balloon cover 203. At the same time, the gas inside the balloon 2110 is sucked into the air reservoir 2000, and the balloon 2110 is in a contracted state.

As shown in FIG. 15, the balloon sleeve member 20 is in the inflation process. At this time, the push rod 206 is gradually pushed to the bottom end of the air storage chamber 2000 by the external force F2, and the gas inside the air storage chamber 2000 is gradually filled into the balloon 2110. The balloon 2110 is gradually inflated and the balloon switch 205 is in an unlocked state.

As shown in Fig. 16, the balloon sleeve member 20 is in an inflated state. At this time, the push rod 206 is pushed to the bottom end of the air reservoir 2000, the balloon 2110 is inflated to the maximum, and the balloon switch 205 is in the locked state. The rod 206 is locked by the balloon switch 205. If the balloon switch 205 is pressed by the external force F3 at this time, the balloon switch 205 will be unlocked, and at the same time, the push rod 206 and the push rod seal 207 will be pushed out by the push rod spring 208 to contact the balloon cover 203, inside the balloon 2110. The gas is again sucked back into the air reservoir 2000, and the balloon 2110 is returned to the contracted state.

The novel balloon puncture tube of the invention has the advantages of simple structure and convenient use; the inflation and deflation state of the balloon can be easily switched during use, and has a fixed inflation amount and a deflation amount, which can reduce the operation difficulty of the product, shorten the operation time, and avoid A design in which the balloon is inflated too much or the inflation is too small, resulting in a risk of detachment of the trocar.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention, and those skilled in the art can also make the above description. It is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

A novel balloon puncture tube characterized by comprising a sealing member, a balloon sleeve member and a fixing ring member;

The balloon sleeve component includes a sleeve, a gas injection valve, a balloon cover, a balloon switch, a push rod, a push rod seal, and a balloon tube; the sleeve has a gas injection hole, a gas storage chamber, and a gas groove; The gas injection valve and the sleeve are fixedly connected at the gas injection hole; the balloon cover and the gas storage chamber are fixedly connected, the push rod and the push rod seal can move up and down in the gas storage chamber, and the balloon switch can move forward and backward in the balloon cover The balloon tube has a balloon and is sleeved on the sleeve, and the gas in the gas storage chamber can reach the balloon through the air tank;

The retaining ring member is sleeved on the balloon sleeve member, and the two are movably connected and fixedly coupled.
A novel balloon puncture tube according to claim 1, wherein said sealing member comprises a sealing upper cover, an upper ring block, an upper protective sheet, a sealing ring, a lower protective sheet, a lower ring block, and a sealed lower cover a gas barrier valve and a sealing inner cover; the lower ring block sequentially connects two interlaced lower protective sheets, a sealing ring, two interlaced upper protective sheets and an upper ring block through a positioning post, and the sealing ring is sealed The upper cover and the sealing lower cover are tightly sealed; the gas blocking valve is pressed and fixed by the sealing lower cover and the sealing inner cover.
A novel balloon puncture tube according to claim 1, wherein said sealing member and said balloon sleeve member are snap-fitted.
A novel balloon puncture tube according to claim 2, wherein said choke valve has an elliptical structure as a whole.
A novel balloon puncture tube according to claim 1, wherein the sleeve has a sleeve body, and a gas injection hole is provided on an upper side wall of the sleeve body, below the gas injection hole, and the sleeve body A gas storage chamber is formed on one side, and a gas groove is formed on the surface of the sleeve body below the gas storage chamber.
A novel balloon puncture tube according to claim 1, wherein the balloon tube has a balloon tube body and a balloon located at a lower portion of the tube body; the balloon tube is sleeved in the sleeve of the sleeve On the body.
A novel balloon puncture tube according to claim 1, wherein said balloon sleeve member further comprises a valve switch, a balloon cover, a switch spring, a push rod spring; said valve switch and said gas injection valve The movable sealing connection, the valve switch can be rotated in the gas injection valve; the one end of the push rod spring is sleeved in the gas storage chamber, and one end is sleeved in the push rod; the bottom end of the push rod is sealedly connected with the push rod, and the upper end passes through the ball a capsule switch and a balloon cover; the switch spring is located between the balloon switch and the balloon cover.
A novel balloon puncture tube according to claim 1, wherein said balloon sleeve member further comprises a sealant and a fixing cord; said fixing cord fixing the balloon tube and the sleeve, said sealing The glue seals the balloon tube and the cannula.
A novel balloon puncture tube according to claim 1, wherein the fixing ring member comprises a fixed switch and a fixing ring, the fixed switch is sleeved on the fixing ring, and the fixed switch is composed of a loose ring and a tight ring. The inner diameter of the loose ring is larger than the inner diameter of the tight ring.