CN102198299B

CN102198299B - Medical circulating type cooling injection pump

Info

Publication number: CN102198299B
Application number: CN 201010130791
Authority: CN
Inventors: 大平永敏
Original assignee: SHANGHAI BAITA MEDICAL PHARMACEUTICAL CO Ltd
Current assignee: SHANGHAI BAITA MEDICAL PHARMACEUTICAL CO Ltd
Priority date: 2010-03-23
Filing date: 2010-03-23
Publication date: 2013-01-16
Anticipated expiration: 2030-03-23
Also published as: CN102198299A

Abstract

The invention relates to a medical circulating type cooling injection pump. The injection pump consists of a shell, an instrument panel, a motor, a single chip computer, a linkage disc, cooling grooves, an injector, a double-cavity dura mater outer conduit and push rods, wherein the shell is rectangular, the instrument panel is arranged on the front end of the shell, the motor is arranged below the instrument panel, the linkage disc is connected with the motor, the two cooling grooves are symmetrically arranged on the two sides of the instrument panel, a barrel of the injector is clamped in the cooling grooves, the rear parts of push rods of the injectors are clamped on the tail parts of the push rods, the double-cavity dura mater outer conduit is Y-shaped, two connectors on the upper end of the outer conduit are respectively connected with the front end of the injectors, and the two push rods are respectively arranged on the two sides of the linkage disc. Compared with the prior art, the invention has the advantages of strong sterility, simpleness and convenience for use, large application range and the like.

Description

A kind of medical circulating type cooling injection pump

Technical field

The present invention relates to a kind of Novel medical machinery, especially relate to a kind of medical circulating type cooling injection pump.

Background technology

In the clinical treatment field, the artificial hypothermia can reduce the minimizing of histiocytic metabolism and regional blood flow, and nervous system reduces pain reaction under low temperature state, and the effect of paralysis and analgesic is arranged.Because cooling can cause that the activeness of neurocyte is low, the cell discharge weakens conduction and slows down, or the secretion of endogenous opiatepeptide increase, causes analgesic effect.Can be used in the chronicity analgesia therapy of postoperative pain therapy and cancer of late stage, replace excessively using analgesic, the use of prevention anesthesia or analgesic and the side effect and the drug resistance that cause.At present, domestic and international postoperative analgesia therapy adopts drug injection or Continuous Epidural administration more, and the analgesia of cancer of late stage also all is to be controlled to be the master with medicine.

After the spinal cord injury or the lumbago patient, the local cold treatment of spinal cord, seriality is poured into epidural space with low-temperature normal saline, can reduce hemorrhage, edema or alleviate lumbago, also can add the neurocyte nutrient in circulating fluid, answer and the regeneration of promotion cell function.

At present, at home and abroad basically with disposable injection low-temperature normal saline perfusion epidural space, fully neither one desirable, simple, circulating type cooling injection pump easy to use.

Summary of the invention

Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of aseptic result good, use simply and easily medical circulating type cooling injection pump.

Purpose of the present invention can be achieved through the following technical solutions:

A kind of medical circulating type cooling injection pump, it is characterized in that, this syringe pump is by shell, the instrument face, single-chip microcomputer, motor, the interlock disk, cooling bath, syringe, two-chamber epidural catheter and catch bar form, described shell is rectangular shape, described instrument face is located at the front end of shell, described motor is located at the below of interlock disk, described interlock disk is connected with single-chip microcomputer, described cooling bath has two, be symmetricly set on the both sides of instrument face, the syringe of described syringe is fastened in the cooling bath, and the rear portion of the push rod of this syringe is fastened on the catch bar afterbody, described two-chamber epidural catheter is " Y " shape, two connectors of upper end connect with the front end that is connected syringe respectively, and described catch bar has two, are located at respectively the both sides of interlock disk.

Injection speed console panel, temperature console panel, temperature display and Speed display screen are set on the described instrument face.

The outer of described interlock disk is provided with dentation, the catch bar engagement connection of this interlock disk and both sides.

Lower cooling fin is set in the described cooling bath, on the lid of this cooling bath cooling fin is set, in described upper cooling fin and the lower cooling fin cooling material is set, rear portion in the cooling bath arranges groove, the bottom of cooling bath arranges semiconductor element, this semiconductor element is connected with single-chip microcomputer, can make cooling bath work after the energising, and the syringe that is arranged in the cooling bath is carried out cooling processing.

Described cooling material is flow-like silica gel, and this silica gel places in the thin film that covers on cooling fin and the lower cooling fin, forms inaccessible cavity, contacts with injector surface by thin film.

Described syringe comprises the syringe of 50ml or the syringe of 100ml, and the tail end of this injector syringe is fastened in the groove at cooling bath rear portion, and syringe can be changed at any time.

Described two-chamber epidural catheter is " Y " shape, the double channel catheter of being made by medical polyethylene, the top of this two-chamber epidural catheter is two pipelines, a conduit is formed at the bottom, this catheter interior is two tube chambers, the outlet of one of them tube chamber is at the end of this conduit, and the outlet of another tube chamber is located at the top of catheter tip, and the distance between the catheter tip is 1/20 of catheter length.

Described catch bar is in snap close is fastened on housing, this catch bar is near the interlock disk one side setting depression corresponding with interlock disk outer dentation, the dentation concave face of catch bar contacts with interlock disk outer dentation, be connected with interlock disk buckle through this depression, can drive catch bar and move forward and backward, so that the replacing of syringe, catch bar arranges elongate recesses near a side of cooling bath, the push rod afterbody arranges draw-in groove, links with the trailer card of injector push-rod to connect.

Compared with prior art, the present invention has the following advantages:

(1) aseptic is strong: syringe directly is connected with the two-chamber epidural catheter, and catheter proximal end is inserted and formed a sealing system in the epidural space, thereby reaches preferably aseptic result;

(2) cooling system and syringe are connected as a single entity, and use simple, convenient;

(3) have wide range of applications, especially can be widely used at medical field.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is internal structure sketch map of the present invention;

Fig. 3 is the structural representation of two-chamber epidural catheter;

Fig. 4 is the partial enlarged drawing of catch bar front portion;

Fig. 5 is the structural representation of motor.

Among the figure 1 be shell, 2 for the instrument face, 21 for the injection speed console panel, 22 for the temperature console panel, 23 for Speed display screen, 24 for temperature display, 3 for single-chip microcomputer, 4 for the interlock disk, 5 for cooling bath, 51 for the cooling bath lid, 52 for upper cooling fin, 53 for lower cooling fin, 54 for groove, 55 for chiller, 6 for syringe, 61 for syringe, 62 for push rod, 7 for the two-chamber epidural catheter, 8 for catch bar, 81 for elongate recesses, 82 for draw-in groove, 83 be that snap close, 9 is motor.

The specific embodiment

The present invention is described in detail below in conjunction with the drawings and specific embodiments.

Embodiment

A kind of medical circulating type cooling injection pump, its structure as shown in Figure 1, internal structure as shown in Figure 2, this syringe pump is comprised of shell 1, instrument face 2, single-chip microcomputer 3, interlock disk 4, cooling bath 5, syringe 6, epidural space conduit 7, catch bar 8 and motor 9.The rotation direction of single-chip microcomputer 3 systems control temperature, injection speed and motor 9.

Shell 1 is rectangular shape, and instrument face 2 is located at the front end of shell 1, and the above arranges injection speed console panel 21, temperature console panel 22, Speed display screen 23 and temperature display 24.Motor 9 is located at the below of interlock disk 4, is provided with the electric wire of logical anodal electric current and cathodal current in the motor 9, and motor 9 can clockwise or rotate counterclockwise during energising, turns to by single-chip microcomputer 3 controls; Interlock disk 4 is connected with motor 9, as shown in Figure 5.Motor 9 drives interlock disk 4 and rotates, and the outer of this interlock disk 4 is provided with dentation, catch bar 8 engagement connections of interlock disk 4 and both sides.Cooling bath 5 has two, be symmetricly set on the both sides of instrument face 2, cooling bath 5 is interior to arrange lower cooling fin 53, and cooling bath lid 51 is set on the cooling bath 5, groove covers cooling fin 52 is set, and upper cooling fin 52 and the lower cooling fin 53 interior silica gel of flow-like that arrange are as cooling material.Rear portion in the cooling bath 5 arranges groove 54, and the bottom of cooling bath 5 arranges semiconductor element as chiller 55, and this chiller 55 is connected with single-chip microcomputer 3, can make cooling bath 5 work after the energising, and the syringe 6 that is arranged in the cooling bath 5 is carried out cooling processing.Temperature is by single-chip microcomputer 3 controls, the syringe of the 50ml that syringe 6 is or the syringe of 100ml, injector syringe 61 is fastened in the cooling bath 5, and the tail end of syringe 61 is fastened in the groove 54 at cooling bath rear portion, and the rear portion of injector push-rod 62 is fastened in the draw-in groove 82 of catch bar 8 afterbodys.Two-chamber epidural catheter 7 is " Y " shape, its structure as shown in Figure 3, the double channel catheter of being made by medical polyethylene, two connectors of upper end connect with the front end that is connected syringe 6 respectively, the top of this two-chamber epidural catheter 7 is two pipelines, locate to form a double channel catheter at 10 centimeters, the total length of this conduit is 100 centimeters, inside is two tube chambers, the outlet of one of them tube chamber is at the end of this conduit, and the outlet of another tube chamber is located at the top of catheter tip, and the distance between the catheter tip is 5 centimeters, the length of opening is 5 millimeters, and width is 2 millimeters.Catch bar 8 has two, is located at respectively the both sides of interlock disk 4.Catch bar 8 is in snap close 63 is fastened on housing 1, catch bar 8 is near a side setting of interlock disk 4 depression corresponding with interlock disk 4 outer dentations, be connected with interlock disk 4 buckles through this depression, catch bar 8 arranges elongate recesses 81 near a side of cooling bath 5, front portion structure as shown in Figure 4, push rod 8 afterbodys arrange draw-in groove 82, link with the trailer card of injector push-rod 62 to connect.Cooling bath lid 51 can freely be opened and closure.

Interlock disk 4 is when clockwise rotating, and the catch bar 8 that drives the right travels forward, and the catch bar 8 on the left side move backward, thus the push rod 62 of the syringe 6 on the right of driving rectilinear motion forward, and the push rod 62 of the syringe 6 on the left side is rectilinear motion backward.Liquid in the right syringe 6 enters in the tube chamber on two-chamber epidural catheter 7 right sides, left side syringe 6 moves backward owing to push rod 62, produce resorption, the tube chamber of liquid through the left side that pushes in the tube chamber on two-chamber epidural catheter 7 right sides sucked in the syringe 6 on the left side.When the push rod 62 on the right moves to the bottom, connect another wire, utilize motor 9 to drive 4 generations of interlock disk and rotate counterclockwise.Controlling injection speeds by injection speed console panel 21 and temperature console panel 22 is 50ml/min, 25ml/min, 10ml/min, and temperature is 15 degree, 10 degree, 5 degree, 0 degree.Turning to of motor 9, chilling temperature, injection speed is by single-chip microcomputer 3 controls.

Chiller 55 is semiconductor element, is arranged mutually by P quasiconductor and N quasiconductor to consist of.Chiller 55 is connected with lower cooling fin 53, and being connected with general conductor between P quasiconductor and the N quasiconductor forms complete circuit.The cold junction temperature of lower cooling fin 53 and upper cooling fin 52 can reach-10～-20 ℃ after the energising, by silica gel the liquid in the syringe 6 is cooled off.The liquid of cooling is gone out from an opening of epidural space conduit 7, is entered by another opening, thereby forms circulating cooling system, by epidural space spinal cord is carried out Local cooling.

Claims

1. medical circulating type cooling injection pump, it is characterized in that, this syringe pump is by shell, the instrument face, single-chip microcomputer, motor, the interlock disk, cooling bath, syringe, two-chamber epidural catheter and catch bar form, described shell is rectangular shape, described instrument face is located at the front end of shell, described motor is located at the below of interlock disk, described interlock disk is connected with single-chip microcomputer, described cooling bath has two, be symmetricly set on the both sides of instrument face, the syringe of described syringe is fastened in the cooling bath, and the rear portion of the push rod of this syringe is fastened on the catch bar afterbody, described two-chamber epidural catheter is " Y " shape, two connectors of upper end connect with the front end that is connected syringe respectively, and described catch bar has two, are located at respectively the both sides of interlock disk;

The outer of described interlock disk is provided with dentation, the catch bar engagement connection of this interlock disk and both sides;

Lower cooling fin is set in the described cooling bath, on the lid of this cooling bath cooling fin is set, in described upper cooling fin and the lower cooling fin cooling material is set, rear portion in the cooling bath arranges groove, the bottom of cooling bath arranges semiconductor element, this semiconductor element is connected with single-chip microcomputer, can make cooling bath work after the energising, and the syringe that is arranged in the cooling bath is carried out cooling processing;

Described catch bar is in snap close is fastened on housing, this catch bar is near the interlock disk one side setting depression corresponding with interlock disk outer dentation, the dentation concave face of catch bar contacts with interlock disk outer dentation, be connected with interlock disk buckle through this depression, can drive catch bar and move forward and backward, so that the replacing of syringe, catch bar arranges elongate recesses near a side of cooling bath, the catch bar afterbody arranges draw-in groove, links with the trailer card of injector push-rod to connect.

2. a kind of medical circulating type cooling injection pump according to claim 1 is characterized in that, injection speed console panel, temperature console panel, temperature display and Speed display screen are set on the described instrument face.

3. a kind of medical circulating type cooling injection pump according to claim 1, it is characterized in that described cooling material is flow-like silica gel, this silica gel places in the thin film that covers on cooling fin and the lower cooling fin, form inaccessible cavity, contact with injector surface by thin film.

4. a kind of medical circulating type cooling injection pump according to claim 1, it is characterized in that, described syringe comprises the syringe of 50ml or the syringe of 100ml, and the tail end of this injector syringe is fastened in the groove at cooling bath rear portion, and syringe can be changed at any time.

5. a kind of medical circulating type cooling injection pump according to claim 1, it is characterized in that, described two-chamber epidural catheter is " Y " shape, by the double channel catheter that medical polyethylene is made, the top of this two-chamber epidural catheter is two pipelines, and a conduit is formed at the bottom, this catheter interior is two tube chambers, the outlet of one of them tube chamber is at the end of this conduit, and the outlet of another tube chamber is located at the top of catheter tip, and the distance between the catheter tip is 1/20 of catheter length.